Title :
Encapsulation of hydrophobic nanocrystals by diblock copolymers
Author :
Xu, Jun ; Chen, Hongyu
Author_Institution :
Div. of Chem. & Biol. Chem., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We describe a simple and versatile method to prepare water-soluble nanostructures by encapsulating hydrophobic nanocrystals with diblock copolymer micelles. Various hydrophobic nanocrystals, including metal, magnetic and semiconductor nanoparticles are encapsulated within amphiphilic polystyrene-block-poly(acrylic acid) block polymer. The resulting water soluble nanoparticles have well defined core-shell structure, and exhibit extraordinary stability. The physical properties of the nanocrystals are retained after encapsulation.
Keywords :
II-VI semiconductors; cadmium compounds; encapsulation; gold; iron alloys; iron compounds; magnetic particles; nanoparticles; polymer blends; semiconductor quantum dots; zinc compounds; Au; CdSe; CdSe-ZnS; Fe2O3; FePt; amphiphilic polystyrene-block-poly(acrylic acid) block polymer; core-shell structure; diblock copolymer micelles; encapsulation; hydrophobic nanocrystals; magnetic nanoparticle; metal nanoparticle; semiconductor nanoparticle; water soluble nanoparticles; water-soluble nanostructures; ¿-Fe2O3; Encapsulation; Iron; Magnetic cores; Magnetic semiconductors; Nanocrystals; Nanoparticles; Polymers; Stability; Superconducting magnets; Zinc compounds;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424446
