Synthesis and photoluminescence study of molecularly imprinted polymers appended onto CdSe/ZnS core-shells.

The Photoluminescence of quantum dots have been found to be a useful tool for the detection of small to medium sized analyte molecules in a host-guest environment. By the incorporation of quantum dots into molecularly imprinted polymers, which can offer shape and selectivity, the former can respond by quenching the photoluminescence emission upon template binding. In this work host polymers were synthesized and cased into thin films using functional monomers such as methacrylic acid (MAA), CdSe/ZnS core-shell derivatized with 4-vinyl pyridine and ethylene glycol dimethacrylic acid (EGDMA) as a cross-linker. The intensity of photoluminescence emission is detected upon analyte binding.

[1]  Barbara Wandelt,et al.  Fluorescent Functional Recognition Sites through Molecular Imprinting. A Polymer-Based Fluorescent Chemosensor for Aqueous cAMP. , 1998 .

[2]  Xiaogang Peng,et al.  Photochemical instability of CdSe nanocrystals coated by hydrophilic thiols. , 2001, Journal of the American Chemical Society.

[3]  S. Nie,et al.  Quantum dot bioconjugates for ultrasensitive nonisotopic detection. , 1998, Science.

[4]  J. Matthew Mauro,et al.  Self-Assembly of CdSe−ZnS Quantum Dot Bioconjugates Using an Engineered Recombinant Protein , 2000 .

[5]  D. Balding,et al.  HLA Sequence Polymorphism and the Origin of Humans , 2006 .

[6]  G. Wulff Molecular Imprinting in Cross‐Linked Materials with the Aid of Molecular Templates— A Way towards Artificial Antibodies , 1995 .

[7]  K. Mosbach,et al.  Molecularly imprinted polymers and their use in biomimetic sensors. , 2000, Chemical reviews.

[8]  Shannon E. Stitzel,et al.  Cross-reactive chemical sensor arrays. , 2000, Chemical reviews.

[9]  F. Dickert,et al.  Molecular Fingerprints Using Imprinting Techniques , 2000 .

[10]  Philippe Guyot-Sionnest,et al.  Intraband relaxation in CdSe quantum dots , 1999 .

[11]  Philippe Guyot-Sionnest,et al.  Electrochromic semiconductor nanocrystal films , 2002 .

[12]  Steven R. Cordero,et al.  Photo-activated luminescence of CdSe quantum dot monolayers , 2000 .

[13]  A. Rogach,et al.  A New Approach to Crystallization of CdSe Nanoparticles into Ordered Three‐Dimensional Superlattices , 2001 .

[14]  M. Artemyev,et al.  Spectroscopic Study of Electronic States in an Ensemble of Close-Packed CdSe Nanocrystals , 2000 .