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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. [PMID: 38912611 DOI: 10.1021/acsami.4c06785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [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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2
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Burratti L, Sgreccia E, Bertelà F, Galiano F. Metal nanostructures in polymeric matrices for optical detection and removal of heavy metal ions, pesticides and dyes from water. CHEMOSPHERE 2024; 362:142636. [PMID: 38885767 DOI: 10.1016/j.chemosphere.2024.142636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 06/14/2024] [Accepted: 06/15/2024] [Indexed: 06/20/2024]
Abstract
Water pollutants such as heavy metal ions, pesticides, and dyes pose a worldwide issue. Their presence in water resources interferes with the normal growth mechanisms of living beings and causes long or short-term diseases. For this reason, research continuously tends to develop innovative, selective, and efficient processes or technologies to detect and remove pollutants from water. This review provides an up-to-date overview on metal nanoparticles loaded in polymeric matrices, such as hydrogels and membranes, and employed as optical sensors and as removing materials for water pollutants. The synthetic pathways of nanomaterials loading into polymeric matrices have been analyzed, particularly focusing on noble metal nanoparticles, noble metal nanoclusters, and metal oxide nanoparticles. Moreover, the sensing properties of modified matrices towards water pollutants have been discussed in addition to the interaction mechanisms between the sensors and the toxic compounds. The last part of the review has been devoted to illustrating the separation mechanism and removal performance of membranes loaded with nanomaterials in the treatment and purification of water streams from different contaminants (heavy metals, dyes and pesticides).
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Affiliation(s)
- Luca Burratti
- Faculty of Science, Technology and Innovation of the University "Mercatorum", Piazza Mattei 10, 00186, Rome (RM), Italy
| | - Emanuela Sgreccia
- Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133, Rome (RM), Italy
| | - Federica Bertelà
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146, Rome (RM), Italy
| | - Francesco Galiano
- Institute on Membrane Technology, ITM-CNR, Via P. Bucci, Cubo 17/C, 87036, Rende (CS), Italy.
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3
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Silva CS, Tonelli FMP, Delgado VMS, Lourenço VDO, Pinto GDC, Azevedo LS, Lima LARDS, Furtado CA, Ferreira DRC, Tonelli FCP, Parreira AG. Nanoremediation and Antioxidant Potential of Biogenic Silver Nanoparticles Synthesized Using Leucena's Leaves, Stem, and Fruits. Int J Mol Sci 2024; 25:3993. [PMID: 38612800 PMCID: PMC11012344 DOI: 10.3390/ijms25073993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/19/2024] [Accepted: 03/31/2024] [Indexed: 04/14/2024] Open
Abstract
Synthetic dyes are persistent organic environmental pollutants that can cause extensive damage to living beings and to the ecosystem as a whole. Cost-effective, sustainable, and efficient strategies to deal with this type of pollution are necessary as it commonly resists conventional water treatment methods. Silver nanoparticles (AgNPs) synthesized using the aqueous extract from the leaves, stem, and fruits of Leucaena leucocephala (Leucena) were produced and characterized through UV-vis, TEM, EDS, SDL, XPS, XRD, and zeta potential, and they proved to be able to promote adsorption to remediate methylene blue and tartrazine pollution in water. The nanoremediation was performed and did not require direct exposure to sunlight or any special lamp or a specific reduction agent. The AgNPs produced using the extract from the leaves exhibited the best performance in nanoremediation and also presented antioxidant activity that surpassed the one from butylated hydroxytoluene (BHT). Consequently, it is an interesting nanotool to use in dye nanoremediation and/or as an antioxidant nanostructure.
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Affiliation(s)
- Christopher Santos Silva
- Biotechnological Processes Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil; (C.S.S.); (V.M.S.D.); (V.d.O.L.); (G.d.C.P.); (F.C.P.T.)
| | - Fernanda Maria Policarpo Tonelli
- Biotechnological Processes Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil; (C.S.S.); (V.M.S.D.); (V.d.O.L.); (G.d.C.P.); (F.C.P.T.)
| | - Vinicius Marx Silva Delgado
- Biotechnological Processes Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil; (C.S.S.); (V.M.S.D.); (V.d.O.L.); (G.d.C.P.); (F.C.P.T.)
| | - Vitória de Oliveira Lourenço
- Biotechnological Processes Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil; (C.S.S.); (V.M.S.D.); (V.d.O.L.); (G.d.C.P.); (F.C.P.T.)
| | - Geicielly da Costa Pinto
- Biotechnological Processes Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil; (C.S.S.); (V.M.S.D.); (V.d.O.L.); (G.d.C.P.); (F.C.P.T.)
| | - Lucas Santos Azevedo
- Phytochemistry Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil; (L.S.A.); (L.A.R.d.S.L.)
| | | | - Clascídia Aparecida Furtado
- Carbon Nanostructure Chemistry Laboratory, Nuclear Technology Development Center (CDTN), Belo Horizonte 31270-901, MG, Brazil; (C.A.F.); (D.R.C.F.)
| | - Danilo Roberto Carvalho Ferreira
- Carbon Nanostructure Chemistry Laboratory, Nuclear Technology Development Center (CDTN), Belo Horizonte 31270-901, MG, Brazil; (C.A.F.); (D.R.C.F.)
| | - Flávia Cristina Policarpo Tonelli
- Biotechnological Processes Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil; (C.S.S.); (V.M.S.D.); (V.d.O.L.); (G.d.C.P.); (F.C.P.T.)
| | - Adriano Guimarães Parreira
- Protein Chemistry Laboratory, Centro-Oeste Campus, Federal University of São João del-Rei, Divinópolis 35501-296, MG, Brazil;
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4
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Pompapathi K, Anantharaju KS, Karuppasamy P, Subramaniam M, Uma B, Boppanahalli Siddegowda S, Paul Chowdhury A, Murthy HCA. Visible-Light-Driven Mentha spicata L.-Mediated Ag-Doped Bi 2Zr 2O 7 Nanocomposite for Enhanced Degradation of Organic Pollutants, Electrochemical Sensing, and Antibacterial Applications. ACS ENVIRONMENTAL AU 2024; 4:106-125. [PMID: 38525021 PMCID: PMC10958660 DOI: 10.1021/acsenvironau.3c00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 03/26/2024]
Abstract
Novel visible-light-driven Ag (X)-doped Bi2Zr2O7 (BZO) nanocomposites in pudina (P) extract (Mentha spicata L.), X-1, 3, 5, 7, and 9 mol %, were synthesized by the one-pot greener solution combustion method. The as-synthesized nanocomposite materials were characterized by using various spectral [X-ray diffraction (XRD), Fourier transform infrared, UV-visible, UV- diffuse reflectance spectra, X-ray photoelectron spectroscopy], electrochemical (cyclic voltammetry, electrochemical impedance spectroscopy), and analytical (scanning electron microscopy-energy-dispersive X-ray spectroscopy, transmission electron microscopy, Brunauer-Emmett-Teller) techniques. The average particle size of the nanocomposite material was found to be between 14.8 and 39.2 nm by XRD. The well-characterized Ag-doped BZOP nanocomposite materials exhibited enhanced photocatalytic degradation activity toward hazardous dyes such as methylene blue (MB) and rose bengal (RB) under visible light irradiation ranges between 400 and 800 nm due to their low energy band gap. As a result, 7 mol % of Ag-doped BZOP nanocomposite material exhibited excellent photodegradation activity against MB (D.E. = 98.7%) and RB (D.E. = 99.3%) as compared to other Ag-doped BZOP nanocomposite materials and pure BZOP nanocomposite, respectively, due to enhanced semiconducting and optical behaviors, high binding energy, and mechanical and thermal stabilities. The Ag-doped BZOP nanocomposite material-based electrochemical sensor showed good sensing ability toward the determination of lead nitrate and dextrose with the lowest limit of detection (LOD) of 18 μM and 12 μM, respectively. Furthermore, as a result of the initial antibacterial screening study, the Ag-doped BZOP nanocomposite material was found to be more effective against Gram-negative bacteria (Escherichia coli) as compared to Gram-positive (Staphylococcus aureus) bacteria. The scavenger study reveals that radicals such as O2•- and •OH are responsible for MB and RB mineralization. TOC removal percentages were found to be 96.8 and 98.5% for MB and RB dyes, and experimental data reveal that the Ag-doped BZOP enhances the radical (O2•- and •OH) formation and MB and RB degradation under visible-light irradiation.
