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Rabee M, Elmogy SA, Morsy M, Lawandy S, Zahran MAH, Moustafa H. Biosynthesis of MgO Nanoparticles and Their Impact on the Properties of the PVA/Gelatin Nanocomposites for Smart Food Packaging Applications. ACS APPLIED BIO MATERIALS 2023; 6:5037-5051. [PMID: 37909223 DOI: 10.1021/acsabm.3c00723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Fabricating active and intelligent packaging materials has become the highest demand for catering to market needs, especially after the COVID-19 pandemic, for ensuring food safety. Thus, the wider objective of this article was to promote active and smart packaging biofilms possessing antibacterial and humidity-sensing properties for sustainable poly(vinyl alcohol) (PVA)/gelatin (Ge) reinforced with biosynthesized magnesium nanoparticles (MgO NPs) by a solvent-casting route. The UV-visible spectrum has been utilized to determine the optimized biosynthesized MgO NPs and then the nanostructure of optimized MgO NPs investigated by varying techniques such as XRD, SEM-EDX, TEM, FT-IR, and thermogravimetric analysis. Four MgO NPs proportions (i.e., 1, 3, 5, and 10 wt %) were used to fabricate PVA/Ge biofilms. In the biofilms system, the tensile results showcased that the nanocomposite film containing 5 wt % of MgO NPs had the highest tensile strength value (i.e., 22.10 MPs) compared to the other biofilms or the unfilled blank (i.e., 6.30 MPs). Correspondingly, the humidity-sensing data revealed that the PVA/Ge-1% MgO NPs sensor had higher sensitivity over a broad range of relative humidity from (7-97% RH) and at 100 Hz. Additionally, the hydrophobicity of biofilms, measured by water contact angle, UV-stability, and antioxidant and antibacterial properties was also analyzed to possibly use these biofilms in active food packaging with extended shelf life of foodstuffs. However, the PVA/Ge-1% MgO NPs biofilm was predominately found to possess attractive sensing properties and could be considered as a sensor for intelligent food packaging.
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Affiliation(s)
- Marwa Rabee
- Department of Polymer Metrology & Technology, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
- Bioanalysis Laboratory, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
| | - Soma Ahmed Elmogy
- Materials Testing and Surface Chemical Analysis Lab, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
| | - Mohamed Morsy
- Building Physics and Environment Institute, Housing and Building National Research Center (HBRC), Dokki, P.O. Box 1770, Giza 12611, Egypt
- Nanotechnology Research Center (NTRC), The British University in Egypt (BUE), El Sherouk City, Suez Desert Road, Cairo 11837, Egypt
| | - Samir Lawandy
- Materials Testing and Surface Chemical Analysis Lab, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
| | - Magdy Abdle Hamid Zahran
- Organic Chemistry, Faculty of Science, Menoufia University, P.O. 325136, Shebin El-Kom 32511, Egypt
| | - Hesham Moustafa
- Department of Polymer Metrology & Technology, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
- Bioanalysis Laboratory, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
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Huang X, Song J, Xu F, Yun D, Li C, Liu J. Characterization and Application of Guar Gum/Polyvinyl Alcohol-Based Food Packaging Films Containing Betacyanins from Pokeweed ( Phytolacca acinosa Roxb.) Berries and Silver Nanoparticles. Molecules 2023; 28:6243. [PMID: 37687072 PMCID: PMC10489142 DOI: 10.3390/molecules28176243] [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: 07/26/2023] [Revised: 08/14/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Food packaging films were prepared by using guar gum/polyvinyl alcohol (GP) as the film matrix, 2% Ag nanoparticles (AgNPs) as reinforcing filler and antimicrobial agent, and 1%, 2% and 3% pokeweed betacyanins (PB) as the colorant and antioxidant agent. The structures and color-changing, barrier, mechanical, thermal and antioxidant/antibacterial properties of different films were measured. The results show that the PB were pH-sensitive pigments with pink, purple and yellow colors at pH 3-8, pH 9-11 and pH 12, respectively. PB improved the compatibility of guar gum and polyvinyl alcohol through hydrogen bonds. The films with PB showed a color-changing capacity under ammonia vapor and good color stability in chilled storage. AgNPs and PB elevated the barrier capacity of GP film to light, water vapor and oxygen gas. Meanwhile, AgNPs and PB improved the stiffness, thermal stability and antioxidant/antibacterial activity of GP film. The film with AgNPs and 3% PB showed the highest barrier capacity, stiffness, thermal stability and antioxidant/antimicrobial activity. In shrimp spoilage test, the films with AgNPs and 2% and 3% PB indicated shrimp freshness through film color changes. The results reveal the potential use of the prepared films in active and smart packaging.
