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Dharshini KS, Ameen F, Anbazhagan V. Mechanistic Investigation on the Antibacterial Activity of Biogenic Silver Nanoparticles Prepared Using Root Extract of Sarsaparilla and Demonstrated their In Vivo Efficacy in Zebrafish Model. Curr Microbiol 2024; 81:268. [PMID: 39003685 DOI: 10.1007/s00284-024-03794-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 07/01/2024] [Indexed: 07/15/2024]
Abstract
Antibiotic success rates are decreasing as drug-resistant bacteria become more prevalent, prompting the development of new therapeutic drugs. Herein, we demonstrated the antimicrobial activity of sarsaparilla root extract fabricated silver nanoparticles (sAgNPs). The UV-Visible spectra revealed that the surface Plasmon resonance maxima of sAgNPs were at 415 nm. Transmission electron microscopy confirms that the particles are spherical with size of 12-35 nm. The minimum inhibitory concentration (MIC) of sAgNPs against Escherichia coli, uropathogenic Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus was 62.5, 62.5, 62.5, 62.5, 125 and 125 µM, respectively. At 1X MIC, sAgNPs induces excess reactive oxygen species (ROS) production and disturbs the bacteria membrane intergity, causing cytoplamic membrane depolarization. Interestingly, antibacterial activity of sAgNPs was considerably reduced in the presence of an antioxidant, N-acetyl cysteine, suggesting that ROS-induced membrane damage is a plausible cause of cell death. In contrast to many studies that only report the in vitro activity of NPs, we determined the in vivo antibacterial efficacy using the zebrafish model. It was found that sAgNPs protect fish from infection by inhibiting bacterial growth and eliminating them from the fish. In addition, the catalytic potential of sAgNPs for wastewater decontamination was demonstrated by degrading organic pollutants such as methyl orange, congo red, reactive black, and acid blue. The pollutants degraded in less than 10 min, and the reaction follows pseudo-first-order kinetics. As a proof of concept, the catalytic potential of sAgNPs in degrading mixed dyes to satisfy industrial wastewater treatment needs was established. In summary, sAgNPs have the potential to act as nanocatalysts and nano-drugs, addressing key challenges in medical and environmental research.
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Affiliation(s)
- Karnan Singaravelu Dharshini
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613 401, India
| | - Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Veerappan Anbazhagan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613 401, India.
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2
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Xie N. Synthesis and antibacterial effects of silver nanoparticles (AgNPs) against multi-drug resistant bacteria. Biomed Mater Eng 2024:BME240034. [PMID: 38995765 DOI: 10.3233/bme-240034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
BACKGROUND The emergence of the global problem of multi-drug resistant bacteria (MDR) is closely related to the improper use of antibiotics, which gives birth to an urgent need for antimicrobial innovation in the medical and health field. Silver nanoparticles (AgNPs) show significant antibacterial potential because of their unique physical and chemical properties. By accurately regulating the morphology, size and surface properties of AgNPs, the antibacterial properties of AgNPs can be effectively enhanced and become a next generation antibacterial material with great development potential. OBJECTIVE The detection of the inhibitory effect of AgNPs on MDR provides more possibilities for the research and development of new antimicrobial agents. METHODS Promote the formation of AgNPs by redox reaction; determine the minimum inhibitory concentration (MIC) of AgNPs to bacteria by broth microdilution method; evaluate the killing efficacy of AgNPs against multi-drug-resistant bacteria by plate counting; evaluate the inhibitory effect of AgNPs on biofilm construction by crystal violet staining; study the drug resistance of bacteria by gradually increasing the concentration of AgNPs; and detect the toxicity of AgNPs to cells by CCK-8 method. RESULTS AgNPs has a significant bactericidal effect on a variety of drug-resistant bacteria. After exposure to AgNPs solution for 12 hours, the number of E. coli decreased sharply, and S. aureus was basically eliminated after 16 hours. In particular, AgNPs showed stronger inhibition against Gram-negative bacteria. In addition, AgNPs can effectively hinder the formation of bacterial biofilm, and its inhibitory effect increases with the increase of AgNPs solution concentration. When AgNPs is used for a long time, the development of bacterial resistance to it is slow. From the point of view of safety, AgNPs has no harmful effects on organisms and has biosafety. CONCLUSION AgNPs can inhibit MDR, and the bacteriostatic ability of Gram-negative bacteria is higher than that of Gram-positive bacteria. It can also inhibit the formation of bacterial biofilm, avoid drug resistance and reduce cytotoxicity.
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Affiliation(s)
- Na Xie
- Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, China
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Sahu I, Verma J, Bera AK, Pande S, Bhavsar A, Pati F, Chakraborty P. Synergistic Coassembly of Folic Acid-Based Supramolecular Polymer with a Covalent Polymer Toward Fabricating Functional Antibacterial Biomaterials. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34141-34155. [PMID: 38912611 DOI: 10.1021/acsami.4c06785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Supramolecular biomaterials can recapitulate the structural and functional facets of the native extracellular matrix and react to biochemical cues, leveraging the unique attributes of noncovalent interactions, including reversibility and tunability. However, the low mechanical properties of supramolecular biomaterials can restrict their utilization in specific applications. Combining the advantages of supramolecular polymers with covalent polymers can lead to the fabrication of tailor-made biomaterials with enhanced mechanical properties/degradability. Herein, we demonstrate a synergistic coassembled self-healing gel as a multifunctional supramolecular material. As the supramolecular polymer component, we chose folic acid (vitamin B9), an important biomolecule that forms a gel comprising one-dimensional (1D) supramolecular polymers. Integrating polyvinyl alcohol (PVA) into this supramolecular gel alters its ultrastructure and augments its mechanical properties. A drastic improvement of complex modulus (G*) (∼3674 times) was observed in the folic acid-PVA gel with 15% w/v PVA (33215 Pa) compared with the folic acid gel (9.04 Pa). The coassembled hydrogels possessed self-healing and injectable/thixotropic attributes and could be printed into specific three-dimensional (3D) shapes. Synergistically, the supramolecular polymers of folic acid also improve the toughness, durability, and ductility of the PVA films. A nanocomposite of the gels with silver nanoparticles exhibited excellent catalytic efficiency and antibacterial activity. The folic acid-PVA coassembled gels and films also possessed high cytocompatibility, substantiated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and live-dead assays. Taken together, the antibacterial and cell-adhesive attributes suggest potential applications of these coassembled biomaterials for tissue engineering and wound healing.
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Affiliation(s)
- Ipsita Sahu
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy, Kandi 502284, Telangana, India
| | - Jaya Verma
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy, Kandi 502284, Telangana, India
| | - Ashis Kumar Bera
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Kandi 502284, Telangana, India
| | - Shreya Pande
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Kandi 502284, Telangana, India
| | - Aashwini Bhavsar
- Cen.or Interdisciplinary Programs, Indian Institute of Technology Hyderabad, Sangareddy, Kandi 502284, Telangana, India
| | - Falguni Pati
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Kandi 502284, Telangana, India
| | - Priyadarshi Chakraborty
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy, Kandi 502284, Telangana, India
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Ravichandran R, Annamalai A, Annamalai K, Jeevarathinam A, Ranganathan S, Elumalai S. Hand-crafted potent hydroxyl-rich husk succoured Fe 3O 4 @ Cu, Mn, Ni, Co - tetra-metallic heterogenous nanocomposite as a catalytic accelerant. NANOSCALE 2024; 16:12081-12094. [PMID: 38818925 DOI: 10.1039/d4nr01211a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
An innovative means of synthesizing mechanically recoverable ternary nanocomposite (NC) comprising Fe3O4 supported on Oryza sativa husk (OSH) and ornamented with 3d tetra-metals (M = Mn, Co, Ni, Cu) is proposed using a manual grinding method. This NC was prepared via a one-step manual method. The added advantage of this method is the non-usage of solvents during the synthesis of the NC. In situ, the NPs were grown on OSH-supported magnetite NPs, where they combined to form a matrix to facilitate the formation of the metal NPs in it. The as-crafted Oryza sativa husk-supported magnetite @ tetra-metallic nanocore hybrid (OSFTC) was confirmed via several characterisation techniques, such as XRD, FT-IR, HR-TEM, FE-SEM, XPS, VSM, NMR, and UV-vis analysis. The interesting twist in this NC is that the leaching-in of metals toward the core of the NC increases the magnetic nature of the composite as evidenced by VSM analysis. The electrostatic attraction between NPs formed and the matrix plausibly results in enhanced photocatalytic degradation of pharma-waste in an efficient way. The activity of the OSFTC increases for ciprofloxacin and paracetamol by 67 and 71%. Furthermore, the hydrogenation of anthropogenic pollutants via a foreign agent yields a good conversion percentage of 92%. In addition, the noxious hexavalent chromium is converted to a trivalent cation with the help of OSFTC, indicating good conversion under ambient conditions. Herein, OSFTC also exhibited effective activity against both Gram-positive and Gram-negative bacteria. Moreover, the ternary composite demonstrates consistent and commendable activity against pharmaceutical compounds and carcinogenic pollutants. The OSFTC was designed in a way to perform the cleavage of bonds for toxic materials efficiently.
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Affiliation(s)
- Ramya Ravichandran
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu - 603203, India.
| | - Arun Annamalai
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu - 603203, India.
| | - Kumaresan Annamalai
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu - 603203, India.
| | - Anandhavalli Jeevarathinam
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu - 603203, India.
| | - Suresh Ranganathan
- Department of Chemistry, Centre for Material Chemistry, Karpagam Academy of Higher Education, Coimbatore - 641021, India
| | - Sundaravadivel Elumalai
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu - 603203, India.
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Soni J, Revathi D, Dhanraj G, Ramasubburayan R. Bioinspired green synthesis of ZnO nanoparticles by marine-derived Streptomyces plicatus and its multifaceted biomedicinal properties. Microb Pathog 2024; 193:106758. [PMID: 38906493 DOI: 10.1016/j.micpath.2024.106758] [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: 03/24/2024] [Revised: 06/13/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024]
Abstract
The present study explores the bioinspired green synthesis of zinc oxide nanoparticles (ZnONPs) using marine Streptomyces plicatus and its potent antibacterial, antibiofilm activity against dental caries forming Streptococcus mutans MTCC and S. mutans clinical isolate (CI), cytotoxicity against oral KB cancer cells, hemolysis against blood erythrocytes and artemia toxicity. The bioinspired ZnONPs showed a distinctive absorption peak at 375 nm in UV-Vis spectra, the FT-IR spectra divulged the active functional groups, and XRD confirmed the crystalline nature of the nanoparticles with an average grain size of 41.76 nm. SEM analysis evidenced hexagonal morphology, and EDX spectra affirmed the presence of zinc. The ZnONPs exerted higher antagonistic activity against S. mutans MTCC (Inhibitory zone: 19 mm; MIC: 75 μg/ml) than S. mutans CI (Inhibitory zone: 17 mm; MIC: 100 μg/ml). Results of biofilm inhibitory activity showed a concentration-dependent reduction with S. mutans MTCC (15 %-95 %) more sensitive than S. mutans CI (13 %-89 %). The 50 % biofilm inhibitory concentration (BIC50) of ZnONPs against S. mutans MTCC was considerably lower (71.76 μg/ml) than S. mutans CI (78.13 μg/ml). Confocal Laser Scanning Microscopic visuals clearly implied that ZnONPs effectively distorted the biofilm architecture of both S. mutans MTCC and S. mutans CI. This was further bolstered by a remarkable rise in protein leakage (19 %-85 %; 15 %-77 %) and a fall in exopolysaccharide production (34 mg-7 mg; 49 mg-12 mg). MTT cytotoxicity of ZnONPs recorded an IC50 value of 22.06 μg/ml against KB cells. Acridine orange/ethidium bromide staining showed an increasing incidence of apoptosis in KB cells. Brine shrimp cytotoxicity using Artemia salina larvae recorded an LC50 value of 78.41 μg/ml. Hemolysis assay substantiated the biocompatibility of the ZnONPs. This study underscores the multifaceted application of bioinspired ZnONPs in dentistry.
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Affiliation(s)
- Jeesha Soni
- Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamilnadu, India
| | - Duraisamy Revathi
- Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamilnadu, India
| | - Ganapathy Dhanraj
- Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamilnadu, India
| | - Ramasamy Ramasubburayan
- Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamilnadu, India.
