51
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Ahmad HS, Ateeb M, Noreen S, Farooq MI, Baig MMFA, Nazar MS, Akhtar MF, Ahmad K, Ayub AR, Shoukat H, Hadi F, Madni A. Biomimetic synthesis and characterization of silver nanoparticles from Dipterygium glaucum extract and its anti-cancerous activities. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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52
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Kandemir H, Cavas L. Green synthesis of silver nanoparticles through green caviar Caulerpa lentillifera and its phytotoxicity on Allium ascolanicum. INORG NANO-MET CHEM 2023. [DOI: 10.1080/24701556.2023.2165683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Hacer Kandemir
- Department of Biotechnology, The Graduate School of Natural and Applied Sciences, Dokuz Eylül University, İzmir, Türkiye
| | - Levent Cavas
- Department of Biotechnology, The Graduate School of Natural and Applied Sciences, Dokuz Eylül University, İzmir, Türkiye
- Department of Chemistry, Faculty of Science, Dokuz Eylül University, İzmir, Türkiye
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53
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Rajamanikandan R, Sasikumar K, Kosame S, Ju H. Optical Sensing of Toxic Cyanide Anions Using Noble Metal Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13020290. [PMID: 36678042 PMCID: PMC9863761 DOI: 10.3390/nano13020290] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 06/12/2023]
Abstract
Water toxicity, one of the major concerns for ecosystems and the health of humanity, is usually attributed to inorganic anions-induced contamination. Particularly, cyanide ions are considered one of the most harmful elements required to be monitored in water. The need for cyanide sensing and monitoring has tempted the development of sensing technologies without highly sophisticated instruments or highly skilled operations for the objective of in-situ monitoring. Recent decades have witnessed the growth of noble metal nanomaterials-based sensors for detecting cyanide ions quantitatively as nanoscience and nanotechnologies advance to allow nanoscale-inherent physicochemical properties to be exploited for sensing performance. Particularly, noble metal nanostructure e-based optical sensors have permitted cyanide ions of nanomolar levels, or even lower, to be detectable. This capability lends itself to analytical application in the quantitative detection of harmful elements in environmental water samples. This review covers the noble metal nanomaterials-based sensors for cyanide ions detection developed in a variety of approaches, such as those based on colorimetry, fluorescence, Rayleigh scattering (RS), and surface-enhanced Raman scattering (SERS). Additionally, major challenges associated with these nano-platforms are also addressed, while future perspectives are given with directions towards resolving these issues.
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54
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Zhou Y. ELECTROCHEMICAL SENSOR FOR SWEAT MONITORING. REV BRAS MED ESPORTE 2023. [DOI: 10.1590/1517-8692202329012022_0412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
ABSTRACT Introduction: Attention is given to developing electrochemical sensors for the rapid and real-time measurement of lactate levels. The synthesis of electrochemical sensors is based on an electrode modified with a nanocomposite. Objective: Analyze an electrochemical sensor's feasibility for sports monitoring sweat in lactate. The Au@CNTs were the main focus of this study. Methods: The Au@CNTs composite was synthesized on the GCE surface and tested under pre-established protocols as a sensor. Results: The shape and structure of the modified electrodes were analyzed using SEM. The results showed that the Au@CNTs nanoparticles in the Au@CNTs nanocomposite were evenly distributed throughout the porous CNTs network. The performance of the developed sensor was measured using cyclic voltammetry and amperometry. The electrochemical biosensor responded linearly to lactate over phosphate buffer solution with a low detection limit and sensitivity. Conclusion: The experiment of this sensor evaluated lactate concentrations in real sweat samples that were exceptionally close to the injection amount, enabling it as an effective biosensor for the detection of lactate in sweat samples. Level of Evidence: Therapeutic Studies - Outcome Investigation.
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Affiliation(s)
- Yanling Zhou
- Guilin University of Aerospace Technology, China
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55
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Duan L, Yan X. SWEAT BIOSENSORS FOR SPORTS MONITORING. REV BRAS MED ESPORTE 2023. [DOI: 10.1590/1517-8692202329012022_0390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
ABSTRACT Introduction: Biometric sweat monitoring is an important tool for optimizing sports training. The possibility of developing a wearable amperometric lactate biosensor using a screen-printed carbon electrode (SPCE) impregnated by Ag nanoparticles (Ag NPs) for sweat determination in sports monitoring is questioned. Objective: To develop a sensor with GCE substrate coated on Ag NPs/SPCE. Methods: FESEM and XRD analysis were used for the morphological and structural characterizations of Ag and SPCE NPs, respectively. Results: FESEM, EDS, and XRD revealed that Ag NPs were uniformly dispersed in SPCE. The electrochemical biosensor responded linearly to lactate in phosphate buffer solutions, with detection and sensitivity limits of 1.2 µM and 14.2 mAcm-2 mM-1, respectively. Conclusion: The results suggest that Ag NPs/SPCE can be used to continuously monitor lactate levels in sweat as a practical and reliable biosensor for use. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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Affiliation(s)
- Liang Duan
- College of Shandong Sport University, China
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56
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Zahmatkesh S, Hajiaghaei-Keshteli M, Bokhari A, Sundaramurthy S, Panneerselvam B, Rezakhani Y. Wastewater treatment with nanomaterials for the future: A state-of-the-art review. ENVIRONMENTAL RESEARCH 2023; 216:114652. [PMID: 36309214 DOI: 10.1016/j.envres.2022.114652] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/20/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
Aquatic and terrestrial ecosystems are both threatened by toxic wastewater. The unique properties of nanomaterials are currently being studied thoroughly for treating sewage. Nanomaterials also have the advantage of being capable of removing organic matter, fungi, and viruses from wastewater. Advanced oxidation processes are used in nanomaterials to treat wastewater. Additionally, nanomaterials have a large effective area of contact due to their tiny dimensions. The adsorption and reactivity of nanomaterials are strong. Wastewater treatment would benefit from the development of nanomaterial technology. Second, the paper provides a comprehensive analysis of the unique characteristics of nanomaterials in wastewater treatment, their proper use, and their prospects. In addition to focusing on their economic feasibility, since limited forms of nanomaterials have been manufactured, it is also necessary to consider their feasibility in terms of their technical results. According to this study, the significant adsorption area, excellent chemical reaction, and electrical conductivity of nanoparticles (NPs) contribute to the successful treatment of wastewater.
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Affiliation(s)
- Sasan Zahmatkesh
- Tecnologico de Monterrey, Escuela de Ingenieríay Ciencias, Puebla, Mexico.
| | | | - Awais Bokhari
- Sustainable Process Integration Laboratory, SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology, VUT Brno Technická 2896/2, 616 00, Brno, Czech Republic
| | - Suresh Sundaramurthy
- Department of Chemical Engineering, Maulana Azad National Institute of Technology Bhopal, 462 003, Madhya Pradesh, India
| | | | - Yousof Rezakhani
- Department of Civil Engineering, Pardis Branch, Islamic Azad University, Pardis, Iran
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57
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Lai Y, Zhu S, Li J, Zhang Funding H, Qi T. One-step synthesis of micro-sized flake silver particles as electrically conductive adhesive fillers in printed electronics. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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58
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Marine Collagen-Based Antibacterial Film Reinforced with Graphene and Iron Oxide Nanoparticles. Int J Mol Sci 2022; 24:ijms24010648. [PMID: 36614090 PMCID: PMC9820399 DOI: 10.3390/ijms24010648] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/24/2022] [Accepted: 12/27/2022] [Indexed: 01/01/2023] Open
Abstract
It has become more widely available to use biopolymer-based films as alternatives to conventional plastic-based films due to their non-toxic properties, flexibility, and affordability. However, they are limited in application due to deficiencies in their properties. The marine collagen was the specimen for the present study. Thus, the main objective was to reinforce marine collagen-based films with 1.0% (w/w of the dry polymer weight) of iron oxide nanoparticles (IO-NPs), graphene oxide nanoparticles (GO-NPs), or a combination of both oxides (GO-NPs/IO-NPs) as antibacterial and antioxidant additives to overcome some of the limitations of the film. In this way, the nanoparticles were incorporated into the film-forming solution (2% w/v in acetic acid, 0.05 M) and processed by casting. Thereafter, the films were dried and analyzed for their physicochemical, mechanical, microstructural, and functional properties. The results show that the effective combination of GO-NPs/IO-NPs enhanced the physicochemical properties by increasing the water contact angle (WCA) of the films from 77.2 to 84.4° and their transparency (T) from 0.5 to 5.2. Furthermore, these nanoparticles added antioxidant and antibacterial value to the films, with free radical inhibition of up to 95.8% and 23.8 mm of bacteria growth inhibition (diameter). As a result, both types of nanoparticles are proposed as suitable additives to be incorporated into films and enhance their different properties.
