Ratschow, Aaron D. ; Bauer, Lisa S. ; Bista, Pravash ; Weber, Stefan A. L. ; Butt, Hans-Jürgen ; Hardt, Steffen (2023)
How charges separate when surfaces are dewetted.
doi: 10.48550/arXiv.2305.02172
Report, Bibliographie

Li, Xiaomei ; Ratschow, Aaron D. ; Hardt, Steffen ; Butt, Hans-Jürgen (2023)
Surface Charge Deposition by Moving Drops Reduces Contact Angles.
In: Physical Review Letters, 131 (22)
doi: 10.1103/PhysRevLett.131.228201
Artikel, Bibliographie

Dehe, Sebastian ; Hartmann, Maximilian ; Bandopadhyay, Aditya ; Hardt, Steffen (2022)
The Spatial Structure of Electrostatically Forced Faraday Waves.
In: Journal of Fluid Mechanics, 939
doi: 10.1017/jfm.2022.163
Artikel, Bibliographie

Weimar, Lukas ; Hu, Luyang ; Baier, Tobias ; Hardt, Steffen (2022)
Drop impact on a sticky porous surface with gas discharge: transformation of drops into bubbles.
In: Journal of Fluid Mechanics, 953
doi: 10.1017/jfm.2022.921
Artikel, Bibliographie

Hartmann, Johannes Jürgen ; Schür, Maximilian T. ; Hardt, Steffen (2022)
Manipulation and control of droplets on surfaces in a homogeneous electric field.
In: Nature Communications, 13 (1)
doi: 10.1038/s41467-021-27879-0
Artikel, Bibliographie

May, Alexander ; Hartmann, Johannes Jürgen ; Hardt, Steffen (2022)
Phase separation in evaporating all-aqueous sessile drops.
In: Soft Matter, 18 (34)
doi: 10.1039/d2sm00613h
Artikel, Bibliographie

Li, Xiaomei ; Bista, Pravash ; Stetten, Amy Z. ; Bonart, Henning ; Schür, Maximilian T. ; Hardt, Steffen ; Bodziony, Francisco ; Marschall, Holger ; Saal, Alexander ; Deng, Xu ; Berger, Rüdiger ; Weber, Stefan A. L. ; Butt, Hans-Jürgen (2022)
Spontaneous charging affects the motion of sliding drops.
In: Nature Physics, 18 (6)
doi: 10.1038/s41567-022-01563-6
Artikel, Bibliographie

Dehe, Sebastian ; Hardt, Steffen (2021)
Deformation modes of an oil-water interface under a local electric field: From Taylor cones to surface dimples.
In: Physical Review Fluids, 6 (12)
doi: 10.1103/PhysRevFluids.6.123702
Artikel, Bibliographie

Dehe, Sebastian ; Rehm, Imke-Sophie ; Hardt, Steffen (2021)
Hydrodynamic dispersion in Hele-Shaw flows with inhomogeneous wall boundary conditions.
In: Journal of Fluid Mechanics, 925
doi: 10.1017/jfm.2021.648
Artikel, Bibliographie

Scheiger, Johannes M. ; Kuzina, Mariia A. ; Eigenbrod, Michael ; Wu, Yanchen ; Wang, Fei ; Heißler, Stefan ; Hardt, Steffen ; Nestler, Britta ; Levkin, Pavel A. (2021)
Liquid Wells as Self-Healing, Functional Analogues to Solid Vessels.
In: Advanced Materials, 33 (23)
doi: 10.1002/adma.202100117
Artikel, Bibliographie

Boyko, Evgeniy ; Bacheva, Vesna ; Eigenbrod, Michael ; Paratore, Federico ; Gat, Amir D. ; Hardt, Steffen ; Bercovici, Moran (2021)
Microscale hydrodynamic cloaking and shielding via electro-osmosis.
In: Physical Review Letters, 126 (18)
doi: 10.1103/PhysRevLett.126.184502
Artikel, Bibliographie

Gebhard, Florian ; Hartmann, Johannes ; Hardt, Steffen (2021)
Interaction of proteins with phase boundaries in aqueous two-phase systems under electric fields.
In: Soft Matter, 17 (14)
doi: 10.1039/D0SM01921F
Artikel, Bibliographie

Lv, Cunjing ; Hardt, Steffen (2021)
Wetting of a liquid annulus in a capillary tube.
In: Soft Matter, 17 (7)
doi: 10.1039/D0SM00346H
Artikel, Bibliographie

Dehe, Sebastian ; Rofman, Baruch ; Bercovici, Moran ; Hardt, Steffen (2020)
Electro-osmotic flow enhancement over superhydrophobic surfaces.
In: Physical Review Fluids, 5
doi: 10.1103/PhysRevFluids.5.053701
Artikel, Bibliographie

Lv, Cunjing ; Varanakkottu, Subramanyan N. ; Hardt, Steffen (2020)
Liquid plug formation from heated binary mixtures in capillary tubes.
In: Journal of Fluid Mechanics, 889
doi: 10.1017/jfm.2020.80
Artikel, Bibliographie

Khalil, Adnan ; Zimmermann, Matthias ; Bell, Alena K. ; Kunz, Ulrike ; Hardt, Steffen ; Kleebe, Hans-Joachim ; Stark, Robert W. ; Stephan, Peter ; Andrieu-Brunsen, Annette (2020)
Insights into the interplay of wetting and transport in mesoporous silica films.
In: Journal of Colloid and Interface Science, 560
doi: 10.1016/j.jcis.2019.09.093
Artikel, Bibliographie

Hardt, Steffen ; Hartmann, Johannes ; Zhao, Sicheng ; Bandopadhyay, Aditya (2020)
Electric-Field-Induced Pattern Formation in Layers of DNA Molecules at the Interface between Two Immiscible Liquids.
In: Physical Review Letters, 124 (6)
doi: 10.1103/PhysRevLett.124.064501
Artikel, Bibliographie

Shojaeian, Mostafa ; Hardt, Steffen (2020)
Mass Transfer via Femtoliter Droplets in Ping-Pong Mode.
In: Physical Review Applied, 13 (1)
doi: 10.1103/PhysRevApplied.13.014015
Artikel, Bibliographie

Baier, Tobias ; Hardt, Steffen (2020)
Gas separation in a Knudsen pump inspired by a Crookes radiometer.
In: Microfluidics and Nanofluidics, 24 (6)
doi: 10.1007/s10404-020-02342-6
Artikel, Bibliographie

Rofman, Baruch ; Dehe, Sebastian ; Frumkin, Valeri ; Hardt, Steffen ; Bercovici, Moran (2020)
Intermediate States of Wetting on Hierarchical Superhydrophobic Surfaces.
In: Langmuir, 36 (20)
doi: 10.1021/acs.langmuir.0c00499
Artikel, Bibliographie

Henrich, Franziska ; Linke, Dorota ; Sauer, Hans Martin ; Dörsam, Edgar ; Hardt, Steffen ; Butt, Hans-Jürgen ; Auernhammer, Günter K. (2019)
Forced dynamic dewetting of structured surfaces: Influence of surfactants.
In: Physical Review Fluids, 4
doi: 10.1103/PhysRevFluids.4.124202
Artikel, Bibliographie

