Abstract:
:Enzyme immobilization is of high interest for industrial applications. However, immobilization may compromise enzyme activity or stability due to the harsh conditions which have to be applied. The authors therefore present a new and improved crosslinked layer-by-layer (cLbL) approach. Two different model enzymes (acid phosphatase and β-galactosidase) are immobilized under mild conditions on biocompatible, monodisperse, sub-micrometer poly(lactide-co-glycolide) (PLGA) particles. The resulting PLGA enzyme systems are characterized regarding their size, surface charge, enzyme activity, storage stability, reusability, and stability under various conditions such as changing pH and temperature. The developed and characterized cLbL protocol can be easily adapted to different enzymes. Potential future uses of the technology for biomedical applications are discussed. PLGA-enzyme particles are therefore injected into the blood circulation of zebrafish embryos in order to demonstrate the in vivo stability and activity of the designed system.
journal_name
Macromol Bioscijournal_title
Macromolecular bioscienceauthors
Sieber S,Siegrist S,Schwarz S,Porta F,Schenk SH,Huwyler Jdoi
10.1002/mabi.201700015subject
Has Abstractpub_date
2017-08-01 00:00:00issue
8eissn
1616-5187issn
1616-5195journal_volume
17pub_type
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