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das Neves Vasconcellos Brandão IY, Ferreira de Macedo E, Barboza de Souza Silva PH, Fontana Batista A, Graciano Petroni SL, Gonçalves M, Conceição K, de Sousa Trichês E, Batista Tada D, Maass D. Bionanomining of copper-based nanoparticles using pre-processed mine tailings as the precursor. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 338:117804. [PMID: 36996570 DOI: 10.1016/j.jenvman.2023.117804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
The bacterial synthesis of copper nanoparticles emerges as an eco-friendly alternative to conventional techniques since it comprises a single-step and bottom-up approach, which leads to stable metal nanoparticles. In this paper, we studied the biosynthesis of Cu-based nanoparticles by Rhodococcus erythropolis ATCC4277 using a pre-processed mining tailing as a precursor. The influence of pulp density and stirring rate on particle size was evaluated using a factor-at-time experimental design. The experiments were carried out in a stirred tank bioreactor for 24 h at 25 °C, wherein 5% (v/v) of bacterial inoculum was employed. The O2 flow rate was maintained at 1.0 L min-1 and the pH at 7.0. Copper nanoparticles (CuNPs), with an average hydrodynamic diameter of 21 ± 1 nm, were synthesized using 25 g.L-1 of mining tailing and a stirring rate of 250 rpm. Aiming to visualize some possible biomedical applications of the as-synthesized CuNPs, their antibacterial activity was evaluated against Escherichia coli and their cytotoxicity was evaluated against Murine Embryonic Fibroblast (MEF) cells. The 7-day extract of CuNPs at 0.1 mg mL-1 resulted in 75% of MEF cell viability. In the direct method, the suspension of CuNPs at 0.1 mg mL-1 resulted in 70% of MEF cell viability. Moreover, the CuNPs at 0.1 mg mL-1 inhibited 60% of E. coli growth. Furthermore, the NPs were evaluated regarding their photocatalytic activity by monitoring the oxidation of methylene blue (MB) dye. The CuNPs synthesized showed rapid oxidation of MB dye, with the degradation of approximately 65% of dye content in 4 h. These results show that the biosynthesis of CuNPs by R. erythropolis using pre-processed mine tailing can be a suitable method to obtain CuNPs from environmental and economical perspectives, resulting in NPs useful for biomedical and photocatalytic applications.
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Affiliation(s)
| | - Erenilda Ferreira de Macedo
- Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia; Departamento de Ciência e Tecnologia, São José dos Campos, SP, Brazil
| | | | - Aline Fontana Batista
- Instituto de Aeronáutica e Espaço (IAE), Departamento de Ciência e Tecnologia Aeroespacial (DCTA), Zip-code 12228-904, São José dos Campos, SP, Brazil
| | - Sérgio Luis Graciano Petroni
- Instituto de Aeronáutica e Espaço (IAE), Departamento de Ciência e Tecnologia Aeroespacial (DCTA), Zip-code 12228-904, São José dos Campos, SP, Brazil
| | - Maraisa Gonçalves
- Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia; Departamento de Ciência e Tecnologia, São José dos Campos, SP, Brazil
| | - Katia Conceição
- Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia; Departamento de Ciência e Tecnologia, São José dos Campos, SP, Brazil
| | - Eliandra de Sousa Trichês
- Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia; Departamento de Ciência e Tecnologia, São José dos Campos, SP, Brazil
| | - Dayane Batista Tada
- Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia; Departamento de Ciência e Tecnologia, São José dos Campos, SP, Brazil
| | - Danielle Maass
- Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia; Departamento de Ciência e Tecnologia, São José dos Campos, SP, Brazil.