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Affiliation(s)
- Kurlla Pompapathi
- Dr.
D. Premachandra Sagar Centre for Advanced Materials, Dayananda Sagar College of Engineering, Bangalore 560078, India
- Department
of Material Science, Mangalore University, Mangalore, Karnataka 574199, India
| | - Kurupalya Shivram Anantharaju
- Dr.
D. Premachandra Sagar Centre for Advanced Materials, Dayananda Sagar College of Engineering, Bangalore 560078, India
- Department
of Chemistry, Dayananda Sagar College of
Engineering, Bangalore 560078, India
| | | | - Meena Subramaniam
- Department
of Chemistry, Dayananda Sagar College of
Engineering, Bangalore 560078, India
| | - Bogegowda Uma
- Department
of Chemistry, Dayananda Sagar College of
Engineering, Bangalore 560078, India
| | | | - Arpita Paul Chowdhury
- Department
of Chemistry, Dayananda Sagar College of
Engineering, Bangalore 560078, India
| | - H. C. Ananda Murthy
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 1888, Ethiopia
- Department
of Prosthodontics, Saveetha Dental College & Hospital, Saveetha
Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai, Tamil Nadu 600077, India
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5
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Thakkar AB, Subramanian R, Thakkar VR, Bhatt SV, Chaki S, Vaidya YH, Patel V, Thakor P. Apoptosis induction capability of silver nanoparticles capped with Acorus calamus L. and Dalbergia sissoo Roxb. Ex DC. against lung carcinoma cells. Heliyon 2024; 10:e24400. [PMID: 38304770 PMCID: PMC10831608 DOI: 10.1016/j.heliyon.2024.e24400] [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: 05/25/2023] [Revised: 01/02/2024] [Accepted: 01/08/2024] [Indexed: 02/03/2024] Open
Abstract
Silver nanoparticles (AgNPs) were prepared using a one-step reduction of silver nitrate (AgNO3) with sodium borohydride (NaBH4) in the presence of polyvinylpyrrolidone (PVP) as a capping agent. Plant extracts from D. sissoo (DS) and A. calamus L. (AC) leaves were incorporated during the synthesis process. The crystalline nature of the AgNPs was confirmed through X-ray diffraction (XRD), confirming the face-centered cubic structure, with a lattice constant of 4.08 Å and a crystallite size of 18 nm. Field Emission Gun Transmission Electron Microscopy (FEG-TEM) revealed spherical AgNPs (10-20 nm) with evident PVP adsorption, leading to size changes and agglomeration. UV-Vis spectra showed a surface plasmon resonance (SPR) band at 417 nm for AgNPs and a redshift to 420 nm for PVP-coated AgNPs, indicating successful synthesis. Fourier Transform Infrared Spectroscopy (FTIR) identified functional groups and drug-loaded samples exhibited characteristic peaks, confirming effective drug loading. The anti-cancer potential of synthesized NPs was assessed by MTT assay in human adenocarcinoma lung cancer (A549) and lung normal cells (WI-38) cells. IC50 values for all three NPs (AgPVP NPs, DS@AgPVP NPs, and AC@AgPVP NPs) were 41.60 ± 2.35, 14.25 ± 1.85, and 21.75 ± 0.498 μg/ml on A549 cells, and 420.69 ± 2.87, 408.20 ± 3.41, and 391.80 ± 1.55 μg/ml respectively. Furthermore, the NPs generated Reactive Oxygen Species (ROS) and altered the mitochondrial membrane potential (MMP). Differential staining techniques were used to investigate the apoptosis-inducing properties of the three synthesized NPs. The colony formation assay indicated that nanoparticle therapy prevented cancer cell invasion. Finally, Real-Time PCR (RT-PCR) analysis predicted the expression pattern of many apoptosis-related genes (Caspase 3, 9, and 8).
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Affiliation(s)
- Anjali B. Thakkar
- P. G. Department of Biosciences, Sardar Patel Maidan, Satellite Campus, Sardar Patel University, Bakrol-Vadtal Road, Bakrol, Anand, Gujarat, India
- P. G. Department of Applied and Interdisciplinary Sciences (IICISST), Sardar Patel University, Vallabh Vidyanagar, Gujrat, India
| | - R.B. Subramanian
- P. G. Department of Biosciences, Sardar Patel Maidan, Satellite Campus, Sardar Patel University, Bakrol-Vadtal Road, Bakrol, Anand, Gujarat, India
| | - Vasudev R. Thakkar
- P. G. Department of Biosciences, Sardar Patel Maidan, Satellite Campus, Sardar Patel University, Bakrol-Vadtal Road, Bakrol, Anand, Gujarat, India
| | - Sandip V. Bhatt
- P. G. Department of Applied and Interdisciplinary Sciences (IICISST), Sardar Patel University, Vallabh Vidyanagar, Gujrat, India
| | - Sunil Chaki
- P. G. Department of Applied and Interdisciplinary Sciences (IICISST), Sardar Patel University, Vallabh Vidyanagar, Gujrat, India
- Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Gujrat, India
| | - Yati H. Vaidya
- Department of Microbiology, Shri Alpesh N. Patel Post Graduate Institute of Science and Research, Anand, Gujarat, 388120, India
| | - Vikas Patel
- Sophisticated Instrumentation Centre for Applied Research & Testing (SICART), Vallabh Vidyanagar, Anand, Gujarat, 388120, India
| | - Parth Thakor
- Bapubhai Desaibhai Patel Institute of Paramedical Sciences, Charotar University of Science and Technology, Changa, Gujarat, India
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6
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Paul TK, Jalil MA, Repon MR, Alim MA, Islam T, Rahman ST, Paul A, Rhaman M. Mapping the Progress in Surface Plasmon Resonance Analysis of Phytogenic Silver Nanoparticles with Colorimetric Sensing Applications. Chem Biodivers 2023; 20:e202300510. [PMID: 37471642 DOI: 10.1002/cbdv.202300510] [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: 04/08/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 07/22/2023]
Abstract
Nanotechnology is gaining enormous attention as the most dynamic research area in science and technology. It involves the synthesis and applications of nanomaterials in diverse fields including medical, agriculture, textiles, food technology, cosmetics, aerospace, electronics, etc. Silver nanoparticles (AgNPs) have been extensively used in such applications due to their excellent physicochemical, antibacterial, and biological properties. The use of plant extract as a biological reactor is one of the most promising solutions for the synthesis of AgNPs because this process overcomes the drawbacks of physical and chemical methods. This review article summarizes the plant-mediated synthesis process, the probable reaction mechanism, and the colorimetric sensing applications of AgNPs. Plant-mediated synthesis parameters largely affect the surface plasmon resonance (SPR) characteristic due to the changes in the size and shape of AgNPs. These changes in the size and shape of plant-mediated AgNPs are elaborately discussed here by analyzing the surface plasmon resonance characteristics. Furthermore, this article also highlights the promising applications of plant-mediated AgNPs in sensing applications regarding the detection of mercury, hydrogen peroxide, lead, and glucose. Finally, it describes the future perspective of plant-mediated AgNPs for the development of green chemistry.
