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Huang Q, Zhu L, Huang F, Zhao Y, Wang H, Luan S, Xiao C. Novel quinazolin-6-yl Isoindolinone: Altering polysaccharide chemstructure for antibacterial efficacy against Staphylococcus aureus. Int J Biol Macromol 2024; 280:135650. [PMID: 39278453 DOI: 10.1016/j.ijbiomac.2024.135650] [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: 08/02/2024] [Revised: 09/03/2024] [Accepted: 09/12/2024] [Indexed: 09/18/2024]
Abstract
The ongoing development of novel strategies to combat Staphylococcus aureus and eliminate its biofilm formation has gained significant attention for human health. Antibiotic-resistant S. aureus necessitates the development of novel antibacterial agents with new mechanism of action. This study introduced a promising recently synthesized quinazolin-6-yl isoindolinone (IQE-X1), which exhibited potent antibacterial and antibiofilm efficacy with average median inhibitory concentration (IC50) of 3.37 μg mL-1 and minimal inhibitory concentration (MIC) of 12.5 μg mL-1, coupled with its ability to reduce cell surface hydrophobicity. IQE-X1 dose-dependently decreased extracellular polysaccharides (EPS) and its component monosaccharides, including rhamnose, arabinose, glucosamine, galactose, glucose, xylose, mannose, and ribose, accompanied by an increase in capsular polysaccharides (CP) and its individual monosaccharides, especially glucosamine. IQE-X1 demonstrated specificity in modulating the structural profiles of EPS and CP by altering the compositional ratios of their component monosaccharides. The potential mechanism of polysaccharide modulation was preliminarily elucidated through the response of β-N-acetylaminoglucosidase to IQE-X1 and their direct binding interaction. These findings provide new insights into the potential manipulation of the chemstructure of these biologically important macromolecules, EPS and CP, and highlight the antibacterial potential of IQE-X1 as a polysaccharide modulator for the development of more effective polysaccharide-targeted strategies against S. aureus.
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Affiliation(s)
- Qingchun Huang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Lisong Zhu
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Fengcheng Huang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yanjun Zhao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Hongye Wang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Shaorong Luan
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Ciying Xiao
- School of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
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Patel J, Kumar GS, Roy H, Maddiboyina B, Leporatti S, Bohara RA. From nature to nanomedicine: bioengineered metallic nanoparticles bridge the gap for medical applications. DISCOVER NANO 2024; 19:85. [PMID: 38724833 PMCID: PMC11082127 DOI: 10.1186/s11671-024-04021-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/22/2024] [Indexed: 05/12/2024]
Abstract
The escalating global challenge of antimicrobial resistance demands innovative approaches. This review delves into the current status and future prospects of bioengineered metallic nanoparticles derived from natural sources as potent antimicrobial agents. The unique attributes of metallic nanoparticles and the abundance of natural resources have sparked a burgeoning field of research in combating microbial infections. A systematic review of the literature was conducted, encompassing a wide range of studies investigating the synthesis, characterization, and antimicrobial mechanisms of bioengineered metallic nanoparticles. Databases such as PubMed, Scopus, Web of Science, ScienceDirect, Springer, Taylor & Francis online and OpenAthen were extensively searched to compile a comprehensive overview of the topic. The synthesis methods, including green and sustainable approaches, were examined, as were the diverse biological sources used in nanoparticle fabrication. The amalgamation of metallic nanoparticles and natural products has yielded promising antimicrobial agents. Their multifaceted mechanisms, including membrane disruption, oxidative stress induction, and enzyme inhibition, render them effective against various pathogens, including drug-resistant strains. Moreover, the potential for targeted drug delivery systems using these nanoparticles has opened new avenues for personalized medicine. Bioengineered metallic nanoparticles derived from natural sources represent a dynamic frontier in the battle against microbial infections. The current status of research underscores their remarkable antimicrobial efficacy and multifaceted mechanisms of action. Future prospects are bright, with opportunities for scalability and cost-effectiveness through sustainable synthesis methods. However, addressing toxicity, regulatory hurdles, and environmental considerations remains crucial. In conclusion, this review highlights the evolving landscape of bioengineered metallic nanoparticles, offering valuable insights into their current status and their potential to revolutionize antimicrobial therapy in the future.
