2004
Peter
Koch,
Gereon
Huettmann,
Hansfrieder
Schleiermacher,
Joerg
Eicholz, and
Edmund
Koch,
Linear OCT system with down conversion of the fringe pattern, Valery, V. Tuchin and Joseph, A. Izatt and James, G. Fujimoto, Eds. SPIE, 2004. pp. 260-267.
Linear OCT system with down conversion of the fringe pattern, Valery, V. Tuchin and Joseph, A. Izatt and James, G. Fujimoto, Eds. SPIE, 2004. pp. 260-267.
| Datei: | 12.531323 |
| Bibtex: | @inproceedings{Koch-2004,
author = {Koch, Peter and Huettmann, Gereon and Schleiermacher, Hansfrieder and Eicholz, Joerg and Koch, Edmund},
title = {Linear OCT system with down conversion of the fringe pattern},
editor = {Valery, V. Tuchin and Joseph, A. Izatt and James, G. Fujimoto},
publisher = {SPIE},
volume = {5316},
pages = {260-267},
Year = { 2004},
URL = { https://doi.org/10.1117/12.531323}
} |
2003
Gereon
Huettmann,
Benno
Radt, and
Jesper
Serbin,
Inactivation of proteins by irradiation of gold nanoparticles with nano- and picosecond laser pulses, Rudolf, W. Steiner, Eds. SPIE, 2003. pp. 88-95.
Inactivation of proteins by irradiation of gold nanoparticles with nano- and picosecond laser pulses, Rudolf, W. Steiner, Eds. SPIE, 2003. pp. 88-95.
| Datei: | ECBO.2003.5142_88 |
| Bibtex: | @inproceedings{Hüttmann2003,
author = {Huettmann, Gereon and Radt, Benno and Serbin, Jesper and Birngruber, Reginald},
title = {Inactivation of proteins by irradiation of gold nanoparticles with nano- and picosecond laser pulses},
editor = {Rudolf, W. Steiner},
publisher = {SPIE},
volume = {5142},
pages = {88-95},
URL = { https://doi.org/10.1364/ECBO.2003.5142_88},
year = { 2003}
}
|
2002
Georg
Schuele,
Gereon
Huettmann, and
Ralf
Brinkmann,
Noninvasive temperature measurements during laser irradiation of the retina with optoacoustic techniques, Fabrice, Manns and Per, G. Soederberg and Arthur, Ho, Eds. Proc. SPIE, 2002. pp. 64-71.
Noninvasive temperature measurements during laser irradiation of the retina with optoacoustic techniques, Fabrice, Manns and Per, G. Soederberg and Arthur, Ho, Eds. Proc. SPIE, 2002. pp. 64-71.
| Datei: | 12.470601 |
| Bibtex: | @inproceedings{Schuele-2002,
author = {Schuele, Georg and Huettmann, Gereon and Brinkmann, Ralf},
title = {Noninvasive temperature measurements during laser irradiation of the retina with optoacoustic techniques},
editor = {Fabrice, Manns and Per, G. Soederberg and Arthur, Ho},
publisher = {Proc. SPIE},
volume = {4611},
pages = {64-71},
year = { 2002},
url = { https://doi.org/10.1117/12.470601}
}
|
2001
Björn I.
Lange,
Benno
Radt, and
Gereon
Huettmann,
Cr,Tm,Ho: YAG laser amplifier, Richard, Scheps, Eds. SPIE, 2001. pp. 169-174.
Cr,Tm,Ho: YAG laser amplifier, Richard, Scheps, Eds. SPIE, 2001. pp. 169-174.
| Datei: | 12.424616 |
| Bibtex: | @inproceedings{Lange2001,
author = {Lange, Bjoern I. and Radt, Benno and Huettmann, Gereon},
title = {Cr,Tm,Ho: YAG laser amplifier},
editor = {Richard, Scheps},
publisher = {SPIE},
volume = {4267},
pages = {169-174},
URL = {https://doi.org/10.1117/12.424616},
Year = { 2001}
}
|
Benno
Radt,
Jesper
Serbin,
Björn I.
Lange,
Reginald
Birngruber, and
Gereon
Huettmann,
Laser-generated micro- and nanoeffects: inactivation of proteins coupled to gold nanoparticles with nano- and picosecond pulses, Reginald, Birngruber and Hubert van den, Bergh, Eds. SPIE, 2001. pp. 16-24.