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Chen YR, Thanh DTH, Tran QTP, Liu BL, Srinophakun P, Chiu CY, Chen KH, Chang YK. The Utilization of Chicken Egg White Waste-Modified Nanofiber Membrane for Anionic Dye Removal in Batch and Flow Systems: Comprehensive Investigations into Equilibrium, Kinetics, and Breakthrough Curve. MEMBRANES 2024; 14:128. [PMID: 38921495 PMCID: PMC11205732 DOI: 10.3390/membranes14060128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/17/2024] [Accepted: 05/27/2024] [Indexed: 06/27/2024]
Abstract
This study investigated the use of chicken egg white (CEW) waste immobilized on weak acidic nanofiber membranes for removing the anionic acid orange 7 (AO7) dye in batch and continuous flow modes. Different experiments were conducted to evaluate the effectiveness of CEW-modified nanofiber membranes for AO7 removal, focusing on CEW immobilization conditions, adsorption kinetics, and thermodynamics. The CEW-modified nanofiber membrane (namely NM-COOH-CEW) exhibited a maximum AO7 adsorption capacity of 589.11 mg/g within approximately 30 min. The Freundlich isotherm model best represented the equilibrium adsorption data, while the adsorption kinetics followed a pseudo-second-order rate model. Breakthrough curve analysis using the Thomas model and the bed depth service time (BDST) model showed that the BDST model accurately described the curve, with an error percentage under 5%. To investigate AO7 elution efficiency, different concentrations of organic solvents or salts were tested as eluents. The NM-COOH-CEW nanofiber membrane exhibited promising performance as an effective adsorbent for removing AO7 dye from contaminated water.
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Affiliation(s)
- Yun-Rou Chen
- Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; (Y.-R.C.); (D.T.H.T.); (C.-Y.C.)
| | - Dinh Thi Hong Thanh
- Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; (Y.-R.C.); (D.T.H.T.); (C.-Y.C.)
| | - Quynh Thi Phuong Tran
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City 70880, Vietnam;
| | - Bing-Lan Liu
- Department of Applied Chemistry, Chaoyang University of Technology, Taichung 413310, Taiwan;
| | - Penjit Srinophakun
- Department of Chemical Engineering, Kasetsart University, 50 Ngamwongwan Road, Chatuchak, Bangkok 10900, Thailand;
| | - Chen-Yaw Chiu
- Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; (Y.-R.C.); (D.T.H.T.); (C.-Y.C.)
| | - Kuei-Hsiang Chen
- Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; (Y.-R.C.); (D.T.H.T.); (C.-Y.C.)
| | - Yu-Kaung Chang
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Zhongli Dist., Taoyuan City 320315, Taiwan
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Lal R, Gour T, Dave N, Singh N, Yadav J, Khan A, Jain A, Agarwal LK, Sharma YK, Sharma K. Green route to fabrication of Semal-ZnO nanoparticles for efficient solar-driven catalysis of noxious dyes in diverse aquatic environments. Front Chem 2024; 12:1370667. [PMID: 38817442 PMCID: PMC11137298 DOI: 10.3389/fchem.2024.1370667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/08/2024] [Indexed: 06/01/2024] Open
Abstract
This work successfully demonstrates a sustainable and environmentally friendly approach for synthesizing Semal-ZnO nanoparticles (NPs) using the aqueous leaf extract of Bombax ceiba L. These NPs exhibit an absorption peak at approximately 390 nm in the UV-visible spectrum and an energy gap (Eg) of 3.11 eV. Detailed analyses of the morphology and particle size using various spectroscopic and microscopic techniques, XRD, FE-SEM with EDS, and HR-TEM reveal crystallographic peaks attributable to the hexagonal phase, with an average crystal size of 17 nm. The Semal-ZnO NPs also exhibit a notable photocatalytic efficiency for degrading methylene blue (MB) and methyl orange (MO) under sunlight in different water samples collected from diverse natural sources, indicating that they are promising photocatalysts for environmental remediation. The photocatalytic efficiency of the biofabricated Semal-ZnO NPs is impressive, exhibiting a photodegradation rate of up to 99% for MB and 79% for MO in different water samples under exposure to sunlight. The novel phytofabricated Semal-ZnO NPs are thus a beacon of hope for the environment, with their desirable photocatalytic efficiency, pseudo-first-order kinetics, and ability to break down noxious dye pollutants in various aquatic environments.
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Affiliation(s)
- Ratan Lal
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Tripti Gour
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Narendra Dave
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Niharika Singh
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Jigyasu Yadav
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Afshin Khan
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Akshita Jain
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Lokesh Kumar Agarwal
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | | | - Kuldeep Sharma
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
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Nkosi NC, Basson AK, Ntombela ZG, Dlamini NG, Pullabhotla RVSR. Green Synthesis, Characterization and Application of Silver Nanoparticles Using Bioflocculant: A Review. Bioengineering (Basel) 2024; 11:492. [PMID: 38790359 PMCID: PMC11117625 DOI: 10.3390/bioengineering11050492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/08/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024] Open
Abstract
Nanotechnology has emerged as an effective means of removing contaminants from water. Traditional techniques for producing nanoparticles, such as physical methods (condensation and evaporation) and chemical methods (oxidation and reduction), have demonstrated high efficiency. However, these methods come with certain drawbacks, including the significant energy requirement and the use of costly and hazardous chemicals that may cause nanoparticles to adhere to surfaces. To address these limitations, researchers are actively developing alternative procedures that are cost-effective, environmentally safe, and user-friendly. One promising approach involves biological synthesis, which utilizes plants or microorganisms as reducing and capping agents. This review discusses various methods of nanoparticle synthesis, with a focus on biological synthesis using naturally occurring bioflocculants from microorganisms. Bioflocculants offer several advantages, including harmlessness, biodegradability, and minimal secondary pollution. Furthermore, the review covers the characterization of synthesized nanoparticles, their antimicrobial activity, and cytotoxicity. Additionally, it explores the utilization of these NPs in water purification and dye removal processes.
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Affiliation(s)
- Nkanyiso C. Nkosi
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Albertus K. Basson
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Zuzingcebo G. Ntombela
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Nkosinathi G. Dlamini
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Rajasekhar V. S. R. Pullabhotla
- Chemistry Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa
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Zaccagnini F, De Biase D, Bovieri F, Perotto G, Quagliarini E, Bavasso I, Mangino G, Iuliano M, Calogero A, Romeo G, Singh DP, Pierini F, Caracciolo G, Petronella F, De Sio L. Multifunctional FFP2 Face Mask for White Light Disinfection and Pathogens Detection using Hybrid Nanostructures and Optical Metasurfaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400531. [PMID: 38742980 DOI: 10.1002/smll.202400531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/30/2024] [Indexed: 05/16/2024]
Abstract
A new generation of an FFP2 (Filtering Face Piece of type 2) smart face mask is achieved by integrating broadband hybrid nanomaterials and a self-assembled optical metasurface. The multifunctional FFP2 face mask shows simultaneously white light-assisted on-demand disinfection properties and versatile biosensing capabilities. These properties are achieved by a powerful combination of white light thermoplasmonic responsive hybrid nanomaterials, which provide excellent photo-thermal disinfection properties, and optical metasurface-based colorimetric biosensors, with a very low limit of pathogens detection. The realized system is studied in optical, morphological, spectroscopic, and cell viability assay experiments and environmental monitoring of harmful pathogens, thus highlighting the extraordinary properties in reusability and pathogens detection of the innovative face mask.
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Affiliation(s)
- Federica Zaccagnini
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
| | - Daniela De Biase
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
| | - Francesca Bovieri
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
| | - Giovanni Perotto
- Istituto Italiano di Tecnologia, Smart Materials Group, Via Morego, 30, Genova, 16163, Italy
| | - Erica Quagliarini
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, Rome, 00161, Italy
| | - Irene Bavasso
- Department of Chemical Engineering Materials Environment, Sapienza University of Rome & UdR INSTM, Via Eudossiana 18, Roma, 00184, Italy
| | - Giorgio Mangino
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
| | - Marco Iuliano
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
| | - Antonella Calogero
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
| | - Giovanna Romeo
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
| | - Dharmendra Pratap Singh
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 50 Rue Ferdinand Buisson, Calais cedex, 62228, France
| | - Filippo Pierini
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106, Poland
| | - Giulio Caracciolo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, Rome, 00161, Italy
| | - Francesca Petronella
- National Research Council of Italy, Institute of Crystallography CNR-IC, Rome Division, Area della Ricerca Roma 1 Strada Provinciale 35d, n. 9, Montelibretti (RM), 00010, Italy
| | - Luciano De Sio
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina, 04100, Italy
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Katibi KK, Shitu IG, Yunos KFM, Azis RS, Iwar RT, Adamu SB, Umar AM, Adebayo KR. Unlocking the potential of magnetic biochar in wastewater purification: a review on the removal of bisphenol A from aqueous solution. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:492. [PMID: 38691228 DOI: 10.1007/s10661-024-12574-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/23/2024] [Indexed: 05/03/2024]
Abstract
Bisphenol A (BPA) is an essential and extensively utilized chemical compound with significant environmental and public health risks. This review critically assesses the current water purification techniques for BPA removal, emphasizing the efficacy of adsorption technology. Within this context, we probe into the synthesis of magnetic biochar (MBC) using co-precipitation, hydrothermal carbonization, mechanical ball milling, and impregnation pyrolysis as widely applied techniques. Our analysis scrutinizes the strengths and drawbacks of these techniques, with pyrolytic temperature emerging as a critical variable influencing the physicochemical properties and performance of MBC. We explored various modification techniques including oxidation, acid and alkaline modifications, element doping, surface functional modification, nanomaterial loading, and biological alteration, to overcome the drawbacks of pristine MBC, which typically exhibits reduced adsorption performance due to its magnetic medium. These modifications enhance the physicochemical properties of MBC, enabling it to efficiently adsorb contaminants from water. MBC is efficient in the removal of BPA from water. Magnetite and maghemite iron oxides are commonly used in MBC production, with MBC demonstrating effective BPA removal fitting well with Freundlich and Langmuir models. Notably, the pseudo-second-order model accurately describes BPA removal kinetics. Key adsorption mechanisms include pore filling, electrostatic attraction, hydrophobic interactions, hydrogen bonding, π-π interactions, and electron transfer surface interactions. This review provides valuable insights into BPA removal from water using MBC and suggests future research directions for real-world water purification applications.
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Affiliation(s)
- Kamil Kayode Katibi
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
- Department of Agricultural and Biological Engineering, Faculty of Engineering and Technology, Kwara State University, Malete, Ilorin, 23431, Nigeria.
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Ibrahim Garba Shitu
- Department of Physics, Faculty of Natural and Applied Sciences, Sule Lamido University, Kafin Hausa, Jigawa, Nigeria
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Khairul Faezah Md Yunos
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Rabaah Syahidah Azis
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Raphael Terungwa Iwar
- Department of Agricultural and Environmental Engineering, College of Engineering, Joseph Sarwuan Tarka University, Makurdi, Nigeria
| | - Suleiman Bashir Adamu
- Department of Physics, Faculty of Natural and Applied Sciences, Sule Lamido University, Kafin Hausa, Jigawa, Nigeria
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Abba Mohammed Umar
- Department of Agricultural and Bioenvironmental Engineering, Federal Polytechnic Mubi, Mubi, 650221, Nigeria
| | - Kehinde Raheef Adebayo
- Department of Agricultural and Biological Engineering, Faculty of Engineering and Technology, Kwara State University, Malete, Ilorin, 23431, Nigeria
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11
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Medina DM, Acevedo-Gomez AV, Pellegrini Malpiedi L, Leiva LC. Biochemical characterization of acid proteases from the stomach of palometa (Pygocentrus nattereri, Kner 1858) with potential industrial application. Int J Biol Macromol 2024; 264:130548. [PMID: 38431015 DOI: 10.1016/j.ijbiomac.2024.130548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/30/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Pepsin is one of the major enzymes with significant importance in the food industry, biomedicines, and pharmaceutical formulations. In this work, the main objective was to biochemically characterize a pepsin-like enzymatic extract obtained from Pygocentrus nattereri, a predatory freshwater fish, focusing on their potential industrial application. The obtained extract exhibited optimal activity at 45 °C and pH 1.0-2.0. These proteases remained stable after 2 h of incubation at temperatures ranging from 0° to 45 °C and within pH range of 1.0 to 7.0. Their activity was significantly affected in presence of pepstatin A and SDS, 10 μM and 3.46 mM respectively, while EDTA and PMSF showed partial inhibitory effects. Divalent cations (Ca2+ and Mg2+) did not inhibit the proteolytic activity of the extract; in fact, it improved at a 5 mM CaCl2 concentration. As the NaCl concentration increased, the enzyme activity decreased. However, after desalination, 90 % of the activity was recovered within the tested exposure time. Besides, this extract demonstrated exceptional versatility across diverse industrial applications, including collagen extraction augmentation, IgG hydrolysis facilitation, and silver and polyester recovery from X-ray films. Our results suggest that the obtained enzymatic extract has a wide range of potential applications.
