Results 41 to 50 of about 706,275 (282)

Construction of a Biosensor Based on a Combination of Cytochrome c, Graphene, and Gold Nanoparticles

Sensors, 2018
A biosensor based on a combination of cytochrome c (Cyt c), electrochemical reduced graphene oxides (ERGO), and gold nanoparticles (AuNPs) on a glassy carbon electrode (GCE) was fabricated.
Chenxing Guo, Jianfang Wang, Xianzhe Chen, Yujiao Li, Lifang Wu, Jin Zhang, Cheng-an Tao   +6 more
doaj   +1 more source

Sensitive Electrochemical Detection of Phosphorylated-Tau Threonine 231 in Human Serum Using Interdigitated Wave-Shaped Electrode

Biomedicines, 2021
The development of an electrochemical biosensor for the detection of phosphorylated-tau threonine 231 (p-tau231), a biomarker of Alzheimer’s disease (AD), has yet to be achieved.
Hien T. Ngoc Le, Sungbo Cho
doaj   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

Nanoamphizymes: Self‐Assembled Amphiphilic Enzymatic Nanomaterials for High‐Performance Biocatalysis and Biosensing

Advanced Functional Materials, EarlyView.
An amphiphilic GOx nanoamphizyme was constructed by covalently introducing hydrophobic PPNI linkers onto GOx, enabling spontaneous self‐assembly into tunable nanoparticles. Mild crosslinking further stabilized the assemblies and enhanced catalytic performance and stability.
Yuan‐Hao Hsiao, Rajan Deepan Chakravarthy, Po‐Hsiang Chen, Abdelreheem Abdelfatah Saddik, Hsin‐Chieh Lin   +4 more
wiley   +1 more source

Ultrasensitive DNAzyme-based electrochemical biosensor for Pb2+ based on FcHT-mediated biocatalytic amplification

International Journal of Electrochemical Science, 2018
A ultrasensitive DNAzyme-based electrochemical biosensor for Pb2+ was developed by simultaneously modifying with GR-5 DNAzyme-substrate complex and 6-(ferroceney) hexanethiol (FcHT, a electron mediator) on Au electrode.
Jikui Wu, Shaohu Wei, Yunfei Lu, Ningna Ren, Xiaojun Bian, Junling Zhang   +5 more
doaj   +1 more source

Accelerated Electron Transfer in Nanostructured Electrodes Improves the Sensitivity of Electrochemical Biosensors

Advanced Science, 2021
Electrochemical biosensors hold the exciting potential to integrate molecular detection with signal processing and wireless communication in a miniaturized, low‐cost system. However, as electrochemical biosensors are miniaturized to the micrometer scale,
Kaiyu Fu, Ji‐Won Seo, Vladimir Kesler, Nicolo Maganzini, Brandon D. Wilson, Michael Eisenstein, Boris Murmann, H. Tom Soh   +7 more
doaj   +1 more source

Electrochemical biosensors for dopamine

Clinica Chimica Acta
Dopamine (DA), a key catecholamine, plays a pivotal role in the regulation of human cognition and emotions. It has profound effects on the hormonal, memory, and cardiovascular systems. Anomalies like Alzheimer's, Parkinson's, schizophrenia, and senile dementia are linked to abnormal DA levels.
Hang, Zhu, Xu, Guifen
openaire   +3 more sources

A Highly Selective DNA Sensor Based on Graphene Oxide-Silk Fibroin Composite and AuNPs as a Probe Oligonucleotide Immobilization Platform

Acta Chimica Slovenica, 2018
In this study, a simple and novel electrochemical biosensor based on a glassy carbon electrode (GCE) modified with a composite of graphene oxide (GO) - silk fibroin nanofibers (SF) and gold nanoparticles (MCH/ssDNA/AuNPs/SF/GO/GCE) was developed for ...
Ali Benvidi, Zohreh Abbasi, Marzieh Dehghan Tezerjani, Maryam Banaei, Hamid Reza Zare, Hossein Molahosseini, Shahriar Jahanbani   +6 more
doaj   +1 more source

Flavin adenine dinucleotide functionalized gold nanoparticles for the electrochemical detection of dopamine

Sensors and Actuators Reports, 2022
Dopamine (DA) is a neurotransmitter with multiple functions in the central nervous system, and whether found in low levels, activation of biological defense system and physiological activity is influenced.
Jennifer de Pontes Medrades, Cristiane C. Maciel, Ariana de Souza Moraes, Fábio de Lima Leite, Marystela Ferreira   +4 more
doaj   +1 more source

Single‐Cell Resolution Mapping of Osteoarthritis‐Associated Chondrocyte Dynamics Using a High‐Density CMOS MEA Platform

Advanced Healthcare Materials, EarlyView.
Single‐cell and spatially resolved impedance mapping using a high‐density CMOS‐MEA platform enables non‐invasive monitoring of osteoarthritis‐associated chondrocyte dynamics. Continuous label‐free measurements reveal heterogeneous remodeling behaviors, including proliferation, migration, and phenotypic transitions, establishing a powerful approach for ...
Neha Deshpande, Pauline Coquart, Bram Theuns, Susanne Cremery, Jaime Rodolfo V. Garcia III, Julien Verplanken, Dennis Lambrechts, Dries Braeken, Liesbet Lagae, Johanna Bolander   +9 more
wiley   +1 more source