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Andreas Stephan Lesch

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Publications associées (58)

Inkjet Printed Carbon Nanotube Electrodes for Measuring Pyocyaninand Uric Acid in a Wound Fluid Simulant and Culture Media

Hubert Girault, Andreas Stephan Lesch, Milica Jovic

Polyacrylamide-coated, carbon nanotube (PA/CNT)electrodes were prepared by an ink-jet printing process and used to measure pyocyanin and uric acid in a wound fluid simulant at 37 oC.These two moleculesare potential indicators of infection and therefore the ...

2019

Detection of bacteria

Hubert Girault, Horst Pick, Andreas Stephan Lesch, Yingdi Zhu, Milica Jovic

A method for bacteria detection and the assessment of the antimicrobial susceptibility profile uses a bacterial viability assay based on combining a highly efficient affinity bacteria enrichment/ separation with an electrochemical redox interrogation measu ...

2019

Rapid inkjet printing of high catalytic activity Co3O4 /N-rGO layers for oxygen reduction reaction

Hubert Girault, Véronique Amstutz, Emad Oveisi, Andreas Stephan Lesch, Victor Costa Bassetto

The accurate and reproducible large-scale production of catalyst layers containing low-cost, abundant electrocatalysts gains in importance. Herein, pivotal factors are discussed that need to be considered when a combined inkjet printing and photonic curing ...

2018

Electrochemical Imaging of Cells and Tissues

Hubert Girault, Andreas Stephan Lesch, Tzu-En Lin

The technological and experimental progress in electrochemical imaging of biological specimens is discussed with a view on potential applications for skin cancer diagnostics, reproductive medicine and microbial testing. The electrochemical analysis of sing ...

2018

Surface-confined Electrochemiluminescence Microscopy of Cell Membranes

Andreas Stephan Lesch, Milica Jovic

Herein is reported a surface-confined microscopy based on electrochemiluminescence (ECL) which allows to image the plasma membrane of single cells at the interface with an electrode. By analyzing photoluminescence (PL), ECL and AFM images of mammalian CHO ...

2018

Water-Repellent Low-Dimensional Fluorous Perovskite as Interfacial Coating for 20% Efficient Solar Cells

Mohammad Khaja Nazeeruddin, Andreas Stephan Lesch, Kyung Taek Cho, Iwan Zimmermann, Giulia Grancini, Yi Zhang

Hybrid perovskite solar cells have been capturing an enormous research interest in the energy sector due to their extraordinary performances and ease of fabrication. However, low device lifetime, mainly due to material and device degradation upon water exp ...

American Chemical Society (ACS)2018

Microfluidic Probes for Scanning Electrochemical Microscopy

Hubert Girault, Fernando Cortes Salazar, Andreas Stephan Lesch, Alexandra Bondarenko, Tzu-En Lin

This chapter discusses the soft microfluidic scanning electrochemical microscopy (SECM) probes represent a versatile tool for supporting various investigations ranging from the electrochemical characterization of different surfaces to the local perturbatio ...

Wiley2018

Fashioning Fluorous Organic Spacers for Tunable and Stable Layered Hybrid Perovskites

Mohammad Khaja Nazeeruddin, Andreas Stephan Lesch, Valentin Ianis Emmanuel Queloz, Iwan Zimmermann, Giulia Grancini, Inés Garcia Benito

2018

Inkjet-printed mesoporous TiO2 and perovskite layers for high efficiency perovskite solar cells

Hubert Girault, Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Emad Oveisi, Andreas Stephan Lesch, Yonghui Lee, Victor Costa Bassetto, Sanghyun Paek, Aron Joel Huckaba, Rui Xia

2018

Large-scale layer-by-layer inkjet printing of flexible iridium-oxide based pH sensors

Hubert Girault, Fernando Cortes Salazar, Andreas Stephan Lesch, Jonnathan Cesar Hidalgo Acosta, Evgeny Smirnov, Victor Costa Bassetto, Milica Jovic

2018

Print-Light-Synthesis of Platinum Nanostructured Indium-Tin-Oxide Electrodes for Energy Research

Andreas Stephan Lesch

Print-light-synthesis is a new concept for the large-scale in situ fabrication of nanoparticles and structures on large substrates. Here, Pt nanoparticles are synthesized on indium tin oxide (ITO) coated glass slides by using combined inkjet printing and p ...