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Hari SK, Gauba A, Shrivastava N, Tripathi RM, Jain SK, Pandey AK. Polymeric micelles and cancer therapy: an ingenious multimodal tumor-targeted drug delivery system. Drug Deliv Transl Res 2023; 13:135-163. [PMID: 35727533 DOI: 10.1007/s13346-022-01197-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2022] [Indexed: 12/13/2022]
Abstract
Since the beginning of pharmaceutical research, drug delivery methods have been an integral part of it. Polymeric micelles (PMs) have emerged as multifunctional nanoparticles in the current technological era of nanocarriers, and they have shown promise in a range of scientific fields. They can alter the release profile of integrated pharmacological substances and concentrate them in the target zone due to their improved permeability and retention, making them more suitable for poorly soluble medicines. With their ability to deliver poorly soluble chemotherapeutic drugs, PMs have garnered considerable interest in cancer. As a result of their remarkable biocompatibility, improved permeability, and minimal toxicity to healthy cells, while also their capacity to solubilize a wide range of drugs in their micellar core, PMs are expected to be a successful treatment option for cancer therapy in the future. Their nano-size enables them to accumulate in the tumor microenvironment (TME) via the enhanced permeability and retention (EPR) effect. In this review, our major aim is to focus primarily on the stellar applications of PMs in the field of cancer therapeutics along with its mechanism of action and its latest advancements in drug and gene delivery (DNA/siRNA) for cancer, using various therapeutic strategies such as crossing blood-brain barrier, gene therapy, photothermal therapy (PTT), and immunotherapy. Furthermore, PMs can be employed as "smart drug carriers," allowing them to target specific cancer sites using a variety of stimuli (endogenous and exogenous), which improve the specificity and efficacy of micelle-based targeted drug delivery. All the many types of stimulants, as well as how the complex of PM and various anticancer drugs react to it, and their pharmacodynamics are also reviewed here. In conclusion, commercializing engineered micelle nanoparticles (MNPs) for application in therapy and imaging can be considered as a potential approach to improve the therapeutic index of anticancer drugs. Furthermore, PM has stimulated intense interest in research and clinical practice, and in light of this, we have also highlighted a few PMs that have previously been approved for therapeutic use, while the majority are still being studied in clinical trials for various cancer therapies.
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Affiliation(s)
- Sharath Kumar Hari
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India
| | - Ankita Gauba
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India
| | - Neeraj Shrivastava
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India
| | - Ravi Mani Tripathi
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India.
| | - Sudhir Kumar Jain
- School of Studies in Microbiology, Vikram University, Ujjain, Madhya Pradesh, 456010, India
| | - Akhilesh Kumar Pandey
- Department of Biological Sciences, Rani Durgavati University, Jabalpur, M.P, 482001, India.,Vikram University, Ujjain, Madhya Pradesh, 456010, India
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Trak D, Arslan Y. Synthesis of silver nanoparticles using dried black mulberry ( Morus nigra L.) fruit extract and their antibacterial and effective dye degradation activities. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1980038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Diğdem Trak
- Chemistry Department, Faculty of Arts & Sciences, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Yasin Arslan
- Nanoscience and Nanotechnology Department, Faculty of Arts & Sciences, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
- Faculty of Science, Karabük University, Karabük, Turkey
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Tripathi RM, Chung SJ. Eco-Friendly Synthesis of SnO 2-Cu Nanocomposites and Evaluation of Their Peroxidase Mimetic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1798. [PMID: 34361185 PMCID: PMC8308257 DOI: 10.3390/nano11071798] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 12/02/2022]
Abstract
The enzyme mimetic activity of nanomaterials has been applied in colorimetric assays and point-of-care diagnostics. Several nanomaterials have been exploited for their peroxidase mimetic activity toward 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide. However, an efficient nanomaterial for the rapid and strong oxidation of TMB remains a strategic challenge. Therefore, in this study, we developed copper-loaded tin oxide (SnO2-Cu) nanocomposites that rapidly oxidize TMB. These nanocomposites have strong absorption at 650 nm and can be used for highly sensitive colorimetric detection. An environmentally friendly (green), rapid, easy, and cost-effective method was developed for the synthesis of these nanocomposites, which were characterized using ultraviolet-visible, energy-dispersive X-ray, and Fourier-transform infrared spectroscopy, as well as scanning electron microscopy. This is the first green synthesis of SnO2-Cu nanocomposites. Their enzyme mimetic activity, which was first studied here, was found to be strongly dependent on the temperature and pH value of the solution. The synthesized nanocomposites have the advantages of low cost, high stability, and ease of preparation for enzyme mimetic applications. Hence, SnO2-Cu nanocomposites are a promising alternative to peroxidase enzymes in colorimetric point-of-care diagnostics.
