公开(公告)号：US11566115B2

公开(公告)日：2023-01-31

申请号：US16141758

申请日：2018-09-25

Applicant: Northeastern University ,  U.S. Govt. as Represented by the Sec. of the Army

Inventor： Leila Deravi ,  Camille A. Martin ,  Amrita Kumar ,  Richard M. Osgood, III

IPC: C08J5/04 ,  C08K5/00 ,  C09K9/02 ,  C08J5/18 ,  C08K3/36 ,  C08K3/22 ,  C08K5/357 ,  B32B27/00

Abstract: Biologically-inspired compositions, including color changing compositions, and corresponding embodiments such as sensors, textile materials, coatings and films, are provided which typically include a solid, transparent and nondegradable matrix. The matrix contains a plurality of (i) synthetic particles having a size in the micrometer or nanometer range, each synthetic particle including one or more aggregates of a pigment selected from phenoxazone, phenoxazine, and a derivate or precursor thereof, and a stabilizing material which has a refractive index larger than 1.45, the aggregates having a size larger than about 100 nm; or (ii) submicrometer natural particles extracted and purified from homogenized tissue.