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59
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Magdy G, Aboelkassim E, El-Domany RA, Belal F. Green synthesis, characterization, and antimicrobial applications of silver nanoparticles as fluorescent nanoprobes for the spectrofluorimetric determination of ornidazole and miconazole. Sci Rep 2022; 12:21395. [PMID: 36496441 PMCID: PMC9741645 DOI: 10.1038/s41598-022-25830-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
A green and simple method was proposed for the synthesis of silver nanoparticles (Ag-NPs) using Piper cubeba seed extract as a reducing agent for the first time. The prepared Ag-NPs were characterized using different spectroscopic and microscopic techniques. The obtained Ag-NPs showed an emission band at 320 nm when excited at 280 nm and exhibited strong green fluorescence under UV-light. The produced Ag-NPs were used as fluorescent nanosensors for the spectrofluorimetric determination of ornidazole (ONZ) and miconazole nitrate (MIZ) based on their quantitative quenching of Ag-NPs native fluorescence. The current study introduces the first spectrofluorimetric method for the determination of the studied drugs using Ag-NPs without the need for any pre-derivatization steps. Since the studied drugs don't exhibit native fluorescent properties, the importance of the proposed study is magnified. The proposed method displayed a linear relationship between the fluorescence quenching and the concentrations of the studied drugs over the range of 5.0-80.0 µM and 20.0-100.0 µM with limits of detection (LOD) of 0.35 µM and 1.43 µM for ONZ and MIZ, respectively. The proposed method was applied for the determination of ONZ and MIZ in different dosage forms and human plasma samples with high % recoveries and low % RSD values. The developed method was validated according to ICH guidelines. Moreover, the synthesized Ag-NPs demonstrated significant antimicrobial activities against three different bacterial strains and one candida species. Therefore, the proposed method may hold potential applications in the antimicrobial therapy and related mechanism research.
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Affiliation(s)
- Galal Magdy
- grid.411978.20000 0004 0578 3577Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33511, Kafrelsheikh, Egypt
| | - Eman Aboelkassim
- grid.411978.20000 0004 0578 3577Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33511, Kafrelsheikh, Egypt
| | - Ramadan A. El-Domany
- grid.411978.20000 0004 0578 3577Microbiology and Immunology Department, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33511, Kafrelsheikh, Egypt
| | - Fathalla Belal
- grid.10251.370000000103426662Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, P.O. Box 35516, Mansoura, Egypt
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60
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Wei Z, Li K, Wang S, Wen L, Xu L, Wang Y, Chen Z, Li W, Qiu H, Li X, Chen J. Controllable AgNPs encapsulation to construct biocompatible and antibacterial titanium implant. Front Bioeng Biotechnol 2022; 10:1056419. [PMID: 36532588 PMCID: PMC9747934 DOI: 10.3389/fbioe.2022.1056419] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/16/2022] [Indexed: 08/29/2023] Open
Abstract
Silver nanoparticles (AgNPs) are progressively becoming an in-demand material for both medical and life use due to their effective antimicrobial properties. The high surface area-to-volume ratio endows AgNPs with enhanced antibacterial capacity accompanied by inevitable cytotoxicity. Surface coating technique could precisely regulate the particle shape, aggregation, and Ag+ release pattern of AgNPs, by which the cytotoxicity could be significantly reduced. Various coating methods have been explored to shell AgNPs, but it remains a great challenge to precisely control the aggregation state of AgNPs and their shell thickness. Herein, we proposed a simple method to prepare a tunable polydopamine (pDA) coating shell on AgNPs just by tuning the reaction pH and temperature, yet we obtained high antibacterial property and excellent biocompatibility. SEM and TEM revealed that pDA coated AgNPs can form core-shell structures with different aggregation states and shell thickness. Both in vitro and in vivo antibacterial tests show that acid condition and heat-treatment lead to appropriate AgNPs cores and pDA shell structures, which endow Ti with sustained antibacterial properties and preferable cell compatibility. One month of implantation in an infected animal model demonstrated that the obtained surface could promote osteogenesis and inhibit inflammation due to its strong antibacterial properties. Therefore, this study provides a promising approach to fabricate biocompatible antibacterial surface.
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Affiliation(s)
- Zhangao Wei
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Kexin Li
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Shuang Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Lan Wen
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Linghan Xu
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Yankai Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Zirui Chen
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Wei Li
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Hua Qiu
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Xiangyang Li
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Jialong Chen
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
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61
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Xie KX, Li Z, Fang JH, Cao SH, Li YQ. Au-Ag Alloy Nanoshuttle Mediated Surface Plasmon Coupling for Enhanced Fluorescence Imaging. BIOSENSORS 2022; 12:bios12111014. [PMID: 36421131 PMCID: PMC9688416 DOI: 10.3390/bios12111014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 05/27/2023]
Abstract
Surface plasmon-coupled emission (SPCE), a novel signal enhancement technology generated by the interactions between surface plasmons and excited fluorophores in close vicinity to metallic film, has shown excellent performance in bioimaging. Variable-angle nanoplasmonic fluorescence microscopy (VANFM), based on an SPCE imaging system, can selectively modulate the imaging depth by controlling the excitation angles. In order to further improve the imaging performance, Au-Ag alloy nanoshuttles were introduced into an Au substrate to mediate the plasmonic properties. Benefiting from the strong localized plasmon effect of the modified SPCE chip, better imaging brightness, signal-to-background ratio and axial resolution for imaging of the cell membrane region were obtained, which fully displays the imaging advantages of SPCE system. Meanwhile, the imaging signal obtained from the critical angle excitation mode was also amplified, which helps to acquire a more visible image of the cell both from near- and far-field in order to comprehensively investigate the cellular interactions.
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Affiliation(s)
- Kai-Xin Xie
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, China
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhao Li
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jia-Hua Fang
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shuo-Hui Cao
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Department of Electronic Science, Xiamen University, Xiamen 361005, China
| | - Yao-Qun Li
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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62
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Biosynthesis of silver nanoparticles for biomedical applications: A mini review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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63
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Ren R, Lim C, Li S, Wang Y, Song J, Lin TW, Muir BW, Hsu HY, Shen HH. Recent Advances in the Development of Lipid-, Metal-, Carbon-, and Polymer-Based Nanomaterials for Antibacterial Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213855. [PMID: 36364631 PMCID: PMC9658259 DOI: 10.3390/nano12213855] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/28/2022] [Accepted: 10/28/2022] [Indexed: 05/29/2023]
Abstract
Infections caused by multidrug-resistant (MDR) bacteria are becoming a serious threat to public health worldwide. With an ever-reducing pipeline of last-resort drugs further complicating the current dire situation arising due to antibiotic resistance, there has never been a greater urgency to attempt to discover potential new antibiotics. The use of nanotechnology, encompassing a broad range of organic and inorganic nanomaterials, offers promising solutions. Organic nanomaterials, including lipid-, polymer-, and carbon-based nanomaterials, have inherent antibacterial activity or can act as nanocarriers in delivering antibacterial agents. Nanocarriers, owing to the protection and enhanced bioavailability of the encapsulated drugs, have the ability to enable an increased concentration of a drug to be delivered to an infected site and reduce the associated toxicity elsewhere. On the other hand, inorganic metal-based nanomaterials exhibit multivalent antibacterial mechanisms that combat MDR bacteria effectively and reduce the occurrence of bacterial resistance. These nanomaterials have great potential for the prevention and treatment of MDR bacterial infection. Recent advances in the field of nanotechnology are enabling researchers to utilize nanomaterial building blocks in intriguing ways to create multi-functional nanocomposite materials. These nanocomposite materials, formed by lipid-, polymer-, carbon-, and metal-based nanomaterial building blocks, have opened a new avenue for researchers due to the unprecedented physiochemical properties and enhanced antibacterial activities being observed when compared to their mono-constituent parts. This review covers the latest advances of nanotechnologies used in the design and development of nano- and nanocomposite materials to fight MDR bacteria with different purposes. Our aim is to discuss and summarize these recently established nanomaterials and the respective nanocomposites, their current application, and challenges for use in applications treating MDR bacteria. In addition, we discuss the prospects for antimicrobial nanomaterials and look forward to further develop these materials, emphasizing their potential for clinical translation.
