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Rohilla P, Chhikara A, Dahiya P. Biogenic synthesis of AuNPs using Solanum virginianum L. and their antibacterial, antioxidant and catalytic applications. Indian J Microbiol 2023; 63:562-574. [PMID: 38031596 PMCID: PMC10682358 DOI: 10.1007/s12088-023-01114-4] [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: 04/26/2023] [Accepted: 10/11/2023] [Indexed: 12/01/2023] Open
Abstract
Biogenic synthesis of nanoparticles is gaining popularity worldwide because of being ecofriendly as well as economical, with minimal production of hazardous by-products. The present study was targeted to determine the antibacterial, free radical scavenging and catalytic activity of gold nanoparticles synthesized from Solanum virginianum L. (Sv-AuNPs). After addition of auric chloride, the color of aqueous plant extract changed from light yellow to purple-red, indicating the formation of nanoparticles. A strong peak at 536 nm affirmed synthesis of Sv-AuNPs, and negative zeta potential (- 30.7) indicated their being wrapped in anions. They exhibited face-centered cubic and crystalline nature as revealed by X-ray diffraction. Elemental composition of Sv-AuNPs was ascertained by energy-dispersive X-ray spectroscopy, and a sharp peak at 2.2 keV confirmed the presence of gold. The shape of Sv-AuNPs synthesized was spherical with size ranging from 29.1 ± 1 nm to 51.2 ± 0.7 nm. Antibacterial potential was evaluated against E. coli, C. violaceum, K. pneumoniae, P. aeruginosa, B. subtilis, M. smegmatis, and S. aureus and was found to be greater than aqueous plant extract. Sv-AuNPs exhibited antioxidant potential comparable to ascorbic acid, demonstrating their vital role in the prevention of reactive oxygen species related diseases. Apart from their pharmaceutical potential, these nanoparticles also exhibited promising catalytic efficacy. They degraded harmful dyes i.e. 4-nitro phenol (4-NP) and congo red (CR) at a very low concentration of 50 µg/ml. This is the first report on the antibacterial, antioxidant, and catalytic properties of Sv-AuNPs and we hope it will lead the way for nanoparticles multifunctionality. Graphical abstract
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Affiliation(s)
- Preety Rohilla
- Department of Botany, Maharshi Dayanand University, Rohtak, Haryana 124001 India
| | - Ashmita Chhikara
- Department of Botany, Maharshi Dayanand University, Rohtak, Haryana 124001 India
| | - Pushpa Dahiya
- Department of Botany, Maharshi Dayanand University, Rohtak, Haryana 124001 India
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2
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Laxmi V, Singhvi N, Ahmad N, Sinha S, Negi T, Gupta V, Mubashshir M, Ahmad A, Sharma S. Emerging Field of Nanotechnology in Environment. Indian J Microbiol 2023; 63:244-252. [PMID: 37781004 PMCID: PMC10533467 DOI: 10.1007/s12088-023-01092-7] [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: 01/09/2023] [Accepted: 08/10/2023] [Indexed: 10/03/2023] Open
Abstract
The art of utilizing and manipulating micro materials have been dated back to antient era. With the advancement in technologies, the state-of-art methods of nano technologies and nano sciences has been employed in various sectors including environment, product designing, food industry, pharmaceuticals industries to way out solve standard problem of mankind. Due to rapid industrialization and the alarming levels of pollution there has been an urgent need to address the environmental and energy issues. Environmental sustainability concerns the global climate change and pollution including air, water, soil. The field of nanotechnology has proven to be a promising field where sensing and remediation, have been dramatically advanced by the use of nanomaterials. This emergent science of surface to mass ratio is the principle theorem for manipulating structure at molecular levels. The review sums up all the advancements in the field of nanotechnology and their recent application in the environment. New opportunities and challenges have also been discussed in detail to understand the use of nanotechnology as problem-to-solution ratio. Graphical abstract Image depicting the application of nanotechnology in environmental concerns. The combinations of technologies like bioremediations, bioaugmentations with state-of-the-art nanotechnology like carbon nanotubes and Nano capsules to answer the environmental challenges of soil quality, and plant productivity.
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Affiliation(s)
- Vijya Laxmi
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
| | - Nirjara Singhvi
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
| | - Nabeel Ahmad
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
| | - Shruti Sinha
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
| | - Tripti Negi
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
| | - Vipin Gupta
- Ministry of Environment, Forest and Climate Change, Integrated Regional Office, Dehradun, Uttarakhand 248001 India
| | - Muhammad Mubashshir
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
- Faculty of Basic and Applied Sciences, Vivekananda Global University, Jaipur, India
| | - Adnan Ahmad
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh 226026 India
| | - Sandeep Sharma
- School of Engineering and Computing, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
- Omkarr Tech Solutions, Dehradun, Uttarakhand 248001 India
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3
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Aman S, Kaur N, Mittal D, Sharma D, Shukla K, Singh B, Sharma A, Siwal SS, Thakur VK, Joshi H, Gupta R, Saini RV, Saini AK. Novel Biocompatible Green Silver Nanoparticles Efficiently Eliminates Multidrug Resistant Nosocomial Pathogens and Mycobacterium Species. Indian J Microbiol 2023; 63:73-83. [PMID: 37188239 PMCID: PMC10172440 DOI: 10.1007/s12088-023-01061-0] [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: 12/06/2022] [Accepted: 01/25/2023] [Indexed: 02/08/2023] Open
Abstract
Bacterial infection is a major crisis of 21st era and the emergence of multidrug resistant (MDR) pathogens cause significant health problems. We developed, green chemistry-based silver nanoparticles (G-Ag NPs) using Citrus pseudolimon fruit peel extract. G-Ag NPs has a spherical shape in the range of ~ 40 nm with a surface charge of - 31 Mv. This nano-bioagent is an eco-friendly tool to combat menace of MDR. Biochemical tests prove that G-Ag NPs are compatible with human red blood cells and peripheral blood mononuclear cells. There have been many reports on the synthesis of silver nanoparticles, but this study suggests a green technique for making non-cytotoxic, non-hemolytic organometallic silver nanoparticles with a high therapeutic index for possible use in the medical field. On the same line, G-Ag NPs are very effective against Mycobacterium sp. and MDR strains including Escherichia coli, Klebsiella species, Pseudomonas aeruginosa, and Acinetobacter baumannii isolated from patient samples. Based on it, we filed a patent to Indian Patent Office (reference no. 202111048797) which can revolutionize the prevention of biomedical device borne infections in hospital pre/post-operated cases. This work could be further explored in future by in vivo experimentation with mice model to direct its possible clinical utility. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-023-01061-0.
