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Wong MY, Lin BS, Hu PS, Huang TY, Huang YK. Nanoparticles of Cs 0.33WO 3 as Antibiofilm Agents and Photothermal Treatment to Inhibit Biofilm Formation. ACS OMEGA 2024; 9:28144-28154. [PMID: 38973863 PMCID: PMC11223238 DOI: 10.1021/acsomega.4c01212] [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: 02/06/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 07/09/2024]
Abstract
Metal oxide nanoparticles with photothermal properties have attracted considerable research attention for their use in biomedical applications. Cesium tungsten oxide (Cs0.33WO3) nanoparticles (NPs) exhibit strong absorption in the NIR region due to localized surface plasmon resonance, through which they convert light to heat; hence, they can be applied to photothermal treatment for bacteria and biofilm ablation. Herein, Cs0.33WO3 NPs were synthesized through solid-phase synthesis, and their physical properties were characterized through Zetasizer, energy dispersive X-ray spectroscopy, Fourier transform infrared spectrometer, and scanning and transmission electron microscopy (SEM and TEM, respectively). Burkholderia cenocepacia isolates were cultured in tryptic soy broth supplemented with glucose, and the biofilm inhibition and antibiofilm effects of the NPs were determined using a crystal violet assay and the Cell Counting Kit-8 (CCK-8) assay. The biofilm morphology and viability of NP-treated cultures after NIR irradiation were evaluated through SEM and confocal microscopy, respectively. The cytotoxicity of NPs to human macrophages was also assessed using the CCK-8 assay. The NPs effectively inhibited biofilm formation, with a formation rate of <10% and a viability rate of <50% at the concentration of ≥200 μg/mL. The confocal analysis revealed that NIR irradiation markedly enhanced biofilm cytotoxicity after treatment with the NPs. The assay of cytotoxicity to human macrophages demonstrated the biocompatibility of the NPs and NIR irradiation. In sum, the Cs0.33WO3 NPs displayed effective biofilm inhibition and antibiofilm activity at 200 μg/mL treatment concentration; they exhibited an enhancement effect under the NIR irradiation, suggesting Cs0.33WO3 NPs are a potential candidate agent for NIR-irradiated photothermal treatment in bacterial biofilm inhibition and antibiofilm.
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Affiliation(s)
- Min Yi Wong
- Division
of Thoracic and Cardiovascular Surgery, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan
- College
of Photonics, National Yang Ming Chiao Tung
University, Tainan
City 71150, Taiwan
| | - Bor-Shyh Lin
- College
of Photonics, National Yang Ming Chiao Tung
University, Tainan
City 71150, Taiwan
| | - Po-Sheng Hu
- College
of Photonics, National Yang Ming Chiao Tung
University, Tainan
City 71150, Taiwan
| | - Tsung-Yu Huang
- Division
of Infectious Diseases, Department of Internal Medicine, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan
- College
of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Yao-Kuang Huang
- Division
of Thoracic and Cardiovascular Surgery, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan
- College
of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
- Division
of Thoracic and Cardiovascular Surgery, Chiayi Hospital, MOHW, Chiayi
City 60096, Taiwan
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Liu M, Pan ZZ, Ohwada M, Tang R, Matsui H, Tada M, Ito M, Ikura A, Nishihara H. Highly Permeable and Regenerative Microhoneycomb Filters. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29177-29187. [PMID: 38781454 DOI: 10.1021/acsami.4c02697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Allergic reactions can profoundly influence the quality of life. To address the health risks posed by allergens and overcome the permeability limitations of the current filter materials, this work introduces a novel microhoneycomb (MH) material for practical filter applications such as masks. Through a synthesis process integrating ice-templating and a gas-phase post-treatment with silane, MH achieves unprecedented levels of moisture resistance and mechanical stability while preserving the highly permeable microchannels. Notably, MH is extremely elastic, with a 92% recovery rate after being compressed to 80% deformation. The filtration efficiency surpasses 98.1% against pollutant particles that simulate airborne pollens, outperforming commercial counterparts with fifth-fold greater air permeability while ensuring unparalleled user comfort. Moreover, MH offers a sustainable solution, being easily regenerated through back-flow blowing, distinguishing it from conventional nonwoven fabrics. Finally, a prototype mask incorporating MH is presented, demonstrating its immense potential as a high-performance filtration material, effectively addressing health risks posed by allergens and other harmful particles.
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Affiliation(s)
- Minghao Liu
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Zheng-Ze Pan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Mao Ohwada
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Rui Tang
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Hirosuke Matsui
- Department of Chemistry, Graduate School of Science/Research Center for Materials Science/Institute for Advance Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
- RIKEN SPring-8 Center, RIKEN, Koto, Sayo, Hyogo 679-5148, Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science/Research Center for Materials Science/Institute for Advance Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
- RIKEN SPring-8 Center, RIKEN, Koto, Sayo, Hyogo 679-5148, Japan
| | - Masashi Ito
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- Advanced Materials and Processing Laboratory, Research Division, Nissan Motor Co., Ltd., 1 Natsushima-cho, Yokosuka, Kanagawa 237-8523, Japan
| | - Ami Ikura
- Advanced Materials and Processing Laboratory, Research Division, Nissan Motor Co., Ltd., 1 Natsushima-cho, Yokosuka, Kanagawa 237-8523, Japan
| | - Hirotomo Nishihara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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Mohamed AT, Hameed RA, El-Moslamy SH, Fareid M, Othman M, Loutfy SA, Kamoun EA, Elnouby M. Facile synthesis of Fe 2O 3, Fe 2O 3@CuO and WO 3 nanoparticles: characterization, structure determination and evaluation of their biological activity. Sci Rep 2024; 14:6081. [PMID: 38480834 PMCID: PMC10937632 DOI: 10.1038/s41598-024-55319-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 02/22/2024] [Indexed: 03/17/2024] Open
Abstract
Due to their high specific surface area and its characteristic's functionalized nanomaterials have great potential in medical applications specialty, as an anticancer. Herein, functional nanoparticles (NPs) based on iron oxide Fe2O3, iron oxide modified with copper oxide Fe2O3@CuO, and tungsten oxide WO3 were facile synthesized for biomedical applications. The obtained nanomaterials have nanocrystal sizes of 35.5 nm for Fe2O3, 7 nm for Fe2O3@CuO, and 25.5 nm for WO3. In addition to octahedral and square nanoplates for Fe2O3, and WO3; respectively. Results revealed that Fe2O3, Fe2O3@CuO, and WO3 NPs showed remarked anticancer effects versus a safe effect on normal cells through cytotoxicity test using MTT-assay. Notably, synthesized NPs e.g. our result demonstrated that Fe2O3@CuO exhibited the lowest IC50 value on the MCF-7 cancer cell line at about 8.876 µg/ml, compared to Fe2O3 was 12.87 µg/ml and WO3 was 9.211 µg/ml which indicate that the modification NPs Fe2O3@CuO gave the highest antiproliferative effect against breast cancer. However, these NPs showed a safe mode toward the Vero normal cell line, where IC50 were monitored as 40.24 µg/ml for Fe2O3, 21.13 µg/ml for Fe2O3@CuO, and 25.41 µg/ml for WO3 NPs. For further evidence. The antiviral activity using virucidal and viral adsorption mechanisms gave practiced effect by viral adsorption mechanism and prevented the virus from replicating inside the cells. Fe2O3@CuO and WO3 NPs showed a complete reduction in the viral load synergistic effect of combinations between the tested two materials copper oxide instead of iron oxide alone. Interestingly, the antimicrobial efficiency of Fe2O3@CuO NPs, Fe2O3NPs, and WO3NPs was evaluated using E. coli, S. aureus, and C. albicans pathogens. The widest microbial inhibition zone (ca. 38.45 mm) was observed with 250 mg/ml of WO3 NPs against E. coli, whereas using 40 mg/ml of Fe2O3@CuO NPS could form microbial inhibition zone ca. 32.86 mm against S. aureus. Nevertheless, C. albicans was relatively resistant to all examined NPs. The superior biomedical activities of these nanostructures might be due to their unique features and accepted evaluations.