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Affiliation(s)
- Ravi Mani Tripathi
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea;
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh, Sector 125, Noida 201303, India
| | - Sang J. Chung
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea;
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Khan IA, Inaam Ul Hassan M, Hussain H, Shah SM, Yasin T. Fabrication and characterization of amidoxime-functionalized silica decorated with copper: a catalytic assembly for rapid reduction of dyes. Turk J Chem 2021; 45:410-419. [PMID: 34104053 PMCID: PMC8164202 DOI: 10.3906/kim-2007-49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 12/22/2020] [Indexed: 11/04/2022] Open
Abstract
In this study, amidoxime-functionalized silica decorated with copper (AFS-Cu) was fabricated and tested for its catalytic application. Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction were employed to characterize its structure and morphology. The application of AFS-Cu as a catalyst for the catalytic reduction of methylene blue (MB) in aqueous media using NaBH4 as reductant was evaluated. The ability to reuse as well as the effect of catalyst dose and pH of solution on the catalytic activity was investigated. The reduction of MB followed pseudo-first-order kinetics and the rate constant (k) was 0.6224 min-1. AFS-Cu was found to be a highly effective catalyst for MB reduction reaction and can be easily recovered and reused several times with no appreciable loss of catalytic activity.
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Affiliation(s)
- Ijaz Ahmed Khan
- Department of Chemistry, Quaid-i-Azam University, Islamabad Pakistan.,Department of Chemistry, Pakistan Institute of Engineering and Applied Sciences, Islamabad Pakistan.,Department of Chemistry, Women University of Azad Jammu & Kashmir, Bagh Pakistan
| | - Muhammad Inaam Ul Hassan
- Department of Chemistry, Pakistan Institute of Engineering and Applied Sciences, Islamabad Pakistan
| | - Hazrat Hussain
- Department of Chemistry, Quaid-i-Azam University, Islamabad Pakistan
| | - Syed Mujtaba Shah
- Department of Chemistry, Quaid-i-Azam University, Islamabad Pakistan
| | - Tariq Yasin
- Department of Chemistry, Pakistan Institute of Engineering and Applied Sciences, Islamabad Pakistan
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Tripathi RM, Ahn D, Kim YM, Chung SJ. Enzyme Mimetic Activity of ZnO-Pd Nanosheets Synthesized via a Green Route. Molecules 2020; 25:E2585. [PMID: 32498444 PMCID: PMC7321175 DOI: 10.3390/molecules25112585] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/28/2020] [Accepted: 05/31/2020] [Indexed: 01/10/2023] Open
Abstract
Recent developments in the area of nanotechnology have focused on the development of nanomaterials with catalytic activities. The enzyme mimics, nanozymes, work efficiently in extreme pH and temperature conditions, and exhibit resistance to protease digestion, in contrast to enzymes. We developed an environment-friendly, cost-effective, and facile biological method for the synthesis of ZnO-Pd nanosheets. This is the first biosynthesis of ZnO-Pd nanosheets. The synthesized nanosheets were characterized by UV-visible spectroscopy, X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray. The d-spacing (inter-atomic spacing) of the palladium nanoparticles in the ZnO sheets was found to be 0.22 nm, which corresponds to the (111) plane. The XRD pattern revealed that the 2θ values of 21.8°, 33.3°, 47.7°, and 56.2° corresponded with the crystal planes of (100), (002), (112), and (201), respectively. The nanosheets were validated to possess peroxidase mimetic activity, which oxidized the 3,3',5,5'-tetramethylbenzidine (TMB) substrate in the presence of H2O2. After 20 min of incubation time, the colorless TMB substrate oxidized into a dark-blue-colored one and a strong peak was observed at 650 nm. The initial velocities of Pd-ZnO-catalyzed TMB oxidation by H2O2 were analyzed by Michaelis-Menten and Lineweaver-Burk plots, resulting in 64 × 10-6 M, 8.72 × 10-9 Msec-1, and 8.72 × 10-4 sec-1 of KM, Vmax, and kcat, respectively.
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Affiliation(s)
- Ravi Mani Tripathi
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (D.A.); (Y.M.K.)
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh, Sector 125, Noida 201303, India
| | - Dohee Ahn
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (D.A.); (Y.M.K.)
| | - Yeong Mok Kim
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (D.A.); (Y.M.K.)
| | - Sang J. Chung
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (D.A.); (Y.M.K.)