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Affiliation(s)
- D M Medina
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina; Instituto de Procesos Biotecnológicos y Químicos (IPROBYQ), CONICET-UNR, Mitre 1998, 2000 Rosario, Argentina.
| | - A V Acevedo-Gomez
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina
| | - L Pellegrini Malpiedi
- Instituto de Procesos Biotecnológicos y Químicos (IPROBYQ), CONICET-UNR, Mitre 1998, 2000 Rosario, Argentina.
| | - L C Leiva
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina.
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12
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Khan A, Raza ZA, Bhatti HN, Sarwar T. Citrate silver nanoparticles impregnated cellulose as a photocatalytic filter in the degradation of organic dye in the aqueous media. Int J Biol Macromol 2024; 261:129881. [PMID: 38316323 DOI: 10.1016/j.ijbiomac.2024.129881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/04/2024] [Accepted: 01/30/2024] [Indexed: 02/07/2024]
Abstract
Photocatalysis is a clean and efficient process pursued under light irradiation with a suitable photocatalyst to degrade a contaminant. We report citrate functionalization of silver nanoparticles (SNPs) for effective immobilization on cellulosic fabric. The porous cellulosic matrix could be explored as microfiltration membranes for the photocatalytic degradation of organic dyes in the aqueous media. Where valid, the citrate functionalized SNPs and the treated cellulose fabrics were considered for optical, structural, surface chemical, thermal, textile, flowability, photocatalytic, and antibacterial attributes. The SNPs expressed the bandgap energy of 2.56 and 2.43 eV and Urbach energy of 3.38 and 5.21 eV before and after functionalization with the citrate moieties, respectively. The liquid chromatographic and FTIR analyses indicated that the crystal violet (CV) organic dye has been successfully photodegraded to environmentally safer and nontoxic species on passing the contaminated water through the SNPs-treated cellulosic filter. The spectroscopic data also supported the said outcomes. The results demonstrated that the citrate-SNPs-treated cellulose could be efficiently employed as antibacterial photocatalytic membranes for degrading organic dyes in the aqueous media for multiple cycles.
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Affiliation(s)
- Amina Khan
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan
| | - Zulfiqar Ali Raza
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan.
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Tanzeel Sarwar
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan
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13
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Sithara NV, Bharathi D, Lee J, Mythili R, Devanesan S, AlSalhi MS. Synthesis of iron oxide nanoparticles using orange fruit peel extract for efficient remediation of dye pollutant in wastewater. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:30. [PMID: 38227286 DOI: 10.1007/s10653-023-01781-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/20/2023] [Indexed: 01/17/2024]
Abstract
The removal of color-causing compounds from wastewater is a significant challenge that industries encounter due to their toxic, carcinogenic, and harmful properties. Despite the extensive research and development of various techniques with the objective of effectively degrading color pollutants, the challenge still persists. This paper introduces a simple technique for producing iron oxide nanoparticles (Fe2O3 NPs) using orange fruit peel for sustainable dye degradation in aqueous environment. The observation of color change and the measurement of UV-visible absorbance at 240 nm provided a confirmation for the development of Fe2O3 NPs. Transmission electron microscopy examination demonstrated that the Fe2O3 NPs have an agglomerated distribution and forming spherical structures with size ranging from 25-80 nm. Energy-dispersive X-ray spectroscopy analysis supported the existence of Fe and O. Fourier transform infrared spectroscopy conducted to investigate the involvement of orange peel extract in the reduction, capping, and synthesis of Fe2O3 NPs from the precursor salt. Fe2O3 NPs showed a photocatalytic remediation of 97%, for methylene blue under visible light irradiation. Additionally, prepared NPs exhibited concentration depended biofilm inhibition action against E. coli and S. aureus. In conclusion, Fe2O3 NPs can efficiently purify water and suppress pathogens due to their strong degrading activity, reusability, and biofilm inhibition property.
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Affiliation(s)
- N V Sithara
- Department of Biotechnology, Hindusthan College of Arts and Science, Coimbatore, Tamil Nadu, 641028, India.
- Department of Biotechnology, PSG College of Arts & Science, Coimbatore, Tamil Nadu, 641014, India.
| | - Devaraj Bharathi
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea.
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea
| | - R Mythili
- Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, 600077, India
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, 11451, Riyadh, Saudi Arabia
| | - Mohamad S AlSalhi
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, 11451, Riyadh, Saudi Arabia
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14
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Kumar S, Dholakiya BZ, Jangir R. Covalent Organic Framework Impregnated with Silver and Copper Nanoparticles: An Advanced Approach for Catalytic Degradation of Organic Pollutants in Wastewater. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1553-1563. [PMID: 38159077 DOI: 10.1021/acsami.3c15766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
In this study, we introduce an economically viable and scalable process for developing a novel covalent organic framework (COF), which is a cross-linked polymer. The resulting material, TzTFB-COF, is successfully functionalized with silver and copper nanoparticles, which show high adequacy in the degradation of nitroaromatic compounds (NACs). For the synthesis of TzTFB-COF, s-tetrazine diamine (Tz) and 1,3,5-triformylbenzene (TFB) are chosen as building blocks, which exhibit a high density of nitrogen-containing sites. TzTFB-COF shows good chemical and thermal stability (>300 °C). For functionalization of TzTFB-COF with silver and copper nanoparticles, a solution infiltration technique is used. The composite materials, i.e., Ag@TzTFB-COF and Cu@TzTFB-COF, have been characterized using various spectroscopic and analytical techniques, which show high activity, high selectivity, and excellent chemical and thermal stability up to 350 °C. The silver and copper contents of Ag@TzTFB-COF and Cu@TzTFB-COF are determined to be 9.6 and 12.4 wt % by inductively coupled plasma optical emission spectrometer (ICP-OES). The catalytic efficiency of the synthesized Ag@TzTFB-COF and Cu@TzTFB-COF materials is assessed in the context of catalyzing the hydrogenation of NACs. Experimental results reveal a remarkable catalytic performance when conducted in an aqueous medium, and notably, the materials demonstrate substantial potential for reusability across multiple catalytic cycles. The determined parameters for the catalytic hydrogenation reaction, i.e., the rate constants and Gibbs free energies, are found to be 0.0185 s-1 and 9.878 kJ/mol for Ag@TzTFB-COF and 0.0219 s-1 and 9.615 kJ/mol for Cu@TzTFB-COF. Thus, the catalytic reaction exhibits characteristics of endothermic, endergonic, and nonspontaneous nature.
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Affiliation(s)
- Shubham Kumar
- Sardar Vallabhbhai National Institute of Technology, Ichchanath, Surat 395007, Gujarat, India
| | - Bharatkumar Z Dholakiya
- Sardar Vallabhbhai National Institute of Technology, Ichchanath, Surat 395007, Gujarat, India
| | - Ritambhara Jangir
- Sardar Vallabhbhai National Institute of Technology, Ichchanath, Surat 395007, Gujarat, India
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15
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Asghar N, Hussain A, Nguyen DA, Ali S, Hussain I, Junejo A, Ali A. Advancement in nanomaterials for environmental pollutants remediation: a systematic review on bibliometrics analysis, material types, synthesis pathways, and related mechanisms. J Nanobiotechnology 2024; 22:26. [PMID: 38200605 PMCID: PMC10777661 DOI: 10.1186/s12951-023-02151-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/09/2023] [Indexed: 01/12/2024] Open
Abstract
Environmental pollution is a major issue that requires effective solutions. Nanomaterials (NMs) have emerged as promising candidates for pollution remediation due to their unique properties. This review paper provides a systematic analysis of the potential of NMs for environmental pollution remediation compared to conventional techniques. It elaborates on several aspects, including conventional and advanced techniques for removing pollutants, classification of NMs (organic, inorganic, and composite base). The efficiency of NMs in remediation of pollutants depends on their dispersion and retention, with each type of NM having different advantages and disadvantages. Various synthesis pathways for NMs, including traditional synthesis (chemical and physical) and biological synthesis pathways, mechanisms of reaction for pollutants removal using NMs, such as adsorption, filtration, disinfection, photocatalysis, and oxidation, also are evaluated. Additionally, this review presents suggestions for future investigation strategies to improve the efficacy of NMs in environmental remediation. The research so far provides strong evidence that NMs could effectively remove contaminants and may be valuable assets for various industrial purposes. However, further research and development are necessary to fully realize this potential, such as exploring new synthesis pathways and improving the dispersion and retention of NMs in the environment. Furthermore, there is a need to compare the efficacy of different types of NMs for remediating specific pollutants. Overall, this review highlights the immense potential of NMs for mitigating environmental pollutants and calls for more research in this direction.
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Affiliation(s)
- Nosheen Asghar
- Department of Global Smart City, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Alamdar Hussain
- Department of Botany, University of Baltistan, Skardu 16400, Gilgit-Baltistan, Pakistan
| | - Duc Anh Nguyen
- Department of Global Smart City, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Salar Ali
- Department of Environmental Science, University of Baltistan, Skardu 16400, Gilgit-Baltistan, Pakistan
| | - Ishtiaque Hussain
- Department of Environmental Science, University of Baltistan, Skardu 16400, Gilgit-Baltistan, Pakistan
- Department of Environmental Science, Quaid-i-Azam University of Islamabad, Islamabad, 15320, Pakistan
| | - Aurangzeb Junejo
- Department of Global Smart City, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Attarad Ali
- Department of Environmental Science, University of Baltistan, Skardu 16400, Gilgit-Baltistan, Pakistan.
- Directorate of Quality Enhancement Cell, University of Baltistan, Skardu 16400, Gilgit-Baltistan, Pakistan.
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16
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Hernandez-Castro SG, Z Flores-López L, Espinoza-Gomez H, Alonso-Nuñez G. Photocatalytic activity of silver nanoparticles@cellulose nanocomposites, from pistachio husk, in the toxic azo commercial dye degradation. Int J Biol Macromol 2024; 254:127805. [PMID: 37918600 DOI: 10.1016/j.ijbiomac.2023.127805] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/03/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
In this work, an over-the-counter commercial dye, containing direct blue 151 in its composition, which is also discarded without any environmental regulation, was efficiency photodegraded using a green chemistry-synthesized nanocomposites type silver nanoparticles (AgNPs) supported on pistachio husk (PH). The green synthesis (GS) of the nanocomposites was carried out using the Anemopsis californica leaf extract (ExAc) as a reducing-stabilizing agent (AgNPs/ExAc-PH), for the first time. The presence of AgNPs on the nanocomposite surface was corroborated by field emission transmission electron microscope (FE-TEM), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The synthesized AgNPs/ExAc-PH has a bimodal size of 24 and 25 nm (4.86 % each) and a 0.72 % of AgNPs on its surface. AgNPs were adhered to the PH surface, through secondary bonds between the Ag and the cellulose of the PH. The optimum conditions, for efficient photocatalytic degradation, were 5 mg of nanocomposite, 3.18 × 10-2 M of NaBH4, natural sunlight, and stirring; this results in a photodegradation efficiency of 100 % almost instantaneously. Furthermore, it was shown that the dye degradation process is primarily due to the photocatalytic degradation of the dye, which occurs almost instantaneously.
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Affiliation(s)
- Sayra Guadalupe Hernandez-Castro
- Tecnológico Nacional de México/I.T. Tijuana, Centro de Graduados e Investigación en Química, Blvd. Alberto Limón Padilla S/N, Mesa de Otay, C.P. 22000 Tijuana, B.C., Mexico
| | - Lucía Z Flores-López
- Tecnológico Nacional de México/I.T. Tijuana, Centro de Graduados e Investigación en Química, Blvd. Alberto Limón Padilla S/N, Mesa de Otay, C.P. 22000 Tijuana, B.C., Mexico.
| | - Heriberto Espinoza-Gomez
- Universidad Autónoma de Baja California/Facultad de Ciencias Químicas e Ingeniería, Calzada Universidad 14418 Parque Industrial Internacional, C.P. 22390 Tijuana, B.C., Mexico.
| | - Gabriel Alonso-Nuñez
- Universidad Nacional Autónoma de México/Centro de Nanociencia y Nanotecnología, km. 107 Carretera Tijuana-Ensenada, Ensenada C.P. 22860, B.C., Mexico
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17
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Gong X, Jadhav ND, Lonikar VV, Kulkarni AN, Zhang H, Sankapal BR, Ren J, Xu BB, Pathan HM, Ma Y, Lin Z, Witherspoon E, Wang Z, Guo Z. An overview of green synthesized silver nanoparticles towards bioactive antibacterial, antimicrobial and antifungal applications. Adv Colloid Interface Sci 2024; 323:103053. [PMID: 38056226 DOI: 10.1016/j.cis.2023.103053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 11/06/2023] [Accepted: 11/21/2023] [Indexed: 12/08/2023]
Abstract
Present review emphatically introduces the synthesis, biocompatibility, and applications of silver nanoparticles (AgNPs), including their antibacterial, antimicrobial, and antifungal properties. A comprehensive discussion of various synthesis methods for AgNPs, with a particular focus on green chemistry mediated by plant extracts has been made. Recent research has revealed that the optical properties of AgNPs, including surface plasmon resonance (SPR), depend on the particle size, as well as the synthesis methods, preparation synthesis parameters, and used reducing agents. The significant emphasis on the use of synthesized AgNPs as antibacterial, antimicrobial, and antifungal agents in various applications has been reviewed. Furthermore, the application areas have been thoroughly examined, providing a detailed discussion of the underlying mechanisms, which aids in determining the optimal control parameters during the synthesis process of AgNPs. Furthermore, the challenges encountered while utilizing AgNPs and the corresponding advancements to overcome them have also been addressed. This review not only summarizes the achievements and current status of plant-mediated green synthesis of AgNPs but also explores the future prospects of these materials and technology in diverse areas, including bioactive applications.