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Affiliation(s)
- Asmaa T Mohamed
- Nanotechnology Research Center (NTRC), The British University in Egypt, El-Shorouk City, Suez Desert Road, P.O. Box 43, Cairo, 11837, Egypt
| | - Reda Abdel Hameed
- Basic Science Department, Preparatory Year, University of Ha'il, 1560, Hail, Saudi Arabia
- Medical and Diagnostic Research Centre, University of Ha'il, 55473, Ha'il, Saudi Arabia
| | - Shahira H El-Moslamy
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Al-Arab City, 21934, Alexandria, Egypt
| | - Mohamed Fareid
- Basic Science Department, Preparatory Year, University of Ha'il, 1560, Hail, Saudi Arabia
- Medical and Diagnostic Research Centre, University of Ha'il, 55473, Ha'il, Saudi Arabia
| | - Mohamad Othman
- Basic Science Department, Preparatory Year, University of Ha'il, 1560, Hail, Saudi Arabia
- Medical and Diagnostic Research Centre, University of Ha'il, 55473, Ha'il, Saudi Arabia
| | - Samah A Loutfy
- Nanotechnology Research Center (NTRC), The British University in Egypt, El-Shorouk City, Suez Desert Road, P.O. Box 43, Cairo, 11837, Egypt
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute (NCI), Cairo University, Fom El-Khalig, 11796, Cairo, Egypt
| | - Elbadawy A Kamoun
- Nanotechnology Research Center (NTRC), The British University in Egypt, El-Shorouk City, Suez Desert Road, P.O. Box 43, Cairo, 11837, Egypt.
- Department of Chemistry, College of Science, King Faisal University, 31982, Al-Ahsa, Saudi Arabia.
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications, New Borg Al-Arab City, 21934, Alexandria, Egypt.
| | - Mohamed Elnouby
- Nanotechnology and Composite Materials Department, Advanced Technology and New Materials Research (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Al-Arab City, 21934, Alexandria, Egypt.
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Zhao Q, Su X, Wang Y, Liu R, Bartlam M. Structural analysis of molybdate binding protein ModA from Klebsiella pneumoniae. Biochem Biophys Res Commun 2023; 681:41-46. [PMID: 37751633 DOI: 10.1016/j.bbrc.2023.09.055] [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: 08/26/2023] [Accepted: 09/20/2023] [Indexed: 09/28/2023]
Abstract
Klebsiella pneumoniae, a facultative anaerobe, relies on acquiring molybdenum to sustain growth in anaerobic conditions, a crucial factor for the pathogen to establish infections within host environments. Molybdenum plays a critical role in pathogenesis as it forms an essential component of cofactors for molybdoenzymes. K. pneumoniae utilizes the ABC (ATP-Binding-Cassette) transporter encoded by the modABC operon for uptake of the group VI elements molybdenum and tungsten. In this study, we determined the X-ray crystal structures of both the molybdenum-free and molybdenum-bound substrate-binding protein (SBP) ModA from Klebsiella pneumoniae to 2.00 Å and 1.77 Å resolution respectively. ModA crystallizes in the space group P222 with a single monomer in one asymmetric unit. The purified protein remained soluble and specifically bound molybdate and tungstate with Kd values of 6.3 nM and 5.2 nM, respectively. Tungstate competes with molybdate by binding to ModA, resulting in enhanced antimicrobial activity. These data provide a starting point for structural and functional analyses of molybdate transport in K. pneumoniae.
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Affiliation(s)
- Qi Zhao
- College of Life Sciences, Nankai University, Tianjin, 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Xiaokang Su
- College of Life Sciences, Nankai University, Tianjin, 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Yanan Wang
- College of Life Sciences, Nankai University, Tianjin, 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Ruihua Liu
- College of Life Sciences, Nankai University, Tianjin, 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China.
| | - Mark Bartlam
- College of Life Sciences, Nankai University, Tianjin, 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China; Nankai International Advanced Research Institute (Shenzhen Futian), Nankai University, Tianjin, 300071, China.
