Results 91 to 100 of about 20,776 (229)

Automated-immunosensor with centrifugal fluid valves for salivary cortisol measurement

open access: yesSensing and Bio-Sensing Research, 2014
Point-of-care measurement of the stress hormone cortisol will greatly facilitate the timely diagnosis and management of stress-related disorders. We describe an automated salivary cortisol immunosensor, incorporating centrifugal fluid valves and a ...
Masaki Yamaguchi   +4 more
doaj   +1 more source

Detection of small molecules with a flow immunosensor [PDF]

open access: yes
We describe the development of an easy-to-use sensor with widespread applications for detecting small molecules. The flow immunosensor can analyze discrete samples in under one minute or continuously monitor a flowing stream for the presence of specific ...
Kusterbeck, Anne W., Ligler, Frances S.
core   +1 more source

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

open access: yes, 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   +6 more
core   +2 more sources

High-overtone Bulk-Acoustic Resonator gravimetric sensitivity: towards wideband acoustic spectroscopy

open access: yes, 2015
In the context of direct detection sensors with compact dimensions, we investigate the gravimetric sensitivity of High-overtone Bulk Acoustic Resonators, through modeling of their acoustic characteristics and experiment. The high frequency characterizing
Ballandras, S.   +5 more
core   +1 more source

Potential Electrochemical Coronary Artery Disease Diagnosis Based on A Periostin Immunoassay

open access: yesInternational Journal of Electrochemical Science, 2017
The preparation of a sensitive amperometric immunosensor for periostin was achieved. The synthesis of golg nanoprobe was carried out through depositing the gold nanoparticles in situ on silica nanophere functionalized by polydopamine, which was followed ...
Xiu-Feng Zheng   +5 more
doaj   +1 more source

Epitaxial graphene immunosensor for human chorionic gonadotropin [PDF]

open access: yes, 2014
Human chorionic gonadotropin (hCG), a 37 kDa glycoprotein hormone, is a key diagnostic marker of pregnancy and has been cited as an important biomarker in relation to cancerous tumors found in the prostate, ovaries and bladder.A novel chemically-modified
Deya Gonzalez   +3 more
core   +1 more source

Development of Electrochemical Sensor for Coronary Heart Disease Biomarker MMP-9 Analysis

open access: yesInternational Journal of Electrochemical Science, 2017
This work explored the preparation of a sensitive amperometric immunosensor for MMP-9. The in situ deposition of Au nanoparticles (Au NPs) on the polydopamine functionalized silica nanosphere and subsequent signal antibodies tagging were carried out for ...
Shenghong Jing   +4 more
doaj   +1 more source

Electrochemical Detecting Lung Cancer-Associated Antigen Based on Graphene-Gold Nanocomposite

open access: yesMolecules, 2017
Using a Au nanoparticle/reduced graphene oxide composite (AuNP-RGO), a signal-enhanced electrochemical immunosensor without label was created to detect neuron-specific enolase (NSE).
Zheng Wei   +4 more
doaj   +1 more source

Ultra-sensitive immunosensing of snake venom by functionalized Sm-Co doped antimony-tungstate

open access: yesApplied Microbiology and Biotechnology
Snake venom has long-term physiological effects on survivor’s life. An electrochemical immunosensor based on samarium-cobalt-doped antimony tungstate (Sb2WO4@Sm-Co) is developed via a solvothermal method to detect snake venom antigens (SVA).
Rimsha Batool   +6 more
doaj   +1 more source

A Novel Carbon Nanofibers Grown on Glass Microballoons Immunosensor: A Tool for Early Diagnosis of Malaria [PDF]

open access: yes, 2014
This paper presents a novel method for direct detection of Plasmodium falciparum histidine rich protein-2 (PfHRP-2) antigen using carbon nanofiber (CNF) forests grown on glass microballoons (NMBs).
Adeyabeba Abera   +31 more
core   +1 more source

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