Hartmann, Maximilian ; Fricke, Mathis ; Weimar, Lukas ; Gründing, Dirk ; Marić, Tomislav ; Bothe, Dieter ; Hardt, Steffen (2019)
Breakup dynamics of capillary bridges on hydrophobic stripes.
doi: 10.48550/arXiv.1910.01887
Report, Bibliographie

Sadeghi, Arman ; Azari, Milad ; Hardt, Steffen (2019)
Electroosmotic flow in soft microchannels at high grafting densities.
In: Physical Review Fluids, 4 (6)
doi: 10.1103/PhysRevFluids.4.063701
Artikel, Bibliographie

Sinn, Nico ; Schür, Maximilian T. ; Hardt, Steffen (2019)
No-contact electrostatic manipulation of droplets on liquid-infused surfaces: Experiments and numerical simulations.
In: Applied Physics Letters, 114 (21)
doi: 10.1063/1.5091836
Artikel, Bibliographie

Shojaeian, Mostafa ; Lehr, François-Xavier ; Göringer, H. Ulrich ; Hardt, Steffen (2019)
On-Demand Production of Femtoliter Drops in Microchannels and Their Use as Biological Reaction Compartments.
In: Analytical Chemistry, 91 (5)
doi: 10.1021/acs.analchem.8b05063
Artikel, Bibliographie

Roy, Tamal ; Szuttor, Kai ; Smiatek, Jens ; Holm, Christian ; Hardt, Steffen (2019)
Conformation and Dynamics of Long-Chain End-Tethered Polymers in Microchannels.
In: Polymers, 11 (3)
doi: 10.3390/polym11030488
Artikel, Bibliographie

Paulssen, Dorothea ; Hardt, Steffen ; Levkin, Pavel A. (2019)
Droplet Sorting and Manipulation on Patterned Two-Phase Slippery Lubricant-Infused Surface.
In: ACS Applied Materials & Interfaces, 11 (17)
doi: 10.1021/acsami.8b21879
Artikel, Bibliographie

Zhao, Sicheng ; Dietzel, Mathias ; Hardt, Steffen (2019)
Faraday instability of a liquid layer on a lubrication film.
In: Journal of Fluid Mechanics, 879
doi: 10.1017/jfm.2019.684
Artikel, Bibliographie

Hartmann, Maximilian ; Hardt, Steffen (2019)
Stability of Evaporating Droplets on Chemically Patterned Surfaces.
In: Langmuir, 35 (14)
doi: 10.1021/acs.langmuir.9b00172
Artikel, Bibliographie

Sinn, Nico ; Schür, Maximilian ; Hardt, Steffen (2018)
No contact-manipulation of drops on a liquid-infused surface using electric fields.
71st Annual Meeting of the APS Division of Fluid Dynamics. Atlanta (18.11.2018-20.11.2018)
Konferenzveröffentlichung, Bibliographie

de Maleprade, Hélène ; Soto, Dan ; Quéré, David ; Hinch, E. John ; Baier, Tobias ; Schür, Maximilian T. ; Hardt, Steffen (2018)
Air-propelled, herringbone-textured platelets.
In: Physical Review Fluids, 3 (104101)
doi: 10.1103/PhysRevFluids.3.104101
Artikel, Bibliographie

Baier, Tobias ; Tiwari, Sudarshan ; Shrestha, Samir ; Klar, Axel ; Hardt, Steffen (2018)
Thermophoresis of Janus particles at large Knudsen numbers.
In: Physical Review Fluids, 3 (094202)
doi: 10.1103/PhysRevFluids.3.094202
Artikel, Bibliographie

Auernhammer, Günter K. ; Henrich, Franziska ; Linke, Dorota ; Sauer, Hans Martin ; Dörsam, Edgar ; Hardt, Steffen ; Butt, Hans-Jürgen (2018)
Forced dynamic dewetting of structured surfaces: Influence of surfactants.
DPG-Frühjahrstagung und EPS-CMD27. Berlin (11.03.2018-16.03.2018)
Konferenzveröffentlichung, Bibliographie

Lv, Cunjing ; Varanakkottu, Subramanyan Namboodiri ; Baier, Tobias ; Hardt, Steffen (2018)
Controlling the Trajectories of Nano/Micro Particles Using Light-Actuated Marangoni Flow.
In: Nano Letters, 18 (11)
doi: 10.1021/acs.nanolett.8b02814
Artikel, Bibliographie

Barz, Dominik P. J. ; Scholz, Mathias ; Hardt, Steffen (2018)
Electrokinetic manipulation of the von Kármán vortex street in the wake of a confined cylinder. I. DC electric field.
In: Physics of Fluids, 30 (8)
doi: 10.1063/1.5037595
Artikel, Bibliographie

Eigenbrod, Michael ; Bihler, Florian ; Hardt, Steffen (2018)
Electrokinetics of a particle attached to a fluid interface: Electrophoretic mobility and interfacial deformation.
In: Physical Review Fluids, 3 (10)
doi: 10.1103/PhysRevFluids.3.103701
Artikel, Bibliographie

Shojaeian, Mostafa ; Hardt, Steffen (2018)
Fast electric control of the droplet size in a microfluidic T-junction droplet generator.
In: Applied Physics Letters, 112 (19)
doi: 10.1063/1.5025874
Artikel, Bibliographie

Vécsei, Miklós ; Dietzel, Mathias ; Hardt, Steffen (2018)
Interfacial instability of liquid films coating the walls of a parallel-plate channel and sheared by a gas flow.
In: Microfluidics and Nanofluidics, 22 (9)
doi: 10.1007/s10404-018-2111-z
Artikel, Bibliographie

Lv, Cunjing ; Eigenbrod, Michael ; Hardt, Steffen (2018)
Stability and collapse of holes in liquid layers.
In: Journal of Fluid Mechanics, 855
doi: 10.1017/jfm.2018.680
Artikel, Bibliographie

Bandopadhyay, A. ; Hardt, Steffen (2017)
Stability of horizontal viscous fluid layers in a vertical arbitrary time periodic electric field.
In: Physics of Fluids, 29 (124101)
Artikel, Bibliographie

Hartmann, Maximilian ; Hardt, Steffen (2017)
Breakup Behavior of a Capillary Bridge on a Hydrophobic Stripe Separating two Hydrophilic Stripes.
70th Annual Meeting of the APS Division of Fluid Dynamics. Denver, Colorado (19.11.2017-21.11.2017)
Konferenzveröffentlichung, Bibliographie

Roy, T. ; Szuttor, K. ; Smiatek, J. ; Holm, C. ; Hardt, Steffen (2017)
Electric‐field‐induced stretching of surface‐tethered polyelectrolytes in a microchannel.
In: Physical Review, 96 (3)
Artikel, Bibliographie

Damian, I.R. ; Hardt, Steffen ; Balan, C. (2017)
From flow focusing to vortex formation in crossing microchannels.
In: Microfluidics and Nanofluidics, 21 (142)
Artikel, Bibliographie

Roy, T. ; Szuttor, K. ; Smiatek, J. ; Holm, C. ; Hardt, Steffen (2017)
Stretching of surface‐tethered polymers in pressure‐driven flow under confinement.
In: Soft Matter, 13
Artikel, Bibliographie

Szuttor, K. ; Roy, T. ; Hardt, Steffen ; Holm, C. ; Smiatek, J. (2017)
The stretching force on a tethered polymer in pressure‐driven flow.
In: Journal of Chemical Physics, 147 (034902)
Artikel, Bibliographie

