Multidimensional surface patterning based on wavelength-controlled disulfide-diselenide dynamic photochemistry

New buffer systems for photopainting of single biomolecules

“…[29][30][31][32][33][34][35][36][37][38][39][40] Light provides high spatio-temporal resolution to control the functions of such surfaces without a direct contact. This is achieved by photoisomerization,coupling or -cleavage through chemical bond breakage/ formation, 20,[41][42][43][44][45][46][47][48] or addition of photo-switchable molecules such as azobenzene, [49][50][51][52][53][54][55] spiropyran, [56][57][58] dithienylethene, 59,60 and molecular shuttles. [61][62][63] Such photo-switchable modifications can be switched between multiple molecular states via light irradiation.…”

Water-sensitive fluorescent microgel inks to produce verifiable information for highly secured anti-counterfeiting

“…[6][7][8][9][10][11][12] Fluorescent anti-counterfeiting labels have attracted wide attention due to the characteristic of fluorescence color concealment, which means that it can only be displayed at a specific excitation wavelength. [13][14][15][16][17][18][19] For instance, Wu and colleagues 10 encoded multiple fluorescent patterns on a shape memory hydrogel, and the hidden informations could only be decrypted under UV irradiation after shape recovery. Wang and coworkers 20…”

Dynamic and mechanically robust and ultrafast healable ionogel for nerve fiber-inspired signal transmitter

“…Recently, diselenide bonds have been developed as one type of novel dynamic covalent bonds because of their modulable dynamic behaviors. 30,31 The low bond energy, which is 172 kJ mol −1 , 32 makes it possible for the diselenides to undergo exchange under the irradiation of visible light without catalyst or mild temperature ( i.e. , 80 °C).…”