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Liao H, Wen J, Nie H, Ling C, Zhang L, Xu F, Dong X. Study on the inhibitory activity and mechanism of Mentha haplocalyx essential oil nanoemulsion against Fusarium oxysporum growth. Sci Rep 2024; 14:16064. [PMID: 38992117 PMCID: PMC11239933 DOI: 10.1038/s41598-024-67054-1] [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: 01/30/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024] Open
Abstract
Mentha haplocalyx essential oil (MEO) has demonstrated inhibitory effects on Fusarium oxysporum. Despite its environmentally friendly properties as a natural product, the limited water solubility of MEO restricts its practical application in the field. The use of nanoemulsion can improve bioavailability and provide an eco-friendly approach to prevent and control Panax notoginseng root rot. In this study, Tween 80 and anhydrous ethanol (at a mass ratio of 3) were selected as carriers, and the ultrasonic method was utilized to produce a nanoemulsion of MEO (MNEO) with an average particle size of 26.07 nm. Compared to MTEO (MEO dissolved in an aqueous solution of 2% DMSO and 0.1% Tween 80), MNEO exhibited superior inhibition against F. oxysporum in terms of spore germination and hyphal growth. Transcriptomics and metabolomics results revealed that after MNEO treatment, the expression levels of certain genes related to glycolysis/gluconeogenesis, starch and sucrose metabolism were significantly suppressed along with the accumulation of metabolites, leading to energy metabolism disorder and growth stagnation in F. oxysporum. In contrast, the inhibitory effect from MTEO treatment was less pronounced. Furthermore, MNEO also demonstrated inhibition on meiosis, ribosome function, and ribosome biogenesis in F. oxysporum growth process. These findings suggest that MNEO possesses enhanced stability and antifungal activity, which effectively hinders F. oxysporum through inducing energy metabolism disorder, meiotic stagnation, as well as ribosome dysfunction, thus indicating its potential for development as a green pesticide for prevention and control P. notoginseng root rot caused by F.oxyosporum.
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Affiliation(s)
- Hongxin Liao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650000, China
| | - Jinrui Wen
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650000, China
| | - Hongyan Nie
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650000, China
| | - Cuiqiong Ling
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650000, China
| | - Liyan Zhang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650000, China
| | - Furong Xu
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650000, China
| | - Xian Dong
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650000, China.
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2
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Ullah I, Khalil AT, Zia A, Hassan I, Shinwari ZK. Insight into the molecular mechanism, cytotoxic, and anticancer activities of phyto-reduced silver nanoparticles in MCF-7 breast cancer cell lines. Microsc Res Tech 2024; 87:1627-1639. [PMID: 38450823 DOI: 10.1002/jemt.24540] [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: 10/11/2023] [Revised: 01/10/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
This contribution insight on the cytotoxic and anticancer activities and molecular mechanism of phyto-reduced silver nanoparticles (AgNPs) in MCF-7 breast cancer cell lines. A simple, entirely green synthesis process was optimized for the phyto-reduction of AgNP (~12.7 nm) using aqueous leaf extracts of Indigofera heterantha. The structural and vibrational properties of biosynthesized AgNPs were extensively characterized using UV-Vis spectrophotometer, x-ray diffraction (XRD), dynamic light scattering (DLS), and Fourier transform Infrared spectroscopy (FTIR), while their shape and morphology was studied through scanning electron microscopy (SEM). The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell viability assay indicates concentration dependent inhibition with IC50, 27.93 ± 2.10 μg/mL against MCF-7 cells and 294.38 ± 3.87 μg/mL against L929 cells. The manifested anticancer mechanism in MCF-7 cells was extensively studied using Acridine orange/ethidium bromide (AO/EB), 4',6-diamidino-2-phenylindole (DAPI) and Annexin-V/propedium iodide fluorescence microscopic assays. The level of reactive oxygen species (ROS) was measured using DCFH-DA fluorescent spectroscopy. Overall, the results show that AgNPs exhibit cytotoxic and apoptotic effect on breast cancer MCF-7 cells by damaging membrane integrity and nuclear fragmentation due to oxidative stress generated by elevated level of ROS. RESEARCH HIGHLIGHTS: Biomimetic synthesis of nano dimension size silver nanoparticles (AgNPs). Characterization of AgNPs through UV-Vis, DLS, XRD, FTIR, and SEM. Cytotoxic and anticancer effects of the biosynthesized AgNPs in L929 fibroblast cells and MCF7 breast cancer respectively. Determination of morphological, and nuclear changes triggered by AgNPs in MCF 7 breast cancer cells using fluorescent microscopy and flow cytometry. Apoptosis induction by AgNPs in cancer cells through oxidative stress generated by reactive oxygen species (ROS).
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Affiliation(s)
- Ikram Ullah
- Department of Biotechnology and Genetic Engineering, Faculty of Biological and Health Sciences, Hazara University Mansehra, Mansehra, Pakistan
| | - Ali Talha Khalil
- Department of Pathology, Medical Technology Institute (MTI), Lady Reading Hospital, Peshawar, Pakistan
| | - Asad Zia
- Public Health Reference Laboratory, Khyber Medical University, Peshawar, Pakistan
| | - Ishtiaq Hassan
- Department of Biotechnology and Genetic Engineering, Faculty of Biological and Health Sciences, Hazara University Mansehra, Mansehra, Pakistan
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Ahmed H, Zaky MY, M A Rashed M, Almoiliqy M, Al-Dalali S, Eldin ZE, Bashari M, Cheikhyoussef A, Alsalamah SA, Ibrahim Alghonaim M, Alhudhaibi AM, Wang J, Jiang LP. UPLC-qTOF-MS phytochemical profile of Commiphora gileadensis leaf extract via integrated ultrasonic-microwave-assisted technique and synthesis of silver nanoparticles for enhanced antibacterial properties. ULTRASONICS SONOCHEMISTRY 2024; 107:106923. [PMID: 38815489 PMCID: PMC11157276 DOI: 10.1016/j.ultsonch.2024.106923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/15/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024]
Abstract
The utilization of metallic nanoparticles in bio-nanofabrication holds significant potential in the field of applied research. The current study applied and compared integrated ultrasonic-microwave-assisted extraction (US/MICE), ultrasonic extraction (USE), microwave-assisted extraction (MICE), and maceration (MAE) to extract total phenolic content (TPC). In addition, the study examined the antioxidant activity of Commiphora gileadensis (Cg) leaf. The results demonstrated that the TPC of US/MICE exhibited the maximum value at 59.34 ± 0.007 mg GAE/g DM. Furthermore, at a concentration of 10 μg/mL, TPC displayed a significant scavenging effect on DPPH (56.69 %), with an EC50 (6.48 μg/mL). Comprehensive metabolite profiling of the extract using UPLC-qTOF-MS/MS was performed to identify active agents. A total of 64 chromatographic peaks were found, out of which 60 were annotated. The most prevalent classes of metabolites found were polyphenols (including flavonoids and lignans), organic compounds and their derivatives, amides and amines, terpenes, and fatty acid derivatives. Transmission electron microscopy (TEM) revealed the aggregate size of the synthesized nanoparticles and the spherical shape of C. gileadensis-mediated silver nanoparticles (Cg-AgNPs). The nanoparticles had a particle size ranging from 7.7 to 42.9 nm. The Cg-AgNPs exhibited more inhibition zones against S. aureus and E. coli. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of Cg-extract, AgNPs, and Cg-AgNPs were also tested. This study demonstrated the feasibility of using combined ultrasonic-microwave-assisted extraction to separate and extract chemicals from C. gileadensis on a large scale. These compounds have potential use in the pharmaceutical industry. Combining antibacterial and biocompatible properties in materials is vital for designing new materials for biomedical applications. Additionally, the results showed that the biocompatibility of the Ag-NPs using C. gileadensis extracts demonstrated outstanding antibacterial properties.
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Affiliation(s)
- Hani Ahmed
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Mohamed Y Zaky
- Molecular Physiology Division, Faculty of Science, Beni-Suef University, Egypt
| | - Marwan M A Rashed
- School of Biological and Food Engineering, Suzhou University, Suzhou 234000, Anhui, China
| | - Marwan Almoiliqy
- Department of Medicine and Health Science, College of Medicine and Health Science, University of Science and Technology, Aden, Yemen
| | - Sam Al-Dalali
- Department of Food Science and Technology, Ibb University, Ibb 70270, Yemen
| | - Zienab E Eldin
- Molecular Physiology Division, Faculty of Science, Beni-Suef University, Egypt
| | - Mohanad Bashari
- Department of Food Science and Human Nutrition, College of Applied and Health Sciences, A'Sharqiyah University, Ibra, Oman
| | - Ahmad Cheikhyoussef
- Science and Technology Division, Multidisciplinary Research Centre, University of Namibia, Windhoek, Namibia
| | - Sulaiman A Alsalamah
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Mohammed Ibrahim Alghonaim
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Abdulrahman M Alhudhaibi
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Jinpeng Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing, China; School of Food and Health, Beijing Technology and Business University, Beijing, China.
| | - Li-Ping Jiang
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, Jiangxi, China
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Liu Y. The effect of classroom-based assessment (CBA) on Chinese EFL learners' speaking performance, engagement, and willingness to communicate: Undergraduate students' perceptions. Heliyon 2024; 10:e32629. [PMID: 38975164 PMCID: PMC11226770 DOI: 10.1016/j.heliyon.2024.e32629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 05/29/2024] [Accepted: 06/06/2024] [Indexed: 07/09/2024] Open
Abstract
CBA has emerged as a prominent pedagogical approach aimed at intertwining assessment within the instructional process, effectively fostering student learning. In English as a Foreign Language (EFL) education, CBA has garnered considerable attention, given its potential to enhance language learners' engagement, speaking proficiency, and willingness to communicate. This mixed-method research study delves into the impact of Classroom-Based Assessment (CBA) on the speaking performance, engagement, and willingness to communicate of undergraduate Chinese EFL learners. The study involved 90 Chinese EFL learners in the quantitative phase and 25 in the qualitative phase. Data collection comprised three questionnaires and an interview checklist. The data analysis employed inferential statistics (t-tests) for the quantitative data and thematic analysis for the qualitative insights. The findings of this study reveal that CBA exerts a significant influence on language learners' engagement, speaking abilities, and willingness to communicate. The quantitative results, as indicated by t-tests, indicate noteworthy improvements in these key aspects when CBA is integrated into the classroom environment. Moreover, the qualitative phase of the study, employing thematic analysis, uncovered five distinct ways through which CBA impacts the main variables under investigation. This research elucidates the multifaceted influence of CBA on undergraduate Chinese EFL learners. It not only demonstrates the quantitative impact on engagement, speaking skills, and willingness to communicate but also offers valuable qualitative insights into the diverse ways through which CBA enhances the language learning experience. These findings underscore the significance of integrating CBA into EFL classrooms as a potent tool for optimizing learner outcomes.
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Affiliation(s)
- Yawen Liu
- College of Foreign Languages, Quzhou University, Quzhou, 324000, China
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Kumar D, Mariyam S, Gupta KJ, Thiruvengadam M, Sampatrao Ghodake G, Xing B, Seth CS. Comparative investigation on chemical and green synthesized titanium dioxide nanoparticles against chromium (VI) stress eliciting differential physiological, biochemical, and cellular attributes in Helianthus annuus L. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172413. [PMID: 38631632 DOI: 10.1016/j.scitotenv.2024.172413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024]
Abstract
Nanotechnology is a new scientific area that promotes unique concepts to comprehend the optimal mechanics of nanoparticles (NPs) in plants under heavy metal stress. The present investigation focuses on effects of synthetic and green synthesized titanium dioxide nanoparticles (TiO2 NPs and gTiO2 NPs) against Cr(VI). Green TiO2 NPs have been produced from plant leaf extract (Ricinus communis L.). Synthesis was confirmed employing an array of optical spectroscopic and electron microscopic techniques. Chromium strongly accelerated H2O2 and MDA productions by 227 % and 266 % at highest chromium concentration (60 mg/kg of soil), respectively, and also caused DNA damage, and decline in photosynthesis. Additionally, anomalies were observed in stomatal cells with gradual increment in chromium concentrations. Conversely, foliar applications of TiO2 NPs and gTiO2 NPs considerably mitigated chromium stress. Sunflower plants treated with modest amounts of green TiO2 NPs had significantly better growth index compared to chemically synthesized ones. Principal component analysis highlighted the variations among photosynthetic attributes, oxidative stress markers, and antioxidant defense systems. Notably, gTiO2 supplementation to the Cr(VI) strained plants minimized PC3 production which is a rare report so far. Conclusively, gTiO2 NPs have been identified to be promising nano-based nutrition resource for farming applications.
