MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Zhang YL, Pan Z, Yuan YX, Sun ZM, Ma JK, Huang GB, Xing FB, Gao JP
Article Title: Molecularly imprinted photonic crystals for the direct label-free distinguishing of l-proline and d-proline.
Publication date: 2013
Journal: Physical Chemistry Chemical Physics
Volume: 15
Issue: (40)
Page numbers: 17250-17256.
DOI: 10.1039/C3CP52213J

Abstract: Novel molecularly imprinted photonic crystals (IPCs) for the highly sensitive label-free detection of l-proline and for the chiral recognition of l/d-proline were reported. A series of l-proline imprinted polyacrylamide photonic crystals (PAM-LPIPCs) and poly(acrylamide-co-acrylic acid) photonic crystals (PAM-co-AA-LPIPCs) were fabricated via the in situ polymerization of polystyrene opal. The PAM-LPIPCs exhibit good molecular response in l-proline solutions and can be visualized by the naked eye much like a pH test paper. The concentration of imprinted molecules (l-proline) in aqueous solution can be detected by the chromatic signal (structural color) or the optical signal (λmax). Furthermore, the responsivity and sensitivity of the PAM-co-AA-LPIPCs can be improved by increasing the amount of the imprinted content or the proportion of AA, or by decreasing the ratio of the cross-linking agent. When all these factors were balanced, a PAM2-co-AA0.4-LP0.5 IPC with good strength, high responsivity, high sensitivity and specific molecular recognition was obtained. It is found that the presented crystals can show obvious response to l-proline solution even at a low concentration of 1%. The PAM2-co-AA0.4-LP0.5 IPC not only very selectively distinguishes between l-proline and nicotinic acid, but it is also good at chiral recognition between l-proline and d-proline. What is more, the response is rapid and reversible and the IPC is recyclable
Template and target information: l-proline

  Periodic table Soup - the chemical formula for soup apron  Periodic table Bag bag  Meerkat somebody mention coffee mug

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