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Affiliation(s)
- Xianyun Gong
- School of Food Engineering, Department of Chemistry, Harbin University, Harbin 150086, China
| | - Nilesh D Jadhav
- Department of Physics, NTVS's G. T. Patil Arts, Commerce and Science College, Nandurbar 425412 (M.S.), India
| | - Vishal V Lonikar
- Department of Physics, MET's Bhujbal Academy of Science and Commerce, Nashik 422003 (M.S.), India
| | - Anil N Kulkarni
- Department of Physics, NTVS's G. T. Patil Arts, Commerce and Science College, Nandurbar 425412 (M.S.), India.
| | - Hongkun Zhang
- School of Food Engineering, Department of Chemistry, Harbin University, Harbin 150086, China
| | - Babasaheb R Sankapal
- Department of Physics, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440010 (M.S.), India
| | - Juanna Ren
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, China; Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK
| | - Ben Bin Xu
- Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK
| | - Habib M Pathan
- Department of Physics, Savitribai Phule Pune University, Pune 411 007, India.
| | - Yong Ma
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Zhiping Lin
- College of Materials Science and Engineering, Taizhou University, Taizhou, Zhejiang 318000, China
| | | | - Zhe Wang
- Chemistry Department, Oakland University, Rochester 48309, USA.
| | - Zhanhu Guo
- Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK.
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18
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Omar G, Abd Ellah R, Elzayat M, Afifi G, Imam H. Superior removal of hazardous dye using Ag/Au core–shell nanoparticles prepared by laser ablation. OPTICS & LASER TECHNOLOGY 2024; 168:109868. [DOI: 10.1016/j.optlastec.2023.109868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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19
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Singh KR, Natarajan A, Pandey SS. Bioinspired Multifunctional Silver Nanoparticles for Optical Sensing Applications: A Sustainable Approach. ACS APPLIED BIO MATERIALS 2023; 6:4549-4571. [PMID: 37852204 DOI: 10.1021/acsabm.3c00669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Silver nanoparticles developed via biosynthesis are the most fascinating nanosized particles and encompassed with excellent physicochemical properties. The bioinspired nanoparticles with different shapes and sizes have attracted huge attention due to their stability, low cost, environmental friendliness, and use of less hazardous chemicals. This is an ideal method for synthesizing a range of nanosized metal particles from plants and biomolecules. Optical biosensors are progressively being fabricated for the attainment of sustainability by using opportunities offered by nanotechnology. This review focuses mainly on tuning the optical properties of the metal nanoparticles for optical sensing to explore the importance and applications of bioinspired silver nanoparticles. Further, this review deliberates the role of bioinspired silver nanoparticles (Ag NPs) in biomedical, agricultural, environmental, and energy applications. Profound insight into the antimicrobial properties of these nanoparticles is also appreciated. Tailor-made bioinspired nanoparticles with effectuating characteristics can unsurprisingly target tumor cells and distribute enwrapped payloads intensively. Existing challenges and prospects of bioinspired Ag NPs are also summarized. This review is expected to deliver perceptions about the progress of the next generation of bioinspired Ag NPs and their outstanding performances in various fields by promoting sustainable practices for fabricating optical sensing devices.
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Affiliation(s)
- Kshitij Rb Singh
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu 808-0196, Japan
| | - Arunadevi Natarajan
- Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore, Tamil Nadu 641004, India
| | - Shyam S Pandey
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu 808-0196, Japan
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20
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Zhang Y, Li K, Zang M, Cheng Y, Qi H. Graphene-based photocatalysts for degradation of organic pollution. CHEMOSPHERE 2023; 341:140038. [PMID: 37660797 DOI: 10.1016/j.chemosphere.2023.140038] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Compared with the traditional wastewater treatment technology, semiconductor photocatalysis is a rapidly emerging environment-friendly and efficient Advanced Oxidation Process for degradation of refractory organic contaminants. Single-component semiconductor photocatalysts exhibit poor photocatalytic performance and cannot meet the requirements of wastewater treatment. The combination of semiconductor photocatalysts and Graphene can effectively improve the photocatalytic activity and stability of semiconductor photocatalysts. This review focuses on the synergistic effect of several types of semiconductors with Graphene for photocatalytic degradation of organic pollutants. After a brief introduction of the photodegradation mechanism of semiconductor materials and the basic description of Graphene, the synthesis, characterization and degradation performance of various Graphene-based semiconductor photocatalysts are emphatically introduced.
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Affiliation(s)
- Yuxi Zhang
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Kuangjun Li
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Meng Zang
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Yuanyuan Cheng
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China.
| | - Hongbin Qi
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, PR China.
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21
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Shanmuganathan R, Sathiyavimal S, Hoang Le Q, M Al-Ansari M, A Al-Humaid L, Jhanani GK, Lee J, Barathi S. Green synthesized Cobalt oxide nanoparticles using Curcuma longa for anti-oxidant, antimicrobial, dye degradation and anti-cancer property. ENVIRONMENTAL RESEARCH 2023; 236:116747. [PMID: 37500035 DOI: 10.1016/j.envres.2023.116747] [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: 02/25/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 07/29/2023]
Abstract
In the present study, cobalt oxide nanoparticles have been synthesized using the root extract of Curcuma longa in a manner that is both environmentally friendly and economical. Initially, the synthesized nanoparticles were characterized using a UV-Vis spectroscopy analysis, in which plasma resonance at 345 nm was observed, which confirmed that CL-Cobalt oxide nanoparticles were synthesized. While FTIR analysis showed a peak at 597.37 cm-1 indicating Co-O stretching vibration. In addition, DLS, SEM and XRD analyses confirmed the synthesis of polydispersed (average size distribution of 97.5 ± 35.1 nm), cubic phase structure, and spherical-shaped CL-Cobalt oxide nanoparticles. CL-Cobalt oxide nanoparticles synthesized from green materials showed antioxidant and antimicrobial properties. CL-Cobalt oxide nanoparticles exhibited antibacterial activity against Gram negative (Klebsiella pneumoniae and Escherichia coli) and Gram positive bacteria (Bacillus subtilis, Staphylococcus aureus), while CL-Cobalt oxide nanoparticles additionally displayed significant antifungal activity against Aspergillus niger. CL-Cobalt oxide also showed application in a bioremediation perspective by showing strong photocatalytic degradation of methyl red, methyl orange and methyl blue dye. In addition, CL-Cobalt oxide also demonstrated anticancer activity against MDA-MB-468 cancer cell lines with an IC50 value of 150.8 μg/ml. Therefore, this is the first and foremost report on CL-Cobalt oxide nanoparticles synthesized using Curcuma longa showing antioxidant, antibacterial, antifungal, dye degradation and anticancer applications.
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Affiliation(s)
- Rajasree Shanmuganathan
- School of Medicine and Pharmacy, Duy Tan University, Da Nang, Viet Nam; Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam.
| | - Selvam Sathiyavimal
- University Centre for Research & Development, Chandigarh University, Mohali, 140103, India
| | - Quynh Hoang Le
- School of Medicine and Pharmacy, Duy Tan University, Da Nang, Viet Nam; Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam
| | - Mysoon M Al-Ansari
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Latifah A Al-Humaid
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - G K Jhanani
- Center for Global Health Research (CGHR), Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India.
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Selvaraj Barathi
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
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Vijeata A, Chaudhary GR, Chaudhary S, Umar A. Biogenic synthesis of highly fluorescent carbon dots using Azadirachta indica leaves: An eco-friendly approach with enhanced photocatalytic degradation efficiency towards Malachite green. CHEMOSPHERE 2023; 341:139946. [PMID: 37640216 DOI: 10.1016/j.chemosphere.2023.139946] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 08/10/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023]
Abstract
A simpler and efficient method has been developed for the green synthesis of highly fluorescent carbon dots (CDs) from Azadirachta Indica leaves. The surface morphology of developed CDs has shown the existence of spherical particles in the size range of 3-8 nm with superior biocompatibility and high quantum yield value i.e. 42.3%. The particles exhibited a highly fluorescent and crystalline nature along with a bandgap value of 4.02 eV. The prepared CDs served as a factorial design for the sensing and degradation of Malachite green among other dyes. The main perspective of the current finding is that the designed catalyst exhibits excellent sensing results towards Malachite green with a limit of detection i.e. 0.144 μM in the concentration range of 0-50 μM. Moreover, the UV triggered results of photocatalysis illustrated a good dye removal efficacy by developed CDs with an average of 90.73, 98.25, 52 and 6.13% degradation in Methylene blue (MB), Malachite green (MG), Rhodamine 6G (Rh 6G) and Methyl orange (MO) upon 70 min of irradiation with mercury lamp. Additionally, the proton NMR, FTIR and FESEM results of the recycled samples also confirm the complete degradation of MG dye with the application of N-CDs.
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Affiliation(s)
- Anjali Vijeata
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Savita Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India.
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts, and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia; Department of Materials Science and Engineering, The Ohio State University, Columbus, 43210, OH, USA.
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23
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Chaudhari RK, Shah PA, Shrivastav PS. Green synthesis of silver nanoparticles using Adhatoda vasica leaf extract and its application in photocatalytic degradation of dyes. DISCOVER NANO 2023; 18:135. [PMID: 37903994 PMCID: PMC10616034 DOI: 10.1186/s11671-023-03914-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/25/2023] [Indexed: 11/01/2023]
Abstract
The paper describes biogenic synthesis of silver nanoparticles (AgNPs) using Adhatoda vasica leaf extracts at room temperature. The prepared AgNPs were characterized by UV-visible spectroscopy, Fourier-transform infrared spectroscopy, powder X-ray diffraction, Energy dispersive X-ray (EDX), High Resolution Transmission Electron Microscope, Scanning Electron Microscopy and Thermogravimetric analyser. The bio reduction method is devoid of any toxic chemicals, organic solvents, and external reducing, capping and stabilizing agent. The synthesized AgNPs had spherical shape with particle size ranging between 3.88 and 23.97 nm and had face centered cubic structure. UV-visible spectral analysis confirmed the formation of AgNPs with a characteristic surface plasmon resonance band at 419 nm. The EDX pattern revealed the presence of elemental Ag in AgNPs. The prepared AgNPs were used for degradation of Amaranth, Allura red and Fast green in aqueous medium, with ≥ 92.6% efficiency within 15 min using 5 mg of AgNPs. The optical bandgap, Eg value of 2.26 eV for AgNPs was found to be effective for rapid photocatalytic degradation of all the three dyes. The degradation process was observed to follow pseudo first order kinetics.
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Affiliation(s)
- Ronak Kumar Chaudhari
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad, Gujarat, 380009, India
| | - Priyanka A Shah
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad, Gujarat, 380009, India
- Department of Forensic Sciences, National Forensic Sciences University, Dharwad, Karnataka, 580011, India
| | - Pranav S Shrivastav
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad, Gujarat, 380009, India.
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Mukherjee A, Dhak P, Mandal D, Dhak D. Solvothermal synthesis of 3D rod-shaped Ti/Al/Cr nano-oxide for photodegradation of wastewater micropollutants under sunlight: a green way to achieve SDG:6. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30112-8. [PMID: 37812343 DOI: 10.1007/s11356-023-30112-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/24/2023] [Indexed: 10/10/2023]
Abstract
Waterbodies are day-by-day polluted by the various colored micropollutants, e.g., azo dyes enriched (carcinogenic, non-biodegradable) colored wastewater from textile industries. Water pollution has become a serious global issue as ~ 25% of health diseases are prompted by pollution as reported by WHO. Around 1 billion people will face water scarcity by 2025 and this water crisis is also a prime focus to the UNs' sustainable development goal 6 (SDG6: clean water and sanitation). To prevent the water pollution caused by micropollutants, a mesoporous, 3D rod-like nano-oxide Ti/Al/Cr (abbreviated as TAC) has been synthesized via the solvothermal method. TAC degraded all classes of azo dyes (mono, di, tri, etc.) with > 90% efficiency under renewable energy source solar irradiation within the pH range 2-11. The detailed study was done on the photodegradation of carcinogenic di-azo dye Congo red (CR) which is banned in many countries. TAC showed 90.64 ± 2% degradation efficiency for CR at pH 7. The proposed photodegradation mechanism of CR was confirmed by the high-resolution liquid chromatography-mass spectroscopy (HRLC-MS) analysis obeying the Pirkanniemi path. The photodegradation obeyed the pseudo-1st-order kinetics and was reusable up to successive 5 cycles which can be an efficient tool to meet the UNs' SDG:6.
