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Arif A, Ameer N, Hanif M, Mahmood K, Arif M, Shah AA, Nisar HR, Khan B, Khan WS, Dureshahwar. Lipase-copper complex/chitosan microspheres; loaded with attapulgite used for the treatment of E. coli-induced diarrhea. Int J Biol Macromol 2024; 277:134167. [PMID: 39067724 DOI: 10.1016/j.ijbiomac.2024.134167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 07/14/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
Diarrhea is a globally major problem especially Escherichia coli induced diarrhea becoming fatal nowadays in developing countries. Colon-targeted chitosan microspheres (Ms) comprising of lipase‑zinc and lipase‑copper complexes were prepared, loaded with Attapulgite (Cts-Li-Zn-ATG/Ms and Cts-Li-Cu-ATG/Ms) for the treatment of bacterial diarrhea. Thin layer chromatography (TLC) and Fourier-transform infrared spectroscopy (FTIR) studies were used for confirmation of proposed lipase-metal complexes. Ms showed particle size range 18 ± 0.24 to 23 ± 0.83 μm, zeta potential -13.7 ± 0.71 to -29.3 ± 1.34 mV, PDI 0.5 ± 0.04 to 1.0 ± 0.07 and hemolytic activity was found to be <5 ± 1.25 %. After coating with Eudragit S-100 for colon targeting, in-vitro % drug release of ATG at pH 7.4 was 80 ± 0.21 % for Eud-Cts-Li-Zn-ATG/Ms while it was increased to 83 ± 0.54 % for Eud-Cts-Li-Cu-ATG/Ms within 7 h, respectively. In-vivo anti-diarrheal activity of Eud-Cts-Li-Zn-ATG/Ms and Eud-Cts-Li-Cu-ATG/Ms was performed by oral challenge on albino mice having infectious diarrhea colonized with E. coli. Results revealed significant anti-diarrheal effect of proposed Eud-Cts-Li-Cu-ATG/Ms in terms of weight gain from 24 ± 0.12 g to 26.05 ± 0.31 g, which was 2-fold increase as compared to Eud-Cts-Li-Zn-ATG/Ms. Conclusively, Eud-Cts-Li-Cu-ATG/Ms provides an innovative alternate for the treatment of bacterial diarrhea with additional support of chitosan and lipase for nutritional support and immunity which was compromised in diarrheal patients.
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Affiliation(s)
- Aimen Arif
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Nabeela Ameer
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Hanif
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan.
| | - Khalid Mahmood
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan.
| | | | - Amir Asad Shah
- Department of Pathology, Nishtar Medical University, Multan, Pakistan
| | - Hafiza Razia Nisar
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Bushra Khan
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Waheed S Khan
- National Institute for Biotechnology & Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Dureshahwar
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
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Feng Y, Bazzar M, Hernaez M, Barreda D, Mayes AG, González Z, Melendi-Espina S. Unveiling the potential of cellulose, chitosan and polylactic acid as precursors for the production of green carbon nanofibers with controlled morphology and diameter. Int J Biol Macromol 2024; 269:132152. [PMID: 38723811 DOI: 10.1016/j.ijbiomac.2024.132152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/22/2024] [Accepted: 05/05/2024] [Indexed: 05/30/2024]
Abstract
Carbon nanofibers (CNFs) are very promising materials with application in many fields, such as sensors, filtration systems, and energy storage devices. This study aims to explore the use of eco-friendly biopolymers for CNF production, finding novel, suitable and sustainable precursors and thus prioritising environmentally conscious processes and ecological compatibility. Polymeric nanofibers (PNFs) using cellulose acetate, polylactic acid, and chitosan as precursors were successfully prepared via electrospinning. Rheological testing was performed to determine suitable solution concentrations for the production of PNFs with controlled diameter and appropriate morphology. Their dimensions and structure were found to be significantly influenced by the solution concentration and electrospinning flow rate. Subsequently, the electrospun green nanofibers were subject to stabilisation and carbonisation to convert them into CNFs. Thermal behaviour and chemical/structural changes of the nanofibers during stabilisation were investigated by means of thermogravimetric analysis and Fourier-transform infrared spectroscopy, while the final morphology of the fibers after stabilisation and carbonisation was examined through scanning electron microscopy to determine the optimal stabilisation parameters. The optimal fabrication parameters for cellulose and chitosan-based CNFs with excellent morphology and thermal stability were successfully established, providing valuable insight and methods for the sustainable and environmentally friendly synthesis of these promising materials.