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Affiliation(s)
- Tamal Krishna Paul
- Department of Textile Engineering, Faculty of Mechanical Engineering, Khulna, University of Engineering & Technology, Khulna, 9203, Bangladesh
- ZR Research Institute for Advanced Materials, Sherpur, 2100, Bangladesh
| | - Mohammad Abdul Jalil
- Department of Textile Engineering, Faculty of Mechanical Engineering, Khulna, University of Engineering & Technology, Khulna, 9203, Bangladesh
| | - Md Reazuddin Repon
- Laboratory of Plant Physiology, Nature Research Center, Akademijos g. 2, 08412, Vilnius, Lithuania
- Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentu 56, LT-51424, Kaunas, Lithuania
| | - Md Abdul Alim
- Department of Textile Engineering, Faculty of Mechanical Engineering, Khulna, University of Engineering & Technology, Khulna, 9203, Bangladesh
- ZR Research Institute for Advanced Materials, Sherpur, 2100, Bangladesh
| | - Tarekul Islam
- ZR Research Institute for Advanced Materials, Sherpur, 2100, Bangladesh
- Department of Textile Engineering, Mawlana Bhashani Science and Technology University, Tangail, 1902, Bangladesh
| | - Sheikh Tamjidur Rahman
- Department of Textile Engineering, Faculty of Mechanical Engineering, Khulna, University of Engineering & Technology, Khulna, 9203, Bangladesh
| | - Ayon Paul
- Department of Textile Engineering, Faculty of Mechanical Engineering, Khulna, University of Engineering & Technology, Khulna, 9203, Bangladesh
| | - Mukitur Rhaman
- Department of Textile Engineering, Faculty of Mechanical Engineering, Khulna, University of Engineering & Technology, Khulna, 9203, Bangladesh
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7
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da Silva DJ, Gramcianinov GB, Jorge PZ, Malaquias VB, Mori AA, Hirata MH, Lopes SAM, Bueno LA, Champeau M, Carastan DJ. PVC containing silver nanoparticles with antimicrobial properties effective against SARS-CoV-2. Front Chem 2023; 11:1083399. [PMID: 36993814 PMCID: PMC10042293 DOI: 10.3389/fchem.2023.1083399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 02/23/2023] [Indexed: 03/16/2023] Open
Abstract
Poly (vinyl chloride) (PVC) is commonly used to manufacture biomedical devices and hospital components, but it does not present antimicrobial activity enough to prevent biofouling. With the emergence of new microorganisms and viruses, such as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) that was responsible for the global pandemic caused by Coronavirus Disease 2019 (COVID-19), it is evident the importance of the development of self-disinfectant PVC for hospital environments and medical clinics where infected people remain for a long time. In this contribution, PVC nanocomposites with silver nanoparticles (AgNPs) were prepared in the molten state. AgNPs are well-known as antimicrobial agents suitable for designing antimicrobial polymer nanocomposites. Adding 0.1 to 0.5 wt% AgNPs significantly reduced Young’s modulus and ultimate tensile strength of PVC due to the emergence of microstructural defects in the PVC/AgNP nanocomposites, but the impact strength did not change significantly. Furthermore, nanocomposites have a higher yellowness index (YI) and lower optical bandgap values than PVC. The PVC/AgNP nanocomposites present virucidal activity against SARS-CoV-2 (B.1.1.28 strain) within 48 h when the AgNP content is at least 0.3 wt%, suitable for manufacturing furniture and hospital equipment with self-disinfectant capacity to avoid secondary routes of COVID-19 contagion.
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Affiliation(s)
- Daniel J. da Silva
- Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Guilherme B. Gramcianinov
- Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Pamela Z. Jorge
- Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Vanessa B. Malaquias
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Augusto A. Mori
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Mário H. Hirata
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Sergio A. M. Lopes
- BRGoods Indústria e Comércio de Produtos Hospitalares, Indaiatuba, SP, Brazil
| | - Luciano A. Bueno
- Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Mathilde Champeau
- Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, SP, Brazil
- *Correspondence: Mathilde Champeau, ; Danilo J. Carastan,
| | - Danilo J. Carastan
- Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, SP, Brazil
- *Correspondence: Mathilde Champeau, ; Danilo J. Carastan,
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8
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Silver Nanoparticle Synthesis via Photochemical Reduction with Sodium Citrate. Int J Mol Sci 2022; 24:ijms24010255. [PMID: 36613702 PMCID: PMC9820713 DOI: 10.3390/ijms24010255] [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: 12/04/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022] Open
Abstract
The aim of this paper is to provide a simple and efficient photoassisted approach to synthesize silver nanoparticles, and to elucidate the role of the key factors (synthesis parameters, such as the concentration of TSC, irradiation time, and UV intensity) that play a major role in the photochemical synthesis of silver nanoparticles using TSC, both as a reducing and stabilizing agent. Concomitantly, we aim to provide an easy way to evaluate the particle size based on Mie theory. One of the key advantages of this method is that the synthesis can be "activated" whenever or wherever silver nanoparticles are needed, by premixing the reactants and irradiating the final solution with UV radiation. UV irradiance was determined by using Keitz's theory. This argument has been verified by premixing the reagents and deposited them in an enclosed space (away from sunlight) at 25 °C, then checking them for three days. Nothing happened, unless the sample was directly irradiated by UV light. Further, obtained materials were monitored for 390 days and characterized using scanning electron microscopy, UV-VIS, and transmission electron microscopy.
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9
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Sundarapandi M, Praveen R, Shanmugam S, Ramaraj R. Amine-Functionalized Silane-Assisted Preparation of AgNP-Deposited α-Ni(OH) 2 Composite Materials and Their Application in Hg 2+ Ion Sensing. ACS OMEGA 2022; 7:39396-39403. [PMID: 36340171 PMCID: PMC9631721 DOI: 10.1021/acsomega.2c05812] [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: 10/10/2022] [Indexed: 06/16/2023]
Abstract
A facile synthetic methodology for the deposition of different concentrations of Ag nanoparticles (AgNPs) on α-Ni(OH)2 sheets (α-Ni1(OH)2-Ag0.5, α-Ni1(OH)2-Ag1, α-Ni1(OH)2-Ag2, and α-Ni1(OH)2-Ag3) is reported using N-[3-(trimethoxysilyl)propyl]diethylenetriamine (TPDT) silane. The TPDT aminosilane facilitates the formation of α-Ni(OH)2 sheets and reduces the Ag+ precursor to AgNPs, leading to the deposition of AgNPs on α-Ni(OH)2 sheets. UV-vis absorption spectroscopy, transmission microscopy analyses, X-ray photoelectron spectroscopy, X-ray diffraction, and attenuated total reflectance-Fourier transform infrared spectroscopy techniques were used to characterize the prepared α-Ni1(OH)2-Ag0.5-3 composite materials. High-angle annular dark-field scanning transmission electron microscopy-energy-dispersive X-ray spectroscopy mapping images and scanning electron microscopy-energy-dispersive X-ray spectroscopy mapping images were recorded to understand the α-Ni1(OH)2-Ag composite sheet materials. The optical sensing property of α-Ni1(OH)2-Ag0.5-3 composite materials toward toxic Hg2+ ions were investigated using a UV-vis absorption spectroscopy technique. The α-Ni1(OH)2-Ag2 composite material showed selective sensing behavior.