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Affiliation(s)
- Jitendra Patel
- Gitam School of Pharmacy, GITAM (Deemed to be University), Hyderabad Campus, Rudraram, Sangareddy, Hyderabad, TS, 502329, India
| | - G Shiva Kumar
- Gitam School of Pharmacy, GITAM (Deemed to be University), Hyderabad Campus, Rudraram, Sangareddy, Hyderabad, TS, 502329, India
| | - Harekrishna Roy
- Department of Pharmaceutics, Nirmala College of Pharmacy, Mangalagiri, Guntur, Andhra Pradesh, 522503, India.
| | - Balaji Maddiboyina
- Department of Medical and Scientific Communications, Scientific Writing Services, Freyr Global Regulatory Solutions & Services, Phoenix SEZ, Hitech City, Gachibowli, Hyderabad, 500081, India.
| | - Stefano Leporatti
- CNR Nanotec-Istituto Di Nanotecnologia, C\O Campus EcotekneVia Monteroni, 3100, Lecce, Italy
| | - Raghvendra A Bohara
- D.Y. Patil Education Society (Deemed to be University), Kolhapur, MS, India.
- University of Galway, Galway, Ireland.
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Jing Q, Lu Y, Liu K, Yan Y, Zhang G. Evaluating the fire resistance and durability of cotton textiles treated with a phosphoramide phosphorus ester phosphate ammonium flame retardant. Int J Biol Macromol 2024; 262:130144. [PMID: 38360228 DOI: 10.1016/j.ijbiomac.2024.130144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/07/2024] [Accepted: 02/11/2024] [Indexed: 02/17/2024]
Abstract
The phosphoramide phosphorus ester phosphate ammonium (PPEPA) flame retardant was synthesized by phosphorus oxychloride and ethanolamine, and its structure was characterized by nuclear magnetic resonance and Fourier transform infrared spectroscopy (FTIR). Cotton textiles treated with 20 wt% PPEPA (CT-PPEPA3) would have high durability and flame retardance. The limiting oxygen index (LOI) of CT-PPEPA3 was found to be 46.5 %, while after undergoing 50 laundering cycles (LCs) following the AATCC 61-2013 3 A standard, the LOI only decreased to 31.4 %. Scanning electron microscopy and X-ray diffraction analyses suggested the penetration of PPEPA molecules into the interior of cotton fibers, resulting in a minor alteration of the cellulose crystal structure. The excellent durability, FTIR, and energy-dispersive X-ray of CT-PPEPA3 provided evidence for the formation of -N-P(=O)-O-C- and -O-P(=O)-O-C- covalent bonds between the PPEPA molecules and cellulose. The -N-P(=O)-O-C- bond exhibited a p-π conjugation effect, leading to enhanced stability and improved durability of the flame-retardant cotton textiles. Vertical flame, thermogravimetric, and cone calorimetry tests demonstrated that the CT-PPEPA3 underwent condensed-phase and synergistic flame retardation. Additionally, these finished cotton textiles retained adequate breaking strength and softness, making them suitable for various applications. In conclusion, the incorporation of the -N-P(=O)-ONH4 group into the phosphorus ester phosphate ammonium flame retardant demonstrated effective enhancement of the fire resistance and durability of treated cotton textiles.
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Affiliation(s)
- Qing Jing
- State Key Laboratory of Resource Insects, College of Sericulture Textile and Biomass Sciences, Southwest University, Chongqing 400715, PR China
| | - Yonghua Lu
- State Key Laboratory of Resource Insects, College of Sericulture Textile and Biomass Sciences, Southwest University, Chongqing 400715, PR China
| | - Kunling Liu
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yang Yan
- State Key Laboratory of Resource Insects, College of Sericulture Textile and Biomass Sciences, Southwest University, Chongqing 400715, PR China
| | - Guangxian Zhang
- State Key Laboratory of Resource Insects, College of Sericulture Textile and Biomass Sciences, Southwest University, Chongqing 400715, PR China.
