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Hu C, He G, Yang Y, Wang N, Zhang Y, Su Y, Zhao F, Wu J, Wang L, Lin Y, Shao L. Nanomaterials Regulate Bacterial Quorum Sensing: Applications, Mechanisms, and Optimization Strategies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306070. [PMID: 38350718 PMCID: PMC11022734 DOI: 10.1002/advs.202306070] [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: 08/28/2023] [Revised: 01/19/2024] [Indexed: 02/15/2024]
Abstract
Anti-virulence therapy that interferes with bacterial communication, known as "quorum sensing (QS)", is a promising strategy for circumventing bacterial resistance. Using nanomaterials to regulate bacterial QS in anti-virulence therapy has attracted much attention, which is mainly attributed to unique physicochemical properties and excellent designability of nanomaterials. However, bacterial QS is a dynamic and multistep process, and there are significant differences in the specific regulatory mechanisms and related influencing factors of nanomaterials in different steps of the QS process. An in-depth understanding of the specific regulatory mechanisms and related influencing factors of nanomaterials in each step can significantly optimize QS regulatory activity and enhance the development of novel nanomaterials with better comprehensive performance. Therefore, this review focuses on the mechanisms by which nanomaterials regulate bacterial QS in the signal supply (including signal synthesis, secretion, and accumulation) and signal transduction cascade (including signal perception and response) processes. Moreover, based on the two key influencing factors (i.e., the nanomaterial itself and the environment), optimization strategies to enhance the QS regulatory activity are comprehensively summarized. Collectively, applying nanomaterials to regulate bacterial QS is a promising strategy for anti-virulence therapy. This review provides reference and inspiration for further research on the anti-virulence application of nanomaterials.
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Affiliation(s)
- Chen Hu
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Guixin He
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yujun Yang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Ning Wang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yanli Zhang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yuan Su
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
- Stomatology CenterShunde HospitalSouthern Medical University (The First People's Hospital of Shunde)Foshan528399China
| | - Fujian Zhao
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Junrong Wu
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Linlin Wang
- Hainan General Hospital·Hainan Affiliated Hospital of Hainan medical UniversityHaikou570311China
| | - Yuqing Lin
- Shenzhen Luohu People's HospitalShenzhen518000China
| | - Longquan Shao
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
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Leighton RE, Xiong L, Anderson GK, Astarita GM, Cai G, Norman RS, Decho AW. Vibrio parahaemolyticus and Vibrio vulnificus in vitro biofilm dispersal from microplastics influenced by simulated human environment. Front Microbiol 2023; 14:1236471. [PMID: 37854331 PMCID: PMC10579612 DOI: 10.3389/fmicb.2023.1236471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/12/2023] [Indexed: 10/20/2023] Open
Abstract
Growing concerns exist regarding human ingestion of contaminated seafood that contains Vibrio biofilms on microplastics (MPs). One of the mechanisms enhancing biofilm related infections in humans is due to biofilm dispersion, a process that triggers release of bacteria from biofilms into the surrounding environment, such as the gastrointestinal tract of human hosts. Dispersal of cells from biofilms can occur in response to environmental conditions such as sudden changes in temperature, pH and nutrient conditions, as the bacteria leave the biofilm to find a more stable environment to colonize. This study evaluated how brief exposures to nutrient starvation, elevated temperature, different pH levels and simulated human media affect Vibrio parahaemolyticus and Vibrio vulnificus biofilm dispersal and processes on and from low-density polyethylene (LDPE), polypropylene (PP), and polystyrene (PS) MPs. Both species were able to adequately disperse from all types of plastics under most exposure conditions. V. parahaemolyticus was able to tolerate and survive the low pH that resembles the gastric environment compared to V. vulnificus. pH had a significantly (p ≤ 0.05) positive effect on overall V. parahaemolyticus biofilm biomass in microplates and cell colonization from PP and PS. pH also had a positive effect on V. vulnificus cell colonization from LDPE and PP. However, most biofilm biomass, biofilm cell and dispersal cell densities of both species greatly varied after exposure to elevated temperature, pH, and nutrient starvation. It was also found that certain exposures to simulated human media affected both V. parahaemolyticus and V. vulnificus biofilm biomass and biofilm cell densities on LDPE, PP and PS compared to exposure to traditional media of similar pH. Cyclic-di-GMP was higher in biofilm cells compared to dispersal cells, but exposure to more stressful conditions significantly increased signal concentrations in both biofilm and dispersal states. Taken together, this study suggests that human pathogenic strains of V. parahaemolyticus and V. vulnificus can rapidly disperse with high cell densities from different plastic types in vitro. However, the biofilm dispersal process is highly variable, species specific and dependent on plastic type, especially under different human body related environmental exposures.
