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Hanno Erythropel, Ph.D.
Research Scientist
- Hanno supports the oversight of research at the Center. He is passionate about building interdisciplinary bridges between chemistry, chemical engineering, material science, toxicology, and other disciplines to create green chemistry solutions using a systems thinking framework. His work has focused on valorizing different types of biomass, developing highly functional yet biodegradable and non-toxic materials such as plasticizers, and better understanding the composition and content of tobacco products.
- Outside of the lab, Hanno enjoys exploring new places and countries and learning about local language and culture. Hanno is also an avid bike-rider.
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Brooke DeRosa
Financial Administrator
-Brooke provides financial, budgetary, and operational support to the Center for Green Chemistry and Green Engineering, with a focus on the Yale-UNIDO project (Global GreenChem Innovation and Network Programme). Her prior experience includes public accounting audits of manufacturing and service sector clients, and management of financial reporting and development of budgets in the hospitality industry.
-Her interests include sourdough bread baking, outdoor activities like tennis and gardening, and volunteer work with individuals experiencing food insecurity.
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Lars Ratjen, Ph.D.
Associate Research Scientist
- Lars likes changing places and learning things from nature and people. Before coming to Yale in 2022 he spent almost 9 years in Chile, working for Fraunhofer, at the interface of academia and industry. He is focused on interdisciplinary projects, ranging from chemistry over engineering to environmental health. He is also involved in helping other countries in sustainable development in the Yale-UNIDO initiative, which he is very passionate about.
- Out of the lab Lars enjoys watersports, cooking and trying new food, reading pretty much anything and he is an occasional artisan. There are (almost) no animals he does not like.
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Margaret Kerr, Ph.D.
Visiting Professor, Director of Education Green Chemistry for Climate and Sustainability Certificate Program
- Margaret has been researching and implementing green chemistry practices into a variety of educational arenas nationally and internationally. She has developed curriculum to explore the interconnected nature of the UN Sustainable Development Goals and the Green Chemistry principles using a systems thinking approach. She received two Fulbright grants (2007, 2023) to promote green chemistry in education and industry in Thailand.
- Outside of the lab Margaret is a nationally-ranked competitive fencer in her age group, an avid flower gardener and dog walking enthusiast.
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Predrag Petrovic, Ph.D.
Associate Research Scientist
- Predrag obtained a Ph.D. degree in organometallic chemistry by applying experimental and theoretical approaches to studying non-covalent interactions in organometallic complexes. In 2017 he joined the Center where his main research focus is setting a foundation for the methodology that will help safer chemical design that complies with the 12 Principles of Green Chemistry by using various computational tools (DFT, ab initio, etc.).
- In his free time, Predrag loves reading sci-fi and fantasy books, riding a bike, taking long walks and (not-so-long) hikes, and very occasionally playing video games .
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Timothy Sandrey
Program Coordinator
- Tim provides administrative and operational support to the Center for Green Chemistry and Green Engineering, with a focus on the Yale-UNIDO project (Global GreenChem Innovation and Network Programme). Tim brings a background in communications and media studies and previously served as the Associate Communications Officer at the Yale Institute for Biospheric Studies.
- In his free time, Tim enjoys spending time with family, exploring the outdoors, and playing guitar.
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