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Shaaban MT, Mohamed BS, Zayed M, El-Sabbagh SM. Antibacterial, antibiofilm, and anticancer activity of silver-nanoparticles synthesized from the cell-filtrate of Streptomyces enissocaesilis. BMC Biotechnol 2024; 24:8. [PMID: 38321442 PMCID: PMC10848522 DOI: 10.1186/s12896-024-00833-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/23/2024] [Indexed: 02/08/2024] Open
Abstract
Silver nanoparticles (Ag-NPs) have a unique mode of action as antibacterial agents in addition to their anticancer and antioxidant properties. In this study, microbial nanotechnology is employed to synthesize Ag-NPs using the cell filtrate of Streptomyces enissocaesilis BS1. The synthesized Ag-NPs are confirmed by ultraviolet-visible (UV-Vis), Fourier transform infrared (FT-IR), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Also, the effects of different factors on Ag-NPs synthesis were evaluated to set the optimum synthesis conditions. Also, the antibacterial, antibiofilm, and anticancer activity of Ag-NPs was assessed. The X-ray diffraction (XRD) analysis confirmed the crystalline nature of the sample and validated that the crystal structure under consideration is a face-centered cubic (FCC) pattern. The TEM examination displayed the spherical particles of the Ag-NPs and their average size, which is 32.2 nm. Fourier transform infrared spectroscopy (FTIR) revealed significant changes in functionality after silver nanoparticle dispersion, which could be attributed to the potency of the cell filtrate of Streptomyces enissocaesilis BS1 to act as both a reducing agent and a capping agent. The bioactivity tests showed that our synthesized Ag-NPs exhibited remarkable antibacterial activity against different pathogenic strains. Also, when the preformed biofilms of Pseudomonas aeruginosa ATCC 9027, Salmonella typhi ATCC 12023, Escherichia coli ATCC 8739, and Staphylococcus aureus ATCC 6598 were exposed to Ag NPs 50 mg/ml for 24 hours, the biofilm biomass was reduced by 10.7, 34.6, 34.75, and 39.08%, respectively. Furthermore, the Ag-NPs showed in vitro cancer-specific sensitivity against human breast cancer MCF-7 cell lines and colon cancer cell line Caco-2, and the IC50 was 0.160 mg/mL and 0.156 mg/mL, respectively. The results of this study prove the ease and efficiency of the synthesis of Ag-NPs using actinomycetes and demonstrate the significant potential of these Ag-NPs as anticancer and antibacterial agents.
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Affiliation(s)
- Mohamed T Shaaban
- Botany and Microbiology Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
| | - Briksam S Mohamed
- Botany and Microbiology Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt.
| | - Muhammad Zayed
- Botany and Microbiology Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
| | - Sabha M El-Sabbagh
- Botany and Microbiology Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
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Ge J, Hu J, Cui S, Wang Y, Xu C, Liu W. Biosynthesis of Bt-Ag 2O nanoparticles using Bacillus thuringiensis and their pesticidal and antimicrobial activities. Appl Microbiol Biotechnol 2024; 108:157. [PMID: 38252171 PMCID: PMC10803387 DOI: 10.1007/s00253-023-12859-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 11/01/2023] [Accepted: 11/13/2023] [Indexed: 01/23/2024]
Abstract
Nanosilver oxide exhibits strong antibacterial and photocatalytic properties and has shown great application potential in food packaging, biochemical fields, and other fields involving diseases and pest control. In this study, Ag2O nanoparticles were synthesized using Bacillus thuringiensis (Bt-Ag2O NPs). The physicochemical characteristics of the Bt-Ag2O NPs were analyzed by UV‒vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), inductively coupled plasma emission spectrometry (ICP), high-resolution transmission electron microscopy (HR-TEM), and zeta potential. The phis-chemical characterization revealed that the Bt-Ag2O NPs are in spherical shape with the small particle size (18.24 nm), high crystallinity, well dispersity, and stability. The biopesticidal and antifungal effects of Bt-Ag2O NPs were tested against Tribolium castaneum, Aspergillus flavus, and Penicillium chrysogenum. The survival, growth, and reproduction of tested pests and molds were significantly inhibited by Bt-Ag2O NPs in a dose-dependent manner. Bt-Ag2O NPs showed higher pesticidal activities against T. castaneum than Bt and commercial Ag2O NPs. The LC50 values of Bt, Ag2O NPs, and Bt-Ag2O NPs were 0.139%, 0.072%, and 0.06% on day 14, respectively. The Bt-Ag2O NPs also showed well antifungal activities against A. flavus and P. chrysogenum, while it resulted a small inhibition zone than commercial Ag2O NPs did. In addition, A. flavus showed much more sensitive to Bt-Ag2O NP treatments, compared to P. chrysogenum. Our results revealed that Bt-Ag2O NPs synthesized using B. thuringiensis could act as pesticides and antifungal agents in stored-product fields. KEY POINTS: • Bt-Ag2O NPs could be synthesized using Bacillus thuringiensis (Bt). • The NPs showed a high degree of crystallinity, spherical shape, and small particle size. • The NPs also showed excellent insecticidal and antifungal activity.
