2024

Blohm, Annika ; Domes, Christian ; Merian, Andreas ; Wolf, Sebastian ; Popp, Jürgen ; Frosch, Torsten (2024)
Comprehensive multi-gas study by means of fiber-enhanced Raman spectroscopy for the investigation of nitrogen cycle processes.
In: Analyst, 149 (6)
doi: 10.1039/d4an00023d
Artikel, Bibliographie

2023

Wolf, Sebastian ; Popp, Jürgen ; Frosch, Torsten (2023)
Multifocal hyperspectral Raman imaging setup for multi-well plates.
In: Sensors and Actuators B: Chemical, 375
doi: 10.1016/j.snb.2022.132949
Artikel, Bibliographie

2022

Blohm, Annika ; Kumar, Swatantar ; Knebl, Andreas ; Herrmann, Martina ; Küsel, Kirsten ; Popp, Jürgen ; Frosch, Torsten (2022)
Activity and electron donor preference of two denitrifying bacterial strains identified by Raman gas spectroscopy.
In: Analytical and Bioanalytical Chemistry, 414 (1)
doi: 10.1007/s00216-021-03541-y
Artikel, Bibliographie

Cialla-May, Dana ; Krafft, Christoph ; Rösch, Petra ; Deckert-Gaudig, Tanja ; Frosch, Torsten ; Jahn, Izabella J. ; Pahlow, Susanne ; Stiebing, Clara ; Meyer-Zedler, Tobias ; Bocklitz, Thomas ; Schie, Iwan ; Deckert, Volker ; Popp, Jürgen (2022)
Raman Spectroscopy and Imaging in Bioanalytics.
In: Analytical Chemistry, 94 (1)
doi: 10.1021/acs.analchem.1c03235
Artikel, Bibliographie

2020

Blohm, Annika ; Sieburg, Anne ; Popp, Jürgen ; Frosch, Torsten (2020)
Detection of gas molecules by means of spectrometric and spectroscopic methods.
In: Advanced Nanostructures for Environmental Health
doi: 10.1016/B978-0-12-815882-1.00006-9
Buchkapitel, Bibliographie

2019

Azkune, Mikel ; Frosch, Timea ; Arrospide, Eneko ; Aldabaldetreku, Gotzon ; Bikandi, Inaki ; Zubia, Joseba ; Popp, Jürgen ; Frosch, Torsten (2019)
Liquid-Core Microstructured Polymer Optical Fiber as Fiber-Enhanced Raman Spectroscopy Probe for Glucose Sensing.
In: Journal of Lightwave Technology, 37 (13)
doi: 10.1109/JLT.2019.2908447
Artikel, Bibliographie

2018

Yan, Di ; Popp, Jürgen ; Pletz, Mathias W. ; Frosch, Torsten (2018)
Fiber enhanced Raman sensing of levofloxacin by PCF bandgap-shifting into the visible range.
In: Analytical Methods, 10 (6)
doi: 10.1039/c7ay02398g
Artikel, Bibliographie

Yan, Di ; Frosch, Timea ; Kobelke, Jens ; Bierlich, Jörg ; Popp, Jürgen ; Pletz, Mathias W. ; Frosch, Torsten (2018)
Fiber-Enhanced Raman Sensing of Cefuroxime in Human Urine.
In: Analytical Chemistry, 90 (22)
doi: 10.1021/acs.analchem.8b01355
Artikel, Bibliographie

Knebl, Andreas ; Yan, Di ; Popp, Jürgen ; Frosch, Torsten (2018)
Fiber enhanced Raman gas spectroscopy.
In: TrAC - Trends in Analytical Chemistry, 103
doi: 10.1016/j.trac.2017.12.001
Artikel, Bibliographie

Sieburg, Anne ; Schneider, Sebastian ; Yan, Di ; Popp, Jürgen ; Frosch, Torsten (2018)
Monitoring of gas composition in a laboratory biogas plant using cavity enhanced Raman spectroscopy.
In: Analyst, 143 (6)
doi: 10.1039/c7an01689a
Artikel, Bibliographie