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Tripathi RM, Hameed P, Rao RP, Shrivastava N, Mittal J, Mohapatra S. Biosynthesis of Highly Stable Fluorescent Selenium Nanoparticles and the Evaluation of Their Photocatalytic Degradation of Dye. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-020-00718-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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8
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Paul A, Dhar SS. Construction of hierarchical MnMoO4/NiFe2O4 nanocomposite: Highly efficient visible light driven photocatalyst in the degradation of different polluting dyes in aqueous medium. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124090] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tripathi RM, Yoon SY, Ahn D, Chung SJ. Facile Synthesis of Triangular and Hexagonal Anionic Gold Nanoparticles and Evaluation of Their Cytotoxicity. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1774. [PMID: 31842495 PMCID: PMC6956233 DOI: 10.3390/nano9121774] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/21/2019] [Accepted: 12/09/2019] [Indexed: 11/17/2022]
Abstract
Comprehension of the shape-dependent properties of gold nanoparticles (AuNPs) could benefit the advancements in cellular uptake efficiency. Spherical AuNPs have generally been used for drug delivery, and recent research has indicated that the cellular uptake of triangular AuNPs was higher than that of spherical ones. Previous reports have also revealed that chemically synthesized AuNPs were cytotoxic. Therefore, we have developed a facile, cost-effective, and environmentally friendly method for synthesizing triangular and hexagonal anionic AuNPs. The zeta potential of the synthesized AuNPs was negative, which indicated that their surface could be easily functionalized with positively charged molecules to upload drugs or biomolecules. Transmission electron microscopy (TEM) images illustrated that the largest particle size of the synthesized quasi-hexagonal AuNPs was 61 nm. The TEM images also illustrated that two types of equilateral-triangular AuNPs were synthesized: One featured sharp and the other rounded corners. The sides of the smallest and largest triangular AuNPs were 23 and 178 nm, respectively. Energy-dispersive X-ray spectra of the green-synthesized AuNPs indicated that they consisted entirely of elemental Au. The cytotoxicity of the green-synthesized AuNPs was evaluated using 3T3-L1 adipocytes. Using cell viability data, we determined that the green-synthesized AuNPs did not exhibit any cytotoxic effects on 3T3-L1 adipocytes.
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Affiliation(s)
- R. M. Tripathi
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (S.-Y.Y.); (D.A.)
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh, Sector 125, Noida 201303, India
| | - Sun-Young Yoon
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (S.-Y.Y.); (D.A.)
| | - Dohee Ahn
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (S.-Y.Y.); (D.A.)
| | - Sang J. Chung
- School of Pharmacy, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggido 16419, Korea; (R.M.T.); (S.-Y.Y.); (D.A.)
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Ullah H, Wilfred CD, Shaharun MS. Green synthesis of copper nanoparticle using ionic liquid-based extraction from Polygonum minus and their applications. ENVIRONMENTAL TECHNOLOGY 2019; 40:3705-3712. [PMID: 29873603 DOI: 10.1080/09593330.2018.1485751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
The present work reports the extraction of phenolic compounds from Polygonum minus using ionic liquid as extracting solvent. In this work, 1-Butyl-3-methylimidazolium hydrogen sulfate [BMIM][HSO4] was used for the extraction of bioactive compounds. Accordingly, ionic liquids based microwave-assisted extraction treatment for separating of bioactive compounds from polygonum minus was first performed in the present study. The results obtained in this work have high extraction yield in comparison with conventional solvent. UV/Vis results showed that microwave synthesis was fast, well dispersed and nanosized copper nanoparticle (CuNPs) in comparison with conventional synthesis. CuNPs was characterised by X-Rays diffractometer (XRD), Fourier transform infrared (FTIR), dynamic light scattering (DLS), field emission scanning electron microscopy combined with energy dispersive x-rays (FESEM-EDX), and thermogravimetric analysis (TGA). All the instrumental analyses confirmed the particles were nanosized. Furthermore, the antibacterial activity of as-synthesised CuNPs showed effective inhibitory zone against three different bacteria. The photocatalytic degradation of copper nanoparticles was studied using methylene blue (MB) and methyl orange (MO) dyes under UV light and degraded 99.9% within short time 8 and 7 min.