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5
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Zia S, Peng S, Bashir A, Kausar T, Khan SR, Muneer A, Nawaz A, Alnajjar LI, Saeed M, Alshammari N, Aqib AI, Li K. Resistance Modulation of Individual and Polymicrobial Culture of S. aureus and E. coli through Nanoparticle-Coupled Antibiotics. Biomedicines 2023; 11:2988. [PMID: 38001988 PMCID: PMC10669891 DOI: 10.3390/biomedicines11112988] [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: 10/02/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Polymicrobial mastitis is now becoming very common in dairy animals, resulting in exaggerated resistance to multiple antibiotics. The current study was executed to find drug responses in individual and mixed Culture of Staphylococcus aureus and Escherichia coli isolated from milk samples, as well as to evaluate the antibacterial potential of tungsten oxide nanoparticles. These isolates (alone and in mixed culture) were further processed for their responses to antibiotics using the disc diffusion method. On the other hand, tungsten oxide WO3 (W) nanoparticles coupled with antibiotics (ampicillin, A, and oxytetracycline, O) were prepared through the chemical method and characterized by X-ray diffraction, scanning electron microscopy (SEM), and UV-visible techniques. The preparations consisting of nanoparticles alone (W) and coupled with ampicillin (WA) and oxytetracycline (WO) were tested against individual and mixed Culture through the well diffusion and broth microdilution methods. The findings of the current study showed the highest resistance in E. coli was against penicillin (60%) and ampicillin (50%), while amikacin, erythromycin, ciprofloxacin, and oxytetracycline were the most effective antibiotics. S. aureus showed the highest resistance against penicillin (50%), oxytetracycline (40%), and ciprofloxacin (40%), while, except for ampicillin, the sensitive strains of S. aureus were in the range of 40-60% against the rest of antibiotics. The highest zones of inhibition (ZOI) against mixed Culture were shown by imipenem and ampicillin, whereas the highest percentage decrease in ZOI was noted in cases of ciprofloxacin (-240%) and gentamicin (-119.4%) in comparison to individual Culture of S. aureus and E. coli. It was noteworthy that the increase in ZOI was not more than 38% against mixed Culture as compared to the individual Culture. On the other hand, there was a significant reduction in the minimum inhibitory concentration (MIC) of nanoparticle-coupled antibiotics compared to nanoparticles alone for individual and mixed-culture bacteria, while MICs in the case of mixed Culture remained consistently high throughout the trial. This study therefore concluded that diverse drug resistance was present in both individual and mixed-culture bacteria, whereas the application of tungsten oxide nanoparticle-coupled antibiotics proved to be an effective candidate in reversing the drug resistance in bacterial strains.
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Affiliation(s)
- Sana Zia
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (S.Z.); (S.P.)
- Department of Zoology, The Government Sadiq College Women University, Bahawalpur 61300, Pakistan;
| | - Song Peng
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (S.Z.); (S.P.)
| | - Arslan Bashir
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan (S.R.K.)
| | - Tasleem Kausar
- Department of Zoology, The Government Sadiq College Women University, Bahawalpur 61300, Pakistan;
| | - Shanza Rauf Khan
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan (S.R.K.)
| | - Afshan Muneer
- Department of Zoology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan;
| | - Attia Nawaz
- Department of Microbiology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan;
| | - Lina I. Alnajjar
- Department of Pharmacy Practice, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Mohd Saeed
- Department of Biology, College of Science, University of Hail, P.O. Box 2440, Hail 34464, Saudi Arabia; (M.S.); (N.A.)
| | - Nawaf Alshammari
- Department of Biology, College of Science, University of Hail, P.O. Box 2440, Hail 34464, Saudi Arabia; (M.S.); (N.A.)
| | - Amjad Islam Aqib
- Department of Medicine, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - Kun Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (S.Z.); (S.P.)
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Ermakov AM, Afanasyeva VA, Lazukin AV, Shlyapnikov YM, Zhdanova ES, Kolotova AA, Blagodatski AS, Ermakova ON, Chukavin NN, Ivanov VK, Popov AL. Synergistic Antimicrobial Effect of Cold Atmospheric Plasma and Redox-Active Nanoparticles. Biomedicines 2023; 11:2780. [PMID: 37893152 PMCID: PMC10604215 DOI: 10.3390/biomedicines11102780] [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: 09/05/2023] [Revised: 10/03/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
Cold argon plasma (CAP) and metal oxide nanoparticles are well known antimicrobial agents. In the current study, on an example of Escherichia coli, a series of analyses was performed to assess the antibacterial action of the combination of these agents and to evaluate the possibility of using cerium oxide and cerium fluoride nanoparticles for a combined treatment of bacterial diseases. The joint effect of the combination of cold argon plasma and several metal oxide and fluoride nanoparticles (CeO2, CeF3, WO3) was investigated on a model of E. coli colony growth on agar plates. The mutagenic effect of different CAP and nanoparticle combinations on bacterial DNA was investigated, by means of a blue-white colony assay and RAPD-PCR. The effect on cell wall damage, using atomic force microscopy, was also studied. The results obtained demonstrate that the combination of CAP and redox-active metal oxide nanoparticles (RAMON) effectively inhibits bacterial growth, providing a synergistic antimicrobial effect exceeding that of any of the agents alone. The combination of CAP and CeF3 was shown to be the most effective mutagen against plasmid DNA, and the combination of CAP and WO3 was the most effective against bacterial genomic DNA. The analysis of direct cell wall damage by atomic force microscopy showed the combination of CAP and CeF3 to be the most effective antimicrobial agent. The combination of CAP and redox-active metal oxide or metal fluoride nanoparticles has a strong synergistic antimicrobial effect on bacterial growth, resulting in plasmid and genomic DNA damage and cell wall damage. For the first time, a strong antimicrobial and DNA-damaging effect of CeF3 nanoparticles has been demonstrated.
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Affiliation(s)
- Artem M. Ermakov
- Hospital of the Pushchino Scientific Center of the Russian Academy of Sciences, 142290 Pushchino, Russia (V.A.A.); (E.S.Z.)
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
- ANO Engineering Physics Institute, 142210 Serpukhov, Russia
| | - Vera A. Afanasyeva
- Hospital of the Pushchino Scientific Center of the Russian Academy of Sciences, 142290 Pushchino, Russia (V.A.A.); (E.S.Z.)
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
| | - Alexander V. Lazukin
- Troitsk Institute of Innovative and Thermonuclear Research (JSC “SSC RF TRINITY”), 108840 Moscow, Russia;
| | - Yuri M. Shlyapnikov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
| | - Elizaveta S. Zhdanova
- Hospital of the Pushchino Scientific Center of the Russian Academy of Sciences, 142290 Pushchino, Russia (V.A.A.); (E.S.Z.)
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
| | - Anastasia A. Kolotova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
| | - Artem S. Blagodatski
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
| | - Olga N. Ermakova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
| | - Nikita N. Chukavin
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
- Scientific and Educational Center, State University of Education, 105005 Moscow, Russia
| | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Anton L. Popov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia; (Y.M.S.); (A.A.K.); (A.S.B.); (O.N.E.); (N.N.C.)
