Results 1 to 10 of about 706,275 (282)

Graphene-Based Electrochemical Biosensors for Breast Cancer Detection

Biosensors, 2023
Breast cancer (BC) is the most common cancer in women, which is also the second most public cancer worldwide. When detected early, BC can be treated more easily and prevented from spreading beyond the breast.
Ali Mohammadpour-Haratbar, Seyyed Behnam Abdollahi Boraei, Yasser Zare, Kyong Yop Rhee, Soo-Jin Park   +4 more
doaj   +4 more sources

Electrochemical biosensors for hormone analyses

Biosensors and Bioelectronics, 2015
Electrochemical biosensors have a unique place in determination of hormones due to simplicity, sensitivity, portability and ease of operation. Unlike chromatographic techniques, electrochemical techniques used do not require pre-treatment. Electrochemical biosensors are based on amperometric, potentiometric, impedimetric, and conductometric principle ...
Mustafa Kemal Sezgintürk
exaly   +5 more sources

Development and Optimization of Solanum Lycocarpum Polyphenol Oxidase-Based Biosensor and Application towards Paracetamol Detection [PDF]

Advanced Pharmaceutical Bulletin, 2021
Purpose: The development biosensing technologies capable of delivering fast and reliable analysis is a growing trend in drug quality control. Considering the emerging use of plant-based polyphenol oxidases (PPO) as biological component of electrochemical
Rafael Souza Antunes, Douglas Vieira Thomaz, Luane Ferreira Garcia, Eric de Souza Gil, Flavio Marques Lopes   +4 more
doaj   +1 more source

Responses of the Pheromone-Binding Protein of the Silk Moth Bombyx mori on a Graphene Biosensor Match Binding Constants in Solution

Sensors, 2021
An electronic biosensor for odors was assembled by immobilizing the silk moth Bombyx mori pheromone binding protein (BmorPBP1) on a reduced graphene oxide surface of a field-effect transistor. At physiological pH, the sensor detects the B.
Caroline Bonazza, Jiao Zhu, Roger Hasler, Rosa Mastrogiacomo, Paolo Pelosi, Wolfgang Knoll   +5 more
doaj   +1 more source

Electrochemical Biosensing Interface Based on Carbon Dots-Fe3O4 Nanomaterial for the Determination of Escherichia coli O157:H7

Frontiers in Chemistry, 2021
Escherichia coli (E. coli) O157:H7 can cause many food safety incidents, which seriously affect human health and economic development. Therefore, the sensitive, accurate, and rapid determination of E.
Xiaofeng Lin, Yanqiu Mei, Chen He, Yan Luo, Min Yang, Ying Kuang, Xiaoming Ma, Huifang Zhang, Qitong Huang   +8 more
doaj   +1 more source

The Use of Yeast Saccharomyces Cerevisiae as a Biorecognition element in the Development of a Model Impedimetric Biosensor for Caffeine Detection

Acta Chimica Slovenica, 2022
In the present study, an electrochemical-impedimetric biosensor using Saccharomyces cerevisiae as an effective biorecognition element was designed to detect caffeine.
Zala Štukovnik, Regina Fuchs Godec, Urban Bren   +2 more
doaj   +1 more source

Comparing Surface Plasmon-Optical and Electronic Immuno-Sensing of Affinity Interactions—A Case Study

Chemosensors, 2021
In this case study, we provide a few examples for affinity-sensors based on optical detection concepts and compare them with electronic read-out schemes.
Wolfgang Knoll, Jing Liu, Fang Yu, Lifang Niu, Ciril Reiner-Rozman, Ingo Köper   +5 more
doaj   +1 more source

A Miniaturized Electrochemical Biosensor Based on Poly(L-threonine) Modified Pencil Graphite Electrodes and Its Application for Trace-Level Determination of Uric Acid, Xanthine and Hypoxanthine

International Journal of Electrochemical Science, 2021
A miniaturized and simple analysis tool is of vital importance for practical applications in bioanalysis. This paper describes a new strategy for the trace determination of uric acid (UA), xanthine (XA) and hypoxanthine (HX) by using miniaturized ...
Zhengcai Guo, Guiyan Wang, Jinlian Li, Dongmei Wu, Xiaoling Guo   +4 more
doaj   +1 more source

Determination of Methyldopa and Paracetamol in Pharmaceutical Samples by a Low Cost Genipa americana L. Polyphenol Oxidase Based Biosensor [PDF]

Advanced Pharmaceutical Bulletin, 2019
Purpose: Jenipapo fruit (Genipa americana L) is a natural source of polyphenol oxidases (PPOs) whose potential in pharmaceutical analysis is noteworthy.
Rafael Souza Antunes, Douglas Vieira Thomaz, Luane Ferreira Garcia, Eric de Souza Gil, Vernon Sydwill Sommerset, Flavio Marques Lopes   +5 more
doaj   +1 more source

Electrochemically Exfoliated Graphene Quantum Dots Based Biosensor for CD44 Breast Cancer Biomarker

Biosensors, 2022
An innovative electrochemical biosensor based on graphene quantum dots (GQDs) is developed for a simple, rapid, and highly sensitive primary diagnosis of the breast cancer biomarker cluster of differentiation-44 (CD44) antigen.
Neeraj Kumar, Shalu Yadav, Mohd Abubakar Sadique, Raju Khan   +3 more
doaj   +1 more source