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Strapasson GB, de C Flach E, Assis M, Corrêa SA, Longo E, Machado G, Santos JFL, Weibel DE. Eco-friendly Synthesis of Silver Nanoparticles and its Application in Hydrogen Photogeneration and Nanoplasmonic Biosensing. Chemphyschem 2023; 24:e202300002. [PMID: 37535823 DOI: 10.1002/cphc.202300002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/05/2023]
Abstract
Environmentally friendly methods for silver nanoparticles (AgNPs) synthesis without the use of hazardous chemicals have recently drawn attention. In this work, AgNPs have been synthesized by microwave irradiation using only honey solutions or aqueous fresh pink radish extracts. The concentrations of honey, radish extract, AgNO3 and pH were varied. AgNPs presented mean sizes between 7.0 and 12.8 nm and were stable up to 120 days. The AgNPs were employed as co-catalyst (TiO2 @AgNPs) to increase the hydrogen photogeneration under UV-vis and only visible light irradiation, when compared to pristine TiO2 NPs. The prepared photocatalyst also showed hydrogen generation under visible light. Additionally, AgNPs were used to assemble a nanoplasmonic biosensor for the biodetection of extremely low concentrations of streptavidin, owing to its specific binding to biotin. It is shown here that green AgNPs are versatile nanomaterials, thus being potential candidates for hydrogen photogeneration and biosensing applications.
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Affiliation(s)
- Guilherme B Strapasson
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Eduarda de C Flach
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Marcelo Assis
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), Castelló, 12071, Spain
| | - Silma A Corrêa
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Elson Longo
- CDMF, Federal University of Sao Carlos - UFSCar, P.O. Box 676, 13565e905, São Carlos, São Paulo, Brazil
| | - Giovanna Machado
- Centro de Tecnologias Estratégicas do Nordeste (CETENE), Av. Prof. Luís Freire, n° 01 - CidadeUniversitária, Recife/PE, 50.740-545, Brazil
- Current Adress: Institute of Chemistry, University of Campinas, UNICAMP, Campinas, 13083-970, São Paulo, Brazil
| | - Jacqueline F L Santos
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Daniel E Weibel
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
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Bahari N, Hashim N, Md Akim A, Maringgal B. Recent Advances in Honey-Based Nanoparticles for Wound Dressing: A Review. NANOMATERIALS 2022; 12:nano12152560. [PMID: 35893528 PMCID: PMC9332021 DOI: 10.3390/nano12152560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 12/10/2022]
Abstract
Wounds with impaired healing, including delayed acute injuries and chronic injuries, generally fail to progress through normal healing stages. A deeper understanding of the biochemical processes involved in chronic wound cures is necessary to correct the microenvironmental imbalances in the wound treatment designs of products. The therapeutic benefits of honey, particularly its antimicrobial activity, make it a viable option for wound treatment in a variety of situations. Integration with nanotechnology has opened up new possibilities not only for wound healing but also for other medicinal applications. In this review, recent advances in honey-based nanoparticles for wound healing are discussed. This also covers the mechanism of the action of nanoparticles in the wound healing process and perspectives on the challenges and future trends of using honey-based nanoparticles. The underlying mechanisms of wound healing using honey are believed to be attributed to hydrogen peroxide, high osmolality, acidity, non-peroxide components, and phenols. Therefore, incorporating honey into various wound dressings has become a major trend due to the increasing demand for combination dressings in the global wound dressing market because these dressings contain two or more types of chemical and physical properties to ensure optimal functionality. At the same time, their multiple features (low cost, biocompatibility, and swelling index) and diverse fabrication methods (electrospun fibres, hydrogels, etc.) make them a popular choice among researchers.
