PMID- 26075380
OWN - NLM
STAT- MEDLINE
DCOM- 20160106
LR  - 20191210
IS  - 1364-5528 (Electronic)
IS  - 0003-2654 (Linking)
VI  - 140
IP  - 15
DP  - 2015 Aug 7
TI  - A core-shell-structured molecularly imprinted polymer on upconverting 
      nanoparticles for selective and sensitive fluorescence sensing of sulfamethazine.
PG  - 5301-7
LID - 10.1039/c5an00579e [doi]
AB  - A core-shell structured molecularly imprinted polymer on upconverting 
      nanoparticles (UCNPs@MIP) was synthesized for the fluorescence (FL) sensing of 
      sulfamethazine (SMZ). Hexagonal UCNPs were synthesized by the solvothermal 
      method, then coated with a thin silica shell and modified with vinyl groups. 
      Finally, surface polymerization was initiated among the vinyl groups, the 
      functional monomers and cross-linking agents by the initiator. The MIP 
      synthesized by this procedure was anchored on the surface of UCNPs, possessed 
      better site accessibility and lower transfer resistance for the target molecule 
      compared to bulk imprinted materials. The obtained UCNPs@MIP showed good binding 
      capacity, fast response, high selectivity and specificity to the SMZ. The FL 
      intensity of the UCNPs@MIP decreased sensitively with the increasing 
      concentration of SMZ in the range of 50-700 ng mL(-1), the detection limit was 34 
      ng mL(-1) (S/N = 3). The UCNPs@MIP was successfully applied to the detection of 
      SMZ in chicken samples. Thanks to the unique near-infrared (NIR) excitation 
      nature of UCNPs, the chicken meat only needed some simple extraction procedures 
      before FL detection, no complex purifications were required. The average 
      recoveries ranged from 96.01% to 98.90%, with relative standard deviations (RSDs) 
      below 4.5%. This work offers a novel sensing system that combined the advantages 
      of upconverting nanotechnology and molecularly imprinted technology.
FAU - Tian, Jinghan
AU  - Tian J
AD  - College of Chemistry, Sichuan University, Chengdu 610064, P.R. China. 
      xiaodan@scu.edu.cn.
FAU - Bai, Jialei
AU  - Bai J
FAU - Peng, Yuan
AU  - Peng Y
FAU - Qie, Zhiwei
AU  - Qie Z
FAU - Zhao, Yufeng
AU  - Zhao Y
FAU - Ning, Baoan
AU  - Ning B
FAU - Xiao, Dan
AU  - Xiao D
FAU - Gao, Zhixian
AU  - Gao Z
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Analyst
JT  - The Analyst
JID - 0372652
RN  - 0 (Anti-Infective Agents)
RN  - 0 (Polymers)
RN  - 48U51W007F (Sulfamethazine)
SB  - IM
MH  - Animals
MH  - Anti-Infective Agents/*analysis
MH  - Chickens
MH  - Fluorescence
MH  - Limit of Detection
MH  - Meat/*analysis
MH  - *Molecular Imprinting/methods
MH  - Nanoparticles/*chemistry/ultrastructure
MH  - Polymers/*chemistry
MH  - *Spectrometry, Fluorescence/methods
MH  - Sulfamethazine/*analysis
EDAT- 2015/06/16 06:00
MHDA- 2016/01/07 06:00
CRDT- 2015/06/16 06:00
PHST- 2015/06/16 06:00 [entrez]
PHST- 2015/06/16 06:00 [pubmed]
PHST- 2016/01/07 06:00 [medline]
AID - 10.1039/c5an00579e [doi]
PST - ppublish
SO  - Analyst. 2015 Aug 7;140(15):5301-7. doi: 10.1039/c5an00579e.