Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization
Silica xerogels have been proposed as a potential support to immobilize enzymes. Improving xerogels’ interactions with such enzymes and their mechanical strengths is critical to their practical applications. Herein, based on the mussel-inspired chemistry, we demonstrated a simple and highly effectiv...
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ftdoajarticles:oai:doaj.org/article:9c2e69c3803240bab1aff6a824bb68b2 2023-05-15T13:59:09+02:00 Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization Honghai Wang Wenda Yue Shuling Zhang Yu Zhang Chunli Li Weiyi Su 2021-11-01T00:00:00Z https://doi.org/10.3390/catal11121463 https://doaj.org/article/9c2e69c3803240bab1aff6a824bb68b2 EN eng MDPI AG https://www.mdpi.com/2073-4344/11/12/1463 https://doaj.org/toc/2073-4344 doi:10.3390/catal11121463 2073-4344 https://doaj.org/article/9c2e69c3803240bab1aff6a824bb68b2 Catalysts, Vol 11, Iss 1463, p 1463 (2021) Candida antarctica lipase B silica xerogel enzyme immobilization polydopamine modification Chemical technology TP1-1185 Chemistry QD1-999 article 2021 ftdoajarticles https://doi.org/10.3390/catal11121463 2022-12-31T11:02:11Z Silica xerogels have been proposed as a potential support to immobilize enzymes. Improving xerogels’ interactions with such enzymes and their mechanical strengths is critical to their practical applications. Herein, based on the mussel-inspired chemistry, we demonstrated a simple and highly effective strategy for stabilizing enzymes embedded inside silica xerogels by a polydopamine (PDA) coating through in-situ polymerization. The modified silica xerogels were characterized by scanning and transmission electron microscopy, Fourier tranform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and pore structure analyses. When the PDA-modified silica xerogels were used to immobilize enzymes of Candida antarctica lipase B (CALB), they exhibited a high loading ability of 45.6 mg/g support , which was higher than that of immobilized CALB in silica xerogels (28.5 mg/g support ). The immobilized CALB of the PDA-modified silica xerogels retained 71.4% of their initial activities after 90 days of storage, whereas the free CALB retained only 30.2%. Moreover, compared with the immobilization of enzymes in silica xerogels, the mechanical properties, thermal stability and reusability of enzymes immobilized in PDA-modified silica xerogels were also improved significantly. These advantages indicate that the new hybrid material can be used as a low-cost and effective immobilized-enzyme support. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Catalysts 11 12 1463 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Candida antarctica lipase B silica xerogel enzyme immobilization polydopamine modification Chemical technology TP1-1185 Chemistry QD1-999 |
spellingShingle |
Candida antarctica lipase B silica xerogel enzyme immobilization polydopamine modification Chemical technology TP1-1185 Chemistry QD1-999 Honghai Wang Wenda Yue Shuling Zhang Yu Zhang Chunli Li Weiyi Su Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization |
topic_facet |
Candida antarctica lipase B silica xerogel enzyme immobilization polydopamine modification Chemical technology TP1-1185 Chemistry QD1-999 |
description |
Silica xerogels have been proposed as a potential support to immobilize enzymes. Improving xerogels’ interactions with such enzymes and their mechanical strengths is critical to their practical applications. Herein, based on the mussel-inspired chemistry, we demonstrated a simple and highly effective strategy for stabilizing enzymes embedded inside silica xerogels by a polydopamine (PDA) coating through in-situ polymerization. The modified silica xerogels were characterized by scanning and transmission electron microscopy, Fourier tranform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and pore structure analyses. When the PDA-modified silica xerogels were used to immobilize enzymes of Candida antarctica lipase B (CALB), they exhibited a high loading ability of 45.6 mg/g support , which was higher than that of immobilized CALB in silica xerogels (28.5 mg/g support ). The immobilized CALB of the PDA-modified silica xerogels retained 71.4% of their initial activities after 90 days of storage, whereas the free CALB retained only 30.2%. Moreover, compared with the immobilization of enzymes in silica xerogels, the mechanical properties, thermal stability and reusability of enzymes immobilized in PDA-modified silica xerogels were also improved significantly. These advantages indicate that the new hybrid material can be used as a low-cost and effective immobilized-enzyme support. |
format |
Article in Journal/Newspaper |
author |
Honghai Wang Wenda Yue Shuling Zhang Yu Zhang Chunli Li Weiyi Su |
author_facet |
Honghai Wang Wenda Yue Shuling Zhang Yu Zhang Chunli Li Weiyi Su |
author_sort |
Honghai Wang |
title |
Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization |
title_short |
Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization |
title_full |
Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization |
title_fullStr |
Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization |
title_full_unstemmed |
Modification of Silica Xerogels with Polydopamine for Lipase B from Candida antarctica Immobilization |
title_sort |
modification of silica xerogels with polydopamine for lipase b from candida antarctica immobilization |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/catal11121463 https://doaj.org/article/9c2e69c3803240bab1aff6a824bb68b2 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Catalysts, Vol 11, Iss 1463, p 1463 (2021) |
op_relation |
https://www.mdpi.com/2073-4344/11/12/1463 https://doaj.org/toc/2073-4344 doi:10.3390/catal11121463 2073-4344 https://doaj.org/article/9c2e69c3803240bab1aff6a824bb68b2 |
op_doi |
https://doi.org/10.3390/catal11121463 |
container_title |
Catalysts |
container_volume |
11 |
container_issue |
12 |
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1463 |
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1766267605298970624 |