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Affiliation(s)
- Norfarina Bahari
- Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Malaysian Agricultural Research and Development Institute (MARDI), Serdang 43400, Selangor, Malaysia
| | - Norhashila Hashim
- Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- SMART Farming Technology Research Centre (SFTRC), Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Correspondence:
| | - Abdah Md Akim
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Bernard Maringgal
- Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, Kota Samarahan 94300, Sarawak, Malaysia;
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Vidovic S, Stojkovska J, Stevanovic M, Balanc B, Vukasinovic-Sekulic M, Marinkovic A, Obradovic B. Effects of poly(vinyl alcohol) blending with Ag/alginate solutions to form nanocomposite fibres for potential use as antibacterial wound dressings. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211517. [PMID: 35360353 PMCID: PMC8965402 DOI: 10.1098/rsos.211517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/01/2022] [Indexed: 05/03/2023]
Abstract
In this work, nanocomposite fibres and microfibres based on alginate and poly(vinyl alcohol) (PVA) with silver nanoparticles (AgNPs) were produced and characterized for potential application as antibacterial wound dressings. PVA/Ag/Na-alginate colloid solution was used for the preparation of the fibres by a simple extrusion technique followed by freezing-thawing cycles. UV-Visible spectroscopy confirmed successful preservation of AgNPs in fibres while Fourier transform infrared spectroscopy has shown a balanced combined effect on the Ca-alginate spatial arrangement with the addition of both AgNPs and PVA. The presence of PVA in fibres induced an increase in the swelling degree as compared with that of Ag/Ca-alginate fibres (approx. 28 versus approx. 14). Still, the initially produced PVA/Ca-alginate fibres were mechanically weaker than Ca-alginate fibres, but after drying and rehydration exhibited better mechanical properties. Also, the obtained fibres released AgNPs and/or silver ions at the concentration of approximately 2.6 µg cm-3 leading to bacteriostatic effects against Staphylococcus aureus and Escherichia coli. These results are relevant for practical utilization of the fibres, which could be stored and applied in the dry form with preserved mechanical stability, sorption capacity and antibacterial activity.
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Affiliation(s)
- Srdjan Vidovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
| | - Jasmina Stojkovska
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
- Innovation Center of the Faculty of Technology and Metallurgy, 11000 Belgrade, Serbia
| | - Milan Stevanovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
| | - Bojana Balanc
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
- Innovation Center of the Faculty of Technology and Metallurgy, 11000 Belgrade, Serbia
| | | | - Aleksandar Marinkovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
| | - Bojana Obradovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
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Nezhad-Mokhtari P, Javanbakht S, Asadi N, Ghorbani M, Milani M, Hanifehpour Y, Gholizadeh P, Akbarzadeh A. Recent advances in honey-based hydrogels for wound healing applications: Towards natural therapeutics. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Fratianni F, Ombra MN, d’Acierno A, Caputo L, Amato G, De Feo V, Coppola R, Nazzaro F. Polyphenols Content and In Vitro α-Glycosidase Activity of Different Italian Monofloral Honeys, and Their Effect on Selected Pathogenic and Probiotic Bacteria. Microorganisms 2021; 9:1694. [PMID: 34442773 PMCID: PMC8398212 DOI: 10.3390/microorganisms9081694] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 11/16/2022] Open
Abstract
We evaluated the polyphenol content and the α-glucosidase activity exhibited by different monofloral honeys of Italian origin. Their capacity to act on different pathogenic (Acinetobacter baumannii, Escherichia coli, Listeria monocytogenes, Pseudomonas aeruginosa, and Staphylococcus aureus) as well as probiotic bacteria (Lacticaseibacillus casei, Lactobacillus acidophilus, Lactiplantibacillus plantarum, Lactobacillus gasseri, and Lacticaseibacillus rhamnosus) was also assessed. Total polyphenols varied between 110.46 μg/g of fresh product (rhododendron honey) and 552.29 μg/g of fresh product (strawberry tree honey). Such result did not correspond to a parallel inhibitory α-glycosidase activity that, in each case was never higher than 33 μg/mL. Honeys were differently capable to fight the biofilm formation of the pathogens (inhibition up to 93.27%); they inhibited the in vitro adhesive process (inhibition up to 84.27%), and acted on mature biofilm (with values up to 76.64%). Their effect on bacterial metabolism was different too. Honeys were ineffective to inhibit E. coli mature biofilm nor to act on its metabolism. The action of the honey on probiotic strains seemed almost always stimulate their growth. Thus, these monofloral honeys might exhibit effects on human health and act positively as prebiotics.
