MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: Wei FD, Xu GH, Wu YZ, Wang X, Yang J, Liu LP, Zhou P, Hu Q
Article Title: Molecularly imprinted polymers on dual-color quantum dots for simultaneous detection of norepinephrine and epinephrine.
Publication date: 2016
Journal: Sensors and Actuators B: Chemical
Volume: 229
Page numbers: 38-46.
DOI: 10.1016/j.snb.2016.01.113
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0925400516301149

Abstract: Simultaneous detection of multiple analytes has attracted considerable interest. In this paper, a simultaneous detection method of norepinephrine (NE) and epinephrine (E) was developed by anchoring molecularly imprinted polymers (MIPs) on the surfaces of two different color quantum dots (QDs). NE-QDs@MIP using NE as template and E-QDs@MIP using E as template were synthesized on the surfaces of CdTe@SiO2 and CdTe/CdS/ZnS/SiO2 QDs, respectively. The as-prepared two kinds of QDs@MIPs were characterized by Fourier transform infrared spectroscopy, transmission electron microscopy and fluorescence spectroscopy. The QDs@MIPs nanosensors had distinguished selectivity and high binding affinity to the corresponding template molecule. The mixture of NE-QDs@MIP and E-QDs@MIP could be excited at the same excitation wavelength and the simultaneous detection of NE and E was realized by monitoring the two different color fluorescence signals without spectral overlap. Under the optimal conditions, the fluorescence intensity of each kind of QDs@MIP decreased linearly with the increase of the concentration of the corresponding template molecule in the range of 0.08-20 μM. The limit of detection for NE and E were 9 and 12 nM (3σ/K), respectively
Template and target information: norepinephrine, NE, epinephrine, E
Author keywords: Simultaneous detection, Quantum dots, Molecularly imprinted polymers, Norepinephrine, epinephrine

  Plutonium periodic table mug  Scientist peptide mug  I shop perodically customisable tote bag

Molecules Special Issue call      Appeal for information


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner