A rapid and operator-safe powder approach for latent fingerprint detection using hydrophilic Fe3O4@SiO2-CdTe nanoparticles
A rapid and operator-safe powder approach for latent fingerprint detection using hydrophilic Fe3O4@SiO2-CdTe nanoparticles
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一种使用亲水性 Fe3O4@SiO2-CdTe 纳米颗粒进行潜指纹检测的快速且操作员安全的粉末方法
DOI:
10.1007/s11426-019-9460-0
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发表时间:
2019-04
期刊:
影响因子:
--
通讯作者:
Huang Xiaoyu
中科院分区:
文献类型:
--
作者:
Wang Zhaolei;Jiang Xue;Liu Wenbin;Lu Guolin;Huang Xiaoyu
A new kind of bifunctional magnetic-fluorescent nanoparticles (NPs) with abundant carboxyls on the surface has been prepared by covalently combining glutathiose (GSH)-modified CdTe quantum dots (QDs) with Fe3O4@SiO2NPs. The silica-coated Fe3O4NPs were functionalized with amino groups by (3-aminopropyl)triethoxysilane to provide Fe3O4@SiO2-NH2NPs, which was then chemically conjugated with GSH-modified CdTe QDs to form bifunctional magnetic-fluorescent NPs, Fe3O4@SiO2-NH-CO-CdTe-QDs NPs. The properties and morphologies of Fe3O4@SiO2-NH-CO-CdTe-QDs NPs were investigated by FTIR, Xray diffraction, transmission electron microscopy (TEM), absorption and fluorescence spectroscopy and vibrating sample magnetometry. TEM images display that Fe3O4@SiO2-NH-CO-CdTe-QDs NPs possess spherical core-shell structure with a uniform size about 50 nm. The bifunctional NPs were found to exhibit good magnetic and strong fluorescent properties favorable for their application in the detection of latent fingerprints. Furthermore, the carboxyls on the surface of NPs have good absorptions with water in air and the residues of fingerprints so as to not only avoid dust flying to protect the health of operators, but also improve the efficiency of detection.
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影响因子:
2.2
作者:
Sungwook Hong;Ingi Hong;Aleum Han;Jin Yi Seo;Juyoung Namgung
通讯作者:
Sungwook Hong;Ingi Hong;Aleum Han;Jin Yi Seo;Juyoung Namgung
DOI:
10.1007/s11426-017-9051-5
发表时间:
2017-05
期刊:
Science China Chemistry
影响因子:
--
作者:
Qianhui Wei;Xiaolong Li;Xin Du;Xueji Zhang;Meiqin Zhang
通讯作者:
Qianhui Wei;Xiaolong Li;Xin Du;Xueji Zhang;Meiqin Zhang
影响因子:
1.6
作者:
E. Menzel;Steve M. Savoy;Sydney J. Ulvick;Kwan H. Cheng;R. H. Murdock;M. Sudduth
通讯作者:
E. Menzel;Steve M. Savoy;Sydney J. Ulvick;Kwan H. Cheng;R. H. Murdock;M. Sudduth
DOI:
10.1007/s11426-018-9213-x
发表时间:
2018-02
期刊:
Science China Chemistry
影响因子:
--
作者:
J. S. Uppal;Xing-Fang Li;X. Le
通讯作者:
J. S. Uppal;Xing-Fang Li;X. Le
影响因子:
3.9
作者:
Gaponik, N;Radtchenko, IL;Rogach, AL
通讯作者:
Rogach, AL