News & Announcements

Dr. Geyou (Augyu) Ao Named on US Patent

On November 22, 2022, the United States Patent and Trademark Office issued U.S. Patent 11,504,311, titled Boron Nitride Nanomaterial (BNNT) Compositions, that names Dr. Geyou (Augyu) Ao, professor in the Department of Chemical and Biomedical Engineering (CBE). The patent relates to a method to produce stable, controllable compositions of boron nitride nanomaterials, including hexagonal boronitride (hBN).

The composition hBN is used in over 640 cosmetic formulations, primarily for skin-contacting products such as eye shadow and powder. The multifunctionality of BNNT and hBN nanosheets will enable them to serve as both an effective stabilizer of emulsions and a UV filter. The BNNT and hBN nanosheets provide a water-soluble UV filter that helps sunscreen manufacturers who want to innovate safe and effective sunscreens by reducing costs, improving sensory appeal, and environmental safety of the product.

This article original appeared in the CSU Office of Research News.

About CSU and the Washkewicz College of Engineering

​​​​​​Cleveland State University is a public institution located in Cleveland, Ohio. The university has an enrollment of more than 16,000 students in programs at the baccalaureate, masters, and doctoral levels. The university is accredited by the Higher Learning Commission and is currently awaiting reaffirmation of accreditation. Washkewicz College of Engineering offers graduate and undergraduate program. The undergraduate programs are accredited by the Accreditation Board for Engineering and Technology (ABET) ( This year, the College will celebrate its Centennial Anniversary. To learn more about the College, please visit: