Results 81 to 90 of about 20,594 (209)

An automated microfluidic biosensor with bispecific rabbit monoclonal antibody and nanozyme‐bioenzyme composite for dual antibiotic detection

BMEMat, Volume 4, Issue 1, March 2026.
This study introduces an automated microfluidic biosensor for simultaneous detection of florfenicol and thiamphenicol in environmental water. By integrating a phage‐screened bispecific rabbit monoclonal antibody with a nanozyme‐bioenzyme composite, the system achieves sensitive dual‐antibiotic detection. Coupled with smartphone‐based sensing, it offers
Fuyuan Zhang, Yang Liu, Juntao Wang, Haichao Zhang, Wenlong Yu, Yaxin Sang, Yun Liu, Guangze Yang, Fang Gao, Shuo Wang, Shilun Feng, Xianghong Wang   +11 more
wiley   +1 more source

A Label-Free Electrochemical Immunosensor for Carbofuran Detection Based on a Sol-Gel Entrapped Antibody

Sensors, 2011
In this study, an anti-carbofuran monoclonal antibody (Ab) was immobilized on the surface of a glassy carbon electrode (GCE) using silica sol-gel (SiSG) technology.
Qingqing Li, Wenping Zhao, Xiangyou Wang, Shuyuan Du, Xia Sun   +4 more
doaj   +1 more source

Kinetic Characterisation of a Single Chain Antibody against the Hormone Abscisic Acid: Comparison with Its Parental Monoclonal [PDF]

, 2016
A single-chain Fv fragment antibody (scFv) specific for the plant hormone abscisic acid (ABA) has been expressed in the bacterium Escherichia coli as a fusion protein.
A Hayhurst, A Sadanandom, A Wörn, AM Jones, Andrew J. Thompson, Andrew Marsh, B Kazemier, D Missiakas, DG Myszka, DG Myszka, DM Hoover, Ellen R Goldman, George O. Badescu, GM Banowetz, J Messens, J Phillips, J Wigger, LLH Christensen, M Malmqvist, MK Walker-Simmons, O Artsaenko, O Artsaenko, P Jurado, P Martineau, PB Luppa, Q Li, R Mertens, R Raag, R Waadt, Richard M. Napier, S Shaki-Loewensteina, SA Quarrie, SA Quarrie, SM Kipriyanova, Timothy R. Smith, TR Smith, UL Jönsson, WFM Stöcklein, Y-W Li   +38 more
core   +5 more sources

CRISPR Assays for Protein Detection

Chemistry–Methods, Volume 6, Issue 3, March 2026.
This review summarizes recent advances in CRISPR–Cas–based strategies for protein detection. Particular focus is placed on recognition element–based approaches, in which antibodies, aptamers, or DNAzymes convert protein binding into CRISPR‐readable nucleic acid signals, and activity‐based strategies that exploit intrinsic protein functions to trigger ...
Luca Capelli, Elena Spezzani, Dharshini Raghavan, Chiara Micucci, Alessandra Zanut, Alessandro Bertucci   +5 more
wiley   +1 more source

A sensitive immunosensor for detection of tumor biomarker based on bimetallic Cu-Zn oxide nanoparticles

Alexandria Engineering Journal
The current study was carried out to construct a novel colorimetric sandwich immunosensor for the sensitive, accurate, and rapid detection of prostate-specific antigen (PSA), a critical tumor biomarker for the diagnosis and screening of prostate cancer ...
Haotian Bai
doaj   +1 more source

Real‐time quality and safety monitoring of fruit juice using paper‐based platform

Food Biomacromolecules, Volume 3, Issue 1, Page 140-162, March 2026.
Schematic illustration of a paper‐based biosensor for rapid detection of fruit juice spoilage. Abstract Food spoilage and safety concerns still remain critically challenging within the fruit juice industry, especially as conventional detection methods, though precise, are often too time‐consuming, costly, and reliant on centralized laboratories.
Priti Das, Srushti Bhoite, Noopur Patil, Shubhro Chakrabartty, Debjani Dutta   +4 more
wiley   +1 more source

A flow SPR immunosensor based on a sandwich direct method [PDF]

, 2016
In this study, we report the development of an SPR (Surface Plasmon Resonance) immunosensor for the detection of ampicillin, operating under flow conditions. SPR sensors based on both direct (with the immobilization of the antibody) and competitive (with
Antiochia, Riccarda, Campanella, Luigi, Conta, Giorgia, Favero, Gabriele, Mazzei, Franco, Sanzo', Gabriella, Tomassetti, Mauro   +6 more
core   +2 more sources

Aptamer‐Based Approaches for Influenza Virus Detection: A Systematic Review

Health Science Reports, Volume 9, Issue 3, March 2026.
ABSTRACT Background and Aims Influenza remains a globally prevalent respiratory infection that is challenging to diagnose accurately. This systematic review focuses on aptamer‐based tools for influenza virus detection, aiming to overcome the limitations of traditional diagnostic methods.
Javad Charostad, Zohreh‐al‐sadat Ghoreshi, Nasir Arefinia, Faranak Salajegheh, Niloofar Farsiu, Mohammad Rezaei Zadeh Rukerd, Mohsen Nakhaie   +6 more
wiley   +1 more source

Detection of lymphoma biomarker ferritin using functionalized carbon nanotube platform

Alexandria Engineering Journal
For the detection of ferritin, this work engineered an electrochemical immunosensor by functionalizing multi-walled carbon nanotubes (MWCNTs) and integrating them into a screen-printed carbon electrode (SPCE) platform.
Shuang Qu, Chen Wang, Xiaoling Guo, Zhihai Zheng, Biyun Chen, Sicong Jiang   +5 more
doaj   +1 more source

A Novel Label-Free Amperometric Immunosensor Based on Graphene Sheets-Methylene Blue Nanocomposite/Gold Nanoparticles

International Journal of Electrochemical Science, 2014
In this study, a sensitive, label-free amperometric immunosensor based on graphene sheets-methylene blue nanocomposite and gold nanoparticles (GS-MB/GNPs) for the direct determination of chlorpyrifos residues was exploited. To fabricate the immunosensor,
Lu Qiao, Xiangyou Wang, Xia Sun
doaj   +1 more source