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Affiliation(s)
- Arnab Mukherjee
- Nanomaterials Research Lab, Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, 723104, India
| | - Prasanta Dhak
- Department of Chemistry, Techno India University, Kolkata, 700091, India
| | - Debpriya Mandal
- Nanomaterials Research Lab, Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, 723104, India
| | - Debasis Dhak
- Nanomaterials Research Lab, Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, 723104, India.
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Saravanan A, Ragini YP, Kumar PS, Thamarai P, Rangasamy G. A critical review on the removal of toxic pollutants from contaminated water using magnetic hybrids. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:105099-105118. [PMID: 37740158 DOI: 10.1007/s11356-023-29811-z] [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: 02/14/2023] [Accepted: 09/06/2023] [Indexed: 09/24/2023]
Abstract
The persistence of organic/inorganic pollutants in the water has become a serious environmental issue. Among the different pollutants, dyes and heavy metal pollution in waterways are viewed as a global ecological problem that can have an impact on humans, plants, and animals. The necessity to develop a sustainable and environmentally acceptable approach to remove these toxic contaminants from the ecosystem has been raised. In the past two decades, rapid industrialization and anthropogenic activities in developed countries have aggravated environmental pollution. Industrial effluents that are discharged directly into the natural environment taint the water, which has a consequence for the water resources. Magnetic nanohybrids are broadly investigated materials used in the adsorption and photocatalytic degradation of poisonous pollutants present across water effluents. In the present review, the toxic health effects of heavy metals and dyes from the water environment have been discussed. This paper reviews the role of magnetic nanohybrids in the removal of pollutants from the water environment, providing an adequate point of view on their new advances regarding their qualities, connection methodologies, execution, and their scale-up difficulties.
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Affiliation(s)
- Anbalagan Saravanan
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | | | - Ponnusamy Senthil Kumar
- Centre for Pollution Control and Environmental Engineering, Pondicherry University, Chinna Kalapet, Puducherry-605014, India.
| | - Packiyam Thamarai
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - Gayathri Rangasamy
- School of Engineering, Lebanese American University, Byblos, Lebanon
- University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India
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26
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Tran Khac K, Hoang Phu H, Tran Thi H, Dinh Thuy V, Do Thi H. Biosynthesis of silver nanoparticles using tea leaf extract ( camellia sinensis) for photocatalyst and antibacterial effect. Heliyon 2023; 9:e20707. [PMID: 37860560 PMCID: PMC10582344 DOI: 10.1016/j.heliyon.2023.e20707] [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: 05/30/2023] [Revised: 08/30/2023] [Accepted: 10/04/2023] [Indexed: 10/21/2023] Open
Abstract
Silver nanoparticles (C. AgNPs) are synthesized by the biological reduction method using extracts from green tea leaves (Camellia Sinensis) collected from tea hills at an altitude of 100 m above the ground. The chemicals present in the tea leaf extract act as reducing agents used to reduce Ag+ ions to silver atoms to form C. AgNPs in the solution. In this work, we optimized the C. AgNPs synthesis process by investigating the influence of reaction parameters such as concentration of tea leaf extract (1 ppm-50 ppm), reaction temperature (30 °C-60 °C), reaction time (5 min-100 min), and reaction rate (400 rpm-800 rpm) through absorption UV-Vis spectroscopy, TEM transmission electron microscopy, and spectroscopy X-ray. Organic compounds in tea leaf extract are detected by NMR measurement. The functional groups on the C. AgNPs are shown on the Fourier transform infrared (FTIR) spectrum. The C. AgNPs are used to degrade MB dye at 10 ppm concentration based on the photocatalytic effect using a 6500 K white light source. The C. AgNPs have also been studied for their antibacterial activity on two bacteria, Pseudomonas aeruginosa (P.A) and Staphylococcus aureus (S.A), while a positive control is Ampicillin 50 mg/ml and a negative control is H2O. The results reveal that the C. AgNPs with diameters in the range of 25 nm-55 nm degrade 10 ppm MB dye after 1 h with photodegradation efficiency up to 96 %. The antibacterial ability of C. AgNPs against both bacteria is good, even superior to that of Ampicillin. Furthermore, the particle synthesis efficiency and therefore the antibacterial activity as well as the photodegradation effect of C. AgNPs are higher than previously reported. At the same time, using green tea leaf extract to synthesize C. AgNPs creates environmentally friendly products. These useful behaviors are the potential to increase the scope and applicability of C. AgNPs, especially for biomedical applications in the near future.
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Affiliation(s)
- Khoi Tran Khac
- Thai Nguyen University of Education, No. 20, Luong Ngoc Quyen Street, Quang Trung Ward, Thai Nguyen City, 25000, Viet Nam
- Faculty of Fundamental Science, Phenikaa University, Nguyen Van Trac Street, Yen Nghia Ward, Ha Dong District, Hanoi City, Ha Đong, 100000, Viet Nam
| | - Hiep Hoang Phu
- Thai Nguyen University of Education, No. 20, Luong Ngoc Quyen Street, Quang Trung Ward, Thai Nguyen City, 25000, Viet Nam
| | - Hue Tran Thi
- Thai Nguyen University of Education, No. 20, Luong Ngoc Quyen Street, Quang Trung Ward, Thai Nguyen City, 25000, Viet Nam
| | - Van Dinh Thuy
- Thai Nguyen University of Education, No. 20, Luong Ngoc Quyen Street, Quang Trung Ward, Thai Nguyen City, 25000, Viet Nam
| | - Hue Do Thi
- Thai Nguyen University of Education, No. 20, Luong Ngoc Quyen Street, Quang Trung Ward, Thai Nguyen City, 25000, Viet Nam
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27
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Silva JM, Teixeira AB, Reis AC. Silver-based gels for oral and skin infections: antimicrobial effect and physicochemical stability. Future Microbiol 2023; 18:985-996. [PMID: 37750752 DOI: 10.2217/fmb-2023-0034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023] Open
Abstract
Aim: To systematically evaluate the literature on silver (Ag) gels and their antimicrobial efficacy and physicochemical stability. Materials & methods: A search was performed in PubMed/MEDLINE, LILACS, Web of Science, Scopus, Embase and Google Scholar. Results: Gels were formulated with Ag nanoparticles, Ag oxynitrate and colloidal Ag and showed antimicrobial activity for concentrations ranging from 0.002 to 30%. Gels showed stability of their chemical components, and their physicochemical properties, including viscosity, organoleptic characteristics, homogeneity, pH and spreadability, were suitable for topical application. Conclusion: Ag-based gels show antimicrobial action proportional to concentration, with higher action against Gram-negative bacteria and physicochemical stability for oral and skin infection applications.
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Affiliation(s)
- João Mc Silva
- Department of Dental Materials & Prosthesis, Ribeirão Preto Dental School, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, São Paulo, 14040-904, Brazil
| | - Ana Bv Teixeira
- Department of Dental Materials & Prosthesis, Ribeirão Preto Dental School, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, São Paulo, 14040-904, Brazil
| | - Andréa C Reis
- Department of Dental Materials & Prosthesis, Ribeirão Preto Dental School, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, São Paulo, 14040-904, Brazil
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28
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Alruwaili M, Roy A, Alhabradi M, Yang X, Tahir AA. Synergistic Photoelectrochemical and Photocatalytic Properties of the Cobalt Nanoparticles-Embedded TiVO 4 Thin Film. ACS OMEGA 2023; 8:27067-27078. [PMID: 37546630 PMCID: PMC10398684 DOI: 10.1021/acsomega.3c02089] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/14/2023] [Indexed: 08/08/2023]
Abstract
To optimize the semiconductor properties of TiVO4 thin films and enhance their performance, we incorporated cobalt nanoparticles as an effective co-catalyst consisting of a non-noble metal. Through an investigation into the impact of cobalt loading on spray pyrolyzed TiVO4 thin films, we observed a significant enhancement in the photoelectrochemical (PEC) performance. This was accomplished by carefully optimizing the concentrations of Co2+ (3 mM) to fabricate a composite electrode, resulting in a higher photocurrent density for the TiVO4:Co photoanode. When an applied potential of 1.23 V (vs RHE) was used, the photocurrent density reached 450 μA/cm2, approximately 5 times higher than that of bare TiVO4. We conducted a thorough characterization of the composite structure and optical properties. Additionally, electrochemical impedance spectroscopy analysis indicated that the TiVO4/Co thin film exhibited a smaller semicircle, indicating a significant improvement in charge transfer at the interface. In comparison to bare TiVO4, the TiVO4/Co composite exhibited a notable improvement in photocatalytic activity when degrading methylene blue (MB) dye, a widely employed model dye. Under light illumination, a TiVO4/Co thin film exhibited a notable dye degradation rate of 97% within a 45 min duration. The scalability of our fabrication method makes it suitable for large-area devices intended for sunlight-driven PEC seawater splitting studies.
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Affiliation(s)
- Manal Alruwaili
- Solar
Energy Research Group, Environment and Sustainability Institute, Faculty
of Environment, Science and Economy, University
of Exeter, Penryn TR10 9FE, U.K.
- Physics
Department, Faculty of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia
| | - Anurag Roy
- Solar
Energy Research Group, Environment and Sustainability Institute, Faculty
of Environment, Science and Economy, University
of Exeter, Penryn TR10 9FE, U.K.
| | - Mansour Alhabradi
- Solar
Energy Research Group, Environment and Sustainability Institute, Faculty
of Environment, Science and Economy, University
of Exeter, Penryn TR10 9FE, U.K.
- Department
of Physics, Faculty of Science, Majmaah
University, Majmaah 11952, Saudi Arabia
| | - Xiuru Yang
- Solar
Energy Research Group, Environment and Sustainability Institute, Faculty
of Environment, Science and Economy, University
of Exeter, Penryn TR10 9FE, U.K.
| | - Asif Ali Tahir
- Solar
Energy Research Group, Environment and Sustainability Institute, Faculty
of Environment, Science and Economy, University
of Exeter, Penryn TR10 9FE, U.K.
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29
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Azeez L, Lateef A, Olabode O. An overview of biogenic metallic nanoparticles for water treatment and purification: the state of the art. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:851-873. [PMID: 37651325 PMCID: wst_2023_255 DOI: 10.2166/wst.2023.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The environment is fundamental to human existence, and protecting it from dangerous contaminants should be a top priority for all stakeholders. Reducing garbage output has helped, but as the world's population grows, more waste will be generated. Tons of waste inadvertently and advertently received by environmental matrixes adversely affect the sustainable environment. The pollution caused by these activities affects the environment and human health. Conventional remediation processes ranging from chemical, physical, and biological procedures use macroaggregated materials and microorganisms to degrade or remove pollutants. Undesirable limitations of expensiveness, disposal challenges, maintenance, and formation of secondary contaminants abound. Additionally, multiple stages of treatments to remove different contaminants are time-consuming. The need to avoid these limitations and shift towards sustainable approaches brought up nanotechnology options. Currently, nanomaterials are being used for environmental rejuvenation that involves the total degradation of pollutants without secondary pollution. As nanoparticles are primed with vast and modifiable reactive sites for adsorption, photocatalysis, and disinfection, they are more useful in remediating pollutants. Review articles on metallic nanoparticles usually focus on chemically synthesized ones, with a particular focus on their adsorption capacity and toxicities. Therefore, this review evaluates the current status of biogenic metallic nanoparticles for water treatment and purification.
