Journal of Aeronautics & Aerospace Engineering
Open Access

Size-controlled colloidal synthesis of monodisperse siloxane-based PDMS nanoparticles

5^th International Conference and Exhibition on Mechanical & Aerospace Engineering

October 02-04, 2017 Las Vegas, USA

Taejong Paik, Phornsawat Baypaiwad and Hansoo Park

Chung-Ang University, South Korea

Scientific Tracks Abstracts: J Aeronaut Aerospace Eng

Abstract :

Recently, polydimethylsiloxane (PDMS) particles gained the attention as a polymeric matrix support for biomolecules and contrast agents due to their biocompatible, inert, and tolerance to a variety of fabrication methods. In this study, we synthesized the colloidal nanoparticles (NPs) with various monodisperse size distributions. Modified St�?¶ber process has been tested to synthesize PDMS NPs by using dimethylsiloxane and tetraethyl orthosilicate as precursors. Ammonia was used to induce base-catalyst hydrolysis and condensation, forming dispersed nanocolloids. Chemical bond structure of PDMS was confirmed by FT-IR spectrums and EDS. The synthesized PDMS NPs exhibited an excellent colloidal stability in water. The particle size was readily tunable from approximately 90 nm to 300 nm in diameter by changing the concentration of monomers and catalyst. Furthermore, the cytotoxicity of siloxanebased PDMS NPs was evaluated by CCK-8 assay for all groups.

Biography :

Taejong Paik has completed his PhD from University of Pennsylvania, USA. He is the Assistant Professor of Chung-Ang University, South Korea. He has over 30 publications reported in high quality journals in the field of Chemistry, including JACS, Nano Letters, and ACS Nano, and his publication H-index is 18.