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Affiliation(s)
- Manickam Sundarapandi
- School
of Chemistry, Centre for Photoelectrochemistry, Department of Organic
Chemistry, School of Chemistry, Madurai
Kamaraj University, Madurai625021, India
| | - Raju Praveen
- School
of Chemistry, Centre for Photoelectrochemistry, Department of Organic
Chemistry, School of Chemistry, Madurai
Kamaraj University, Madurai625021, India
| | - Sivakumar Shanmugam
- School
of Chemistry, Centre for Photoelectrochemistry, Department of Organic
Chemistry, School of Chemistry, Madurai
Kamaraj University, Madurai625021, India
| | - Ramasamy Ramaraj
- School
of Chemistry, Centre for Photoelectrochemistry, Department of Organic
Chemistry, School of Chemistry, Madurai
Kamaraj University, Madurai625021, India
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10
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SPR-based assay kit for rapid determination of Pb2+. Anal Chim Acta 2022; 1220:340030. [DOI: 10.1016/j.aca.2022.340030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 11/17/2022]
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11
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Rashed MA, Ahmed J, Faisal M, Alsareii S, Jalalah M, Harraz FA. Highly sensitive and selective thiourea electrochemical sensor based on novel silver nanoparticles/chitosan nanocomposite. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128879] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Faisal M, Rashed MA, Ahmed J, Alsaiari M, Jalalah M, Alsareii SA, Harraz FA. Ag nanoparticle-decorated chitosan/SrSnO 3 nanocomposite for ultrafast elimination of antibiotic linezolid and methylene blue. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:52900-52914. [PMID: 35275371 DOI: 10.1007/s11356-021-17735-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/20/2021] [Indexed: 06/14/2023]
Abstract
Effective design of ultrafast new-generation photocatalysts is a challenging task that requires highly dedicated efforts. This research focused on the development and design of ultrafast smart ternary photocatalysts containing SrSnO3 nanostructures in conjugation with chitosan (CTSN) and silver (Ag) nanoparticles by a very simple and straightforward methodology. Modern analytical tools such as FESEM, TEM, XRD, XPS, FTIR, and UV-Vis spectroscopy were employed to characterize the synthesized nanostructures. XRD and XPS analysis confirmed the successful creation of ternary organization among the Ag, CTSN, and SrSnO3. The TEM images clearly confirmed that CTSN possessed overlapping micron-sized sheets with a layered morphology, whereas the undoped SrSnO3 particles exhibited spherical and elongated shapes and particle sizes ranging from 20 to 80 nm. These particles were produced in high density with homogeneously distributed Ag nanoparticles (4-15 nm). The bandgap energy (Eg) for bare SrSnO3, CTSN/SrSnO3, and Ag@CTSN/SrSnO3 nanocomposites was found to be 4.0, 3.94, and 3.7 eV, respectively. The photocatalytic efficiencies of all newly created photocatalysts were evaluated by considering an antibiotic linezolid drug and methylene blue (MB) dye molecule as target analytes. Among all investigated samples, the Ag@CTSN/SrSnO3 photocatalyst was found to be highly superior, with ultrafast removal of the linezolid drug at 96.02% within 25 min and almost total removal of the MB dye in just 12 min under UV light irradiation. The Ag@CTSN/SrSnO3 photocatalyst exhibited removal rate that was 3.36 times faster than that of bare SrSnO3. The present report delivers a highly promising, extremely efficient, and very simple, straightforward treatment methodology for the effective destruction of lethal and notorious pollutants, enabling the appropriate management of current environmental concerns.
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Affiliation(s)
- M Faisal
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts, Najran University, Najran, Saudi Arabia
| | - Md Abu Rashed
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science, Mawlana Bhashani Science and Technology University, Tangail, Santosh, 1902, Bangladesh
| | - Jahir Ahmed
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
| | - Mabkhoot Alsaiari
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Najran, Saudi Arabia
| | - Mohammed Jalalah
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
- Department of Electrical Engineering, Faculty of Engineering, Najran University, Najran, Saudi Arabia
| | - Saeed A Alsareii
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
- Department of Surgery, College of Medicine, Najran University, Najran, Saudi Arabia
| | - Farid A Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia.
- Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. Box: 87, Cairo, Helwan, 11421, Egypt.
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13
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Vijayan VM, Walker M, Pillai RR, Moreno GH, Vohra YK, Morris JJ, Thomas V. Plasma Electroless Reduction: A Green Process for Designing Metallic Nanostructure Interfaces onto Polymeric Surfaces and 3D Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2022; 14:25065-25079. [PMID: 35638266 DOI: 10.1021/acsami.2c01195] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The design of metal nanoparticle-modified polymer surfaces in a green and scalable way is both desirable and highly challenging. Herein, a new green low-temperature plasma-based in situ surface reduction strategy termed plasma electroless reduction (PER) is reported for achieving in situ metallic nanostructuring on polymer surfaces. Proof of concept for this new method was first demonstrated on hydrophilic cellulose papers. Cellulose papers were dip-coated with different metal ion (Ag+ and Au3+) solutions and then subjected to hydrogen plasma treatment for this PER process. Transmission electron microscopy (TEM) analysis has revealed that this PER process caused anisotropic growth of either gold or silver nanoparticles, resulting in the time-dependent formation of both distinct spherical nanoparticles (∼20 nm) and anisotropic 2D nanosheets. Furthermore, we have demonstrated the adaptability of this process by applying it to hydrophobic fibrous and 3D printed polymeric materials such as surgical face masks and 3D printed polylactic acid scaffolds. The PER process on these hydrophobic polymer surfaces was accomplished via a sequential combination of air plasma and hydrogen plasma treatment. The metallic nanostructuring caused by the PER process on these hydrophobic surfaces was systematically studied using different surface imaging techniques including 3D confocal laser surface scanning microscopy and scanning electron microscopy. We have also systematically optimized the PER process on the surface of 3D scaffolds via varying the concentration of the silver ion precursor and by different postprocessing methods such as sonication and medium soaking. These optimization processes were found to be very important in generating uniform metallic nanoparticle-modified 3D printed scaffolds while simultaneously improving cytocompatibility. Through joint disk diffusion and inhibitory concentration testing, the antibacterial efficacy of silver coatings on face masks and 3D scaffolds was established. Altogether, these results clearly suggest the excellent futuristic potential of this new PER method for designing metallic nanostructured interfaces for different biomedical applications.