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Affiliation(s)
- Yifan Feng
- School of Engineering, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, UK
| | - Masoomeh Bazzar
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, UK
| | - Miguel Hernaez
- School of Engineering, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, UK
| | - Daniel Barreda
- Instituto de Ciencia y Tecnología del Carbono (INCAR), CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | - Andrew G Mayes
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, UK
| | - Zoraida González
- Instituto de Ciencia y Tecnología del Carbono (INCAR), CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | - Sonia Melendi-Espina
- School of Engineering, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, UK.
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Welter RA, Santana HS, Carvalho BG, Melani N, Oelgemöller M, de la Torre LG, Taranto OP. Droplet microfluidics for double lipase immobilisation using TiO2 and alginate microbeads. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Optimization and characterization of immobilized laccase on titanium dioxide nanostructure and its application in removal of Remazol Brilliant Blue R. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Lee JY, Choi PS, Yang SD, Park JH. TiO 2 Decorated Low-Molecular Chitosan a Microsized Adsorbent for a 68Ge/ 68Ga Generator System. Molecules 2021; 26:molecules26113185. [PMID: 34073450 PMCID: PMC8198501 DOI: 10.3390/molecules26113185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 11/16/2022] Open
Abstract
We report column material for a 68Ge/68Ga generator with acid resistance and excellent adsorption and desorption capacity of 68Ge and 68Ga, respectively. Despite being a core element of the 68Ge/68Ga generator system, research on this has been insufficient. Therefore, we synthesized a low molecular chitosan-based TiO2 (LC-TiO2) adsorbent via a physical trapping method as a durable 68Ge/68Ga generator column material. The adsorption/desorption studies exhibited a higher separation factor of 68Ge/68Ga in the concentration range of HCl examined (0.01 M to 1.0 M). The prepared LC-TiO2 adsorbent showed acid resistance capabilities with >93% of 68Ga elution yield and 1.6 × 10-4% of 68Ge breakthrough. In particular, the labeling efficiency of DOTA and NOTA, by using the generator eluted 68Ga, was quite encouraging and confirmed to be 99.65 and 99.69%, respectively. Accordingly, the resulting behavior of LC-TiO2 towards 68Ge/68Ga adsorption/desorption capacity and stability with aqueous HCl exhibited a high potential for ion-exchange solid-phase extraction for the 68Ge/68Ga generator column material.
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Different strategies for the lipase immobilization on the chitosan based supports and their applications. Int J Biol Macromol 2021; 179:170-195. [PMID: 33667561 DOI: 10.1016/j.ijbiomac.2021.02.198] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 01/15/2023]
Abstract
Immobilized enzymes have received incredible interests in industry, pharmaceuticals, chemistry and biochemistry sectors due to their various advantages such as ease of separation, multiple reusability, non-toxicity, biocompatibility, high activity and resistant to environmental changes. This review in between various immobilized enzymes focuses on lipase as one of the most practical enzyme and chitosan as a preferred biosupport for lipase immobilization and provides a broad range of studies of recent decade. We highlight several aspects of lipase immobilization on the surface of chitosan support containing various types of lipase and immobilization techniques from physical adsorption to covalent bonding and cross-linking with their benefits and drawbacks. The recent advances and future perspectives that can improve the present problems with lipase and chitosan such as high-price of lipase and low mechanical resistance of chitosan are also discussed. According to the literature, optimization of immobilization methods, combination of these methods with other techniques, physical and chemical modifications of chitosan, co-immobilization and protein engineering can be useful as a solution to overcome the mentioned limitations.
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Atiroğlu V, Atiroğlu A, Özacar M. Immobilization of α-amylase enzyme on a protein @metal-organic framework nanocomposite: A new strategy to develop the reusability and stability of the enzyme. Food Chem 2021; 349:129127. [PMID: 33561794 DOI: 10.1016/j.foodchem.2021.129127] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 12/15/2022]
Abstract
Metal-organic structures (MOFs) have been designed for a wide range of applications due to their high porosity, large surface area, and flexibility. For the first time in this work, the successful immobilization of α-amylase is confirmed by the use of ZIF-8 as easy and good support. The morphology, functional groups, and chemical composition of the support and immobilized α-amylase were tested using different methods such as scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermal gravimetric analysis (TGA). The enzymatic activities of the immobilized olibanum-bovine serum albumin@zeolitic imidazolate frameworks nanocomposite (OLB/BSA@ZIF-8)-α-amylase were compared with the free one. The pH and thermal stability of the OLB/BSA@ZIF-8-α-amylase were significantly enhanced compared to the free enzyme. The OLB/BSA@ZIF-8-α-amylase displayed excellent long-term storage stability, which could protect more than 90% of the initial activity for 8 weeks. Besides, the OLB/BSA@ZIF-8-α-amylase had high reusability, which showed a high degree of activity (more than 81%) after 20 cycles. This is the first study that uses OLB/BSA@ZIF-8 nanocomposite as immobilizing support for the immobilization of α-amylase. Improved catalytic efficiency (Vmax/Km) values, reusability, and storage stability of immobilized α-amylase can make it suitable in industrial and biotechnological applications.