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Affiliation(s)
- Ruohua Ren
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Chiaxin Lim
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
- Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
| | - Shiqi Li
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Yajun Wang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jiangning Song
- Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
| | - Tsung-Wu Lin
- Department of Chemistry, Tunghai University, No.1727, Sec.4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan
| | | | - Hsien-Yi Hsu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong 518057, China
| | - Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
- Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
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64
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Ali SG, Jalal M, Ahmad H, Sharma D, Ahmad A, Umar K, Khan HM. Green Synthesis of Silver Nanoparticles from Camellia sinensis and Its Antimicrobial and Antibiofilm Effect against Clinical Isolates. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6978. [PMID: 36234319 PMCID: PMC9570907 DOI: 10.3390/ma15196978] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/09/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
The green synthesis method of was used for the synthesis of silver nanoparticles using Camellia sinensis (green tea). The Camellia sinensis silver nanoparticles (CS-AgNPs) were characterized using different techniques, including UV-Vis (ultra violet-visible), SEM (scanning electron microscopy), TEM (transmission electron microscopy), and XRD (X-ray diffraction). The average size of the CS-AgNPs was 52 nm, according to TEM. The CS-AgNPs showed excellent antibacterial and antifungal activity. The MIC (minimum inhibitory concentration) against bacterial isolates varied from 31.25 to 62.5 µg/mL, whereas for fungal isolates, the MIC varied from 125 to 250 µg/mL. The presence of a zone in the well diffusion assay showed the antimicrobial nature of CS-AgNPs. Further, CLSM (confocal laser scanning microscopy) showed that CS-AgNPs possess antibiofilm activity. The interaction of CS-AgNPs with the Candidal cells was analyzed using TEM, and it was revealed that CS-AgNPs entered the cell and disrupted the cell machinery.
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Affiliation(s)
- Syed Ghazanfar Ali
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh 202002, India
| | - Mohammad Jalal
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh 202002, India
| | - Hilal Ahmad
- SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Diwakar Sharma
- Department of Civil Engineering, Aligarh Muslim University, Aligarh 202002, India
| | - Akil Ahmad
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Khalid Umar
- School of Chemical Sciences, University Sains Malaysia, Gelugor 11800, Malaysia
| | - Haris Manzoor Khan
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh 202002, India
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65
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Mendes Hacke AC, Lima D, Kuss S. Green synthesis of electroactive nanomaterials by using plant-derived natural products. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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66
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Kubavat K, Trivedi P, Ansari H, Kongor A, Panchal M, Jain V, Sindhav G. Green synthesis of silver nanoparticles using dietary antioxidant rutin and its biological contour. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2022. [DOI: 10.1186/s43088-022-00297-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Dietary and wholesome antioxidant rutin is considered advantageous due to its potential protective role for numerous diseases related to oxidative stress, high safety, cost-effectiveness, and extensive biological effects. The present study accounts for an expeditious method for the synthesis of silver nanoparticles (AgNPs) using rutin.
Results
The presence of AgNPs was affirmed by UV–visible spectroscopy at 425 nm, and FESEM and zeta sizer analysis revealed the average size of the AgNPs 80–85 nm and 160 d.nm, respectively. Zeta potential measurements (− 30.3 mV) showed that the AgNPs have reasonably good stability. Element mapping analysis of the AgNPs was confirmed by XRD and AFM, while FTIR spectra of the AgNPs showed the existence of functional groups. In the DPPH assay, highest radical scavenging activity of AgNPs, 86.95 ± 01.60%, was confirmed. The interaction of AgNPs with CT-DNA and HS-DNA was studied spectrophotometrically, and the data display a shift in the respective spectra. Furthermore, interaction with pBR322 DNA, λ DNA, CT-DNA, and HS-DNA was deliberated by a nicking assay that shows the physicochemical properties of AgNPs. Antibacterial activity was evaluated by the standard well-diffusion method against Escherichia coli and Staphylococcus aureus, and cytotoxicity was assessed against human WBCs by MTT assay.
Conclusion
As per this appraisal, it can be concluded that it is a cost-effective, simple, and eco-friendly tactic and such NPs are beneficial to improve therapeutics since the antioxidant, DNA interaction, antibacterial, and cytotoxic exploits offer a new horizon of euthenics.
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Palomino L, Chipoco Haro DA, Gakiya-Teruya M, Zhou F, La Rosa-Toro A, Krishna V, Rodriguez-Reyes JCF. Polyhydroxy Fullerenes Enhance Antibacterial and Electrocatalytic Activity of Silver Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3321. [PMID: 36234449 PMCID: PMC9565599 DOI: 10.3390/nano12193321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Silver nanoparticles (AgNPs) are known and widely used for their antibacterial properties. However, the ever-increasing resistance of microorganisms compels the design of novel nanomaterials which are able to surpass their capabilities. Herein, we synthesized silver nanoparticles using, for the first time, polyhydroxy fullerene (PHF) as a reducing and capping agent, through a one-pot synthesis method. The resulting nanoparticles (PHF-AgNPs) were compared to AgNPs that were synthesized using sodium citrate (citrate-AgNPs). They were characterized using high-resolution transmission electron microscopy (HR-TEM), dynamic light scattering, and UV-visible spectroscopy. Our results showed that PHF-AgNPs have a smaller size and a narrower size distribution than citrate-AgNPs, which suggests that PHF may be a better capping agent than citrate. Antibacterial assays using E. coli showed enhanced antimicrobial activity for PHF-AgNPs compared to citrate-AgNPs. The electrocatalytic activity of nanoparticles towards oxygen evolution and reduction reaction (OER and ORR, respectively) was tested through cyclic voltammetry. Both nanoparticles are found to promote OER and ORR, but PHF-AgNPs showed a significant increase in activity with respect to citrate-AgNPs. Thus, our results demonstrate that the properties of forming nanoparticles can be tuned by choosing the appropriate reducing/capping agent. Specifically, this suggests that PHF-AgNPs can find potential applications for both catalytic and biomedical applications.
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Affiliation(s)
- Luis Palomino
- Laboratory of Nanoscience and Applications—NASCA, Universidad de Ingenieria y Tecnologia—UTEC, 165 Medrano Silva, Barranco, Lima 15063, Peru
- Centro de Investigacion en Bioingenieria—BIO, Universidad de Ingenieria y Tecnologia—UTEC, 165 Medrano Silva, Barranco, Lima 15063, Peru
| | - Danae A. Chipoco Haro
- Laboratory of Nanoscience and Applications—NASCA, Universidad de Ingenieria y Tecnologia—UTEC, 165 Medrano Silva, Barranco, Lima 15063, Peru
| | - Miguel Gakiya-Teruya
- Laboratory of Nanoscience and Applications—NASCA, Universidad de Ingenieria y Tecnologia—UTEC, 165 Medrano Silva, Barranco, Lima 15063, Peru
| | - Feng Zhou
- Department of Biomedical Engineering, Cleveland Clinic, Lerner Research Institute, Cleveland, OH 44106, USA
| | - Adolfo La Rosa-Toro
- Laboratorio de Investigacion de Electroquimica Aplicada, Facultad de Ciencias, Universidad Nacional de Ingenieria, Av. Tupac Amaru 210, Rimac, Lima 15333, Peru
| | - Vijay Krishna
- Department of Biomedical Engineering, Cleveland Clinic, Lerner Research Institute, Cleveland, OH 44106, USA
| | - Juan Carlos F. Rodriguez-Reyes
- Laboratory of Nanoscience and Applications—NASCA, Universidad de Ingenieria y Tecnologia—UTEC, 165 Medrano Silva, Barranco, Lima 15063, Peru
- Centro de Investigacion en Bioingenieria—BIO, Universidad de Ingenieria y Tecnologia—UTEC, 165 Medrano Silva, Barranco, Lima 15063, Peru
- Department of Chemical Engineering, Universidad de Ingeniería y Tecnología—UTEC, 165 Medrano Silva, Barranco, Lima 15063, Peru
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Alvarez-Amparán MA, Martínez-Cornejo V, Cedeño-Caero L, Hernandez-Hernandez KA, Cadena-Nava RD, Alonso-Núñez G, Moyado SF. Characterization and photocatalytic activity of TiO2 nanoparticles on cotton fabrics, for antibacterial masks. APPLIED NANOSCIENCE 2022; 12:4019-4032. [PMID: 36124253 PMCID: PMC9476449 DOI: 10.1007/s13204-022-02634-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022]
Abstract
The in-situ impregnation of two commercial cotton fabrics (lab coat and Indiolino) with TiO2 nanoparticles (TiO2-NPs) was carried out. For this, two commercial cotton fabrics were dipped in titanium isopropoxide, titanium butoxide and titanium tetrachloride solutions to the TiO2-NPs formation and in-situ TiO2-NPs impregnation on the cotton fabric surface by the sonochemical, hydrothermal and solvothermal methods, respectively. The impregnated fabrics were characterized by ATR-FTIR, SEM–EDS, Raman, UV–Vis, DRS and tension tests. The results showed the successful formation and impregnation of TiO2-NPs on both cotton fabrics. The leaching of TiO2-NPs from cotton fabrics was negligible after several washing cycles. The self-cleaning properties and antibacterial activity of TiO2-NPs functionalized cotton fabrics were assessed by photocatalytic and antibacterial tests. The photocatalytic activity was determined by the degradation of methylene blue dye under UV and solar irradiation. The materials showed good photoactivity, since MB was degraded up to 99% under solar and UV irradiations in 60 min. The bactericidal capacity of the TiO2-NPs on fabrics, evaluated in-situ by SEM, showed that Indiolino presented the best antibacterial properties against Escherichia coli and Bacillus pumilus.
