نتایج جستجو برای: electrochemical nanobiosensors

تعداد نتایج: 51606  

2015
Hwi Jin Ko

Various biomaterials such as antibody, aptamer, enzyme, DNA and sensory receptor can be used for recognizing ligands by nanobiosensor. Especially, olfactory sensing elements with olfactory receptor are most promising one to develop the nanobiosensor with high performance because they can discriminate target molecules with high selectivity and also detect numerous odorant molecules, for example ...

Journal: :Analytical and Bioanalytical Chemistry 2008
Jeong-O Lee Hye-Mi So Eun-Kyoung Jeon Hyunju Chang Keehoon Won Yong Hwan Kim

Recent advances in nanotechnology have enabled the development of nanoscale sensors that outperform conventional biosensors. This review summarizes the nanoscale biosensors that use aptamers as molecular recognition elements. The advantages of aptamers over antibodies as sensors are highlighted. These advantages are especially apparent with electrical sensors such as electrochemical sensors or ...

Journal: :ACS nano 2009
Fumiaki N Ishikawa Hsiao-Kang Chang Marco Curreli Hsiang-I Liao C Anders Olson Po-Chiang Chen Rui Zhang Richard W Roberts Ren Sun Richard J Cote Mark E Thompson Chongwu Zhou

Antibody mimic proteins (AMPs) are polypeptides that bind to their target analytes with high affinity and specificity, just like conventional antibodies, but are much smaller in size (2-5 nm, less than 10 kDa). In this report, we describe the first application of AMP in the field of nanobiosensors. In(2)O(3) nanowire based biosensors have been configured with an AMP (Fibronectin, Fn) to detect ...

2011
Andrea Barucci Simone Berneschi Franco Cosi Gualtiero Nunzi Conti Stefano Pelli Franco Quercioli Silvia Soria Giancarlo C. Righini

Optical sensors have a large impact in the fields of life science research, drug discovery and medical diagnostics. The recent advances in nanotechnology and photonics have led to a new generation of nanotools, capable of probing even the single cell: it has already been demonstrated that nanobiosensors can detect biochemical targets and proteins inside living single cells. Here we provide a br...

2002
Allen J. Bard Fu-Ren F. Fan Juhyoun Kwak

The technlque of scannlng electrochemical mlcroscopy (SECM) Is descrlbed. I n thls technlque the electrolysls current that flows as an ultramicroelectrode tlp (diameter ca. 10 gm) Immersed In a soiutlon Is moved above a substrate surface is used to characterize processes and structural features of the substrate. Modes of Operation consldered Include collectlon modes, where products electrogener...

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