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Affiliation(s)
- Vineeth M Vijayan
- Department of Materials Science and Engineering, Laboratory for Polymers & Healthcare Materials/Devices, The University of Alabama at Birmingham (UAB), 1150 10th Ave S, Birmingham, Alabama 35233, United States
- Center for Nanoscale Materials and Bio-integration (CNMB), The University of Alabama at Birmingham (UAB), 1720 2nd Ave S, Birmingham, Alabama 35294, United States
| | - Melissa Walker
- Department of Biology, The University of Alabama at Birmingham (UAB), Campbell Hall, 1300 University Blvd, Birmingham, Alabama 35233, United States
| | - Renjith R Pillai
- Department of Materials Science and Engineering, Laboratory for Polymers & Healthcare Materials/Devices, The University of Alabama at Birmingham (UAB), 1150 10th Ave S, Birmingham, Alabama 35233, United States
| | - Gerardo Hernandez Moreno
- Department of Materials Science and Engineering, Laboratory for Polymers & Healthcare Materials/Devices, The University of Alabama at Birmingham (UAB), 1150 10th Ave S, Birmingham, Alabama 35233, United States
| | - Yogesh K Vohra
- Center for Nanoscale Materials and Bio-integration (CNMB), The University of Alabama at Birmingham (UAB), 1720 2nd Ave S, Birmingham, Alabama 35294, United States
| | - J Jeffrey Morris
- Department of Biology, The University of Alabama at Birmingham (UAB), Campbell Hall, 1300 University Blvd, Birmingham, Alabama 35233, United States
| | - Vinoy Thomas
- Department of Materials Science and Engineering, Laboratory for Polymers & Healthcare Materials/Devices, The University of Alabama at Birmingham (UAB), 1150 10th Ave S, Birmingham, Alabama 35233, United States
- Center for Nanoscale Materials and Bio-integration (CNMB), The University of Alabama at Birmingham (UAB), 1720 2nd Ave S, Birmingham, Alabama 35294, United States
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14
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Bonetti L, Fiorati A, D’Agostino A, Pelacani CM, Chiesa R, Farè S, De Nardo L. Smart Methylcellulose Hydrogels for pH-Triggered Delivery of Silver Nanoparticles. Gels 2022; 8:gels8050298. [PMID: 35621596 PMCID: PMC9140787 DOI: 10.3390/gels8050298] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 02/01/2023] Open
Abstract
Infection is a severe complication in chronic wounds, often leading to morbidity or mortality. Current treatments rely on dressings, which frequently contain silver as a broad-spectrum antibacterial agent, although improper dosing can result in severe side effects. This work proposes a novel methylcellulose (MC)-based hydrogel designed for the topical release of silver nanoparticles (AgNPs) via an intelligent mechanism activated by the pH variations in infected wounds. A preliminary optimization of the physicochemical and rheological properties of MC hydrogels allowed defining the optimal processing conditions in terms of crosslinker (citric acid) concentration, crosslinking time, and temperature. MC/AgNPs nanocomposite hydrogels were obtained via an in situ synthesis process, exploiting MC both as a capping and reducing agent. AgNPs with a 12.2 ± 2.8 nm diameter were obtained. MC hydrogels showed a dependence of the swelling and degradation behavior on both pH and temperature and a noteworthy pH-triggered release of AgNPs (release ~10 times higher at pH 12 than pH 4). 1H-NMR analysis revealed the role of alkaline hydrolysis of the ester bonds (i.e., crosslinks) in governing the pH-responsive behavior. Overall, MC/AgNPs hydrogels represent an innovative platform for the pH-triggered release of AgNPs in an alkaline milieu.
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Affiliation(s)
- Lorenzo Bonetti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- Correspondence:
| | - Andrea Fiorati
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Agnese D’Agostino
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Carlo Maria Pelacani
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
| | - Roberto Chiesa
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Silvia Farè
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Luigi De Nardo
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
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15
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Kappen J, Bharathi S, John SA. Probing the Interaction of Heavy and Transition Metal Ions with Silver Nanoparticles Decorated on Graphene Quantum Dots by Spectroscopic and Microscopic Methods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4442-4451. [PMID: 35352934 DOI: 10.1021/acs.langmuir.2c00273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report a comprehensive study of the interaction of transition and heavy metal ions with graphene quantum dots-capped silver nanoparticles (AgGQDs) using different spectroscopic and microscopic techniques. High-resolution transmission electron microscopy studies show that the interaction of metal ions with AgGQDs leads to the formation of metal oxides, the formation of zerovalent metals, and the aggregation of Ag nanoparticles (AgNPs). The metal ions may interact with AgGQDs through selective coordination with -OH and -COOH functionalities, adsorption on the graphene moiety, and directly to AgNPs. For instance, the interaction of Cd2+ with AgGQDs altered the spherical shape of AgNPs into a chain-like structure. On the contrary, the formation of PbO is observed after the addition of Pb2+ to AgGQDs. Interestingly, the interaction of AgGQDs with Hg2+ results in the complete dissolution of Ag0 from the surface of GQDs and subsequent deposition of Hg0 on the graphene moiety of GQDs. Unlike transition metal ions, Cd2+, Pb2+, and Hg2+ can adsorb strongly on the graphene surface at the bridge, hollow, and top sites, respectively. This special interaction of heavy metal ions with the graphene surface would decide the mechanistic pathway in which the reaction proceeds. The transition metal ions Cu2+, Zn2+, Co3+, Mn2+, Ni2+, and Fe3+ induced the aggregation of AgNPs.
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Affiliation(s)
- Jincymol Kappen
- Centre for Nanoscience and Nanotechnology, Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University Gandhigram, Dindigul 624 302, Tamil Nadu, India
| | - Sinduja Bharathi
- Centre for Nanoscience and Nanotechnology, Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University Gandhigram, Dindigul 624 302, Tamil Nadu, India
| | - S Abraham John
- Centre for Nanoscience and Nanotechnology, Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University Gandhigram, Dindigul 624 302, Tamil Nadu, India
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16
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Ag3O4 embedded fibre reinforced polyaniline nanocomposite as an electrode material for supercapacitors. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03971-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Samanta A, Pal SK, Jana S. Exploring flowery MnO 2/Ag nanocomposite as an efficient solar-light-driven photocatalyst. NEW J CHEM 2022. [DOI: 10.1039/d1nj04880e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient approach was developed to boost the solar light driven photocatalytic efficacy of pristine flowery MnO2 NCs through the immobilization of Ag NPs, which in turn produces MnO2/Ag NCs.
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Affiliation(s)
- Arnab Samanta
- Department of Chemical, Biological & Macro-Molecular Sciences, S. N. Bose National Centre for Basic Sciences, Block - JD, Sector-III, Salt Lake, Kolkata-700106, India
| | - Samir Kumar Pal
- Department of Chemical, Biological & Macro-Molecular Sciences, S. N. Bose National Centre for Basic Sciences, Block - JD, Sector-III, Salt Lake, Kolkata-700106, India
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, Block - JD, Sector-III, Salt Lake, Kolkata-700106, India
| | - Subhra Jana
- Department of Chemical, Biological & Macro-Molecular Sciences, S. N. Bose National Centre for Basic Sciences, Block - JD, Sector-III, Salt Lake, Kolkata-700106, India
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, Block - JD, Sector-III, Salt Lake, Kolkata-700106, India
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18
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Liu S, Jiang X, Waterhouse GI, Zhang ZM, Yu LM. Construction of Z-scheme Titanium-MOF/plasmonic silver nanoparticle/NiFe layered double hydroxide photocatalysts with enhanced dye and antibiotic degradation activity under visible light. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119525] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Gold and Silver Nanoparticle-Based Colorimetric Sensors: New Trends and Applications. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9110305] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Gold and Silver nanoparticles (AuNPs and AgNPs) are perfect platforms for developing sensing colorimetric devices thanks to their high surface to volume ratio and distinctive optical properties, particularly sensitive to changes in the surrounding environment. These characteristics ensure high sensitivity in colorimetric devices. Au and Ag nanoparticles can be capped with suitable molecules that can act as specific analyte receptors, so highly selective sensors can be obtained. This review aims to highlight the principal strategies developed during the last decade concerning the preparation of Au and Ag nanoparticle-based colorimetric sensors, with particular attention to environmental and health monitoring applications.