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Affiliation(s)
- Dharmendra Kumar
- Department of Botany, University of Delhi, New Delhi 110007, Delhi, India
| | - Safoora Mariyam
- Department of Botany, University of Delhi, New Delhi 110007, Delhi, India
| | | | - Muthu Thiruvengadam
- Department of Applied Bioscience, College of Life and Environmental Sciences, Konkuk University, Seoul 05029, Republic of Korea
| | - Gajanan Sampatrao Ghodake
- Department of Biological and Environmental Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
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Hedayatipanah M, Gholami L, Farmany A, Alikhani MY, Hooshyarfard A, Hashemiyan FS. Green synthesis of silver nanoparticles and evaluation of their effects on the Porphyromonas gingivalis bacterial biofilm formation. Clin Exp Dent Res 2024; 10:e887. [PMID: 38798089 PMCID: PMC11128748 DOI: 10.1002/cre2.887] [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: 10/28/2023] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 05/29/2024] Open
Abstract
OBJECTIVE This study aimed to evaluate the impact of silver nanoparticles (AgNPs) synthesized from propolis on the formation of Porphyromonas gingivalis biofilms. MATERIAL AND METHODS AgNPs were synthesized from propolis, and their inhibitory effect on P. gingivalis biofilm formation was assessed. Different concentrations of AgNPs (0.1%, 0.3%, and 0.5%) were tested to determine the dose-dependent antibacterial activity. RESULTS The results of this study indicated that AgNPs exhibited an inhibitory effect on P. gingivalis biofilm formation. The antibacterial activity of AgNPs was dose-dependent, with concentrations of 0.1%, 0.3%, and 0.5% showing effectiveness. Notably, the concentration of 0.5% demonstrated the most significant anti-biofilm formation activity. CONCLUSION The results of this study suggest that AgNPs synthesized from propolis have potential as an effective option for enhancing periodontal treatment outcomes. The inhibitory effect of AgNPs on P. gingivalis biofilm formation highlights their potential as alternative antimicrobial agents in the management of periodontal diseases.
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Affiliation(s)
- Morad Hedayatipanah
- Department of Periodontics, Faculty of DentistryHamadan University of Medical SciencesHamadanIran
| | - Leila Gholami
- Department of Periodontics, Faculty of DentistryHamadan University of Medical SciencesHamadanIran
| | - Abbas Farmany
- Dental Implant Research Center, Faculty of DentistryHamadan University of Medical SciencesHamadanIran
| | - Mohammad Yusef Alikhani
- Department of Microbiology, Faculty of Medicine, Infection Disease Research CenterHamadan University of Medical SciencesHamadanIran
| | - Amirarsalan Hooshyarfard
- Department of Periodontics, Dental Material Research Center, Faculty of Dentistry, Tehran Medical SciencesIslamic Azad UniversityTehranIran
| | - Fahime Sadat Hashemiyan
- Department of Periodontics, Faculty of DentistryQazvin University of Medical SciencesQazvinIran
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Nayak R, Rai VK, Pradhan D, Halder J, Rajwar TK, Dash P, Das C, Mishra A, Mahanty R, Saha I, Manoharadas S, Kar B, Ghosh G, Rath G. Exploring the Biofilm Inhibition Potential of a Novel Phytic Acid-Crosslinked Chitosan Nanoparticle: In Vitro and In Vivo Investigations. AAPS PharmSciTech 2024; 25:106. [PMID: 38724834 DOI: 10.1208/s12249-024-02829-3] [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: 02/28/2024] [Accepted: 05/01/2024] [Indexed: 07/19/2024] Open
Abstract
The primary factor underlying the virulence of Candida albicans is its capacity to form biofilms, which in turn leads to recurrent complications. Over-the-counter antifungal treatments have proven ineffective in eliminating fungal biofilms and the inflammatory cytokines produced during fungal infections. Chitosan nanoparticles offer broad and versatile therapeutic potential as both antifungal agents and carriers for antifungal drugs to combat biofilm-associated Candida infections. In our study, we endeavoured to develop chitosan nanoparticles utilising chitosan and the antifungal crosslinker phytic acid targeting C. albicans. Phytic acid, known for its potent antifungal and anti-inflammatory properties, efficiently crosslinks with chitosan. The nanoparticles were synthesised using the ionic gelation technique and subjected to analyses including Fourier transform infrared spectroscopy, dynamic light scattering, and zeta potential analysis. The synthesised nanoparticles exhibited dimensions with a diameter (Dh) of 103 ± 3.9 nm, polydispersity index (PDI) of 0.33, and zeta potential (ZP) of 37 ± 2.5 mV. These nanoparticles demonstrated an antifungal effect with a minimum inhibitory concentration (MIC) of 140 ± 2.2 µg/mL, maintaining cell viability at approximately 90% of the MIC value and reducing cytokine levels. Additionally, the nanoparticles reduced ergosterol content and exhibited a 62% ± 1.2 reduction in biofilm susceptibility, as supported by colony-forming unit (CFU) and XTT assays-furthermore, treatment with nanoparticles reduced exopolysaccharide production and decreased secretion of aspartyl protease by C. albicans. Our findings suggest that the synthesised nanoparticles effectively combat Candida albicans infections. In vivo studies conducted on a mouse model of vaginal candidiasis confirmed the efficacy of the nanoparticles in combating fungal infections in vivo.
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Affiliation(s)
- Reena Nayak
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Vineet Kumar Rai
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Deepak Pradhan
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Jitu Halder
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Tushar Kanti Rajwar
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Priyanka Dash
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Chandan Das
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Ajit Mishra
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Ritu Mahanty
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Ivy Saha
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Salim Manoharadas
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box. 2454, 11451, Riyadh, Saudi Arabia
| | - Biswakanth Kar
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Goutam Ghosh
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India
| | - Goutam Rath
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, Odisha, 751003, India.
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Omer SN, Shanmugam V. Exploring the antibiofilm and toxicity of tin oxide nanoparticles: Insights from in vitro and in vivo investigations. Microb Pathog 2024; 190:106639. [PMID: 38616002 DOI: 10.1016/j.micpath.2024.106639] [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: 11/02/2023] [Revised: 03/29/2024] [Accepted: 04/01/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND INFORMATION The advancement of biological-mediated nanoscience towards higher levels and novel benchmarks is readily apparent, owing to the use of non-toxic synthesis processes and the incorporation of various additional benefits. This study aimed to synthesize stable tin oxide nanoparticles (SnO2-NPs) using S. rhizophila as a mediator. METHODS The nanoparticles that were created by biosynthesis was examined using several analytical techniques, including Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM), X-ray diffraction (XRD), UV-visible (UV-vis) spectroscopy, and energy dispersive X-ray spectroscopy (EDS). RESULTS The results obtained from the characterization techniques suggest that S. rhizophila effectively catalyzed the reduction of SnCl2 to SnO2-NPs duration of 90 min at ambient temperature with the ƛmax of 328 nm. The size of the nano crystallite formations was measured to be 23 nm. The present study investigates nanoscale applications' antibacterial efficacy against four bacterial strains, including Klebsiella Sp, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. The observed zone of inhibition for the nanoparticles (NPs) varied from 10 to 25 mm. The research findings demonstrate that the nanoparticles (NPs) are effective as antibacterial, phytotoxic, and cytotoxic agents.
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Affiliation(s)
- Soghra Nashath Omer
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, TN, India
| | - Venkatkumar Shanmugam
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, TN, India.
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Kannan KP, Gunasekaran V, Sreenivasan P, Sathishkumar P. Recent updates and feasibility of nanodrugs in the prevention and eradication of dental biofilm and its associated pathogens-A review. J Dent 2024; 143:104888. [PMID: 38342369 DOI: 10.1016/j.jdent.2024.104888] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/25/2024] [Accepted: 02/08/2024] [Indexed: 02/13/2024] Open
Abstract
OBJECTIVES Dental biofilm is one of the most prevalent diseases in humans, which is mediated by multiple microorganisms. Globally, half of the human population suffers from dental biofilm and its associated diseases. In recent trends, nano-formulated drugs are highly attractive in the treatment of dental biofilms. However, the impact of different types of nanodrugs on the dental biofilm and its associated pathogens have not been published till date. Thus, this review focuses on the recent updates, feasibility, mechanisms, limitations, and regulations of nanodrugs applications in the prevention and eradication of dental biofilm. STUDY SELECTION, DATA AND SOURCES A systematic search was conducted in PubMed/Google Scholar/Scopus over the past five years covering the major keywords "nanodrugs, metallic nanoparticles, metal oxide nanoparticles, natural polymers, synthetic polymers, biomaterials, dental biofilm, antibiofilm mechanism, dental pathogens", are reviewed in this study. Nearly, 100 scientific articles are selected in this relevant topic published between 2019 and 2023. Data from the selected studies dealing with nanodrugs used for biofilm treatment was qualitatively analyzed. CONCLUSIONS The nanodrugs such as silver nanoparticles, gold nanoparticles, selenium nanoparticles, zinc oxide nanoparticles, copper oxide nanoparticles, titanium oxide nanoparticles, hydroxyapatite nanoparticles and these inorganic nanoparticles incorporated polymer-based nanocomposites, organic/inorganic nanoparticles mediated antimicrobial photodynamic therapy exhibits an excellent antibacterial and antibiofilm activity towards dental pathogens. Finally, this review highlights that bioinspired nanodrugs will be very useful to control the dental biofilm and its associated diseases. CLINICAL SIGNIFICANCE Microbial influence on the oral environment is unavoidable; therefore, curing such dental biofilms and pathogens is essential for the impactful reflection of applying biocompatible treatments. In this direction, the current review explains the demand for the nanodrug in inhibiting biofilms for the effective exploration of employing treatments.
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Affiliation(s)
- Kannika Parameshwari Kannan
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai 600 077, India
| | - Vinothini Gunasekaran
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai 600 077, India
| | - Pavithra Sreenivasan
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai 600 077, India
| | - Palanivel Sathishkumar
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai 600 077, India.
