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Christian Santschi

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Publications associées (71)

Pro-oxidant effects of nano-TiO2 on Chlamydomonas reinhardtii during short-term exposure

Paul Bowen, Christian Santschi, Olivier Martin, Lionel André Maurizi, Volodymyr Koman, Nadia Rachel Von Moos, Amarnath Jayaprakash

This study sheds light on the short-term dynamics of pro-oxidant processes related to the exposure of C. reinhardtii microalgae to nano-TiO2 using (a) conventional fluorescence probes for cellular pro-oxidant process and (b) a recently developed cytochrome ...

Royal Soc Chemistry2016

Highly Improved Fabrication of Ag and Al Nanostructures for UV and Nonlinear Plasmonics

Christian Santschi, Philippe Langlet, Olivier Martin, Krishnan Thyagarajan

Wiley-V C H Verlag Gmbh2016

Maximal absorption regime in random media

Christian Santschi, Olivier Martin, Volodymyr Koman

Efficient optical energy transfer is key to many technologies, ranging from biosensing to photovoltaics. Here, for the first time we show that by introducing a random medium with appropriate filling factor, absorption in a specific volume can be maximized. ...

Optical Society of America2016

A miniaturized electrochemical biosensor for homocysteine using a screen-printed electrodes with cytochrome c anchored gold nanoparticles

Christian Santschi, Olivier Martin, Madasamy Thangamuthu

2015

Multiscattering-Enhanced Absorption Spectroscopy

Christian Santschi, Olivier Martin, Volodymyr Koman

An original scheme for sensitive absorption measurements, particularly well-suited for low analyte concentrations, is presented. The technique is based on multiscattering-enhanced absorption spectroscopy (MEAS) and benefits from the advantages of conventio ...

Amer Chemical Soc2015

Colour transmission of copper nanoparticle-loaded medieval stained glass: from plasmon resonances to colour perception

Christian Santschi, Olivier Martin

2015

Portable oxidative stress sensor: Dynamic and non-invasive measurements of extracellular H2O2 released by algae

Christian Santschi, Olivier Martin, Volodymyr Koman

Reactive oxygen species (ROS) generated by aerobic organisms are essential for physiological processes such as cell signaling, apoptosis, immune defense and oxidative stress mechanisms. Unbalanced oxidant/antioxidant budgets are involved in many diseases a ...

Elsevier2015

Multiscattering-enhanced optical biosensor: multiplexed, non-invasive and continuous measurements of cellular processes

Christian Santschi, Olivier Martin, Volodymyr Koman

The continuous measurement of uptake or release of biomarkers provides invaluable information for understanding and monitoring the metabolism of cells. In this work, a multiscattering-enhanced optical biosensor for the multiplexed, non-invasive, and contin ...

Optical Soc Amer2015

A miniaturized electrochemical assay for homocysteine using screen-printed electrodes with cytochrome c anchored gold nanoparticles

Christian Santschi, Olivier Martin, Madasamy Thangamuthu

Determination of homocysteine (HcySH) is highly beneficial in human physiology and pathophysiology for diagnosis and prognosis of cardiovascular diseases (CVD). Unfortunately, the practicability of the existing methodologies for the determination of HcySH ...

Royal Society of Chemistry2015

Spectral tunability of realistic plasmonic nanoantennas

Christian Santschi, Olivier Martin, Alejandro Ernesto Portela Otano

Single nanoantenna spectroscopy was carried out on realistic dipole nanoantennas with various arm lengths and gap sizes fabricated by electron-beam lithography. A significant difference in resonance wavelength between realistic and ideal nanoantennas was f ...

Amer Inst Physics2014

Absorbance enhancement in microplate wells for improved-sensitivity biosensors

Christian Santschi, Olivier Martin, Guillaume Suarez

A genericopticalbiosensingstrategywasdevelopedthatreliesontheabsorbanceenhancementphenom- enon occurringinamultiplescatteringmatrix.Experimentally,insertsmadeofglass fiber membranewere placedintomicroplatewellsinordertosignificantlylengthenthetrajectoryoft ...

Elsevier2014

Quantitative Extraction of Equivalent Lumped Circuit Elements for Complex Plasmonic Nanostructures

Christian Santschi, Olivier Martin, Banafsheh Abasahl

We establish a general method to bridge the gap between full-field electromagnetic calculations and equivalent lumped circuit elements to describe the optical response of plasmonic nanostnictures. The exact value of each lumped element is extracted from on ...

Amer Chemical Soc2014

A new fabrication method for aluminium and silver plasmonic nanostructures

Christian Santschi, Olivier Martin, Krishnan Thyagarajan

2014

Biosynthesis of gold nanostructures using human cells

Christian Santschi, Sandrine Gerber, Olivier Martin, Shourya Dutta Gupta

2014

A New Fabrication Method for Aluminum and Silver

Christian Santschi, Olivier Martin, Krishnan Thyagarajan

2014

Measuring the optical absorption of 10 nm gold nanoparticles using multiscattering-enhanced absorption spectroscopy in a dielectric metamaterials

Christian Santschi, Olivier Martin, Volodymyr Koman

2014

Let nature do it: Using human cells to synthesize plasmonic nanoparticles

Christian Santschi, Olivier Martin, Shourya Dutta Gupta

2013

Coupling Strength Can Control the Polarization Twist of a Plasmonic Antenna

Christian Santschi, Olivier Martin, Banafsheh Abasahl, Shourya Dutta Gupta

The far-field polarization of the optical response of a plasmonic antenna can be tuned by subtly engineering of its geometry. In this paper, we develop design rules for nano antennas which enable the generation of circular polarized light via the excitatio ...

American Chemical Society2013

Large-Area Gold/Parylene Plasmonic Nanostructures Fabricated by Direct Nanocutting

Christian Santschi, Jürgen Brugger, Olivier Martin, Benjamin Gallinet, Valentin Flauraud, Shourya Dutta Gupta, Vaida Auzelyte

Wiley-V C H Verlag Gmbh2013

Using human cells to synthesize plasmonic nanoparticles

Christian Santschi, Olivier Martin, Shourya Dutta Gupta

2013

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