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Affiliation(s)
- Shahbaz Aman
- Department of Microbiology, MMIMSR, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207 India
| | - Narinder Kaur
- Department of Microbiology, MMIMSR, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207 India
| | - Divya Mittal
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207 India
| | - Deepanjali Sharma
- Shoolini University of Biotechnology and Management Sciences, Solan, Himachal Pradesh 173229 India
| | - Komal Shukla
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016 India
| | - Bharat Singh
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207 India
| | - Anchita Sharma
- Division of Biology, Indian Institute of Science Education and Research, Tirupati, Andhra Pradesh 517641 India
| | - Samarjeet Singh Siwal
- Department of Chemistry, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207 India
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Centre, Scotland’s Rural College (SRUC), Kings Buildings, Edinburgh, EH9 3JG UK
- School of Engineering, University of Petroleum & Energy Studies (UPES), Uttarakhand 248007 Dehradun, India
| | - Hemant Joshi
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Raju Gupta
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016 India
- Department of Sustainable Energy Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016 India
- Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016 India
| | - Reena V. Saini
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207 India
| | - Adesh K. Saini
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207 India
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4
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Patel SKS, Kalia VC, Lee JK. Laccase Immobilization on Copper-Magnetic Nanoparticles for Efficient Bisphenol Degradation. J Microbiol Biotechnol 2023; 33:127-134. [PMID: 36457186 PMCID: PMC9895995 DOI: 10.4014/jmb.2210.10032] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/29/2022] [Accepted: 11/05/2022] [Indexed: 12/03/2022]
Abstract
Laccase activity is influenced by copper (Cu) as an inducer. In this study, laccase was immobilized on Cu and Cu-magnetic (Cu/Fe2O4) nanoparticles (NPs) to improve enzyme stability and potential applications. The Cu/Fe2O4 NPs functionally activated by 3-aminopropyltriethoxysilane and glutaraldehyde exhibited an immobilization yield and relative activity (RA) of 93.1 and 140%, respectively. Under optimized conditions, Cu/Fe2O4 NPs showed high loading of laccase up to 285 mg/g of support and maximum RA of 140% at a pH 5.0 after 24 h of incubation (4°C). Immobilized laccase, as Cu/Fe2O4-laccase, had a higher optimum pH (4.0) and temperature (45°C) than those of a free enzyme. The pH and temperature profiles were significantly improved through immobilization. Cu/Fe2O4-laccase exhibited 25-fold higher thermal stability at 65°C and retained residual activity of 91.8% after 10 cycles of reuse. The degradation of bisphenols was 3.9-fold higher with Cu/Fe2O4-laccase than that with the free enzyme. To the best of our knowledge, Rhus vernicifera laccase immobilization on Cu or Cu/Fe2O4 NPs has not yet been reported. This investigation revealed that laccase immobilization on Cu/Fe2O4 NPs is desirable for efficient enzyme loading and high relative activity, with remarkable bisphenol A degradation potential.
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Affiliation(s)
- Sanjay K. S. Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin C. Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea,Corresponding author Phone: +82-2-450-3505 Fax: +82-2-458-3504 E-mail:
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5
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Ghaffar I, Deepanraj B, Sundar LS, Vo DVN, Saikumar A, Hussain A. A review on the sustainable procurement of microalgal biomass from wastewaters for the production of biofuels. CHEMOSPHERE 2023; 311:137094. [PMID: 36334745 DOI: 10.1016/j.chemosphere.2022.137094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/22/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
The feasibility of microalgal biomass as one of the most promising and renewable sources for the production of biofuels is being studied extensively. Microalgal biomass can be cultivated under photoautotrophic, heterotrophic, photoheterotrophic, and mixotrophic cultivation conditions. Photoautotrophic cultivation is the most common way of microalgal biomass production. Under mixotrophic cultivation, microalgae can utilize both organic carbon and CO2 simultaneously. Mixotrophic cultivation depicts higher biomass productivity as compared to photoautotrophic cultivation. It is evident from the literature that mixotrophic cultivation yields higher quantities of polyunsaturated fatty acids as compared to that photoautotrophic cultivation. In this context, for economical biomass production, the organic carbon of industrial wastewaters can be valorized for the mixotrophic cultivation of microalgae. Following the way, contaminants' load of wastewaters can be reduced while concomitantly producing highly productive microalgal biomass. This review focuses on different aspects covering the sustainable cultivation of different microalgal species in different types of wastewaters.
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Affiliation(s)
- Imania Ghaffar
- Applied and Environmental Microbiology Laboratory, Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Balakrishnan Deepanraj
- Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, Saudi Arabia.
| | - Lingala Syam Sundar
- Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, Saudi Arabia
| | - Dai-Viet N Vo
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
| | - Algam Saikumar
- Department of Aeronautical Engineering, MLR Institute of Technology, Hyderabad, Telangana, India
| | - Ali Hussain
- Applied and Environmental Microbiology Laboratory, Institute of Zoology, University of the Punjab, Lahore, Pakistan.
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6
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Araújo R, González-González RB, Martinez-Ruiz M, Coronado-Apodaca KG, Reyes-Pardo H, Morreeuw ZP, Oyervides-Muñoz MA, Sosa-Hernández JE, Barceló D, Parra-Saldívar R, Iqbal HM. Expanding the Scope of Nanobiocatalysis and Nanosensing: Applications of Nanomaterial Constructs. ACS OMEGA 2022; 7:32863-32876. [PMID: 36157779 PMCID: PMC9494649 DOI: 10.1021/acsomega.2c03155] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/29/2022] [Indexed: 05/25/2023]
Abstract
The synergistic interaction between advanced biotechnology and nanotechnology has allowed the development of innovative nanomaterials. Those nanomaterials can conveniently act as supports for enzymes to be employed as nanobiocatalysts and nanosensing constructs. These systems generate a great capacity to improve the biocatalytic potential of enzymes by improving their stability, efficiency, and product yield, as well as facilitating their purification and reuse for various bioprocessing operating cycles. The different specific physicochemical characteristics and the supramolecular nature of the nanocarriers obtained from different economical and abundant sources have allowed the continuous development of functional nanostructures for different industries such as food and agriculture. The remarkable biotechnological potential of nanobiocatalysts and nanosensors has generated applied research and use in different areas such as biofuels, medical diagnosis, medical therapies, environmental bioremediation, and the food industry. The objective of this work is to present the different manufacturing strategies of nanomaterials with various advantages in biocatalysis and nanosensing of various compounds in the industry, providing great benefits to society and the environment.
