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Luo X, Al-Antaki AHM, Igder A, Stubbs KA, Su P, Zhang W, Weiss GA, Raston CL. Vortex Fluidic-Mediated Fabrication of Fast Gelated Silica Hydrogels with Embedded Laccase Nanoflowers for Real-Time Biosensing under Flow. ACS APPLIED MATERIALS & INTERFACES 2020; 12:51999-52007. [PMID: 33151682 PMCID: PMC9943686 DOI: 10.1021/acsami.0c15669] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The fabrication of hybrid protein-Cu3(PO4)2 nanoflowers (NFs) via an intermediate toroidal structure is dramatically accelerated under shear using a vortex fluidic device (VFD), which possesses a rapidly rotating angled tube. As-prepared laccase NFs (LNFs) exhibit ≈1.8-fold increase in catalytic activity compared to free laccase under diffusion control, which is further enhanced by ≈ 2.9-fold for the catalysis under shear in the VFD. A new LNF immobilization platform, LNF@silica incorporated in a VFD tube, was subsequently developed by mixing the LNFs for 15 min with silica hydrogel resulting in gelation along the VFD tube surface. The resulting LNFs@silica coating is highly stable and reusable, which allows a dramatic 16-fold enhancement in catalytic rates relative to LNF@silica inside glass vials. Ultraviolet-visible spectroscopy-based real-time monitoring within the LNFs@silica-coated tube reveals good stability of the coating in continuous flow processing. The results demonstrate the utility of the VFD microfluidic platform, further highlighting its ability to control chemical and enzymatic processes.
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Affiliation(s)
- Xuan Luo
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
- Corresponding Author: . Phone: +61 8 820 12883. (X.L.), . Phone: +61 8 82017958. Fax: +61 8 8201290 (C.L.R)
| | - Ahmed Hussein Mohammed Al-Antaki
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
| | - Aghil Igder
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
- School of Engineering, Edith Cowan University, Joondalup, Perth, WA 6027, Australia
| | - Keith A. Stubbs
- School of Molecular Sciences, The University of Western Australia, Crawley, WA, 6009, Australia
| | - Peng Su
- Centre for Marine Bioproducts Development, Flinders University, Adelaide, South Australia 5042, Australia
| | - Wei Zhang
- Centre for Marine Bioproducts Development, Flinders University, Adelaide, South Australia 5042, Australia
| | - Gregory A. Weiss
- Department of Chemistry, University of California Irvine, CA, 92697-2025, USA
| | - Colin L. Raston
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
- Corresponding Author: . Phone: +61 8 820 12883. (X.L.), . Phone: +61 8 82017958. Fax: +61 8 8201290 (C.L.R)
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Peng X, Yuan XZ, Liu H, Zeng GM, Chen XH. Degradation of Polycyclic Aromatic Hydrocarbons (PAHs) by Laccase in Rhamnolipid Reversed Micellar System. Appl Biochem Biotechnol 2015; 176:45-55. [PMID: 25637508 DOI: 10.1007/s12010-015-1508-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 01/21/2015] [Indexed: 12/01/2022]
Abstract
Rhamnolipid was applied to degrade anthracene and pyrene in reversed micelles. The parameters in degradation were optimized for the purpose of improving degradation rates. The proper amount of rhamnolipid (RL) used for degrading anthracene was 0.065 mM, while 0.075 mM for pyrene. However, reaction time for degrading both anthracene and pyrene was 48 h. The optimum water content, pH, laccase concentration, polycyclic aromatic hydrocarbon (PAH) initial concentration, and volume ratio of n-hexanol to isooctane for both were found out. The highest degradation rates of anthracene and pyrene were 37.52 and 25.58%, respectively. Although the degradation rates were not higher than the results previous literatures reported, this method was of novelty and provided guidance in application in degrading PAHs by reversed micellar system, especially for biosurfactant-based reversed micelles.
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Affiliation(s)
- Xin Peng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China,
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Cui K, Yuan X, Sun T, Huang H, Peng X, Zhang Y, Zeng G, Fu L. Laccase behavior in the microenvironment of water core within a biosurfactant-based reversed micelles system rhamnolipid/n-hexanol/isooctane/water. SURF INTERFACE ANAL 2015. [DOI: 10.1002/sia.5737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kailong Cui
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
| | - Ting Sun
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
| | - Huajun Huang
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
| | - Xin Peng
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
| | - Yongqiang Zhang
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
| | - Lihuan Fu
- College of Environmental Science and Engineering; Hunan University; Changsha 410082 PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University); Ministry of Education; Changsha 410082 PR China
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Díaz-Rodríguez A, Martínez-Montero L, Lavandera I, Gotor V, Gotor-Fernández V. Laccase/2,2,6,6-Tetramethylpiperidinoxyl Radical (TEMPO): An Efficient Catalytic System for Selective Oxidations of Primary Hydroxy and Amino Groups in Aqueous and Biphasic Media. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400260] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Effect of cross-linking method on the activity of spray-dried chitosan microparticles with immobilized laccase. FOOD AND BIOPRODUCTS PROCESSING 2013. [DOI: 10.1016/j.fbp.2013.06.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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