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Affiliation(s)
- Habib Ullah
- Center of Research in Ionic Liquids, Universiti Teknologi PETRONAS, Tronoh, Malaysia
| | - Cecilia Devi Wilfred
- Center of Research in Ionic Liquids, Universiti Teknologi PETRONAS, Tronoh, Malaysia
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Kumar N, Bhadwal AS, Mizaikoff B, Singh S, Kranz C. Electrochemical detection and photocatalytic performance of MoS2/TiO2 nanocomposite against pharmaceutical contaminant: Paracetamol. SENSING AND BIO-SENSING RESEARCH 2019. [DOI: 10.1016/j.sbsr.2019.100288] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Bhat RS, Almusallam J, Al Daihan S, Al‐Dbass A. Biosynthesis of silver nanoparticles using Azadirachta indica leaves: characterisation and impact on Staphylococcus aureus growth and glutathione‐S‐transferase activity. IET Nanobiotechnol 2019; 13:498-502. [PMCID: PMC8676152 DOI: 10.1049/iet-nbt.2018.5133] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 10/29/2018] [Accepted: 02/05/2019] [Indexed: 08/13/2023] Open
Abstract
Silver nanoparticles (AgNPs) are toxic to various microbes, but the mechanism of action is not fully understood. The present report explores Azadirachta indica leaf extract as a reducing agent for the rapid biosynthesis of AgNPs. The effects of AgNPs on the growth, glutathione‐S‐transferase (GST) activity, and total protein concentration in Staphylococcus aureus were investigated, as was its antibacterial activity against seven other bacterial strains. Nanoparticle synthesis was confirmed by the UV‐Vis spectrum and colour change of the solution. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS), zeta potential analysis, and infrared spectroscopy were used to characterise the synthesised nanoparticles. The UV‐Visible spectrograph showed an absorbance peak at 420 nm. DLS analysis showed an average AgNP size of 159 nm and a Polydispersity Index of 0.373. SEM analysis showed spherical particle shapes, while TEM established an average AgNP size of 7.5 nm. The element analysis profile showed small peaks for calcium, potassium, zinc, chlorine, with the presence of oxygen and silver. AgNPs markedly affected the growth curves and GST activity in treated bacteria, and produced moderate antibacterial activity. Thus AgNPs synthesised from A. indica leaves can interrupt the growth curve and total protein concentration in bacterial cells.
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Affiliation(s)
- Ramesa Shafi Bhat
- Department of BiochemistryScience College, King Saud UniversityRiyadhSaudi Arabia
| | - Jameelah Almusallam
- Department of BiochemistryScience College, King Saud UniversityRiyadhSaudi Arabia
| | - Sooad Al Daihan
- Department of BiochemistryScience College, King Saud UniversityRiyadhSaudi Arabia
| | - Abeer Al‐Dbass
- Department of BiochemistryScience College, King Saud UniversityRiyadhSaudi Arabia
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Plant-Mediated Green Synthesis of Nanostructures: Mechanisms, Characterization, and Applications. INTERFACE SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1016/b978-0-12-813586-0.00006-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Biogenic nanomaterials: Synthesis, characterization, growth mechanism, and biomedical applications. J Microbiol Methods 2018; 157:65-80. [PMID: 30552971 DOI: 10.1016/j.mimet.2018.12.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 11/21/2018] [Accepted: 12/11/2018] [Indexed: 12/13/2022]
Abstract
The biosynthesis of nanomaterials is a huge and intensifying field of research due to their application in various areas, in particular the biomedical and pharmaceutical fields. In this review, we focused on the biosynthesis of both metallic and semiconductor nanomaterials and their application in biomedicine and pharmaceutics. In order to meet an exponentially increasing need for nanostructured materials, the biological route for the synthesis of nanomaterials will have to be explored, offering advantages over chemical and physical methods as a simpler, more cost effective, and environmentally friendly method, and for which there is no need to use high pressure and temperatures or toxic chemicals. This review discusses in detail the potential role of bioreducing and capping/stabilizing agents in biosynthesis. This review also investigates the application of various biosynthetic nanomaterials as antimicrobial materials, in clinical detection, for drug delivery and wound-healing, and as anti-diabetic materials.
