Fig. 8: Information encryption applications based on photo-switching bacterial cellulosic biofilms.
From: Microbe-assisted fabrication of circularly polarized luminescent bacterial cellulosic hybrids
a The mechanism of photo-switching property of PS-Glc and PS-BC upon light irradiation and the microbe-assisted fabrication of PS-BC. b Photoetching (upon 254 nm hand-held UV lamp) and photo-erasure (upon 590 nm LED) for different information storage. c QR code information encryption. d 8-bit ACSII data storage. The flow chart (left) shows the readout protocol. Positions with green fluorescence denote “1”, while non-fluorescent positions denote “0”. All information is read out under a 365 nm hand-held UV lamp. UV ultraviolet, QR quick response, LED light-emitting diode, ACSII American Standard Code for Information Interchange. Source data are provided as a Source Data file.