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Affiliation(s)
- Xiaoqian Huang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China; (X.H.); (F.X.); (D.Y.); (C.L.)
| | - Jiangfeng Song
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
| | - Fengfeng Xu
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China; (X.H.); (F.X.); (D.Y.); (C.L.)
| | - Dawei Yun
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China; (X.H.); (F.X.); (D.Y.); (C.L.)
| | - Chenchen Li
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China; (X.H.); (F.X.); (D.Y.); (C.L.)
| | - Jun Liu
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China; (X.H.); (F.X.); (D.Y.); (C.L.)
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Filimon A, Onofrei MD, Bargan A, Stoica I, Dunca S. Bioactive Materials Based on Hydroxypropyl Methylcellulose and Silver Nanoparticles: Structural-Morphological Characterization and Antimicrobial Testing. Polymers (Basel) 2023; 15:polym15071625. [PMID: 37050239 PMCID: PMC10096613 DOI: 10.3390/polym15071625] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/18/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
The progress achieved in recent years in the biomedical field justifies the objective evaluation of new techniques and materials obtained by using silver in different forms as metallic silver, silver salts, and nanoparticles. Thus, the antibacterial, antiviral, antifungal, antioxidant, and anti-inflammatory activity of silver nanoparticles (AgNPs) confers to newly obtained materials characteristics that make them ideal candidates in a wide spectrum of applications. In the present study, the use of hydroxypropyl methyl cellulose (HPMC) in the new formulation, by embedding AgNPs with antibacterial activity, using poly(N-vinylpyrrolidone) (PVP) as a stabilizing agent was investigated. AgNPs were incorporated in HPMC solutions, by thermal reduction of silver ions to silver nanoparticles, using PVP as a stabilizer; a technique that ensures the efficiency and selectivity of the obtained materials. The rheological properties, morphology, in vitro antimicrobial activity, and stability/catching of Ag nanoparticles in resulting HPMC/PVP-AgNPs materials were evaluated. The obtained rheological parameters highlight the multifunctional roles of PVP, focusing on the stabilizing effect of new formulations but also the optimization of some properties of the studied materials. The silver amount was quantified using the spectroscopy techniques (energy-dispersive X-ray fluorescence (XRF), energy-dispersive X-ray spectroscopy (EDX)), while formation of the AgNPs was confirmed using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), and dynamic light scattering (DLS). Also, the morphological examination (Atomic Force Microscopy (AFM) and Scanning electron microscopy (SEM)) by means of the texture roughness parameters has evidenced favorable characteristics for targeted applications. Antibacterial activity was tested against Escherichia coli and Staphylococcus aureus and was found to be substantially improved was silver was added in the studied systems.
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Affiliation(s)
- Anca Filimon
- Polycondensation and Thermostable Polymers Department, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania
| | - Mihaela Dorina Onofrei
- Polycondensation and Thermostable Polymers Department, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania
| | - Alexandra Bargan
- Inorganic Polymers Department, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania
| | - Iuliana Stoica
- Atomic Force Microscopy Laboratory, Physical Chemistry of Polymers Department, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania
| | - Simona Dunca
- Department of Microbiology, Biology Faculty, "Alexandru Ioan Cuza" University of Iasi, 11 Carol I Bvd., 700506 Iasi, Romania
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Mendoza Tolentino Y, Romero‐Zúñiga GY, Ceniceros Reyes MA, Flores Silva PC, Vargas Ramírez Á, Yáñez‐Macías R, Hernández Hernández E, González Morones P. Microwave dielectric heating affects the in‐situ polymerization process of Nylon‐6/
Ag‐NPs
hybrid polymer nanocomposite. J Appl Polym Sci 2023. [DOI: 10.1002/app.53793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
| | | | - Mónica Aimeé Ceniceros Reyes
- Coordinación del Laboratorio Central de Instrumentación Analítica Centro de Investigación en Química Aplicada (CIQA) Saltillo Mexico
| | | | - Ángel Vargas Ramírez
- Departamento de Materiales Avanzados Centro de Investigación en Química Aplicada (CIQA) Saltillo Mexico
| | - Roberto Yáñez‐Macías
- Departamento de Materiales Avanzados Centro de Investigación en Química Aplicada (CIQA) Saltillo Mexico
| | | | - Pablo González Morones
- Departamento de Materiales Avanzados Centro de Investigación en Química Aplicada (CIQA) Saltillo Mexico
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Biosynthesis of silver nanoparticles loaded PVA/gelatin nanocomposite films and their antimicrobial activities. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Silver Nanoparticles Densely Grafted with Nitroxides as a Recyclable Green Catalyst in the Selective Oxidation of Alcohols. NANOMATERIALS 2022; 12:nano12152542. [PMID: 35893509 PMCID: PMC9330881 DOI: 10.3390/nano12152542] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/13/2022] [Accepted: 07/16/2022] [Indexed: 02/01/2023]
Abstract