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20
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Wang H, Zhou T, Mao Q, Wang S, Wang Z, Xu Y, Li X, Deng K, Wang L. Porous PdAg alloy nanostructures with a concave surface for efficient electrocatalytic methanol oxidation. NANOTECHNOLOGY 2021; 32:355402. [PMID: 34030138 DOI: 10.1088/1361-6528/ac0471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
Tuning the composition and surface structure of the metal nanocrystals offered viable avenues for enhancing catalytic performances. Herein, we report a facile one-pot strategy for the formation of PdAg porous alloy nanostructures (PANs) with a concave surface. Due to their highly open nanostructures and tunable d-band center features, PdAg PANs exhibit superior electrocatalytic activity and long-term durability than Pd nanoparticles (NPs) and Pd/C for methanol oxidation reaction (MOR) in alkaline media. Our results provide a feasible and efficient approach for the controlled synthesis of high-performance Pd-based nanomaterials for alkaline MOR.
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Affiliation(s)
- Hongjing Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Tongqing Zhou
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Qiqi Mao
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Shengqi Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Ziqiang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - You Xu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Xiaonian Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Kai Deng
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Liang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
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21
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Gao F, Kong W, He G, Guo Y, Liu H, Zhang S, Yang B. SERS-active vertically aligned silver/tungsten oxide nanoflakes for ultrasensitive and reliable detection of thiram. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Bharath G, Hai A, Rambabu K, Ahmed F, Haidyrah AS, Ahmad N, Hasan SW, Banat F. Hybrid capacitive deionization of NaCl and toxic heavy metal ions using faradic electrodes of silver nanospheres decorated pomegranate peel-derived activated carbon. ENVIRONMENTAL RESEARCH 2021; 197:111110. [PMID: 33864793 DOI: 10.1016/j.envres.2021.111110] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/21/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
Capacitive deionization (CDI) is an evolving technology for eradicating salt and toxic heavy metal ions from brackish wastewater. However, traditional CDI electrodes have lower salt adsorption capacity and inadequate adsorption of selective metal ions for long-term operations. Herein, Ag nanospheres incorporated pomegranate peel-derived activated carbon (Ag/P-AC) was prepared and implied to the CDI process for removing NaCl, toxic mono-, di-, and trivalent metal ions. Morphological analysis revealed that the 80-100 nm-sized Ag nanospheres were uniformly decorated on the surfaces of P-AC nanosheets. The Ag/P-AC has a higher specific surface area (640 m2 g-1), superior specific capacitance (180 F g-1 at 50 mV s-1) and a lower charge transfer resistance (0.5 Ω cm2). CDI device was fabricated by Ag/P-AC as an anode, which adsorbed anions and P-AC as cathode for adsorption of positively charged ions at 1.2 V in an initial salt concentration of 1000 mg L-1. An asymmetric Ag/P-AC//P-AC exhibited a maximum NaCl adsorption capacity of 36 mg g-1 than symmetric P-AC//P-AC electrodes (22.7 mg g-1). Furthermore, Pb(II), Cd(II), F-, and As(III) ions were successfully removed from simulated wastewater by using Ag/P-AC//P-AC based CDI system. These asymmetric CDI-electrodes have an excellent prospect for the removal of salt and toxic contaminants in industrial wastewater.
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Affiliation(s)
- G Bharath
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Abdul Hai
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - K Rambabu
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Faheem Ahmed
- Department of Physics, College of Science, King Faisal University, P.O Box 400, Hofuf, Al-Ahsa, 31982, Saudi Arabia
| | - Ahmed S Haidyrah
- Nuclear and Radiological Control Unit, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Shadi W Hasan
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
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Kwon D, Kim J. Ag metal organic frameworks nanocomposite modified electrode for simultaneous electrochemical detection of copper (II) and lead (II). J APPL ELECTROCHEM 2021. [DOI: 10.1007/s10800-021-01569-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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Mariychuk R, Smolková R, Bartošová V, Eliašová A, Grishchenko LM, Diyuk VE, Lisnyak VV. The regularities of the Mentha piperita L. extract mediated synthesis of gold nanoparticles with a response in the infrared range. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01740-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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25
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Bacterium Mediated Facile and Green Method for Optimized Biosynthesis of Gold Nanoparticles for Simple and Visual Detection of Two Metal Ions. J CLUST SCI 2021. [DOI: 10.1007/s10876-020-01793-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Montes-García V, Squillaci MA, Diez-Castellnou M, Ong QK, Stellacci F, Samorì P. Chemical sensing with Au and Ag nanoparticles. Chem Soc Rev 2021; 50:1269-1304. [PMID: 33290474 DOI: 10.1039/d0cs01112f] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Noble metal nanoparticles (NPs) are ideal scaffolds for the fabrication of sensing devices because of their high surface-to-volume ratio combined with their unique optical and electrical properties which are extremely sensitive to changes in the environment. Such characteristics guarantee high sensitivity in sensing processes. Metal NPs can be decorated with ad hoc molecular building blocks which can act as receptors of specific analytes. By pursuing this strategy, and by taking full advantage of the specificity of supramolecular recognition events, highly selective sensing devices can be fabricated. Besides, noble metal NPs can also be a pivotal element for the fabrication of chemical nose/tongue sensors to target complex mixtures of analytes. This review highlights the most enlightening strategies developed during the last decade, towards the fabrication of chemical sensors with either optical or electrical readout combining high sensitivity and selectivity, along with fast response and full reversibility, with special attention to approaches that enable efficient environmental and health monitoring.
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Affiliation(s)
- Verónica Montes-García
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France.
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Naghdi T, Faham S, Mahmoudi T, Pourreza N, Ghavami R, Golmohammadi H. Phytochemicals toward Green (Bio)sensing. ACS Sens 2020; 5:3770-3805. [PMID: 33301670 DOI: 10.1021/acssensors.0c02101] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Because of numerous inherent and unique characteristics of phytochemicals as bioactive compounds derived from plants, they have been widely used as one of the most interesting nature-based compounds in a myriad of fields. Moreover, a wide variety of phytochemicals offer a plethora of fascinating optical and electrochemical features that pave the way toward their development as optical and electrochemical (bio)sensors for clinical/health diagnostics, environmental monitoring, food quality control, and bioimaging. In the current review, we highlight how phytochemicals have been tailored and used for a wide variety of optical and electrochemical (bio)sensing and bioimaging applications, after classifying and introducing them according to their chemical structures. Finally, the current challenges and future directions/perspective on the optical and electrochemical (bio)sensing applications of phytochemicals are discussed with the goal of further expanding their potential applications in (bio)sensing technology. Regarding the advantageous features of phytochemicals as highly promising and potential biomaterials, we envisage that many of the existing chemical-based (bio)sensors will be replaced by phytochemical-based ones in the near future.