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Ahmad M, Ali A, Ullah Z, Sher H, Dai DQ, Ali M, Iqbal J, Zahoor M, Ali I. Biosynthesized silver nanoparticles using Polygonatum geminiflorum efficiently control fusarium wilt disease of tomato. Front Bioeng Biotechnol 2022; 10:988607. [PMID: 36159677 PMCID: PMC9493356 DOI: 10.3389/fbioe.2022.988607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Nanomaterials are gaining tremendous potential as emerging antimicrobials in the quest to find resistance-free alternatives of chemical pesticides. In this study, stable silver nanoparticles were synthesized using the aqueous extract of medicinal plant species Polygonatum geminiflorum, and their morphological features were evaluated by transmission electron microscopy, X-ray diffraction spectroscopy and energy dispersive X-ray analysis. In vitro Antifungal activity of the synthesized silver nanoparticles (AgNPs) and P. geminiflorum extract (PE) either alone or in combination (PE-AgNPs) against Fusarium oxysporum was evaluated using disc-diffusion and well-diffusion methods. In planta assay of the same treatments against Fusarium wilt diseases of tomato was evaluated by foliar spray method. Moreover, plant extract was evaluated for the quantitative investigation of antioxidant activity, phenolics and flavonoids by spectroscopic and HPLC techniques. Phytochemical analysis indicated the presence of total phenolic and flavonoid contents as 48.32 mg ± 1.54 mg GAE/g and 57.08 mg ± 1.36 mg QE/g, respectively. The DPPH radical scavenging of leaf extract was found to be 88.23% ± 0.87%. Besides, the HPLC phenolic profile showed the presence of 15 bioactive phenolic compounds. Characterization of nanoparticles revealed the size ranging from 8 nm to 34 nm with average crystallite size of 27 nm. The FTIR analysis revealed important functional groups that were responsible for the reduction and stabilization of AgNPs. In the in vitro assays, 100 μg/ml of AgNPs and AgNPs-PE strongly inhibited Fusarium oxysporum. The same treatments tested against Fusarium sprayed on tomato plants in controlled environment exhibited nearly 100% plant survival with no observable phytotoxicity. These finding provide a simple baseline to control Fusarium wilt using silver nano bio-control agents without affecting the crop health.
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Affiliation(s)
- Maaz Ahmad
- Center for Yunnan Plateau Biological Resources Protection and Utilization, Yunnan Engineering Research Center of Fruit Wine, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan, China
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Ahmad Ali
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Zahid Ullah
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Hassan Sher
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Dong-Qin Dai
- Center for Yunnan Plateau Biological Resources Protection and Utilization, Yunnan Engineering Research Center of Fruit Wine, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan, China
- *Correspondence: Iftikhar Ali, ; Dong-Qin Dai,
| | - Mohammad Ali
- Centre for Biotechnology and Microbiology, University of Swat, Charbagh, Swat, Pakistan
| | - Javed Iqbal
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Zahoor
- Department of Biochemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Iftikhar Ali
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- *Correspondence: Iftikhar Ali, ; Dong-Qin Dai,
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Landeros-Páramo L, Saavedra-Molina A, Gómez-Hurtado MA, Rosas G. The effect of AgNPS bio-functionalization on the cytotoxicity of the yeast Saccharomyces cerevisiae. 3 Biotech 2022; 12:196. [PMID: 35928500 PMCID: PMC9343563 DOI: 10.1007/s13205-022-03276-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/21/2022] [Indexed: 11/29/2022] Open
Abstract
This work used Sedum praealtum leaf extract to synthesize silver nanoparticles (AgNPs) in a single step. The cytotoxicity of AgNPs was studied with the yeast Saccharomyces cerevisiae W303-1. In addition, the antioxidant activity of the DPPH radical was studied both in the extract of S. praealtum and in the AgNPs. UV-Vis spectroscopy determined the presence of AgNPs by the location of the surface plasmon resonance (SPR) band at 434 nm. TEM and XRD analyzes show AgNPs with fcc structure and hemispherical morphology. Also, AgNPs range in size from 5 to 25 nm and have an average size of 14 nm. 1H NMR, FTIR, and UV-Vis spectroscopy techniques agreed that glycosidic compounds were the main phytochemical components responsible for the reduction and stabilization of AgNPs. In addition, AgNPs presented a maximum of 12% toxicity in yeast attributed to the generation of ROS. Consequently, there was low bioactivity because glycoside compounds cover the biosynthesized AgNPs from S. praealtum. These findings allow applications of AgNPs involving contact with mammals and higher organisms.
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Affiliation(s)
- L. Landeros-Páramo
- Instituto de Investigación en Metalurgia y Materiales, UMSNH, Edificio U., Ciudad Universitaria, C.P. 58030 Morelia, Michoacán México
| | - A. Saavedra-Molina
- Instituto de Investigaciones Químico Biológicas, UMSNH, edificio B-3., Ciudad Universitaria, C.P. 58030 Morelia, Michoacán México
| | - Mario A. Gómez-Hurtado
- Instituto de Investigaciones Químico Biológicas, UMSNH, edificio B-3., Ciudad Universitaria, C.P. 58030 Morelia, Michoacán México
| | - G. Rosas
- Instituto de Investigación en Metalurgia y Materiales, UMSNH, Edificio U., Ciudad Universitaria, C.P. 58030 Morelia, Michoacán México
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Padilla-Camberos E, Juárez-Navarro KJ, Sanchez-Hernandez IM, Torres-Gonzalez OR, Flores-Fernandez JM. Toxicological Evaluation of Silver Nanoparticles Synthesized with Peel Extract of Stenocereus queretaroensis. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5700. [PMID: 36013835 PMCID: PMC9413338 DOI: 10.3390/ma15165700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/05/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Silver nanoparticles (AgNPs) synthesized with plants are widely used in different industries, such as the medical, industrial, and food industries; however, their hazards and risks remain unclear. Here, we aimed to evaluate the toxicological effects of AgNPs in both in vitro and in vivo models. Previously, we developed and characterized green synthesized AgNPs based on Stenocereus queretaroensis (S. queretaroensis). The present study evaluates the toxicity of these AgNPs through cytotoxicity and mutagenicity tests in vitro, as well as genotoxicity tests, including the evaluation of acute oral, dermal, and inhalation toxicity, along with dermal and ocular irritation, in vivo, according to guidelines of The Organization for Economic Co-operation and Development (OECD). We evaluated cell cytotoxicity in L929 cells, and the half-maximal inhibitory concentration was 134.76 µg/mL. AgNPs did not cause genotoxic or mutagenic effects. Furthermore, in vivo oral, dermal, and acute inhalation toxicity results did not show any adverse effects or mortality in the test animals, and after the dermal and ocular irritation assessments, the in vivo models did not exhibit irritation or corrosion. Therefore, the results show that these previously synthesized S. queretaroensis AgNPs do not represent a risk at the tested concentrations; however, little is known about the effects that AgNPs induce on physiological systems or the possible risk following long-term exposure.
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Affiliation(s)
- Eduardo Padilla-Camberos
- Unit of Medical and Pharmaceutical Biotechnology, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Normalistas 800, Guadalajara 44270, Jalisco, Mexico
| | - Karen J. Juárez-Navarro
- Unit of Medical and Pharmaceutical Biotechnology, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Normalistas 800, Guadalajara 44270, Jalisco, Mexico
| | - Ivan Moises Sanchez-Hernandez
- Unit of Medical and Pharmaceutical Biotechnology, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Normalistas 800, Guadalajara 44270, Jalisco, Mexico
| | - Omar Ricardo Torres-Gonzalez
- Unit of Medical and Pharmaceutical Biotechnology, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Normalistas 800, Guadalajara 44270, Jalisco, Mexico
| | - Jose Miguel Flores-Fernandez
- Department of Biochemistry & Centre for Prions and Protein Folding Diseases, University of Alberta, 204 Brain and Aging Research Building, Edmonton, AB T6G 2M8, Canada
- Department of Research and Innovation, Universidad Tecnológica de Oriental, de la No. 3402, Calle 37 Nte., Oriental 75020, Puebla, Mexico
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Imchen P, Ziekhrü M, Zhimomi BK, Phucho T. Biosynthesis of silver nanoparticles using the extract of Alpinia galanga rhizome and Rhus semialata fruit and their antibacterial activity. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109599] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ramakrishnan RK, Silvestri D, Sumitha NS, Nguyen NHA, Havlíček K, Łukowiec D, Wacławek S, Černík M, Tiwari D, Padil VVT, Varma RS. Gum Hydrocolloids Reinforced Silver Nanoparticle Sponge for Catalytic Degradation of Water Pollutants. Polymers (Basel) 2022; 14:polym14153120. [PMID: 35956636 PMCID: PMC9370489 DOI: 10.3390/polym14153120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 11/29/2022] Open
Abstract
The accumulation of organic contaminants including dyes in aquatic systems is of significant environmental concern, necessitating the development of affordable and sustainable materials for the treatment/elimination of these hazardous pollutants. Here, a green synthesis strategy has been used to develop a self-assembled gum kondagogu-sodium alginate bioconjugate sponge adorned with silver nanoparticles, for the first time. The properties of the nanocomposite sponge were then analyzed using FTIR, TGA, SEM, and MicroCT. The ensued biobased sponge exhibited hierarchical microstructure, open cellular pores, good shape memory, and mechanical properties. It merges the attributes of an open cellular porous structure with metal nanoparticles and are envisaged to be deployed as a sustainable catalytic system for reducing contaminants in the aqueous environment. This nanocomposite sponge showed enhanced catalytic effectiveness (km values up to 37 min−1 g−1 and 44 min−1 g−1 for methylene blue and 4-nitrophenol, respectively), antibacterial properties, reusability, and biodegradability (65% biodegradation in 28 days).
