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Université de Fribourg

Self-assembly and alignment of semiconductor nanoparticles on cellulose nanocrystals

Padalkar, Sonal ; Capadona, Jeff R. ; Rowan, Stuart J. ; Weder, Christoph ; Moon, Robert J. ; Stanciu, Lia A.

In: Journal of Materials Science, 2011, vol. 46, no. 17, p. 5672-5679

The synthesis of cadmium sulfide (CdS), zinc sulfide (ZnS), and lead sulfide (PbS) nanoparticle chains on cellulose nanocrystal (CNC) templates can be accomplished by the reaction of the precursor salts. The use of a cationic surfactant, cetyltrimethylammonium bromide (CTAB), was critical for the synthesis of well-defined semiconductor nanoparticle chains on the surface of the CNCs. The...

Université de Fribourg

Natural biopolymers: novel templates for the synthesis of nanostructures

Padalkar, Sonal ; Capadona, Jephrey R. ; Rowan, Suart J. ; Weder, Christoph ; Won, Yu-Ho ; Stanciu, Lia A. ; Moon, Robert J.

In: Langmuir, 2010, vol. 26, no. 11, p. 8497–8502

Biological systems such as proteins, viruses, and DNA have been most often reported to be used as templates for the synthesis of functional nanomaterials, but the properties of widely available biopolymers, such as cellulose, have been much less exploited for this purpose. Here, we report for the first time that cellulose nanocrystals (CNC) have the capacity to assist in the synthesis of metallic...