Baier, Tobias ; Hardt, Steffen ; Shahabi, Vahid ; Roohi, Ehsan (2017)
Knudsen pump inspired by Crookes radiometer with a specular wall.
In: Physical Review Fluids, 2 (3)
doi: 10.1103/PhysRevFluids.2.033401
Artikel, Bibliographie

Dietzel, Mathias ; Hardt, Steffen (2017)
Flow and streaming potential of an electrolyte in a channel with an axial temperature gradient.
In: Journal of Fluid Mechanics, 813
Artikel, Bibliographie

Shahabi, V. ; Baier, T. ; Roohi, E. ; Hardt, Steffen (2017)
Thermally induced gas flows in ratchet channels with diffuse and specular boundaries.
In: Scientific Reports, 7 (41412)
doi: 10.1038/srep41412
Artikel, Bibliographie

Roy, Tamal ; Szuttor, Kai ; Smiatek, Jens ; Holm, Christian ; Hardt, Steffen (2017)
Electric-field-induced stretching of surface-tethered polyelectrolytes in a microchannel.
In: Physical Review E, 96 (3)
doi: 10.1103/PhysRevE.96.032503
Artikel, Bibliographie

Roy, Tamal ; Szuttor, Kai ; Smiatek, Jens ; Holm, Christian ; Hardt, Steffen (2017)
Stretching of surface-tethered polymers in pressure-driven flow under confinement.
In: Soft Matter, 13 (36)
doi: 10.1039/c7sm00306d
Artikel, Bibliographie

Szuttor, Kai ; Roy, Tamal ; Hardt, Steffen ; Holm, Christian ; Smiatek, Jens (2017)
The stretching force on a tethered polymer in pressure-driven flow.
In: The Journal of Chemical Physics, 147 (3)
doi: 10.1063/1.4993619
Artikel, Bibliographie

Dörr, A. ; Hardt, Steffen ; Masoud, H. ; Stone, H. A. (2016)
Drag and diffusion coefficients of a spherical particle attached to a fluid interface.
In: Journal of Fluid Mechanics, 790
Artikel, Bibliographie

Hardt, Steffen (2016)
Free-molecule heat transfer in a conservative force field between parallel surfaces.
In: Physical Review E, 93 (5)
Artikel, Bibliographie

Dietzel, Mathias ; Hardt, Steffen (2016)
Thermoelectricity in confined liquid electrolytes.
In: Physical Review Letters, 116 (22)
Artikel, Bibliographie

Pandey, Anamika ; Hardt, Steffen ; Klar, Axel ; Tiwari, Sudarshan (2016)
Brownian dynamics of rigid particles in an incompressible fluctuating fluid by a meshfree method.
In: Computers and Fluids, 127
Artikel, Bibliographie

Nejati, Iman ; Dietzel, Mathias ; Hardt, Steffen (2016)
Exploiting cellular convection in a thick liquid layer to pattern a thin polymer film.
In: Applied Physics Letters, 108 (051604)
Artikel, Bibliographie

Tiwari, Sudarshan ; Klar, Axel ; Hardt, Steffen (2016)
Numerical simulation of wetting phenomena by a meshfree particle method.
In: Journal of Computational and Applied Mathematics, 292
Artikel, Bibliographie

Doerr, Aaron ; Hardt, Steffen ; Masoud, Hassan ; Stone, Howard A. (2016)
Drag and diffusion coefficients of a spherical particle attached to a fluid-fluid interface.
In: Journal of Fluid Mechanics, 790
Artikel, Bibliographie

De, Simanta ; Bhattacharyya, Somnath ; Hardt, Steffen (2015)
Electroosmotic flow in a slit nanochannel with superhydrophobic walls.
In: Microfluidics and Nanofluidics, 19 (6)
Artikel, Bibliographie

Hajian, Ramin ; Hardt, Steffen (2015)
Formation and lateral migration of nanodroplets via solvent shifting in a microfluidic device.
In: Microfluidics and Nanofluidics, 19 (6)
Artikel, Bibliographie

Nejati, I. ; Dietzel, M. ; Hardt, Steffen (2015)
Conjugated liquid layers driven by the short-wavelength Bénard–Marangoni instability: experiment and numerical simulation.
In: J. Fluid Mech., 783
Artikel, Bibliographie

Schönecker, Clarissa ; Hardt, Steffen (2015)
Assessment of drag reduction at slippery, topographically structured surfaces.
In: Microfluidics and Nanofluidics, 19 (1)
Artikel, Bibliographie

Sinn, N. ; Alishahi, M. ; Hardt, Steffen (2015)
Detachment of particles and particle clusters from liquid/liquid interfaces.
In: J. Colloid Interface Science, 458
Artikel, Bibliographie

Dörr, A. ; Hardt, Steffen (2015)
Driven particles at fluid interfaces acting as capillary dipoles.
In: Journal of Fluid Mechanics, 770
Artikel, Bibliographie

Eifert, Alexander ; Petit, Julien ; Baier, Tobias ; Bonaccurso, Elmar ; Hardt, Steffen (2015)
Inscribing wettability gradients onto polymer substrates with different stiffness using corona discharge in point-to-plane geometry.
In: Applied Surface Science, 330
Artikel, Bibliographie

Shrestha, S. ; Tiwari, S. ; Klar, A. ; Hardt, Steffen (2015)
Numerical simulation of a moving rigid body in a rarefied gas.
In: Journal of Computational Physics, 292
Artikel, Bibliographie

Nejati, Iman ; Dietzel, Mathias ; Hardt, Steffen (2015)
Conjugated liquid layers driven by the short-wavelength Benard-Marangoni instability: experiment and numerical simulation.
In: Journal of Fluid Mechanics, 783
Artikel, Bibliographie

Varanakkottu, S. N. ; Engelbart, H. ; Joshi, S. ; Still, M. ; Xiao, W. ; Hardt, Steffen (2014)
Light-controlled tuning of the optical properties of nanoporous glass.
In: Optics Express, 22 (21)
Artikel, Bibliographie

Hoffmann, A. ; Potje-Kamloth, K. ; Hardt, Steffen ; Bassler, M. (2014)
A robust electrical sensor for contactless control of moving plugs in microfluidic systems with high accurary.
Proc. 2nd International Conference on MicroFluidic Handling Systems. Freiburg (08.10.2014-10.10.2014)
Konferenzveröffentlichung, Bibliographie

Doerr, Aaron ; Hardt, Steffen (2014)
Line tension and reduction of apparent contact angle associated with electric double layers.
In: Physics of Fluids, 26 (082105)
doi: 10.1063/1.4892621
Artikel, Bibliographie

Eifert, Alexander ; Paulssen, Dorothea ; Varanakkottu, Subramanyan Namboodiri ; Baier, Tobias ; Hardt, Steffen (2014)
Simple Fabrication of Robust Water-Repellent Surfaces with Low Contact-Angle Hysteresis Based on Impregnation.
In: Advanced Materials Interfaces, 1 (1300138)
doi: 10.1002/admi.201300138
Artikel, Bibliographie

Baier, T. ; Dölger, J. ; Hardt, Steffen (2014)
Energy harvesting through gas dynamics in the free molecular flow regime between structured surfaces at different temperatures.
In: Phys. Rev., 89 (5)
doi: 10.1103/PhysRevE.89.053003
Artikel, Bibliographie