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Affiliation(s)
- Tina Naghdi
- Nanosensor Bioplatforms Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran 14335-186, Iran
| | - Shadab Faham
- Chemometrics Laboratory, Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Tohid Mahmoudi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
| | - Nahid Pourreza
- Chemistry Department, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz 6153753843, Iran
| | - Raouf Ghavami
- Chemometrics Laboratory, Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Hamed Golmohammadi
- Nanosensor Bioplatforms Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran 14335-186, Iran
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Kadu P, Pandey S, Neekhra S, Kumar R, Gadhe L, Srivastava R, Sastry M, Maji SK. Machine-Free Polymerase Chain Reaction with Triangular Gold and Silver Nanoparticles. J Phys Chem Lett 2020; 11:10489-10496. [PMID: 33275439 DOI: 10.1021/acs.jpclett.0c02708] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Photothermal effects of metal nanoparticles (NPs) are used for various biotechnological applications. Although NPs have been used in a polymerase chain reaction (PCR), the effects of shape on the photothermal properties and its efficiency on PCR are less explored. The present study reports the synthesis of triangular gold and silver NPs, which can attain temperatures up to ∼90 °C upon irradiation with 808 nm laser. This photothermal property of synthesized nanoparticles was evaluated using various concentrations, irradiation time, and power to create a temperature profile required for variable-temperature PCR. This study reports a cost-effective, machine-free PCR using both gold and silver triangular NPs, with efficiency similar to that of a commercial PCR machine. Interestingly, addition of triangular NPs increases PCR efficiency in commercial PCR reactions. The higher PCR efficiencies are due to the direct binding and unfolding of double-stranded DNA as suggested by circular dichroism and UV spectroscopy. These findings suggest that triangular NPs can be used to develop cost-effective, robust machine-free PCR modules and can be used in various other photothermal applications.
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Affiliation(s)
- Pradeep Kadu
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Satyaprakash Pandey
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Suditi Neekhra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rakesh Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Laxmikant Gadhe
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Murali Sastry
- IITB-Monash Research Academy, Academy Building, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
- Department of Materials Engineering and Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Samir K Maji
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Fan P, He S, Cheng J, Hu C, Liu C, Yang S, Liu J. l-Cysteine modified silver nanoparticles-based colorimetric sensing for the sensitive determination of Hg 2+ in aqueous solutions. LUMINESCENCE 2020; 36:698-704. [PMID: 33270343 DOI: 10.1002/bio.3990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/22/2020] [Accepted: 11/29/2020] [Indexed: 12/28/2022]
Abstract
A simple and sensitive colorimetric sensing method was constructed for detection of Hg2+ in aqueous solutions and based on silver nanoparticles functionalized with l-cysteine (l-Cys-Ag NPs). In this method, adenosine triphosphate (ATP) induced aggregation of l-Cys-Ag NPs. Simultaneously, the solution colour changed from bright yellow to brown. In the presence of Hg2+ , Hg2+ chelated ATP to form a complex and reduce the degree of aggregation of l-Cys-Ag NPs and was accompanied by a colour change from brown to bright yellow. The changing values of absorbance at 390 nm were linearly correlated with concentration of Hg2+ over the 4.00 × 10-8 to 1.04 × 10-6 mol·L-1 range, with a detection limit of 8 nM. This method was used successfully for detection of Hg2+ in real water samples and performed good selectivity and sensitivity. The recovery range was 91.5-109.1%, indicating that the method has vast application potential for determination of Hg2+ in the environment.
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Affiliation(s)
- Pengfei Fan
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Shunzhen He
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Jinnan Center for Disease Control And Prevention, Tianjin, China
| | - Jianlin Cheng
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Congcong Hu
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Can Liu
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Shengyuan Yang
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Jinquan Liu
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
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30
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Chand K, Cao D, Fouad DE, Shah AH, Lakhan MN, Dayo AQ, Sagar HJ, Zhu K, Mohamed AMA. Photocatalytic and antimicrobial activity of biosynthesized silver and titanium dioxide nanoparticles: A comparative study. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113821] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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31
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Nehra S, Dhillon A, Kumar D. Freeze-dried synthesized bifunctional biopolymer nanocomposite for efficient fluoride removal and antibacterial activity. J Environ Sci (China) 2020; 94:52-63. [PMID: 32563487 DOI: 10.1016/j.jes.2020.03.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 03/09/2020] [Accepted: 03/12/2020] [Indexed: 06/11/2023]
Abstract
Local fluoride contamination and bacterial infections in potable water have dangerous effects on the human body and are today a global concern. In this study, we have synthesized a pH-responsive bifunctional biopolymer nanocomposite (HAZ) of humic acid with incorporating aluminum zirconium bimetallic oxide by deep freeze-drying method. Fast nucleation and interconnection of nanoparticles form a highly porous network because of sublimation of frozen HAZ. This duo nanocomposite has efficiently worked for fluoride removal and showed potent antibacterial activity against the Escherichia coli Gram-negative and Staphylococcus aureus Gram-positive bacteria. The X-ray photoelectron spectroscopy (XPS) analysis demonstrates that the hydroxyl groups act as a pivot in the ion exchange process of adsorption, each element of bimetallic oxide primarily takes part in the adsorption mechanism. The maximum adsorption capacity of the adsorbent was 180.62 mg/g at pH seven. Thermodynamic parameters like Gibbs free energy change (ΔG0), entropy (ΔS0), and enthalpy (ΔH0) indicate that the process was endothermic, feasible, and taken place by a chemisorption mechanism. This is the first novel freeze-dried bifunctional biopolymer nanocomposite composed of humic acid natural polymer incorporated with Al-Zr metal oxide, and it exhibited three times higher adsorption efficacy with excellent antibacterial action at a concentration of 5 µg/mL of the nanocomposite.
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Affiliation(s)
- Sapna Nehra
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan 304022, India
| | - Ankita Dhillon
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan 304022, India
| | - Dinesh Kumar
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan 304022, India; School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
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Sultana S, Alzahrani N, Alzahrani R, Alshamrani W, Aloufi W, Ali A, Najib S, Siddiqui NA. Stability issues and approaches to stabilised nanoparticles based drug delivery system. J Drug Target 2020; 28:468-486. [PMID: 31984810 DOI: 10.1080/1061186x.2020.1722137] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nanoparticles form the fundamental building blocks for many exciting applications in various scientific disciplines due to its unique features such as large surface to mass ratio, targeting potential, ability to adsorbed and carry other compound which makes them suitable for biomedical applications. However, the problem of the large-scale synthesis of nanoparticles remains challenging due to physical instability associated with nanoparticles which lead to generation of aggregates particles with high polydispersity index (PDI) indicating low particle homogeneity and eventually loss of their special nanoscale properties. The stabilisation concept can be generated by repulsive electrostatic force, which nanoparticles experience, when they are surrounded by a double layer of electric charges. Selection of proper stabiliser will govern the stability of NPs and ultimately development of optimised drug delivery system. This review summarises mechanism of physical instability issues likely to be encountered during the development of nanoformulations. It also discusses potential stabilising agents used so far and their mechanism in achieving stable nanosystems.
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Affiliation(s)
| | | | | | | | - Waad Aloufi
- Pharmaceutics, Taif University, Taif, Saudi Arabia
| | - Amena Ali
- Pharmaceutical Chemistry, Taif University, Taif, Saudi Arabia
| | - Shehla Najib
- Pharmacognosy and Phytochemistry, King Khalid University, Abha, Saudi Arabia
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Gumus I, Karataş Y, Gülcan M. Silver nanoparticles stabilized by a metal–organic framework (MIL-101(Cr)) as an efficient catalyst for imine production from the dehydrogenative coupling of alcohols and amines. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00974a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we present silver nanoparticles supported on a metal–organic framework (Ag@MIL-101) as a catalyst for the one-pot tandem synthesis of imines from alcohols and amines.