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Affiliation(s)
- Ryan E. Leighton
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
- Department of Environmental Health Sciences, NIEHS Center for Oceans and Human Health and Climate Change Interactions, University of South Carolina, Columbia, SC, United States
| | - Liyan Xiong
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Gracie K. Anderson
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Grace M. Astarita
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Guoshuai Cai
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Robert Sean Norman
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
- Department of Environmental Health Sciences, NIEHS Center for Oceans and Human Health and Climate Change Interactions, University of South Carolina, Columbia, SC, United States
| | - Alan W. Decho
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
- Department of Environmental Health Sciences, NIEHS Center for Oceans and Human Health and Climate Change Interactions, University of South Carolina, Columbia, SC, United States
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Garg SS, Dubey R, Sharma S, Vyas A, Gupta J. Biological macromolecules-based nanoformulation in improving wound healing and bacterial biofilm-associated infection: A review. Int J Biol Macromol 2023; 247:125636. [PMID: 37392924 DOI: 10.1016/j.ijbiomac.2023.125636] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/19/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023]
Abstract
A chronic wound is a serious complication associated with diabetes mellitus and is difficult to heal due to high glucose levels, oxidative stress, and biofilm-associated microbial infection. The structural complexity of microbial biofilm makes it impossible for antibiotics to penetrate the matrix, hence conventional antibiotic therapies became ineffective in clinical settings. This demonstrates an urgent need to find safer alternatives to reduce the prevalence of chronic wound infection associated with microbial biofilm. A novel approach to address these concerns is to inhibit biofilm formation using biological-macromolecule based nano-delivery system. Higher drug loading efficiency, sustained drug release, enhanced drug stability, and improved bioavailability are advantages of employing nano-drug delivery systems to prevent microbial colonization and biofilm formation in chronic wounds. This review covers the pathogenesis, microbial biofilm formation, and immune response to chronic wounds. Furthermore, we also focus on macromolecule-based nanoparticles as wound healing therapies to reduce the increased mortality associated with chronic wound infections.
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Affiliation(s)
- Sourbh Suren Garg
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Rupal Dubey
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Lovely Professional University, Punjab, India
| | - Sandeep Sharma
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Lovely Professional University, Punjab, India
| | - Ashish Vyas
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Jeena Gupta
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India.
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Liu W, Ou P, Tian F, Liao J, Ma Y, Wang J, Jin X. Anti- Vibrio parahaemolyticus compounds from Streptomyces parvus based on Pan-genome and subtractive proteomics. Front Microbiol 2023; 14:1218176. [PMID: 37485508 PMCID: PMC10361664 DOI: 10.3389/fmicb.2023.1218176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 06/23/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction Vibrio parahaemolyticus is a foodborne pathogen commonly found in seafood, and drug resistance poses significant challenges to its control. This study aimed to identify novel drug targets for antibacterial drug discovery. Methods To identify drug targets, we performed a pan-genome analysis on 58 strains of V. parahaemolyticus genomes to obtain core genes. Subsequently, subtractive proteomics and physiochemical checks were conducted on the core proteins to identify potential therapeutic targets. Molecular docking was then employed to screen for anti-V. parahaemolyticus compounds using a in-house compound library of Streptomyces parvus, chosen based on binding energy. The anti-V. parahaemolyticus efficacy of the identified compounds was further validated through a series of experimental tests. Results and Discussion Pangenome analysis of 58 V. parahaemolyticus genomes revealed that there were 1,392 core genes. After Subtractive proteomics and physiochemical checks, Flagellar motor switch protein FliN was selected as a therapeutic target against V. parahaemolyticus. FliN was modeled and docked with Streptomyces parvus source compounds, and Actinomycin D was identified as a potential anti-V. parahaemolyticus agent with a strong binding energy. Experimental verification confirmed its effectiveness in killing V. parahaemolyticus and significantly inhibiting biofilm formation and motility. This study is the first to use pan-genome and subtractive proteomics to identify new antimicrobial targets for V. parahaemolyticus and to identify the anti-V. parahaemolyticus effect of Actinomycin D. These findings suggest potential avenues for the development of new antibacterial drugs to control V. parahaemolyticus infections.