2017

Knebl, Andreas ; Popp, Jürgen ; Frosch, Torsten (2017)
Raman gas spectroscopy.
In: Handbook of Optoelectronics: Applied Optical Electronics - Vol.3, Auflage: Second Edition
doi: 10.1201/b22316
Buchkapitel, Bibliographie

Domes, Robert ; Domes, Christian ; Albert, Christian R. ; Bringmann, Gerhard ; Popp, Jürgen ; Frosch, Torsten (2017)
Vibrational spectroscopic characterization of arylisoquinolines by means of Raman spectroscopy and density functional theory calculations.
In: Physical Chemistry Chemical Physics, 19 (44)
doi: 10.1039/c7cp05415g
Artikel, Bibliographie

Yan, Di ; Popp, Jürgen ; Frosch, Torsten (2017)
Analysis of Fiber-Enhanced Raman Gas Sensing Based on Raman Chemical Imaging.
In: Analytical Chemistry, 89 (22)
doi: 10.1021/acs.analchem.7b03209
Artikel, Bibliographie

Sieburg, Anne ; Jochum, Tobias ; Trumbore, Susan E. ; Popp, Jürgen ; Frosch, Torsten (2017)
Onsite cavity enhanced Raman spectrometry for the investigation of gas exchange processes in the Earth's critical zone.
In: Analyst, 142 (18)
doi: 10.1039/c7an01149k
Artikel, Bibliographie

Domes, Christian ; Domes, Robert ; Popp, Jürgen ; Pletz, Mathias W. ; Frosch, Torsten (2017)
Ultrasensitive Detection of Antiseptic Antibiotics in Aqueous Media and Human Urine Using Deep UV Resonance Raman Spectroscopy.
In: Analytical Chemistry, 89 (18)
doi: 10.1021/acs.analchem.7b02422
Artikel, Bibliographie

Jochum, Tobias ; Fastnacht, Agnes ; Trumbore, Susan E. ; Popp, Jürgen ; Frosch, Torsten (2017)
Direct Raman Spectroscopic Measurements of Biological Nitrogen Fixation under Natural Conditions: An Analytical Approach for Studying Nitrogenase Activity.
In: Analytical Chemistry, 89 (2)
doi: 10.1021/acs.analchem.6b03101
Artikel, Bibliographie

Yan, Di ; Popp, Jürgen ; Pletz, Mathias W. ; Frosch, Torsten (2017)
Highly Sensitive Broadband Raman Sensing of Antibiotics in Step-Index Hollow-Core Photonic Crystal Fibers.
In: ACS Photonics, 4 (1)
doi: 10.1021/acsphotonics.6b00688
Artikel, Bibliographie

2016

Yan, Di ; Domes, Christian ; Domes, Robert ; Frosch, Timea ; Popp, Jürgen ; Pletz, Mathias W. ; Frosch, Torsten (2016)
Fiber enhanced Raman spectroscopic analysis as a novel method for diagnosis and monitoring of diseases related to hyperbilirubinemia and hyperbiliverdinemia.
In: Analyst, 141 (21)
doi: 10.1039/c6an01670g
Artikel, Bibliographie

Jochum, Tobias ; Rahal, Leila ; Suckert, Renè J. ; Popp, Jürgen ; Frosch, Torsten (2016)
All-in-one: a versatile gas sensor based on fiber enhanced Raman spectroscopy for monitoring postharvest fruit conservation and ripening.
In: Analyst, 141 (6)
doi: 10.1039/c5an02120k
Artikel, Bibliographie

2015

Jochum, Tobias ; Fischer, Joseph C. von ; Trumbore, Susan ; Popp, Jürgen ; Frosch, Torsten (2015)
Multigas Leakage Correction in Static Environmental Chambers Using Sulfur Hexafluoride and Raman Spectroscopy.
In: Analytical Chemistry, 87 (21)
doi: 10.1021/acs.analchem.5b03312
Artikel, Bibliographie

