UV-induced disruption of microcapsules with azobenzene groups

Qiangying Yi, Gleb B. Sukhorukov

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

UV responsive microcapsules containing azobenzene were fabricated by sequential deposition of oppositely charged poly[1-[4-(3-carboxy-4- hydroxyphenylazo)benzenesulfonamido]-1,2-ethanediyl, sodium salt] (PAZO) and poly(diallyldimethyl ammonium) chloride (PDADMAC). As found in this work, combination of PDADMAC and PAZO led to aggregation of PAZO segments in the progress of polymer deposition, which facilitated the large extent of J aggregates when the capsules were exposed to UV light. J aggregate assemblies destroyed the integrity of capsule shell formations, demonstrating capsule swelling and further breakage. This UV induced capsule breakage offered a new way to modulate the release of encapsulated cargos.

Original languageEnglish
Pages (from-to)1384-1391
Number of pages8
JournalSoft Matter
Volume10
Issue number9
DOIs
Publication statusPublished - 7 Mar 2014
Externally publishedYes

Fingerprint

capsules
Capsules
ammonium chlorides
Ammonium Chloride
swelling
integrity
assemblies
Ultraviolet radiation
sodium
Swelling
salts
Polymers
Agglomeration
Salts
Sodium
azobenzene
polymers
poly(1-(4-(3-carboxy-4 hydroxyphenylazo)benzene sulfonamido)-1,2-ethanediyl, sodium salt)

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

UV-induced disruption of microcapsules with azobenzene groups. / Yi, Qiangying; Sukhorukov, Gleb B.

In: Soft Matter, Vol. 10, No. 9, 07.03.2014, p. 1384-1391.

Research output: Contribution to journalArticle

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