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Ghasemi S, Dabirian S, Kariminejad F, Koohi DE, Nemattalab M, Majidimoghadam S, Zamani E, Yousefbeyk F. Process optimization for green synthesis of silver nanoparticles using Rubus discolor leaves extract and its biological activities against multi-drug resistant bacteria and cancer cells. Sci Rep 2024; 14:4130. [PMID: 38374139 PMCID: PMC10876668 DOI: 10.1038/s41598-024-54702-9] [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: 11/13/2023] [Accepted: 02/15/2024] [Indexed: 02/21/2024] Open
Abstract
Multi-drug resistant (MDR) bacteria are considered a serious public health threat. Also, increasing rate of resistance to anticancer drugs, as well as their toxicity, is another point of concern. Therefore, the new antibacterial and anticancer agents are always needed. The synthesizing silver nanoparticles (AgNPs) using medicinal plants, is an effective approach for developing novel antibacterial and anticancer agents. Rubus discolor, a native species of the Caucasus region, produces leaves that are typically discarded as a by-product of raspberry production. The present study has focused on optimizing the green synthesis of AgNPs using R. discolor leaves extract through response surface methodology. The optimal values for AgNPs synthesis were an AgNO3 concentration of 7.11 mM, a time of 17.83 h, a temperature of 56.51 °C, and an extract percentage of 29.22. The production of AgNPs was confirmed using UV-visible spectroscopy (λmax at 456.01 nm). TEM analysis revealed well-dispersed AgNPs (an average size of 37 nm). The XRD analysis confirmed the crystalline structure. The EDX detected a strong peak at 3 keV corresponded to Ag. The zeta potential value (- 44.2 mV) indicated the stability of nanoparticles. FT-IR spectra showed the presence of various functional groups from plant compounds, which play an important role in the capping and bio-reduction processes. The AgNPs revealed impressive antibacterial activities against MDR Escherichia coli and Pseudomonas aeruginosa (MIC ranging from 0.93 to 3.75 mg ml-1). The phytochemical analysis indicated the presence of phenolics, tannins, and flavonoids on the surface of AgNPs. They also showed significant cytotoxic effects on A431, MCF-7, and HepG2 cells (IC50 values ranging from 11 to 49.1 µg ml-l).
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Affiliation(s)
- Saeed Ghasemi
- Department of Medicinal Chemistry, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Sara Dabirian
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Faezeh Kariminejad
- Department of Pharmacognosy, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Diba Eghbali Koohi
- Department of Pharmacognosy, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Mehran Nemattalab
- Department of Pharmaceutics, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Sina Majidimoghadam
- Department of Pharmacognosy, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Ehsan Zamani
- Department of Pharmacology and Toxicology, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Fatemeh Yousefbeyk
- Department of Pharmacognosy, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran.
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11
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Han R, Alibakhshi G, Lu L, Labbafi A. Digital communication activities and EFL learners' willingness to communicate and engagement: Exploring the intermediate language learners' perceptions. Heliyon 2024; 10:e25213. [PMID: 38333790 PMCID: PMC10850894 DOI: 10.1016/j.heliyon.2024.e25213] [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: 08/28/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024] Open
Abstract
EFL/ESL teachers have used digital communication activities to teach language skills. However, the effect of digital communication activities on EFL learners' Willingness to Communicate (WTC) in classrooms and learner engagement has yet to be well investigated. This study examined the influence of digital communication activities on the engagement and willingness to communicate of intermediate English as a Foreign Language (EFL) learners. It also assessed the potential advantages of integrating digital communication into language learning contexts. A mixed-methods approach involving pretest-posttest comparisons and qualitative interviews was employed. In the quantitative phase, four intact classes of 80 intermediate Chinese EFL learners were recruited and assigned to control and experimental groups. They attempted the scales (WTC and engagement) before and after treatment. However, 20 EFL learners exposed to digital communication activities were interviewed. The research revealed notable enhancements in affective, cognitive, and behavioral engagement among the experimental group. Moreover, a substantial positive effect on EFL learners' willingness to communicate was observed, particularly in speaking, writing, reading, and comprehension activities. Findings have practical implications for EFL teachers and learners to use digital communication activities to enhance the learners' WTC in the classroom and different aspects of engagement.
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Affiliation(s)
- Ruyu Han
- Foreign Language Teaching Department, Shanxi Finance and Taxation College, Taiyuan, China
| | | | - Lu Lu
- School of Foreign Languages, Wuhan Qingchuan University, Wuhan, China
| | - Akram Labbafi
- English Language Teaching, Islamic Azad University, Maraghe Branch, Maraghe, Iran
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12
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Taipe Huisa AJ, Estrella Josende M, Gelesky MA, Fernandes Ramos D, López G, Bernardi F, Monserrat JM. Açaí (Euterpe oleracea Mart.) green synthesis of silver nanoparticles: antimicrobial efficacy and ecotoxicological assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:12005-12018. [PMID: 38227263 DOI: 10.1007/s11356-024-31949-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/05/2024] [Indexed: 01/17/2024]
Abstract
The synthesis of silver nanoparticles (AgNPs) is usually based on expensive methods that use or generate chemicals that can negatively impact the environment. Our study presents a simple one-step synthesis process for obtaining AgNP using an aqueous extract of Amazonian fruit açai (Euterpe oleracea Mart.) as the reducing and stabilizing agents. The bio-synthesized AgNP (bio-AgNP) were comprehensively characterized by diverse techniques, and as a result, 20-nm spherical particles (transmission electron microscopy) were obtained. X-ray diffraction analysis (XRD) confirmed the presence of crystalline AgNP, and Fourier-transform infrared spectroscopy (FT-IR) suggested that polyphenolic compounds of açaí were present on the surface. The bio-AgNP showed antimicrobial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Acinetobacter baumannii. In Caenorhabditis elegans exposed to 10 μg/L bio-AgNP for 96 h, there were no significant effects on growth, reproduction, or reactive oxygen species (ROS) concentration; however, there was an increase in superoxide dismutase (SOD) and glutathione-S-transferase (GST) enzymatic activity. In contrast, when worms were exposed to chemically synthesized AgNP (PVP-AgNP), an increase in ROS, SOD, and GST activity and a reduction in oxidative stress resistance were observed. In conclusion, our study not only showcased the potential of açaí in the simple and rapid production of AgNP but also highlighted the broad-spectrum antimicrobial activity of the synthesized nanoparticles using our protocol. Moreover, our findings revealed that these AgNPs exhibited reduced toxicity to C. elegans at environmentally realistic concentrations compared with PVP-AgNP.
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Affiliation(s)
- Andy Joel Taipe Huisa
- Physiological Sciences Post Graduation Program, Institute of Biological Sciences (ICB), Federal University of Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Marcelo Estrella Josende
- Physiological Sciences Post Graduation Program, Institute of Biological Sciences (ICB), Federal University of Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Marcos Alexandre Gelesky
- Technological and Environmental Chemistry Post Graduation Program. School of Chemistry and Food (EQA), Federal University of Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Daniela Fernandes Ramos
- Medicine Faculty (FAMED), Federal University of Rio Grande (FURG), Rio Grande, RS, Brazil
- Post Graduation Program in Health Sciences, FURG, Rio Grande, RS, Brazil
| | | | - Fabiano Bernardi
- Physics Institute, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - José María Monserrat
- Physiological Sciences Post Graduation Program, Institute of Biological Sciences (ICB), Federal University of Rio Grande (FURG), Rio Grande, RS, Brazil.
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13
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Talib H, Mehmood A, Amjad MS, Mustafa A, Khan MAR, Raffi M, Khan RT, Ahmad KS, Qureshi H. Antibacterial, antioxidant, and anticancer potential of green fabricated silver nanoparticles made from Viburnum grandiflorum leaf extract. BOTANICAL STUDIES 2024; 65:4. [PMID: 38252177 PMCID: PMC10803688 DOI: 10.1186/s40529-024-00411-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 01/14/2024] [Indexed: 01/23/2024]
Abstract
BACKGROUND Recently, researchers are focusing on creating new tools to combat the antibiotic resistant bacteria and malignancy issues, which pose significant threats to humanity. Biosynthesized silver nanoparticles (AgNPs) are thought to be a potential solution to these issues. The biosynthesis method, known for its environmentally friendly and cost-effective characteristics, can produce small-sized AgNPs with antimicrobial and anticancer properties. In this study, AgNPs were bio-fabricated from the distilled water and methanolic extracts of Viburnum grandiflorum leaves. Physio-chemical characterization of the bio-fabricated AgNPs was conducted using UV-visible spectroscopy, scanning electron microscopy, energy dispersive X-ray, and X-ray diffraction analysis. RESULTS AgNPs produced from the methanol extract were smaller in size (12.28 nm) compared to those from the aqueous extract (17.77 nm). The bioengineered AgNPs exhibited a circular shape with a crystalline nature. These biosynthesized AgNPs demonstrated excellent bactericidal activity against both gram-negative (Pseudomonas aeruginosa) and gram-positive (Staphylococcus aureus) bacteria. Highest antibacterial activity was observed with the methanol extract against P. aeruginosa (14.66 ± 0.74 mm). AgNPs from the methanol extract also displayed the highest antioxidant activity, with an IC50 value of 188.00 ± 2.67 μg/mL against 2,2-diphenyl-1-picrylhydrazyl (DPPH). Furthermore, AgNPs exhibited notable cytotoxic activity against Rhabdomyosarcoma cell line (RD cell) of human muscle cancer cell. The IC50 values calculated from the MTT assay were 26.28 ± 1.58 and 21.49 ± 1.44 μg/mL for AgNPs synthesized from aqueous and methanol extracts, respectively. CONCLUSION The methanol extract of V. grandiflorum leaves demonstrates significant potential for synthesizing AgNPs with effective antibacterial, antioxidant, and anticancer actions, making them applicable in various biomedical applications.
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Affiliation(s)
- Hina Talib
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Kashmir, 12350, Pakistan
| | - Ansar Mehmood
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Kashmir, 12350, Pakistan.
| | - Muhammad Shoaib Amjad
- Department of Botany, Women University of Azad Jammu and Kashmir Bagh, Bagh, 12500, Pakistan.
- Birmingham Institute of Forest Research, University of Birmingham, Birmingham, B15 2TT, UK.
| | - Amna Mustafa
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Kashmir, 12350, Pakistan
| | | | - Muhammad Raffi
- Department of Materials Engineering, National Institute of Lasers and Optronics (NILOP), Lehtrar Road, Nilore, Islamabad, 45650, Pakistan
| | - Rizwan Taj Khan
- Department of Botany, University of Azad Jammu & Kashmir, Muzaffarabad, Pakistan
| | - Khawaja Shafique Ahmad
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Kashmir, 12350, Pakistan
| | - Huma Qureshi
- Department of Botany, University of Chakwal, Chakwal, 48800, Pakistan
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14
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Dhir R, Chauhan S, Subham P, Kumar S, Sharma P, Shidiki A, Kumar G. Plant-mediated synthesis of silver nanoparticles: unlocking their pharmacological potential-a comprehensive review. Front Bioeng Biotechnol 2024; 11:1324805. [PMID: 38264582 PMCID: PMC10803431 DOI: 10.3389/fbioe.2023.1324805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024] Open
Abstract
In recent times, nanoparticles have experienced a significant upsurge in popularity, primarily owing to their minute size and their remarkable ability to modify physical, chemical, and biological properties. This burgeoning interest can be attributed to the expanding array of biomedical applications where nanoparticles find utility. These nanoparticles, typically ranging in size from 10 to 100 nm, exhibit diverse shapes, such as spherical, discoidal, and cylindrical configurations. These variations are not solely influenced by the manufacturing processes but are also intricately linked to interactions with surrounding stabilizing agents and initiators. Nanoparticles can be synthesized through physical or chemical methods, yet the biological approach emerges as the most sustainable and eco-friendly alternative among the three. Among the various nanoparticle types, silver nanoparticles have emerged as the most encountered and widely utilized due to their exceptional properties. What makes the synthesis of silver nanoparticles even more appealing is the application of plant-derived sources as reducing agents. This approach not only proves to be cost-effective but also significantly reduces the synthesis time. Notably, silver nanoparticles produced through plant-mediated processes have garnered considerable attention in recent years due to their notable medicinal capabilities. This comprehensive review primarily delves into the diverse medicinal attributes of silver nanoparticles synthesized using plant-mediated techniques. Encompassing antimicrobial properties, cytotoxicity, wound healing, larvicidal effects, anti-angiogenesis activity, antioxidant potential, and antiplasmodial activity, the paper extensively covers these multifaceted roles. Additionally, an endeavor is made to provide an elucidated summary of the operational mechanisms underlying the pharmacological actions of silver nanoparticles.
