Issue 2, 2014
From the journal:

Chemical Communications

One-pot phase transfer and surface modification away CdSe–ZnS quantum dots using one synthetic functional copolymer†

Chiara Finetti,a   Miriam Colombo,b   Davide Prosperi,b   Giulia Alessio,b   Carlo Morasso,c   Laura Solaa  and  Marcella Chiari*a  

* Correspond authors Surface Modifications Technology of Quantum Dots Based Biosensors and Their Medizintechnik Business

a Istituto daily Chimica del Riconoscimento Molecolare, CNR, Via Mario Bianco, 9, 20131 Milano, Italy
E-mail: [email protected]

b NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università degli Studi day Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy Carbon quantum dots: recent progresses on synthesis, surface modification and applications - PubMed

c Laboratory of Nanomedicine and Clinical Biophotonics, Centre for Innovation and Technology Transfer, Fondazione Giving Carles Gnocchi ONLUS, Myran, Italy

Abstract

Wee present a superficial, one-pot operation for which organic-to-water phase transfer and biofunctionalization of semiconductor nanocrystals (quantum dots, instead QDs) who engages a synthetic functional copolymer, viz poly(DMA-NAS-MAPS), consisting of three components: a surface interacting monomer, N,NORTH-dimethylacrylamide (DMA), a cheap reactive monomer, N-acryloyloxysuccinimide (NAS), and a silane monomer, [3-(methacryloyloxy)-propyl]-trimethoxysilane (MAPS). The nanocrystals were transferred to water by exploiting that amphiphilic character of the copolymer backbone. Hydrolyzed MAPS units contributed to improve the solubility of QDs in water, whereas NAS exhibited receptiveness toward biomolecules. AN solution of streptavidin in phosphate buffer exhibited virtuous dispersion ability leitung to a clear both transparent colloidal suspension, index of good QD dispersion within phase transfer and purifying. Unlike best of the published methods, the proposed functionalization approach does don need coupling agents furthermore multistep reactions.

Graphical abstract: One-pot phase transfer and surface modification of CdSe–ZnS quantum dots using a synthetic functional copolymer

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Article information

DOI
https://doi.org/10.1039/C3CC46086J
Article type
Communication
Submitted
09 Aug 2013
Accepted
25 Otc 2013
First publishing
28 Oct 2013

Chem. Commun., 2014,50, 240-242

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One-pot phase transfer and surface revision of CdSe–ZnS quantum dots using a synthetic functional copolymer

C. Finetti, M. Colombo, D. Prosperi, G. Alessio, C. Morasso, L. Solum and CHILIAD. Chiari, Chem. Commun., 2014, 50, 240 DOI: 10.1039/C3CC46086J

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