Yang, Xingsheng Liu, Xiaoxian Gu, Bing Liu, Haifeng Xiao, Rui Wang, Chongwen Wang, Shengqi
Published in
Microchimica Acta
An on-site detection strategy is reported based on dual-color [email protected] dot (QD)–integrated lateral flow immunoassay (LFA) strip to realize the quantitative and simultaneous detection of C-reactive protein (CRP) and procalcitonin (PCT) in serum. The dual-color [email protected] nanotags with monodispersity and excellent luminescence were synthesized using...
Ma, Wuwei Chang, Qigang Zhao, Jinhu Ye, Bang-Ce
Published in
Microchimica Acta
An electrochemical sensor has been developed based on ion imprinted polymer (IIP) and nanoporous gold (NPG) modified gold electrode (IIP/NPG/GE) for determination of arsenic ion (As3+) in different kinds of water. NPG with high conductivity, large specific surface area, and high biocompatibility was prepared by a green electrodeposition method. The...
Dadkhah, Sahar Mehdinia, Ali Jabbari, Ali Manbohi, Ahmad
Published in
Microchimica Acta
A dual-mode fluorescence and colorimetric biosensor based on nitrogen-boron co-doped carbon quantum dot (N-B CQDs) for rapid and sensitive detection of dopamine (DA) was developed. The quantum dot luminescent materials, N-B CQDs, were prepared by a one-step microwave-assisted method. The N-B CQDs were characterized using SEM, HR-TEM, XRD, FT-IR, Ra...
Podoynitsyn, Sergey N. Sorokina, Olga N. Nechaeva, Natalia L. Yanovich, Sergey V. Kurochkin, Ilya N.
Published in
Microchimica Acta
The surface-enhanced Raman spectroscopy (SERS) signal of a reporter on silver nanoparticles can be effectively gained by gradient electric field application. The external electric field initiates the dielectrophoresis of nanoparticles and their electrically induced dipole–dipole interaction. Owing to dielectrophoresis, the nanoparticles are concent...
Pu, Chenlu Zhao, Hongli Gu, Qinying Zheng, Yu Lan, Minbo
Published in
Microchimica Acta
A selectively modified porous metal/carbon nanocomposite was fabricated to enhance the enrichment of low-abundance phosphopeptides from biological samples. The carbon matrix derived from the metal-organic framework provides a suitable pore size to allow the diffusion of peptides, while the deliberately modified metal nanoparticles within the pores ...
Roushani, Mahmoud Rahmati, Zeinab Golchin, Mehdi Lotfi, Zinat Nemati, Mostafa
Published in
Microchimica Acta
A new ultrasensitive immunosensor is proposed based on the covalently attached anti-protein A antibody (IgY) on deposited gold nanoparticle (AuNP)-modified glassy carbon electrode (GCE) for the electrochemical measurement of Staphylococcus aureus (S. aureus). Chicken IgY as a capture antibody provides highly selective and specific binding to the ta...
Yu, Ling Dan Wen, Yu Xia Zhang, Xing Yue Li, Nian Bing Luo, Hong Qun
Published in
Microchimica Acta
[email protected] nanocomposite with superior photoelectrochemical (PEC) performance is used for the first time as a photoactivity material, and a signal-off PEC biosensing platform for miRNA detection has been successfully constructed. Firstly, the Cu2MoS4 nanosheets are synthesized by a hydrothermal method, and then, the homogeneous In2O3 nanoparticl...
Huang, Lingting Wang, Jun Wang, Qingshui Tang, Dianping Lin, Yao
Published in
Microchimica Acta
A paper-based visual fluorescence immunoassay is presented for the detection of matrix metalloproteinase-7 (MMP7) that is related to renal cancer. The method is based on the distance-dependent fluorescence quenching of CdTe quantum dots (QDs) on a nitrocellulose membrane by Ag+ following a sandwich-type immunoreaction on microtiter wells using silv...
Sheini, Azarmidokht
Published in
Microchimica Acta
A colorimetric assay was developed which has the capability of determining urea in biological samples. It is an origami paper-based sensor consisting of silver nanoparticles that were synthesized by using two different capping agents: thiomalic acid and maltol. The function of the assay relied on hydrolysis of urea to ammonia and carbon dioxide in ...
Amiri, Mojtaba Haji Shabani, Ali Mohammad Dadfarnia, Shayessteh Shokoufi, Nader Hajipour-Verdom, Behnam Sadjadi, Sodeh
Published in
Microchimica Acta
The first dual-modality highly intensive fluorescent and colorimetric nanoprobe for Fe3+ ions and histidine is reported. The carbon dots doped by nitrogen and sulfur (N,S-CDs) prepared by the one-pot hydrothermal method have an excitation/emission wavelength of 320/420 nm with 56% quantum yield. N,S-CDs exhibit strong visible fluorescence with high...
