Results 21 to 30 of about 6,397 (186)

The potentiality of the functionalized nitrogen and thiol-doped graphene quantum dots (GQDs-N-S) to stabilize the antibodies in the designing of human chorionic gonadotropin immunosensor [PDF]

Nanochemistry Research, 2019
In this study, for the first time, a simple immunosensor for ultrasensitive recognition of Human Chorionic Gonadotropin (hCG) in serum samples was fabricated by exploiting a simple approach.
Mahmoud Roushani, Akram Valipour, Mehrangiz Bahrami   +2 more
doaj   +1 more source

An Exfoliated Graphite-Based Electrochemical Immunosensor on a Dendrimer/Carbon Nanodot Platform for the Detection of Carcinoembryonic Antigen Cancer Biomarker

Biosensors, 2019
An electrochemical immunosensor for the quantification of carcinoembryonic antigen (CEA) using a nanocomposite of polypropylene imine dendrimer (PPI) and carbon nanodots (CNDTs) on an exfoliated graphite electrode (EG) is reported.
Azeez O. Idris, Nonhlangabezo Mabuba, Omotayo A. Arotiba   +2 more
doaj   +1 more source

A Bifunctional Nanosilver-Reduced Graphene Oxide Nanocomposite for Label-Free Electrochemical Immunosensing

Frontiers in Chemistry, 2021
A bi-functional material based on silver nanoparticles (AgNPs)-reduced graphene oxide (rGO) composite for both electrode modification and signal generation is successfully synthesized for use in the construction of a label-free electrochemical ...
Supakeit Chanarsa, Supakeit Chanarsa, Jaroon Jakmunee, Jaroon Jakmunee, Kontad Ounnunkad, Kontad Ounnunkad, Kontad Ounnunkad   +6 more
doaj   +1 more source

Impedimetric Label-Free Immunosensor on Disposable Modified Screen-Printed Electrodes for Ochratoxin A

Biosensors, 2016
An impedimetric label-free immunosensor on disposable screen-printed carbon electrodes (SPCE) for quantitative determination of Ochratoxin A (OTA) has been developed.
Francesca Malvano, Donatella Albanese, Alessio Crescitelli, Roberto Pilloton, Emanuela Esposito   +4 more
doaj   +1 more source

Ultrasensitive Immunosensor for Aflatoxin B1 Detection Based on Screen-Printed Carbon Electrode Modified by Ferrocene @Multi-Walled Carbon Nanotubes

International Journal of Electrochemical Science, 2019
An electrochemical immunosensor for the ultrasensitive detection of aflatoxin B1 (AFB1) in agricultural products was developed. Ferrocene (Fc), with favourable oxidation-reduction properties, is widely used in chemically modified electrodes. Multi-walled
Hui Zhang, Zhaoqiang Shi, Shuting Cheng, Qingqing Yang, Xia Sun, Yemin Guo   +5 more
doaj   +1 more source

Preparation of Immunosensor Based on the SiO2- Au composite for Lung Cancer-Associated Antigen Determination

International Journal of Electrochemical Science, 2016
A sensitive immunosensor with gold nanoprobe for the detection of carcinoembryonic antigen (CEA) was synthesized. The immunosensor was prepared by the covalent immobilization of antibodies on Au NPs-PDA-silica/GCE which was firstly prepared by in situ ...
Xiao Li, Xiaoju Zhang, Zheng Wang, Qianqian Zhang, Weixia Xuan, Lijun Ma   +5 more
doaj   +1 more source

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Detecting age-related changes in faecal vasoactive intestinal polypeptide using a 3D-printed electrochemical immunosensor

Biosensors and Bioelectronics: X
Vasoactive intestinal polypeptide (VIP) is a 28-amino acid neuropeptide with a multitude of diverse physiological functions, including vasodilation, immune modulation, and most notable gastrointestinal regulation.
Khalil K. Hussain, Chloe Miller, Mark Yeoman, Bhavik Anil Patel   +3 more
doaj   +1 more source

A Label-Free Immunosensor Based on Graphene Oxide/Fe₃O₄/Prussian Blue Nanocomposites for the Electrochemical Determination of HBsAg

Biosensors, 2020
In this article, a highly sensitive label-free immunosensor based on a graphene oxide (GO)/Fe3O4/Prussian blue (PB) nanocomposite modified electrode was developed for the determination of human hepatitis B surface antigen (HBsAg). In this electrochemical
Shanshan Wei, Haolin Xiao, Liangli Cao, Zhencheng Chen   +3 more
doaj   +1 more source

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

Advanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib, Shan Jiang, Joyce ZX Lee, CW Lim, HL Yeung, Nicki YH Leung, Patrick SC Leung, Ting F Leung, Christine YY Wai   +8 more
wiley   +1 more source