In situ synthesis of Au nanoparticles in 3D circular microchannels in PDMS using a simple and reliable molding method

• Published in: Microelectronic engineering Vol. 90; no. Feb; pp. 104 - 107
• Main Authors: Agrawal, Shailaja, Morarka, Amit, Paknikar, K.M., Bodas, Dhananjay
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.02.2012; Elsevier
• Subjects: Applied fluid mechanics; Applied sciences; Au nanoparticles; Capillary forces; Cross-disciplinary physics: materials science; rheology; Electronics; Exact sciences and technology; Fluid dynamics; Fluidics; Fundamental areas of phenomenology (including applications); Gold; Inert; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Materials science; Microelectronic fabrication (materials and surfaces technology); Nanoparticles; Nanopowders; Nanoscale materials and structures: fabrication and characterization; Physics; Reactors; Scanning probe microscopes, components and techniques; SEM; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Silicone resins; Soft lithography; Synthesis; Three dimensional; Wire; Soft lithography; Capillary forces; Au nanoparticles; SEM; Dimethylsiloxane polymer; Scanning electron microscopy; Gold; In situ; Two dimensional structure; Systems analysis; Mixers (circuits); Micromachine; Nanoparticles; Microelectronic fabrication; Wires; Microfluidics
• ISSN: 0167-9317; 1873-5568
• DOI: 10.1016/j.mee.2011.05.032

The current work deals with simple, one step and direct approach of fabrication of circular micro-channels using wires of micro dimensions. To modify the inert surface of PDMS, for immobilization of biomolecules and its further applications, in situ synthesis of gold nanoparticles was carried out. Compared to 2D, 3D structures in poly(dimethylsiloxane) (PDMS) can achieve more functions and is used in many microfluidic applications like micro-mixers, micro reactors, bio-system analysis and immuno-sensors. The current work deals with simple, one step and direct approach of fabrication of circular micro-channels using wires of micro dimensions. To modify the inert surface of PDMS, for immobilization of biomolecules and its further applications, in situ synthesis of gold nanoparticles was carried out.