Laser-generated micro- and nanoeffects: inactivation of proteins coupled to gold nanoparticles with nano- and picosecond pulses, Reginald, Birngruber and Hubert van den, Bergh, Eds. SPIE, 2001. pp. 16-24.
| Datei: | 12.446518 |
| Bibtex: | @inproceedings{Radt-2001,
author = {Radt, Benno and Serbin, Jesper and Lange, Bjoern I. and Birngruber, Reginald and Huettmann, Gereon},
title = {Laser-generated micro- and nanoeffects: inactivation of proteins coupled to gold nanoparticles with nano- and picosecond pulses},
editor = {Reginald, Birngruber and Hubert van den, Bergh},
publisher = {SPIE},
volume = {4433},
pages = {16-24},
year = { 2001},
URL = { https://doi.org/10.1117/12.446518}
}
|
Gereon
Hüttmann,
J.
Serbin,
B.
Radt,
Björn I.
Lange, and
Reginald
Birngruber,
Model system for investigating laser-induced subcellular microeffects., Proc SPIE , vol. 4257, pp. 398-409, 2001.
Model system for investigating laser-induced subcellular microeffects., Proc SPIE , vol. 4257, pp. 398-409, 2001.
2000
Ralf
Brinkmann,
Gereon
Hüttmann,
J.
Rögener,
J.
Roider,
Reginald
Birngruber, and
C. P.
Lin,
Corneal endothelial cell damage after experimental diode laser thermal keratoplasty, Lasers Surg Med , vol. 27(5), pp. 451-64, 2000.
Corneal endothelial cell damage after experimental diode laser thermal keratoplasty, Lasers Surg Med , vol. 27(5), pp. 451-64, 2000.
| Datei: | 227934019_Origin_of_retinal_pigment_epithelium_cell_damage_by_pulsed_laser_irradiance_in_the_nanosecond_to_microsecond_time_regimen |
| Bibtex: | @article{Brinkmann2000-1,
author = {Brinkmann, R. and Huttmann, G. and Rogener, J. and Roider, J. and Birngruber, R. and Lin, C. P.},
title = {Origin of retinal pigment epithelium cell damage by pulsed laser irradiance in the nanosecond to microsecond time regimen},
journal = {Lasers Surg Med},
volume = {27(5)},
Year = { 2000},
url = { https://www.researchgate.net/publication/227934019_Origin_of_retinal_pigment_epithelium_cell_damage_by_pulsed_laser_irradiance_in_the_nanosecond_to_microsecond_time_regimen},
pages = {451-64},
note = {0196-8092 (Print)
In Vitro
Journal Article
Research Support, Non-U.S. Gov't},
abstract = {BACKGROUND AND OBJECTIVE: Selective photodamage of the retinal pigment epithelium (RPE) is a new technique to treat a variety of retinal diseases without causing adverse effects to surrounding tissues such as the neural retina including the photoreceptors and the choroid. In this study, the mechanism of cell damage after laser irradiation was investigated. STUDY DESIGN/MATERIALS AND METHODS: Single porcine RPE-melanosomes and RPE cells were irradiated with a Nd:YLF laser (wavelength lambda = 527 nm, adjustable pulse duration tau = 250 nsec-3 microsec) and a Nd:YAG laser (lambda = 532 nm, tau = 8 nsec). Fast flash photography was applied to observe vaporization at melanosomes in suspension. A fluorescence viability assay was used to probe the cells vitality. RESULTS: The threshold radiant exposures for vaporization around individual melanosomes and for ED50 cell damage are similar at 8-nsec pulse duration. Both thresholds increase with pulse duration; however, the ED50 cell damage radiant exposure is 40% lower at 3 microsec. Temperature calculations to model the onset of vaporization around the melanosomes are in good agreement with the experimental results when assuming a surface temperature of 150 degrees C to initiate vaporization and a homogeneous melanosome absorption coefficient of 8,000 cm(-1). Increasing the number of pulses delivered to RPE cells at a repetition rate of 500 Hz, the ED50 value }
} |
Gereon
Hüttmann,
B.
Radt, and
Reginald
Birngruber,
Laserinduzierte Mikro- und Nanoeffekte - Von der selektiven Thermolyse zu molekularen Nanoeffekten, LaserOpto , vol. 32, pp. 47-55, 2000.
Laserinduzierte Mikro- und Nanoeffekte - Von der selektiven Thermolyse zu molekularen Nanoeffekten, LaserOpto , vol. 32, pp. 47-55, 2000.
Gereon
Hüttmann, and
Reginald
Birngruber,
Laserinduzierte thermische Gewebseffekte mit mikroskopischer und makromolekularer Präzision, Z Med Phys , vol. 10, pp. 169-174, 2000.
Laserinduzierte thermische Gewebseffekte mit mikroskopischer und makromolekularer Präzision, Z Med Phys , vol. 10, pp. 169-174, 2000.