- Scientific and Educational Center, State University of Education, 105005 Moscow, Russia
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7
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Kim SC. Metal Particle Pencil Beam Spray-Coating Method for High-Density Polymer-Resin Composites: Evaluation of Radiation-Shielding Sheet Properties. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6092. [PMID: 37763369 PMCID: PMC10533030 DOI: 10.3390/ma16186092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
Medical shielding suits must be lightweight and satisfy the requirements of thin films to guarantee user mobility and safety. The thin film weight is related to the density and thickness, which are associated with the particle dispersion in shielding materials. An even distribution of metal particles in a polymer can maintain the spacing among them. This paper proposes a pencil beam spray-coating method that involves spraying a constant amount of a polyethylene and tungsten mixture in a thin beam onto a nonwoven fabric at a constant speed. This technique yields higher productivity than does the electrospinning method and is expected to produce materials with better shielding performance than that of materials obtained using the calender method. The shielding performance was evaluated by manufacturing shielding sheets (thickness: 0.48-0.54 mm) using the calender and pencil beam spray-coating methods under the same conditions. The densities and performances of the sheets differed significantly. The sheet manufactured using the proposed method had an even particle dispersion and exhibited 2-4% better shielding performance than did that manufactured using the calender method. Therefore, the pencil beam spray-coating method can effectively satisfy the requirements of thin films for medical radiation-shielding materials while increasing the material flexibility.
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Affiliation(s)
- Seon-Chil Kim
- Department of Biomedical Engineering, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Republic of Korea; ; Tel.: +82-10-4803-7773
- Department of Medical Informatics, School of Medicine, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Republic of Korea
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8
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Francis DV, Jayakumar MN, Ahmad H, Gokhale T. Antimicrobial Activity of Biogenic Metal Oxide Nanoparticles and Their Synergistic Effect on Clinical Pathogens. Int J Mol Sci 2023; 24:9998. [PMID: 37373146 PMCID: PMC10298676 DOI: 10.3390/ijms24129998] [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] [Received: 04/28/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The rising prevalence of antibiotic-resistance is currently a grave issue; hence, novel antimicrobial agents are being explored and developed to address infections resulting from multiple drug-resistant pathogens. Biogenic CuO, ZnO, and WO3 nanoparticles can be considered as such agents. Clinical isolates of E. coli, S. aureus, methicillin-resistant S. aureus (MRSA), and Candida albicans from oral and vaginal samples were treated with single and combination metal nanoparticles incubated under dark and light conditions to understand the synergistic effect of the nanoparticles and their photocatalytic antimicrobial activity. Biogenic CuO and ZnO nanoparticles exhibited significant antimicrobial effects under dark incubation which did not alter on photoactivation. However, photoactivated WO3 nanoparticles significantly reduced the number of viable cells by 75% for all the test organisms, thus proving to be a promising antimicrobial agent. Combinations of CuO, ZnO, and WO3 nanoparticles demonstrated synergistic action as a significant increase in their antimicrobial property (>90%) was observed compared to the action of single elemental nanoparticles. The mechanism of the antimicrobial action of metal nanoparticles both in combination and in isolation was assessed with respect to lipid peroxidation due to ROS (reactive oxygen species) generation by measuring malondialdehyde (MDA) production, and the damage to cell integrity using live/dead staining and quantitating with the use of flow cytometry and fluorescence microscopy.
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Affiliation(s)
- Dali Vilma Francis
- Department of Biotechnology, Birla Institute of Technology and Science, Pilani, Dubai Campus, Dubai International Academic City, Dubai P.O. Box 345055, United Arab Emirates; (D.V.F.); (M.N.J.)
| | - Manju Nidagodu Jayakumar
- Department of Biotechnology, Birla Institute of Technology and Science, Pilani, Dubai Campus, Dubai International Academic City, Dubai P.O. Box 345055, United Arab Emirates; (D.V.F.); (M.N.J.)
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Hafiz Ahmad
- Department of Medical Microbiology & Immunology, RAK College of Medical Sciences, RAK Medical and Health Sciences University, Ras Al Khaimah P.O. Box 12973, United Arab Emirates;
- Adjunct Clinical Microbiologist and Head of Molecular Division, RAK Hospital, Ras Al Khaimah P.O. Box 12973, United Arab Emirates
| | - Trupti Gokhale
- Department of Biotechnology, Birla Institute of Technology and Science, Pilani, Dubai Campus, Dubai International Academic City, Dubai P.O. Box 345055, United Arab Emirates; (D.V.F.); (M.N.J.)
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9
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San Valentin EM, Damasco JA, Bernardino M, Court KA, Godin B, Canlas GM, Melancon A, Chintalapani G, Jacobsen MC, Norton W, Layman RR, Fowlkes N, Chen SR, Huang SY, Melancon MP. Image-guided deployment and monitoring of a novel tungsten nanoparticleâ€"infused radiopaque absorbable inferior vena cava filter in pigs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.06.527049. [PMID: 36798362 PMCID: PMC9934538 DOI: 10.1101/2023.02.06.527049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The use of absorbable inferior vena cava filters (IVCFs) constructed with poly-p-dioxanone (PPDO) eliminates risks and complications associated with the use of retrievable metallic filters. Radiopacity of radiolucent PPDO IVCFs can be improved with the incorporation of nanoparticles (NPs) made of high-atomic number materials such as gold and bismuth. In this study, we focused on incorporating tungsten NPs (WNPs), along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of the WNPs. We compared the imaging properties of WNPs with single-polymer PHB (W-P) and WNPs with polymer blends consisting of PHB, PCL, and PVP (W-PB). Our in vitro analyses using PPDO sutures showed enhanced radiopacity with either W-P or W-PB coating, without compromising the inherent physico-mechanical properties of the PPDO sutures. We observed a more sustained release of WNPs from W-PB-coated sutures than W-P-coated sutures. We successfully deployed W-P- and W-PB-coated IVCFs into the inferior vena cava of pig models, with monitoring by fluoroscopy. At the time of deployment, W-PB-coated IVCFs showed a 2-fold increase in radiopacity compared to W-P-coated IVCFs. Longitudinal monitoring of in vivo IVCFs over a 12-week period showed a drastic decrease in radiopacity at week 3 for both filters. Results of this study highlight the utility of NPs and polymers for enhancing radiopacity of medical devices; however, different methods of incorporating NPs and polymers can still be explored to improve the efficacy, safety, and quality of absorbable IVCFs.