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Affiliation(s)
- Luqmon Azeez
- Department of Pure and Applied Chemistry, Osun State University, Osogbo, Nigeria E-mail:
| | - Agbaje Lateef
- Nanotechnology Research Group (NANO+), Laboratory of Industrial Microbiology and Nanobiotechnology, Department of Pure and Applied Biology, Ladoke Akintola University of Technology, PMB 4000, Ogbomoso, Nigeria
| | - Olalekan Olabode
- Department of Pure and Applied Chemistry, Osun State University, Osogbo, Nigeria; Department of Chemistry, Mississippi State University, MS 39762-9573, USA
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30
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Sharma I, Gupta P, Kango N. Synthesis and characterization of keratinase laden green synthesized silver nanoparticles for valorization of feather keratin. Sci Rep 2023; 13:11608. [PMID: 37463953 DOI: 10.1038/s41598-023-38721-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 07/13/2023] [Indexed: 07/20/2023] Open
Abstract
This study focuses on the efficient and cost-effective synthesis of silver nanoparticles (AgNPs) using plant extracts, which have versatile and non-toxic applications. The research objectives include synthesizing AgNPs from readily available plant extracts, optimizing their production and multi scale characterization, along with exploring their use for enzyme immobilization and mitigation of poultry feather waste. Among the plant extracts tested, the flower extract of Hibiscus rosa-sinensis (HF) showed the most potential for AgNP synthesis. The synthesis of HF-mediated AgNPs was optimized using response surface methodology (RSM) for efficient and environment friendly production. Additionally, the keratinase enzyme obtained from Bacillus sp. NCIM 5802 was covalently linked to AgNPs, forming a keratinase nanocomplex (KNC) whose biochemical properties were evaluated. The KNC demonstrated optimal activity at pH 10.0 and 60 °C and it displayed remarkable stability in the presence of various inhibitors, metal ions, surfactants, and detergents. Spectroscopic techniques such as FTIR, UV-visible, and X-ray diffraction (XRD) analysis were employed to investigate the formation of biogenic HF-AgNPs and KNC, confirming the presence of capping and stabilizing agents. The morphological characteristics of the synthesized AgNPs and KNC were determined using transmission electron microscopy (TEM) and particle size analysis. The study highlighted the antimicrobial, dye scavenging, and antioxidant properties of biogenic AgNPs and KNC, demonstrating their potential for various applications. Overall, this research showcases the effectiveness of plant extract-driven green synthesis of AgNPs and the successful development of keratinase-laden nanocomplexes, opening possibilities for their use in immobilizing industrial and commercial enzymes.
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Affiliation(s)
- Isha Sharma
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, Madhya Pradesh, 470003, India
| | - Pranshi Gupta
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, Madhya Pradesh, 470003, India
| | - Naveen Kango
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, Madhya Pradesh, 470003, India.
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31
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Moraes LC, Gomes MP, Ribeiro-Andrade R, Garcia QS, Figueredo CC. Green synthesized silver nanoparticles for iron and manganese ion removal from aqueous solutions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121483. [PMID: 36990344 DOI: 10.1016/j.envpol.2023.121483] [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: 01/13/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Microalgae and Cyanobacteria extracts can be used for the synthesis of spherical silver nanoparticles by the reduction of AgNO3 under air atmosphere at room temperature. Here, we synthesized AgNPs using extracts of one cyanobacterium (Synechococcus elongatus) and two microalgae (Stigeoclonium sp. and Cosmarium punctulatum). The nature of the AgNPs was characterized by TEM, HR-TEM, EDS, and UV-Vis. Considering the large quantity of functional groups in the ligands of AgNPs, we suppose they could retain ion metals, which would be useful for water decontamination. Thus, their capacity to adsorb iron and manganese at concentrations of 1.0, 5.0, and 10.0 mg L-1 in aqueous solutions was evaluated. All experiments were performed in triplicate of microorganism extract with no addition of AgNO3 (control) and AgNP colloid (treatment) at room temperature. The ICP analyses showed that the treatments containing nanoparticles were commonly more efficient at removing Fe3+ and Mn2+ ions than the corresponding controls. Interestingly, the smaller nanoparticles (synthesized by Synechococcus elongatus) were the most effective at removing Fe3+ and Mn2+ ions, probably due to their higher surface area:volume ratio. The green synthesized AgNPs proved to be an interesting system for the manufacture of biofilters that could be used to capture contaminant metals in water.
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Affiliation(s)
- Leonardo C Moraes
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Pampulha, Caixa Postal 486, Belo Horizonte, Minas Gerais, 31970-901, Brazil
| | - Marcelo P Gomes
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal Do Paraná, Avenida Coronel Francisco H. Dos Santos, 100, Centro Politécnico Jardim Das Américas, C.P. 19031, Curitiba, 81531-980, Paraná, Brazil
| | - Rodrigo Ribeiro-Andrade
- Centro de Microscopia da Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Pampulha, Caixa Postal 486, Belo Horizonte, Minas Gerais, 31970-901, Brazil
| | - Queila S Garcia
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Pampulha, Caixa Postal 486, Belo Horizonte, Minas Gerais, 31970-901, Brazil
| | - Cleber C Figueredo
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Pampulha, Caixa Postal 486, Belo Horizonte, Minas Gerais, 31970-901, Brazil.
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Dilawar S, Albalawi K, Khan AU, Tahir K, Zaki MEA, Musad Saleh EA, Almarhoon ZM, Althagafi TM, El-Zahhar AA, El-Bialy E. Rapid photodegradation of toxic organic compounds and photo inhibition of bacteria in the presence of novel hydrothermally synthesized Ag/Mn-ZnO nanomaterial. ENVIRONMENTAL RESEARCH 2023; 231:116093. [PMID: 37178753 DOI: 10.1016/j.envres.2023.116093] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/04/2023] [Accepted: 05/09/2023] [Indexed: 05/15/2023]
Abstract
Purified water is the most concerning issue these days, and utmost conventional practices are allied with various downsides. Therefore, an ecologically benign and easily amicable therapeutic approach is the requirement. In this wonder, nanometer phenomena bring an innovative change to the material world. It has the potential to produce nanosized materials for wide-ranging applications. The subsequent research highlights the synthesis of Ag/Mn-ZnO nanomaterial via a one-pot hydrothermal route with an efficient photocatalytic activity against organic dyes and bacteria. The outcomes revealed that the size of the particle (4-5 nm) and dispersion of spherically shaped silver nanoparticles intensely affected by employing Mn-ZnO as a support material. Use of silver NPs as a dopant activates the active sites of the support medium and provides a higher surface area to upsurge the degradation rate. The synthesized nanomaterial was evaluated against photocatalytic activity using Methyl orange and alizarin red as model dyes and confided that more than 70% of both the dyes degraded under 100 min duration. It is well recognize that the modified nanomaterial recreates an essential role in every light-based reaction, and virtually produced highly reactive oxygen species. The synthesized nanomaterial was also evaluated against E. coli bacterium both in light and dark. The zone of inhibition in the presence of Ag/Mn-ZnO was observed both in light (18 ± 0.2 mm) and dark (12 ± 0.4 mm). The hemolytic activity shows that Ag/Mn-ZnO has very low toxicity. Hence, the prepared Ag/Mn-ZnO nanomaterial might be an effective tool against the depletion of further harmful environmental pollutants and microbes.
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Affiliation(s)
- Sundas Dilawar
- Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan
| | - Karma Albalawi
- Department of Chemistry, Faculty of Science, Tabuk University, Tabuk, Saudi Arabia
| | - Afaq Ullah Khan
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Kamran Tahir
- Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan.
| | - Magdi E A Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, 13318, Saudi Arabia
| | - Ebraheem Abdu Musad Saleh
- Chemistry Department, College of Arts & Science, Prince Sattam Bin Abdulaziz University, Wadi Al-Dawaser, Alkharj, Saudi Arabia
| | - Zainab M Almarhoon
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Talal M Althagafi
- Department of Physics, College of Science, Taif University, Taif, 21944, Saudi Arabia
| | - Adel A El-Zahhar
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, 9004, Saudi Arabia
| | - E El-Bialy
- Physics Department, Samtah University College, Jazan University, Jazan, 45142, Saudi Arabia
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33
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Palani G, Trilaksana H, Sujatha RM, Kannan K, Rajendran S, Korniejenko K, Nykiel M, Uthayakumar M. Silver Nanoparticles for Waste Water Management. Molecules 2023; 28:molecules28083520. [PMID: 37110755 PMCID: PMC10145794 DOI: 10.3390/molecules28083520] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/03/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Rapidly increasing industrialisation has human needs, but the consequences have added to the environmental harm. The pollution caused by several industries, including the dye industries, generates a large volume of wastewater containing dyes and hazardous chemicals that drains industrial effluents. The growing demand for readily available water, as well as the problem of polluted organic waste in reservoirs and streams, is a critical challenge for proper and sustainable development. Remediation has resulted in the need for an appropriate alternative to clear up the implications. Nanotechnology is an efficient and effective path to improve wastewater treatment/remediation. The effective surface properties and chemical activity of nanoparticles give them a better chance to remove or degrade the dye material from wastewater treatment. AgNPs (silver nanoparticles) are an efficient nanoparticle for the treatment of dye effluent that have been explored in many studies. The antimicrobial activity of AgNPs against several pathogens is well-recognised in the health and agriculture sectors. This review article summarises the applications of nanosilver-based particles in the dye removal/degradation process, effective water management strategies, and the field of agriculture.
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Affiliation(s)
- Geetha Palani
- Institute of Agricultural Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, India
| | - Herri Trilaksana
- Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia
| | - R Merlyn Sujatha
- Department of Biomedical Engineering, JNN Institute of Engineering, Kannigaipair 601102, India
| | - Karthik Kannan
- Chemical Sciences Department and the Radical Research Centre, Ariel University, Ariel 40700, Israel
| | - Sundarakannan Rajendran
- Institute of Agricultural Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, India
| | - Kinga Korniejenko
- Faculty of Material Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, Poland
| | - Marek Nykiel
- Faculty of Material Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, Poland
| | - Marimuthu Uthayakumar
- Department of Mechanical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India
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Wang R, Li R, Zheng P, Yang Z, Qian C, Wang Z, Qian S. Silver Nanoparticles Modified with Polygonatum sibiricum Polysaccharide Improve Biocompatibility and Infected Wound Bacteriostasis. J Microbiol 2023:10.1007/s12275-023-00042-8. [PMID: 37052796 DOI: 10.1007/s12275-023-00042-8] [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: 01/30/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 04/14/2023]
Abstract
Silver nanoparticles (AgNPs) exhibit strong antibacterial activity and do not easily induce drug resistance; however, the poor stability and biocompatibility in solution limit their widespread application. In this study, AgNPs were modified with Polygonatum sibiricum Polysaccharide (PSP) to synthesize PSP@AgNPs with good stability, biocompatibility, and antibacterial activity. When PSP@AgNP synthesis was performed under a reaction time of 70 min, a reaction temperature of 35 °C, and an AgNO3-to-PSP volume ratio of 1:1, the synthesized PSP@AgNPs were more regular and uniform than AgNPs, and their particle size was around 10 nm. PSP@AgNPs exhibited lower cytotoxicity and hemolysis, and stronger bacteriostatic activity. PSP@AgNPs damage the integrity and internal structure of cells, resulting in the leakage of intracellular nucleic acids and proteins. The rate of cell membrane damage in Escherichia coli and Staphylococcus aureus treated with PSP@AgNPs increased by 38.52% and 43.75%, respectively, compared with that of AgNPs. PSP@AgNPs inhibit the activities of key enzymes related to antioxidant, energy and substance metabolism in cells. The inhibitory effects on the activities of superoxide dismutase (SOD), catalase (CAT), adenosine triphosphate enzyme (ATPase), malate dehydrogenase (MDH), and succinate dehydrogenase (SDH) in E. coli and S. aureus cells were significantly higher than those of AgNPs. In addition, compared with AgNPs, PSP@AgNPs promote faster healing of infected wounds. Therefore, PSP@AgNPs represent potential antibacterial agents against wound infections.
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Affiliation(s)
- Ruonan Wang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China
| | - Rongyu Li
- School of Basic Medical Sciences, Wannan Medical College, Wuhu, 241002, People's Republic of China
| | - Peng Zheng
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China
| | - Zicheng Yang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China
| | - Cheng Qian
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China
| | - Zhou Wang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China
| | - Senhe Qian
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China.
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Mota DR, Martini WDS, Pellosi DS. Influence of Ag size and shape in dye photodegradation using silver nanoparticle/ZnO nanohybrids and polychromatic light. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:57667-57682. [PMID: 36967428 DOI: 10.1007/s11356-023-26580-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 03/16/2023] [Indexed: 05/10/2023]
Abstract
In this work, we propose zinc oxide (ZnO) surface functionalization with plasmonic silver nanoparticles (AgNP) of different sizes and shapes (spheres, prisms, and rods) creating ZnO/AgNP nanohybrids. These were characterized by UV-Vis spectroscopy, X-ray diffraction, transmission electron microscopy, Fourier-transform infrared spectroscopy, diffuse reflectance spectroscopy, and photoluminescence spectroscopy. Surface functionalization with AgNP improved photocatalyst electronic properties, its visible light absorption, and slow electron/hole recombination on the ZnO surface. Photocatalysis assays performed with a polychromatic Hg lamp degraded methyl orange, a model of persistent organic pollutant in water. A systematic study showed that the photodegradation kinetics of the nanohybrids are significantly more efficient than pure ZnO (up to 18 times) and that AgNP size and especially its shape are important in dye degradation. Mechanistic studies revealed that degradation occurred by direct dye reduction on the ZnO surface holes, ZnO electron transfer to Ag followed by •O2- formation, and direct injection of AgNP hot electrons in the ZnO conduction band. The last effect was stronger for anisotropic AgNP, which explains their high kinetic degradation rates. Therefore, the rational design in ZnO/AgNP nanohybrid engineering and a systematic approach used in this manuscript allowed a detailed description of photodegradation process that occur at ZnO/AgNP interface. Our results are not conclusive about AgNP size; on the other hand, it clearly demonstrates that anisotropic nanoparticles (as Ag rods and prims) present superior photodegradation efficiency and are promising particles for further large-scale use of solar-irradiated nanohybrids.