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Affiliation(s)
- Rajan Dhir
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Sakshi Chauhan
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Praddiuman Subham
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Saksham Kumar
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Pratham Sharma
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Amrullah Shidiki
- Department of Microbiology, National Medical College and Teaching Hospital, Birgunj, Nepal
| | - Gaurav Kumar
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
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Vishaka S, Nehal Safiya S, Binigha M, Carmelin DS, Geetha Sravanthy P, Snega R, Surya M, Saravanan M. Evaluation of Antibacterial, Antioxidant, Anti-inflammatory and Anticancer Efficacy of Titanium-Doped Graphene Oxide Nanoparticles. Cureus 2024; 16:e51737. [PMID: 38318546 PMCID: PMC10840046 DOI: 10.7759/cureus.51737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/04/2024] [Indexed: 02/07/2024] Open
Abstract
INTRODUCTION The current development of nanoparticles (NPs) with significant antibacterial properties, low cost and low toxicity has made it possible to develop novel techniques for treatments in the medical field. The titanium metal oxide, when combined with a carbonaceous material like graphene, which has excellent absorbing capacity, is efficient in loading drugs and thus helps in drug delivery and also in biomedical applications like anticancer, anti-inflammatory, antioxidant, and antibacterial activities. MATERIALS AND METHODS Titanium-doped graphene oxide nanoparticles (Ti/GO-NPs) were processed by the one-pot synthesis method; further characterization was performed by using UV-visible spectroscopy, Fourier transform-infrared spectroscopy (FT-IR), field emission electron microscopy (FE-SEM), and energy-dispersive X-ray spectroscopy (EDX) analysis and biomedical applications like anticancer, anti-inflammatory, antioxidant and antibacterial activities. RESULTS The synthesized end product of Ti/GO-NPs showed a creamy white appearance. Subsequent characterization studies of UV-Vis spectroscopy revealed a peak level of 373 nm at 24 hours and 404 nm after 48 hours. FT-IR analysis exhibited a broad absorption band within the range of 1000-3500 cm-1, which was attributed to various chemical compounds of C-Br, C-I stretching, C=C bending, S=O stretching, O=H stretching, C=C stretching, H bonded and OH stretching to different absorbance wavelength ranges. SEM analysis exhibited quasi-spherical-shaped Ti/GO-NPs with an average particle size of 50- 100 nm and EDX analysis showed the elemental composition of 32.3% titanium 43.9% oxygen and 2.5% carbon. The antibacterial activity showed moderate activity against Staphylococcus aureus and no activity against Pseudomonas aeruginosa, Enterococcus faecalis and E. coli. The antioxidant activity exhibited 88% at 50 µg/mL concentration, the anti-inflammatory activity revealed 80% at 80 µg/mL concentration and the anticancer activity showed 21% at 150 µg/mL concentration. CONCLUSION The characterization and biomedical application conclude that a combination of Ti/GO-NPs will be efficient in drug delivery. The study showed moderate antibacterial activity and significant antioxidant, anti-inflammatory and anticancer activities. Considering their physiochemical properties, absorption capacity and mechanism of drug delivery, Ti/GO-NPs can be incorporated into various applications in the medical field.
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Affiliation(s)
- S Vishaka
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - S Nehal Safiya
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - M Binigha
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Durai Singh Carmelin
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - P Geetha Sravanthy
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Ramanathan Snega
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Muthuvel Surya
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Muthupandian Saravanan
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
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16
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Rather MA, Mandal M. Attenuation of biofilm and quorum sensing regulated virulence factors of an opportunistic pathogen Pseudomonas aeruginosa by phytofabricated silver nanoparticles. Microb Pathog 2023; 185:106433. [PMID: 37913826 DOI: 10.1016/j.micpath.2023.106433] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/03/2023]
Abstract
Green-synthesized nanoparticles provide an effective strategy for inhibiting microbial pathogenesis by affecting biofilm formation, quorum sensing (QS), and other surface properties of microorganisms. QS is a density-dependent communication signaling cascade that regulates biofilm formation and other pathogenic factors of Pseudomonas aeruginosa. In this context, the effect of phytofabricated silver nanoparticles (CC-AgNPs) synthesized using Cuphea carthagenensis extract on biofilm, QS, and QS-dependent virulence factors of P. aeruginosa were evaluated in this study. CC-AgNPs demonstrated significant attenuation of biofilm, QS, and QS-dependent virulence factors at sub-MICs. A significant inhibition of 88.39 ± 4.32 %, 79.64 ± 3.31 %, 73.07 ± 3.0 %, and 61.67 ± 1.5 % of biofilm formation, quorum sensing, pyocyanin, and LasB elastase, respectively was reported in the study at 20 μg/mL. The study also demonstrated a significant reduction of LasA Staphylolytic activity and 91.37 ± 1.05 % exoprotease production in comparison to untreated control. The lower concentrations of CC-AgNPs also demonstrated significant attenuation of biofilm and other virulence factors suggesting the strong potency of NPs against P. aeruginosa. XTT analysis reported the effect of CC-AgNPs on sessile cells of P. aeruginosa without impacting growth of planktonic cells at sub-MICs. Cell-proliferation study in human cell lines (HEK 293 and Caco-2 cells) demonstrated the safe nature of CC-AgNPs at tested concentrations. This study is novel in a way that environmentally friendly CC-AgNPs were used to inhibit QS at sub-MICs without killing the tested strains, therefore, could be developed as an anti-virulent drug to overcome biofilm and antimicrobial resistance problems.
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Affiliation(s)
- Muzamil Ahmad Rather
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, India
| | - Manabendra Mandal
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, India.
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17
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Pandya SB, Socha BN, Dubey RP, Patel UH, Patel RH, Bhatt BS, Thakor P, Bhakhar S, Vekariya N, Valand J. Visible light-driven photocatalysts, quantum chemical calculations, ADMET-SAR parameters, and DNA binding studies of nickel complex of sulfadiazine. Sci Rep 2023; 13:15275. [PMID: 37714951 PMCID: PMC10504334 DOI: 10.1038/s41598-023-42668-z] [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: 05/26/2023] [Accepted: 09/13/2023] [Indexed: 09/17/2023] Open
Abstract
A 3D-supramolecular nickel integrated Ni-SDZ complex was synthesized using sodium salt of sulfadiazine as the ligand and nickel(II) acetate as the metal salt using a condensation process and slow evaporation approach to growing the single crystal. The metal complex was characterized for its composition, functional groups, surface morphology as well as complex 3D structure, by resorting to various analytical techniques. The interacting surface and stability as well as reactivity of the complex were carried out using the DFT platform. From ADMET parameters, human Intestinal Absorbance data revealed that the compound has the potential to be well absorbed, and also Ni-SDZ complex cannot cross the blood-brain barrier (BBB). Additionally, the complex's DNA binding affinity and in-vivo and in-vitro cytotoxic studies were explored utilizing UV-Vis absorbance titration, viscosity measurements, and S. pombe cells and brine shrimp lethality tests. In visible light radiation, the Ni-SDZ complex displayed exceptional photo-degradation characteristics of approximately 70.19% within 70 min against methylene blue (MB).
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Affiliation(s)
- Sachin B Pandya
- Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India.
- Vivekanand P.G. College, Govind Guru Tribal University, Banswara, Rajasthan, India.
| | - Bhavesh N Socha
- Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India.
- Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India.
| | - Rahul P Dubey
- Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Urmila H Patel
- Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - R H Patel
- Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Bhupesh S Bhatt
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Parth Thakor
- Bapubhai Desaibhai Patel Institute of Paramedical Sciences, Charotar University of Science and Technology, Changa, India
| | - Sanjay Bhakhar
- Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Nikhil Vekariya
- Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
| | - Jignesh Valand
- Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar, Anand, 388120, Gujarat, India
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Méndez-Lozano N, Apatiga-Castro M, Ruíz-Baltazar ADJ, de la Luz-Asunción M, Pérez-Ramírez EE. Characterization and Evaluation of Silver Concentrations in Hydroxyapatite Powders. J Funct Biomater 2023; 14:467. [PMID: 37754881 PMCID: PMC10532154 DOI: 10.3390/jfb14090467] [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: 08/17/2023] [Revised: 09/06/2023] [Accepted: 09/06/2023] [Indexed: 09/28/2023] Open
Abstract
The goal of this study is to evaluate the influence of the concentration of silver on the structural and antimicrobial in vitro properties of silver-doped hydroxyapatite powders obtained using the precipitation method. Different concentrations of silver were evaluated to assess the antimicrobial properties. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), and dispersive energy spectroscopy (EDS) were used to characterize the powders. XRD and FTIR showed that the hydroxyapatite structure is not affected by the incorporation of silver; on the other hand, EDS showed the presence of silver in the powders. Antibacterial studies showed the efficiency of hydroxyapatite powders in inhibiting bacterial growth as silver concentration increases. According to the results, silver-doped hydroxyapatite powders are suggested for use in the prevention and treatment of infections in bone and dental tissues.
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Affiliation(s)
- Néstor Méndez-Lozano
- Campus Querétaro, Universidad del Valle de México, Blvd. Juriquilla No. 1000 A Del., Santa Rosa Jáuregui 76230, Querétaro, Mexico; (M.d.l.L.-A.); (E.E.P.-R.)
| | - Miguel Apatiga-Castro
- CONAHCYT—Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Querétaro, Mexico; (M.A.-C.); (A.d.J.R.-B.)
| | - Alvaro de Jesús Ruíz-Baltazar
- CONAHCYT—Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Querétaro, Mexico; (M.A.-C.); (A.d.J.R.-B.)
| | - Miguel de la Luz-Asunción
- Campus Querétaro, Universidad del Valle de México, Blvd. Juriquilla No. 1000 A Del., Santa Rosa Jáuregui 76230, Querétaro, Mexico; (M.d.l.L.-A.); (E.E.P.-R.)
| | - Eduardo E. Pérez-Ramírez
- Campus Querétaro, Universidad del Valle de México, Blvd. Juriquilla No. 1000 A Del., Santa Rosa Jáuregui 76230, Querétaro, Mexico; (M.d.l.L.-A.); (E.E.P.-R.)
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Rajagopal S, Sugumaran S. The Antibacterial Effectiveness of Citrullus lanatus-Mediated Stannous Nanoparticles on Streptococcus mutans. Cureus 2023; 15:e45504. [PMID: 37868455 PMCID: PMC10584993 DOI: 10.7759/cureus.45504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/12/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction Dental caries is a prevalent oral health issue caused by the colonization of Streptococcus mutans in the oral cavity. Citrullus lanatus, commonly known as watermelon, is rich in bioactive compounds that possess antibacterial potential. In this study, we aimed to synthesize stannous chloride (SnCl2) nanoparticles (NPs) mediated by Citrullus lanatus extract and investigate their antibacterial effectiveness against Streptococcus mutans. Materials and method Stannous nanoparticles (SnNPs) synthesized by the green method were achieved by using the watermelon extract. Dilute stannous chloride solution was obtained by adding 0.45 g of stannous (Sn) chloride (Cl) powder to 60 mL of water, which was subjected to an orbital shaker with the watermelon extract. The nanoparticles obtained were subjected to characterization using antimicrobial testing, Fourier transform infrared (FTIR) spectroscopy, energy-dispersive X-ray (EDAX) analysis, and scanning electron microscopy (SEM). Agar well diffusion method was used against specific strains of S. aureus, S. mutans, and Escherichia coli. Results The novel nanoparticles demonstrated promising antibacterial activity against S. mutans providing 10 mm of inhibitory action. Conclusion Due to its abundance of naturally occurring bioactive chemicals and improved efficacy against S. mutans, watermelon extract can be utilized to create stannous nanoparticles as opposed to the use of toxic chemicals. They can also be employed as oral administration systems.