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Affiliation(s)
- Vesen Atiroğlu
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application and Research Center (BIMAS-RC), 54187 Sakarya, Turkey.
| | - Atheer Atiroğlu
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application and Research Center (BIMAS-RC), 54187 Sakarya, Turkey
| | - Mahmut Özacar
- Sakarya University, Science & Arts Faculty, Department of Chemistry, 54187 Sakarya, Turkey; Sakarya University, Biomaterials, Energy, Photocatalysis, EnzymeTechnology, Nano & Advanced Materials, Additive Manufacturing, Environmental Applications and Sustainability Research & Development Group (BIOENAMS R & D Group), 54187 Sakarya, Turkey
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Chen YC, Liao CH, Shen WT, Su C, Wu YC, Tsai MH, Hsiao SS, Yu KP, Tseng CH. Effective disinfection of airborne microbial contamination in hospital wards using a zero-valent nano-silver/TiO 2 -chitosan composite. INDOOR AIR 2019; 29:439-449. [PMID: 30738001 DOI: 10.1111/ina.12543] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
A novel antimicrobial composite of zero-valent silver nanoparticles (AgNPs), titania (TiO2 ), and chitosan (CS) was prepared via photochemical deposition of AgNPs on a CS-TiO2 matrix (AgNPs@CS-TiO2 ). Electron microscopy showed that the AgNPs were well dispersed on the CS-TiO2 , with diameters of 6.69-8.84 nm. X-ray photoelectron spectra indicated that most of the AgNPs were reduced to metallic Ag. Fourier-transform infrared spectroscopy indicated that some AgNPs formed a chelate with CS through coordination of Ag+ with the CS amide II groups. The zones of inhibition of AgNPs@CS-TiO2 for bacteria (Escherichia coli and Staphylococcus epidermidis) and fungi (Aspergillus niger and Penicillium spinulosum) were 6.72-11.08 and 5.45-5.77 mm, respectively, and the minimum (critical) concentrations of AgNPs required to inhibit the growth of bacteria and fungi were 7.57 and 16.51 µg-Ag/mm2 , respectively. The removal efficiency of a AgNPs@TiO2 -CS bed filter for bioaerosols (η) increased with the packing depth, and the optimal filter quality (qF) occurred for packing depths of 2-4 cm (qF = 0.0285-0.103 Pa-1 ; η = 57.6%-98.2%). When AgNPs@TiO2 -CS bed filters were installed in the ventilation systems of hospital wards, up to 88% of bacteria and 97% of fungi were removed within 30 minutes. Consequently, AgNPs@TiO2 -CS has promising potentials in bioaerosol purification.