Brückner, Michael ; Becker, Katja ; Popp, Jürgen ; Frosch, Torsten (2015)
Fiber array based hyperspectral Raman imaging for chemical selective analysis of malaria-infected red blood cells.
In: Analytica Chimica Acta, 894
doi: 10.1016/j.aca.2015.08.025
Artikel, Bibliographie

Fischer, Sarah ; Hanf, Stefan ; Frosch, Torsten ; Gleixner, Gerd ; Popp, Jürgen ; Trumbore, Susan ; Hartmann, Henrik (2015)
Pinus sylvestris switches respiration substrates under shading but not during drought.
In: New Phytologist, 207 (3)
doi: 10.1111/nph.13452
Artikel, Bibliographie

Hartung, Alexander ; Kobelke, Jens ; Schwuchow, Anka ; Bierlich, Jörg ; Popp, Jürgen ; Schmidt, Markus A. ; Frosch, Torsten (2015)
Low-loss single-mode guidance in large-core antiresonant hollow-core fibers.
In: Optics Letters, 40 (14)
doi: 10.1364/OL.40.003432
Artikel, Bibliographie

Hanf, Stefan ; Fischer, Sarah ; Hartmann, Henrik ; Keiner, Robert ; Trumbore, Susan ; Popp, Jürgen ; Frosch, Torsten (2015)
Online investigation of respiratory quotients in Pinus sylvestris and Picea abies during drought and shading by means of cavity-enhanced Raman multi-gas spectrometry.
In: Analyst, 140 (13)
doi: 10.1039/c5an00402k
Artikel, Bibliographie

Keiner, Robert ; Herrmann, Martina ; Küsel, Kirsten ; Popp, Jürgen ; Frosch, Torsten (2015)
Rapid monitoring of intermediate states and mass balance of nitrogen during denitrification by means of cavity enhanced Raman multi-gas sensing.
In: Analytica Chimica Acta, 864
doi: 10.1016/j.aca.2015.02.007
Artikel, Bibliographie

Jochum, Tobias ; Michalzik, Beate ; Bachmann, Anne ; Popp, Jürgen ; Frosch, Torsten (2015)
Microbial respiration and natural attenuation of benzene contaminated soils investigated by cavity enhanced Raman multi-gas spectroscopy.
In: Analyst, 140 (9)
doi: 10.1039/c5an00091b
Artikel, Bibliographie

Bögözi, Timea ; Popp, Jürgen ; Frosch, Torsten (2015)
Fiber-enhanced Raman multi-gas spectroscopy: what is the potential of its application to breath analysis?
In: Bioanalysis, 7 (3)
doi: 10.4155/bio.14.299
Artikel, Bibliographie

Hartung, Alexander ; Kobelke, Jens ; Schwuchow, Anka ; Wondraczek, Katrin ; Bierlich, Jörg ; Popp, Jürgen ; Frosch, Torsten ; Schmidt, Markus A. (2015)
Origins of modal loss of antiresonant hollow-core optical fibers in the ultraviolet.
In: Optics Express, 23 (3)
doi: 10.1364/OE.23.002557
Artikel, Bibliographie

Hanf, Stefan ; Bögözi, Timea ; Keiner, Robert ; Frosch, Torsten ; Popp, Jürgen (2015)
Fast and Highly Sensitive Fiber-Enhanced Raman Spectroscopic Monitoring of Molecular H2 and CH4 for Point-of-Care Diagnosis of Malabsorption Disorders in Exhaled Human Breath.
In: Analytical Chemistry, 87 (2)
doi: 10.1021/ac503450y
Artikel, Bibliographie

Keiner, Robert ; Gruselle, Marie-Cécile ; Michalzik, Beate ; Popp, Jürgen ; Frosch, Torsten (2015)
Raman spectroscopic investigation of 13CO2 labeling and leaf dark respiration of Fagus sylvatica L. (European beech).
In: Analytical and Bioanalytical Chemistry, 407 (7)
doi: 10.1007/s00216-014-8446-8
Artikel, Bibliographie

2014

Sivakov, Vladimir ; Kaniukov, Egor Yu. ; Petrov, Alexander V. ; Korolik, Olga V. ; Mazanik, Alexander V. ; Bochmann, Arne ; Teichert, Steffen ; Hidi, Izabella J. ; Schleusener, Alexander ; Cialla, Dana ; Toimil-Molares, Maria Eugenia ; Trautmann, Christina ; Popp, Jürgen ; Demyanov, Sergey E. (2014)
Silver nanostructures formation in porous Si/SiO2 matrix.
In: Journal of Crystal Growth, 400
doi: 10.1016/j.jcrysgro.2014.04.024
Artikel, Bibliographie

Hartung, Alexander ; Kobelke, Jens ; Schwuchow, Anka ; Wondraczek, Katrin ; Bierlich, Jörg ; Popp, Jürgen ; Frosch, Torsten ; Schmidt, Markus A. (2014)
Double antiresonant hollow core fiber - guidance in the deep ultraviolet by modified tunneling leaky modes.
In: Optics Express, 22 (16)
doi: 10.1364/OE.22.019131
Artikel, Bibliographie

Hanf, Stefan ; Keiner, Robert ; Yan, Di ; Popp, Jürgen ; Frosch, Torsten (2014)
Fiber-Enhanced Raman Multigas Spectroscopy: A Versatile Tool for Environmental Gas Sensing and Breath Analysis.
In: Analytical Chemistry, 86 (11)
doi: 10.1021/ac404162w
Artikel, Bibliographie

Keiner, Robert ; Frosch, Torsten ; Massad, Tara ; Trumbore, Susan ; Popp, Jürgen (2014)
Enhanced Raman multigas sensing - a novel tool for control and analysis of 13CO2 labeling experiments in environmental research.
In: Analyst, 139 (16)
doi: 10.1039/c3an01971c
Artikel, Bibliographie

2013

Keiner, Robert ; Frosch, Torsten ; Hanf, Stefan ; Rusznyak, Anna ; Akob, Denise M. ; Küsel, Kirsten ; Popp, Jürgen (2013)
Raman Spectroscopy - An Innovative and Versatile Tool To Follow the Respirational Activity and Carbonate Biomineralization of Important Cave Bacteria.
In: Analytical Chemistry, 85 (18)
doi: 10.1021/ac401699d
Artikel, Bibliographie

Frosch, Torsten ; Yan, Di ; Popp, Jürgen (2013)
Ultrasensitive Fiber Enhanced UV Resonance Raman Sensing of Drugs.
In: Analytical Chemistry, 85 (13)
doi: 10.1021/ac400365f
Artikel, Bibliographie

Frosch, Torsten ; Keiner, Robert ; Michalzik, Beate ; Fischer, Bernhard ; Popp, Jürgen (2013)
Investigation of Gas Exchange Processes in Peat Bog Ecosystems by Means of Innovative Raman Gas Spectroscopy.
In: Analytical Chemistry, 85 (3)
doi: 10.1021/ac3034163
Artikel, Bibliographie

2012

Rusznyák, Anna ; Akob, Denise M. ; Nietzsche, Sándor ; Eusterhues, Karin ; Totsche, Kai Uwe ; Neu, Thomas R. ; Frosch, Torsten ; Popp, Jürgen ; Keiner, Robert ; Geletneky, Jörn ; Katzschmann, Lutz ; Schulze, Ernst-Detlef ; Küsel, Kirsten (2012)
Calcite Biomineralization by Bacterial Isolates from the Recently Discovered Pristine Karstic Herrenberg Cave.
In: Applied and Environmental Microbiology, 78 (4)
doi: 10.1128/AEM.06568-11
Artikel, Bibliographie

2009

Frosch, Torsten ; Popp, Jürgen (2009)
Relationship between molecular structure and Raman spectra of quinolines.
In: Journal of Molecular Structure, 924-926
doi: 10.1016/j.molstruc.2008.12.019
Artikel, Bibliographie

Frosch, Torsten ; Koncarevic, Sasa ; Becker, Katja ; Popp, Jürgen (2009)
Morphology-sensitive Raman modes of the malaria pigment hemozoin.
In: Analyst, 134 (6)
doi: 10.1039/b821705j
Artikel, Bibliographie

