Chip-NMR biosensor for detection and molecular analysis of cells.

Abstract:

:Rapid and accurate measurement of biomarkers in tissue and fluid samples is a major challenge in medicine. Here we report the development of a new, miniaturized diagnostic magnetic resonance (DMR) system for multiplexed, quantitative and rapid analysis. By using magnetic particles as a proximity sensor to amplify molecular interactions, the handheld DMR system can perform measurements on unprocessed biological samples. We show the capability of the DMR system by using it to detect bacteria with high sensitivity, identify small numbers of cells and analyze them on a molecular level in real time, and measure a series of protein biomarkers in parallel. The DMR technology shows promise as a robust and portable diagnostic device.

journal_name

Nat Med

journal_title

Nature medicine

authors

Lee H,Sun E,Ham D,Weissleder R

doi

10.1038/nm.1711

subject

Has Abstract

pub_date

2008-08-01 00:00:00

pages

869-74

issue

8

eissn

1078-8956

issn

1546-170X

pii

nm.1711

journal_volume

14

pub_type

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