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Affiliation(s)
- Yen-Chi Chen
- Institute of Environmental and Occupational Health Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chun-Hsing Liao
- Department of Internal Medicine, Far-Eastern Memosrial Hospital, New Taipei City, Taiwan, ROC
- Department of Medicine, National Yang-Ming University, Taiwan, ROC
| | - Wan-Tien Shen
- Institute of Environmental and Occupational Health Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chien Su
- Institute of Environmental and Occupational Health Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yu-Chiao Wu
- Institute of Environmental and Occupational Health Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Ming-Hsuan Tsai
- Institute of Environmental and Occupational Health Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Shui-Shu Hsiao
- Office of Medical Engineering, Far-Eastern Memorial Hospital, New Taipei City, Taiwan, ROC
| | - Kuo-Pin Yu
- Institute of Environmental and Occupational Health Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chao-Heng Tseng
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei, Taiwan, ROC
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Suo H, Gao Z, Xu L, Xu C, Yu D, Xiang X, Huang H, Hu Y. Synthesis of functional ionic liquid modified magnetic chitosan nanoparticles for porcine pancreatic lipase immobilization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:356-364. [PMID: 30606543 DOI: 10.1016/j.msec.2018.11.041] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 10/24/2018] [Accepted: 11/24/2018] [Indexed: 10/27/2022]
Abstract
We developed magnetic chitosan nanoparticles (CS‑Fe3O4) with mean diameter of 15-20 nm. Subsequently, these inorganic-organic composite nanoparticles were modified using an imidazole-based functional ionic liquid (IL). The prepared support (IL‑CS‑Fe3O4), which was used to immobilize porcine pancreatic lipase (PPL), was characterized using Fourier transform infrared (FTIR) spectroscopy, vibrating sample magnetometry (VSM), thermogravimetry (TG), transmission electron microscopy (TEM) and X-ray diffraction (XRD). Circular dichroism (CD) was used to analyze the secondary structure of immobilized PPL. The immobilized PPL (PPL‑IL‑CS‑Fe3O4) exhibited 1.93-fold higher specific activity than PPL‑CS-Fe3O4 when triacetin was used as the substrate, and showed 95 mg/g of lipase immobilization capacity and 382% of activity recovery. The residual activity of PPL‑IL‑CS‑Fe3O4 was above 60% of the initial activity after incubation at 50 °C for 6 h, as was higher than that of PPL‑CS‑Fe3O4 which showed 40% of the initial activity. In addition, PPL‑IL‑CS‑Fe3O4 retained 84.6% of the initial activity after 10 cycles, whereas PPL‑CS‑Fe3O4 retained only 75.5% activity. Furthermore, the kinetic parameters, apparent Km and Vmax of PPL‑IL‑CS‑Fe3O4 were 2.51 mg/mL and 1.395 U/mg respectively, these results indicated that the immobilized PPL had better affinity towards the substrate, especially when the nanoparticles were modified by functional IL. Besides, the magnetic chitosan nanoparticles loaded with PPL were easily recovered. A novel, efficient, and practical method for enzyme immobilization was developed.
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Affiliation(s)
- Hongbo Suo
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China; College of Chemistry and Environmental Science, Qujing Normal University, Qujing 655011, China
| | - Zhen Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China
| | - Lili Xu
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing 655011, China
| | - Chao Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China
| | - Dinghua Yu
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China
| | - Xinran Xiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China
| | - He Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China.
| | - Yi Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China.
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Asmat S, Husain Q. Exquisite stability and catalytic performance of immobilized lipase on novel fabricated nanocellulose fused polypyrrole/graphene oxide nanocomposite: Characterization and application. Int J Biol Macromol 2018; 117:331-341. [PMID: 29857098 DOI: 10.1016/j.ijbiomac.2018.05.216] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 05/27/2018] [Accepted: 05/28/2018] [Indexed: 01/09/2023]
Abstract
This work was performed to describe the facile procedure of a novel nanobiocatalyst, nano cellulose fused polypyrrole/graphene oxide nanocomposite for the efficacious immobilization of lipase, a versatile hydrolytic enzyme having potential applications in industries. The fabricated nanocomposite was characterized using Fourier transform infrared spectroscopy, differential thermal analysis, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy, atomic force microscopy, transmission electron microscopy, and Candida rugosa lipase was immobilized onto nanocomposite through physical adsorption. The catalytic efficiency and operational stabilities of immobilized lipase were improved significantly compared to the free lipase. The reusability profile outcomes showed that the immobilized lipase formulation was an outstanding nanobiocatalyst as it retained 85% of its original catalytic activity after 10 cycles of application. The nanobiocatalyst was employed for the synthesis of the fruit flavour compound, ethyl acetoacetate. The immobilized lipase successfully synthesised flavour compound in solvent free media and n-hexane having 27.5% and 75.5% ester yields respectively. Moreover, these outcomes demonstrating graphene oxide modified carrier induced stabilization, amended solvent tolerance and operational stability of immobilized enzyme, will have quintessential influence on practical scale up of biotechnological industries.
