MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Jia J, Cheng GJ, Wu AH, Luan SJ
Article Title: Novel imprinted polyethyleneimine nano-fluorescent probes with controllable selectivity for recognizing and adsorbing metal ions.
Publication date: 2017
Journal: RSC Advances
Volume: 7
Issue: (57)
Page numbers: 36048-36055.
DOI: 10.1039/C7RA04712F

Abstract: Novel ion imprinted nano-fluorescent probes (IIP-fluorescein) based on polyethyleneimine (PEI) were obtained via simple imprinting and grafting with fluorescein, and used for high recognition, detection and adsorption of Cu2+, Zn2+ and Cr3+ in aqueous solution. The selectivity of PEI is adjustable through an imprinting process for Cu2+, Zn2+or Cr3+, which have a strong affinity for the amino group. Each probe reveals specific selectivity to and recognition of the relevant template metal ion over seven other common metal ions. The three probes exhibit a large linear detection range, high accuracy and strong adsorption capacity for Cu2+, Zn2+ and Cr3+. The sensitive and selective detection, as well as the removal of Cu2+, Zn2+ and Cr3+ by using IIP-fluorescein was further demonstrated in polluted tap and river water, indicating their potential application in environmental monitoring and treatment. Additionally, the sensing mechanism of IIP-fluorescein for metal ions was investigated through Gaussian 09. The synergistic effect of photo-induced electron transfer (PET) and intramolecular charge transfer (ICT) was demonstrated in the sensing process for metal ions. The design concept might propose a method for developing and studying other fluorescent probes with similar systems (containing amino groups, mercapto groups or cyano groups)
Template and target information: copper ion, zinc ion, chromium ion, Cu(II), Zn(II), Cr(III)


  Template of Doom spoof movie poster mug  Chemistry peptide mug    mug featuring the element Copper

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