R. W. Kessler, E. Ostertag, K. Rebner
Markerfreie Karyotypisierung von Chromosomen durch spektrales Imaging, Biospektrum 2017, 23 (03.17), 282 – 285

E. Ostertag, M. Stefanakis, K. Rebner and R. W. Kessler,
Elastic and inelastic light scattering spectroscopy and its possible use for label-free brain tumor typing
Anal Bioanal Chem. 2017 Nov; 409 (28):6613-6623. doi: 10.1007/s00216-017-0614-1.

Rudolf W. Kessler, Waltraud Kessler and Edith Zikulnig-Rusch
A Critical Summary of Spectroscopic Techniques and their Robustness in Industrial PAT Applications
Chem. Ing. Tech. 2016, 88, No. 6, 710–721

Karsten Rebner, Edwin Ostertag, Rudolf W. Kessler
Hyperspectral backscatter imaging: a label-free approach to cytogenetics
Anal Bioanal Chem (2016) 408:5701–5709 DOI 10.1007/s00216-016-9670-1

E. Ostertag, A. Lorenz, K. Rebner, R. W. Kessler, A. J. Meixner,
Extension of solid immersion lens technology to super-resolution Raman microscopy, Nanospectroscopy 2014; 1: 1–11,

Rudolf W. Kessler and W. Kessler
Spectral Imaging in Quality and Process Control
Handbook of Spectroscopy, Ed. G. Gauglitz and D.S. Moore , 2nd Ed. 2014 Wiley VCH, Weinheim, Germany, Volume 3: 1409 – 1418,

R. W. Kessler,
Perspectives in process analysis. J. Chemometrics, 2013, 27: 369–378. doi: 10.1002/cem.2549

D. Oelkrug, E. Ostertag, R. W. Kessler,
Quantitative Raman spectroscopy in turbid matter: reflection or transmission mode?,
Anal. Bioanal. Chem., 2013, 405:3367–3379,

D. Oelkrug, M. Brun, P. Hubner, K. Rebner, B. Boldrini, R. Kessler,
Penetration of Light into Multiple Scattering Media: Model Calculations and Reflectance Experiments. Part II: The Radial Transfer, Appl. Spectrosc. 2013. 67(4): 385-395

D. Oelkrug, M. Brun, K. Rebner, B. Boldrini, R. Kessler.
Penetration of Light into Multiple Scattering Media: Model Calculations and Reflectance Experiments. Part I: The Axial Transfer
Appl. Spectrosc. 2012. 66(8): 934-943.

R. Kessler, K. Rebner, W. Kessler,
Multi-Modal-Spectroscopy and Multivariate Data Analysis as a Tool for Non-Invasive Process Analysis, Proceedings of the 11. Dresdner Sensor-Symposium, 2013-12-09 – 2013-12-11, Dreikönigskirche – Haus der Kirche Dresden, Chapter: Neuartige Sensor-Systeme, Pages 102 – 107, DOI10.5162/11dss2013/6.1, ISBN: 978-3-9813484-5-3

S. Luckow-Markward, E. Ostertag, B. Boldrini, W. Kessler and R. W. Kessler,
Spectral imaging in process analytics using chemometrics and first principles, in: Optical Characterization of Materials, Conference Proceedings OCM 2013, edited by J. Beyerer, F. Puente León, T. Längle, KIT Scientific Publishing 2013, ISBN 978-3-86644-956-7, pages 1 – 13

E. Ostertag, D. Oelkrug and R. W. Kessler,
Reflection and transmission Raman spectroscopy for the chemical
characterization of solid materials, in: Optical Characterization of Materials, Conference Proceedings OCM 2013, edited by J. Beyerer, F. Puente León, T. Längle, KIT Scientific Publishing 2013, ISBN 978-3-86644-956-7, pages 65 – 75

Ostertag, E., Merz, T.R. and Kessler, R.W.
Imaging beyond the diffraction limit – Prospects for NIR,
in: Proceedings of the 15th International Conference on Near Infrared Spectroscopy, Edited by M. Manley, C.M. McGoverin, D.B. Thomas and G. Downey, Cape Town, South Africa, pp. 41-46. Herausgegeben 2013

A. Bogomolov, S. Dietrich, B. Boldrini and R. W. Kessler
Quantitative determination of fat and total protein in milk based on visible light scatter,
Food Chemistry 134 (2012) 412–418

P. Weber, M. Wagner, P. Kioschis, W. Kessler and H. Schneckenburger
Tumor cell differentiation by label-free fluorescence microscopy
Journal of Biomedical Optics 17(10), 101508-1 – 101508-5 (October 2012)

B. Boldrini, W. Kessler, K. Rebner and R. W. Kessler
Hyperspectral imaging: a review of best practice, performance and pitfalls for inline and online applications
Journal of Near Infrared Spectroscopy 2012, 20, 438–508, doi: 10.1255/jnirs.1003

E. Ostertag, B. Boldrini, S. Luckow and R. W. Kessler
Label-free multimodal micro-spectroscopic differentiation of glioblastoma
tumor model cell lines combined with multivariate data analysis
Proc. of SPIE Vol. 8427 84271U-1 – 10, Biophotonics: Photonic Solutions for Better Health Care III, edited by Jürgen Popp, Wolfgang Drexler, Valery V. Tuchin, Dennis L. Matthews, © 2012 SPIE · CCC code: 1605-7422/12/$18 · doi: 10.1117/12.922602

