MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Liu CB, Song ZL, Pan JM, Wei X, Gao L, Yan YS, Li LZ, Wang JA, Chen R, Dai JD, Yu P
Article Title: Molecular Imprinting in Fluorescent Particle Stabilized Pickering Emulsion for Selective and Sensitive Optosensing of λ-Cyhalothrin.
Publication date: 2013
Journal: Journal of Physical Chemistry C
Volume: 117
Issue: (20)
Page numbers: 10445-10453.
DOI: 10.1021/jp4004505

Abstract: A red luminescent europium (Eu) complex covalently modified mesoporous silica spheres (mSiO2-Eu(TTA)3Bpc; TTA, 2-thenoyltrifluoroacetone; Bpc, 2,2'-bipyridine-4,4'-dicarboxylic acid) were designed. Then the molecularly imprinted polymers combined with fluorescence sensor were first prepared via mSiO2-Eu(TTA)3Bpc stabilized Pickering emulsion polymerization, and were further applied for selective and sensitive optosensing of λ-cyhalothrin (LC). The as-prepared mSiO2-Eu(TTA)3Bpc@MIPs were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and elemental analyzer, the results demonstrated the formation of monodisperse and uniform-sized LC-imprinted spheres. Meanwhile, fluorescence spectroscopy was used to evaluation of optical stability, effect of pH, and selective and sensitive determination of LC. The fluorescent intensity of mSiO2-Eu(TTA)3Bpc@MIPs decreased in the first 5 days and then kept stable for nearly a month. Under optical conditions, mSiO2-Eu(TTA)3Bpc@MIPs were successfully applied to selectively and sensitively detect LC in water, and a linear relationship could be obtained covering the concentration range of 10-1000 μM with a correlation coefficient of 0.9986. Moreover, LC could quench the luminescence of mSiO2-Eu(TTA)3Bpc@MIPs in a concentration-dependent manner, which was best described by a Stern-Volmer-type equation
Template and target information: λ-Cyhalothrin

  mipdatabase.com logo imprinters do it in bulk shirt  Science Teacher peptide mug  Perpetual student shirt

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