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Affiliation(s)
- Rafael
G. Araújo
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
| | - Reyna Berenice González-González
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
| | - Manuel Martinez-Ruiz
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
| | - Karina G. Coronado-Apodaca
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
| | - Humberto Reyes-Pardo
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
| | - Zoé P. Morreeuw
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
| | - Mariel Araceli Oyervides-Muñoz
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
| | - Juan Eduardo Sosa-Hernández
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
| | - Damià Barceló
- Department
of Environmental Chemistry, Institute of
Environmental Assessment and Water Research, IDAEA-CSIC, Jordi Girona, 18-26, 08034 Barcelona, Spain
- Catalan
Institute for Water Research (ICRA-CERCA), Parc Científic i Tecnològic de la Universitat de Girona, c/Emili Grahit, 101, Edifici H2O, 17003 Girona, Spain
- Sustainability
Cluster, School of Engineering, UPES, 248007 Dehradun, India
| | - Roberto Parra-Saldívar
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
| | - Hafiz M.N. Iqbal
- Tecnologico
de Monterrey, School of Engineering
and Sciences, Monterrey 64849, Mexico
- Tecnologico
de Monterrey, Institute of Advanced Materials
for Sustainable Manufacturing, Monterrey 64849, Mexico
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Sharma P, Kumari R, Yadav M, Lal R. Evaluation of TiO 2 Nanoparticles Physicochemical Parameters Associated with their Antimicrobial Applications. Indian J Microbiol 2022; 62:338-350. [PMID: 35974921 PMCID: PMC9375816 DOI: 10.1007/s12088-022-01018-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/22/2022] [Indexed: 11/05/2022] Open
Abstract
Titanium dioxide nanoparticles (TiO2NPs) usage is increasing in everyday consumer products, hence, assessing their toxic impacts on living organisms and environment is essential. Various studies have revealed the significant role of TiO2NPs physicochemical properties on their toxicity. However, TiO2NPs are still poorly characterized with respect to their physicochemical properties, and environmental factors influencing their toxicity are either ignored or are too complex to be assessed under laboratory conditions. The outcomes of these studies are diverse and inconsistent due to lack of standard protocols. TiO2NPs toxicity also differs for in vivo and in vitro systems, which must also be considered during standardization of protocols to maintain uniformity and reproducibility of results. This review critically evaluates impact of different physicochemical parameters of TiO2NPs and other experimental conditions, employed in different laboratories in determining their toxicity towards bacteria. These important observations may be helpful in evaluation of environmental risks posed by these nanoparticles and this can further assist regulatory bodies in policymaking.
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Affiliation(s)
- Poonam Sharma
- Department of Zoology, Gargi College, University of Delhi, New Delhi, 110049 India
| | - Rekha Kumari
- Molecular Microbiology and Bioinformatics Laboratory, Department of Zoology, University of Delhi, Miranda House, Delhi, 110007 India
| | - Meena Yadav
- Department of Zoology, Maitreyi College, University of Delhi, New Delhi, India
| | - Rup Lal
- The Energy and Resources Institute, IHC Complex, Lodhi Road, New Delhi, 110003 India
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Singh R, Jha D, Dhawan U, Gautam HK, Kumar P. Therapeutic Applications of Self-assembled Indole-3-butanoyl-polyethylenimine Nanostructures. Indian J Microbiol 2022; 62:411-418. [PMID: 35974923 PMCID: PMC9375784 DOI: 10.1007/s12088-022-01015-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/06/2022] [Indexed: 12/24/2022] Open
Abstract
This study demonstrates the therapeutic potential of indole-3-butanoyl-polyethylenimine (IBP) nanostructures formed via self-assembly in aqueous system. Dynamic light scattering (DLS) analysis confirmed the formation of the nanostructures in the size range of ~ 194-331 nm. These nanostructures showed commendable antimicrobial activity against wide range of microbes including multi-drug resistant bacteria. Besides, appreciable antioxidant and anti-inflammatory activities were also observed. Results of cytotoxicity studies, performed on normal transformed human embryonic kidney (HEK 293) cells and human red blood cells (hRBCs), revealed almost non-toxic behavior of these nanostructures, however, remarkable toxicity on human breast cancer cells (MCF-7), human osteosarcoma cells (Mg63) and human liver cancer cells (HepG2) was observed. The pre-apoptotic and anti-proliferative activity of IBP nanostructures were confirmed by acridine orange/propidium iodide dual staining assay followed by confocal microscopy and scratch assay on Mg63 cells. Taken together, these results advocate the promising potential of the synthesized IBP nanostructures in the therapeutic applications. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-022-01015-y.
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Affiliation(s)
- Reena Singh
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Diksha Jha
- Immunology and Infectious Disease Biology Laboratory, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Uma Dhawan
- Department of Biomedical Science, Bhaskaracharya College of Applied Sciences, University of Delhi, Dwarka, New Delhi, 110075 India
| | - Hemant K. Gautam
- Immunology and Infectious Disease Biology Laboratory, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025 India
| | - Pradeep Kumar
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007 India
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9
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Enzyme immobilization: Implementation of nanoparticles and an insight into polystyrene as the contemporary immobilization matrix. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.05.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Synthesis, Characterization, and Photocatalytic Investigation of CuFe2O4 for the Degradation of Dyes under Visible Light. Catalysts 2022. [DOI: 10.3390/catal12060623] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The CuFe2O4 photocatalysts were synthesized by the solution combustion synthesis method, followed by heat treatment at a temperature range of 400 to 1100 °C. Later, they were characterized for application in the photodegradation of synthetic dyes under visible radiation. The X-ray diffraction results showed the presence of cubic and tetragonal phases of CuFe2O4 and secondary phases of Fe2O3 and CuO, at low temperatures. The infrared spectrum profile confirms the formation of the phases pointed out in the XRD. For most specimens, the scanning electron microscopy examination revealed a morphology similar to porous flakes and a quasi-spherical shape. On the other hand, samples heat-treated at 1100 °C displayed a plate-like morphology. The specimens’ band gap ranged from 1.49 to 1.58 eV, indicating that the material is a semiconductor. Regarding the photocatalytic efficiency, the 400 °C heat-treated samples showed better activity when the visible irradiation was used over the green malachite and rhodamine B dyes. The solution degradation rates on the first and former dyes were 56.60% and 84.30%, respectively.
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11
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Tahsiri Z, Niakousari M, Hosseini SMH, Majdinasab M. Magnetic layered double hydroxide nanosheet as a biomolecular vessel for enzyme immobilization. Int J Biol Macromol 2022; 209:1422-1429. [PMID: 35461871 DOI: 10.1016/j.ijbiomac.2022.04.111] [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: 12/10/2021] [Revised: 02/20/2022] [Accepted: 04/15/2022] [Indexed: 11/05/2022]
Abstract
Magnetic nanoparticle coated with manganese‑aluminum layered double hydroxide (Fe3O4/Mg-Al-CO3-LDH) was prepared and used as porous support for ficin (EC 3.4.22.3) as a model enzyme. Structural characteristics were studied by XRD, FTIR, SEM and light scattering. The quantity of immobilized ficin on the mentioned LDH and non-magnetic LDH was measured and enzyme activity, stability and reusability were compared. Results revealed that the core and shell structure of Fe3O4/Mg-Al-CO3-LDH makes it better dispersion compared to the pristine Mg-Al-CO3-LDH. Ficin showed strong affinity to absorption of the surface of mentioned LDHs nanosheet especially magnetic LDH, confirmed that the existence of Fe3O4 in the core structure of magnetic Fe3O4/Mg-Al-CO3-LDH caused better dispersion of LDH nanocrystal shell compared to pristine LDH moreover, enzyme which immobilized on the magnetic LDH supports, can be recovered by magnetic interaction. The storage stability of free ficin, immobilized ficin on the Mg-Al-CO3-LDH and Fe3O4/Mg-Al-CO3-LDH during a period of 120 days lost about 75%, 30%, and 20% of their initial activities, respectively.
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Affiliation(s)
- Z Tahsiri
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran
| | - M Niakousari
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran.
| | - S M H Hosseini
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran
| | - M Majdinasab
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran
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12
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Nano-Therapeutics to Treat Acne Vulgaris. Indian J Microbiol 2022; 62:167-174. [DOI: 10.1007/s12088-022-01001-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/10/2022] [Indexed: 11/05/2022] Open
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13
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Patel SKS, Kalia VC, Kim SY, Lee JK, Kim IW. Immobilization of Laccase Through Inorganic-Protein Hybrids Using Various Metal Ions. Indian J Microbiol 2022; 62:312-316. [DOI: 10.1007/s12088-022-01000-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 12/30/2021] [Indexed: 12/17/2022] Open
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14
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Patel SKS, Kalia VC. Advancements in the Nanobiotechnological Applications. Indian J Microbiol 2021; 61:401-403. [PMID: 34744195 PMCID: PMC8542030 DOI: 10.1007/s12088-021-00979-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Vipin C Kalia
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
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Patel SKS, Shanmugam R, Lee JK, Kalia VC, Kim IW. Biomolecules Production from Greenhouse Gases by Methanotrophs. Indian J Microbiol 2021; 61:449-457. [PMID: 34744200 PMCID: PMC8542019 DOI: 10.1007/s12088-021-00986-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 12/24/2022] Open
Abstract
Harmful effects on living organisms and the environment are on the rise due to a significant increase in greenhouse gas (GHG) emissions through human activities. Therefore, various research initiatives have been carried out in several directions in relation to the utilization of GHGs via physicochemical or biological routes. An environmentally friendly approach to reduce the burden of significant emissions and their harmful effects is the bioconversion of GHGs, including methane (CH4) and carbon dioxide (CO2), into value-added products. Methanotrophs have enormous potential for the efficient biotransformation of CH4 to various bioactive molecules, including biofuels, polyhydroxyalkanoates, and fatty acids. This review highlights the recent developments in methanotroph-based systems for methanol production from GHGs and proposes future perspectives to improve process sustainability via biorefinery approaches.
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Affiliation(s)
- Sanjay K. S. Patel
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Ramsamy Shanmugam
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Vipin C. Kalia
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - In-Won Kim
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
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16
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Anaerobic Digestion of Agri-Food Wastes for Generating Biofuels. Indian J Microbiol 2021; 61:427-440. [PMID: 34744198 DOI: 10.1007/s12088-021-00977-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 08/25/2021] [Indexed: 12/24/2022] Open
Abstract
Presently, fossil fuels are extensively employed as major sources of energy, and their uses are considered unsustainable due to emissions of obnoxious gases on the burning of fossil fuels, which can lead to severe environmental complications, including human health. To tackle these issues, various processes are developing to waste as a feed to generate eco-friendly fuels. The biological production of fuels is considered to be more beneficial than physicochemical methods due to their environmentally friendly nature, high rate of conversion at ambient physiological conditions, and less energy-intensive. Among various biofuels, hydrogen (H2) is considered as a wonderful due to high calorific value and generate water molecule as end product on the burning. The H2 production from biowaste is demonstrated, and agri-food waste can be potentially used as a feedstock due to their high biodegradability over lignocellulosic-based biomass. Still, the H2 production is uneconomical from biowaste in fuel competing market because of low yields and increased capital and operational expenses. Anaerobic digestion is widely used for waste management and the generation of value-added products. This article is highlighting the valorization of agri-food waste to biofuels in single (H2) and two-stage bioprocesses of H2 and CH4 production.
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Kumar N, Mittal A, Yadav M, Sharma S, Kumar T, Chakraborty R, Sengupta S, Chauhan NS. Photocatalytic TiO 2/CdS/ZnS nanocomposite induces Bacillus subtilis cell death by disrupting its metabolism and membrane integrity. Indian J Microbiol 2021; 61:487-496. [PMID: 34744204 DOI: 10.1007/s12088-021-00973-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 08/08/2021] [Indexed: 12/24/2022] Open
Abstract
Titanium dioxide (TiO2) is widely characterized for its application in clinical diagnostics, therapeutics, cosmetics, nutrition, and environment management. Despite enormous potential, its dependence on ultraviolet (UV) light for photocatalytic activity limits its commercialization. Accordingly in the present study, a photo catalytically superior ternary complex of TiO2 with Cadmium sulfide/Zinc sulfide (CdS/ZnS) has been synthesized, as well as, characterized for photo-induced antimicrobial activity. The band gap of crystalline TiO2/CdS/ZnS nanocomposite has been reduced (2.26 eV) and nanocomposite has shown the optimal photo-activation at 590 nm. TiO2 nanocomposite has significant bactericidal activity in visible light (P < 0.01). Exposure of the TiO2 nanocomposite affected the cellular metabolism by altering the 1681 metabolic features (P < 0.001) culminating in poor cellular survivability. Additionally, photo-induced reactive oxygen species generation through nanocomposite disrupts the microbial cellular structure. The present study synthesized photocatalytic nanocomposite as well as unveiled the holistic cellular effect of theTiO2/CdS/ZnS nanocomposite. Additionally, the present study also indicated the potential application of TiO2/CdS/ZnS nanocomposite for sustainable environment management, therapeutics, and various industries. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-021-00973-z.
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Affiliation(s)
- Naveen Kumar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana India
| | - Anuj Mittal
- Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana India
| | - Monika Yadav
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana India
| | - Shankar Sharma
- Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana India
| | - Tarun Kumar
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana India
| | - Rahul Chakraborty
- Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Shantanu Sengupta
- Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Nar Singh Chauhan
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana India
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Antimicrobial and Antioxidant Potential of Vernonia Cinerea Extract Coated AuNPs. Indian J Microbiol 2021; 61:506-518. [PMID: 34744206 DOI: 10.1007/s12088-021-00976-w] [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: 05/04/2021] [Accepted: 08/18/2021] [Indexed: 10/20/2022] Open
Abstract
Abstract Green synthesis of nanoparticles is an important tool to reduce the harmful effects associated with traditional methods. In the present investigation, we have synthesised gold nanoparticles (AuNPs) using aqueous extract prepared from fresh aerial parts (leaf and stem) of Vernonia cinerea as bioreducing agent. The visual indication of change in colour from pale yellow to brown to ruby-red indicated the successful formation of the AuNPs. Characterization of nanoparticles was carried out by UV-visible spectroscopy, X-ray crystallography (XRD), Transmission electron microscopy (TEM) and Energy dispersive X-ray analysis (EDX). UV-Vis spectra showed a specific peak at 546 nm which was the initial confirmation of the biosynthesized AuNPs. TEM images showed spherical and triangular shape of AuNPs with an average size of 25 nm. From FTIR spectrum, different functional groups were identified that could be responsible for the formation, stabilization, and capping of biosynthesized AuNPs. Aqueous plant extract and biosynthesised AuNPs were separately tested for their antimicrobial activity against six bacterial strains and four fungal strains. Biosynthesised AuNPs (2 mg/ml) showed significantly high zone of inhibition against the selected bacterial strains as compared to the aqueous plant extract. Maximum zone of inhibition (18.2 mm) was observed with AuNPs against Streptococcus pyogenes whereas comparatively less value (12.5 mm) was recorded with the plant extract. Interestingly, the inhibitory activity observed against bacterial strains was even better than ampicillin. Antifungal activity recorded with AuNPs (5 mg/ml) was maximum (17.4 mm) against R. oryzae and it was higher than positive control (17.00 mm) and plant extract (13.2 mm).The present study clearly showed that AuNPs coated with Vernonia cinerea extract were as good as positive control in inhibiting bacterial and fungal growth. In addition, these AuNPs also showed good antioxidant potential which was comparable to ascorbic acid. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s12088-021-00976-w.