Vecsei, Miklos ; Dietzel, Mathias ; Hardt, Steffen (2014)
Coupled self-organization: Thermal interaction between two liquid films undergoing long-wavelength instabilities.
In: Physical Review E, 89
Artikel, Bibliographie

Babu, Deepu J. ; Varanakkottu, Subramanyan Namboodiri ; Eifert, Alexander ; Koning, Dirk de ; Cherkashinin, Gennady ; Hardt, Steffen ; Schneider, Joerg J. (2014)
Inscribing Wettability Gradients Onto Superhydrophobic Carbon Nanotube Surfaces.
In: Advanced Materials Interfaces, 1 (2)
doi: 10.1002/admi.201300049
Artikel, Bibliographie

Schönecker, Clarissa ; Hardt, Steffen (2014)
Electro-osmotic flow along superhydrophobic surfaces with embedded electrodes.
In: Physical Review E, 89 (063005)
doi: 10.1103/PhysRevE.89.063005
Artikel, Bibliographie

Khnouf, R. ; Goet, G. ; Baier, T. ; Hardt, Steffen (2014)
Increasing the sensitivity of microfluidics based immunoassays using isotachophoresis.
In: Analyst, 139
doi: 10.1039/c4an00545g
Artikel, Bibliographie

Schönecker, Clarissa ; Baier, T. ; Hardt, Steffen (2014)
Influence of the enclosed fluid on the flow over a microstructured surface in the Cassie state.
In: Journal of Fluid Mechanics, 740
doi: 10.1017/jfm.2013.647
Artikel, Bibliographie

Tiwari, S. ; Klar, A. ; Hardt, Steffen (2014)
Simulations of micro channel gas flows with domain decomposition technique for kinetic and fluid dynamic equations.
Proc. 21st International Conference on Domain Decomposition Methods. INRIA Rennes-Bretagne-Atlantique, France (25.06.2012-29.06.2012)
Konferenzveröffentlichung, Bibliographie

Vécsei, M. ; Dietzel, M. ; Hardt, Steffen (2014)
Thermal interaction between two liquid films undergoing long-wavelength instabilities.
In: Phys. Rev., 89 (5)
doi: 10.1103/PhysRevE.89.053018
Artikel, Bibliographie

Varanakkottu, S. N. ; George, S. D. ; Baier, T. ; Hardt, Steffen ; Ewald, M. ; Biesalski, M. (2013)
MANIPULATION OF MICROPARTICLES AND BIOLOGICAL CELLS USING LIGHT-INDUCED MARANGONI FLOW.
µTAS 2013 , The 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Freiburg (27.10.2013-31.10.2013)
Konferenzveröffentlichung, Bibliographie

Tiwari, S. ; Klar, A. ; Hardt, Steffen ; Donkov, A. (2013)
Coupled solution of the Boltzmann and Navier–Stokes equations in gas–liquid two phase flow.
In: Computers and Fluids, 71
doi: 10.1016/j.compfluid.2012.10.018.
Artikel, Bibliographie

Kania, T. ; Schilder, B. ; Kissel, T. ; Stephan, Peter ; Hardt, Steffen ; Dreizler, A. (2013)
Development of a miniaturized energy converter without moving parts.
In: Flow, Turbulence and Combustion, 90
doi: 10.1007/s10494-012-9418-8
Artikel, Bibliographie

Khnouf, R. ; Goet, G. ; Hardt, Steffen (2013)
Implementation of isotachophoresis in a microfluidic device for the enhamcement of protein immunoassays.
Proc. 2013 Int. Conf. on Microtechnologies in Medicine and Biology,. Marina del Rey, California, USA (10.04.2013-12.04.2013)
Konferenzveröffentlichung, Bibliographie

Goet, G. ; Baier, T. ; Hardt, Steffen ; Sen, A. K. (2013)
Isotachophoresis with emulsions.
In: Biomicrofluidics, 7 (044103)
doi: 10.1063/1.4816347
Artikel, Bibliographie

Schönecker, Clarissa ; Hardt, Steffen (2013)
Longitudinal and transverse flow over a cavity containing a second immiscible fluid.
In: Journal of Fluid Mechanics, 717
doi: 10.1017/jfm.2012.577.
Artikel, Bibliographie

Varanakkottu, S. N. ; George, S. D. ; Baier, T. ; Hardt, Steffen ; Ewald, M. ; Biesalski, M. (2013)
Particle Manipulation Based on Optically Controlled Free Surface Hydrodynamics.
In: Angew. Chem. Int. Ed., 52
doi: 10.1002/anie.201302111
Artikel, Bibliographie

Sinha, A. ; Mollah, A. K. ; Hardt, Steffen ; Ganguly, R. (2013)
Particle dynamics and separation at liquid–liquid interfaces.
In: Soft Matter , 9
doi: 10.1039/c3sm00120b
Artikel, Bibliographie

Baier, T. ; Dupeux, G. ; Herbert, Stefan ; Hardt, Steffen ; Quéré, D. (2013)
Propulsion mechanisms for Leidenfrost solids on ratchets.
In: Physical Review, 87 (2)
doi: 10.1103/PhysRevE.87.021001
Artikel, Bibliographie

Bhattacharyya, S. ; Gopmandal, P. P. ; Baier, T. ; Hardt, Steffen (2013)
Sample dispersion in isotachophoresis with Poiseuille counterflow.
In: Phys. Fluids , 25 (022001)
doi: 10.1063/1.4789967
Artikel, Bibliographie

Dupeux, G. ; Baier, T. ; Bacot, V. ; Hardt, Steffen ; Clanet, C. ; Quéré, D. (2013)
Self-propelling uneven Leidenfrost solids.
In: Phys. Fluids , 25 (051704)
doi: 10.1063/1.4807007
Artikel, Bibliographie

Eifert, A. ; Baier, T. ; Hardt, Steffen (2013)
Small onset voltages in negative corona discharges using the edges of gold and aluminum foils as nano-structured electrodes.
In: Appl. Phys. Lett., 103 (023114)
doi: 10.1063/1.4813556
Artikel, Bibliographie

Hardt, Steffen ; Tiwari, S. ; Baier, T. (2013)
Thermally driven flows between a Leidenfrost solid and a ratchet surface.
In: Phys. Rev. E, 87 (6)
doi: 10.1103/PhysRevE.87.063015.
Artikel, Bibliographie

Petzold, Uwe ; Büchel, Andreas ; Hardt, Steffen ; Halfmann, Thomas (2012)
Imaging diffusion in a microfluidic device by third harmonic microscopy.
In: Experiments in Fluids, 53 (3)
doi: 10.1007/s00348-012-1321-5
Artikel, Bibliographie

Steffes, Clarissa ; Baier, Tobias ; Hardt, Steffen (2012)
Enabling the enhancement of electroosmotic flow over superhydrophobic surfaces by induced charges (vol 376, pg 85, 2011).
In: Colloids and Surfaces a-Physicochemical and Engineering Aspects, 395
Artikel, Bibliographie

Banerjee, U. ; Bit, P. ; Ganguly, R. ; Hardt, Steffen (2012)
Aggregation dynamics of particles in a microchannel due to an applied magnetic field.
In: Microfluidics and Nanofluidics, 13
doi: 10.1007/s10404-012-1053-0
Artikel, Bibliographie