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Affiliation(s)
- Rohith K. Ramakrishnan
- Institute for Nanomaterials, Advanced Technologies and Innovation (C × I), Technical University of Liberec (TUL), Studentská 1402/2, 461 17 Liberec, Czech Republic; (R.K.R.); (D.S.); (N.H.A.N.); (K.H.); (S.W.); (M.Č.)
| | - Daniele Silvestri
- Institute for Nanomaterials, Advanced Technologies and Innovation (C × I), Technical University of Liberec (TUL), Studentská 1402/2, 461 17 Liberec, Czech Republic; (R.K.R.); (D.S.); (N.H.A.N.); (K.H.); (S.W.); (M.Č.)
| | - Nechikkottil S. Sumitha
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi 682 022, Kerala, India;
| | - Nhung H. A. Nguyen
- Institute for Nanomaterials, Advanced Technologies and Innovation (C × I), Technical University of Liberec (TUL), Studentská 1402/2, 461 17 Liberec, Czech Republic; (R.K.R.); (D.S.); (N.H.A.N.); (K.H.); (S.W.); (M.Č.)
| | - Karel Havlíček
- Institute for Nanomaterials, Advanced Technologies and Innovation (C × I), Technical University of Liberec (TUL), Studentská 1402/2, 461 17 Liberec, Czech Republic; (R.K.R.); (D.S.); (N.H.A.N.); (K.H.); (S.W.); (M.Č.)
| | - Dariusz Łukowiec
- Materials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18 a St., 44-100 Gliwice, Poland;
| | - Stanisław Wacławek
- Institute for Nanomaterials, Advanced Technologies and Innovation (C × I), Technical University of Liberec (TUL), Studentská 1402/2, 461 17 Liberec, Czech Republic; (R.K.R.); (D.S.); (N.H.A.N.); (K.H.); (S.W.); (M.Č.)
| | - Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovation (C × I), Technical University of Liberec (TUL), Studentská 1402/2, 461 17 Liberec, Czech Republic; (R.K.R.); (D.S.); (N.H.A.N.); (K.H.); (S.W.); (M.Č.)
| | - Diwakar Tiwari
- Department of Chemistry, Mizoram University (A Central University), Aizawal 796004, Mizoram, India;
| | - Vinod V. T. Padil
- Institute for Nanomaterials, Advanced Technologies and Innovation (C × I), Technical University of Liberec (TUL), Studentská 1402/2, 461 17 Liberec, Czech Republic; (R.K.R.); (D.S.); (N.H.A.N.); (K.H.); (S.W.); (M.Č.)
- Correspondence: (V.V.T.P.); (R.S.V.)
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Correspondence: (V.V.T.P.); (R.S.V.)
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Synthesis of Silver Nanoparticles in an Eco-friendly Way using Lannea coromandelica Aqueous Bark Extract. JURNAL KIMIA SAINS DAN APLIKASI 2022. [DOI: 10.14710/jksa.25.6.224-230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this present study, silver nanoparticles (AgNPs) were synthesized through an easy, rapid, and eco-friendly pathway using Lannea coromandelica aqueous bark extract. The obtained AgNPs were characterized using Ultraviolet-Visible (UV-Vis) spectrophotometer, Fourier Transform Infrared (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscope (SEM). The results indicated that the pH of colloidal AgNPs played a vital role in forming AgNPs. The pH ranges used in this study were 6, 8, 10, and 12. The formation of AgNPs was confirmed by observing the surface plasmon resonance (SPR) band at each pH and obtaining a wavelength of 430.50, 419.50, 418.50, and 410.00 nm. A comparison of the FTIR spectra of Lannea coromandelica aqueous bark extract and AgNPs showed the contribution of the O-H group in reducing silver ions. XRD diffractogram showed that AgNPs formed at 2θ = 37.8056o (1 1 1), 44.0345o (2 0 0), 64.3942o (2 2 0), dan 77.5003o (3 1 1) with face-centered cubic (FCC) crystal structure, and the average particle size was 22.5047 nm. SEM results showed that the nanoparticles have a non-uniform and irregular shape.
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Synergistic Antibacterial Activity of Green Synthesized Silver Nanomaterials with Colistin Antibiotic against Multidrug-Resistant Bacterial Pathogens. CRYSTALS 2022. [DOI: 10.3390/cryst12081057] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The high frequency of nosocomial bacterial infections caused by multidrug-resistant pathogens contributes to significant morbidity and mortality worldwide. As a result, finding effective antibacterial agents is of critical importance. Hence, the aim of the present study was to greenly synthesize silver nanoparticles (AgNPs) utilizing Salvia officinalis aqueous leaf extract. The biogenic AgNPs were characterized utilizing different physicochemical techniques such as energy-dispersive X-ray spectroscopy (EDX), ultraviolet-visible spectrophotometry (UV-Vis), X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR) analysis. Additionally, the synergistic antimicrobial effectiveness of the biosynthesized AgNPs with colistin antibiotic against multidrug-resistant bacterial strains was evaluated utilizing the standard disk diffusion assay. The bioformulated AgNPs revealed significant physicochemical features, such as a small particle size of 17.615 ± 1.24 nm and net zeta potential value of −16.2 mV. The elemental mapping of AgNPs revealed that silver was the main element, recording a relative mass percent of 83.16%, followed by carbon (9.51%), oxygen (5.80%), silicon (0.87%), and chloride (0.67%). The disc diffusion assay revealed that AgNPs showed antibacterial potency against different tested bacterial pathogens, recording the highest efficiency against the Escherichia coli strain with an inhibitory zone diameter of 37.86 ± 0.21 mm at an AgNPs concentration of 100 µg/disk. In addition, the antibacterial activity of AgNPs was significantly higher than that of colistin (p ≤ 0.05) against the multidrug resistant bacterial strain namely, Acinetobacter baumannii. The biosynthesized AgNPs revealed synergistic antibacterial activity with colistin antibiotic, demonstrating the highest synergistic percent against the A. baumannii strain (85.57%) followed by Enterobacter cloacae (53.63%), E. coli (35.76%), Klebsiella pneumoniae (35.19%), Salmonella typhimurium (33.06%), and Pseudomonas aeruginosa (13.75%). In conclusion, the biogenic AgNPs revealed unique physicochemical characteristics and significant antibacterial activities against different multidrug-resistant bacterial pathogens. Consequently, the potent synergistic effect of the AgNPs–colistin combination highlights the potential of utilizing this combination for fabrication of highly effective antibacterial coatings in intensive care units for successful control of the spread of nosocomial bacterial infections.
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Green Synthesis of Silver Nanoparticles Using Spent Coffee Ground Extracts: Process Modelling and Optimization. NANOMATERIALS 2022; 12:nano12152597. [PMID: 35957027 PMCID: PMC9370399 DOI: 10.3390/nano12152597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/16/2022] [Accepted: 07/26/2022] [Indexed: 11/21/2022]
Abstract
Large amounts of spent coffee grounds (SCGs) are produced annually worldwide. SCGs contain high levels of phenolics and other bioactive compounds that make them a potential source of reducing and stabilizing agents for the synthesis of metal nanoparticles. This study investigates the use of SCG extracts as a green strategy to produce silver nanoparticles (AgNPs). SCG extracts were obtained using aqueous ethanol as the solvent and then contacted with a silver nitrate solution under the selected conditions. A central composite design coupled with response surface methodology was used to evaluate the effects of solvent composition (C = 30–70% v/v), silver-to-phenolic ratio (R = 3–7 mol/mol), temperature (T = 25–55 °C) and pH (10–12) on the production of AgNPs. Characterization of AgNPs by DLS, TEM and XRD techniques showed that they were highly crystalline with a narrow size distribution. Under optimal reaction conditions, AgNPs with an average size of about 10 nm and a zeta potential of −30.5 to −20.7 mV were obtained. Overall, the results of this study indicate that SCGs are a promising material for the green synthesis of small-sized and stable AgNPs.
