Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 14, Pages 11013-11017Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am5035158
Keywords
hydrogen sulfide; lanthanoids; luminescence; nanoparticles; sensors
Funding
- National Basic Research Program of China [2012CB933301]
- National Natural Science Foundation of China [61274018, 21174064, 21171098]
- Ministry of Education of China [IRT1148]
- Program for New Century Excellent Talents in University [NCET-12-0740]
- Natural Science Foundation of Jiangsu Province of China [BK20130038]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Science Foundation of Nanjing University of Posts and Telecommunications [NY212030]
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Merocyanines adsorbed into the mesopores of mSiO(2), shell of NaYF4: 20% Yb, 2% Er, 0.2% Tm nanocrystals are demonstrated as ratiometric upconversion luminescence (UCL) probe for highly selective detection of HS- in living cells through inhibition of energy transfer from the UCL of the nanocrystals to the absorbance of the merocyanines. The UCL probe has been used for ratiometric sensing of H2S with high sensitivity and selectivity.
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