Baret, Jean-Christophe ; Belder, Detlev ; Bier, Frank F. ; Cao, Jialan ; Gruschke, Oliver ; Hardt, Steffen ; Kirschbaum, Michael ; Koehler, J. Michael ; Schumacher, Soeren ; Urban, G. A. ; Viefhues, Martina (2012)
Contributors to the 10th Anniversary Germany issue.
In: Lab on a Chip, 12
Artikel, Bibliographie

Steffes, C. ; Baier, T. ; Hardt, Steffen (2012)
Corrigendum to “Enabling the enhancement of electroosmotic flow over superhydrophobic surfaces by induced charges”.
In: Colloid. Surface A, 395
doi: 10.1016/j.colsurfa.2011.11.019
Artikel, Bibliographie

Dörr, A. ; Hardt, Steffen (2012)
Electric-double-layer structure close to the three-phase contact line in an electrolyte wetting a solid substrate.
In: Physical Review E, 86 (022601)
doi: 10.1103/PhysRevE.86.022601
Artikel, Bibliographie

Doerr, Aaron ; Hardt, Steffen (2012)
Electric-double-layer structure close to the three-phase contact line in an electrolyte wetting a solid substrate.
In: Physical Review E, 86 (2)
Artikel, Bibliographie

Petzold, U. ; Büchel, A. ; Hardt, Steffen ; Halfmann, T. (2012)
Imaging diffusion in a microfluidic device by third harmonic microscopy.
In: Exp. Fluids, 53
doi: 10.1007/s00348-012-1321-5
Artikel, Bibliographie

Baier, Tobias ; Herbert, Stefan ; Hardt, Steffen (2012)
Leidenfrost solids on structured surfaces.
Proceedings of the 3rd European Conference on Microfluidics. Heidelberg, Germany (03.12.2012-05.12.2012)
Konferenzveröffentlichung, Bibliographie

Pertaya-Braun, N. ; Baier, T. ; Hardt, Steffen (2012)
Microfluidic centrifuge based on a counterflow configuration.
In: Microfluid. Nanofluid., 12
doi: 10.1007/s10404-011-0875-5
Artikel, Bibliographie

Hardt, Steffen ; Hahn, T. (2012)
Microfluidics with aqueous two-phase systems.
In: Lap Chip, 12
doi: 10.1039/c1lc20569b
Artikel, Bibliographie

Schultheis, T. ; Hoheisel, D. ; Xiao, W. ; Spani Molella, L. ; Reithmeier, E. ; Rissing, L. ; Hardt, Steffen (2012)
Performance of an adaptive liquid microlens controlled by a micro coil actuator.
In: Microfluid. Nanofluid., 13
doi: 10.1007/s10404-012-0961-3
Artikel, Bibliographie

Dietzel, M. ; Hardt, Steffen (2012)
Streaming potential of an electrolyte in a microchannel with a lateral temperature gradient.
(03.12.2012-05.12.2012)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Herbert, Stefan ; Kunkelmann, C. ; Mahjoob, S. ; Stephan, Peter (2012)
Unidirectional bubble growth in microchannels with asymmetric surface features.
In: International Journal of Heat and Mass Transfer, 55
doi: 10.1016/j.ijheatmasstransfer.2012.07.018
Artikel, Bibliographie

Schönecker, Clarissa ; Baier, T. ; Hardt, Steffen (2012)
The flow of a fluid in Cassie state along a patterned surface and its effective slip length.
(03.12.2012-05.12.2012)
Konferenzveröffentlichung, Bibliographie

Pertaya-Braun, N. ; Hardt, Steffen (2011)
Microfluidic extractor based on droplet flow in microchannels.
Konferenzveröffentlichung, Bibliographie

Hahn, Thomas ; Hardt, Steffen (2011)
Concentration and Size Separation of DNA Samples at Liquid-Liquid Interfaces.
In: Analytical Chemistry, 83
Artikel, Bibliographie

Abele, Eberhard ; Fischer, Jakob ; Hardt, Steffen ; Selin, Manukyan ; Roisman, Ilia V. (2011)
Oberflächen mit maßgeschneiderter Benetzbarkeit.
In: forschen : Wissensschaftsmagazin der Technischen Universität Darmstadt, (1)
Artikel, Bibliographie

Baier, T. ; Schönfeld, F. ; Hardt, Steffen (2011)
Analytical approximations to the flow field induced by electroosmosis during isotachophoretic transport through a channel.
In: Journal of Fluid Mechanics, 682
doi: 10.1017/jfm.2011.250
Artikel, Bibliographie

Hahn, T. ; Hardt, Steffen (2011)
Concentration and Size Separation of DNA Samples at Liquid–Liquid Interfaces.
In: Analytical Chemistry, 83
doi: 10.1021/ac201228v
Artikel, Bibliographie

Das, S. ; Hardt, Steffen (2011)
Electric-double-layer potential distribution in multiple-layer immiscible electrolytes.
In: Physical Review E, 84 (0225502)
doi: 10.1103/PhysRevE.84.022502
Artikel, Bibliographie

Hahn, T. ; Münchow, G. ; Hardt, Steffen (2011)
Electrophoretic transport of biomolecules across liquid–liquid interfaces.
In: J. Phys.: Condens. Matter, 23 (184107)
doi: 10.1088/0953-8984/23/18/184107
Artikel, Bibliographie

Steffes, Clarissa ; Baier, Tobias ; Hardt, Steffen (2011)
Enabling the enhancement of electroosmotic flow over superhydrophobic surfaces by induced charges.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, 376 (1-3)
doi: 10.1016/j.colsurfa.2010.09.002
Artikel, Bibliographie

Abele, Eberhard ; Fischer, Jakob ; Hardt, Steffen ; Manukyan, S. ; Roisman, Ilia V. (2011)
Komplexe Oberflächen mit maßgeschneiderter Benetzbarkeit.
In: forschen 1/2011
Artikel, Bibliographie

Hardt, Steffen (2011)
Microreactors - Modeling and Simulation.
In: Ullmann’s Encyclopedia of Technical Chemistry
Buchkapitel, Bibliographie

Donkov, A. ; Tiwari, S. ; Liang, T. ; Hardt, Steffen ; Klar, A. ; Ye, W. (2011)
Momentum and mass fluxes in a gas confined between periodically structured surfaces at different temperatures.
In: Physical Review E, 84 (016304)
doi: 10.1103/PhysRevE.84.016304
Artikel, Bibliographie

Hahn, T. ; Hardt, Steffen (2011)
Size dependent detachment of DNA molecules from liquid-liquid interfaces.
In: Soft Matter, 7
doi: 10.1039/C1SM05309D
Artikel, Bibliographie

Hahn, Thomas ; Hardt, Steffen (2011)
Size-dependent detachment of DNA molecules from liquid-liquid interfaces.
In: Soft Matter, 7
Artikel, Bibliographie

Goet, G. ; Baier, T. ; Hardt, Steffen (2011)
Transport and separation of micron sized particles at isotachophoretic transition zones.
In: Biomicrofluidics, 5 (014109)
doi: 10.1063/1.3555194
Artikel, Bibliographie

Dupeux, G. ; Le Merrer, M. ; Lagubeau, G. ; Clanet, C. ; Hardt, Steffen ; Quéré, D. (2011)
Viscous mechanism for Leidenfrost propulsion on a ratchet.
In: Europhys. Lett., 96 (58001)
doi: 10.1209/0295-5075/96/58001
Artikel, Bibliographie