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Affiliation(s)
- Jiajia Ge
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Jianzhong Hu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Sufen Cui
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China.
| | - Yirong Wang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Caijiayi Xu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Wenzhuo Liu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
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Farouk SM, Abu-Hussien SH, Abd-Elhalim BT, Mohamed RM, Arabe NM, Hussain AAT, Mostafa ME, Hemdan B, El-Sayed SM, Bakry A, Ebeed NM, Salah M, Elhariry H, Galal A. Biosynthesis and characterization of silver nanoparticles from Punica granatum (pomegranate) peel waste and its application to inhibit foodborne pathogens. Sci Rep 2023; 13:19469. [PMID: 37945578 PMCID: PMC10636021 DOI: 10.1038/s41598-023-46355-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023] Open
Abstract
Polyphenolics have been predicted to effectively develop antimicrobial agents for the food industry as food additives and promote human health. This study aims to synthesize pomegranate peel extract (PPE) with silver nanoparticles (AgNPs) against eight foodborne pathogens. Multispectroscopic analysis of UV-vis spectroscopy, Zeta potential, Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) analysis were used to characterize the interaction between PPE and AgNPs. Eight foodborne pathogenic strains (six bacterial and two fungal strains) Bacillus subtilis ATCC 6633, Enterococcus faecalis ATCC 29212, Escherichia coli ATCC 8379, Klebsiella pneumoniae ATCC 00607, Salmonella typhi DSM 17058, Shigella sonnei DSM 5570, Aspergillus flavus ATCC 9643, and Rhizopus oryzae ATCC 96382 were used to test the inhibitory potential of PPW-AgNPs. The reaction colour of PPE-AgNPs from yellow to brown indicated that the nanoparticles were successfully formed. The UV absorption of PPE-AgNPs was detected at 440 nm of 0.9 SPR. SEM image of PPE-AgNPs exhibited spherical shapes with a zeta potential of - 20.1 mV. PPE-AgNPs showed high antimicrobial activity against all tested strains. The highest inhibition activity of PPE-AgNPs was recorded for the B. subtilis strain followed by K. pneumonia, while the highest resistance was noticed for R. oryzae. The components of pomegranate peel were analyzed using gas chromatography-mass spectrometry (GC-MS). The major constituents of pomegranate peel is phenol (51.1%), followed by Isocitronellol (19.41%) and 1-Propanol, 2-(2-hydroxypropyl)- (16.05%). PPE is key in the simple, eco-friendly green synthesis of extracellular stable AgNPs as an alternative source for harmful chemical disinfectants.
