Instituto Tecnologico Y De Estudios Superiores De Monterrey

Sergio Omar Martínez Chapa

Gaurav Chauhan

Marc J Madou

Martín Jiménez Moreno

Vianni Chopra

Braulio Cárdenas Benítez

Manish Madhukar Kulkarni

Use of heterogeneous nucleation allows the localized reduction of metal salt and also cross-link the carbon precursor in the same region. This cross-linked matrix act as the secondary heterogeneous sites for spontaneous Nano particle synthesis and growth during the process of pyrolysis. Selectively creating heterogeneous sites and reducing the metal precursor using highly focused energy beams create various metal-carbon composites with controlled metal positioning. This is such a unique process where a pretreatment process will control the fabrication of complex metal-carbon composite nano and microstructures. This greatly simplifies the fabrication process, facilitating nanostructures like Nano metal bulbs, nanometal pointed nanogaps and metal sandwich structures with such process. With several advantages ranging from electronics, catalysis, optics and several other bio-functionalization technologies, this enables materials with unique and hybrid advantages. Moreover, fabrication of micro and Nano level structures provides a CMEMS and BIOMEMS relevant approach for wide range of applications.

Migration of nano metals in semisolid and solid matrix under the influence of selectively triggered heterogeneous nucleation and growth

Disclosed is a bottom-up synthesis approach for the fabrication of gold nanoparticles composite carbon thin films based on in situ reduction of gold precursor within a photoresist matrix. This provides the possibility to accumulate noble metal nanostructures both on the surface as wells as in the bulk of a tough material like glassy carbon. With several advantages ranging from electronics, catalysis, optics and several other biofuntionalization technologies, this material is like a hybrid. Moreover, fabrication of micro and Nano level structures make it as a CMEMS and BIOMEMS relevant material for wide range of applications.

Noble nanometals embedded carbon composites, a bottom-up fabrication process and different applications

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Monterrey, Mexico

Sergio Omar Martínez Chapa