Electrochemical DNA sensors
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TLDR
Electrochemistry-based sensors offer sensitivity, selectivity and low cost for the detection of selected DNA sequences or mutated genes associated with human disease.Abstract:
Electrochemistry-based sensors offer sensitivity, selectivity and low cost for the detection of selected DNA sequences or mutated genes associated with human disease. DNA-based electrochemical sensors exploit a range of different chemistries, but all take advantage of nanoscale interactions between the target in solution, the recognition layer and a solid electrode surface. Numerous approaches to electrochemical detection have been developed, including direct electrochemistry of DNA, electrochemistry at polymer-modified electrodes, electrochemistry of DNA-specific redox reporters, electrochemical amplifications with nanoparticles, and electrochemical devices based on DNA-mediated charge transport chemistry.read more
Citations
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Journal ArticleDOI
Nanostructures in Biodiagnostics
Nathaniel L. Rosi,Chad A. Mirkin +1 more
TL;DR: Nathaniel L. Rosi focuses on the rational assembly of DNA-modified nanostructures into larger-scale materials and their roles in biodiagnostic screening for nucleic acids.
Journal ArticleDOI
Gold nanoparticles in chemical and biological sensing.
TL;DR: The advent of AuNP as a sensory element provided a broad spectrum of innovative approaches for the detection of metal ions, small molecules, proteins, nucleic acids, malignant cells, etc. in a rapid and efficient manner.
Journal ArticleDOI
Graphene Based Electrochemical Sensors and Biosensors: A Review
TL;DR: Graphene has received increasing attention due to its unique physicochemical properties (high surface area, excellent conductivity, high mechanical strength, and ease of functionalization and mass production).
Journal ArticleDOI
Integrated Nanoparticle–Biomolecule Hybrid Systems: Synthesis, Properties, and Applications
Eugenii Katz,Itamar Willner +1 more
TL;DR: This review describes recent advances in the synthesis of biomolecule-nanoparticle/nanorod hybrid systems and the application of such assemblies in the generation of 2D and 3D ordered structures in solutions and on surfaces.
Journal ArticleDOI
An integrated semiconductor device enabling non-optical genome sequencing
Jonathan M. Rothberg,Wolfgang Hinz,Todd Rearick,Jonathan Schultz,William J. Mileski,Melville Davey,John H. Leamon,Kim L. Johnson,Mark James Milgrew,Matthew D. Edwards,Jeremy Hoon,Jan Fredrik Simons,David Marran,Jason W. Myers,John F. Davidson,Annika Branting,John Nobile,Bernard P. Puc,David Light,Travis A. Clark,Martin Huber,Jeffrey T. Branciforte,Isaac B. Stoner,Simon Cawley,Michael R. Lyons,Yutao Fu,Nils Homer,Marina Sedova,Xin Miao,Brian Reed,Jeffrey Sabina,Erika Feierstein,Michelle Schorn,Mohammad Alanjary,Eileen T. Dimalanta,Devin Dressman,Rachel Kasinskas,Tanya Sokolsky,Jacqueline A. Fidanza,Eugeni Namsaraev,Kevin McKernan,Alan Williams,G. Thomas Roth,James Bustillo +43 more
TL;DR: A DNA sequencing technology in which scalable, low-cost semiconductor manufacturing techniques are used to make an integrated circuit able to directly perform non-optical DNA sequencing of genomes, showing its robustness and scalability by producing ion chips with up to 10 times as many sensors and sequencing a human genome.
References
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Scanometric DNA Array Detection with Nanoparticle Probes
TL;DR: When coupled with a signal amplification method based on nanoparticle-promoted reduction of silver(I), the sensitivity of this scanometric array detection system exceeds that of the analogous fluorophore system by two orders of magnitude.
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Array-based electrical detection of DNA with nanoparticle probes
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