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Affiliation(s)
- Danielle Ramos Mota
- Laboratory of Hybrid Materials, Department of Chemistry, Federal University of São Paulo, Rua São Nicolau 210, Diadema, SP, 09913-030, Brazil
| | - William da Silva Martini
- Laboratory of Hybrid Materials, Department of Chemistry, Federal University of São Paulo, Rua São Nicolau 210, Diadema, SP, 09913-030, Brazil
| | - Diogo Silva Pellosi
- Laboratory of Hybrid Materials, Department of Chemistry, Federal University of São Paulo, Rua São Nicolau 210, Diadema, SP, 09913-030, Brazil.
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Yang W, Ding K, Chen G, Wang H, Deng X. Synergistic Multisystem Photocatalytic Degradation of Anionic and Cationic Dyes Using Graphitic Phase Carbon Nitride. Molecules 2023; 28:molecules28062796. [PMID: 36985766 PMCID: PMC10051406 DOI: 10.3390/molecules28062796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/22/2023] Open
Abstract
Graphitic phase carbon nitride (g-C3N4) is a promising photocatalytic environmental material. For this study, the graphitic phase carbon nitride was prepared using a thermal polymerization method. The characteristic peaks, structures, and morphologies were determined using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffractometry (XRD), and scanning electron microscopy (SEM), respectively. Under the synergetic visible light catalysis of H2O2 and Na2S2O8, the degradation effects of g-C3N4 on the anionic dye methyl orange (MO) and the cationic dye rhodamine b (Rhb) were investigated. The effects of adding different volumes of H2O2 and Na2S2O8 were likewise tested. The results showed that the above two synergistic systems increased the degradation rates of MO and Rhb by 2.5 and 3.5 times, respectively, compared with pure g-C3N4, and that the degradation rates of both MO and Rhb reached 100% within 120 min and 90 min, respectively, in accordance with the primary reaction kinetics. When H2O2 and Na2S2O8 were added dropwise at 10 mL each, the degradation rates of MO and Rhb were 82.22% and 99.81%, respectively, after 30 min of open light. The results of experiments upon both zeta potential and radical quenching showed that ·OH and ·O2− were the main active radicals for dye degradation in our synergistic system. In addition, stability tests showed that the photocatalysts in the synergistic system still had good reusability. Therefore, the use of a synergistic system can effectively reduce the photogenerated electron-hole pair complexation rate, representing a significant improvement in both photocatalytic degradation and for stability levels.
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Affiliation(s)
- Wen Yang
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
| | - Kun Ding
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Correspondence:
| | - Guangzhou Chen
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China
| | - Hua Wang
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China
| | - Xinyue Deng
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China
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Anaerobic Membrane Bioreactor (AnMBR) for the Removal of Dyes from Water and Wastewater: Progress, Challenges, and Future Perspectives. Processes (Basel) 2023. [DOI: 10.3390/pr11030855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
The presence of dyes in aquatic environments can have harmful effects on aquatic life, including inhibiting photosynthesis, decreasing dissolved oxygen levels, and altering the behavior and reproductive patterns of aquatic organisms. In the initial phase of this review study, our aim was to examine the categories and properties of dyes as well as the impact of their toxicity on aquatic environments. Azo, phthalocyanine, and xanthene are among the most frequently utilized dyes, almost 70–80% of used dyes, in industrial processes and have been identified as some of the most commonly occurring dyes in water bodies. Apart from that, the toxicity effects of dyes on aquatic ecosystems were discussed. Toxicity testing relies heavily on two key measures: the LC50 (half-lethal concentration) and EC50 (half-maximal effective concentration). In a recent study, microalgae exposed to Congo Red displayed a minimum EC50 of 4.8 mg/L, while fish exposed to Disperse Yellow 7 exhibited a minimum LC50 of 0.01 mg/L. Anaerobic membrane bioreactors (AnMBRs) are a promising method for removing dyes from water bodies. In the second stage of the study, the effectiveness of different AnMBRs in removing dyes was evaluated. Hybrid AnMBRs and AnMBRs with innovative designs have shown the capacity to eliminate dyes completely, reaching up to 100%. Proteobacteria, Firmicutes, and Bacteroidetes were found to be the dominant bacterial phyla in AnMBRs applied for dye treatment. However, fouling has been identified as a significant drawback of AnMBRs, and innovative designs and techniques are required to address this issue in the future.
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38
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Sustainable and energy-efficient photocatalytic degradation of textile dye assisted by ecofriendly synthesized silver nanoparticles. Sci Rep 2023; 13:2302. [PMID: 36759696 PMCID: PMC9911601 DOI: 10.1038/s41598-023-29507-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
In this study, we have touched on two goals of sustainable development, namely, the provision of clean water and sanitation and clean energy at acceptable prices, hoping for good health for all ages. A green economical method was used to prepare silver nanoparticles from chitosan biopolymer. AgNPs were fully characterized using UV-Vis, FTIR, XRD, HR-TEM, and EDX analysis. Different concentrations (0.02-0.18 g/L) of the nanoparticles were integrated into a mixture of heterogeneous nano photocatalysts TiO2 and ZnO (1:1 weight ratio) under UV irradiation for the photocatalytic degradation of Acid Red 37 textile dye to obtain clean water. The kinetic description of the performed photocatalytic process was presented assuming a pseudo-first-order reaction. The data revealed that increasing the concentration of AgNPs in the catalytic mixture showed a high apparent rate constant (kapp) accompanied by an increase in the apparent quantum yield (%Qapp), followed by dye destruction after a very short time (t0.5 = 3 min). Since the photocatalytic degradation process consumes electrical energy, the electrical energy per order (EE/O) was calculated, showing a low value of 20 kWh/m3/order, using 0.18 g/L AgNPs, indicating that the elicited photocatalytic degradation method is a sustainable one for the mineralization of the targeted dye.
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39
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Tamed Synthesis of AgNPs for Photodegradation and Anti-Bacterial Activity: Effect of Size and Morphology. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Chinnasamy R, Chinnaperumal K, Venkatesan M, Jogikalmat K, Cherian T, Willie P, Malafaia G. Eco-friendly synthesis of Ag-NPs using Endostemon viscosus (Lamiaceae): Antibacterial, antioxidant, larvicidal, photocatalytic dye degradation activity and toxicity in zebrafish embryos. ENVIRONMENTAL RESEARCH 2023; 218:114946. [PMID: 36493805 DOI: 10.1016/j.envres.2022.114946] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Nanotechnology is a multidisciplinary area of study that has grown significantly in serving many functions and impacting human society. New fields of science have been facilitated by the clean, non-toxic, and biocompatible nature of plant-derived nanoparticles. The present study deals with the first green synthesis of silver nanoparticles (Ag-NPs) using Endostemon viscosus, and their synthesized Ag NPs were characterized by different spectral methods (UV-vis Spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction Spectroscopy (XRD), Transmission Electron Microscopy (TEM) and Energy dispersive X-ray Spectroscopy (EDAX). The change initially observed the production of Ag-NPs in color from green to ash and then confirmed by SPR band at 435 nm in UV-vis spectral analysis. The FTIR findings indicate that many functional groups belong to the pharmaceutically useful phytochemicals, which interact as reducing, capping, and stabilizing agents in synthesizing silver nanoparticles. The predominant peaks in the XRD pattern belong to the planes 210°, 111°, 200°, 241°, and 311° and thus demonstrated the Ag-NPs FCC crystal structure. TEM analysis exhibited spherical-shaped particles with an average size of 13 nm, and the EDAX band showed a distinctive metallic silver peak at 3.0 keV. The antibacterial activity of Ag-NPs tested to show a maximum zone of inhibition of 19 mm for Staphylococcus aureus and 15 mm for Escherichia coli at 100 μg/mL, respectively. Bio-fabricated Ag-NPs were assessed for antioxidant activity (DPPH with % inhibition 57.54% and FRAP with % inhibition 70.89%). The biosynthesized Ag-NPs demonstrated potential larvicidal efficacy against Aedes aegypti with more than 90% at 250 μg/mL. Histological profiles were altered while treating with Ag-NPs at 250 μg/mL. The photocatalytic activity of synthesized E. viscosus Ag-NPs was tested against methylene blue (MB) and crystal violet (CV), and the maximum degradation efficiency was found as 90 and 94%, respectively. Furthermore, the toxicity test on zebrafish embryos demonstrated that aberrations have only been induced at concentrations higher than 500 μg/mL. We conclude that the greenly produced Ag-NPs may find use in biomedical applications based on bacteria and cost-effective industrial wastewater treatment.
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Affiliation(s)
- Ragavendran Chinnasamy
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 600 077, India
| | - Kamaraj Chinnaperumal
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research and Virtual Education, SRM Institute of Science and Technology (SRMIST), Kattankulathur, Chennai, 603203, Tamil Nadu, India
| | - Manigandan Venkatesan
- Department of Medicine, University of Texas Health Science Center, San Antonio, TX, USA
| | - Krithikadatta Jogikalmat
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 600 077, India
| | - Tijo Cherian
- Department of Ocean Studies and Marine Biology, Pondicherry University, Port Blair Campus, Brookshabad, Port Blair, Andamans, 744112, India
| | - Peijnenburg Willie
- Leiden University, Institute of Environmental Sciences (CML), P.O. Box 9518, 2300 RA, Leiden, the Netherlands; National Institute of Public Health and the Environment (RIVM), Center for Safety of Substances and Products, P.O. Box 1, Bilthoven, the Netherlands
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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41
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Fatima S, Ceesay AS, Khan MS, Sarwar R, Bilal M, Uddin J, Ul-Hamid A, Khan A, Riaz N, Al-Harrasi A. Visible Light-Induced Reactive Yellow 145 Discoloration: Structural and Photocatalytic Studies of Graphene Quantum Dot-Incorporated TiO 2. ACS OMEGA 2023; 8:3007-3016. [PMID: 36713734 PMCID: PMC9878638 DOI: 10.1021/acsomega.2c05805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/14/2022] [Indexed: 06/18/2023]
Abstract
Visible light-induced photocatalytic treatment of organic waste is considered a green and efficient route. This study explored the structural and photocatalytic performance of graphene quantum dot (GQD)-incorporated TiO2 nanocomposites to treat reactive yellow 145 (RY145) dye. For the effective removal of the RY145, efforts were made to better understand the kinetics of the process and optimization of the treatment parameters. Different GQD-doped TiO2 nanocomposites were synthesized employing the sol-gel method. Physicochemical characteristics of the synthesized nanocomposites were studied through FTIR, XRD, UV-visible spectroscopy, SEM, and EDX. Screening studies were conducted for synthesis and reaction optimization. The results indicated that GQD-TiO2 significantly enhanced the photocatalytic discoloration for RY145 dye. Among the synthesized nanocomposites, 15GQD-TiO2 calcined at 300 exhibited 99.3% RY145 discoloration in 30 min under visible light irradiation. Following the pseudo-first-order reaction, the photocatalytic reaction constant K app progressively declined with an increase in the concentration of RY145. The heterogeneous reaction system conformed to the Langmuir-Hinshelwood isotherm, as indicated by the K C (1.08 mg L-1 min-1) and the K LH (0.18 L mg-1) values. O2 •- was found to be the major contributor in GQD-TiO2-300 to decolorize RY154, while TiO2 and GQDs played a vital role in generation of electrons and holes. Additionally, after recycling to the seventh cycle, only 9% decline in photocatalytic performance was observed for the synthesized nanocomposite.