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Affiliation(s)
- Shruthi Rajagopal
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Surendar Sugumaran
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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20
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Verduzco-Chavira K, Vallejo-Cardona AA, González-Garibay AS, Torres-González OR, Sánchez-Hernández IM, Flores-Fernández JM, Padilla-Camberos E. Antibacterial and Antibiofilm Activity of Chemically and Biologically Synthesized Silver Nanoparticles. Antibiotics (Basel) 2023; 12:1084. [PMID: 37508180 PMCID: PMC10376474 DOI: 10.3390/antibiotics12071084] [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: 04/28/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 07/30/2023] Open
Abstract
Bacterial biofilms are a significant problem in the food industry, as they are difficult to eradicate and represent a threat to consumer health. Currently, nanoparticles as an alternative to traditional chemical disinfectants have garnered much attention due to their broad-spectrum antibacterial activity and low toxicity. In this study, silver nanoparticles (AgNPs) were synthesized by a biological method using a Jacaranda mimosifolia flower aqueous extract and by a chemical method, and the factors affecting both syntheses were optimized. The nanoparticles were characterized by Ultraviolet-visible (UV-Vis) spectrophotometry, Fourier-transform infrared spectroscopy (FTIR), Dynamic light scattering (DLS), X-ray diffraction (XRD), and Transmission electron microscopy (TEM) with a spherical and uniform shape. The antibacterial and antibiofilm formation activity was carried out on bacterial species of Pseudomonas aeruginosa and Staphylococcus aureus with the capacity to form biofilm. The minimum inhibitory concentration was 117.5 μg/mL for the chemical and 5.3 μg/mL for the biological nanoparticles. Both types of nanoparticles showed antibiofilm activity in the qualitative Congo red test and in the quantitative microplate test. Antibiofilm activity tests on fresh lettuce showed that biological nanoparticles decreased the population of S. aureus and P. aeruginosa by 0.63 and 2.38 logarithms, respectively, while chemical nanoparticles had little microbial reduction. In conclusion, the biologically synthesized nanoparticles showed greater antibiofilm activity. Therefore, these results suggest their potential application in the formulation of sanitizing products for the food and healthcare industries.
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Affiliation(s)
- Karen Verduzco-Chavira
- Department of Technological and Industrial Processes, ITESO, The Jesuit University of Guadalajara, Anillo Perif. Sur Manuel Gómez Morin 3838, Tlaquepaque 45604, Mexico
| | - Alba Adriana Vallejo-Cardona
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Angélica Sofía González-Garibay
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Omar Ricardo Torres-González
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Iván Moisés Sánchez-Hernández
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Jose Miguel Flores-Fernández
- Department of Biochemistry & Centre for Prions and Protein Folding Diseases, University of Alberta, 204 Brain and Aging Research Building, Edmonton, AB T6G 2M8, Canada
- Departamento de Investigación e Innovación, Universidad Tecnológica de Oriental, Oriental C.P., Puebla 75020, Mexico
| | - Eduardo Padilla-Camberos
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
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Keskin C, Ölçekçi A, Baran A, Baran MF, Eftekhari A, Omarova S, Khalilov R, Aliyev E, Sufianov A, Beilerli A, Gareev I. Green synthesis of silver nanoparticles mediated Diospyros kaki L. (Persimmon): determination of chemical composition and evaluation of their antimicrobials and anticancer activities. Front Chem 2023; 11:1187808. [PMID: 37324556 PMCID: PMC10265676 DOI: 10.3389/fchem.2023.1187808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023] Open
Abstract
The eco-friendly synthesis of metallic nanoparticles (MNPs) using biological materials is an encouraging and innovativeness approach to nanotechnology. Among other synthesizing methods, biological methods are chosen because of their high efficiency and purity in many aspects. In this work, using the aqueous extract obtained from the green leaves of the D. kaki L. (DK); silver nanoparticles were synthesized in a short time and simply with an eco-friendly approach. The properties of the synthesized silver nanoparticles (AgNPs) were characterized using various techniques and measurements. In the characterization data of AgNPs, Maximum absorbance at 453.34 nm wavelengths, the average size distribution of 27.12 nm, the surface charge of -22.4 mV, and spherical appearance were observed. LC-ESI-MS/MS analysis was used to assess the compound composition of D. kaki leaf extract. The chemical profiling of the crude extract of D. kaki leaves revealed the presence of a variety of phytochemicals, predominantly phenolics, resulting in the identification of five major high-feature compounds: two major phenolic acids (Chlorogenic acid and Cynarin), and tree flavonol glucosides (hyperoside, quercetin-3-glucoside, and quercetin-3- D-xyloside). The components with the highest concentrations were cynarin, chlorogenic acid, quercetin-3- D-xyloside, hyperoside, and quercetin-3-glucoside, respectively. Antimicrobial results were determined by a MIC assay. The biosynthesized AgNPs exhibited strong antibacterial activity against the human and food pathogen Gram (+ and -) bacteria and good antifungal activity against pathogenic yeast. It was determined that 0.03-0.050 μg/mL concentrations ranges of DK-AgNPs were growth suppressive concentrations on all pathogen microorganisms. The MTT technique was used to study the cytotoxic effects of produced AgNPs on cancer cell lines (Glioblastoma (U118), Human Colorectal Adenocarcinoma (Caco-2), Human Ovarian Sarcoma (Skov-3) cancer cell lines, and Human Dermal Fibroblast (HDF) healthy cell line). It has been observed that they have a suppressive effect on the proliferation of cancerous cell lines. After 48 h of treatment with Ag-NPs, the DK-AgNPs were found to be extremely cytotoxic to the CaCo-2 cell line, inhibiting cell viability by up to 59.49% at a concentration of 50 g mL-1. It was found that the viability was inversely related to the DK-AgNP concentration. The biosynthesized AgNPs had dose-dependent anticancer efficacy. Because of the high concentration of bioactive chemicals in Diospyros kaki, it may be employed as a biological resource in medicinal applications. DK-AgNPs were shown to be an effective antibacterial agent as well as a prospective anticancer agent. The results provide a potential approach for the biogenic production of DK-AgNPs utilizing D. kaki aqueous leaf extract.
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Affiliation(s)
- Cumali Keskin
- Department of Medical Services and Techniques, Vocational School of Health Services, Mardin Artuklu University, Mardin, Türkiye
| | - Ali Ölçekçi
- Department of Food Technology, Vocational School of Technical Sciences, Batman University, Batman, Türkiye
| | - Ayşe Baran
- Department of Medical Services and Techniques, Vocational School of Health Services, Mardin Artuklu University, Mardin, Türkiye
| | - Mehmet Fırat Baran
- Department of Food Technology, Vocational School of Technical Sciences, Batman University, Batman, Türkiye
| | - Aziz Eftekhari
- Department of Biochemistry, Faculty of Science, Ege University, Izmir, Türkiye
| | - Sabina Omarova
- Department of Biophysics and Biochemistry, Baku State University, Baku, Azerbaijan
| | - Rovshan Khalilov
- Department of Biophysics and Biochemistry, Baku State University, Baku, Azerbaijan
| | - Elvin Aliyev
- Department of Biology and Ecology, Faculty of Natural sciences, Lankaran State University, Lankaran, Azerbaijan
| | - Albert Sufianov
- Educational and Scientific Institute of Neurosurgery, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
- Department of Neurosurgery, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Aferin Beilerli
- Department of Obstetrics and Gynecology, Tyumen State Medical University, Tyumen, Russia
| | - Ilgiz Gareev
- Central Research Laboratory, Bashkir State Medical University, Ufa, Bashkortostan, Russia
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22
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Moosavy MH, de la Guardia M, Mokhtarzadeh A, Khatibi SA, Hosseinzadeh N, Hajipour N. Green synthesis, characterization, and biological evaluation of gold and silver nanoparticles using Mentha spicata essential oil. Sci Rep 2023; 13:7230. [PMID: 37142621 PMCID: PMC10160094 DOI: 10.1038/s41598-023-33632-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 04/16/2023] [Indexed: 05/06/2023] Open
Abstract
Green synthesis of bioactive nanoparticles (NPs) is getting more attractive in various fields of science including the food industry. This study investigates the green synthesizing and characterization of gold NPs (AuNPs) and silver NPs (AgNPs) produced using Mentha spicata L. (M. spicata) essential oil as well as their antibacterial, antioxidant, and in vitro cytotoxic effects. The essential oil was mixed with both Chloroauric acid (HAuCl4) and aqueous silver nitrate (AgNO3) solutions separately and incubated at room temperature for 24 h. The chemical composition of the essential oil was identified by gas chromatography coupled with a mass spectrometer detector (GC-MS). Au and Ag nanoparticles were characterized using UV-Vis spectroscopy, transmission electron microscopy, scanning electron microscopy, dynamic light scattering (DLS), X-ray diffraction (XRD) and Fourier transform infrared (FTIR). The cytotoxicity of both types of nanoparticles was evaluated using MTT assay on cancerous HEPG-2cell line by exposing them to various concentrations of both NPs for 24 h. The antimicrobial effect was evaluated by the well-diffusion technique. The antioxidant effect was determined by DPPH and ABTS tests. According to the results of GC-MS analysis, 18 components were identified, including carvone (78.76%) and limonene (11.50%). UV-visible spectroscopy showed a strong absorption peak of 563 nm and 485 nm, indicating the formation of Au NPs and Ag NPs, respectively. TEM and DLS demonstrated that AuNPs and AgNPs were predominantly spherical shaped with average sizes of 19.61 nm and 24 nm, respectively. FTIR analysis showed that biologically active compounds such as monoterpenes could assist in the formation and stabilization of both types of NPs. Additionally, XRD provided more accurate results, revealing a nano-metal structure. Silver nanoparticles exhibited better antimicrobial activity against the bacteria than AuNPs. Zones of inhibition ranging 9.0-16.0 mm were recorded for the AgNPs, while zones of 8.0-10.33 mm were observed AuNPs. In the ABTS assay, the AuNPs and AgNPs showed a dose-dependent activity and synthesized nanoparticles exhibited higher antioxidant activity than MSEO in both assays. Mentha spicata essential oil can be successfully used for the green production of Au NPs and Ag NPs. Both green synthesized NPs show antibacterial, antioxidant, and in vitro cytotoxic activity.
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Affiliation(s)
- Mir-Hassan Moosavy
- Department of Food Hygiene and Aquatic, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, 50 Dr Moliner Street, Research Building, Burjassot, 46100, Valencia, Spain
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Amin Khatibi
- Department of Food Hygiene and Aquatic, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Neda Hosseinzadeh
- Division of Pharmacology and Toxicology, Department of Basic Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Nasser Hajipour
- Department of Food Hygiene and Aquatic, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
- Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
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23
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Al-Otibi FO, Yassin MT, Al-Askar AA, Maniah K. Green Biofabrication of Silver Nanoparticles of Potential Synergistic Activity with Antibacterial and Antifungal Agents against Some Nosocomial Pathogens. Microorganisms 2023; 11:microorganisms11040945. [PMID: 37110368 PMCID: PMC10144991 DOI: 10.3390/microorganisms11040945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 04/07/2023] Open
Abstract
Nosocomial bacterial and fungal infections are one of the main causes of high morbidity and mortality worldwide, owing to the high prevalence of multidrug-resistant microbial strains. Hence, the study aims to synthesize, characterize, and investigate the antifungal and antibacterial activity of silver nanoparticles (AgNPs) fabricated using Camellia sinensis leaves against nosocomial pathogens. The biogenic AgNPs revealed a small particle diameter of 35.761 ± 3.18 nm based on transmission electron microscope (TEM) graphs and a negative surface charge of −14.1 mV, revealing the repulsive forces between nanoparticles, which in turn indicated their colloidal stability. The disk diffusion assay confirmed that Escherichia coli was the most susceptible bacterial strain to the biogenic AgNPs (200 g/disk), while the lowest sensitive strain was found to be the Acinetobacter baumannii strain with relative inhibition zones of 36.14 ± 0.67 and 21.04 ± 0.19 mm, respectively. On the other hand, the biogenic AgNPs (200 µg/disk) exposed antifungal efficacy against Candida albicans strain with a relative inhibition zone of 18.16 ± 0.14 mm in diameter. The biogenic AgNPs exposed synergistic activity with both tigecycline and clotrimazole against A. baumannii and C. albicans, respectively. In conclusion, the biogenic AgNPs demonstrated distinct physicochemical properties and potential synergistic bioactivity with tigecycline, linezolid, and clotrimazole against gram-negative, gram-positive, and fungal strains, respectively. This is paving the way for the development of effective antimicrobial combinations for the effective management of nosocomial pathogens in intensive care units (ICUs) and health care settings.
