Smart multifunctional hollow microspheres for the quick release of drugs in intracellular lysosomal compartments

Cherng Jyh Ke, Tzu Yuan Su, Hsin Lung Chen, Hao Li Liu, Wei Lun Chiang, Po Chun Chu, Younan Xia*, Hsing Wen Sung

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

138 Scopus citations

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).

Original languageEnglish
Pages (from-to)8086-8089
Number of pages4
JournalAngewandte Chemie - International Edition
Volume50
Issue number35
DOIs
StatePublished - 22 08 2011
Externally publishedYes

Keywords

  • controlled release
  • double emulsions
  • drug delivery
  • fluorescence
  • multifunctional particles

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