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10
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Crintea A, Carpa R, Mitre AO, Petho RI, Chelaru VF, Nădășan SM, Neamti L, Dutu AG. Nanotechnology Involved in Treating Urinary Tract Infections: An Overview. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:555. [PMID: 36770516 PMCID: PMC9919202 DOI: 10.3390/nano13030555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 01/22/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Considered as the most frequent contaminations that do not require hospitalization, urinary tract infections (UTIs) are largely known to cause significant personal burdens on patients. Although UTIs overall are highly preventable health issues, the recourse to antibiotics as drug treatments for these infections is a worryingly spread approach that should be addressed and gradually overcome in a contemporary, modernized healthcare system. With a virtually alarming global rise of antibiotic resistance overall, nanotechnologies may prove to be the much-needed 'lifebuoy' that will eventually suppress this prejudicial phenomenon. This review aims to present the most promising, currently known nano-solutions, with glimpses on clinical and epidemiological aspects of the UTIs, prospective diagnostic instruments, and non-antibiotic treatments, all of these engulfed in a comprehensive overview.
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Affiliation(s)
- Andreea Crintea
- Department of Medical Biochemistry, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Rahela Carpa
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400084 Cluj-Napoca, Romania
| | - Andrei-Otto Mitre
- Department of Pathophysiology, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Robert Istvan Petho
- Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Vlad-Florin Chelaru
- Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Sebastian-Mihail Nădășan
- Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Lidia Neamti
- Department of Medical Biochemistry, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Alina Gabriela Dutu
- Department of Medical Biochemistry, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
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11
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Matharu RK, Ahmed J, Seo J, Karu K, Golshan MA, Edirisinghe M, Ciric L. Antibacterial Properties of Honey Nanocomposite Fibrous Meshes. Polymers (Basel) 2022; 14:polym14235155. [PMID: 36501550 PMCID: PMC9740266 DOI: 10.3390/polym14235155] [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: 04/12/2022] [Revised: 10/25/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022] Open
Abstract
Natural substances are increasingly being developed for use in health-related applications. Honey has attracted significant interest, not only for its physical and chemical properties, but also for its antibacterial activity. For the first time, suspensions of Black Forest honeydew honey and manuka honey UMF 20+ were examined for their antibacterial properties against Escherichia coli and Staphylococcus epidermidis using flow cytometry. The inhibitory effect of honey on bacterial growth was evident at concentrations of 10, 20 and 30 v/v%. The minimum inhibitory effects of both honey types against each bacterium were also investigated and reported. Electrospray ionisation (ESI) mass spectrometry was performed on both Black Forest honeydew honey and manuka honey UMF 20+. Manuka honey had a gluconic concentration of 2519 mg/kg, whilst Black Forest honeydew honey had a concentration of 2195 mg/kg. Manuka honey demonstrated the strongest potency when compared to Black Forest honeydew honey; therefore, it was incorporated into nanofiber scaffolds using pressurised gyration and 10, 20 and 30 v/v% manuka honey-polycaprolactone solutions. Composite fibres were analysed for their morphology and topography using scanning electron microscopy. The average fibre diameter of the manuka honey-polycaprolactone scaffolds was found to range from 437 to 815 nm. The antibacterial activity of the 30 v/v% scaffolds was studied using S. epidermidis. Strong antibacterial activity was observed with a bacterial reduction rate of over 90%. The results show that honey composite fibres formed using pressurised gyration can be considered a natural therapeutic agent for various medicinal purposes, including wound-healing applications.
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Affiliation(s)
- Rupy Kaur Matharu
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
- Department of Civil, Environmental & Geomatic Engineering, University College London, Chadwick Building, Gower Street, London WC1E 6BT, UK
- Correspondence:
| | - Jubair Ahmed
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - Jegak Seo
- Department of Civil, Environmental & Geomatic Engineering, University College London, Chadwick Building, Gower Street, London WC1E 6BT, UK
| | - Kersti Karu
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
| | - Mitra Ashrafi Golshan
- Department of Civil, Environmental & Geomatic Engineering, University College London, Chadwick Building, Gower Street, London WC1E 6BT, UK
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - Lena Ciric
- Department of Civil, Environmental & Geomatic Engineering, University College London, Chadwick Building, Gower Street, London WC1E 6BT, UK
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12
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A systemic review on liquid crystals, nanoformulations and its application for detection and treatment of SARS - CoV- 2 (COVID - 19). J Mol Liq 2022; 362:119795. [PMID: 35832289 PMCID: PMC9265145 DOI: 10.1016/j.molliq.2022.119795] [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: 05/04/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 01/31/2023]
Abstract
The COVID-19 is a pandemic caused by the SARS-CoV-2 virus, has instigated major health problems and prompted WHO to proclaim a worldwide medical emergency. The knowledge of SARS-CoV-2 fundamental structure, aetiology, its entrance mechanism, membrane hijacking and immune response against the virus, are important parameters to develop effective vaccines and medicines. Liquid crystals integrated nano-techniques and various nanoformulations were applied to tackle the severity of the virus. It was reported that nanoformulations have helped to enhance the effectiveness of presently accessible antiviral medicines or to elicit a fast immunological response against COVID-19 virus. Applications of liquid crystals, nanostructures, nanoformulations and nanotechnology in diagnosis, prevention, treatment and tailored vaccine administration against COVID-19 which will help in establishing the framework for a successful pandemic combat are reviewed. This review also focuses on limitations associated with liquid crystal-nanotechnology based systems and suggests the possible ways to address these limitations. Also, topical advancements in the ground of liquid crystals and nanostructures established diagnostics (nanosensor/biosensor) are discussed in detail.
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13
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Silingardi F, Bonvicini F, Cassani MC, Mazzaro R, Rubini K, Gentilomi GA, Bigi A, Boanini E. Hydroxyapatite Decorated with Tungsten Oxide Nanoparticles: New Composite Materials against Bacterial Growth. J Funct Biomater 2022; 13:jfb13030088. [PMID: 35893456 PMCID: PMC9326691 DOI: 10.3390/jfb13030088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/13/2022] [Accepted: 06/22/2022] [Indexed: 01/26/2023] Open
Abstract
The availability of biomaterials able to counteract bacterial colonization is one of the main requirements of functional implants and medical devices. Herein, we functionalized hydroxyapatite (HA) with tungsten oxide (WO3) nanoparticles in the aim to obtain composite materials with improved biological performance. To this purpose, we used HA, as well as HA functionalized with polyacrilic acid (HAPAA) or poly(ethylenimine) (HAPEI), as supports and polyvinylpyrrolidone (PVP) as stabilizing agent for WO3 nanoparticles. The number of nanoparticles loaded on the substrates was determined through Molecular Plasma-Atomic Emission Spectroscopy and is quite small, so it cannot be detected through X-ray diffraction analysis. It increases from HAPAA, to HA, to HAPEI, in agreement with the different values of zeta potential of the different substrates. HRTEM and STEM images show the dimensions of the nanoparticles are very small, less than 1 nm. In physiological solution HA support displays a greater tungsten cumulative release than HAPEI, despite its smaller loaded amount. Indeed, WO3 nanoparticles-functionalized HA exhibits a remarkable antibacterial activity against the Gram-positive Staphylococcus aureus in absence of cytotoxicity, which could be usefully exploited in the biomedical field.