The selective oxidation of alcohols, leading to appropriate aldehydes, is widely recognised as one of the most important reactions in organic synthesis. With ever-increasing environmental concerns, much attention has been directed toward developing catalytic protocols that use molecular oxygen as an oxidant. An ideal green oxidation process should employ a highly active, selective and recyclable catalyst that can work with oxygen under mild conditions. This paper presents a successful application of densely grafted silver nanostructures with stable nitroxide radicals (N-AgNPs) as an effective, easily-recovered and regenerable catalyst for the selective oxidation of alcohols. The fabricated ultra-small and narrow dispersive silver nanoparticles have been fully characterised using physicochemical methods (TEM, DLS, XPS, TGA). N-AgNPs have been successfully applied to oxidise several model alcohols: benzyl alcohol, 4-pyridinemethanol, furfuryl alcohol, 1-phenyl ethanol, n-heptanol and allyl alcohol under mild conditions using oxygen as a stoichiometric oxidant. Notably, the fabricated nitroxide grafted silver nanoparticles (N-AgNPs) were reused more than ten times in the oxidation of a series of primary alcohols to corresponding aldehydes under mild conditions with very high yields and a selectivity close to 100%.
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Choudhury M, Bindra HS, Singh K, Singh AK, Nayak R. Antimicrobial polymeric composites in consumer goods and healthcare sector: A healthier way to prevent infection. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mousam Choudhury
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
| | | | - Karishma Singh
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
| | - Alok Kumar Singh
- School of Biotechnology Sher‐e‐Kashmir University of Agricultural Science and Technology of Jammu Jammu and Kashmir India
| | - Ranu Nayak
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
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Steckiewicz KP, Cieciórski P, Barcińska E, Jaśkiewicz M, Narajczyk M, Bauer M, Kamysz W, Megiel E, Inkielewicz-Stepniak I. Silver Nanoparticles as Chlorhexidine and Metronidazole Drug Delivery Platforms: Their Potential Use in Treating Periodontitis. Int J Nanomedicine 2022; 17:495-517. [PMID: 35140461 PMCID: PMC8820264 DOI: 10.2147/ijn.s339046] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/24/2021] [Indexed: 12/18/2022] Open
Abstract
Purpose Materials and Methods Results Conclusion
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Affiliation(s)
- Karol P Steckiewicz
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | | | - Ewelina Barcińska
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Maciej Jaśkiewicz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Magdalena Narajczyk
- Laboratory of Electron Microscopy, Faculty of Biology, University of Gdansk, Gdansk, Poland
| | - Marta Bauer
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Wojciech Kamysz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | | | - Iwona Inkielewicz-Stepniak
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
- Correspondence: Iwona Inkielewicz-Stepniak Tel +48 58 349 1516Fax +48 58 349 1517 Email
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Nanocomposites production of polystyrene/silver obtained by embedding silver nanoparticles in situ with styrene polymerization. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1007/s43153-021-00207-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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10
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Mabrouk M, Mousa SM, ElGhany WAA, Abo-elfadl MT, El-Bassyouni GT. Bioactivity and cell viability of Ag+- and Zr4+-co-doped biphasic calcium phosphate. APPLIED PHYSICS A 2021; 127:948. [DOI: 10.1007/s00339-021-05051-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/28/2021] [Indexed: 09/02/2023]
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11
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Liu X, Chen JL, Yang WY, Qian YC, Pan JY, Zhu CN, Liu L, Ou WB, Zhao HX, Zhang DP. Biosynthesis of silver nanoparticles with antimicrobial and anticancer properties using two novel yeasts. Sci Rep 2021; 11:15795. [PMID: 34349183 PMCID: PMC8338994 DOI: 10.1038/s41598-021-95262-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/15/2021] [Indexed: 01/21/2023] Open
Abstract
AgNPs are nanomaterials with many potential biomedical applications. In this study, the two novel yeast strains HX-YS and LPP-12Y capable of producing biological silver nanoparticles were isolated. Sequencing of ribosomal DNA-ITS fragments, as well as partial D1/D2 regions of 26S rDNA indicated that the strains are related to species from the genus Metschnikowia. The BioAgNPs produced by HX-YS and LPP-12Y at pH 5.0-6.0 and 26 °C ranged in size from 50 to 500 nm. The antibacterial activities of yeast BioAgNPs against five pathogenic bacteria were determined. The highest antibacterial effect was observed on P. aeruginosa, with additional obvious effects on E. coli ATCC8099 and S. aureus ATCC10231. Additionally, the BioAgNPs showed antiproliferative effects on lung cancer cell lines H1975 and A579, with low toxicity in Beas 2B normal lung cells. Therefore, the AgNPs biosynthesized by HX-YS and LPP-12Y may have potential applications in the treatment of bacterial infections and cancer.
