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Photoswitchable Particles for On‐Demand Degradation and Triggered Release
Author(s) -
Park TaeHong,
Eyster Thomas W.,
Lumley Joshua M.,
Hwang Sangyeul,
Lee Kyung Jin,
Misra Asish,
Rahmani Sahar,
Lahann Joerg
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201201921
Subject(s) - acetal , degradation (telecommunications) , on demand , polymer , dextran , dissolution , chemical engineering , chemistry , catalysis , polymer chemistry , photochemistry , materials science , organic chemistry , computer science , telecommunications , multimedia , engineering
On‐demand degradable polymer particles are fabricated via electrospraying of a solution of acetal‐protected dextran that further includes 2‐(4‐methoxystyryl)‐4,6‐bis(trichloromethyl)‐1,3,5‐triazine as a photoacid generator. The illumination of UV light gives rise to photoacid and activates the catalytic deprotection of hydroxyl groups of dextran, leading to controlled dissolution of the microparticles in water.