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Affiliation(s)
- Francesca Silingardi
- Department of Chemistry ‘‘Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (F.S.); (K.R.); (A.B.)
| | - Francesca Bonvicini
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy; (F.B.); (G.A.G.)
| | - Maria Cristina Cassani
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
- Correspondence: (M.C.C.); (E.B.)
| | - Raffaello Mazzaro
- Department of Phisics and Astronomy “A. Righi”, University of Bologna, Viale Berti Pichat 6/2, 40138 Bologna, Italy;
| | - Katia Rubini
- Department of Chemistry ‘‘Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (F.S.); (K.R.); (A.B.)
| | - Giovanna Angela Gentilomi
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy; (F.B.); (G.A.G.)
| | - Adriana Bigi
- Department of Chemistry ‘‘Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (F.S.); (K.R.); (A.B.)
| | - Elisa Boanini
- Department of Chemistry ‘‘Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (F.S.); (K.R.); (A.B.)
- Correspondence: (M.C.C.); (E.B.)
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14
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Ejeromedoghene O, Hu YP, Oderinde O, Yao F, Akinremi C, Akinyeye R, Adewuyi S, Fu G. Transparent and photochromic poly(hydroxyethyl acrylate–acrylamide)/
WO
3
hydrogel with antibacterial properties against bacterial keratitis in contact lens. J Appl Polym Sci 2022. [DOI: 10.1002/app.51815] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Yi Ping Hu
- School of Chemistry and Chemical Engineering Southeast University Nanjing China
| | - Olayinka Oderinde
- Department of Chemical Sciences, Faculty of Basic Medical and Applied Sciences Lead City University Ibadan Nigeria
| | - Fang Yao
- School of Chemistry and Chemical Engineering Southeast University Nanjing China
| | - Caroline Akinremi
- Department of Chemistry College of Physical Sciences, Federal University of Agriculture Abeokuta Nigeria
| | - Richard Akinyeye
- Department of Industrial Chemistry Ekiti State University Ado‐Ekiti Nigeria
| | - Sheriff Adewuyi
- Department of Chemistry College of Physical Sciences, Federal University of Agriculture Abeokuta Nigeria
| | - Guodong Fu
- School of Chemistry and Chemical Engineering Southeast University Nanjing China
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15
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Thirumoorthi G, Gnanavel B, Kalaivani M, Ragunathan A, Venkatesan H. Suitability of Iron (Fe)-Doped Tungsten Oxide (WO 3) Nanomaterials for Photocatalytic and Antibacterial Applications. INTERNATIONAL JOURNAL OF NANOSCIENCE 2021. [DOI: 10.1142/s0219581x21500423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Pure and “Fe ([Formula: see text][Formula: see text]wt.%)-doped” WO[Formula: see text] nanoparticles were prepared by facile microwave irradiation method and that was investigated for strong photo catalytic and antibacterial activity applications for the first time. The primary aim of this work is to reveal the great importance of oxygen vacancies ([Formula: see text] due to dopant (Fe[Formula: see text] for photo catalytic and antibacterial activity applications. This work also discusses the contribution of oxygen vacancies and their dependence on surface area and phase formation which are of great research interest for water purification and biological sciences. Herein, pure and “Fe ([Formula: see text][Formula: see text]wt.%)-doped” WO[Formula: see text] nanoparticles were successfully synthesized by facile microwave irradiation (MWI) method (2.45 GHz/240W/10min) in ambient atmosphere. The phase formation and the crystalline nature of the prepared products were evaluated using powder X-ray diffraction (XRD). It confirmed the phase formation of orthorhombic and monoclinic phase formations for the pure (WO[Formula: see text]H2O) and annealed samples (W[Formula: see text]O[Formula: see text] and WO[Formula: see text], respectively. Optical behavior of the samples from UV-Vis diffuse reflectance analysis revealed that W[Formula: see text]O[Formula: see text] has remarkable bandgap values (1.96[Formula: see text]eV) that clearly emphasizes the transfer of oxygen ions which helps in the movement of oxygen vacancies inside the crystalline domain. The morphological nature of the prepared products was observed by FE-SEM analysis and the average dimension was found to be 0.2–3.2[Formula: see text][Formula: see text]m and 2–4[Formula: see text][Formula: see text]m for the pure and annealed products, respectively. The specific surface area from BET analysis explored that W[Formula: see text]O[Formula: see text] having 55.16[Formula: see text]m2g[Formula: see text] was found to be higher than that of commercially available WO3. The photocatalytic behavior of the prepared compounds morphologies was investigated via Rhodamine B (RhB) degradation under visible light irradiation. These results showed “Fe-doped” annealed WO3 nanoparticles have degradation efficiency of 86.9% along with high stable nature. On the other hand, to identify the suitability of the prepared products for antibacterial activity, the microbial strains of Gram-positive Bacillus sp. and Gram-negative strains of Pseudomonassp. and Salmonellasp. were used for the antimicrobial assay[Formula: see text] The results indicated that W[Formula: see text]O[Formula: see text] showed enhanced antibacterial nature when compared to that of Stoichiometry tungsten oxide (WO[Formula: see text] nanomaterials. From these observations, this work emphasizes the importance of oxygen vacancies for antibacterial activity applications.