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Affiliation(s)
- Syeda
Kinza Fatima
- Department
of Environmental Sciences, COMSATS University
Islamabad, Abbottabad Campus, 22020Abbottabad, Pakistan
| | - Ansumana Sangi Ceesay
- Department
of Environmental Sciences, COMSATS University
Islamabad, Abbottabad Campus, 22020Abbottabad, Pakistan
- Department
of Water Resources, Water Quality Laboratory, 7 Marina Parade, 00220Banjul, The
Gambia
| | - Muhammad Saqib Khan
- Department
of Environmental Sciences, COMSATS University
Islamabad, Abbottabad Campus, 22020Abbottabad, Pakistan
| | - Rizwana Sarwar
- Department
of Chemistry, COMSATS University Islamabad, Abbottabad Campus, 22020Abbottabad, Pakistan
| | - Muhammad Bilal
- Department
of Environmental Sciences, COMSATS University
Islamabad, Abbottabad Campus, 22020Abbottabad, Pakistan
| | - Jalal Uddin
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, 62529Abha, Kingdom of Saudi Arabia
| | - Anwar Ul-Hamid
- Centre
for
Engineering Research, King Fahd University
of Petroleum and Minerals, 31261Dhahran, Saudi Arabia
| | - Ajmal Khan
- Natural
and Medical Sciences Research Center, University
of Nizwa, 616Nizwa, Sultanate of Oman
| | - Nadia Riaz
- Department
of Environmental Sciences, COMSATS University
Islamabad, Abbottabad Campus, 22020Abbottabad, Pakistan
| | - Ahmed Al-Harrasi
- Natural
and Medical Sciences Research Center, University
of Nizwa, 616Nizwa, Sultanate of Oman
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42
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Equilibrium, kinetic, and thermodynamic studies of the adsorption of anionic and cationic dyes from aqueous solution using agricultural waste biochar. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-022-02721-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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43
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Kumar A, Singla Y, Sharma M, Bhardwaj A, Krishnan V. Two dimensional S-scheme Bi 2WO 6-TiO 2-Ti 3C 2 nanocomposites for efficient degradation of organic pollutants under natural sunlight. CHEMOSPHERE 2022; 308:136212. [PMID: 36041524 DOI: 10.1016/j.chemosphere.2022.136212] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/29/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Two-dimensional (2D) materials have fascinated the researchers to exploit their properties including large surface area, ability to act as a support and to form face-to-face interfacial contact with other 2D materials for fabricating efficient photocatalytic materials. In this work, Bi2WO6, TiO2 and Ti3C2 nanosheets have been used synthesizing different series of binary Bi2WO6-TiO2 and ternary Bi2WO6-TiO2-Ti3C2 2D nanocomposites by an electrostatic self-assembly synthesis route. The as-prepared pristine materials and binary and ternary nanocomposites were characterized by different structural, morphological and compositional characterization techniques to confirm their successful synthesis and 2D morphology. It was found that the optimized Bi2WO6-TiO2 (20 wt%) and Bi2WO6-TiO2 (20 wt%)-Ti3C2 (5 wt%) nanocomposites showed 97.0% and 98.5% degradation of methyl green in 80 min and 40 min, respectively, which was higher than their pristine counterparts. The enhanced activity was credited to the large surface area offered by 2D nanocomposites, pollutant adsorption and enhanced photogenerated charge separation and transfer facilitated by S-scheme mechanism and face-to-face interfacial contact of different components of these nanocomposites. This work delivers an example of highly efficient 2D nanocomposites and discusses the role of Ti3C2 as an electron acceptor in S-scheme photocatalytic system.
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Affiliation(s)
- Ashish Kumar
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, 175075, Himachal Pradesh, India; Department of Chemistry, Sardar Patel University Mandi, Mandi, 175001, Himachal Pradesh, India
| | - Yash Singla
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, 175075, Himachal Pradesh, India
| | - Manisha Sharma
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, 175075, Himachal Pradesh, India
| | - Akhil Bhardwaj
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, 175075, Himachal Pradesh, India
| | - Venkata Krishnan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, 175075, Himachal Pradesh, India.
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Yaashikaa PR, Devi MK, Kumar PS. Engineering microbes for enhancing the degradation of environmental pollutants: A detailed review on synthetic biology. ENVIRONMENTAL RESEARCH 2022; 214:113868. [PMID: 35835162 DOI: 10.1016/j.envres.2022.113868] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/28/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Anthropogenic activities resulted in the deposition of huge quantities of contaminants such as heavy metals, dyes, hydrocarbons, etc into an ecosystem. The serious ill effects caused by these pollutants to all living organisms forced in advancement of technology for degrading or removing these pollutants. This degrading activity is mostly depending on microorganisms owing to their ability to survive in harsh adverse conditions. Though native strains possess the capability to degrade these pollutants the development of genetic engineering and molecular biology resulted in engineering approaches that enhanced the efficiency of microbes in degrading pollutants at faster rate. Many bioinformatics tools have been developed for altering/modifying genetic content in microbes to increase their degrading potency. This review provides a detailed note on engineered microbes - their significant importance in degrading environmental contaminants and the approaches utilized for modifying microbes. The genes responsible for degrading the pollutants have been identified and modified fir increasing the potential for quick degradation. The methods for increasing the tolerance in engineered microbes have also been discussed. Thus engineered microbes prove to be effective alternate compared to native strains for degrading pollutants.
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Affiliation(s)
- P R Yaashikaa
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - M Keerthana Devi
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
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Nourzad M, Dehghan A, Niazi Z, Giannakoudakis DA, Afsharnia M, Barczak M, Anastopoulos I, Triantafyllidis K, Shams M. Low power photo-assisted catalytic degradation of azo dyes using 1-D BiOI: Optimization of the key physicochemical features. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Zabihi M, Motavalizadehkakhky A. PbS/ZIF-67 nanocomposite: novel material for photocatalytic degradation of basic yellow 28 and direct blue 199 dyes. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Li Y, Ren X, Yin W. Toxicity of silver nanoparticles on Achromobacter denitrificans: effect of concentration, temperature and coexisting anions. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:2570-2580. [PMID: 36450673 DOI: 10.2166/wst.2022.365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The indoor culture method was carried out to study the toxic effect of silver nanoparticles (AgNPs) on Achromobacter denitrificans. Specifically, the effects of AgNPs concentration, temperature and coexisting anions were analyzed. The results showed that AgNPs exerted significant inhibition on the bacteria, which was closely correlated with its concentration and temperature. Both the ammonia oxidation and generation capacity of Achromobacter denitrificans decreased significantly with an increase in AgNPs concentration. Compared with the inhibition performance at 30 °C, NH4+-N generation rates decreased by 45.31% at 20 °C and 17.58% at 40 °C, respectively, revealing that too low or too high temperature induced to reduce the nitrogen conversion ability of Achromobacter denitrificans. While compared with temperature, the effect of coexisting ions (Cl- and SO42-) was not significant (P > 0.05). Electron microscopy observations found that AgNPs non-specifically bound to the cells (content ranging from 0.04% to 0.10%) and acted on the cell surface structure, causing wrinkles, depressions, and ruptures on the surface of cell membranes, and leakage of substances in the membranes. AgNPs increased the rate of cell apoptosis and decreased the cell body volume mainly with short-term acute effects.
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Affiliation(s)
- Yinghua Li
- School of Resources and Civil Engineering, Northeastern University, 11 Wenhua Road, Heping District, Shenyang 110819, China E-mail:
| | - Xiaoyu Ren
- School of Resources and Civil Engineering, Northeastern University, 11 Wenhua Road, Heping District, Shenyang 110819, China E-mail:
| | - Wenyue Yin
- School of Resources and Civil Engineering, Northeastern University, 11 Wenhua Road, Heping District, Shenyang 110819, China E-mail:
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Bukhari SNUS, Shah AA, Bhatti MA, Tahira A, Channa IA, Shah AK, Chandio AD, Mahdi WA, Alshehri S, Ibhupoto ZH, Liu W. Psyllium-Husk-Assisted Synthesis of ZnO Microstructures with Improved Photocatalytic Properties for the Degradation of Methylene Blue (MB). NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203568. [PMID: 36296761 PMCID: PMC9609820 DOI: 10.3390/nano12203568] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/06/2022] [Accepted: 10/08/2022] [Indexed: 05/02/2023]
Abstract
Wastewater from the textile industry is chronic and hazardous for the human body due to the presence of a variety of organic dyes; therefore, its complete treatment requires efficient, simple, and low cost technology. For this purpose, we grew ZnO microstructures in the presence of psyllium husk, and the role of psyllium husk was to modify the surface of the ZnO microstructures, create defects in the semiconducting crystal structures, and to alter the morphology of the nanostructured material. The growth process involved a hydrothermal method followed by calcination in air. Additionally, the psyllium husk, after thermal combustion, added a certain value of carbon into the ZnO nanomaterial, consequently enhancing the photocatalytic activity towards the degradation of methylene blue. We also investigated the effect of varying doses of photocatalyst on the photocatalytic properties towards the photodegradation of methylene blue in aqueous solution under the illumination of ultraviolet light. The structure and morphology of the prepared ZnO microstructures were explored by scanning electron microscopy (SEM) and powder X-ray diffraction (XRD) techniques. The degradation of methylene blue was monitored under the irradiation of ultraviolet light and in the dark. Also, the degradation of methylene blue was measured with and without photocatalyst. The photodegradation of methylene blue is highly increased using the ZnO sample prepared with psyllium husk. The photodegradation efficiency is found to be approximately 99.35% for this sample. The outperforming functionality of psyllium-husk-assisted ZnO sample is attributed to large surface area of carbon material from the psyllium husk and the synergetic effect between the incorporated carbon and ZnO itself. Based on the performance of the hybrid material, it is safe to say that psyllium husk has high potential for use where surface roughness, morphology alteration, and defects in the crystal structure are vital for the enhancing the functionality of a nanostructured material. The observed performance of ZnO in the presence of psyllium husk provides evidence for the fabrication of a low cost and efficient photocatalyst for the wastewater treatment problems.
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Affiliation(s)
- Syed Nizam Uddin Shah Bukhari
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, School of Material Science, Beijing University of Chemical Technology, Beijing 100029, China
- Department of Basic Science and Humanities, Dawood University of Engineering and Technology, Karachi 74800, Pakistan
| | - Aqeel Ahmed Shah
- Wet Chemistry and Thin Film Laboratory, Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
| | - Muhammad Ali Bhatti
- Department of Environmental Sciences, University of Sindh Jamshoro, Jamshoro 76080, Pakistan
| | - Aneela Tahira
- Dr. M.A Kazi Institute of Chemistry University of Sindh, Jamshoro 76090, Pakistan
| | - Iftikhar Ahmed Channa
- Wet Chemistry and Thin Film Laboratory, Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
| | - Abdul Karim Shah
- Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi 74800, Pakistan
| | - Ali Dad Chandio
- Wet Chemistry and Thin Film Laboratory, Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
| | - Wael A. Mahdi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Zaffar Hussain Ibhupoto
- Dr. M.A Kazi Institute of Chemistry University of Sindh, Jamshoro 76090, Pakistan
- Correspondence: (Z.H.I.); (W.L.)
| | - Wen Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
- Correspondence: (Z.H.I.); (W.L.)
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Babaei M, Tayemeh MB, Jo MS, Yu IJ, Johari SA. Trophic transfer and toxicity of silver nanoparticles along a phytoplankton-zooplankton-fish food chain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 842:156807. [PMID: 35750161 DOI: 10.1016/j.scitotenv.2022.156807] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 06/04/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
This study evaluated the bioconcentration metrics, organ-specific distribution, and trophic consequences of silver nanoparticles along a Dunaliella salina-Artemia salina-Poecilia reticulata food chain. To this end, accumulation, tissue-specific distribution, bioconcentration and biomagnification factors, and trophic toxicity of AgNPs were quantitatively investigated along di- and tri-trophic food chains. Overall, silver accumulation increased markedly in intestine and liver tissues, carcass, and embryos of guppy fish with rising exposure concentrations and reducing trophic levels. Following trophic and waterborne exposure, AgNPs illustrated a regular tendency in following order: intestine > liver > embryos > carcass. BCF displayed values of 826, 131, and ≈ 1000 for microalgae, brine shrimp, and guppy fish, respectively. Moreover, BMF showed values <1.00 for 48-h post-hatched nauplii and guppy fish received AgNPs-exposed phytoplankton, yet >1.00 for the liver and whole body of guppy fish treated with AgNPs-exposed nauplii through algae and water, indicating that AgNPs could be biomagnified from the second to third trophic level, but not from the first to second or third levels. Furthermore, the waterborne and trophic exposure of AgNPs considerably induced oxidative stress and reproductive toxicity. Together, this study demonstrated that AgNPs could be biomagnified across trophic chain and consequently cause trophic toxicity.
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Affiliation(s)
- Morteza Babaei
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Kurdistan, Iran.
| | - Mohammad Behzadi Tayemeh
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Kurdistan, Iran.
| | - Mi Seong Jo
- Aerosol Toxicology Research Center, HCTm, Co., Icheon, Republic of Korea.
| | - Il Je Yu
- HCT, Co. Ltd, Icheon, Republic of Korea.
| | - Seyed Ali Johari
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Kurdistan, Iran.
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Hajiani M, Sayadi MH, Mozafarjalali M, Ahmadpour N. Green Synthesis of Recyclable, Cost-Effective, Chemically Stable, and Environmentally Friendly CuS@Fe3O4 Nanoparticles for the Photocatalytic Degradation of Dye. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02359-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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