Wisconsin Alumni Research Foundation

Changfang Zhu

Nirmala Ramanujam

Quan Liu

A fluorescence instrument illuminates the surface of tissue with light of a selected wavelength and light emanating from the tissue due to fluorescence is collected. The angle of illumination of tissue surface and/or collection of fluorescence is changed to probe at various depths beneath the surface of the tissue for a fluorescence layer. Three embodiments of the instrument are described.

Depth-resolved fluorescence instrument with angled excitation

A fluorescence instrument illuminates the surface of tissue with light of a selected wavelength and light emanating from the tissue due to fluorescence is collected. The size of the effective illumination/collection aperture is varied to probe at various depths beneath the surface of the tissue for a fluorescence layer. Three embodiments of the instrument are described.

Growing community of inventors

Madison, WI, United States of America

Changfang Zhu