2007

Tarcea, Nicolae ; Harz, Michaela ; Rösch, Petra ; Frosch, Torsten ; Schmitt, Michael ; Thiele, Hans ; Hochleitner, R. ; Popp, Jürgen (2007)
UV Raman spectroscopy - A technique for biological and mineralogical in situ planetary studies.
In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 68 (4)
doi: 10.1016/j.saa.2007.06.051
Artikel, Bibliographie

Frosch, Torsten ; Koncarevic, Sasa ; Zedler, Linda ; Schmitt, Michael ; Schenzel, Karla ; Becker, Katja ; Popp, Jürgen (2007)
In Situ Localization and Structural Analysis of the Malaria Pigment Hemozoin.
In: The Journal of Physical Chemistry B, 111 (37)
doi: 10.1021/jp071788b
Artikel, Bibliographie

Puskar, Ljiljana ; Tuckermann, Rudolf ; Frosch, Torsten ; Popp, Jürgen ; Ly, Vanalysa ; McNaughton, Don ; Wood, Bayden R. (2007)
Raman acoustic levitation spectroscopy of red blood cells and Plasmodium falciparum trophozoites.
In: Lab on a Chip, 7 (9)
doi: 10.1039/b706997a
Artikel, Bibliographie

Frosch, Torsten ; Meyer, Tobias ; Schmitt, Michael ; Popp, Jürgen (2007)
Device for Raman Difference Spectroscopy.
In: Analytical Chemistry, 79 (16)
doi: 10.1021/ac070440+
Artikel, Bibliographie

Frosch, Torsten ; Schmitt, Michael ; Popp, Jürgen (2007)
In situ UV Resonance Raman Micro-spectroscopic Localization of the Antimalarial Quinine in Cinchona Bark.
In: The Journal of Physical Chemistry B, 111 (16)
doi: 10.1021/jp066999f
Artikel, Bibliographie

Frosch, Torsten ; Schmitt, Michael ; Popp, Jürgen (2007)
Raman spectroscopic investigation of the antimalarial agent mefloquine.
In: Analytical and Bioanalytical Chemistry, 387 (5)
doi: 10.1007/s00216-006-0754-1
Artikel, Bibliographie

Frosch, Torsten ; Schmitt, Michael ; Bringmann, Gerhard ; Kiefer, Wolfgang ; Popp, Jürgen (2007)
Structural Analysis of the Anti-Malaria Active Agent Chloroquine under Physiological Conditions.
In: The Journal of Physical Chemistry B, 111 (7)
doi: 10.1021/jp065136j
Artikel, Bibliographie

Frosch, Torsten ; Tarcea, Nicolae ; Schmitt, Michael ; Thiele, Hans ; Langenhorst, Falko ; Popp, Jürgen (2007)
UV Raman Imaging - A Promising Tool for Astrobiology: Comparative Raman Studies with Different Excitation Wavelengths on SNC Martian Meteorites.
In: Analytical Chemistry, 79 (3)
doi: 10.1021/ac0618977
Artikel, Bibliographie

Frosch, Torsten ; Schmitt, Michael ; Noll, Torsten ; Bringmann, Gerhard ; Schenzel, Karla ; Popp, Jürgen (2007)
Ultrasensitive in situ Tracing of the Alkaloid Dioncophylline A in the Tropical Liana Triphyophyllum peltatum by Applying Deep-UV Resonance Raman Microscopy.
In: Analytical Chemistry, 79 (3)
doi: 10.1021/ac061526q
Artikel, Bibliographie

2006

Frosch, Torsten ; Schmitt, Michael ; Schenzel, Karla ; Faber, Johan H. ; Bringmann, Gerhard ; Kiefer, Wolfgang ; Popp, Jürgen (2006)
In vivo localization and identification of the antiplasmodial alkaloid dioncophylline A in the tropical lianaTriphyophyllum peltatum by a combination of fluorescence, near infrared Fourier transform Raman microscopy, and density functional theory calculations.
In: Biopolymers, 82 (4)
doi: 10.1002/bip.20459
Artikel, Bibliographie