FUNCTIONALIZATION OF SEMICONDUCTOR NANOPARTICLES IN A MICROFLUIDIC SYSTEM

Devam Eden Proje

Tübitak 2232

SUMMERY

Semiconductor nanoparticles have unique optical and electrical properties due to their large surface to volume ratio. In order to preserve their properties, it is important to coat their surface with a protective material, such as silicon dioxide (silica). In general, coating of nanoparticles is done in batch-wise techniques which are laborious and last for a couple of hours. On the other hand, it is not possible to obtain uniform coating thicknesses in these methods due to lack of control over reaction conditions. Microfluidic systems, on the other hand, addresses these issues by providing a highly controllable environment in terms of concentration of reagents, residence time, temperature, pH, etc. Therefore they are promising for achieving monodisperse coating. This project aims to design a microfluidic reactor that is designed for the purpose of coating CdSe nanoparticles with silica layer.

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  • Özkan, A., Erdem, Y. (2015). "Numerical analysis of mixing performance in sinusoidal microchannels based on particle motion in droplets", Microfluidics and Nanofluidics, Abstract, Full Text, DOI: https://link.springer.com/article/10.1007%2Fs10404-015-1628-7
  • Erdem, Y., Cheng, J., Vigevani, G., Doyle, F., Pisano, A. (2013). "Rapidly Printed Polyurethane Microreactor for the Synthesis of Monodisperse Magnetic Iron Oxide Nanoparticles", in preparation
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  • Doh, I., Erdem, Y., Pisano, A. (2012). "Trapping and Collection of Uniform Size Droplets for Nanoparticle Synthesis", Applied Physics Letters, v.100 p.074106
  • Duncombe, T., Erdem, Y., Shastry, A., Baskaran, R., Böhringer, K. (2012). "Controlling Liquid Drops with Texture Ratchets", Advanced Materials, v.24 p.1545
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  • Erdem, Y., Chen, Y., Mohabbi, M., Suh, J., Kovacs, G., Darling, R., Böhringer, K. (2010). "Thermally Actuated Omnidirectional Walking Microrobot", IEEE Journal of MEMS, v.19 p.433
  • Aşık, M.D., Çetin, B., Kaplan, M., Erdem, Y., Sağlam, N. (2016). "3D printed microfluidic reactor for high throughput chitosan nanoparticle synthesis", The 20th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2016), Full Text