Paper Info
Title
Metal Nanoparticles/Porous Silicon Microcavity Enhanced Surface Plasmon Resonance Fluorescence for the Detection of DNA.
Abstract
A porous silicon microcavity (PSiMC) with resonant peak wavelength of 635 nm was fabricated by electrochemical etching. Metal nanoparticles (NPs)/PSiMC enhanced fluorescence substrates were prepared by the electrostatic adherence of Au NPs that were distributed in PSiMC. The Au NPs/PSiMC device was used to characterize the target DNA immobilization and hybridization with its complementary DNA sequences marked with Rhodamine red (RRA). Fluorescence enhancement was observed on the Au NPs/PSiMC device substrate; and the minimum detection concentration of DNA ran up to 10 pM. The surface plasmon resonance (SPR) of the MC substrate; which is so well-positioned to improve fluorescence enhancement rather the fluorescence enhancement of the high reflection band of the Bragg reflector; would welcome such a highly sensitive in biosensor.
Year
DOI
Venue
2018
10.3390/s18020661
SENSORS
Keywords
Field
DocType
porous silicon microcavity,gold nanoparticles,DNA,fluorescence
Analytical chemistry,Surface plasmon resonance,Rhodamine,Porous silicon,Colloidal gold,Fluorescence,Distributed Bragg reflector,Engineering,Biosensor,Optoelectronics,Silicon
Journal
Volume
Issue
ISSN
18
2.0
1424-8220
Citations 
PageRank 
References 
0
0.34
3
Authors
2
Name
Order
Citations
PageRank
Jiajia Wang100.34
Zhenhong Jia22915.13