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Affiliation(s)
- Xin Liu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Jia-Le Chen
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Wen-Yu Yang
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yu-Cheng Qian
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jing-Yu Pan
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Chen-Nianci Zhu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Li Liu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Wen-Bin Ou
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Hong-Xin Zhao
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Dian-Peng Zhang
- Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Beijing, 100097, China.
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Olmos D, González-Benito J. Polymeric Materials with Antibacterial Activity: A Review. Polymers (Basel) 2021; 13:613. [PMID: 33670638 PMCID: PMC7922637 DOI: 10.3390/polym13040613] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/02/2021] [Accepted: 02/10/2021] [Indexed: 12/21/2022] Open
Abstract
Infections caused by bacteria are one of the main causes of mortality in hospitals all over the world. Bacteria can grow on many different surfaces and when this occurs, and bacteria colonize a surface, biofilms are formed. In this context, one of the main concerns is biofilm formation on medical devices such as urinary catheters, cardiac valves, pacemakers or prothesis. The development of bacteria also occurs on materials used for food packaging, wearable electronics or the textile industry. In all these applications polymeric materials are usually present. Research and development of polymer-based antibacterial materials is crucial to avoid the proliferation of bacteria. In this paper, we present a review about polymeric materials with antibacterial materials. The main strategies to produce materials with antibacterial properties are presented, for instance, the incorporation of inorganic particles, micro or nanostructuration of the surfaces and antifouling strategies are considered. The antibacterial mechanism exerted in each case is discussed. Methods of materials preparation are examined, presenting the main advantages or disadvantages of each one based on their potential uses. Finally, a review of the main characterization techniques and methods used to study polymer based antibacterial materials is carried out, including the use of single force cell spectroscopy, contact angle measurements and surface roughness to evaluate the role of the physicochemical properties and the micro or nanostructure in antibacterial behavior of the materials.
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Affiliation(s)
- Dania Olmos
- Department of Materials Science and Engineering and Chemical Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés, 28911 Madrid, Spain
| | - Javier González-Benito
- Department of Materials Science and Engineering and Chemical Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés, 28911 Madrid, Spain
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Development of Multifunctional Coating of Textile Materials Using Silver Microencapsulated Compositions. COATINGS 2021. [DOI: 10.3390/coatings11020159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The efficiency of the method for the synthesis of silver nanoparticles using a system containing oxalic dialdehyde as a reducing agent, and polyguanidine as a stabilizer is shown. An analysis of the data of photon correlation spectroscopy characterizing the sizes of the formed particles in the Ag-polyelectrolyte system is presented. It has been established that the synthesized silver nanoparticles have a stable biocidal effect. The system of biodegradable polyelectrolytes chitosan-xanthan gum for the synthesis of the capsule shell including silver nanoparticles is selected. This will allow the formation of stable polyelectrolyte capsule shells containing oyster mushroom mycelium extract. A protocol for the synthesis of microcapsules by the method of sequential adsorption of chitosan polyelectrolytes and xanthan gum on calcium carbonate templates was developed. Silver nanoparticles are included in the capsule shell, and a biologically active drug (oyster mushroom mycelium extract) is included in the core. The technological mode of complex capsules immobilization on a textile material by the layer-by-layer method is described. The immobilization of multilayer microcapsules on a fibrous substrate is provided by a system of polyelectrolytes: positively charged chitosan and negatively charged xanthan gum. The developed multifunctional coatings make it possible to impart multifunctional properties to textile materials: antibacterial, antimycotic, high hygroscopic properties.
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