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Saengsonachai A, Seekaew Y, Traiwatcharanon P, Wongchoosuk C. Dual functions of alternating current electroluminescent device for light emission and humidity detection. NANOTECHNOLOGY 2022; 33:405202. [PMID: 35767930 DOI: 10.1088/1361-6528/ac7cf5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Alternating current electroluminescent (AC-EL) device can be considered as a potential candidate for next generation of multifunctional light-emitting sources. In this work, we present a new design of AC-EL device with inclusion of a silver oxide humidity-sensing layer instead of an insulating buffer layer for humidity detection. The ZnS:Cu, Cl and ZnS:Ag+(Zn,Cd)S:Ag phosphors were used as an emissive layer prepared by screen printing method. The silver oxide (AgO/Ag2O) nanoparticles synthesized via a green method were employed as a humidity sensing layer. The developed AC-EL devices exhibited high response, good productivity, high stability, high repeatability and linear relationship with humidity in range of 10%-90% RH as well as no significant effects with several VOCs/gases such as NH3, CO2, acetone, methanol, toluene and propan at room temperature. The effects of parameters such as excitation frequency, applied voltage, and waveforms on the luminance intensity are discussed. The development of the present AC-EL device offers a simplified architecture to enable sensing functions of the AC-EL device via monitoring of light emission changing.
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Affiliation(s)
- Alisa Saengsonachai
- Department of Physics, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Yotsarayuth Seekaew
- Department of Physics, Faculty of Science, Ramkhamhaeng University, Bang Kapi, Bangkok 10240, Thailand
| | | | - Chatchawal Wongchoosuk
- Department of Physics, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
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Maruthupandi M, Stairish MJ, Sahila S, Vasimalai N. Ultrasensitive and selective detection of cadmium ions in hair, nail, cigarette and waste water samples using disulfo-stilbenediamine capped silver nanoparticles. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Saleh R, Andiane Hidayat S, Taufik A, Yin S. Removal of multiple pollutants from water using noble Ag/Au/magnetite/graphene/H2O2 system under light and ultrasound irradiation. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Kokila GN, Mallikarjunaswamy C, Ranganatha VL. A review on synthesis and applications of versatile nanomaterials. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2081189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- G. N. Kokila
- Postgraduate Department of Chemistry, JSS College of Arts, Commerce and Science, Mysuru, Karnataka, India
| | - C. Mallikarjunaswamy
- Postgraduate Department of Chemistry, JSS College of Arts, Commerce and Science, Mysuru, Karnataka, India
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81
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Hepatoprotective Effect of Silver Nanoparticles at Two Different Particle Sizes: Comparative Study with and without Silymarin. Curr Issues Mol Biol 2022; 44:2923-2938. [PMID: 35877426 PMCID: PMC9321183 DOI: 10.3390/cimb44070202] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/17/2022] Open
Abstract
Silver nanoparticles have been used for numerous therapeutic purposes because of their increased biodegradability and bioavailability, yet their toxicity remains questionable as they are known to interact easily with biological systems because of their small size. This study aimed to investigate and compare the effect of silver nanoparticles’ particle size in terms of their potential hazard, as well as their potential protective effect in an LPS-induced hepatotoxicity model. Liver slices were obtained from Sprague Dawley adult male rats, and the thickness of the slices was optimized to 150 μm. Under regulated physiological circumstances, freshly cut liver slices were divided into six different groups; GP1: normal, GP2: LPS (control), GP3: LPS + AgNpL (positive control), GP4: LPS + silymarin (standard treatment), GP5: LPS + AgNpS + silymarin (treatment I), GP6: LPS + AgNpL + silymarin (treatment II). After 24 h of incubation, the plates were gently removed, and the supernatant and tissue homogenate were all collected and then subjected to the following biochemical parameters: Cox2, NO, IL-6, and TNF-α. The LPS elicited marked hepatic tissue injury manifested by elevated cytokines and proinflammatory markers. Both small silver nanoparticles and large silver nanoparticles efficiently attenuated LPS hepatotoxicity, mainly via preserving the cytokines’ level and diminishing the inflammatory pathways. In conclusion, large silver nanoparticles exhibited effective hepatoprotective capabilities over small silver nanoparticles.
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82
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Nanomaterials-Based Combinatorial Therapy as a Strategy to Combat Antibiotic Resistance. Antibiotics (Basel) 2022; 11:antibiotics11060794. [PMID: 35740200 PMCID: PMC9220075 DOI: 10.3390/antibiotics11060794] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 01/10/2023] Open
Abstract
Since the discovery of antibiotics, humanity has been able to cope with the battle against bacterial infections. However, the inappropriate use of antibiotics, the lack of innovation in therapeutic agents, and other factors have allowed the emergence of new bacterial strains resistant to multiple antibiotic treatments, causing a crisis in the health sector. Furthermore, the World Health Organization has listed a series of pathogens (ESKAPE group) that have acquired new and varied resistance to different antibiotics families. Therefore, the scientific community has prioritized designing and developing novel treatments to combat these ESKAPE pathogens and other emergent multidrug-resistant bacteria. One of the solutions is the use of combinatorial therapies. Combinatorial therapies seek to enhance the effects of individual treatments at lower doses, bringing the advantage of being, in most cases, much less harmful to patients. Among the new developments in combinatorial therapies, nanomaterials have gained significant interest. Some of the most promising nanotherapeutics include polymers, inorganic nanoparticles, and antimicrobial peptides due to their bactericidal and nanocarrier properties. Therefore, this review focuses on discussing the state-of-the-art of the most significant advances and concludes with a perspective on the future developments of nanotherapeutic combinatorial treatments that target bacterial infections.
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83
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Synergistic Antifungal Efficiency of Biogenic Silver Nanoparticles with Itraconazole against Multidrug-Resistant Candidal Strains. CRYSTALS 2022. [DOI: 10.3390/cryst12060816] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Fungal infections caused by multidrug-resistant strains are considered one of the leading causes of morbidity and mortality worldwide. Moreover, antifungal medications used in conventional antifungal treatment revealed poor therapeutic effectiveness and possible side effects such as hepatotoxicity, nephrotoxicity, and myelotoxicity. Therefore, the current study was developed to determine the antifungal effectiveness of green synthesized silver nanoparticles (AgNPs) and their synergistic efficiency with antifungal drugs against multidrug-resistant candidal strains. The AgNPs were greenly synthesized using the aqueous peel extract of Punica granatum. In addition, AgNPs were characterized using ultraviolet-visible spectrophotometry (UV/Vis), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction analysis (XRD), and zeta potential analysis. In this regard, UV-vis analysis indicated SPR of AgNPs at 396 nm, while the particle size distribution revealed that the average particle size was 18.567 ± 1.46 nm. The surface charge of AgNPs was found to be −15.6 mV, indicating their stability in aqueous solutions. The biofabricated AgNPs indicated antifungal activity against Candida tropicalis, C. albicans, and C. glabrata strains showing inhibitory zone diameters of 23.78 ± 0.63, 21.38 ± 0.58, and 16.53 ± 0.21 mm, respectively while their minimum inhibitory concentration (MIC) was found to be 2.5 µg/mL against C. tropicalis strain. AgNPs and itraconazole revealed the highest synergistic activity against the multidrug-resistant strain, C. glabrata, recording a synergism percentage of 74.32%. In conclusion, the biogenic AgNPs in combination with itraconazole drug exhibited potential synergistic activity against different candidal strains indicating their potential usage in the bioformulation of highly effective antifungal agents.
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84
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Feng F, Hong H, Gao X, Ren T, Ma Y, Feng P. Effectiveness of Oxygen during Sintering of Silver Thin Films Derived by Nanoparticle Ink. NANOMATERIALS 2022; 12:nano12111908. [PMID: 35683763 PMCID: PMC9181983 DOI: 10.3390/nano12111908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/28/2022] [Accepted: 05/29/2022] [Indexed: 12/23/2022]
Abstract
Silver nanoparticle (NP) inks have been widely used in the ink-jet printing field because of their excellent properties during low-temperature sintering. However, the organic dispersant used to prevent the aggregation and sedimentation of NPs can hinder the sintering process and result in the high resistivity of sintered films. In this study, silver thin films derived from silver NP ink with polyvinylpyrrolidone (PVP) dispersant were sintered in different atmospheres of pure nitrogen, air, and pure oxygen. The effect of the oxygen content in the sintering atmosphere on the thermal properties of the ink, the electrical resistivity and microstructure of the sintered films, and the amount of organic residue were studied by using differential scanning calorimetry, the four-point probe method, scanning electron microscopy, Fourier transform infrared spectroscopy, etc. The mechanism of optimizing the film resistivity by influencing the decomposition of the PVP dispersant and the microstructure evolution of the silver thin films through the sintering atmosphere was discussed. The results demonstrated that an oxygen-containing atmosphere could be effective for silver NPs in two ways. First, the oxygen content could enhance the diffusion ability of silver atoms, thus accelerating the stage transition of microstructural evolution at low temperatures. Second, the oxygen content could enable the PVP to decompose at a temperature much lower than in conditions of pure nitrogen, thus helping to finalize the densification of a silver film with a low resistivity of 2.47 μΩ·cm, which is approximately 1.5-fold that of bulk silver. Our findings could serve as a foundation for the subsequent establishment of ink-jet printing equipment and the optimization of the sintering process for printing silver patterns on flexible substrates.