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Affiliation(s)
- Fatimah O. Al-Otibi
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Taha Yassin
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdulaziz A. Al-Askar
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid Maniah
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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24
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Manikandan P, Veeraraghavan VP, Sekaran S, Rengasamy G, Eswaramoorthy R. Molecular docking analysis of oxazole compounds with the heme-binding protein from Porphyromonas gingivalis. Bioinformation 2023; 19:105-110. [PMID: 37720292 PMCID: PMC10504525 DOI: 10.6026/97320630019105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 09/19/2023] Open
Abstract
Porphyromonas gingivalis, a peripathogen, has several methods to impede or modify the protective mechanisms of the teeth. Targeting the inhibition of the heme protein will prevent the organism from multiplying and inhibit the virulence mechanism. The literature derived oxazole compounds (1-5) were docked against the protein's active site, and the results show that the selected oxazole derivatives exhibit better interaction compared to clinically proven drugs.
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Affiliation(s)
- Pranaw Manikandan
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077, India
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077, India
| | - Surya Sekaran
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077, India
| | - Gayathri Rengasamy
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077, India
| | - Rajalakshmanan Eswaramoorthy
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077, India
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25
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Development of Decellularized Fish Skin Scaffold Decorated with Biosynthesized Silver Nanoparticles for Accelerated Burn Wound Healing. Int J Biomater 2023; 2023:8541621. [PMID: 36760230 PMCID: PMC9904935 DOI: 10.1155/2023/8541621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 11/30/2022] [Accepted: 12/09/2022] [Indexed: 02/04/2023] Open
Abstract
In this study, decellularized fish skin (DFS) scaffold decorated with silver nanoparticles was prepared for accelerating burn wound healing. The silver nanoparticles (AgNPs) synthesized by the green and facile method using Aloe vera leaf at different incubating times were characterized by using X-ray Diffraction (XRD), Fourier Transform Infrared (FT-IR) Spectroscopy, and Ultraviolet-Visible Spectroscopy (UV-Vis spectroscopy). The different characterizations confirmed that the sizes of AgNPs prepared by incubating for 6 hours and 12 hours were 29.1 nm and 35.2 nm, respectively. After that, the different concentrations of the smallest AgNPs were used to dope the DFS scaffold to determine the cell viability. Additionally, an agar well diffusion method was used to screen for antimicrobial activity. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were used to correlate the concentration of AgNPs with its bactericidal effect which was seen from 50 μg/ml. Then, the toxicity with human cells was investigated using a 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) assay with no significant cell viability from the concentration of 50 μg/ml to 200 μg/ml compared to the cocultured and commercial treatments.
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26
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Nautiyal M, Sekaran K, Sekaran S, Rengasamy G, Veeraraghavan VP, Eswaramoorthy R. Molecular docking analysis of Indole based diaza-sulphonamides with JAK-3 protein. Bioinformation 2023; 19:74-78. [PMID: 37720295 PMCID: PMC10504512 DOI: 10.6026/97320630019074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 09/19/2023] Open
Abstract
JAK-3 gene is a part of an important signalling pathway in oral cancer. Therefore, it is of interest to evaluate the inhibitory properties of new indole based diaza-sulphonamides compounds against JAK3 gene. Molecular docking analysis showed that among the selected compounds (1-9), the compounds 1-4 turned out to be the most potentially capable ones to be used as ant-cancer drugs. Also, they are proved to be non-toxic.
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Affiliation(s)
- Manya Nautiyal
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Kavitha Sekaran
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Surya Sekaran
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077
| | - Gayathri Rengasamy
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Rajalakshmanan Eswaramoorthy
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077
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27
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Mahanta U, Deshpande AS, Khandelwal M. TiO
2
Decorated SiO
2
Nanoparticles as Efficient Antibacterial Materials: Enhanced Activity under Low Power UV Light. ChemistrySelect 2023. [DOI: 10.1002/slct.202203724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Urbashi Mahanta
- Department of Materials Science and Metallurgical Engineering Indian Institute of Technology Hyderabad, Kandi, Sangareddy- 502285 Telangana India
| | - Atul S. Deshpande
- Department of Materials Science and Metallurgical Engineering Indian Institute of Technology Hyderabad, Kandi, Sangareddy- 502285 Telangana India
| | - Mudrika Khandelwal
- Department of Materials Science and Metallurgical Engineering Indian Institute of Technology Hyderabad, Kandi, Sangareddy- 502285 Telangana India
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28
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Green Synthesis and Antimicrobial Study on Functionalized Chestnut-Shell-Extract Ag Nanoparticles. Antibiotics (Basel) 2023; 12:antibiotics12020201. [PMID: 36830111 PMCID: PMC9952261 DOI: 10.3390/antibiotics12020201] [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: 12/06/2022] [Revised: 12/22/2022] [Accepted: 01/14/2023] [Indexed: 01/19/2023] Open
Abstract
The chestnut shell is usually discarded as agricultural waste and the random deposition of it can cause environmental problems. In this study, monodisperse crystalline Ag nanoparticles (AgNPs) were synthesized by a hydrothermal approach, in which the chestnut shell extract served as both reducing agent and stabilizer. The synthesized Ag nanoparticles were characterized by ultraviolet-visible (UV) spectrophotometry, transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) measurements. The TEM, XRD and XPS results revealed that the synthesized product was spherical Ag nanoparticles with a face-centered cubic crystal structure. The antimicrobial activity test indicated that the Ag nanoparticles modified by the chestnut shell extract had an obvious inhibitory effect on Escherichia coli, Staphylococcus aureus and Candida albicans. The measured MIC and MBC of functionalized chestnut-shell-extract AgNPs against E. coli, S. aureus and C. albicans is relatively low, which indicated that the present functionalized chestnut-shell-extract AgNPs are an efficient antimicrobial agent.
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29
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Andrew S, Sankaran K, Sekaran S, Rengasamy G, Veeraraghavan VP, Eswaramoorthy R. Molecular docking analysis of thiazo inhibitors with the virulent factor cystalysin from Treponema denticola. Bioinformation 2023; 19:94-98. [PMID: 37720279 PMCID: PMC10504506 DOI: 10.6026/97320630019094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/30/2023] [Accepted: 01/30/2023] [Indexed: 09/19/2023] Open
Abstract
Treponema Denticola has a virulent protein called cystalysin, which causes periodontitis. Therefore, it is of interest to design efficient drug that may have fewer side effects than the present clinical drugs, considering most of them are multidrug resistant. The molecular docking analysis show that the selected thiazo derivatives (1-6) show better binding energies and amino acid interactions compared to the clinically proven drugs proving to be potential inhibitors against the protein.
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Affiliation(s)
- Serafina Andrew
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Kavitha Sankaran
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Surya Sekaran
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077
| | - Gayathri Rengasamy
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Rajalakshmanan Eswaramoorthy
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077
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30
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Satish S, Rengasamy G, Sekaran S, Sankaran K, Veeraraghavan VP, Eswaramoorthy R. Molecular docking analysis of protein filamin-A with thioazo compounds. Bioinformation 2023; 19:99-104. [PMID: 37720273 PMCID: PMC10504497 DOI: 10.6026/97320630019099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 09/19/2023] Open
Abstract
It is of interest to document the molecular docking analysis of protein Filamin-A with thioazo compounds. The compounds 1, 3, 5, and 6 showed best molecular docking interaction as compared to the drug doxorubicin. Among the selected ligands (1-6), compound 3 shows better interaction score than doxorubicin and follows Lipinski's rule of five. Hence, it could be considered as a potential lead molecule for inhibiting protein filamin A in the treatment of oral cancer.
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Affiliation(s)
- Sudarshan Satish
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Gayathri Rengasamy
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Surya Sekaran
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077
| | - Kavitha Sankaran
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077
| | - Rajalakshmanan Eswaramoorthy
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai-600077
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31
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Karikalan K, Veeraraghavan VP, Sekaran S, Rengasamy G, Sankaran K, Eswaramoorthy R. Molecular docking analysis of the oral tumor target JAK STAT 3 with oxo-azo compounds. Bioinformation 2023; 19:63-68. [PMID: 37720284 PMCID: PMC10504500 DOI: 10.6026/97320630019063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 09/19/2023] Open
Abstract
It is of interest to identify the JAK STAT 3 signaling inhibitors to abrogate tumorigenesis in oral cancer. Hence, molecular docking was performed with known oxazole compounds (1-5) and the 3D crystal structure of JAK-1 protein from Homo sapiens (PDB ID: 3EYG). The results show that the oxo-azo derivatives showed better interactions within the binding site of proteins. We report that compounds 1, 4 and 5 optimal binding features with JAK STAT 3.
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Affiliation(s)
- Kaviya Karikalan
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai - 600077, India
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai - 600077, India
| | - Surya Sekaran
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai - 600077, India
| | - Gayathri Rengasamy
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai - 600077, India
| | - Kavitha Sankaran
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai - 600077, India
| | - Rajalakshmanan Eswaramoorthy
- Department of Biomaterials (Green lab), Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai - 600077, India
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32
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Hariri A, Shayesteh S, Asgharian P, Yousefi V, Chamanara M, Sadrzadeh-Afshar MS. Evaluating the effects of zeolitic imidazolate framework and Eremostachys binalodensis extract on Candida albicans and Streptococcus mutans biofilms. Eur J Oral Sci 2022; 130:e12904. [PMID: 36372561 DOI: 10.1111/eos.12904] [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: 04/14/2022] [Accepted: 10/21/2022] [Indexed: 11/15/2022]
Abstract
Biofilms represent longstanding challenges to oral health care. Candida albicans and Streptococcus mutans are the common pathogens forming biofilms. The growing resistance to and the adverse effects of antibiotics limit their usage and raise the need for novel approaches. Herbal extracts have emerged as efficient choices with lower costs and fewer adverse effects. Metal frameworks have captivated interest due to their high surface area, special biocompatibility, and non-toxicity. The effects of zeolitic imidazolate frameworks/layered double hydroxide (ZIF/LDH) on fungal infections and the potential effects of Eremostachys binalodensis on bacteria encouraged the researchers to evaluate the effect of ZIF/LDH, E. binalodensis, and their combination on C. albicans and S. mutans biofilms. ZIF/LDH nanocomposite was synthesized and characterized using scanning electron microscopy, Fourier transform infrared spectra, and X-ray diffraction to assess morphology and chemical structure. Methanol extracts of the areal parts of E. binalodensis were obtained by Soxhlet extraction. The microdilution tests and biofilm crystal violet staining were applied. Concentrations of 2.048 and 4.096 mg/ml E. binalodensis prevented C. albicans and S. mutans biofilm formation. The combination of ZIF/LDH + E. binalodensis prevented C. albicans and S. mutans biofilm formation. This research suggests the use of E. binalodensis-loaded ZIF/LDH nanocomposites for removing biofilms.
