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Ghannadi S, Abdizadeh H, Miroliaei M, Saboury AA. Immobilization of Alcohol Dehydrogenase on Titania Nanoparticles To Enhance Enzyme Stability and Remove Substrate Inhibition in the Reaction of Formaldehyde to Methanol. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01370] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Mehran Miroliaei
- Department of Biology, Faculty of Science, University of Isfahan, Isfahan, Iran, 81746-73441
| | - Ali Akbar Saboury
- Institute of Biophysics and Biochemistry, University of Tehran, Tehran, Iran, 1417614411
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Chen J, Leng J, Yang X, Liao L, Liu L, Xiao A. Enhanced Performance of Magnetic Graphene Oxide-Immobilized Laccase and Its Application for the Decolorization of Dyes. Molecules 2017; 22:molecules22020221. [PMID: 28157159 PMCID: PMC6155931 DOI: 10.3390/molecules22020221] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 01/27/2017] [Indexed: 12/31/2022] Open
Abstract
In this study, magnetic graphene oxide (MGO) nanomaterials were synthesized based on covalent binding of amino Fe3O4 nanoparticles onto the graphene oxide (GO), and the prepared MGO was successfully applied as support for the immobilization of laccase. The MGO-laccase was characterized by transmission electron microscopy (TEM) and a vibrating sample magnetometer (VSM). Compared with free laccase, the MGO-laccase exhibited better pH and thermal stabilities. The optimum pH and temperature were confirmed as pH 3.0 and 35 °C. Moreover, the MGO-laccase exhibited sufficient magnetic response and satisfied reusability after being retained by magnetic separation. The MGO-laccase maintained 59.8% activity after ten uses. MGO-laccase were finally utilized in the decolorization of dye solutions and the decolorization rate of crystal violet (CV), malachite green (MG), and brilliant green (BG) reached 94.7% of CV, 95.6% of MG, and 91.4% of BG respectively. The experimental results indicated the MGO-laccase nanomaterials had a good catalysis ability to decolorize dyes in aqueous solution. Compared with the free enzyme, the employment of MGO as enzyme immobilization support could efficiently enhance the availability and facilitate the application of laccase.
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Affiliation(s)
- Jing Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
| | - Juan Leng
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
| | - Xiai Yang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
| | - Liping Liao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
| | - Liangliang Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
| | - Aiping Xiao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
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Constructing Biopolymer-Inorganic Nanocomposite through a Biomimetic Mineralization Process for Enzyme Immobilization. MATERIALS 2015; 8:6004-6017. [PMID: 28793547 PMCID: PMC5512666 DOI: 10.3390/ma8095286] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/15/2015] [Indexed: 02/03/2023]
Abstract
Inspired by biosilicification, biomimetic polymer-silica nanocomposite has aroused a lot of interest from the viewpoints of both scientific research and technological applications. In this study, a novel dual functional polymer, NH₂-Alginate, is synthesized through an oxidation-amination-reduction process. The "catalysis function" ensures the as-prepared NH₂-Alginate inducing biomimetic mineralization of silica from low concentration precursor (Na₂SiO₃), and the "template function" cause microscopic phase separation in aqueous solution. The diameter of resultant NH₂-Alginate micelles in aqueous solution distributed from 100 nm to 1.5 μm, and is influenced by the synthetic process of NH₂-Alginate. The size and morphology of obtained NH₂-Alginate/silica nanocomposite are correlated with the micelles. NH₂-Alginate/silica nanocomposite was subsequently utilized to immobilize β-Glucuronidase (GUS). The harsh condition tolerance and long-term storage stability of the immobilized GUS are notably improved due to the buffering effect of NH₂-Alginate and cage effect of silica matrix.
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Alam MF, Laskar AA, Zubair M, Baig U, Younus H. Immobilization of yeast alcohol dehydrogenase on polyaniline coated silver nanoparticles formed by green synthesis. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.06.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Han P, Song X, Wu H, Jiang Z, Shi J, Wang X, Zhang W, Ai Q. Enhancing Catalytic Activity and Stability of Yeast Alcohol Dehydrogenase by Encapsulation in Chitosan-Calcium Phosphate Hybrid Beads. Ind Eng Chem Res 2015. [DOI: 10.1021/ie503294a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pingping Han
- Key Laboratory
for Green Chemical Technology of Ministry of Education, School of
Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xiaokai Song
- Key Laboratory
for Green Chemical Technology of Ministry of Education, School of
Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Hong Wu
- Key Laboratory
for Green Chemical Technology of Ministry of Education, School of
Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Zhongyi Jiang
- Key Laboratory
for Green Chemical Technology of Ministry of Education, School of
Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jiafu Shi
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- School of Environment
Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Xiaoli Wang
- Key Laboratory
for Green Chemical Technology of Ministry of Education, School of
Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Wenyan Zhang
- Key Laboratory
for Green Chemical Technology of Ministry of Education, School of
Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Qinghong Ai
- Key Laboratory
for Green Chemical Technology of Ministry of Education, School of
Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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Baig U, Gondal MA, Alam MF, Laskar AA, Alam M, Younus H. Enzyme immobilization and molecular modeling studies on an organic–inorganic polypyrrole–titanium(iv)phosphate nanocomposite. NEW J CHEM 2015. [DOI: 10.1039/c5nj01463h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A polypyrrole–titanium(iv)phosphate nanocomposite was synthesized by using facile chemical oxidative polymerization of pyrrole in the presence of titanium(iv)phosphate for YADH immobilization.
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Affiliation(s)
- Umair Baig
- Center of Excellence for Scientific Research Collaboration with MIT
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
- Laser Research Group
| | - Mohammed Ashraf Gondal
- Center of Excellence for Scientific Research Collaboration with MIT
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
- Laser Research Group
| | - Md Fazle Alam
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Amaj Ahmed Laskar
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Mahboob Alam
- Division of Bioscience
- Dongguk University
- Gyeongju 780-714
- Republic of Korea
| | - Hina Younus
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
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