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Affiliation(s)
- Wenbin Liu
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Peiyu Ou
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Fangyuan Tian
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jingyang Liao
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yan Ma
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jie Wang
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaobao Jin
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
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Angusamy A, Balasubramanian V, Arunmurugan B, Arunachalam K, Issac Abraham SVP, Murugesan S, Krishnasamy B, Sundaram J, Arumugam VR. Anti-infective potential of plant-derived quorum sensing inhibitors against multi-drug resistant human and aquatic bacterial pathogens. World J Microbiol Biotechnol 2023; 39:147. [PMID: 37022521 DOI: 10.1007/s11274-023-03578-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/10/2023] [Indexed: 04/07/2023]
Abstract
The present study intended to decipher the anti-infective potential of bioactive phytocompounds, such as rosmarinic acid, morin, naringin, chlorogenic acid, and mangiferin, against aquatic and human bacterial pathogens using Artemia spp. nauplii and Caenorhabditis elegans as animal models, respectively. Initially, the test compounds were screened against the QS traits in Vibrio spp., such as bioluminescence production and biofilm formation. The test compounds effectively inhibited the bioluminescence in V. harveyi. Further, the confocal laser scanning microscopic analysis revealed that these natural compounds could efficiently reduce the clumping morphology, a characteristic biofilm formation in Vibrio spp., without inhibiting bacterial growth. The results of in vivo analysis showed a significant increase in the survival of Artemia spp. nauplii infected with Vibrio spp. upon exposure to these compounds. Moreover, the compounds used in this study were already proven and reported for their quorum sensing inhibitory efficacy against Pseudomonas aeruginosa. Hence, the anti-infective efficacy of these compounds against P. aeruginosa (PAO1) and its clinical isolates (AS1 and AS2) was studied using C. elegans as a live animal model system. The results of time-killing assay deciphered that rosmarinic acid and naringin are being the most effective ones in rescuing the animals from P. aeruginosa infection followed by morin, mangiferin, and chlorogenic acid. Further, the toxicity results revealed that these compounds did not show any lethal effect on C. elegans and Artemia spp. nauplii at the tested concentrations. In conclusion, the phytochemicals used in this study were effective in controlling the QS-regulated virulence traits in Vibrio spp. and P. aeruginosa infections in Artemia spp. nauplii and C. elegans animal model systems, respectively.
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Affiliation(s)
- Annapoorani Angusamy
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Department of Zoology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India
| | - Vigneshkumar Balasubramanian
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Conservation of Coastal and Marine Resources (CMR) division, National Centre for Sustainable Coastal Management (NCSCM), Anna University campus, Tamil Nadu, 600 025, Chennai, India
| | - Balaji Arunmurugan
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Kannapan Arunachalam
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Department of Food Science and Technology, School of Agricultural Science, Shanghai Jiao Tong University, Shanghai, China
| | - Sybiya Vasantha Packiavathy Issac Abraham
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641 114, India
| | - Sivaranjani Murugesan
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
- Vaccine and Infectious Disease Organization-International Vaccine Centre, Saskatoon, SK, Canada
| | | | - Janarthanan Sundaram
- Department of Zoology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India
| | - Veera Ravi Arumugam
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India.