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Nasrollahzadeh M, Ghorbannezhad F, Issaabadi Z, Sajadi SM. Recent Developments in the Biosynthesis of Cu‐Based Recyclable Nanocatalysts Using Plant Extracts and their Application in the Chemical Reactions. CHEM REC 2018; 19:601-643. [DOI: 10.1002/tcr.201800069] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/17/2018] [Indexed: 01/11/2023]
Affiliation(s)
| | | | - Zahra Issaabadi
- Department of Chemistry, Faculty of ScienceUniversity of Qom Qom 37185-359 Iran
| | - S. Mohammad Sajadi
- Department of Petroleum Geoscience, Faculty of ScienceSoran University PO Box 624 Soran, Kurdistan Regional Government Iraq
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Tripathi RM, Shrivastav BR, Shrivastav A. Antibacterial and catalytic activity of biogenic gold nanoparticles synthesised by Trichoderma harzianum. IET Nanobiotechnol 2018; 12:509-513. [PMID: 29768239 PMCID: PMC8676314 DOI: 10.1049/iet-nbt.2017.0105] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 12/08/2017] [Accepted: 12/30/2017] [Indexed: 11/20/2022] Open
Abstract
This study reveals the antibacterial and catalytic activity of biogenic gold nanoparicles (AuNPs) synthesised by biomass of Trichoderma harzianum. The antibacterial activity of AuNPs was analysed by the means of growth curve, well diffusion and colony forming unit (CFU) count methods. The minimum inhibitory concentration of AuNPs was 20 µg/ml. AuNPs at 60 µg/ml show effective antibacterial activity as optical absorption was insignificant. The well diffusion and CFU methods were also applied to analyse the effect of various concentration of AuNPs. Further, the catalytic activity of AuNPs was analysed against methylene blue (MB) as a model pollutant in water. MB was degraded 39% in 30 min in the presence of AuNPs and sodium borohydrate and the rate constant (k) was found to be 0.2 × 10-3 s-1. This shows that the biogenic AuNP is an effective candidate for antibacterial and catalytic degradation of toxic pollutants.
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Affiliation(s)
- Ravi Mani Tripathi
- Amity Institute of Nanotechnology, Amity University, Sector 125, Noida 201303, India
| | - Braj Raj Shrivastav
- Department of Surgical Oncology, Cancer Hospital & Research Institute, Gwalior 474009, Madhya Pradesh, India
| | - Archana Shrivastav
- Department of Microbiology, College of Life Sciences, Gwalior 474009, Madhya Pradesh, India.
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Narasaiah P, Mandal BK, Nallani Chakravarthula S. Synthesis of gold nanoparticles by cotton peels aqueous extract and their catalytic efficiency for the degradation of dyes and antioxidant activity. IET Nanobiotechnol 2018. [DOI: 10.1049/iet-nbt.2017.0039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Palajonna Narasaiah
- Department of ChemistrySchool of Advanced SciencesVIT UniversityVellorec14Tamil NaduIndia
| | - Badal Kumar Mandal
- Department of ChemistrySchool of Advanced SciencesVIT UniversityVellorec14Tamil NaduIndia
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18
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Bhuyan B, Paul B, Paul A, Dhar SS. Paederia foetida
Linn. promoted synthesis of CoFe
2
O
4
and NiFe
2
O
4
nanostructures and their photocatalytic efficiency. IET Nanobiotechnol 2018. [DOI: 10.1049/iet-nbt.2017.0131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Bishal Bhuyan
- Department of ChemistryNational Institute of TechnologySilchar, Silchar788010AssamIndia
| | - Bappi Paul
- Department of ChemistryNational Institute of TechnologySilchar, Silchar788010AssamIndia
| | - Arijita Paul
- Department of ChemistryNational Institute of TechnologySilchar, Silchar788010AssamIndia
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19
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Tripathi R, Rao RP, Tsuzuki T. Green synthesis of sulfur nanoparticles and evaluation of their catalytic detoxification of hexavalent chromium in water. RSC Adv 2018; 8:36345-36352. [PMID: 35558482 PMCID: PMC9088846 DOI: 10.1039/c8ra07845a] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 10/19/2018] [Indexed: 11/21/2022] Open
Abstract
Chromium contamination in the aquatic environment is an urgent and serious issue due to its mutagenic and carcinogenic effects against living organisms. The present study demonstrates the capability of biogenic sulfur nanoparticles (SNPs) for the reduction of hexavalent chromium into a less toxic state. A green approach was adapted for the synthesis of SNPs using F. benghalensis leaf extract which acts as a reducing and capping agent. The biosynthesized SNPs were characterized by UV-Vis spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM) and energy dispersive X-ray spectroscopy (EDX). TEM micrographs revealed that the zero-valent sulfur nanoparticles were in the range of 2–15 nm and the average size of 5.1 nm. The conversion rate of Cr(vi) into Cr(iii) in the presence of SNPs was 88.7% in 80 min. The optimum concentration ratio between SNPs and formic acid was 10 ppm : 480 mM. Biosynthesized sulphur nanoparticles showed high efficiency in the reduction of Cr(vi) even at a small catalyst/Cr(vi) ratio.![]()