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Affiliation(s)
- G. Thirumoorthi
- PG & Research Department of Physics, Chikkaiah Naicker College, Erode, Tamilnadu, India
| | - B. Gnanavel
- PG & Research Department of Physics, Chikkaiah Naicker College, Erode, Tamilnadu, India
| | - M. Kalaivani
- PG & Research Department of Physics, Chikkaiah Naicker College, Erode, Tamilnadu, India
| | - Abirami Ragunathan
- Department of Nanotechnology, Anna University Regional Centre, Coimbatore, Tamilnadu, India
| | - Hariharan Venkatesan
- Department of Physics, Mahendra Arts & Science College, Namakkal, Tamilnadu, India
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16
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Matharu RK, Cheong YK, Ren G, Edirisinghe M, Ciric L. Exploiting the antiviral potential of intermetallic nanoparticles. EMERGENT MATERIALS 2021; 5:1251-1260. [PMID: 34778706 PMCID: PMC8577177 DOI: 10.1007/s42247-021-00306-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Viral pandemic outbreaks cause a significant burden on global health as well as healthcare expenditure. The use of antiviral agents not only reduces the spread of viral pathogens but also diminishes the likelihood of them causing infection. The antiviral properties of novel copper-silver and copper-zinc intermetallic nanoparticles against Escherichia coli bacteriophage MS2 (RNA virus) and Escherichia coli bacteriophage T4 (DNA virus) are presented. The intermetallic nanoparticles were spherical in shape and were between 90 and 120 nm. Antiviral activity was assessed at concentrations ranging from 0.05 to 2.0 wt/v% for 3 and 24 h using DNA and RNA virus model organisms. Both types of nanoparticles demonstrated strong potency towards RNA viruses (> 89% viral reduction), whilst copper-silver nanoparticles were slightly more toxic towards DNA viruses when compared to copper-zinc nanoparticles. Both nanoparticles were then incorporated into polymeric fibres (carrier) to investigate their antiviral effectiveness when composited into polymeric matrices. Fibres containing copper-silver nanoparticles exhibited favourable antiviral properties, with a viral reduction of 75% after 3 h of exposure. The excellent antiviral properties of the intermetallic nanoparticles reported in this study against both types of viruses together with their unique material properties can make them significant alternatives to conventional antiviral therapies and decontamination agents.
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Affiliation(s)
- Rupy Kaur Matharu
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
- Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London, WC1E 6BT UK
| | - Yuen-Ki Cheong
- School of Engineering and Computer Science, University of Hertfordshire, Hatfield, AL10 9AB UK
| | - Guogang Ren
- School of Engineering and Computer Science, University of Hertfordshire, Hatfield, AL10 9AB UK
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
| | - Lena Ciric
- Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London, WC1E 6BT UK
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17
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Pullangott G, Kannan U, S G, Kiran DV, Maliyekkal SM. A comprehensive review on antimicrobial face masks: an emerging weapon in fighting pandemics. RSC Adv 2021; 11:6544-6576. [PMID: 35423213 PMCID: PMC8694960 DOI: 10.1039/d0ra10009a] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/20/2021] [Indexed: 12/15/2022] Open
Abstract
The world has witnessed several incidents of epidemics and pandemics since the beginning of human existence. The gruesome effects of microbial threats create considerable repercussions on the healthcare systems. The continually evolving nature of causative viruses due to mutation or re-assortment sometimes makes existing medicines and vaccines inactive. As a rapid response to such outbreaks, much emphasis has been placed on personal protective equipment (PPE), especially face mask, to prevent infectious diseases from airborne pathogens. Wearing face masks in public reduce disease transmission and creates a sense of community solidarity in collectively fighting the pandemic. However, excessive use of single-use polymer-based face masks can pose a significant challenge to the environment and is increasingly evident in the ongoing COVID-19 pandemic. On the contrary, face masks with inherent antimicrobial properties can help in real-time deactivation of microorganisms enabling multiple-use and reduces secondary infections. Given the advantages, several efforts are made incorporating natural and synthetic antimicrobial agents (AMA) to produce face mask with enhanced safety, and the literature about such efforts are summarised. The review also discusses the literature concerning the current and future market potential and environmental impacts of face masks. Among the AMA tested, metal and metal-oxide based materials are more popular and relatively matured technology. However, the repeated use of such a face mask may pose a danger to the user and environment due to leaching/detachment of nanoparticles. So careful consideration is required to select AMA and their incorporation methods to reduce their leaching and environmental impacts. Also, systematic studies are required to establish short-term and long-term benefits.
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Affiliation(s)
- Gayathri Pullangott
- Department of Civil and Environmental Engineering, Indian Institute of Technology Tirupati Andhra Pradesh 517619 India +91 877 2503004 +91 877 2503164
| | - Uthradevi Kannan
- Department of Civil and Environmental Engineering, Indian Institute of Technology Tirupati Andhra Pradesh 517619 India +91 877 2503004 +91 877 2503164
| | - Gayathri S
- Department of Civil and Environmental Engineering, Indian Institute of Technology Tirupati Andhra Pradesh 517619 India +91 877 2503004 +91 877 2503164
| | - Degala Venkata Kiran
- Department of Mechanical Engineering, Indian Institute of Technology Tirupati Andhra Pradesh 517619 India
| | - Shihabudheen M Maliyekkal
- Department of Civil and Environmental Engineering, Indian Institute of Technology Tirupati Andhra Pradesh 517619 India +91 877 2503004 +91 877 2503164
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18
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Mohapatra A, Uthaman S, Park IK. External and Internal Stimuli-Responsive Metallic Nanotherapeutics for Enhanced Anticancer Therapy. Front Mol Biosci 2021; 7:597634. [PMID: 33505987 PMCID: PMC7831291 DOI: 10.3389/fmolb.2020.597634] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/30/2020] [Indexed: 12/12/2022] Open
Abstract
Therapeutic, diagnostic, and imaging approaches based on nanotechnology offer distinct advantages in cancer treatment. Various nanotherapeutics have been presented as potential alternatives to traditional anticancer therapies such as chemotherapy, radiotherapy, and surgical intervention. Notably, the advantage of nanotherapeutics is mainly attributable to their accumulation and targeting ability toward cancer cells, multiple drug-carrying abilities, combined therapies, and imaging approaches. To date, numerous nanoparticle formulations have been developed for anticancer therapy and among them, metallic nanotherapeutics reportedly demonstrate promising cancer therapeutic and diagnostic efficiencies owing to their dense surface functionalization ability, uniform size distribution, and shape-dependent optical responses, easy and cost-effective synthesis procedure, and multiple anti-cancer effects. Metallic nanotherapeutics can remodel the tumor microenvironment by changing unfavorable therapeutic conditions into therapeutically accessible ones with the help of different stimuli, including light, heat, ultrasound, an alternative magnetic field, redox, and reactive oxygen species. The combination of metallic nanotherapeutics with both external and internal stimuli can be used to trigger the on-demand release of therapeutic molecules, augmenting the therapeutic efficacies of anticancer therapies such as photothermal therapy, photodynamic therapy, magnetic hyperthermia, sonodynamic therapy, chemodynamic therapy, and immunotherapy. In this review, we have summarized the role of different metallic nanotherapeutics in anti-cancer therapy, as well as their combinational effects with multiple stimuli for enhanced anticancer therapy.
