Results 101 to 110 of about 54,612 (308)

Electrochemical biosensors for pathogen detection

Biosensors and Bioelectronics, 2020
Recent advances in electrochemical biosensors for pathogen detection are reviewed. Electrochemical biosensors for pathogen detection are broadly reviewed in terms of transduction elements, biorecognition elements, electrochemical techniques, and biosensor performance.
Cesewski, Ellen, Johnson, Blake N.
openaire   +2 more sources

Digital Microneedles for Multiplexed Transdermal Sensing via Fluorescent QR Codes

Advanced Materials, EarlyView.
Digital fluorescent microneedles encode biochemical information in skin into scannable QR codes through threshold‐activated probes that generate binary on/off signals. By transforming analog fluorescence into discrete digital patterns, this platform enables calibration‐free, multiplexed transdermal sensing of physiologically relevant biomarkers ...
Farbod Abazar, Shahrokh Vahabi, Elena Bellotti, Martina Corsi, Irene Nocera, Paola Orlandi, Guido Bocci, Giuseppe Barillaro   +7 more
wiley   +1 more source

A high aspect ratio Fin-Ion Sensitive Field Effect Transistor: compromises towards better electrochemical bio-sensing [PDF]

, 2019
The development of next generation medicines demand more sensitive and reliable label free sensing able to cope with increasing needs of multiplexing and shorter times to results.
García, César Pascual, Leturcq, Renaud, Olthuis, Wouter, Rani, Dipti, Rollo, Serena   +4 more
core   +3 more sources

Light‐Controlled Exposure of Cancer Cells to Reactive Oxygen Species Using Organic Semiconductor Thin Films

Advanced Materials Interfaces, EarlyView.
Spin‐coated films of the conjugated polymer F8T2 (poly (9,9‐dioctylfluorene‐alt‐bithiophene)) generate superoxide at the film‐medium interface, enabling precise delivery of reactive oxygen species (ROS) as visible‐light “ROS patches.” Coated surfaces drive rapid, localised cytotoxicity in MCF7 cancer monolayers under white light, providing a reagent ...
Joe Kaye, Niculina Miron, Benjamin Fortes Mayer, Yukai Shi, Boyuan Chen, Lewis Krzeczkowski, Robert J. E. Westbrook, Saif A. Haque, Ali Salehi‐Reyhani   +8 more
wiley   +1 more source

Cytokine and Cancer Biomarkers Detection: The Dawn of Electrochemical Paper-Based Biosensor

Sensors, 2020
Although the established ELISA-based sensing platforms have many benefits, the importance of cytokine and cancer biomarkers detection for point-of-care diagnostics has propelled the search for more specific, sensitive, simple, accessible, yet economical ...
Song Wei Loo, Tze-Sian Pui
doaj   +1 more source

Giant magnetoimpedance: new electrochemical option to monitor surface effects?

, 2006
Magnetoimpedance, MI, change due to surface modification of the sensitive element caused by biofluids was studied with the aim of creating a robust sensor capable of separating the chemical surface modification from the sensing process.
Baselt, Beach, Ferreira, Galina V. Kurlyandskaya, Guan, Katz, Kurlyandskaya, Miller, Ong, Turner, Vanessa Fal Miyar, Vazquez   +11 more
core   +1 more source

Powder‐to‐Film Conversion of Nickel Single‐Atom Catalysts into Binder‐Free and Resistant Electrodes

Advanced Materials Interfaces, EarlyView.
A reproducible strategy is reported for fabricating standalone thin‐film electrodes composed of CNx‐supported Ni single‐atom catalysts. The resulting binder‐free electrodes exhibit robust stability, enhanced charge transfer, and superior electrochemical performance, offering scalable opportunities for applications in electrochemistry. ABSTRACT Although
Milla Vigliengo, Nicolò Allasia, Shuting Xiang, Yurii P. Ivanov, Riccardo Gulminelli, Martin Sterrer, Giorgio Divitini, Anatoly I. Frenkel, Gianvito Vilé   +8 more
wiley   +1 more source

DNA sensing by electrocatalysis with hemoglobin [PDF]

, 2012
Electrocatalysis offers a means of electrochemical signal amplification, yet in DNA-based sensors, electrocatalysis has required high-density DNA films and strict assembly and passivation conditions.
Barton, Jacqueline K., Guerra, Luis F., Pheeney, Catrina G.   +2 more
core   +2 more sources

Bioelectrical Interfaces Beyond Excitable Cells: Cancer, Aging, and Gene Expression Modulation

Advanced Materials Interfaces, EarlyView.
ABSTRACT The investigation of biological conductivity has evolved from its classical foundation based on ionic fluxes underpinning cardiac and neuronal excitability to a multifaceted regulator of cellular physiology. Traditional approaches for probing electrical events in living matter focused largely on action potentials recording.
Paolo Cadinu, Matthew K. Burgess, Catarina Franco Jones, Marzia Iarossi, Manuel Schröter, Nako Nakatsuka, Mustafa B. A. Djamgoz, Gil Gonçalves, Sidahmed Abayzeed, Paola Sanjuán‐Alberte, Paula M. Mendes, Frankie J. Rawson, Malavika Nair, Michael Levin, Rosalia Moreddu   +14 more
wiley   +1 more source

Improved Sensitivity and Selectivity Glucose Biosensor Based on PANI-GRA Nanocomposite Film Decorated with Pt Nanoparticles

International Journal of Electrochemical Science, 2018
A novel glucose biosensor was prepared by in situ electropolymerization of aniline in GRA synthesized by using electrochemical expansion of graphite in propylene carbonate electrolyte onto platinum (Pt) electrode, followed by electrodeposition of ...
Hao Zheng, Minghui Wang, Jianfang Chen, Maokun Liu, Ying Ye, Zupeng Yan   +5 more
doaj   +1 more source