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Affiliation(s)
- Shamoon Asmat
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Qayyum Husain
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
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11
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Lipase immobilization on functionalized mesoporous TiO 2 : Specific adsorption, hyperactivation and application in cinnamyl acetate synthesis. Process Biochem 2018. [DOI: 10.1016/j.procbio.2017.09.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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12
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Gilani SL, Najafpour GD, Heydarzadeh HD, Moghadamnia A. Enantioselective synthesis of (S)-naproxen using immobilized lipase on chitosan beads. Chirality 2017; 29:304-314. [DOI: 10.1002/chir.22689] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/11/2016] [Accepted: 12/16/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Saeedeh L. Gilani
- Faculty of Chemical Engineering; Babol Noshirvani University of Technology; Babol Iran
| | - Ghasem D. Najafpour
- Faculty of Chemical Engineering; Babol Noshirvani University of Technology; Babol Iran
| | - Hamid D. Heydarzadeh
- Faculty of Petroleum and Petrochemical Engineering; Hakim Sabzevari University; Sabzevar Iran
| | - Aliakbar Moghadamnia
- Department of Pharmacology and Physiology, School of Medicine; Babol University of Medical Sciences; Babol Iran
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13
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Implications of molecular diversity of chitin and its derivatives. Appl Microbiol Biotechnol 2017; 101:3513-3536. [DOI: 10.1007/s00253-017-8229-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/26/2017] [Accepted: 03/04/2017] [Indexed: 02/03/2023]
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14
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Asmat S, Husain Q, Azam A. Lipase immobilization on facile synthesized polyaniline-coated silver-functionalized graphene oxide nanocomposites as novel biocatalysts: stability and activity insights. RSC Adv 2017. [DOI: 10.1039/c6ra27926k] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Schematic representation of the preparation of PANI/Ag/GO-NCs and immobilization of lipase.
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Affiliation(s)
- Shamoon Asmat
- Department of Biochemistry
- Faculty of Life Sciences
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Qayyum Husain
- Department of Biochemistry
- Faculty of Life Sciences
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Ameer Azam
- Centre of Excellence in Material Sciences (Nanomaterials)
- Zakir Husain College of Engineering and Technology
- Aligarh Muslim University
- Aligarh-202002
- India
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15
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Ji X, Liu J, Liu L, Zhao H. Enzyme-polymer hybrid nanogels fabricated by thiol-disulfide exchange reaction. Colloids Surf B Biointerfaces 2016; 148:41-48. [DOI: 10.1016/j.colsurfb.2016.08.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 08/23/2016] [Accepted: 08/25/2016] [Indexed: 12/26/2022]
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16
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Gilani SL, Najafpour GD, Moghadamnia A, Kamaruddin AH. Stability of immobilized porcine pancreas lipase on mesoporous chitosan beads: A comparative study. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.08.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Chaves S, Pera LM, Avila CL, Romero CM, Baigori M, Morán Vieyra FE, Borsarelli CD, Chehin RN. Towards efficient biocatalysts: photo-immobilization of a lipase on novel lysozyme amyloid-like nanofibrils. RSC Adv 2016. [DOI: 10.1039/c5ra19590j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Photoimmobilization of enzymes on an amyloid-like fibrillar scaffold.
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Affiliation(s)
- Silvina Chaves
- Instituto Superior de Investigaciones Biológicas (INSIBIO)
- CONICET-UNT, and Instituto de Química Biológica “Dr Bernabé Bloj”
- Facultad de Bioquímica
- Química y Farmacia
- UNT
| | - Licia M. Pera
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET)
- San Miguel de Tucumán
- Argentina
- Facultad de Bioquímica
- Química, Farmacia
| | - Cesar Luis Avila
- Instituto Superior de Investigaciones Biológicas (INSIBIO)
- CONICET-UNT, and Instituto de Química Biológica “Dr Bernabé Bloj”
- Facultad de Bioquímica
- Química y Farmacia
- UNT
| | - Cintia M. Romero
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET)
- San Miguel de Tucumán
- Argentina
- Facultad de Bioquímica
- Química, Farmacia
| | - Mario Baigori
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET)
- San Miguel de Tucumán
- Argentina
- Facultad de Bioquímica
- Química, Farmacia
| | - F. Eduardo Morán Vieyra
- Instituto de Bionanotecnología
- INBIONATEC-CONICET
- Universidad Nacional de Santiago del Estero (UNSE)
- Santiago del Estero
- Argentina
| | - Claudio D. Borsarelli
- Instituto de Bionanotecnología
- INBIONATEC-CONICET
- Universidad Nacional de Santiago del Estero (UNSE)
- Santiago del Estero
- Argentina
| | - Rosana N. Chehin
- Instituto Superior de Investigaciones Biológicas (INSIBIO)
- CONICET-UNT, and Instituto de Química Biológica “Dr Bernabé Bloj”
- Facultad de Bioquímica
- Química y Farmacia
- UNT
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