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Zhou L, Li R, Li X, Zhang Y. One-step selective affinity purification and immobilization of His-tagged enzyme by recyclable magnetic nanoparticles. Eng Life Sci 2021; 21:364-373. [PMID: 34140847 PMCID: PMC8182278 DOI: 10.1002/elsc.202000093] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/21/2021] [Accepted: 03/02/2021] [Indexed: 11/07/2022] Open
Abstract
The NiFe2O4 magnetic nanoparticles (NF-MNPs) were prepared for one-step selective affinity purification and immobilization of His-tagged recombinant glucose dehydrogenase (GluDH). The prepared nanoparticles were characterized by a Fourier-transform infrared spectrophotometer and microscopy. The immobilization and purification of His-tagged GluDH on NF-MNPs were investigated. The optimal immobilization conditions were obtained that mixed cell lysis and carriers in a ratio of 0.13 in pH 8.0 Tris-HCl buffer at 30℃ and incubated for 2 h. The highest activity recovery and protein bindings were 71.39% and 38.50 μg mg-1 support, respectively. The immobilized GluDH exhibited high thermostability, pH-stability and it can retain more than 65% of the initial enzyme after 10 cycles for the conversion of glucose to gluconolactone. Comparing with a commercial Ni-NTA resin, the NF-MNPs displayed a higher specific affinity with His-tagged recombinant GluDH.
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Affiliation(s)
- Li‐Jian Zhou
- The People's Hospital of DanyangAffiliated Danyang Hospital of Nantong UniversityDanyangJiangsu ProvinceP. R. China
| | - Rui‐Fang Li
- School of PharmacyJiangsu UniversityZhenjiangP. R. China
| | - Xue‐Yong Li
- School of PharmacyJiangsu UniversityZhenjiangP. R. China
| | - Ye‐Wang Zhang
- School of PharmacyJiangsu UniversityZhenjiangP. R. China
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Bioinspired Gold Nanoparticle Synthesis Using Terminalia bellerica Fruit Parts and Exploring Their Anti-bacterial Potency In Vitro. Indian J Microbiol 2021; 61:298-305. [PMID: 34294996 DOI: 10.1007/s12088-021-00937-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/31/2021] [Indexed: 12/15/2022] Open
Abstract
Gold nanoparticles with their excellent biocompatibility are extensively used in pharma and biological applications. Terminalia bellerica (TB) dry fruit parts mediated gold nanoparticles were synthesized using the aqueous extracts. The secondary metabolites screening of the aqueous extracts was done using phytochemical analysis. The green synthesized gold nanoparticles show vibrant colours. They were characterized using UV-Visible spectroscopy, FT-IR spectroscopy, XRD analysis and FE-SEM. The analytical characterization methods ensured the formation of nanoparticles and could predict the nanometric size of the nanoparticles. The study also lay to determine the antibacterial potential of the TB fruit parts and TB fruit parts mediated gold nanoparticles. The pathogens chosen for the study were pathogens from clinical species such as Acinetobacter pneumonia, Bacillus subtilis, and Enterococcus faecalis which cause common infections. The TB fruit part extracts, as well as TB fruit parts mediated gold nanoparticles were capable enough to destroy clinical pathogens. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-021-00937-3.
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de Souza Lima J, Boemo APSI, de Araújo PHH, de Oliveira D. Immobilization of endoglucanase on kaolin by adsorption and covalent bonding. Bioprocess Biosyst Eng 2021; 44:1627-1637. [PMID: 33686500 DOI: 10.1007/s00449-021-02545-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/26/2021] [Indexed: 11/25/2022]
Abstract
In the current research, endoglucanase, one of the enzymes of the cellulolytic complex, was immobilized on kaolin by two different techniques, adsorption, and covalent bonding. A comparative study was conducted between free, adsorbed, and covalently immobilized endoglucanase. For the covalent bonding, the kaolin particles were functionalized with 3-aminopropyltriethoxysilane (APTES) and activated with glutaraldehyde. Immobilization by adsorption was performed using the kaolin without any treatment. Recovered activities after the endoglucanase immobilization by adsorption and covalent bonding were found to be 60 ± 2.5 and 65 ± 3.5%, respectively. The studies of optima pH and temperature, as well as thermal stability, showed that the catalytic characteristic of the enzyme was maintained after the immobilization by both adsorption and covalent bonding. Even after 8 cycles of use, the endoglucanase immobilized by the two techniques retained about 86% of its initial activity. The results showed that the adsorption was as effective as covalent bonding for the immobilization of endoglucanase on kaolin. However, the adsorption technique seems to have a greater potential for use in future studies, as it is simpler, cheaper, and faster than covalent immobilization. Therefore, in this work it was demonstrated that endoglucanases can be immobilized efficiently on kaolin through a very simple immobilization protocol, offering a promising strategy for performing repeated enzymatic hydrolysis reactions.
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Affiliation(s)
- Janaina de Souza Lima
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Ana Paula Serafini Immich Boemo
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Pedro Henrique Hermes de Araújo
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Débora de Oliveira
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil.
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Bilal M, Fernandes CD, Mehmood T, Nadeem F, Tabassam Q, Ferreira LFR. Immobilized lipases-based nano-biocatalytic systems - A versatile platform with incredible biotechnological potential. Int J Biol Macromol 2021; 175:108-122. [PMID: 33548312 DOI: 10.1016/j.ijbiomac.2021.02.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/26/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Lipases belong to α/β hydrolases that cause hydrolytic catalysis of triacylglycerols to release monoacylglycerols, diacylglycerols, and glycerol with free fatty acids. Lipases have a common active site that contains three amino acid residues in a conserved Gly-X-Ser-X-Gly motif: a nucleophilic serine residue, an acidic aspartic or glutamic acid residue, and a basic histidine residue. Lipase plays a significant role in numerous industrial and biotechnological processes, including paper, food, oleochemical and pharmaceutical applications. However, its instability and aqueous solubility make application expensive and relatively challenging. Immobilization has been considered as a promising approach to improve enzyme stability, reusability, and survival under extreme temperature and pH environments. Innumerable supporting material in the form of natural polymers and nanostructured materials is a crucial aspect in the procedure of lipase immobilization used to afford biocompatibility, stability in physio-chemical belongings, and profuse binding positions for enzymes. This review outlines the unique structural and functional properties of a large number of polymers and nanomaterials as robust support matrices for lipase immobilization. Given these supporting materials, the applications of immobilized lipases in different industries, such as biodiesel production, polymer synthesis, additives, detergent, textile, and food industry are also discussed.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Clara Dourado Fernandes
- Graduate Program in Process Engineering, Tiradentes University, Murilo Dantas Avenue, 300, Farolândia, 49032-490 Aracaju, Sergipe, Brazil; Waste and Effluent Treatment Laboratory, Institute of Technology and Research (ITP), Tiradentes University (UNIT), Murilo Dantas Avenue, 300, Farolândia, 49032-490 Aracaju, Sergipe, Brazil
| | - Tahir Mehmood
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences-UVAS, Lahore 54000, Pakistan.