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Affiliation(s)
- Adityanarayan Mohapatra
- Department of Biomedical Sciences, Chonnam National University Medical School, Jeollanam-do, South Korea
| | - Saji Uthaman
- Department of Polymer Science and Engineering, Chungnam National University, Daejeon, South Korea
| | - In-Kyu Park
- Department of Biomedical Sciences, Chonnam National University Medical School, Jeollanam-do, South Korea
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19
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Aydogdu MO, Altun E, Chung E, Ren G, Homer-Vanniasinkam S, Chen B, Edirisinghe M. Surface interactions and viability of coronaviruses. J R Soc Interface 2021; 18:20200798. [PMID: 33402019 PMCID: PMC7879773 DOI: 10.1098/rsif.2020.0798] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/07/2020] [Indexed: 12/19/2022] Open
Abstract
The recently emerged coronavirus pandemic (COVID-19) has become a worldwide threat affecting millions of people, causing respiratory system related problems that can end up with extremely serious consequences. As the infection rate rises significantly and this is followed by a dramatic increase in mortality, the whole world is struggling to accommodate change and is trying to adapt to new conditions. While a significant amount of effort is focused on developing a vaccine in order to make a game-changing anti-COVID-19 breakthrough, novel coronavirus (SARS-CoV-2) is also developing mutations rapidly as it transmits just like any other virus and there is always a substantial chance of the invented antibodies becoming ineffective as a function of time, thus failing to inhibit virus-to-cell binding efficiency as the spiked protein keeps evolving. Hence, controlling the transmission of the virus is crucial. Therefore, this review summarizes the viability of coronaviruses on inanimate surfaces under different conditions while addressing the current state of known chemical disinfectants for deactivation of the coronaviruses. The review attempts to bring together a wide spectrum of surface-virus-cleaning agent interactions to help identify material selection for inanimate surfaces that have frequent human contact and cleaning procedures for effective prevention of COVID-19 transmission.
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Affiliation(s)
- Mehmet Onur Aydogdu
- Department of Mechanical Engineering, University College London (UCL), Torrington Place, London WC1E 7JE, UK
| | - Esra Altun
- Department of Mechanical Engineering, University College London (UCL), Torrington Place, London WC1E 7JE, UK
| | - Etelka Chung
- Science and Technology Research Institute, University of Hertfordshire, Hatfield AL10 9AB, UK
| | - Guogang Ren
- Science and Technology Research Institute, University of Hertfordshire, Hatfield AL10 9AB, UK
| | | | - Biqiong Chen
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast BT7 1NN, UK
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London (UCL), Torrington Place, London WC1E 7JE, UK
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20
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Effect of AuNPs and AgNPs on the Antioxidant System and Antioxidant Activity of Lavender ( Lavandula angustifolia Mill.) from In Vitro Cultures. Molecules 2020; 25:molecules25235511. [PMID: 33255548 PMCID: PMC7728155 DOI: 10.3390/molecules25235511] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 02/03/2023] Open
Abstract
The aim of this study was to determine the effect of gold and silver nanoparticles on the activity of antioxidant enzymes (ascorbate peroxidase (APX), superoxide dismutase (SOD), guaiacol peroxidase (POX), and catalase (CAT)), the free radical scavenging capacity, and the total polyphenol capacity of lavender (Lavandula angustifolia Mill.) cultivar “Munstead” propagated in vitro. In the experiment, fragments of lavender plants were cultivated in vitro on medium with the addition of 1, 2, 5, 10, 20, and 50 mg∙dm−3 of AgNPs or AuNPs (particle sizes 24.2 ± 2.4 and 27.5 ± 4.8 nm, respectively). It was found that the nanoparticles increase the activity of the antioxidant enzymes APX and SOD; however, the reaction depends on the NP concentration. The highest APX activity is found in plants propagated on media with 2 and 5 mg∙dm−3 of AgNPs. AuNPs significantly increase the APX activity when added to media with a concentration of 10 mg∙dm−3. The highest SOD activity is recorded at 2 and 5 mg∙dm−3 AgNP and AuNP concentrations. The addition of higher concentrations of nanoparticles to culture media results in a decrease in the APX and SOD activity. The addition of AuNPs to culture media at concentrations from 2 to 50 mg∙dm−3 increases the POX activity in comparison to its activity when AgNPs are added to the culture media. No significant influence of NPs on the increase in CAT activity was demonstrated. AgNPs and AuNPs increased the free radical scavenging capacity (ABTS•+). The addition of NPs at concentrations of 2 and 5 mg∙dm−3 increased the production of polyphenols; however, in lower concentrations it decreased their content in lavender tissues.
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Tiwari AK, Gupta MK, Pandey G, Narayan RJ, Pandey PC. Molecular weight of polyethylenimine-dependent transfusion and selective antimicrobial activity of functional silver nanoparticles. JOURNAL OF MATERIALS RESEARCH 2020; 35:2405-2415. [PMID: 33424108 PMCID: PMC7776303 DOI: 10.1557/jmr.2020.183] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/29/2020] [Indexed: 05/07/2023]
Abstract
Synthetic cationic polymer-mediated synthesis of silver nanoparticles and selective antimicrobial activity of the same were demonstrated. Polyethyleneimine (PEI)-coated silver nanoparticles showed antimicrobial activity against Acinetobacter baumannii as a function of the polymeric molecular weight (MW) of PEI. Silver nanoparticles were coated with PEI of three different MWs: Ag-NP-1 with PEI exhibiting a MW of 750,000, Ag-NP-2 with PEI exhibiting a MW of 1300, and Ag-NP-3 with PEI exhibiting a MW of 60,000. These nanoparticles showed a particle size distribution of 4-20 nm. The nanoparticles exhibited potent antimicrobial activity against A. baumannii, with the minimum inhibitory concentration of Ag-NP-1, Ag-NP-2, and Ag-NP-3 on the order of 5, 10, and 5 μg/mL, respectively, and minimum bactericidal concentration of Ag-NP-1, Ag-NP-2, and Ag-NP-3 on the order of 10, 20, and 10 μg/mL, respectively. Fluorescence imaging of Ag-NPs revealed selective transfusion of Ag-NPs across the cell membrane as a function of the polymeric MW; differential interaction of the cytoplasmic proteins during antimicrobial activity was observed.
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Affiliation(s)
- Atul Kumar Tiwari
- Department of Chemistry, Indian Institute of Technology, Varanasi, Uttar Pradesh 221005 India
| | - Munesh Kumar Gupta
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221005 India
| | - Govind Pandey
- Department of Pediatrics, King George Medical University, Lucknow, Uttar Pradesh 226003 India
| | - Roger J. Narayan
- Department of Biomedical Engineering, North Carolina State University, North Carolina, 27695 USA
| | - Prem C. Pandey
- Department of Chemistry, Indian Institute of Technology, Varanasi, Uttar Pradesh 221005 India
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