Layer-by-layer assembled multilayers using catalase-encapsulated gold nanoparticles
- Authors
- Kim, Sungwoo; Park, Jeongju; Cho, Jinhan
- Issue Date
- 17-9월-2010
- Publisher
- IOP PUBLISHING LTD
- Citation
- NANOTECHNOLOGY, v.21, no.37
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOTECHNOLOGY
- Volume
- 21
- Number
- 37
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115672
- DOI
- 10.1088/0957-4484/21/37/375702
- ISSN
- 0957-4484
- Abstract
- We introduce a novel and versatile approach for the preparation of multilayers, based on catalase-encapsulated gold nanoparticles (CAT-Au-NP), allowing electrostatic charge reversal and structural transformation through pH adjustment. CAT-Au-NP, which are synthesized directly from CAT stabilizer, can be electrostatically assembled with anionic and cationic PEs as a result of the charge reversal of the catalase stabilizers through pH control. In particular, at pH 5.2, near the pI of catalase, dispersed CAT-Au-NP are structurally transformed into colloidal or network CAT-Au-NP nanocomposites. Furthermore, we demonstrate that the layer-by-layer assembled multilayers composed of PEs and CAT-Au-NP induce an effective electron transfer between CAT and the electrode as well as a high loading of CAT and Au-NP, and resultantly exhibit a highly catalytic activity toward H2O2.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholar.korea.ac.kr/handle/2021.sw.korea/115672)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.