Schilder, Boris ; Man, Simon Yu Ching ; Kasagi, Nobuhide ; Hardt, Steffen ; Stephan, Peter (2010)
Flow Visualization and Local Measurement of Forced Convection Heat Transfer in a Microtube.
In: Journal of Heat Transfer-Transactions of the Asme, 132 (3)
doi: 10.1115/1.4000046
Artikel, Bibliographie

Ganguly, R. ; Hahn, T. ; Hardt, Steffen (2010)
Characterization of magnetic bead-based microfluidic mixing for bio-MEMS applications.
Proc. 20th National & 9th International ISHMT-ASME Heat and Mass Transfer Conference. Mumbai (04.01.2010-06.01.2010)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Goet, G. ; Baier, T. (2010)
Expanding the scope of isotachophoresis in microfluidic operations.
Proc. 2nd European Conference on Microfluidics. Toulouse (08.12.2010-10.12.2010)
Konferenzveröffentlichung, Bibliographie

Löffler, K. ; Yu, H. ; Hardt, Steffen ; Gambaryan-Roisman, Tatiana ; Stephan, Peter (2010)
Heat transfer and evaporation of falling liquid films on surfaces with advanced three-dimensional periodic structures: Experiments and numerical simulations.
Proc. 8th Int. Conf. Nanochannels, Microchannels, Minichannels. Montreal (01.08.2010-05.08.2010)
Konferenzveröffentlichung, Bibliographie

George, S. D. ; Namboodiri, V. S. ; Hardt, Steffen (2010)
Laser induced photoswitching of azobenzene incorporated in PDMS films.
SPIE, Linear and Nonlinear Optics of Organic Materials X. San Diego (01.08.2010-05.08.2010)
Konferenzveröffentlichung, Bibliographie

Ganguly, R. ; Hahn, T. ; Hardt, Steffen (2010)
Magnetophoretic mixing for in-situ immunochemical binding on magnetic beads in a microfluidic channel.
In: Microfluid. Nanofluid., 8
doi: 10.1007/s10404-009-0504-8
Artikel, Bibliographie

Baier, T. ; Steffes, C. ; Hardt, Steffen (2010)
Numerical modeling of thermocapillary flow on superhydrophobic surfaces.
Proc. µTAS2010, 14th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Groningen (03.10.2010-07.10.2010)
Konferenzveröffentlichung, Bibliographie

Namboodiri, V. S. ; George, S. D. ; Hardt, Steffen (2010)
Photodegradation of optically trapped polystyrene beads at 442 nm.
Proc. ICCESSE 2010. Amsterdam (28.09.2010-30.09.2010)
Konferenzveröffentlichung, Bibliographie

Baier, Tobias ; Steffes, Clarissa ; Hardt, Steffen (2010)
Thermocapillary flow on superhydrophobic surfaces.
In: Physical Review E, 82 (037301)
Artikel, Bibliographie

Xiao, W. ; Hardt, Steffen (2010)
An adaptive liquid microlens driven by a ferrofluidic transducer.
In: J. Micromech. Microeng., 20 (055032)
doi: 10.1088/0960-1317/20/5/055032
Artikel, Bibliographie

Xiao, W. ; Hardt, Steffen (2010)
The dynamic behavior of an adaptive liquid microlens driven by a ferrofluidic transducer.
Proc. 8th Int. Conf. Nanochannels, Microchannels, Minichannels. M (01.08.2010-05.08.2010)
Konferenzveröffentlichung, Bibliographie

Schönfeld, Friedhelm ; Goet, Gabriele ; Baier, Tobias ; Hardt, Steffen (2009)
Transition zone dynamics in combined isotachophoretic and electro-osmotic transport.
In: Physics of Fluids, 21 (9)
doi: 10.1063/1.3222866
Artikel, Bibliographie

Kania, T. ; Schilder, B. ; Hardt, Steffen ; Stephan, Peter ; Dreizler, A. (2009)
Akku leer - bald nicht mehr?
In: Forschen - Wissenschaftsmagazin der TU Darmstadt, 42 (2)
Artikel, Bibliographie

Donkov, A. A. ; Hardt, Steffen ; Tiwari, S. ; Klar, A. (2009)
Coupling of Heat and Momentum Transfer Between Nanostructured Surfaces.
doi: 10.1115/MNHMT2009-18061
Konferenzveröffentlichung, Bibliographie

Schönfeld, F. ; Hardt, Steffen (2009)
Dynamic contact angles in CFD simulations.
In: Computers and Fluids, 38
Artikel, Bibliographie

Goet, G. ; Baier, T. ; Hardt, Steffen (2009)
Micro contactor based on isotachophoretic sample transport.
In: Lab Chip, 9
Artikel, Bibliographie

Hardt, Steffen ; Tiwari, S. ; Klar, A. (2009)
Momentum transfer to nanoobjects between isothermal parallel plates.
In: Microfluidics and Nanofluidics, 6 (4)
doi: 10.1007/s10404-008-0327-z
Artikel, Bibliographie

Hahn, T. ; Kurz, A. ; Hardt, Steffen (2009)
Size separation of nucleic acids by electrophoretic transport across fluid boundaries.
Proc. µTAS2009, 13th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Jeju, Korea (01.11.2009-05.11.2009)
Konferenzveröffentlichung, Bibliographie

Stephan, Peter ; Hardt, Steffen ; Kunkelmann, C. ; Schweizer, N. ; Sielaff, Axel (2009)
Wärmeübertragung – vom Frühstücksei zur Chipkühlung.
In: forschen 2/2009
Artikel, Bibliographie

Tiwari, S. ; Klar, A. ; Hardt, Steffen (2009)
A particle-particle hybrid method for kinetic and continuum equations.
In: J. Comput. Phys., 228
Artikel, Bibliographie

Hardt, Steffen ; Wondra, F. (2008)
Evaporation Model for interfacial flows based on a continuum-field representation of the source terms.
In: J. Comput. Phys., 227
Artikel, Bibliographie

Schilder, B. ; Yu, S. C. M. ; Kasagi, N. ; Hardt, Steffen ; Stephan, Peter (2008)
Local Heat Transfer Measurement in a Micro Glass Tube.
Proceedings 6th International Conference on Nanochannels, Microchannels and Minichannels.
Konferenzveröffentlichung, Bibliographie

Schilder, B. ; Yu, S. C. M. ; Kasagi, N. ; Hardt, Steffen ; Stephan, Peter (2008)
Local measurement of forced convection heat transfer in a micro glass tube.
In: ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels
doi: 10.1115/ICNMM2008-62054
Buchkapitel, Bibliographie

Münchow, G. ; Hardt, Steffen ; Schönfeld, F. ; Graf, K. H. (2008)
Protein diffusion across the interface of aqueous two-phase systems.
In: Langmuir, 24
Artikel, Bibliographie

Schönfeld, F. ; Goet, G. ; Drese, K. S. ; Hardt, Steffen (2008)
Single-phase digital microfluidics based on isotachophoretic transport.
Proc. µTAS2008, 12th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. San Diego (12.10.2008-16.10.2008)
Konferenzveröffentlichung, Bibliographie