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Affiliation(s)
- Feng Feng
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (F.F.); (H.H.); (T.R.)
| | - Haofeng Hong
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (F.F.); (H.H.); (T.R.)
| | - Xing Gao
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (F.F.); (H.H.); (T.R.)
- Shenzhen Jinzhou Precision Technology Corp., Shenzhen 518116, China
- Correspondence: (X.G.); (P.F.)
| | - Tian Ren
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (F.F.); (H.H.); (T.R.)
| | - Yuan Ma
- Shenzhen Tsingding Technology Co., Ltd., Shenzhen 518133, China;
| | - Pingfa Feng
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (F.F.); (H.H.); (T.R.)
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
- Correspondence: (X.G.); (P.F.)
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85
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Marinescu L, Ficai D, Ficai A, Oprea O, Nicoara AI, Vasile BS, Boanta L, Marin A, Andronescu E, Holban AM. Comparative Antimicrobial Activity of Silver Nanoparticles Obtained by Wet Chemical Reduction and Solvothermal Methods. Int J Mol Sci 2022; 23:ijms23115982. [PMID: 35682664 PMCID: PMC9180968 DOI: 10.3390/ijms23115982] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/07/2022] [Accepted: 05/20/2022] [Indexed: 02/01/2023] Open
Abstract
The synthesis of nanoparticles from noble metals has received high attention from researchers due to their unique properties and their wide range of applications. Silver nanoparticles (AgNPs), in particular, show a remarkable inhibitory effect against microorganisms and viruses. Various methods have been developed to obtain AgNPs, however the stability of such nanostructures over time is still challenging. Researchers attempt to obtain particular shapes and sizes in order to tailor AgNPs properties for specific areas, such as biochemistry, biology, agriculture, electronics, medicine, and industry. The aim of this study was to design AgNPs with improved antimicrobial characteristics and stability. Two different wet chemical routes were considered: synthesis being performed (i) reduction method at room temperatures and (ii) solvothermal method at high temperature. Here, we show that the antimicrobial properties of the obtained AgNPs, are influenced by their synthesis route, which impact on the size and shape of the structures. This work analyses and compares the antimicrobial properties of the obtained AgNPs, based on their structure, sizes and morphologies which are influenced, in turn, not only by the type or quantities of precursors used but also by the temperature of the reaction. Generally, AgNPs obtained by solvothermal, at raised temperature, registered better antimicrobial activity as compared to NPs obtained by reduction method at room temperature.
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Affiliation(s)
- Liliana Marinescu
- Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (O.O.); (A.I.N.); (B.S.V.)
| | - Denisa Ficai
- Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (O.O.); (A.I.N.); (B.S.V.)
| | - Anton Ficai
- Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (O.O.); (A.I.N.); (B.S.V.)
- Academy of Romanian Scientists, Ilfov Street 3, 050054 Bucharest, Romania
| | - Ovidiu Oprea
- Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (O.O.); (A.I.N.); (B.S.V.)
- Academy of Romanian Scientists, Ilfov Street 3, 050054 Bucharest, Romania
| | - Adrian Ionut Nicoara
- Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (O.O.); (A.I.N.); (B.S.V.)
| | - Bogdan Stefan Vasile
- Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (O.O.); (A.I.N.); (B.S.V.)
| | - Laura Boanta
- Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, Faculty of Power Engineering, Politehnica University of Bucharest, 313 Splaiul Independentei, District 6, 060042 Bucharest, Romania; (L.B.); (A.M.)
| | - Alexandru Marin
- Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, Faculty of Power Engineering, Politehnica University of Bucharest, 313 Splaiul Independentei, District 6, 060042 Bucharest, Romania; (L.B.); (A.M.)
| | - Ecaterina Andronescu
- Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (O.O.); (A.I.N.); (B.S.V.)
- Academy of Romanian Scientists, Ilfov Street 3, 050054 Bucharest, Romania
- Correspondence:
| | - Alina-Maria Holban
- Microbiology and Immunology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalelor Lane, District 5, 77206 Bucharest, Romania;
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86
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Elbadawy HA, Khalil SMSM, Al‐Wahaib D, Barakat A, Soliman SM, Eldissouky A. Ag(I)‐mediated hydrolysis of hydrazone to azine; synthesis, X‐ray structure, and biological investigations of two new Ag(I)‐azine complexes. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hemmat A. Elbadawy
- Chemistry Department Faculty of Science Alexandria University Alexandria Egypt
| | | | - Dhuha Al‐Wahaib
- Chemistry Department, Faculty of Science Kuwait University Safat Kuwait
| | - Assem Barakat
- Department of Chemistry College of Science, King Saud University Riyadh Saudi Arabia
| | - Saied M. Soliman
- Chemistry Department Faculty of Science Alexandria University Alexandria Egypt
| | - Ali Eldissouky
- Chemistry Department Faculty of Science Alexandria University Alexandria Egypt
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87
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Antibacterial properties of silver nanoparticles greenly synthesized using guava fruit extract as a reducing agent and stabilizer. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02506-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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88
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Self-potent anti-microbial and anti-fouling action of silver nanoparticles derived from lichen-associated bacteria. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02501-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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89
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Nicolae-Maranciuc A, Chicea D, Chicea LM. Ag Nanoparticles for Biomedical Applications-Synthesis and Characterization-A Review. Int J Mol Sci 2022; 23:ijms23105778. [PMID: 35628585 PMCID: PMC9146088 DOI: 10.3390/ijms23105778] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/09/2022] [Accepted: 05/17/2022] [Indexed: 12/18/2022] Open
Abstract
Silver nanoparticles have been intensively studied over a long period of time because they exhibit antibacterial properties in infection treatments, wound healing, or drug delivery systems. The advantages that silver nanoparticles offer regarding the functionalization confer prolonged stability and make them suitable for biomedical applications. Apart from functionalization, silver nanoparticles exhibit various shapes and sizes depending on the conditions used through their fabrications and depending on their final purpose. This paper presents a review of silver nanoparticles with respect to synthesis procedures, including the polluting green synthesis. Currently, the most commonly used characterization techniques required for nanoparticles investigation in antibacterial treatments are described briefly, since silver nanoparticles possess differences in their structure or morphology.
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Affiliation(s)
- Alexandra Nicolae-Maranciuc
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, Dr. Ion Raţiu Street 5−7, 550012 Sibiu, Romania;
| | - Dan Chicea
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, Dr. Ion Raţiu Street 5−7, 550012 Sibiu, Romania;
- Correspondence:
| | - Liana Maria Chicea
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania;
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90
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Hamdiani S, Shih YF. Development of polylactic acid-polybutylene succinate-silver nanoparticle-diatomite (PLAPBS-AgNPs-D) composite in different compatibilizer as potential pollutants storage container for methylene blue self-degradation. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03056-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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91
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Influence of Polyvinylpyrrolidone Concentration on Properties and Anti-Bacterial Activity of Green Synthesized Silver Nanoparticles. MICROMACHINES 2022; 13:mi13050777. [PMID: 35630244 PMCID: PMC9146159 DOI: 10.3390/mi13050777] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/08/2022] [Accepted: 05/13/2022] [Indexed: 01/27/2023]
Abstract
Environmentally green synthesis of stable polyvinyl pyrrolidone (PVP)-capped silver nanoparticles (PVP-AgNPs) was successfully carried out. The present study focused on investigating the influence of adding PVP during the synthesis process on the size, optical properties and antibacterial effect of silver nanoparticles produced. An aqueous extract of Eucalyptus camaldulensis leaves was used as a reducing agent. The effects of different PVP concentrations and reducing time on the synthesis of nanoparticles (NPs) were characterized by UV–Vis spectrophotometry, scanning electron microscopy (SEM), energy dispersive spectrum (EDX), Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS) and nano tracker analysis (NTA). The addition of PVP was studied. The prepared PVP-AgNPs were spherical with an average size of 13 nm. FTIR analysis confirmed that PVP protects AgNPs by a coordination bond between silver nanoparticles and both N and O of PVP. DLS results indicated the good dispersion of silver nanoparticles. PVP-AgNPs were found to be stable for nearly 5 months. Antibacterial studies through the agar well diffusion method confirmed that silver nanoparticles synthesized using PVP had no inhibitor activity toward Gram-positive and Gram-negative bacteria as opposed to silver nanoparticles prepared without adding PVP, which showed a significant antibacterial activity towards some of the tested pathogens.