| | - Fareeha Nadeem
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences-UVAS, Lahore 54000, Pakistan
| | - Qudsia Tabassam
- Institute of Chemistry, University of Sargodha, Sargodha 4010, Pakistan
| | - Luiz Fernando Romanholo Ferreira
- Graduate Program in Process Engineering, Tiradentes University, Murilo Dantas Avenue, 300, Farolândia, 49032-490 Aracaju, Sergipe, Brazil; Waste and Effluent Treatment Laboratory, Institute of Technology and Research (ITP), Tiradentes University (UNIT), Murilo Dantas Avenue, 300, Farolândia, 49032-490 Aracaju, Sergipe, Brazil
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Mitra A, Sreedharan SM, Singh R. Concrete Crack Restoration Using Bacterially Induced Calcium Metabolism. Indian J Microbiol 2021; 61:229-233. [PMID: 33927464 DOI: 10.1007/s12088-020-00916-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/08/2020] [Indexed: 12/28/2022] Open
Abstract
Concrete structures are prone to develop cracks and cause devastation. Repair and renovation are not enough to ensure complete eradication of crack development. The entire process is costly and laborious. The microbiologically induced calcium carbonated precipitation can be effective in restoring the cracks. The calcium-based nutrients along with specific bacterial strain have been used in the present investigation. The pellets of calcium as per Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy are deposited in the cracks of the concrete over a period of 7 days of incubation. The presence of bacteria in the calcium precipitates as demonstrated by scanning electron microscope provides adequate strength and adhering quality to the pellets. The effective filling of cracks is confirmed with the help ultrasonic pulse velocity test also. Since, elephantine heritage and high sky buildings have high maintenance costs, the use of present technique will cut down the cost and duration of restoration. Supplementary Information The online version of this article (10.1007/s12088-020-00916-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ashim Mitra
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh India
| | - Smitha Mony Sreedharan
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh India
| | - Rajni Singh
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh India
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Liu Y, Shao X, Kong D, Li G, Li Q. Immobilization of thermophilic lipase in inorganic hybrid nanoflower through biomimetic mineralization. Colloids Surf B Biointerfaces 2021; 197:111450. [DOI: 10.1016/j.colsurfb.2020.111450] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/29/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022]
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25
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Huang Z, Tian Z, Zhu M, Wu C, Zhu Y. Recent Advances in Biomaterial Scaffolds for Integrative Tumor Therapy and Bone Regeneration. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ziyan Huang
- School of Materials Science and Engineering University of Shanghai for Science and Technology Shanghai 200093 China
| | - Zhengfang Tian
- Hubei Key Laboratory of Processing and Application of Catalytic Materials College of Chemical Engineering Huanggang Normal University Huanggang 438000 China
| | - Min Zhu
- School of Materials Science and Engineering University of Shanghai for Science and Technology Shanghai 200093 China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China
| | - Yufang Zhu
- Hubei Key Laboratory of Processing and Application of Catalytic Materials College of Chemical Engineering Huanggang Normal University Huanggang 438000 China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China
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Patel SKS, Gupta RK, Kim SY, Kim IW, Kalia VC, Lee JK. Rhus vernicifera Laccase Immobilization on Magnetic Nanoparticles to Improve Stability and Its Potential Application in Bisphenol A Degradation. Indian J Microbiol 2020; 61:45-54. [PMID: 33505092 DOI: 10.1007/s12088-020-00912-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/13/2020] [Indexed: 02/06/2023] Open
Abstract
In the present study, Rhus vernicifera laccase (RvLac) was immobilized through covalent methods on the magnetic nanoparticles. Fe2O3 and Fe3O4 nanoparticles activated by 3-aminopropyltriethoxysilane followed with glutaraldehyde showed maximum immobilization yields and relative activity up to 81.4 and 84.3% at optimum incubation and pH of 18 h and 5.8, respectively. The maximum RvLac loading of 156 mg/g of support was recorded on Fe2O3 nanoparticles. A higher optimum pH and temperature of 4.0 and 45 °C were noted for immobilized enzyme compared to values of 3.5 and 40 °C for free form, respectively. Immobilized RvLac exhibited better relative activity profiles at various pH and temperature ranges. The immobilized enzyme showed up to 16-fold improvement in the thermal stability, when incubated at 60 °C, and retained up to 82.9% of residual activity after ten cycles of reuses. Immobilized RvLac exhibited up to 1.9-fold higher bisphenol A degradation efficiency potential over free enzyme. Previous reports have demonstrated the immobilization of RvLac on non-magnetic supports. This study has demonstrated that immobilization of RvLac on magnetic nanoparticles is very efficient especially for achieving high loading, better pH and temperature profiles, and thermal- and solvents-stability, high reusability, and higher degradation of bisphenol A.
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Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Rahul K Gupta
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Sang-Yong Kim
- Department of Food Science and Biotechnology, Shin-Ansan University, Ansan, 15435 Republic of Korea
| | - In-Won Kim
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Vipin C Kalia
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
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Wabaidur SM, Khan MA, Siddiqui MR, Otero M, Jeon BH, Alothman ZA, Hakami AAH. Oxygenated functionalities enriched MWCNTs decorated with silica coated spinel ferrite – A nanocomposite for potentially rapid and efficient de-colorization of aquatic environment. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113916] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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28
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Manigandan A, Vimalanadhan M, Dhandapani R, Bagewadi S, Kannan V, Sethuraman S, Subramanian A. Marigold-like tyrosinase-embedded nanostructures-a nano-in-micro system. Dalton Trans 2020; 49:11329-11335. [PMID: 32760996 DOI: 10.1039/d0dt02358b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Marigold-like tyrosinase-entrenched nanostructures were developed by a facile method using a metal cofactor to overcome the limitations of conventional enzyme immobilization techniques. The protein-copper complex promotes the hierarchical self-assembly of nanopetals into marigold-like microstructures through a sequential germination process. Nanopetals, which originated from bead-like tiny projections, showed budding over the surface and promoted the anisotropic growth of copper phosphate nanocrystals upon co-ordination with the active functional groups in protein. This organic-inorganic hybrid showed excellent re-usability, comparable catalytic efficiency, faster reaction rate, improved storage, and thermal stability without affecting the enzyme activity.
