نتایج جستجو برای: biosensors

تعداد نتایج: 9652  

2018

In this paper, I would like to present basic characterization of Electro Chemical Biosensor. Biosensors are versatile , they are Amperometric and Immuno biosensors. In this paper the cyclic voltametry technique is used to detect the pathogens in analyte. The resultant graph is between voltage and current.The amperometric biosensor gives current as output which judges the pathogen present in ana...

2012
Yan Zhou Cheng-Wei Chiu Hong Liang

The capabilities of biosensors for bio-environmental monitoring have profound influences on medical, pharmaceutical, and environmental applications. This paper provides an overview on the background and applications of the state-of-the-art biosensors. Different types of biosensors are summarized and sensing mechanisms are discussed. A review of organic materials used in biosensors is given. Spe...

Journal: :Scientific American 1991
J S Schultz

2015
Oleksandr O Soldatkin Margaryta K Shelyakina Valentyna N Arkhypova Esin Soy Salih Kaan Kirdeciler Berna Ozansoy Kasap Florence Lagarde Nicole Jaffrezic-Renault Burcu Akata Kurç Alexei P Soldatkin Sergei V Dzyadevych

A number of potentiometric biosensors based on coimmobilization of enzymes with different types of zeolite on pH-ion-sensitive field-effect transistor (ISFET) have been developed. Their working characteristics have been determined and compared. It was shown that clinoptilolite and zeolite Beta polymorph A (BEA) are more promising for creating biosensors than zeolite A. Changing the concentratio...

2017
Gizem Ertürk Bo Mattiasson

Capacitive biosensors belong to the group of affinity biosensors that operate by registering direct binding between the sensor surface and the target molecule. This type of biosensors measures the changes in dielectric properties and/or thickness of the dielectric layer at the electrolyte/electrode interface. Capacitive biosensors have so far been successfully used for detection of proteins, nu...

Journal: :The Analyst 2013
Jianling Wang Guihua Chen Hui Jiang Zhiyong Li Xuemei Wang

Recently, a growing amount of attention has been focused on the utility of biosensors for biomedical applications. Combined with nanomaterials and nanostructures, nano-scaled biosensors are installed for biomedical applications, such as pathogenic bacteria monitoring, virus recognition, disease biomarker detection, among others. These nano-biosensors offer a number of advantages and in many res...

Journal: :nanomedicine research journal 0
ali gheibi textile engineering department, textile excellence & research centers, amirkabir university of technology, tehran, iran kamyar khoshnevisan biosensor research center, endocrinology and metabolism molecular-cellular sciences institute, tehran university of medical sciences, tehran, iran najmeh ketabchi department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences mohammad ali derakhshan department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences arman amani babadi nanotechnology and catalysis research centre (nanocat), university of malaya, ips building, 50603, kuala lumpur, malaysia

among the synthetic polymers, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (phbv) microbial polyester is one of the biocompatible and biodegradable copolymers in the nanomedicine scope. phbv has key points and suitable properties to support cellular adhesion, proliferation and differentiation of nanofibers. nanofibers are noticeably employed in order to enhance the performance of biomaterials,...

2010
Kazuki Tainaka Reiko Sakaguchi Hironori Hayashi Shun Nakano Fong Fong Liew Takashi Morii

Fluorescent biosensors to detect the bona fide events of biologically important molecules in living cells are increasingly demanded in the field of molecular cell biology. Recent advances in the development of fluorescent biosensors have made an outstanding contribution to elucidating not only the roles of individual biomolecules, but also the dynamic intracellular relationships between these m...

2010
Gamal A. E. Mostafa

Biosensors have been developed for the detection of pesticides using integrated enzymes, antibodies, cell and DNA-based biosensors. Enzymatic determination of pesticides is most often based on inhibition of the activity of selected enzymes such as cholinesterase, acid phosphatase, ascorbate oxidase, acetolactate synthase and aldehyde dehydrogenase. Enzymatic Biosensors were developed using vari...

2009
S. Ďaďo

In vitro neurotoxicity testing and toxicity effect quantification plays an important role in many disciplines of biomedicine as an alternative to in vivo methods. The principle of the majority of in vitro methods corresponds to the basic concept of biosensors. i.e. measured quantity is by means of biological sensing element transformed to physical quantity easily measurable by electrical method...

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