S. Luckow, K. Rebner, D. Oelkrug, R. W. Kessler,
Hyperspectral Stray Light Imaging of Chromosomes: A Novel Concept for Label-Free Karyotyping, Proc. of SPIE BIOS Photonics West 2012, Volume 8230: Biomedical Applications of Light Scattering VI, edited by Adam P. Wax, Vadim Backman, 82300G, pages G1 -12, doi: 10.1117/12.908953

E. Ostertag, T. Merz, R. W. Kessler,
Multimodal Spatially Resolved Near-Field Scattering and Absorption Spectroscopy,
Proc. of SPIE Vol. 8231, 82310A , A1 –A10 doi: 10.1117/12.909086BIOS SPIE Photonics West 2012, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VIII, edited by Alexander N. Cartwright, Dan V. Nicolau,

E. Ostertag und R.W. Kessler,
Hyperspectral imaging for process analytical technology
Chemistry Today, 29, 46 – 49, 2011

K. Rebner, W. Kessler and R. W. Kessler,
Science based spectral imaging: combining first principles with new technologies
Near Infrared Spectroscopy: Proceedings of the 14th International Conference, 7.-16.11 2009, Bagkok, Thailand, Edited by Sirinnapa Saranwong, Sumaporn Kasemsumran, Warunee Thanapase and Phil Williams, Published by IMPublications, Chichester, UK (2010), pages 919 – 927, 2010, ISBN 978-1-906715-03-8

K. Rebner, M. Schmitz, B. Boldrini, A. Kienle, D. Oelkrug und R. W. Kessler,
Dark-field scattering microscopy for spectral characterization of polystyrene aggregates
OPTICS EXPRESS 18 (3) 3116 – 3127, 2010

W. Kessler und R. W. Kessler,
Multivariate Curve Resolution – Integration von Wissen in Chemometrische Modelle
Chemie Ingenieur Technik 82, 441 – 451, 2010

W. Kessler, D. Oelkrug and R.W. Kessler,
Using scattering and absorption spectra as MCR-hard model constraints for diffuse reflectance measurements of tablets
Analytica Chimica Acta, 642, 127 – 134, 2009

Kandelbauer A.; Kessler W.; Kessler R.W.
Online UV-visible spectroscopy and multivariate curve resolution as powerful tool for
model-free investigation of laccase-catalysed oxidation
Analytical and Bioanalytical Chemistry, 390, 1303 – 1315, 2008

W. Kessler und R.W. Kessler
Multivariate Curve Resolution: a method of evaluating the kinetics of biotechnological reactions
Analytical and Bioanalytical Chemistry 384, 1087 – 1095, 2006

Merz T., R.W. Kessler,
Spectroscopic Imaging in the Near Field with an Apertureless Solid Immersion Lens Microscope,
in: novel Optical Instrumentation for Biomedical Applications III, München 17. – 19.6.2007, ed. C.D. Depeursinge, Proc. Of SPIE-OSA Biomedical Optics, SPIE Vol. 66310V, V1 – V10, ibid: Progress in Biomedical Optics and Imaging, 8 (44), 20007, SPIE Vol. 6631, V1 – V10, ISSN 1605-7422,

Rebner K., Merz T., Kessler R. W.,
Hyperspectral imaging – a novel concept for marker free chromosome characterization,
In: E. Aretz, B. Hermanns-Sachweh, J. Mayer (Eds.) EMC 2008, Proceedings of the 14th European Microscopy Conference, 1 – 5 September 2008 in Aachen, Germany, Volume 3: Life Science, 281–282, 2008, Springer Verlag Berlin, Heidelberg, ISBN 978-3-540-85227-8

Merz T., Kessler R. W,
Determination of the lateral Resolution of a Cantilever based Solid
Immersion Lens Near Field Microscope
In: E. Aretz, B. Hermanns-Sachweh, J. Mayer (Eds.) EMC 2008, Proceedings of the 14th European Microscopy Conference, 1 – 5 September 2008 in Aachen, Germany, Vol. 1: Instrumentation and Methods, 2008, 725–726, Springer Verlag Berlin, Heidelberg, ISBN 978-3-540-85227-8

Reijmers T. H., Maliepaard C.,. v.d Broeck H., Kessler R.W.,.Toonen M.A,
v.d. Voet H,
Integrated Statistical Analysis of cDNA Microarray and NIR Spectroscopic Data,
Journal of Bioinformatics and Computational Biology, 3, 891-913

E. Dolezel-Horwath, T. Hutter, R.W. Kessler, R. Wimmer,
Feed Back & Feed Forward Control of Wet-processed Hardboard Production using Spectroscopy and Chemometric Modelling,
Analytica Chimica Acta, 544, 47 – 59, 2005

Kessler R.W., Oelkrug D., Wilkinson F.,
Detection of Transient Spectra within Polycrystalline Samples Using the New Technique of Diffuse Reflectance Flash Photolysis
Applied Spectroscopy, 36, 673, 1982,

Uhl S., Honnen W., Kessler R.W., Oelkrug D.,
Fluorescence Decay of Aromatic Hydrocarbons on a Gamma-Alumina Surface
J. of Luminescence, 24/25, 551-554, 1981

Kessler R.W., Wilkinson F.,
Diffuse Reflectance Triplet-Triplet Absorption Spectroscopy of Aromatic Hydrocarbons Chemisorbed on Gamma-Alumina
J. Chem. Soc. Faraday Transactions I, 77, 309-320, 1981,

Oelkrug D., Plauschinat M., Kessler R.W.,
Radiative and Non-Radiative Transitions in Aromatic Molecules chemisorbed on Gamma-Alumina
J. of Luminescence 18/19, 434-438,1979