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Affiliation(s)
- Amrutha Manigandan
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Mangalagowri Vimalanadhan
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Ramya Dhandapani
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Shambhavi Bagewadi
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Vishal Kannan
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Swaminathan Sethuraman
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Anuradha Subramanian
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
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Yavaşer R, Karagözler AA. Covalent immobilization of papain onto poly(hydroxyethyl methacrylate)-chitosan cryogels for apple juice clarification. FOOD SCI TECHNOL INT 2020; 26:629-641. [DOI: 10.1177/1082013220919307] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Enzyme immobilization appears as a remarkable technique to safely attach enzymes for several applications and cryogels stand as promising support materials to be used in such investigations. In this work, papain enzyme was immobilized onto an interpenetrating network obtained by cryogelation of N,N′-methylenebisacrylamide cross-linked 2-hydroxyethyl methacrylate and glutaraldehyde cross-linked chitosan. Cryogels were modified with –NH2 functionality and glutaraldehyde in order to attach papain covalently. Immobilization was carried out at 25 ℃ in 0.1 M pH 7.0 phosphate buffer at 1.0 mg/ml enzyme concentration for 5 h. The amount of papain immobilized onto cryogel was calculated to be 15.2 ± 2.54 mg/g cryogel. Macroporous structure and surface area were determined by scanning electron microscopy and Brunauer–Emmett–Teller techniques, respectively. Energy dispersive X-ray analysis showed that papain was bound to the cryogel and cryogel structure was composed of 2-hydroxyethyl methacrylate, chitosan, and glutaraldehyde. Proteolytic activities of free and immobilized papain were measured using casein as substrate. Optimum pH values and temperatures were 8.0 and 65 ℃ for free and immobilized enzymes and kinetic parameters were calculated at these conditions. Reusability and storage stability results indicated that immobilization enhanced the stability of papain compared to free form. Efficiency of immobilized papain was demonstrated by apple juice clarification study as an industrial use of the enzyme. Phenolic compound, protein, total soluble solid contents, and viscosity of apple juice before and after clarification were determined.
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Affiliation(s)
- Rukiye Yavaşer
- Chemistry Department, Faculty of Arts and Sciences, Aydın Adnan Menderes University, Aydın, Turkey
| | - A Alev Karagözler
- Chemistry Department, Faculty of Arts and Sciences, Aydın Adnan Menderes University, Aydın, Turkey
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Otari SV, Patel SKS, Kalia VC, Lee JK. One-step hydrothermal synthesis of magnetic rice straw for effective lipase immobilization and its application in esterification reaction. BIORESOURCE TECHNOLOGY 2020; 302:122887. [PMID: 32018086 DOI: 10.1016/j.biortech.2020.122887] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 05/22/2023]
Abstract
Immobilization of industrially important enzymes on supports is important to decrease the cost of the overall enzymatic production procedure. Herein, a novel method for synthesizing a new support, magnetic rice straw (MRS) in one step is reported: rice straw (RS) was soaked with Fe2+ ions and these were further reduced to form embedded Fe2O3 nanoparticles on the RS surface, forming MRS. This material presented a magnetic saturation value of 27.32 emu g-1. Lipase immobilization on MRS resulted in 94.3% immobilization efficiency and 91.3 mg g-1 of enzyme loading, which are higher than immobilization on native RS. The lipase stability was increased approximately 8-fold at 70 °C. The lipase-MRS composite was tested in the esterification reaction of biodiesel production, where it showed prominent reusability. Therefore, this novel and rapid synthesis method can provide ecological and economic support for enzyme immobilization and industrially important product formation.
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Affiliation(s)
- Sachin V Otari
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
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Pandey D, Patel SKS, Singh R, Kumar P, Thakur V, Chand D. Solvent-Tolerant Acyltransferase from Bacillus sp. APB-6: Purification and Characterization. Indian J Microbiol 2019; 59:500-507. [PMID: 31762514 DOI: 10.1007/s12088-019-00836-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 10/26/2019] [Indexed: 12/15/2022] Open
Abstract
Amidase from Bacillus sp. APB-6 with very good acyltransferase activity was purified to homogeneity with a purification fold of 3.68 and 53.20% enzyme yield. The purified protein's subunit molecular mass was determined approximately 42 kDa. Hyperactivity of the enzyme was observed at pH 7.5 (150 mM, potassium-phosphate buffer) and 50 °C of incubation. An enhancement in activity up to 42% was recorded with ethylenediaminetetraacetic acid and dithiothreitol. The kinetic parameter K m values for substrates: acetamide and hydroxylamine-hydrochloride were 73.0 and 153 mM, respectively. Further, the V max for acyltransferase activity was 1667 U/mg of protein and the K i for acetamide was calculated as 37.0 mM. The enzyme showed tolerance to various organic solvents (10%, v/v) and worked well in the biphasic reaction medium. The acyltransferase activity in presence of solvents i.e. biphasic medium may prove highly favorable for the transformation of hydrophobic amides, which otherwise is not possible in simple aqueous phase.
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Affiliation(s)
- Deepak Pandey
- 1Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi, 110029 India
| | - Sanjay K S Patel
- 2Department of Biotechnology, Himachal Pradesh University, Shimla, HP 171005 India
| | - Rajendra Singh
- 2Department of Biotechnology, Himachal Pradesh University, Shimla, HP 171005 India
| | - Pradeep Kumar
- 3Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, HP 173229 India
| | - Vikram Thakur
- 2Department of Biotechnology, Himachal Pradesh University, Shimla, HP 171005 India
| | - Duni Chand
- 2Department of Biotechnology, Himachal Pradesh University, Shimla, HP 171005 India
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Purohit HJ. Aligning Microbial Biodiversity for Valorization of Biowastes: Conception to Perception. Indian J Microbiol 2019; 59:391-400. [PMID: 31762500 DOI: 10.1007/s12088-019-00826-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 09/12/2019] [Indexed: 12/16/2022] Open
Abstract
Generation of biowastes is increasing rapidly and its uncontrolled, slow and persistent fermentation leads to the release of Green-house gases (GHGs) into the environment. Exploration and exploitation of microbial diversity for degrading biowastes can result in producing diverse range of bioactive molecules, which can act as a source of bioenergy, biopolymers, nutraceuticals and antimicrobials. The whole process is envisaged to manage biowastes, and reduce their pollution causing capacity, and lead to a sustainable society. A strategy has been proposed for: (1) producing bioactive molecules, and (2) achieving a zero-pollution emission by recycling of the GHGs through biological routes.