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Adu OT, Mohamed F, Naidoo Y, Adu TS, Chenia H, Dewir YH, Rihan H. Green Synthesis of Silver Nanoparticles from Diospyros villosa Extracts and Evaluation of Antioxidant, Antimicrobial and Anti-Quorum Sensing Potential. PLANTS 2022; 11:plants11192514. [PMID: 36235380 PMCID: PMC9573728 DOI: 10.3390/plants11192514] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022]
Abstract
The biosynthesis of silver nanoparticles (AgNPs) from Diospyros villosa leaves and stem bark extracts is described. The stem bark AgNPs of D. villosa synthesized at 80 °C (S80) showed good scavenging activity with a lower IC50 value of 8.75 µg·mL−1 compared to ascorbic acid (9.58 µg·mL−1). The total phenol content of the S80 AgNPs was measured and found to be 10.22 ± 0.14 mg.g−1 gallic acid equivalence (GAE). Bacterial growth inhibition (% GI) and violacein inhibition (% VI) of 10.08% and 58.83%, respectively, was observed against C.subtsugae CV017 with leaf AgNPs synthesized at 80 °C (L80) at 80 μg·mL−1. Stem bark AgNPs synthesized at room temperature (SRT) also indicated % GI of 13.83% and % VI of 65.97% against C. subtsugae CV017 at 160 μg·mL−1. Leaf AgNPs of D. villosa synthesized at room temperature (LRT), showed % GI of 29.07% and % VI of 56.53%, respectively, against C. violaceum ATCC 12472 at 320 μg·mL−1. The L80 and SRT at 160 μg·mL−1 and LRT at 320 μg·mL−1 may be considered as potential QS inhibitors following their activity against C. subtsugae CV017 and C. violaceum ATCC 12472, respectively. Therefore, D. villosa represents a potential source of antioxidants as well as an anti-quorum sensing therapeutic candidate for the control of Gram-negative bacterial infections.
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Affiliation(s)
- Oluwatosin Temilade Adu
- Department of Biological Sciences, School of Life Sciences, College of Agriculture, Engineering and Science, Westville Campus, University of KwaZulu-Natal, Private Bag X54001, Durban 4041, South Africa
| | - Farzana Mohamed
- Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Private Bag X54001, Durban 4041, South Africa
| | - Yougasphree Naidoo
- Department of Biological Sciences, School of Life Sciences, College of Agriculture, Engineering and Science, Westville Campus, University of KwaZulu-Natal, Private Bag X54001, Durban 4041, South Africa
| | - Temitope Samson Adu
- Department of Physiological Sciences, Obafemi Awolowo University, Ile Ife 220005, Nigeria
| | - Hafizah Chenia
- Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Private Bag X54001, Durban 4041, South Africa
| | - Yaser Hassan Dewir
- Plant Production Department, College of Food & Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
- Correspondence:
| | - Hail Rihan
- School of Biological Sciences, Faculty of Science and Environment, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK
- Phytome Life Sciences, Launceston PL15 7AB, UK
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Rajan R, Huo P, Chandran K, Manickam Dakshinamoorthi B, Yun SI, Liu B. A review on the toxicity of silver nanoparticles against different biosystems. CHEMOSPHERE 2022; 292:133397. [PMID: 34954197 DOI: 10.1016/j.chemosphere.2021.133397] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/03/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Despite significant progress made in the past two decades, silver nanoparticles (AgNPs) have not yet made it to the clinical trials. In addition, they showed both positive and negative effects in their toxicity from unicellular organism to well-developed multi-organ system, for example, rat. Although it is generally accepted that capped (bio)molecules have synergistic bioactivities and diminish the toxicity of metallic Ag core, convincing evidence is completely lacking. Therefore, in this review, we first highlight the recent in vivo toxicity studies of chemically manufactured AgNPs, biologically synthesized AgNPs and reference AgNPs of European Commission. Then, their toxic effects are compared with each other and the overlooked factors leading to the potential conflict of obtained toxicity results are discussed. Finally, suggestions are given to better design and conduct the future toxicity studies and to fast-track the successful clinical translation of AgNPs as well.