G.
Schule,
Gereon
Hüttmann,
J.
Roider,
C.
Wirbelauer,
Reginald
Birngruber, and
Ralf
Brinkmann,
Optoacoustic measurements during µs-irradiation of the retinal pigment epithelium, Proc. SPIE , vol. 3914A, 2000.
Optoacoustic measurements during µs-irradiation of the retinal pigment epithelium, Proc. SPIE , vol. 3914A, 2000.
1999
Gereon
Hüttmann, and
Reginald
Birngruber,
On the possibility of high-precision photothermal microeffects and the measurement of fast thermal denaturation of proteins, Ieee Journal of Selected Topics in Quantum Electronics , vol. 5, no. 4, pp. 954-962, 1999.
On the possibility of high-precision photothermal microeffects and the measurement of fast thermal denaturation of proteins, Ieee Journal of Selected Topics in Quantum Electronics , vol. 5, no. 4, pp. 954-962, 1999.
| DOI: | Doi 10.1109/2944.796317 |
| Datei: | WOS:000083257800013 |
| Bibtex: | @article{Hüttmann1999,
author = {Huttmann, G. and Birngruber, R.},
title = {On the possibility of high-precision photothermal microeffects and the measurement of fast thermal denaturation of proteins},
journal = {Ieee Journal of Selected Topics in Quantum Electronics},
volume = {5},
number = {4},
pages = {954-962},
note = {248CM
Times Cited:77
Cited References Count:43},
abstract = {The precision of laser-induced effects is often limited by thermal and thermomechanical collateral damage. Adjusting the pulsewidth of the laser to the size of the absorbing structure can at least avoid thermal side effects and facilitates a selective treatment of vessels or pigmented cells. Further extending the precision of thermal effects below cellular dimensions by using nanometer sized particles could open up new fields of applications for lasers in medicine and biology. Calculations show that under irradiation with nano- or picosecond laser pulses gold particles of submicrometer size can easily be heated by several hundred K, High temperatures have to be used for subcellular thermal effects, because heat confinement to such small structures requires the thermal damage to occur in extremely short times. Estimating the denaturation temperature by extrapolating the Arrhenius equation from a time range of minutes and seconds into a time range of nano- and picoseconds leads to temperatures beta;een 370 K-470 K, There is evidence that in aqueous media, due to the surface tension, these temperatures can be generated at the surface of nanometer sized particles without vaporization of the surrounding water,
In order to show whether or not an extrapolation of the damage rates over six to nine orders of magnitude gives correct data, a temperature-jump experiment was designed and tested which allows to measure denaturation rates of proteins in the millisecond time range. Denaturation of chymotrypsin was observed within 300 mu s at temperatures below 380 K, The rate constants for the unfolding of chymotrypsin followed the Arrhenius equation up to rates of 3000 s(-1).},
keywords = {laser medicine
microeffects
protein denaturation
thermal effects
assisted laser inactivation},
ISSN = {1077-260X},
DOI = {Doi 10.1109/2944.796317},
url = {<Go to ISI>://WOS:000083257800013},
year = {1999},
type = {Journal Article}
}
|
Gereon
Hüttmann, and
Reginald
Birngruber,
On the Possibility of High-Precision Photothermal Microeffects and the Measurement of Fast thermal Denaturation of Proteins., IEEE J Quant Electr , vol. 5, no. 4, pp. 954-962, 1999.
On the Possibility of High-Precision Photothermal Microeffects and the Measurement of Fast thermal Denaturation of Proteins., IEEE J Quant Electr , vol. 5, no. 4, pp. 954-962, 1999.
Ralf
Brinkmann,
J.
Rögener,
C.P.
Lin,
J.
Roider,
Reginald
Birngruber, and
Gereon
Hüttmann,
Selective RPE-Photodestruction: Mechanism of Cell Damage by pulsed laser irradiance in the ns to µs time regime, Proc. SPIE , vol. 3601, pp. 59-65, 1999.
Selective RPE-Photodestruction: Mechanism of Cell Damage by pulsed laser irradiance in the ns to µs time regime, Proc. SPIE , vol. 3601, pp. 59-65, 1999.
1998
Gereon
Hüttmann, and
Reginald
Birngruber,
Dynamics of Thermal Microeffects: Rate Constants of Thermal Denaturation Measured by a Temperature-Jump Experiment, OSA TOPS , vol. 22, pp. 300-305, 1998.
Dynamics of Thermal Microeffects: Rate Constants of Thermal Denaturation Measured by a Temperature-Jump Experiment, OSA TOPS , vol. 22, pp. 300-305, 1998.
Rolf H.