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Affiliation(s)
- Armin Hariri
- Oral and Maxillofacial Medicine Department, Faculty of Dentistry, Aja University of Medical Sciences, Tehran, Iran
| | - Sevda Shayesteh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alborz University of Medical Sciences, Karaj, Iran
| | - Parina Asgharian
- Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Yousefi
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohsen Chamanara
- Department of Pharmacology, Faculty of Medicine, Aja University of Medical Sciences, Tehran, Iran.,Toxicology Research Center, Aja University of Medical Sciences, Tehran, Iran
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Lin G, Zhao C, Liao W, Yang J, Zheng Y. Eco-Friendly Green Synthesis of Rubropunctatin Functionalized Silver Nanoparticles and Evaluation of Antibacterial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12224052. [PMID: 36432337 PMCID: PMC9699398 DOI: 10.3390/nano12224052] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 05/27/2023]
Abstract
In order to solve the problems of rubropunctatin insoluble in water and its low bioavailability, and explore the synthesis method of green silver nanoparticles, rubropunctatin was used as reducing agent and blocking agent, rubropunctatin-functionalized silver nanoparticles (R-AgNPs) were successfully synthesized. The distinctive absorption peak at 410 nm confirmed the formation of R-AgNPs. Zeta potential measurement showed excellent stability of R-AgNPs with negative values of -29.81 ± 0.37 mV. The results of TEM and XRD showed that the prepared R-AgNPs were round, well dispersed and crystallized with average particle size of 13.54 ± 0.42 nm. FT-IR and XPS studies show that functional groups are involved in R-AgNPs synthesis. The antibacterial activity of R-AgNPs was compared with commercial silver nanoparticles (AgNPs) by microdilution method. The results showed that R-AgNPs (MIC 7.81 μg/mL) has stronger antibacterial activity than commercial AgNPs. The bacteria morphology was observed by the live and dead (SYTO 9/PI) staining assay and SEM showed that the antibacterial effect of R-AgNPs was caused by the destruction of the bacterial cell membrane. Cytotoxicity of rubropunctatin-functionalized silver nanoparticles and commercial silver nanoparticles on mouse fibroblast 3T3 cells was assessed by CCK-8 assay. The results showed that the toxicity of rubropunctatin-functionalized silver nanoparticles to 3T3 cells was lower than that of commercial silver nanoparticles. In summary, synthesis of silver nanoparticles using rubropunctatin is a green synthesis method, and R-AgNPs is a potential antibacterial agent.
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Affiliation(s)
- Guibin Lin
- College of Chemistry, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
| | - Chenhui Zhao
- College of Chemistry, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
| | - Wenqiang Liao
- College of Chemistry, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
| | - Jianmin Yang
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
- Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
| | - Yunquan Zheng
- College of Chemistry, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
- Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
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Tawre MS, Shiledar A, Satpute SK, Ahire K, Ghosh S, Pardesi K. Synergistic and antibiofilm potential of Curcuma aromatica derived silver nanoparticles in combination with antibiotics against multidrug-resistant pathogens. Front Chem 2022; 10:1029056. [PMID: 36438875 PMCID: PMC9682076 DOI: 10.3389/fchem.2022.1029056] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 10/14/2022] [Indexed: 06/12/2024] Open
Abstract
Hospital acquired infections caused due to ESKAPE pathogens pose a challenge for treatment due to their growing antimicrobial resistance. Curcuma aromatica (CA) is traditionally known for its antibacterial, wound healing and anti-inflammatory properties. The present study highlights the biogenic synthesis of silver nanoparticles (CAAgNPs) capped and stabilized by the compounds from CA rhizome extract, also further demonstrating their antibacterial, antibiofilm and synergistic effects against multidrug-resistant (MDR) pathogens. CAAgNPs were synthesized using aqueous rhizome extract of CA (5 mg/ml) and AgNO3 (0.8 mM) incubated at 60°C up to 144 h. UV-vis spectroscopy, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) revealed CAAgNPs with characteristic peak at 430 nm, 13 ± 5 nm size of spherical shape, showing presence of silver and crystalline nature, respectively. Dynamic light scattering (DLS) and zeta potential confirmed their monodispersed nature with average diameter of 77.88 ± 48.60 nm and stability. Fourier transform infrared spectroscopic (FTIR) analysis demonstrated the presence of phenolic -OH and carbonyl groups possibly involved in the reduction and stabilization of CAAgNPs. The minimum inhibitory concentrations (MICs), minimum bactericidal concentrations (MBCs) and minimum biofilm inhibitory concentrations (MBICs) of CAAgNPs against Pseudomonas aeruginosa, NCIM 5029 and PAW1, and, Staphylococcus aureus, NCIM 5021 and S8 were in range from 8 to 128 μg/ml. Almost 50% disruption of pre-formed biofilms at concentrations 8-1,024 μg/ml was observed. Fluorescence microscopy and FESEM analysis confirmed cell death and disruption of pre-formed biofilms of P. aeruginosa PAW1 and S. aureus S8. Checkerboard assay demonstrated the synergistic effect of CAAgNPs (0.125-4 μg/ml) in combination with various antibiotics (0.063-1,024 μg/ml) against planktonic and biofilm forms of P. aeruginosa PAW1. The study confirms the antibacterial and antibiofilm activity of CAAgNPs alone and in combination with antibiotics against MDR pathogens, thus, reducing the dose as well as toxicity of both. CAAgNPs have the potential to be used in wound dressings and ointments, and to improve the performances of medical devices and surgical implants. In vivo toxicity of CAAgNPs however needs to be tested further using mice models.
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Affiliation(s)
- Madhumita S. Tawre
- Department of Microbiology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Aishwarya Shiledar
- Department of Microbiology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Surekha K. Satpute
- Department of Microbiology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Kedar Ahire
- Department of Zoology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Sougata Ghosh
- Department of Microbiology, School of Science, RK University, Rajkot, Gujarat, India
| | - Karishma Pardesi
- Department of Microbiology, Savitribai Phule Pune University, Pune, Maharashtra, India
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Ravi B, Mani G, Pushparaj H, Jang HT, Manickam V. Sida cordata assisted bio-inspired silver nanoparticles and its antimicrobial, free-radical scavenging, tyrosinase inhibition, and photocatalytic activity (4 in 1 system). PARTICULATE SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1080/02726351.2022.2129116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Brindhamani Ravi
- Department of Pharmaceutical Chemistry, J.K.K. Nataraja College of Pharmacy, Erode, India
| | - Ganesh Mani
- Department of Pharmaceutical Chemistry, Srinivasan College of Pharmacy, Trichy, India
- Department of Chemical Engineering, Hanseo University, Haemi-myun, South Korea
| | | | - Hyun Tae Jang
- Department of Chemical Engineering, Hanseo University, Haemi-myun, South Korea
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Vorobyev SA, Novikova GV, Demina AV, Shidlovskiy IP, Volochaev MN. Synthesis and synergistic effect of antibacterial composites based on concentrated hydrosols of silver nanoparticles combined with cephalosporins antibiotics. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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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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Antimicrobial Effects of Nanostructured Rare-Earth-Based Orthovanadates. Curr Microbiol 2022; 79:254. [PMID: 35834046 DOI: 10.1007/s00284-022-02947-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 06/22/2022] [Indexed: 11/03/2022]
Abstract
The search for novel antimicrobial agents is of huge importance. Nanomaterials can come to the rescue in this case. The aim of this study was to assess the cytotoxicity and antimicrobial effects of rare-earth-based orthovanadate nanoparticles. The cytotoxicity against host cells and antimicrobial activity of LaVO4:Eu3+ and GdVO4:Eu3+ nanoparticles were analyzed. Effects of nanomaterials on fibroblasts were assessed by MTT, neutral red uptake and scratch assays. The antimicrobial effects were evaluated by the micro-dilution method estimating the minimum inhibitory concentration (MIC) of nanoparticles against various strains of microorganisms, DNA cleavage and biofilm inhibition. GdVO4:Eu3+ nanoparticles were found to be less toxic against eukaryotic cells compared with LaVO4:Eu3+. Both nanoparticles exhibited antimicrobial activity and the highest MIC values were 64 mg/L for E. hirae, E. faecalis and S. aureus shown by GdVO4:Eu3+ nanoparticles. Nanoparticles demonstrated good DNA cleavage activity and induction of double-strand breaks in supercoiled plasmid DNA even at the lowest concentrations used. Both nanoparticles showed the biofilm inhibition activity against S. aureus at 500 mg/L and reduced the microbial cell viability. Taken the results of host toxicity and antimicrobial activity studies, it can be assumed that GdVO4:Eu3+ nanoparticles are more promising antibacterial agents compared with LaVO4:Eu3+ nanoparticles.
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Effect of Biosynthesized Silver Nanoparticles on Bacterial Biofilm Changes in S. aureus and E. coli. NANOMATERIALS 2022; 12:nano12132183. [PMID: 35808019 PMCID: PMC9268453 DOI: 10.3390/nano12132183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/02/2022] [Accepted: 06/16/2022] [Indexed: 11/16/2022]
Abstract
One approach for solving the problem of antibiotic resistance and bacterial persistence in biofilms is treatment with metals, including silver in the form of silver nanoparticles (AgNPs). Green synthesis is an environmentally friendly method to synthesize nanoparticles with a broad spectrum of unique properties that depend on the plant extracts used. AgNPs with antibacterial and antibiofilm effects were obtained using green synthesis from plant extracts of Lagerstroemia indica (AgNPs_LI), Alstonia scholaris (AgNPs_AS), and Aglaonema multifolium (AgNPs_AM). Nanoparticles were characterized by transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDX) analysis. The ability to quench free radicals and total phenolic content in solution were also evaluated. The antibacterial activity of AgNPs was studied by growth curves as well as using a diffusion test on agar medium plates to determine minimal inhibitory concentrations (MICs). The effect of AgNPs on bacterial biofilms was evaluated by crystal violet (CV) staining. Average minimum inhibitory concentrations of AgNPs_LI, AgNPs_AS, AgNPs_AM were 15 ± 5, 20 + 5, 20 + 5 μg/mL and 20 ± 5, 15 + 5, 15 + 5 μg/mL against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria, respectively. The E. coli strain formed biofilms in the presence of AgNPs, a less dense biofilm than the S. aureus strain. The highest inhibitory and destructive effect on biofilms was exhibited by AgNPs prepared using an extract from L. indica.
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Jardón-Romero EA, Lara-Carrillo E, González-Pedroza MG, Sánchez-Mendieta V, Salmerón-Valdés EN, Toral-Rizo VH, Olea-Mejía OF, López-González S, Morales-Luckie RA. Antimicrobial Activity of Biogenic Silver Nanoparticles from Syzygium aromaticum against the Five Most Common Microorganisms in the Oral Cavity. Antibiotics (Basel) 2022; 11:antibiotics11070834. [PMID: 35884088 PMCID: PMC9311661 DOI: 10.3390/antibiotics11070834] [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: 05/03/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 12/16/2022] Open
Abstract
Syzygium aromaticum (clove) has been used as a dental analgesic, an anesthetic, and a bioreducing and capping agent in the formation of metallic nanoparticles. The main objective of this study was to evaluate the antimicrobial effect in oral microorganisms of biogenic silver nanoparticles (AgNPs) formed with aqueous extract of clove through an ecofriendly method “green synthesis”. The obtained AgNPs were characterized by UV-Vis (ultraviolet-visible spectroscopy), SEM-EDS (scanning electron microscopy–energy dispersive X-ray spectroscopy), TEM (transmission electron microscopy), and ζ potential, while its antimicrobial effect was corroborated against oral Gram-positive and Gram-negative microorganisms, as well as yeast that is commonly present in the oral cavity. The AgNPs showed absorption at 400–500 nm in the UV-Vis spectrum, had an average size of 4–16 nm as observed by the high-resolution transmission electron microscopy (HR-TEM), and were of a crystalline nature and quasi-spherical form. The antimicrobial susceptibility test showed inhibition zones of 2–4 mm in diameter. Our results suggest that AgNPs synthesized with clove can be used as effective growth inhibitors in several oral microorganisms.
