NaYF4:Yb3+-Er3+ nanocrystals/P(NIPAM-co-RhBHA) core-shell nanogels: Preparation, structure, multi stimuli-responsive behaviors and application as detector for Hg2+ ions

被引：9

作者：

Li, Tan ^{[1
]}

Zhou, Wen ^{[1
]}

Song, Qiusheng ^{[1
]}

Fang, Wenchao ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Chem & Chem Engn, Hefei 230009, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2015年 / 302卷

关键词：

NaYF4:Yb3+-Er3+ nanocrystals; RhBHA; Stimuli-responsive; Core-shell; He2+ ions; FRET; SELECTIVE FLUORESCENT SENSOR; RESONANCE ENERGY-TRANSFER; MERCURY(II) DETECTION; FRET SYSTEM; CONVERSION; DNA; NANOPARTICLES; CHEMOSENSORS; LUMINESCENCE; FABRICATION;

D O I：

10.1016/j.jphotochem.2015.01.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present study, we report a novel core-shell nanogels of NaYF4:Yb3+-Er3+ nanocrystals/P(NIPAM-co-RhBHA) based on up-conversion excitation and fluorescence resonance energy transfer (FRET). Firstly, up-conversion NaYF4:Yb3+-Er3+ nanocrystals were synthesized by hydrothermal method with EDTA, Er(NO3)(3), Yb(NO3)(3), Y(NO3)(3) and NaF as raw materials. Then, the nanocrystals were decorated with MPS. Finally, core-shell nanogels with thermo-responsive shells were fabricated via free radical emulsion polymerization of N-isopropylacrylamide (NIPAM) and N-acrylyl-N'-rhodamine B acylhydrazine thiourea (RhBHA) dye monomers. Their structure, stimuli-responsive behaviors were investigated via TEM, FTIR, XRD, DSC, UV-vis and PL in detail. The results suggest that the nanogels can response to multi-stimuli, such as pH value, temperature, metal ions, and they can be used as sensitive detector for Hg2+ ions. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：51 / 58

页数：8

共 39 条

[21] Study on the novel rare-earth nanocrystals/PNIPAM complex hydrogels prepared by surface-initiated living radical polymerization [J].

Song, Qiusheng ;

Yang, Yang ;

Gao, Kang ;

Ma, Haihong .

JOURNAL OF LUMINESCENCE, 2013, 136 :437-443

[22] Use of NIR light and upconversion phosphors in light-curable polymers [J].

Stepuk, Alexander ;

Mohn, Dirk ;

Grass, Robert N. ;

Zehnder, Matthias ;

Kraemer, Karl W. ;

Pelle, Fabienne ;

Ferrier, Alban ;

Stark, Wendelin J. .

DENTAL MATERIALS, 2012, 28 (03) :304-311

[23] Detection of melamine based on the fluorescence resonance energy transfer between CdTe QDs and Rhodamine B [J].

Tang, Guangchao ;

Du, Liping ;

Su, Xingguang .

FOOD CHEMISTRY, 2013, 141 (04) :4060-4065

[24]

Valeur B., 2001, MOL FLUORESCENCE PRI

[25] A Stimuli-Responsive Nanogel-Based Sensitive and Selective Fluorescent Sensor for Cr 3 with Thermo-Induced Tunable Detection Sensitivity [J].

Wan, Xuejuan ;

Liu, Haiyang ;

Yao, Shen ;

Liu, Tianqi ;

Yao, Youwei .

MACROMOLECULAR RAPID COMMUNICATIONS, 2014, 35 (03) :323-329

[26] Thermoresponsive Core Cross-Linked Micelles for Selective Ratiometric Fluorescent Detection of Hg2+ Ions [J].

Wan, Xuejuan ;

Liu, Tao ;

Liu, Shiyong .

LANGMUIR, 2011, 27 (07) :4082-4090

[27] Multifunctional mesoporous material for detection, adsorption and removal of Hg2+ in aqueous solution [J].

Wang, Chan ;

Tao, Shengyang ;

Wei, Wei ;

Meng, Changgong ;

Liu, Fengyu ;

Han, Mei .

JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (22) :4635-4641

[28] Upconversion multicolor fine-tuning:: Visible to near-infrared emission from lanthanide-doped NaYF4 nanoparticles [J].

Wang, Feng ;

Liu, Xiaogang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (17) :5642-+

[29] Highly sensitive and selective detection of Hg2+ in aqueous solution with mercury-specific DNA and Sybr Green I [J].

Wang, Jing ;

Liu, Bin .

CHEMICAL COMMUNICATIONS, 2008, (39) :4759-4761

[30] Amplified Fluorescence Turn-On Assay for Mercury(II) Detection and Quantification based on Conjugated Polymer and Silica Nanoparticles [J].

Wang, Yusong ;

Liu, Bin .

MACROMOLECULAR RAPID COMMUNICATIONS, 2009, 30 (07) :498-503

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