Du, Qianqian Zhang, Xiaodan Cao, Haiyan Huang, Yuming
Published in
Microchimica Acta
The preparation of aggregation-induced emission-type copper nanoclusters (CuNCs) capped with polydopamine (PDA) is described. PDA was formed via in situ polymerization of dopamine in the presence of alkaline polyethylenimine. The PDA-capped CuNCs (PDA-CuNCs) exhibit orange fluorescence with maximal emission at 580 nm upon excitation at 340 nm, a st...
Wang, Baogang Liang, Zhu Tan, Hui Duan, Wenmeng Luo, Mina
Published in
Microchimica Acta
Carbon dots (CDs) emitting red fluorescence (610 nm) were synthesized by solvent thermal treatment of p-phenylenediamine in toluene. Upon 440 nm excitation, quercetin (QCT) alone endowed slight effects on the red fluorescence of CDs. Once Zn2+ was further introduced, the QCT-Zn2+ complex was quickly formed. This complex absorbs excitation light and...
Xie, Tao Zhong, Xufeng Liu, Zhengjie Xie, Chenggen
Published in
Microchimica Acta
A fluorometric assay was developed for the determination of copper(II) ion based on its quenching effect on the green fluorescent probe of SiO2-anchored CdS nanocrystals (SiO2/CdS NCs). The fluorescent probe was prepared by a surface ion-directing strategy for homogeneous precipitation of CdS NCs onto the carboxyl-capped SiO2 core surfaces. In comp...
Le, Dinh-Vu Jiang, Jian-Hui
Published in
Microchimica Acta
A fluorescence method is described for the determination of the activity of O6-methylguanine-DNA methyltransferase (MGMT). It is based on the activation of restriction endonuclease PvuII and the adsorbing a fluorophore-labelled DNA onto the surface of graphene oxide (GO). MGMT activity removes the methyl group from O6-methylguanine (O6MeG) in the f...
Chen, Yishi Yang, Yeling Xie, Qin Lai, Qizhen Ji, Xinghu He, Zhike
Published in
Microchimica Acta
A homogeneous fluorescent immunoassay is described for the determination of alpha fetoprotein (AFP) relying on the interaction between copper ion complex and quantum dots (QDs). The copper ion complex-labelled antibody can be employed as a quencher of fluorescence of QDs and capture probe of AFP in homogeneous solution. The labelled antibody is mix...
Zhang, Yue Li, Si Ma, Xiao-Tong He, Xi-Wen Li, Wen-You Zhang, Yu-Kui
Published in
Microchimica Acta
A carbon dots-embedded epitope imprinted polymer (C-MIP) was fabricated for targeted fluorescence imaging of cervical cancer by specifically recognizing the epidermal growth factor receptor (EGFR). The core-shell C-MIP was prepared by a reverse microemulsion polymerization method. This method used silica nanoparticles embedded with carbon dots as c...
Yu, Qianru He, Chuxian Li, Qian Zhou, You Duan, Nuo Wu, Shijia
Published in
Microchimica Acta
This paper describes the fabrication of an imprinted fluorescent nanoprobe based on SiO2-coated NaYF4: Yb, Er upconversion nanoparticles (UCNP) encapsulated with a molecularly imprinted polymer (MIP) for determination of acetamiprid. The fluorescent MIP nanoprobe was prepared using UCNP as the material for fluorescence signal readout, acetamiprid a...
He, Deyun Wu, Zhengzong Cui, Bo Xu, Enbo
Published in
Microchimica Acta
An aptamer-based assay is presented for the determination of fumonisin B1 (FB1). It is bimodal in that both surface-enhanced Raman spectroscopy (SERS) and fluorometry are applied for quantitation. It makes use of platinum-coated gold nanorod (AuNR) and DNA sequences. The complementary DNA of aptamer (cDNA) against FB1 is immobilized on the surface ...
Li, Xingshu Park, Eun-Yeong Kang, Youngnam Kwon, Nahyun Yang, Mengyao Lee, Seunghyun Kim, Won Jong Kim, Chulhong Yoon, Juyoung
Phototheranostic nanoplatforms are of particular interest for cancer diagnosis and imaging-guided therapy. Herein, we develop a supramolecular approach to fabricate a nanostructured phototheranostic agent through the direct self-assembly of two water-soluble phthalocyanine derivatives, PcS4 and PcN4. The nature of the molecular recognition between ...
Wang, Hai-Bo Bai, Hong-Yu Wang, Ya-Shu Gan, Tian Liu, Yan-Ming
Published in
Microchimica Acta
A highly stable copper nanoclusters (CuNC) carrying 4-chlorothiophenol as a protective ligand is described. They display self-assembly-induced emission with excitation/emission maxima at 330/605 nm even in neutral or alkaline aqueous environment. The fluorescence of these CuNC is quenched by Hg(II). Quenching is mainly ascribed to the formation of ...