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92
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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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93
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Liu Y, Meng X. A Novel Vaccaria Semen Carbonisatum Carbon Nanocomposites and Their Protective Effects on Alcohol-Induced Liver Injury in Mice. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Objective: To discover the efficacy of Vaccariae Semen Carbonisatum nano-components (VSC-NCs) on alcoholic liver injury in mice. Methods: VSC was calcined at high temperature in a muffle furnace, and VSC-NCs were extracted and isolated. Mouse model of alcoholic
liver injury was used and alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total bile acid (TBA), oxidative stress and histopathological assessments were done. Results: Characterization and analysis showed that VSC-NCs were spherical, with
a particle size distribution of 1.0 to 5.5 nm. The results of animal experiments showed that VSC-NCs could significantly reduce the content of ALT, AST, TBA and ALP in mice with alcohol-induced liver injury, and at the same time significantly increase the level of SOD and reduce the level
of malondialdehyde. These results indicated that VSC-NCs could improve the scavenging of reactive oxygen species (ROS) in the body. The ability to reduce the production of lipid peroxides, so as to achieve hepatoprotective effect. Conclusion: VSC-NCs were prepared for the first time,
and was confirmed that it has a significant protective effect on liver injury caused by alcohol. In addition, VSC-NCs can be used as a potential drug for the treatment of alcohol-induced liver injury.
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Affiliation(s)
- Yantong Liu
- School of Basic Medical Sciences, Xi’an Medical University, Xi’an, Shaanxi, 710021, China
| | - Xuan Meng
- Hepatobiliary Surgery Department, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
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94
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Edible mushroom extract engineered Ag NPs as safe antimicrobial and antioxidant agents with no significant cytotoxicity on human dermal fibroblast cells. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109362] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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95
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Ajwa-Dates (Phoenix dactylifera)-Mediated Synthesis of Silver Nanoparticles and Their Anti-Bacterial, Anti-Biofilm, and Cytotoxic Potential. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094537] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Green nanotechnology is the evolution of cost-effective and environmentally friendly processes for the production of metal-based nanoparticles due to medicinal importance and economic value. The aim of the present study was to biosynthesize and characterize silver nanoparticles (AgNPs) using the seed extract of Ajwa dates (Aw). The anti-bacteriostatic activity of biosynthesized Aw–AgNPs against Gram-positive and Gram-negative bacterial strains was evaluated. The anti-biofilm activity was examined by the tissue culture plate method. Lastly, the anti-cancer potential of Aw–AgNPs was investigated against the human breast cancer cell line HCC712. UV–visible absorption spectra exhibited the plasmon resonance peak at 430 nm, with the solution undergoing rapid color changes that verified the existence of biosynthesized silver nanoparticles in the solution. TEM and SEM images illustrated that the Aw–AgNPs were spherical and between 15 and 80 nm in diameter. The reduction and stabilization of Aw–AgNPs was due to the functional groups present in the biomolecules of the Ajwa seeds, as identified by FTIR. The Aw–AgNPs exhibited significant anti-bacterial activity against all the tested bacterial strains. Moreover, the Aw–AgNPs efficiently hampered the biofilm formation of the bacterial strains and exhibited cytotoxicity at various concentrations. Overall, these findings suggest that biosynthesized Aw–AgNPs may be used as a potential therapeutic formulation against bacterial infections and breast cancer.
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96
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Kolhe N, Damle E, Pradhan A, Zinjarde S. A comprehensive assessment of Yarrowia lipolytica and its interactions with metals: Current updates and future prospective. Biotechnol Adv 2022; 59:107967. [PMID: 35489656 DOI: 10.1016/j.biotechadv.2022.107967] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 04/22/2022] [Accepted: 04/22/2022] [Indexed: 11/16/2022]
Abstract
The non-conventional yeast Yarrowia lipolytica has been popular as a model system for understanding biological processes such as dimorphism and lipid accumulation. The organism can efficiently utilize hydrophobic substrates (hydrocarbons and triglycerides) thereby rendering it relevant in bioremediation of oil polluted environments. The current review focuses on the interactions of this fungus with metal pollutants and its potential application in bioremediation of metal contaminated locales. This fungus is intrinsically equipped with a variety of physiological and biochemical features that enable it to tide over stress conditions induced by the presence of metals. Production of enzymes such as phosphatases, reductases and superoxide dismutases are worth a special mention. In the presence of metals, levels of inherently produced metal binding proteins (metallothioneins) and the pigment melanin are seen to be elevated. Morphological alterations with respect to biofilm formation and dimorphic transition from yeast to mycelial form are also induced by certain metals. The biomass of Y. lipolytica is inherently important as a biosorbent and cell surface modification, process optimization or whole cell immobilization techniques have aided in improving this capability. In the presence of metals such as mercury, cadmium, copper and uranium, the culture forms nanoparticulate deposits. In addition, on account of its intrinsic reductive ability, Y. lipolytica is being exploited for synthesizing nanoparticles of gold, silver, cadmium and selenium with applications as antimicrobial compounds, location agents for bioimaging and as feed supplements. This versatile organism thus has great potential in interacting with various metals and addressing problems related to their pollutant status.
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Affiliation(s)
- Nilesh Kolhe
- Department of Biotechnology (with jointly merged Institute of Bioinformatics and Biotechnology), Savitribai Phule Pune University, Pune 411007, India
| | - Eeshan Damle
- Department of Biotechnology (with jointly merged Institute of Bioinformatics and Biotechnology), Savitribai Phule Pune University, Pune 411007, India
| | - Aditya Pradhan
- Department of Biotechnology (with jointly merged Institute of Bioinformatics and Biotechnology), Savitribai Phule Pune University, Pune 411007, India
| | - Smita Zinjarde
- Department of Biotechnology (with jointly merged Institute of Bioinformatics and Biotechnology), Savitribai Phule Pune University, Pune 411007, India.
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97
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Bishoyi AK, Sahoo CR, Padhy RN. Recent progression of cyanobacteria and their pharmaceutical utility: an update. J Biomol Struct Dyn 2022; 41:4219-4252. [PMID: 35412441 DOI: 10.1080/07391102.2022.2062051] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Cyanobacteria (blue-green algae) are Gram-negative photosynthetic eubacteria that are found everywhere. This largest group of photosynthetic prokaryotes is rich in structurally novel and biologically active compounds; several of which have been utilized as prospective drugs against cancer and other ailments, as well. Consequently, the integument of nanoparticles-synthetic approaches in cyanobacterial extracts should increase pharmacological activity. Moreover, silver nanoparticles (AgNPs) are small materials with diameters below 100 nm that are classified into different classes based on their forms, sizes, and characteristics. Indeed, the biosynthesized AgNPs are generated with a variety of organisms, algae, plants, bacteria, and a few others, for the medicinal purposes, as the bioactive compounds of curio and some proteins from cyanobacteria have the potentiality in the treatment of a wide range of infectious diseases. The critical focus of this review is on the antimicrobial, antioxidant, and anticancer properties of cyanobacteria. This would be useful in the pharmaceutical industries in the future drug development cascades.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Ajit Kumar Bishoyi
- Central Research Laboratory, Institute of Medical Sciences and Sum Hospital, Siksha "O" Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
| | - Chita Ranjan Sahoo
- Central Research Laboratory, Institute of Medical Sciences and Sum Hospital, Siksha "O" Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
| | - Rabindra Nath Padhy
- Central Research Laboratory, Institute of Medical Sciences and Sum Hospital, Siksha "O" Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
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98
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Kumar M, Upadhyay LSB, Kerketta A, Vasanth D. Extracellular Synthesis of Silver Nanoparticles Using a Novel Bacterial Strain Kocuria rhizophila BR-1: Process Optimization and Evaluation of Antibacterial Activity. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-00968-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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99
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Silver nanoparticles modified electrodes for electroanalysis: An updated review and a perspective. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107166] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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100
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Temperature Estimation during Pulsed Laser Sintering of Silver Nanoparticles. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
During the thermal sintering of metal nanoparticles (NPs) the process temperature plays the most important role in the outcome of the sintering results and the selection of a suitable substrate. Here, temperature calculation during pulsed laser sintering of silver (Ag) nanoparticles (NPs) inkjet-printed on glass substrates is presented. During the pulsed laser sintering of Ag NPs, a minimum line resistivity less than twice the bulk silver resistivity was obtained within around 52 s under a laser power of 276 mW. The temperature field during the pulsed laser sintering of Ag NPs was estimated via a three-dimensional numerical model in which a temperature-dependent thermal conductivity of Ag NPs was adopted. An algorithm for treating the thermal conductivity of the heated Ag NPs in a region by a previous laser shot was devised for the improvement of the temperature field estimation. A maximum temperature of approximately 204 °C over the Ag NPs line was obtained with a 276 mW laser power and a scanning speed of 135 μm/s.
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