Achieving organic nanoparticles with redox-active capabilities: synthesis of gold nanoparticles in water as a proof-of-principle

Herein, we present a unique approach to easily achieve redox-active nanosized organic particles in aqueous environment using a strategy based on ion association between large organic ions, namely tetraphenylborate anions and thiazole orange cations. The anionic tetraphenylborate associates tightly w...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2012-09, Vol.14 (9), p.1, Article 1099
Main Authors: Mooi, Sara M., Sutherland, Todd C., Heyne, Belinda
Format: Article
Language:English
Subjects:
Anions
Brief Communication
Cations
Characterization and Evaluation of Materials
Chemistry and Materials Science
Inorganic Chemistry
Lasers
Materials Science
Nanoparticles
Nanotechnology
Optical Devices
Optics
Photonics
Physical Chemistry
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Summary:Herein, we present a unique approach to easily achieve redox-active nanosized organic particles in aqueous environment using a strategy based on ion association between large organic ions, namely tetraphenylborate anions and thiazole orange cations. The anionic tetraphenylborate associates tightly with the cationic redox-active thiazole orange producing a well-defined meta-stable organic nanoscale particle (73 ± 20 nm). These redox-active nanosized organic particles can act as seed sites for metal reductions and as a proof-of-concept, they were used to reduce gold(III) to gold nanoparticles in a neutral, aqueous environment at room temperature.
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-012-1099-7