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Affiliation(s)
- Hemant J Purohit
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, Maharashtra 440020 India
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Nair AR, Chellapan G. Improving operational stability of thermostable Pythium myriotylum secretory serine protease by preparation of cross-linked enzyme aggregates (CLEAs). Prep Biochem Biotechnol 2019; 50:107-115. [DOI: 10.1080/10826068.2019.1663537] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Aswati R. Nair
- Department of Biochemistry and Molecular Biology, Central University of Kerala (CUK), Kasaragod, Kerala, India
| | - Geethu Chellapan
- School of Biotechnology, National Institute of Technology Calicut, Calicut, India
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Sreedharan SM, Singh SP, Singh R. Flower Shaped Gold Nanoparticles: Biogenic Synthesis Strategies and Characterization. Indian J Microbiol 2019; 59:321-327. [PMID: 31388209 PMCID: PMC6646626 DOI: 10.1007/s12088-019-00804-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 04/11/2019] [Indexed: 11/30/2022] Open
Abstract
Microbes can serve as mediators for the fabrication of complicated nano-structures, obviating the tedious and time-consuming methods of synthesis. The shape of a nanoparticle has a very prominent role in defining the functionality in prospective arenas. So, the flower shaped nanoparticles are in focus nowadays due to their enhanced electrocatalytic and optical properties as compared to the spherical ones. We present the biosynthesis of flower shaped gold nanoparticles by Bacillus subtilis RSB64 and process parameters optimization using central composite design. The two well-separated scattering spectra showing absorption peaks at 540 nm and 750 nm indicate the presence of anisotropic gold nanoparticles and the results were corroborated by transmission electron microscopy analysis. The presence of gold nanoparticles was further confirmed by energy dispersive X-ray studies. The functional groups responsible for the stability of gold nanoparticles were predicted by Fourier transform infrared spectroscopy. The gold nanoparticles biosynthesis were collective effects of three experimental process parameters viz pH, temperature and precursor concentration. These three parameters were statistically optimized wherein pH 11.0, substrate concentration 1:1 (v/v) and temperature of 50 °C resulted in the synthesis of stable flower shaped gold nanoparticles of 50 nm size. The results indicated the tailored biosynthesis of gold nanoparticles with a flower like morphology by multi process parameter analysis to finalize robust conditions for the synthesis using B. subtilis RSB64. These gold nanoflowers demonstrate increased surface area efficiency/reactivity and could be employed for sustained and controlled delivery of drugs.
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Affiliation(s)
- Smitha Mony Sreedharan
- Amity Institute of Microbial Biotechnology, Amity University, Sector-125, Noida, Uttar Pradesh 201313 India
| | - Surinder Pal Singh
- National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi, 110012 India
| | - Rajni Singh
- Amity Institute of Microbial Biotechnology, Amity University, Sector-125, Noida, Uttar Pradesh 201313 India
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Mittal A, Kumar N, Chauhan NS. Curcumin Encapsulated PEGylated Nanoliposomes: A Potential Anti-Infective Therapeutic Agent. Indian J Microbiol 2019; 59:336-343. [PMID: 31388211 PMCID: PMC6646638 DOI: 10.1007/s12088-019-00811-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 06/04/2019] [Indexed: 12/15/2022] Open
Abstract
Exploration of novel bioactive molecules or potentiation of the existing bioactive molecules is necessary to reduce the burden of the infectious diseases for the better human health. Curcumin is a promising molecule with huge therapeutic potential. Despite high bioactivity, its therapeutic suitability is shadowed by poor bioavailability, limited aqueous solubility, and short shelf life. Nanotechnology has generated new avenues to overcome these challenges. In the current study polymer assisted nanoliposomes, PEGylated Curcumin nanoliposomes with good loading efficiency were prepared. These particles have shown 1000 fold enhanced curcumin hydrophilicity and tenfold higher stability. In vitro release kinetic indicates two fold higher curcumin release in the simulated gastric and intestinal environment. Various bioactivity assays have confirmed enhanced bioactivity of nanocurcmin in comparison of the native curcumin. PEGylated Curcumin nanoliposomes could be employed for treating various diseases.
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Affiliation(s)
- Anuj Mittal
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana India
- Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana India
| | - Naveen Kumar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana India
| | - Nar Singh Chauhan
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana India
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Sharifi M, Karim AY, Mustafa Qadir Nanakali N, Salihi A, Aziz FM, Hong J, Khan RH, Saboury AA, Hasan A, Abou-Zied OK, Falahati M. Strategies of enzyme immobilization on nanomatrix supports and their intracellular delivery. J Biomol Struct Dyn 2019; 38:2746-2762. [DOI: 10.1080/07391102.2019.1643787] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Majid Sharifi
- Faculty of Advanced Sciences and Technology, Department of Nanotechnology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Abdulkarim Yasin Karim
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
- Research Center, Knowledge University, Erbil, Kurdistan Region, Iraq
| | - Nadir Mustafa Qadir Nanakali
- Department of Biology, College of Science, Cihan University, Erbil, Iraq
- Department of Biology, College of Education, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
- Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Jun Hong
- School of Life Sciences, Henan University, China
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Ali Akbar Saboury
- Inistitute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
- Center of Excellence in Biothermodynamics, University of Tehran, Tehran, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, Qatar
- Biomedical Research Centre (BRC), Qatar University, Doha, Qatar
| | - Osama K. Abou-Zied
- Department of Chemistry, Faculty of Science,Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Mojtaba Falahati
- Faculty of Advanced Sciences and Technology, Department of Nanotechnology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Antimicrobial Activity of Biosynthesized Silver Nanoparticles Decorated Silica Nanoparticles. Indian J Microbiol 2019; 59:379-382. [PMID: 31388218 DOI: 10.1007/s12088-019-00812-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/06/2019] [Indexed: 12/16/2022] Open
Abstract
The production of cheap and effective compound for medicinal application is a major challenge for scientific community. So, several biological materials have been explored for the possible application in material synthesis which are useful in biomedical uses. Here, biomolecules from green tea leaves were functionalized on the surface of silicon dioxide nanoparticles (GSiO2 NPs). Next, the decoration silver (Ag) NPs on the surface of the GSiO2 NPs was observed in very short time of incubation in aqueous AgNO3. Ultraviolet-visible spectroscopy confirmed the formation of Ag NPs and the high-resolution transmission and scanning electron microscopies confirmed the decoration of spherical Ag NPs of 10 to 15 nm size on the surface of GSiO2 NPs. The antimicrobial activity of the Ag-GSiO2 NPs was determined against Staphylococcus aureus and Escherichia coli. The Ag-GSiO2 NPs displayed sustainable antimicrobial activity compared to Ag ions. The results indicate the potential value of Ag-GSiO2 NPs in surgical material and food processing.
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38
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Patel SKS, Gupta RK, Kumar V, Mardina P, Lestari R, Kalia VC, Choi MS, Lee JK. Influence of Metal Ions on the Immobilization of β-Glucosidase Through Protein-Inorganic Hybrids. Indian J Microbiol 2019; 59:370-374. [PMID: 31388216 DOI: 10.1007/s12088-019-00796-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 03/07/2019] [Indexed: 11/29/2022] Open
Abstract
Immobilization of enzymes through metal-based system is demonstrated as a promising approach to enhance its properties. In this study, the influence of metals ions, including copper, cobalt and zinc (Zn) on the immobilization of β-glucosidase (BGL) through the synthesis of protein-inorganic hybrid was evaluated at 4 °C. Among these metal ions-based hybrids, Zn showed the highest encapsulation yield and relative activity of 87.5 and 207%, respectively. Immobilized BGL exhibited higher pH and temperature stability compared to free form. Thermal stability of hybrid improved up to 26-fold at 60 °C. After 10 cycles of reuse, immobilized enzyme retained 93.8% of residual activity. These results suggested that metal ions played a significant role in the enzyme immobilization as a protein-inorganic hybrid. Overall, this strategy can be potentially applied to enhance the properties of enzymes though effective encapsulation for the broad biotechnological applications.
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Affiliation(s)
- Sanjay K S Patel
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Rahul K Gupta
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Virendra Kumar
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Primata Mardina
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Rowina Lestari
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Vipin C Kalia
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Myung-Seok Choi
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Jung-Kul Lee
- Division of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
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