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Affiliation(s)
- Ilkay Gumus
- Advanced Technology Applied and Research Center
- Mersin University
- Mersin
- Turkey
- Department of Basic Sciences
| | - Yaşar Karataş
- Department of Chemistry
- Van Yüzüncü Yıl University
- Van
- Turkey
| | - Mehmet Gülcan
- Department of Chemistry
- Van Yüzüncü Yıl University
- Van
- Turkey
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34
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Majoumouo MS, Sibuyi NRS, Tincho MB, Mbekou M, Boyom FF, Meyer M. Enhanced Anti-Bacterial Activity Of Biogenic Silver Nanoparticles Synthesized From Terminalia mantaly Extracts. Int J Nanomedicine 2019; 14:9031-9046. [PMID: 31819417 PMCID: PMC6875292 DOI: 10.2147/ijn.s223447] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 09/06/2019] [Indexed: 01/06/2023] Open
Abstract
Background The global increase in outbreaks and mortality rates associated with multi-drug-resistant (MDR) bacteria is a major health concern and calls for alternative treatments. Natural-derived products have shown potential in combating the most dreadful diseases, and therefore serve as an effective source of bioactive compounds that can be used as anti-bacterial agents. These compounds are able to reduce metal ions and cap nanoparticles to form biogenic nanoparticles (NPs) with remarkable anti-bacterial activities. This study explores the use of Terminalia mantaly (TM) extracts for the synthesis of biogenic silver NPs (TM-AgNPs) and the evaluation of their antibacterial activity. Methods TM-AgNPs were synthetized by the reduction of AgNO3 with aqueous and methanolic TM extracts. UV-visible (UV-vis) spectrophotometry, Dynamic Light Scattering (DLS), Transmission Electron Microscopy, and Fourier Transform Infrared (FTIR) analyses were used to characterise the TM-AgNPs. Anti-bacterial activity of the TM extracts and TM-AgNPs was evaluated against eight bacterial strains using the broth microdilution assay. The growth inhibitory kinetics of the bio-active TM-AgNPs was assessed on susceptible strains for a period of 8 hrs. Results Polycrystalline biogenic AgNPs with anisotropic shapes and diameter range of 11 to 83 nm were synthesized from the TM extracts. The biogenic TM-AgNPs showed significant antibacterial activity compared to their respective extracts. The MIC values for TM-AgNPs and extracts were 3 and 125 µg/mL, respectively. Biogenic AgNPs synthesised from the aqueous TM leaf extract at 25°C (aTML-AgNPs-25°C) showed significant antibacterial activity against all the bacterial strains tested in this study. Their bactericidal effect was particularly higher against the Streptococcus pneumoniae and Haemophilus influenzae. Conclusion This study demonstrated the ability of TM extracts to synthesize biogenic AgNPs. The NPs synthesized from the aqueous TM extracts demonstrated higher antibacterial activity against the tested microorganisms compared to the methanolic extracts. Studies are underway to identify the phytochemicals involved in NP synthesis and their mechanism of action.
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Affiliation(s)
- Michele Stella Majoumouo
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé 1, Yaoundé, Cameroon.,Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Nicole Remaliah Samantha Sibuyi
- Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Marius Belmondo Tincho
- Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Michele Mbekou
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé 1, Yaoundé, Cameroon
| | - Fabrice Fekam Boyom
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé 1, Yaoundé, Cameroon
| | - Mervin Meyer
- Department of Science and Technology (DST)/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
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Joshi R, Sharma R, Bhunia R, Prakash A, Kuila A. Lipase production from mutagenic strain of Fusarium Incarnatum KU377454 and its immobilization using Au@Ag core shells nanoparticles for application in waste cooking oil degradation. 3 Biotech 2019; 9:411. [PMID: 31692675 DOI: 10.1007/s13205-019-1949-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/10/2019] [Indexed: 11/24/2022] Open
Abstract
In the present study, lipase production from mutated strain of Fusarium incarnatum KU377454 was optimized through central composite design (CCD) based response surface methodology (RSM). The maximum lipase production (4.01 IU/mL) was obtained within 4 days of incubation using 0.1% CaCl2 concentration and 8% wheat bran concentration. Further, salting out technique was applied for partial purification of lipase. The partially purified lipase was immobilized using Au@Ag bimetallic nanoshell. The characterization of immobilized lipase was carried out by transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), Fourier transformed infrared (FTIR), energy dispersive X-ray (EDX), X-ray diffraction (XRD) and thermo gravimetric analysis (TGA). The immobilized lipase could retain its 95% of activity after 15 days of storage at 4 °C. Subsequently, Au@Ag immobilized lipase was used for the degradation of waste cooking oil (WCO), which showed higher WCO degradation (85%) compared to the free lipase mediated waste cooking oil degradation (71%). The immobilized lipase could be reused for five times without any loss of its activity.
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Affiliation(s)
- Ritika Joshi
- 1Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan, 304022 India
| | - Rekha Sharma
- 2Department of Chemistry, Banasthali Vidyapith, Rajasthan, 304022 India
| | - Rupam Bhunia
- 3Plant Tissue Culture and Genetic Engineering, National Agri-Food Biotechnology Institute (NABI), Sector-81 (Knowledge City), PO Manauli, S.A.S. Nagar, Mohali, 140306 Punjab India
| | - Anand Prakash
- 1Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan, 304022 India
| | - Arindam Kuila
- 1Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan, 304022 India
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Painuli R, Raghav S, Kumar D. Selective Interactions of Al(III) with Plasmonic AgNPs by Colorimetric, Kinetic, and Thermodynamic Studies. ACS OMEGA 2019; 4:3635-3645. [PMID: 31459576 PMCID: PMC6648440 DOI: 10.1021/acsomega.8b01945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/20/2018] [Indexed: 06/10/2023]
Abstract
In this paper, we report a simple, novel, and highly selective plasmonic nanoparticles (NPs)-based colorimetric nanoprobe for the detection of Al(III) ions in aqueous solution. 5-Hydroxy indole-2-carboxylic acid (5H-I2CA) was utilized as a reducing as well as capping agent for the preparation of silver nanoparticles (5H-I2CA@AgNPs). The interaction between Al(III) and AgNPs was determined by UV-vis absorption spectroscopy, high-resolution transmission electron microscopy, Fourier transform infrared, X-ray photoelectron spectroscopy, and dynamic light scattering techniques. The absorption values (A 452-410) of the 5H-I2CA@AgNPs solution exhibited a linear correlation with Al(III) ion concentrations within the linear range of 0.1-50 nM. An outstanding selectivity toward Al(III) was demonstrated by the proposed nanoprobe in the presence of interfering cations. Kinetics was used to study the selectivity of nanoprobe, which indicated second-order kinetics, and the rate constant was very high. The activation energies of Al(III) were found to be the lowest compared to those of other interfering ions. The results of kinetics and thermodynamic study of Al(III) were compared to those of four other competing ions. The thermodynamic data reveal that the interaction best suited for Al(III) ion compared to other metal ions (Al(III) > Co(II) > Hg(II) > Cr(III) ≅ Cr(VI)). The lower detection limit of the proposed nanoprobe for Al(III) is 1 nM. The present method also holds practical applicability for real water samples.
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Affiliation(s)
- Ritu Painuli
- Department
of Chemistry, Banasthali Vidyapith, Banasthali, Tonk 304022, Rajasthan, India
| | - Sapna Raghav
- Department
of Chemistry, Banasthali Vidyapith, Banasthali, Tonk 304022, Rajasthan, India
| | - Dinesh Kumar
- Department
of Chemistry, Banasthali Vidyapith, Banasthali, Tonk 304022, Rajasthan, India
- School
of Chemical Sciences, Central University
of Gujarat, Gandhinagar 382030, Gujarat, India
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37
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Comparative kinetics and thermodynamic studies of fluoride adsorption by two novel synthesized biopolymer composites. Carbohydr Polym 2019; 203:430-440. [DOI: 10.1016/j.carbpol.2018.09.054] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 09/18/2018] [Accepted: 09/20/2018] [Indexed: 11/18/2022]
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