Wiley2018

Immuno-affinity Amperometric Detection of Bacterial Infections

Hubert Girault, Horst Pick, Michel Prudent, Andreas Stephan Lesch, Yingdi Zhu, Milica Jovic

A combination of an immuno-affinity enrichment strategy and sensitive amperometric read-out was implemented in a point-of-care platform intended for bacterial infection analysis. Bacterial cells, selectively captured and enriched from complex matrices thro ...

Wiley-VCH Verlag GmbH2018

Aqueous metal-organic solutions for YSZ thin film inkjet deposition

Andreas Stephan Lesch

Inkjet printing of 8% Y2O3-stabilized ZrO2 (YSZ) thin films is achieved by designing a novel water-based reactive ink for Drop-on-Demand (DoD) inkjet printing. The ink formulation is based on a novel chemical strategy that consists of a combination of meta ...

Royal Society of Chemistry2017

Inkjet-printed microtiter plates for portable electrochemical immunoassays

Hubert Girault, Frédéric Gumy, Fernando Cortes Salazar, Andreas Stephan Lesch, Alexandra Bondarenko, Yingdi Zhu, Milica Jovic

Herein, we present the large-scale fabrication of multiplexed three-electrode sensors used in a point-of-care device platform that couples a magnetic bead-based immunoassay strategy with amperometric detection for rapid and highly sensitive analysis. The m ...

Elsevier Science Sa2017

Weiche elektrochemische Sonden zum Abbilden der Verteilung von Biomarkern und injizierten Nanomaterialien in tierischem und menschlichem Gewebe

Hubert Girault, Horst Pick, Yu Lu, Andreas Stephan Lesch, Tzu-En Lin

Die Untersuchung von Biomarkern und injizierten theranostischen Nanomaterialien in Geweben und Organen spielt eine zentrale Rolle bei zahlreichen medizinischen Verfahren von der Krebsdiagnose bis hin zur Arzneimittelverabreichung. Zu diesem Zweck kann die ...

Wiley-Blackwell2017

The antioxidant capacity of erythrocyte concentrates is increased during the first week of storage and correlated with the uric acid level

Hubert Girault, Michel Prudent, Niels Erik Lion, Fernando Cortes Salazar, Manon Sandra Bardyn, Sunny Isaïe Maye, Andreas Stephan Lesch

Background and Objectives: Red blood cells (RBCs) suffer from lesions during cold storage, depending in part on their ability to counterbalance oxidative stress by activating their antioxidant defence. The aim of this study was to monitor the antioxidant p ...

Wiley-Blackwell2017

Mapping the antioxidant activity of apple peels with soft probe scanning electrochemical microscopy

Hubert Girault, Andreas Stephan Lesch, Tzu-En Lin

We present a non-invasive electrochemical strategy for mapping the antioxidant (AO) activity of apple peels, which counterbalances oxidative stress caused by various external effectors. Soft carbon microelectrodes were used for soft probe scanning electroc ...

Elsevier Science Sa2017

Single Cell Electrochemiluminescence Imaging: From the Proof-of-Concept to Disposable Device-Based Analysis

Andreas Stephan Lesch, Milica Jovic

We report here the development of coreactant-based electro-generated chemiluminescence (ECL) as a surface-confined microscopy to image single cells and their membrane proteins. Labeling the entire cell membrane allows one to demonstrate that, by contrast w ...

American Chemical Society2017

Soft Electrochemical Probes for Mapping the Distribution of Biomarkers and Injected Nanomaterials in Animal and Human Tissues

Hubert Girault, Horst Pick, Yu Lu, Andreas Stephan Lesch, Tzu-En Lin

Monitoring biomarkers and injected theranostic nanomaterials in tissues and organs plays a pivotal role in numerous medical applications ranging from cancer diagnostics to drug delivery. Scanning electrochemical microscopy has been demonstrated as a powerf ...

Wiley-Blackwell2017

Monitoring Tyrosinase Expression in Non-metastatic and Metastatic Melanoma Tissues by Scanning Electrochemical Microscopy

Hubert Girault, Horst Pick, Fernando Cortes Salazar, Andreas Stephan Lesch, Alexandra Bondarenko, Tzu-En Lin

Although tremendous progress has been made in the diagnosis of melanoma, the identification of different stages of malignancy in a reliable way remains challenging. Current strategies rely on optical monitoring of the concentration and spatial distribution ...

Wiley-Blackwell2016

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