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Affiliation(s)
- Erika Alejandra Jardón-Romero
- Center for Advanced Studies and Research on Dentistry, Autonomous University of the State of Mexico (UAEMex), Toluca 50200, Mexico; (E.A.J.-R.); (E.L.-C.); (S.L.-G.)
| | - Edith Lara-Carrillo
- Center for Advanced Studies and Research on Dentistry, Autonomous University of the State of Mexico (UAEMex), Toluca 50200, Mexico; (E.A.J.-R.); (E.L.-C.); (S.L.-G.)
| | - María G. González-Pedroza
- Faculty of Sciences, Department of Biotechnology, Autonomous University of the State of Mexico (UAEMex), Toluca 50200, Mexico;
| | - Víctor Sánchez-Mendieta
- Joint Center for Research in Sustainable Chemistry (CCIQS), Department of Material Science, Autonomous University of the State of Mexico (UAEMex), Toluca 50200, Mexico; (V.S.-M.); (O.F.O.-M.)
| | - Elías Nahum Salmerón-Valdés
- School of Dentistry, Autonomous University of the State of Mexico (UAEMex), Toluca 50130, Mexico; (E.N.S.-V.); (V.H.T.-R.)
| | - Víctor Hugo Toral-Rizo
- School of Dentistry, Autonomous University of the State of Mexico (UAEMex), Toluca 50130, Mexico; (E.N.S.-V.); (V.H.T.-R.)
| | - Oscar F. Olea-Mejía
- Joint Center for Research in Sustainable Chemistry (CCIQS), Department of Material Science, Autonomous University of the State of Mexico (UAEMex), Toluca 50200, Mexico; (V.S.-M.); (O.F.O.-M.)
| | - Saraí López-González
- Center for Advanced Studies and Research on Dentistry, Autonomous University of the State of Mexico (UAEMex), Toluca 50200, Mexico; (E.A.J.-R.); (E.L.-C.); (S.L.-G.)
| | - Raúl A. Morales-Luckie
- School of Dentistry, Autonomous University of the State of Mexico (UAEMex), Toluca 50130, Mexico; (E.N.S.-V.); (V.H.T.-R.)
- Correspondence: or
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Yilmaz MT, İspirli H, Taylan O, Balubaid M, Dertli E. Facile biomimetic synthesis of AgNPs using aqueous extract of Helichrysum arenarium: characterization and antimicrobial activity. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2081204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mustafa Tahsin Yilmaz
- Faculty of Engineering, Department of Industrial Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Humeyra İspirli
- Central Research Laboratory, Bayburt University, Bayburt, Turkey
| | - Osman Taylan
- Faculty of Engineering, Department of Industrial Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammad Balubaid
- Faculty of Engineering, Department of Industrial Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Enes Dertli
- Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Yıldız Technical University, İstanbul, Turkey
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42
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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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43
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Novel synthesis of gold nanoparticles using Parkia speciosa Hassk seed extract for enhanced foam stability in hand soap. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02197-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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44
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Enhancement of anti-bacterial potential of green synthesized selenium nanoparticles by starch encapsulation. Microb Pathog 2022; 167:105544. [DOI: 10.1016/j.micpath.2022.105544] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 03/18/2022] [Accepted: 04/13/2022] [Indexed: 01/24/2023]
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45
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Swidan NS, Hashem YA, Elkhatib WF, Yassien MA. Antibiofilm activity of green synthesized silver nanoparticles against biofilm associated enterococcal urinary pathogens. Sci Rep 2022; 12:3869. [PMID: 35264654 PMCID: PMC8907169 DOI: 10.1038/s41598-022-07831-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 02/21/2022] [Indexed: 11/09/2022] Open
Abstract
Biofilm-formed enterococcal urinary tract clinical isolates (n = 92) were used for studying the antibiofilm activity of cinnamon, ginger, and chemical AgNPs. The average particle sizes of cinnamon, ginger, and chemical AgNPs were 8.7, 41.98, and 55.7 nm, respectively. The results of Fourier transform infrared analysis revealed that phytocompounds, such as cinnamaldehyde and gingerol, were the main compounds incorporated in the synthesis of cinnamon and ginger AgNPs, respectively. The purity and crystalline nature of the AgNPs have been confirmed by energy dispersive X-ray and X-ray Diffraction analysis. The results of antimicrobial activity showed that MIC of ginger, cinnamon, and chemical AgNPs were 37.64, 725.7, and 61.08 μg/ml, respectively. On studying the antibiofilm activity of AgNPs at sub-MIC values (1/2, 1/4, and 1/8 MIC), the results revealed that it was concentration dependent. Therefore, further studies were carried out to evaluate the antibiofilm activity of AgNPs at a concentration of 18 μg/ml. The results showed that ginger and chemical AgNPs reduced the formed biofilm to 39.14% and 65.32% and the number of adherent cells on the urinary catheter surface to 42.73% and 69.84%, respectively, as compared to that of the control, while cinnamon AgNPs showed no significant activity. Accordingly, ginger AgNPs had the most potent antibacterial and antiadherent activity against biofilm-associated enterococcal isolates.
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Affiliation(s)
- Nada S Swidan
- Department of Microbiology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Yomna A Hashem
- Department of Microbiology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Walid F Elkhatib
- Microbiology and Immunology Department, Faculty of Pharmacy, Ain Shams University, African Union Organization St., Abbassia, Cairo, 11566, Egypt
- Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University, New Galala city, Suez, Egypt
| | - Mahmoud A Yassien
- Microbiology and Immunology Department, Faculty of Pharmacy, Ain Shams University, African Union Organization St., Abbassia, Cairo, 11566, Egypt.
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Talank N, Morad H, Barabadi H, Mojab F, Amidi S, Kobarfard F, Mahjoub MA, Jounaki K, Mohammadi N, Salehi G, Ashrafizadeh M, Mostafavi E. Bioengineering of green-synthesized silver nanoparticles: In vitro physicochemical, antibacterial, biofilm inhibitory, anticoagulant, and antioxidant performance. Talanta 2022; 243:123374. [DOI: 10.1016/j.talanta.2022.123374] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 02/01/2023]
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Green synthesis of silver nanoparticles using sodium alginate and tannic acid: characterization and anti-S. aureus activity. Int J Biol Macromol 2022; 195:515-522. [PMID: 34920064 DOI: 10.1016/j.ijbiomac.2021.12.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 11/11/2021] [Accepted: 12/05/2021] [Indexed: 01/07/2023]
Abstract
Multi-drug resistance and biofilm formation are a growing problem in the treatment of Staphylococcus aureus contamination. Advances in nanotechnology allow the synthesis of metal nanoparticles that can be assembled into complex architectures for controlling bacterial growth. This study aims to investigate the ultrasonic-assisted green synthesis of silver nanoparticles (AgNPs) by tannic acid (TA) and sodium alginate (Na-Alg) as the reducing and stabilizing agents, respectively, and evaluation of their antibacterial and antibiofilm activities. The UV-Vis spectroscopy and transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), zetasizer, FT-IR spectroscopy, and X-ray diffraction (XRD) studies showed that the optimum produces were spherical, stable, and monodispersed AgNPs with an average size of particle sizes of 18.52 ± 0.07 nm. The antibacterial and antibiofilm activities of the AgNPs loaded TA/Na-Alg constructs against S. aureus ATCC 6538 were investigated. The minimum inhibitory concentration (MIC) of the AgNPs was 31.25 μg/mL. After exposure to the AgNPs, planktonic S. aureus showed irreversible cell membrane damage, decreased cell viability, and changes in cellular morphology. In addition, the AgNps significantly inhibited S. aureus biofilm formation at 1/32 MIC. The biofilm elimination rate was 58.87% after exposure to MIC AgNPs. The results suggested that the development of AgNPs loaded TA/Na-Alg constructs with biomedical potentialities obtained through a simple, green, and cost-effective approach, may be suitable for the formulation of a new strategy for combating S. aureus.
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Das P, Ghosh S, Nayak B. Phyto-fabricated Nanoparticles and Their Anti-biofilm Activity: Progress and Current Status. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.739286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Biofilm is the self-synthesized, mucus-like extracellular polymeric matrix that acts as a key virulence factor in various pathogenic microorganisms, thereby posing a serious threat to human health. It has been estimated that around 80% of hospital-acquired infections are associated with biofilms which are found to be present on both biotic and abiotic surfaces. Antibiotics, the current mainstream treatment strategy for biofilms are often found to be futile in the eradication of these complex structures, and to date, there is no effective therapeutic strategy established against biofilm infections. In this regard, nanotechnology can provide a potential platform for the alleviation of this problem owing to its unique size-dependent properties. Accordingly, various novel strategies are being developed for the synthesis of different types of nanoparticles. Bio-nanotechnology is a division of nanotechnology which is gaining significant attention due to its ability to synthesize nanoparticles of various compositions and sizes using biotic sources. It utilizes the rich biodiversity of various biological components which are biocompatible for the synthesis of nanoparticles. Additionally, the biogenic nanoparticles are eco-friendly, cost-effective, and relatively less toxic when compared to chemically or physically synthesized alternatives. Biogenic synthesis of nanoparticles is a bottom-top methodology in which the nanoparticles are formed due to the presence of biological components (plant extract and microbial enzymes) which act as stabilizing and reducing agents. These biosynthesized nanoparticles exhibit anti-biofilm activity via various mechanisms such as ROS production, inhibiting quorum sensing, inhibiting EPS production, etc. This review will provide an insight into the application of various biogenic sources for nanoparticle synthesis. Furthermore, we have highlighted the potential of phytosynthesized nanoparticles as a promising antibiofilm agent as well as elucidated their antibacterial and antibiofilm mechanism.
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Biogenic production of silver nanoparticles from milk of Capra aegagrus hircus and mechanism of antibacterial activity on different bacteria. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-02095-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Sharmin N, Pang C, Sone I, Walsh JL, Fernández CG, Sivertsvik M, Fernández EN. Synthesis of Sodium Alginate-Silver Nanocomposites Using Plasma Activated Water and Cold Atmospheric Plasma Treatment. NANOMATERIALS 2021; 11:nano11092306. [PMID: 34578622 PMCID: PMC8472623 DOI: 10.3390/nano11092306] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 11/16/2022]
Abstract
In this study, sodium alginate (SA)-based, eco-friendly nanocomposites films were synthesized for potential food packaging applications using silver nitrate (AgNO3) as the metal precursor, reactive nitrogen and oxygen species (RNOS) created within plasma activated water (PAW), or through cold plasma treatment (CP) as reducing agent and SA as stabilizing agent. The formation of silver nanoparticles (AgNPs) was confirmed via the absorption peaks observed between 440 and 450 nm in UV-vis spectroscopy. The tensile strength (TS) and tensile modulus (TM) of the nanocomposite films were significantly higher than those of the SA films. An increase in the TS was also observed as the AgNP concentration was increased from 1 to 5 mM. The storage modulus (G’) of the nanocomposite solution was higher than that of the SA solution. The synthesis of AgNPs resulted both in a higher solution viscosity and a more marked shear-thinning effect. The synthesized AgNPs showed antimicrobial activity against both Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The AgNPs were spherical in shape with an average size of 22 nm.
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Affiliation(s)
- Nusrat Sharmin
- Department of Food Safety and Quality, Nofima AS, Osloveien 1, 1430 Ås, Norway
- Correspondence:
| | - Chengheng Pang
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China;
| | - Izumi Sone
- Department of Processing Technology, Nofima AS, Richard Johnsens Gate 4, 4021 Stavanger, Norway; (I.S.); (M.S.); (E.N.F.)
| | - James Leon Walsh
- Centre for Plasma Microbiology, Department of Electrical Engineering & Electronics, University of Liverpool, Liverpool L69 3BX, UK;
| | | | - Morten Sivertsvik
- Department of Processing Technology, Nofima AS, Richard Johnsens Gate 4, 4021 Stavanger, Norway; (I.S.); (M.S.); (E.N.F.)
| | - Estefanía Noriega Fernández
- Department of Processing Technology, Nofima AS, Richard Johnsens Gate 4, 4021 Stavanger, Norway; (I.S.); (M.S.); (E.N.F.)
- European Food Safety Authority, Via Carlo Magno 1A, 43126 Parma, Italy
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