Eichenauer,
Gereon
Huettmann,
Stephan
Woermer,
Norbert
Koop,
Wolfgang
Beyer, and
Dieter
Jocham,
New balloon catheter system used for PDT in the human urinary bladder: accuracy of light distribution, pp. 138-144, 1998.
New balloon catheter system used for PDT in the human urinary bladder: accuracy of light distribution, pp. 138-144, 1998.
1997
C.
Hendrich,
Gereon
Hüttmann,
C.
Lehnert,
H.
Diddens, and
W.E.
Siebert,
Photodynamic laser therapy for rheumatoid arthritis: Cell culture studies and animal experiments., Knee Surg Sports Traumatol Arthroscopy , vol. 5, pp. 58-63, 1997.
Photodynamic laser therapy for rheumatoid arthritis: Cell culture studies and animal experiments., Knee Surg Sports Traumatol Arthroscopy , vol. 5, pp. 58-63, 1997.
1996
M.
Novo,
Gereon
Hüttmann, and
H.
Diddens,
Chemical instability of 5-aminolevulinic acid used in the fluorescence diagnosis of bladder tumours, J Photoch Photobio , vol. 34, pp. 143-148, 1996.
Chemical instability of 5-aminolevulinic acid used in the fluorescence diagnosis of bladder tumours, J Photoch Photobio , vol. 34, pp. 143-148, 1996.
Gereon
Hüttmann,
W.
Achtelik,
M.
Löning,
K.
Sommer, and
H.
Diddens,
Fluorescence microscopy studies on ALA sensitized tissues, in SPIE Proc. , 1996. pp. 24-31.
Fluorescence microscopy studies on ALA sensitized tissues, in SPIE Proc. , 1996. pp. 24-31.
| Datei: | 12.260815 |
| Bibtex: | @inproceedings{Hüttmann,
author = {Hüttmann, G. and Achtelik, W. and Löning, M. and Sommer, K. and Diddens, H.},
title = {Fluorescence microscopy studies on ALA sensitized tissues},
booktitle = {SPIE Proc.},
volume = {2926},
pages = {24-31},
year = { 1996},
URL = { https://doi.org/10.1117/12.260815}
}
|
Gereon
Hüttmann,
C.
Hendrich,
Reginald
Birngruber,
C.
Lehnert,
J.
Seara,
W. E.
Siebert, and
H.
Diddens,
Protoporphyrin IX distribution after intra-articular and systemic application of 5-aminolevulinic acid in healthy and arthritic joints . Mechanisms and Techniques in Photodynamic Therapy V,, in Proc. SPIE , 1996. pp. 238-242.
Protoporphyrin IX distribution after intra-articular and systemic application of 5-aminolevulinic acid in healthy and arthritic joints . Mechanisms and Techniques in Photodynamic Therapy V,, in Proc. SPIE , 1996. pp. 238-242.
1994
Y.
Pan,
R.
Engelhardt,
J.
Rosperich,
G.
Hüttmann, and
Reginald
Birngruber,
Measurement of Optical-Transport-Coefficients of Intralipid in Visible and NIR Range, in Proc. SPIE , 1994. pp. 354-363.
Measurement of Optical-Transport-Coefficients of Intralipid in Visible and NIR Range, in Proc. SPIE , 1994. pp. 354-363.
| Datei: | 12.182954 |
| Bibtex: | @inproceedings{Pan,
author = {Pan, Y. and Engelhardt, R. and Rosperich, J. and Hüttmann, G. and Birngruber, R.},
title = {Measurement of Optical-Transport-Coefficients of Intralipid in Visible and NIR Range},
booktitle = {Proc. SPIE},
volume = {2134A},
pages = {354-363},
Year = { 1994},
URL = { https://doi.org/10.1117/12.182954}
}
|
G.
Hüttmann,
S.
Churio,
S.E.
Braslavsky, and
Reginald
Birngruber,
The Possibility of Measuring Thermal Protein Denaturation by an Optoacoustic Method., in Proc. SPIE , 1994. pp. 202-212.
The Possibility of Measuring Thermal Protein Denaturation by an Optoacoustic Method., in Proc. SPIE , 1994. pp. 202-212.
| Datei: | 12.168030 |
| Bibtex: | @inproceedings{Hüttmann,
author = {Hüttmann, G. and Churio, S. and Braslavsky, S.E. and Birngruber, R.},
title = {The Possibility of Measuring Thermal Protein Denaturation by an Optoacoustic Method.},
booktitle = {Proc. SPIE},
volume = {2077},
pages = {202-212},
url = { https://doi.org/10.1117/12.168030},
year = { 1994}
}
|

