Results 41 to 50 of about 2,208,157 (360)

An electrochemical DNA biosensor fabricated from graphene decorated with graphitic nanospheres

open access: yesNanotechnology, 2020
Graphene decorated with graphitic nanospheres functionalized with pyrene butyric acid (PBA) is used for the first time to fabricate a DNA biosensor.
Raja Zaidatul Akhmar Raja Jamaluddin   +3 more
semanticscholar   +1 more source

A Graphene-Based Biosensing Platform Based on Regulated Release of an Aptameric DNA Biosensor

open access: yesSensors, 2015
A novel biosensing platform was developed by integrating an aptamer-based DNA biosensor with graphene oxide (GO) for rapid and facile detection of adenosine triphosphate (ATP, as a model target).
Yu Mao   +4 more
doaj   +1 more source

Silicon-on-insulator microring resonators for photonic biosensing applications [PDF]

open access: yes, 2013
Silicon-on-insulator microring resonators have proven to be an excellent platform for label-free nanophotonic biosensors. The high index contrast of the silicon-on-insulator waveguides allows for fabrication of micrometer size sensors.
Bienstman, Peter   +3 more
core   +1 more source

A cellulose-based bioassay for the colorimetric detection of pathogen DNA [PDF]

open access: yes, 2014
Cellulose-paper-based colorimetric bioassays may be used at the point of sampling without sophisticated equipment. This study reports the development of a colorimetric bioassay based on cellulose that can detect pathogen DNA.
Goyal, Madhu   +3 more
core   +1 more source

Highly Sensitive Detection of Campylobacter spp. in Chicken Meat using a Silica Nanoparticle Enhanced Dot Blot DNA Biosensor

open access: yesbioRxiv, 2020
Paper-based DNA biosensors are powerful tools in point-of-care diagnostics since they are affordable, portable, user-friendly, rapid and robust. However, their sensitivity is not always as high as required to enable DNA quantification.
Priya Vizzini   +6 more
semanticscholar   +1 more source

Electrochemical detection of the toxic dinoflagellate Alexandrium ostenfeldii with a DNA-biosensor [PDF]

open access: yes, 2005
The steady rise of observations of harmful or toxic algal blooms throughout the world in the past decades constitute a menace for coastal ecosystems and human interests.
Huljic, S.   +3 more
core   +1 more source

Recent Advances in Optical DNA Biosensors Technology

open access: yesCHIMIA, 2005
Recent advances in nucleic acids-based biosensors have led to the development of DNA biosensors for DNA hybridisation detection and for nucleic acid–ligand binding studies.
Bambang Kuswandi   +3 more
doaj   +1 more source

Au nanorods/ g-C3N4 composite based biosensor for electrochemical detection of chronic lymphocytic leukemia [PDF]

open access: yesNanomedicine Research Journal, 2020
Objective: With the increasing incidence of cancer and the dramatic effect of early detection on treatment and increase patient's life, many efforts have been devoted to making sensitive diagnosis systems.
Mohadeseh Afzali   +2 more
doaj   +1 more source

Electrochemical DNA biosensor for the detection of trichoderma harzianum based on agold electrode modified with a composite membrane made from an ionic liquid, ZnO nanoparticles and chitosan, and by using acridine orange as a redox indicator. [PDF]

open access: yes, 2010
An electrochemical DNA biosensor was developed that is based on a gold electrode modified with a nanocomposite membrane made from an ionic liquid, ZnO nanoparticles and chitosan. A single-stranded DNA probe was immobilized on this electrode.
Abu Bakar, Fatimah   +4 more
core   +1 more source

In situ reduction of gold nanoparticles-decorated MXenes-based electrochemical sensing platform for KRAS gene detection

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
In this work, gold nanoparticles@Ti3C2 MXenes nanocomposites with excellent properties were combined with toehold-mediated DNA strand displacement reaction to construct an electrochemical circulating tumor DNA biosensor.
Xiongtao Yu, Silan Bai, Lishi Wang
doaj   +1 more source

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