Schönfeld, F. ; Graf, K. ; Hardt, Steffen ; Butt, Hans-Jürgen (2008)
Time of evaporation of sessile liquid drops in still air with constant contact radius.
In: Int. J. Heat Mass Transfer, 51
Artikel, Bibliographie

Hardt, Steffen ; Schilder, B. ; Tiemann, D. ; Kolb, G. ; Hessel, V. ; Stephan, Peter (2007)
Analysis of flow patterns emerging during evaporation in parallel microchannels.
In: International Journal of Heat and Mass Transfer, 50 (1-2)
Artikel, Bibliographie

Münchow, G. ; Hardt, Steffen ; Kutter, J. P. ; Drese, K. S. (2007)
Continuous separation of proteins and cells by two-phase electrophoresis in microchannels.
Proc. µTAS2007, 11th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Paris (07.10.2007-11.10.2007)
Konferenzveröffentlichung, Bibliographie

Münchow, G. ; Hardt, Steffen ; Kutter, J. P. ; Drese, K. S. (2007)
Electrophoretic partitioning of proteins in two-phase microflow.
In: Lab Chip, 7
Artikel, Bibliographie

Schilder, B. ; Zorbach, I. ; Hardt, Steffen ; Stephan, Peter ; Wondra, F. ; Klotzbücher, T. (2007)
Experimental investigation of fuel evaporation on microstructured surfaces for microcombustion.
Proc. 6th Int. Conf. Enhanced, Compact and Ultra-Compact Heat Exchangers. Potsdam (16.09.2007-21.09.2007)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Schönfeld, F. (2007)
Microfluidic Technologies for Miniaturized Analysis Systems.
Buch, Bibliographie

Hardt, Steffen ; Schönfeld, F. (2007)
Microfluidics: Fundamentals and Engineering Concepts.
In: Microfluidic Technologies for Miniaturized Analysis Systems
Buchkapitel, Bibliographie

Hardt, Steffen (2007)
Modeling and Simulation of Microreactors.
In: Modeling of Process Intensification
Buchkapitel, Bibliographie

Hardt, Steffen ; Baier, T. (2007)
A computational model for heat transfer in multichannel microreactors.
In: AIChE J., 53
Artikel, Bibliographie

Baier, T. ; Hardt, Steffen (2007)
A mean-field model for heat transfer in multichannel microreactors.
In: AIChE J., 53
Artikel, Bibliographie

Hardt, Steffen ; Schilder, B. ; Tiemann, D. ; Kolb, G. ; Hessel, V. ; Stephan, Peter (2006)
Analysis of flow patterns emerging during evaporation in parallel microchannels.
Konferenzveröffentlichung, Bibliographie

Schilder, B. ; Hessel, V. ; Kolb, D. ; Tiemann, D. ; Hardt, Steffen ; Stephan, Peter (2006)
Visualization of evaporation processes in microchannels.
Konferenzveröffentlichung, Bibliographie

Kania, T. ; Dreizler, A. ; Janicka, J. ; Schilder, B. ; Hardt, Steffen ; Stephan, Peter (2006)
Conceptual study of a micro energy converter using thermoelectric materials.
Proc. PowerMEMS2006, 6th Int. Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications. Berkeley (29.11.2006-01.12.2006)
Konferenzveröffentlichung, Bibliographie

Schönfeld, F. ; Hardt, Steffen ; Böhm, M. ; Püschl, R. J. ; Walder, M. ; Wenclawiak, B. (2006)
Electroosmotic flow patterning using microfluidic delay loops.
In: Lab on a chip, 6 (12)
Artikel, Bibliographie

Münchow, G. ; Hardt, Steffen ; Kutter, J. P. ; Drese, K. S. (2006)
Protein transport and concentration by electrophoresis in two-phase microflows.
In: Journal of the Association for Laboratory Automation, 11 (6)
Artikel, Bibliographie

Hardt, Steffen ; Pennemann, H. ; Schönfeld, F. (2006)
Theoretical and experimental characterization of a low-Reynolds number split-and-recombine mixer.
In: Microfluidics and Nanofluidics, 2 (3)
Artikel, Bibliographie

Münchow, G. ; Dadic, D. ; Doffing, F. ; Hardt, Steffen ; Drese, K. S. (2005)
Automated chip-based device for simple and fast nucleic acid amplification.
In: Expert Rev. Mol. Diagn., 5
Artikel, Bibliographie

Hardt, Steffen (2005)
Design paradigms and methodologies for microfluidics.
Proc. of Nanotech2005, 2005 NSTI Nanotechnology Conference and Trade Show. Anaheim, Californien (08.05.2005-12.05.2005)
Konferenzveröffentlichung, Bibliographie

Schönfeld, F. ; Hardt, Steffen (2005)
Flow patterning by phase-shifted electroosmotic flows.
Proc. of µTAS2005, 9th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Boston (09.10.2005-13.10.2005)
Konferenzveröffentlichung, Bibliographie

Schönfeld, F. ; Hardt, Steffen (2005)
Microfluidics and induced-charge electrokinetic flows.
Proc. of µTAS2005, 9th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Boston (09.10.2005-13.10.2005)
Konferenzveröffentlichung, Bibliographie

Pennemann, H. ; Hardt, Steffen ; Hessel, V. ; Löb, P. ; Weise, F. (2005)
Micromixer based liquid/liquid dispersion.
In: Chem. Eng. Technol., 28
Artikel, Bibliographie

Hardt, Steffen ; Drese, K. S. ; Hessel, V. ; Schönfeld, F. (2005)
Passive micro mixers for applications in the micro reactor and µTAS field.
In: Microfluid. Nanofluid., 1
Artikel, Bibliographie

Münchow, G. ; Drese, K. S. ; Hardt, Steffen ; Kutter, J. P. (2005)
Towards two-phase electrophoresis in microchannels.
Proc. of µTAS2005, 9th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Boston (09.10.2005-13.10.2005)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Jiang, F. ; Schönfeld, F. (2005)
A computational analysis of the hydrodynamic instability of a liquid jet focused into a converging microchannel.
In: Int. J. Multiphase Flow, 31
Artikel, Bibliographie

Hardt, Steffen (2005)
An extended VOF method for micro flows with short-range interactions between fluid interfaces.
In: Phys. Fluids, 17
Artikel, Bibliographie

Cominos, V. ; Hardt, Steffen ; Hessel, V. ; Kolb, G. ; Löwe, H. ; Wichert, M. ; Zapf, R. (2005)
A methanol steam micro-reformer for low power fuel cell applications.
In: Chem. Eng. Comm., 192
Artikel, Bibliographie

Hessel, V. ; Hardt, Steffen ; Löwe, H. (2004)
Chemical Micro Process Engineering.
Buch, Bibliographie

Hardt, Steffen ; Baier, T. ; Schönfeld, F. (2004)
Computational models and methods for microfluidics: from flow distributions to mixing.
Proc. of ECCOMAS2004, 4th European Congress on Computational Methods in Applied Sciences and Engineering. Jyväskylä, Finland (24.07.2004-28.07.2004)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Dadic, D. ; Doffing, F. ; Drese, K. S. ; Jiang, F. ; Münchow, G. ; Sörensen, O. (2004)
Development of a slug-flow PCR chip with minimum heating cycle times.
Proc. of Nanotech2004, 2004 NSTI Nanotechnology Conference and Trade Show. Boston, MA (07.03.2004-11.03.2004)
Konferenzveröffentlichung, Bibliographie

