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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Understanding the Formation of the Self-Assembly of Colloidal Copper Nanoparticles by Surfactant: A Molecular Velcro

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Autor(es):
Bortoleto-Bugs, Raquel Kely [1, 2, 3] ; Mazon, Talita [3, 4] ; Biasoli, Marcio Tarozzo [1, 3] ; Pavani Filho, Aristides [1, 3] ; Swart, Jacobus Willibrordus [3, 5] ; Bugs, Milton Roque [1, 2, 3]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] CTI Renato Archer, Micro Syst Div, BR-13069901 Campinas, SP - Brazil
[2] CTI Renato Archer, Appl Nanotechnol Lab, BR-13069901 Campinas, SP - Brazil
[3] INCT NAMITEC, BR-13069901 Campinas, SP - Brazil
[4] CTI Renato Archer, Informat Displays Div, BR-13069901 Campinas, SP - Brazil
[5] CCS UNICAMP, Fac Elect & Comp Engn, BR-13083970 Campinas, SP - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: Journal of Nanomaterials; 2013.
Citações Web of Science: 2
Resumo

Self-assembly procedure is employed to synthesize colloidal copper nanoparticles (ccNPs) with cationic surfactant in an environmentally friendly method. Scanning electron microscopy images provide a clear view of the ccNPs formed having an approximate size of 15 nm. The X-ray diffraction reveals that the ccNPs have the two types of copper oxide as well as the metallic copper. The new procedure shows that the cationic surfactant CTAB plays an important role in the understanding and development of self-assembly. There is a strong relationship between the ccNPs formation with the critical micelle concentration of the CTAB which influences both shape and size. The outcomes allowed the development of a molecular model for the ccNPs synthesis showing that the CTAB monomer on the surface has the function of a molecular velcro making the linkage of ccNPs to form an agglomerate with size around 600 nm. Finally, with the emerging new technologies, the synthesis of copper oxide takes a new perspective for their applicability in diverse integrated areas such as the flexible electronics and energy. (AU)

Processo FAPESP: 08/57862-6 - NAMITEC
Beneficiário:Jacobus Willibrordus Swart
Linha de fomento: Auxílio à Pesquisa - Temático