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Affiliation(s)
- Florinda Fratianni
- Institute of Food Science, CNR-ISA, Via Roma 64, 83100 Avellino, Italy; (F.F.); (M.N.O.); (A.d.)
| | - Maria Neve Ombra
- Institute of Food Science, CNR-ISA, Via Roma 64, 83100 Avellino, Italy; (F.F.); (M.N.O.); (A.d.)
| | - Antonio d’Acierno
- Institute of Food Science, CNR-ISA, Via Roma 64, 83100 Avellino, Italy; (F.F.); (M.N.O.); (A.d.)
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 84084 Fisciano, Italy; (L.C.); (G.A.)
| | - Giuseppe Amato
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 84084 Fisciano, Italy; (L.C.); (G.A.)
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 84084 Fisciano, Italy; (L.C.); (G.A.)
| | - Raffaele Coppola
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via de Sanctis snc, 86100 Campobasso, Italy;
| | - Filomena Nazzaro
- Institute of Food Science, CNR-ISA, Via Roma 64, 83100 Avellino, Italy; (F.F.); (M.N.O.); (A.d.)
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Stojkovska J, Zvicer J, Andrejevic M, Janackovic D, Obradovic B, Veljovic DN. Novel composite scaffolds based on alginate and Mg-doped calcium phosphate fillers: Enhanced hydroxyapatite formation under biomimetic conditions. J Biomed Mater Res B Appl Biomater 2021; 109:2079-2090. [PMID: 33955159 DOI: 10.1002/jbm.b.34856] [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: 08/27/2020] [Revised: 04/06/2021] [Accepted: 04/24/2021] [Indexed: 11/07/2022]
Abstract
In the present study, we synthesized hydroxyapatite (HAP) powders followed by the production of alginate based macroporous scaffolds with the aim to imitate the natural bone structure. HAP powders were synthesized by using a hydrothermal method, and after calcination, dominant phases in the powders, undoped and doped with Mg2+ were HAP and β-tricalcium phosphate, respectively. Upon mixing with Na-alginate, followed by gelation and freeze-dying, highly macroporous composite scaffolds were obtained with open and connected pores and uniformly dispersed mineral phase as determined by scanning electron microscopy. Mechanical properties of the scaffolds were influenced by the composition of calcium phosphate fillers being improved as Ca2+ concentration increased while Mg2+ concentration decreased. HAP formation within all scaffolds was investigated in simulated body fluid (SBF) during 28 days under static conditions while the best candidate (Mg substituted HAP filler, precursor solution with [Ca + Mg]/P molar ratio of 1.52) was investigated under more physiological conditions in a biomimetic perfusion bioreactor. The continuous SBF flow (superficial velocity of 400 μm/s) induced the formation of abundant HAP crystals throughout the scaffolds leading to improved mechanical properties to some extent as compared to the initial scaffolds. These findings indicated potentials of novel biomimetic scaffolds for use in bone tissue engineering.
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Affiliation(s)
- Jasmina Stojkovska
- Faculty of Technology and Metallurgy, University of Belgrade, Serbia.,Innovation Center of the Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Jovana Zvicer
- Faculty of Technology and Metallurgy, University of Belgrade, Serbia
| | - Milica Andrejevic
- Faculty of Technology and Metallurgy, University of Belgrade, Serbia
| | | | - Bojana Obradovic
- Faculty of Technology and Metallurgy, University of Belgrade, Serbia
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Stojkovska J, Zvicer J, Obradovic B. Preclinical functional characterization methods of nanocomposite hydrogels containing silver nanoparticles for biomedical applications. Appl Microbiol Biotechnol 2020; 104:4643-4658. [DOI: 10.1007/s00253-020-10521-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 01/04/2020] [Accepted: 03/03/2020] [Indexed: 12/20/2022]
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