Jiang, F. ; Drese, K. S. ; Hardt, Steffen ; Küpper, M. ; Schönfeld, F. (2004)
Helical flows and chaotic mixing in curved microchannels.
In: AIChE J., 50
Artikel, Bibliographie

Griebel, A. ; Rund, S. ; Schönfeld, F. ; Dörner, W. ; Konrad, R. ; Hardt, Steffen (2004)
Integrated polymer chip for two-dimensional capillary gel electrophoresis.
In: Lab Chip, 4
Artikel, Bibliographie

Schönfeld, F. ; Hardt, Steffen ; Hessel, V. ; Hofmann, C. (2004)
Optimiertes distributives Mischen mittels ‘chaotischer’ Multilamination.
In: Chem. Ing. Tech., 76
Artikel, Bibliographie

Schönfeld, F. ; Drese, K. S. ; Hardt, Steffen ; Hessel, V. ; Hofmann, C. (2004)
Optimized distributive µ-mixing by “chaotic” multilamination.
Proc. of Nanotech2004, 2004 NSTI Nanotechnology Conference and Trade Show. Boston, MA (07.03.2004-11.03.2004)
Konferenzveröffentlichung, Bibliographie

Drese, K. S. ; Münchow, G. ; Dadic, D. ; Doffing, F. ; Hardt, Steffen ; Sörensen, O. ; Müller, T. ; Klein-Vehne, A. (2004)
Rapid polymerase chain reaction in polymeric microchips driven by ferrofluids.
Proc. of µTAS2004, 8th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Malmö, Sweden (26.09.2004-30.09.2004)
Konferenzveröffentlichung, Bibliographie

Schönfeld, F. ; Hardt, Steffen (2004)
Simulation of helical flows in microchannels.
In: AIChE J., 50
Artikel, Bibliographie

Löb, P. ; Drese, K. S. ; Hessel, V. ; Hardt, Steffen ; Hofmann, C. ; Löwe, H. ; Schenk, R. ; Schönfeld, F. ; Werner, B. (2004)
Steering of liquid mixing speed in interdigital micro mixers – from very fast to deliberately slow mixing.
In: Chem. Eng. Technol., 27
Artikel, Bibliographie

Stephan, Peter ; Hardt, Steffen (2004)
Wärme- und Stofftransport in mikrofluidischen Mehrphasensystemen: Forschungsaktivitäten an der TU Darmstadt.
In: Chemie Ingenieur Technik, 76 (5)
Artikel, Bibliographie

Hardt, Steffen ; Pennemann, H. ; Jiang, F. (2003)
CFD-based optimization of gas/liquid microreactors with droplet and bubble transport.
Proc. of Nanotech2003, 2003 NSTI Nanotechnology Conference and Trade Show. San Francisco, CA (23.02.2003-27.02.2003)
Konferenzveröffentlichung, Bibliographie

Hessel, V. ; Hardt, Steffen ; Löwe, H. (2003)
Chemical processing with microdevices – device/plant concepts, selected applications and state of scientific/commercial implementation.
Proc. of ICheaP-6, 6th Italian Conference on Chemical and Process Engineering. Pisa, Italy (08.06.2003-11.06.2003)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Drese, K. S. ; Griebel, A. ; Rund, S. ; Schönfeld, F. (2003)
Lab-on-a-Chip-Systeme für die medizinische Diagnostik.
Proc. of 1st EFDS-Workshop “Funktionalisierung von Oberflächen für die Biotechnologie”. Dresden, Germany (11.03.2003-11.03.2003)
Konferenzveröffentlichung, Bibliographie

Hessel, V. ; Hardt, Steffen ; Schönfeld, F. ; Löwe, H. (2003)
Laminar mixing in interdigital micromixers with different mixing chambers – Part 1: Experimental characterization.
In: AIChE J., 49
Artikel, Bibliographie

Hardt, Steffen ; Schönfeld, F. (2003)
Laminar mixing in interdigital micromixers with different mixing chambers – Part 2: Numerical simulations.
In: AIChE J., 49
Artikel, Bibliographie

Sörensen, O. ; Drese, K. S. ; Hardt, Steffen (2003)
Liquid slug transport, mixing and synchronization driven by ferrofluids.
Proc. of µTAS2003, 7th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences. Squaw Valley, CA (05.10.2003-09.10.2003)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen (2003)
Modeling hydrodynamic focusing of liquid jets in microchannels.
Proc. of the 2nd M.I.T. Conference on Computational Fluid and Solid Mechanics. Cambridge, MA (17.06.2003-20.06.2003)
Konferenzveröffentlichung, Bibliographie

Goet, G. ; Hardt, Steffen (2003)
Pumpen kleinster Flüssigkeitsmengen mit Hilfe von elektrischen Feldern.
In: Inno 25
Artikel, Bibliographie

Hardt, Steffen ; Ehrfeld, W. ; Hessel, V. ; Vanden Bussche, K. M. (2003)
Strategies for size reduction of microreactors by heat transfer enhancement effects.
In: Chem. Eng. Comm., 190
Artikel, Bibliographie

Pumera, M. ; Wang, J. ; Opekar, F. ; Jelinek, I. ; Feldman, J. ; Löwe, H. ; Hardt, Steffen (2002)
Contactless conductivity detector for microchip capillary electrophoresis.
In: Anal. Chem., 74
Artikel, Bibliographie

Hessel, V. ; Dietrich, T. ; Freitag, A. ; Hardt, Steffen ; Hofmann, C. ; Löwe, H. ; Pennemann, H. ; Ziogas, A. (2002)
Fast mixing in interdigital micromixers achieved by means of extreme focussing.
Proc. of IMRET6, 6th Int. Conf. Microreaction Technology. New Orleans, LA (10.03.2002-14.03.2002)
Konferenzveröffentlichung, Bibliographie

Pumera, M. ; Wang, J. ; Löwe, H. ; Hardt, Steffen (2002)
Poly(methylmethacrylate) microchip electrophoresis device with thick-film amperometric detector: towards fully disposable Lab-on-a-Chip.
In: JALA, 7
Artikel, Bibliographie

Hardt, Steffen ; Dietrich, T. ; Freitag, A. ; Hessel, V. ; Löwe, H. ; Hofmann, C. ; Orosar, A. ; Schönfeld, F. ; Vanden Bussche, K. M. (2002)
Radial and tangential injection of liquid/liquid and gas/liquid streams and focussing thereof in a special cyclone micromixer.
Proc. of IMRET6, 6th Int. Conf. Microreaction Technology. New Orleans, LA (10.03.2002-14.03.2002)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Doffing, F. ; Pennemann, H. (2002)
Simulation of hydrodynamic dispersion in gas/liquid microreactors.
Proc. of MSM2002, 5th Int. Conf. Modeling and Simulation of Microsystems. San Juan, Puerto Rico (22.04.2002-25.04.2002)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen ; Schönfeld, F. (2002)
Simulation of hydrodynamics in multi-phase microreactors.
Proc. of WCCM V, 5th World Congress on Computational Mechanics. Vienna, Austria (07.07.2002-12.07.2002)
Konferenzveröffentlichung, Bibliographie

Hardt, Steffen (2002)
Simulation von Mikrosystemen.
In: Handbuch Mikrotechnik
Buchkapitel, Bibliographie