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Affiliation(s)
- Salma M Farouk
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Samah H Abu-Hussien
- Department of Agricultural Microbiology, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt.
| | - Basma T Abd-Elhalim
- Department of Agricultural Microbiology, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Reham M Mohamed
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Naira M Arabe
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Ahmed A T Hussain
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Mostafa E Mostafa
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Bahaa Hemdan
- Environmental and Climate Change Research Institute, National Research Center, Giza, 1266, Egypt
| | - Salwa M El-Sayed
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Ashraf Bakry
- Department of Genetics, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Naglaa M Ebeed
- Department of Genetics, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Mahmoud Salah
- Department of Environmental Agricultural Science, Faculty of Graduate Studies and Environmental Research, Ain Shams University, Cairo, 11566, Egypt
- Prevention and Detection of Microbial and Chemicals Contamination in Food Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Hesham Elhariry
- Department of Food Science, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
| | - Ahmed Galal
- Department of Poultry Production, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, PO Box 68, Cairo, 11241, Egypt
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Dreger M, Adamczak A, Foksowicz-Flaczyk J. Antibacterial and Antimycotic Activity of Epilobium angustifolium L. Extracts: A Review. Pharmaceuticals (Basel) 2023; 16:1419. [PMID: 37895890 PMCID: PMC10609845 DOI: 10.3390/ph16101419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/25/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of this work was to provide an overview of available information on the antibacterial and antifungal properties of Epilobium angustifolium extracts. A literature search of Scopus, PubMed/Medline, and Google Scholar for peer-reviewed articles published between January 2000 and June 2023 was undertaken. A total of 23 studies were eligible for inclusion in this review. Significant variation of antimicrobial activity depending on the tested species and strains, type of extract solvent, or plant organs utilized for the extract preparation was found. E. angustifolium extracts were active against both Gram-positive and Gram-negative bacteria and showed antimycotic effects against the fungi of Microsporum canis and Trichophyton tonsurans and the dermatophytes Arthroderma spp. Greater susceptibility of Gram-positive than Gram-negative bacteria to fireweed extracts was found. A strong antibacterial effect was recorded for Staphylococcus aureus, Bacillus cereus, Micrococcus luteus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii including multi-drug resistant strains. E. angustifolium extract might find practical application as an antimicrobial in wound healing, components of cosmetic products for human and animals, or as food preservatives.
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Affiliation(s)
- Mariola Dreger
- Department of Biotechnology, Institute of Natural Fibres and Medicinal Plants—National Research Institute, Wojska Polskiego 71b, 60-630 Poznan, Poland
| | - Artur Adamczak
- Department of Breeding and Botany of Useful Plants, Institute of Natural Fibres and Medicinal Plants—National Research Institute, Kolejowa 2, 62-064 Plewiska, Poland;
| | - Joanna Foksowicz-Flaczyk
- Department of Bioproducts Engineering, Institute of Natural Fibres and Medicinal Plants—National Research Institute, Wojska Polskiego 71b, 60-630 Poznan, Poland;
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Teimouri M, Lalehzar SS. Evaluation of the therapeutic effect of dressing containing Silver (Ag coat) in the process of healing skin blisters caused by limb fractures: a clinical trial study. BMC Surg 2023; 23:101. [PMID: 37118690 PMCID: PMC10148518 DOI: 10.1186/s12893-023-02012-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/20/2023] [Indexed: 04/30/2023] Open
Abstract
BACKGROUND The main activity of the skin is to create a protective barrier against damage. Loss of the skin due to injury or disease and failure to regenerate the affected area may result in disability, infection, or even death. We conducted a clinical trial to evaluate the therapeutic effect of dressing containing silver in process of healing skin blisters caused by limb fractures. METHOD This is a pioneering randomized trial that compares the effectiveness of two dressings containing silver (Ag coat) and Gaz Vaseline among patients with skin blisters due to bone fractures who were randomly selected from patients referred to the Kashani Medical Training Center. There were two treatment groups containing 16 patients treated with Ag coat and 15 patients treated with Gaz Vaseline. Pictures were taken of blisters on days 0, 7, and 14 to evaluate the healing process. The amount of pain, duration of the visit (measured by minutes), and general condition of the wound were checked. The amount of pain, duration of visit (measured by minutes) and general condition of the wound was checked. All continuous and categorical data are presented as mean ± standard deviation (SD) and frequency (percentage), respectively. Paired sample T-test and repeated measure analysis of variance (ANOVA), Chi-squared test was used. All pictures were analyzed by Mosaic soft ward. RESULT During this study, there was no significant difference between the mean of age and BMI and frequency of gender in the two study groups (P > 0.05). There was a significant difference in mean between the duration of the visit, number of dressings, and net cost of dressing [Formula: see text]. In the macroscopic study and analysis for evaluation and comparing wound area with the Mosaic soft ward, there was significant relation in time (p1 = 0.00). There is no significant difference between the groups (p2 = 0.84). There was a significant difference between time and group (p3 = 0.00). On day 14 the wound area between groups had a significant difference (p4 = 0.00) (Table 3). In the VAS score there was a significant difference in time, and group (p1,2 = 0.00), there was no significant relation between time and group (p3 = 0.62). On all days the wound area between groups had a significant difference (p4 = 0.00). CONCLUSION In conclusion, Ag coat dressing, not only has a significant effect on wound healing but also, decreases pain, shorter visit time, and its more cost-effective.