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Affiliation(s)
- R. M. Tripathi
- Amity Institute of Nanotechnology
- Amity University
- Noida
- India
| | | | - Takuya Tsuzuki
- Research School of Engineering
- College of Engineering and Computer Science
- Australian National University
- Canberra ACT 2601
- Australia
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20
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Mahajan R, Bhadwal AS, Kumar N, Madhusudanan M, Pudake RN, Tripathi RM. Green synthesis of highly stable carbon nanodots and their photocatalytic performance. IET Nanobiotechnol 2017; 11:360-364. [PMID: 28530182 DOI: 10.1049/iet-nbt.2016.0025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The present study reports a novel, facile, biosynthesis route for the synthesis of carbon nanodots (CDs) with an approximate quantum yield of 38.5%, using Musk melon extract as a naturally derived-precursor material. The synthesis of CDs was established by using ultraviolet-visible (UV-vis) spectroscopy, Dynamic light scattering, photoluminescence spectroscopy, X-ray diffraction, transmission electron microscopy and Fourier transform infrared (FTIR) spectroscopy. The as-prepared CDs possess an eminent fluorescence under UV-light (λex = 365 nm). The size range of CDs was found to be in the range of 5-10 nm. The authors further explored the use of such biosynthesised CDs as a photocatalyst material for removal of industrial dye. Degradation of methylene blue dye was performed in a photocatalytic reactor and monitored using UV-vis spectroscopy. The CDs show excellent dye degradation capability of 37.08% in 60 min and reaction rate of 0.0032 min-1. This study shows that synthesised CDs are highly stable in nature, and possess potential application in wastewater treatment.
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Affiliation(s)
- Rashmi Mahajan
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201 303, Uttar Pradesh, India
| | - Akhshay Singh Bhadwal
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201 303, Uttar Pradesh, India
| | - Nishant Kumar
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201 303, Uttar Pradesh, India
| | - Mukil Madhusudanan
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201 303, Uttar Pradesh, India
| | - Ramesh Namdeo Pudake
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201 303, Uttar Pradesh, India
| | - Ravi Mani Tripathi
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201 303, Uttar Pradesh, India.
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21
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Mehrotra N, Tripathi RM, Zafar F, Singh MP. Catalytic Degradation of Dichlorvos Using Biosynthesized Zero Valent Iron Nanoparticles. IEEE Trans Nanobioscience 2017; 16:280-286. [PMID: 28475065 DOI: 10.1109/tnb.2017.2700232] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The removal of dichlorvos contamination from water is a challenging task because of the presence of direct carbon to phosphorous covalent bond, which makes them resistant to chemical and thermal degradation. Although there have been reports in the literature for degradation of dichlorvos using nanomaterials, those are based on photocatalysis. In this paper, we report a simple and rapid method for catalytic degradation of dichlorvos using protein-capped zero valent iron nanoparticles (FeNPs). We have developed an unprecedented reliable, clean, nontoxic, eco-friendly, and cost-effective biological method for the synthesis of uniformly distributed FeNPs. Yeast extract was used as reducing and capping agent in the synthesis of FeNPs, and synthesized particles were characterized by the UV-visible spectroscopy, X -ray diffraction, Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). TEM micrographs reveal that the nanoparticles size is distributed in the range of 2-10 nm. Selected area electron diffraction pattern shows the polycrystalline rings of FeNPs. The mean size was found to be 5.006 nm from ImageJ. FTIR spectra depicted the presence of biomolecules, which participated in the synthesis and stabilization of nanoparticles. As synthesized, FeNPs were used for the catalytic degradation of dichlorvos in aqueous medium. The degradation activity of the FeNPs has been investigated by the means of incubation time effect, oxidant effect, and nanoparticle concentration effect. The ammonium molybdate test was used to confirm the release of phosphate ions during the interaction of dichlorvos with FeNPs.
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