Smart Multifunctional Hollow Microspheres for the Quick Release of Drugs in Intracellular Lysosomal Compartments
Journal
Angewte Chemie International Edition
Journal Volume
50
Journal Issue
35
Pages
8086 -8089
Date Issued
2011
Author(s)
C-J Ke
T-Y Su
H-Chen
W-L Chiang
P-C Chu
Y Xia
H-W Sung
C-J Ke
T-Y Su
H-Chen
W-L Chiang
P-C Chu
Y Xia
H-W Sung
Abstract
Prepared to self-destruct: When poly(d,l-lactic-co-glycolic acid) (PLGA) hollow microspheres containing NaHCO3 entered the endocytic organelles of a live cell, the NaHCO3 in the aqueous core reacted with protons that infiltrated from the compartment to generate CO2 gas. The evolution of CO2 bubbles led to the formation of small holes in the PLGA shell and thus rapid release of the encapsulated drug doxorubicin (DOX; see picture). © 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Subjects
controlled release; double emulsions; drug delivery; fluorescence; multifunctional particles
Other Subjects
Controlled release; Double emulsions; Doxorubicin; Encapsulated drugs; Hollow microsphere; Live cell; multifunctional particles; Poly(D , L-lactic-co-glycolic acid); Rapid release; Small Hole; Catalyst activity; Drug delivery; Microspheres; Carbon dioxide; bicarbonate; doxorubicin; drug; drug carrier; lactic acid; microsphere; polyglycolic acid; polylactic acid polyglycolic acid copolymer; polylactic acid-polyglycolic acid copolymer; article; cell survival; chemistry; drug effect; human; lysosome; metabolism; pH; tumor cell line; Cell Line, Tumor; Cell Survival; Doxorubicin; Drug Carriers; Humans; Hydrogen-Ion Concentration; Lactic Acid; Lysosomes; Microspheres; Pharmaceutical Preparations; Polyglycolic Acid; Sodium Bicarbonate
Type
journal article