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Affiliation(s)
- Mehdi Teimouri
- Department of Orthopedic Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahar Sadat Lalehzar
- Department of Orthopedic Surgery, Kashani University Hospital, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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Balážová Ľ, Wolaschka T, Rohaľová S, Daneu N, Stahorský M, Salayová A, Tkáčiková Ľ, Eftimová J. In Situ Gel with Silver Nanoparticles Prepared Using Agrimonia eupatoria L. Shows Antibacterial Activity. Life (Basel) 2023; 13:life13020573. [PMID: 36836930 PMCID: PMC9966964 DOI: 10.3390/life13020573] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Silver nanoparticles (Ag NPs) with antibacterial activity can be prepared in different ways. In our case, we used ecological green synthesis with Agrimonia eupatoria L. The plant extract was used with Ag NPs for the first time to prepare termosensitive in situ gels (ISGs). Such gels are used to heal human or animal skin and mucous membranes, as they can change from a liquid to solid state after application. Ag NPs were characterized with various techniques (FTIR, TEM, size distribution, zeta potential) and their antibacterial activity was tested against Staphylococcus aureus and Escherichia coli. In accordance with the TEM data, we prepared monodispersed spherical Ag NPs with an average size of about 20 nm. Organic active compounds from Agrimonia eupatoria L. were found on their surfaces using FTIR spectroscopy. Surprisingly, only the in situ gel with Ag NPs showed antibacterial activity against Escherichia coli, while Ag NPs alone did not. Ag NPs prepared via green synthesis using plants with medicinal properties and incorporated into ISGs have great potential for wound healing due to the antibacterial activity of Ag NPs and the dermatological activity of organic substances from plants.
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Affiliation(s)
- Ľudmila Balážová
- Department of Pharmaceutical Technology, Pharmacognosy and Botany, University of Veterinary Medicine and Pharmacy in Košice, 041 81 Kosice, Slovakia
- Correspondence: ; Tel.: +421-907-536-280
| | - Tomáš Wolaschka
- Department of Pharmaceutical Technology, Pharmacognosy and Botany, University of Veterinary Medicine and Pharmacy in Košice, 041 81 Kosice, Slovakia
| | - Simona Rohaľová
- Department of Pharmaceutical Technology, Pharmacognosy and Botany, University of Veterinary Medicine and Pharmacy in Košice, 041 81 Kosice, Slovakia
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, 601 77 Brno, Czech Republic
| | - Nina Daneu
- Advanced Materials Department, Jozef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - Martin Stahorský
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, 040 01 Kosice, Slovakia
| | - Aneta Salayová
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, University of Veterinary Medicine and Pharmacy in Košice, 041 81 Kosice, Slovakia
| | - Ľudmila Tkáčiková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, 041 81 Kosice, Slovakia
| | - Jarmila Eftimová
- Department of Pharmaceutical Technology, Pharmacognosy and Botany, University of Veterinary Medicine and Pharmacy in Košice, 041 81 Kosice, Slovakia
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