PMID- 21331422
OWN - NLM
STAT- MEDLINE
DCOM- 20110810
LR  - 20131121
IS  - 2040-3372 (Electronic)
IS  - 2040-3364 (Linking)
VI  - 3
IP  - 4
DP  - 2011 Apr
TI  - Mesoporous silica-coated gold nanorods: towards sensitive colorimetric sensing of 
      ascorbic acid via target-induced silver overcoating.
PG  - 1756-9
LID - 10.1039/c0nr00863j [doi]
AB  - This article describes a nonaggregation-based colorimetric assay of ascorbic acid 
      by tailoring the optical properties of mesoporous silica-coated gold nanorods (MS 
      GNRs) via silver overcoating. The colorimetric measurement of ascorbic acid (AA) 
      concentration strongly relies on the fact that the blue shift effect of localized 
      surface plasmon resonance (LSPR) peak of MS GNRs is gradually enlarged with the 
      increase of AA amount. The limit of detection is determined to be 49 nM, which is 
      comparable to that of quantum dots (QDs)-based fluorimetric methods.
FAU - Wang, Guoqing
AU  - Wang G
AD  - Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of 
      Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China.
FAU - Chen, Zhaopeng
AU  - Chen Z
FAU - Chen, Lingxin
AU  - Chen L
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20110218
PL  - England
TA  - Nanoscale
JT  - Nanoscale
JID - 101525249
RN  - 3M4G523W1G (Silver)
RN  - 7440-57-5 (Gold)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - PQ6CK8PD0R (Ascorbic Acid)
SB  - IM
MH  - Ascorbic Acid/*analysis
MH  - Colorimetry/*instrumentation
MH  - Equipment Design
MH  - Equipment Failure Analysis
MH  - Gold/*chemistry
MH  - Nanotechnology/*instrumentation
MH  - Porosity
MH  - Silicon Dioxide/*chemistry
MH  - Silver/*chemistry
EDAT- 2011/02/19 06:00
MHDA- 2011/08/11 06:00
CRDT- 2011/02/19 06:00
PHST- 2011/02/19 06:00 [entrez]
PHST- 2011/02/19 06:00 [pubmed]
PHST- 2011/08/11 06:00 [medline]
AID - 10.1039/c0nr00863j [doi]
PST - ppublish
SO  - Nanoscale. 2011 Apr;3(4):1756-9. doi: 10.1039/c0nr00863j. Epub 2011 Feb 18.