IN SITU SCANNING TRANSMISSION ELECTRON MICROSCOPY TO UNDERSTAND NUCLEATION AND GROWTH OF GOLD NANOPARTICLES

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IN SITU SCANNING TRANSMISSION ELECTRON MICROSCOPY TO UNDERSTAND NUCLEATION AND GROWTH OF GOLD NANOPARTICLES

Zeliha Cansu Canbek OZDIL,Ph.D. Nanonetworking Research Group

About the Seminar:

Creating stronger, lighter, more reactive or more conductive materials to be used in technological innovations, biomedicine or energy sector, is one of the strong reason that pushes scientists to produce nanoparticles. Indeed, the bottom-up approach of nanotechnology will make use of nanoparticles as first building units and aims to assemble them into the materials of future. So the first challenge before any application is to produce nanoparticles with desired properties, to benefit from the strong size and morphology dependence of the properties of materials with one nano scale dimension. Further success of the targeted application is generally defined by the homogeneity of the size and the shape of the nanoparticles employed and the means (physical, chemical) to tune their properties. The focus of this presentation will be to introduce a recently developed technique, Liquid state transmission electron microscopy, used to visualize the behaviors of nanoparticle directly in their liquid environment. Technique offers the possibility to probe nanoparticles in-situ and to obtain detailed information on how nanoparticles grow in solution. In our work, incident electron beam was used as a radiation source to induce the radiolysis of water (which is responsible for the reduction of metal precursor) and as a source of illumination for the real time imaging of particles of interest in a thin layer of liquid.

About the Speaker:

Zeliha Cansu Canbek Ozdil received her B.Sc. degree in chemistry from Middle East Technical University and her M.Sc. degree from University of Regensburg in the field of “Complex Condensed Materials and Soft Matter”. She perused her PhD in physical and theoretical chemistry at University of Versailles-St-Quentin. After 2 years of working as a R&D assistant manager in automotive industry, she continued her post-doctoral research in CNRS Bordeaux in the field of meta-materials. She is currently working as a postdoctoral fellow at Bogazici University in the field of Nanonetworking.  Her specific area of research includes production/characterization of functional nanomaterials and development of microfluidic lab-on-chip (LOC) platforms.

Details

Date:
December 3, 2019
Time:
13:00 - 14:00

Venue

Boğaziçi Üniversitesi Kandilli Kampüs BME (AZ-19)