# Winners of the 2013 Demetriades

**Source**: https://aph.caltech.edu/news/winners-of-the-2013-demetriades-tsafka-kokkalis-prizes-announced
**Parent**: https://aph.caltech.edu/people/etcher

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Winners of the 2013 Demetriades - Tsafka - Kokkalis Prizes Announced

# Winners of the 2013 Demetriades - Tsafka - Kokkalis Prizes Announced

June 14, 2013

The student winners of the 2013 [Demetriades - Tsafka - Kokkalis Prizes](http://demetriades.caltech.edu/) were announced at a special luncheon with the Demetriades - Tsafka – Kokkalis family. **Pedro Coelho** received the prize in Biotechnology for his work with [Frances Arnold](http://www.directory.caltech.edu/cgi-bin/search.cgi?uid=farnold) on biocatalyst engineering that has a myriad of applications in green chemistry. **Michael Olson** was the recipient of the prize in Seismo-Engineering, Prediction, and Protection for his work with [Mani Chandy](https://aph.caltech.edu/people/2964/profile) on developing the cloud based service that enables the community seismic network to function. **James McKone** working with [Harry Gray](http://www.directory.caltech.edu/cgi-bin/search.cgi?uid=hgcm) received the prize in Environmentally Benign Renewable Energy Sources for his work on developing new catalysts for solar-driven water splitting to produce hydrogen fuel. The winner of the prize in Nanotechnology was **Janna Nawroth** for her wide range of experiments including the creation of a freely swimming artificial jellyfish. Janna's advisor was [John Dabiri](https://aph.caltech.edu/people/3283/profile). This year there were two winners for the Demetriades-Tsafka-Kokkalis Prizes is in Entrepreneurship. One winner was **Aditya Rajagopal** for his worked on new pathogen detection approaches that are currently being commercialized. Aditya was advised by [Axel Scherer](https://aph.caltech.edu/people/3194/profile) The other winner of the Entrepreneurship prize was **Guoan Zheng** who has worked with [Changhei Yang](https://aph.caltech.edu/people/3261/profile) on a number of entrepreneur efforts including two Caltech startups that are currently commercializing two of his inventions - one is a self-imaging petri-dish platform that can stream microscopy images out of an incubator and the other is a highly novel digital pathology slide scanner.

Ares Rosakis and Demetriades Winners

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