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Affiliation(s)
- Ramachandran Rajan
- Laboratory of Functional Molecules and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, Shandong, 255000, PR China
| | - PeiPei Huo
- Laboratory of Functional Molecules and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, Shandong, 255000, PR China
| | - Krishnaraj Chandran
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea; Department of Agricultural Convergence Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | | | - Soon-Il Yun
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea; Department of Agricultural Convergence Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea.
| | - Bo Liu
- Laboratory of Functional Molecules and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, Shandong, 255000, PR China.
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Paosen S, Wunnoo S, Bilhman S, Lethongkam S, Wira Septama A, Piyawan Voravuthikunchai S. Inhibition of biofilm formation, adhesion and invasion in Caco‐2 cells by foodborne pathogens using phyto‐mediated synthesised silver nanoparticles from industrial wastes. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Supakit Paosen
- Division of Biological Science Faculty of Science Natural Product Research Center of Excellence, and Center of Antimicrobial Biomaterial Innovation‐Southeast Asia Prince of Songkla University Songkhla Thailand
| | - Suttiwan Wunnoo
- Division of Biological Science Faculty of Science, and Natural Product Research Center of Excellence Prince of Songkla University Songkhla Thailand
| | - Siwaporn Bilhman
- Division of Biological Science Faculty of Science, and Natural Product Research Center of Excellence Prince of Songkla University Songkhla Thailand
| | - Sakkarin Lethongkam
- Division of Biological Science Faculty of Science, and Natural Product Research Center of Excellence Prince of Songkla University Songkhla Thailand
| | - Abdi Wira Septama
- Research Center for Chemistry, National Research and Innovation Agency, Republic of Indonesia, Kawasan Puspiptek Serpong 15314 Indonesia
| | - Supayang Piyawan Voravuthikunchai
- Division of Biological Science Faculty of Science Natural Product Research Center of Excellence, and Center of Antimicrobial Biomaterial Innovation‐Southeast Asia Prince of Songkla University Songkhla Thailand
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Shanmugapriya K, Palanisamy S, Boomi P, Subaskumar R, Ravikumar S, Thayumanavan T. An eco-friendly Gnaphalium polycaulon mediated silver nanoparticles: Synthesis, characterization, antimicrobial, wound healing and drug release studies. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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Machado M, Machado S, Pimentel FB, Freitas V, Alves RC, Oliveira MBPP. Amino Acid Profile and Protein Quality Assessment of Macroalgae Produced in an Integrated Multi-Trophic Aquaculture System. Foods 2020; 9:foods9101382. [PMID: 33003638 PMCID: PMC7600167 DOI: 10.3390/foods9101382] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/22/2020] [Accepted: 09/28/2020] [Indexed: 11/16/2022] Open
Abstract
Seaweeds are a recognized source of bioactive compounds and techno-functional ingredients. However, its protein fraction is still underexplored. The aim of this study was to determine the total and free amino acid profile and protein content of four seaweeds species (Porphyra dioica, Porphyra umbilicalis,Gracilaria vermiculophylla, and Ulva rigida) produced in an integrated multi-trophic aquaculture system, while assessing their protein quality. Samples were submitted to acid and alkaline hydrolysis (total amino acids) and to an aqueous extraction (free amino acids) followed by an automated online derivatization procedure, and analyzed by reverse phase-high performance liquid chromatography. Protein-, non-protein and total-nitrogen were quantified by the Kjeldahl method. Crude and true protein contents were estimated based on the nitrogen and amino acid composition. Protein quality was assessed based on the amino acids profile. Porphyra species presented the highest protein content compared to the remaining three seaweed species tested. All samples presented a complete profile of essential amino acids and a high quality protein profile, according to World Health Organization and Food and Agriculture Organization standards. Methionine and tryptophan were the first limiting amino acids in all species. Red species (Porphyra and Gracilaria) presented high levels of free alanine, glutamic, and aspartic acids. The results highlight the potential of using seaweeds as an alternative and sustainable source of protein and amino acids for human nutrition and industrial food processing.
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Affiliation(s)
- Marlene Machado
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (M.M.); (S.M.); (M.B.P.P.O.)
| | - Susana Machado
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (M.M.); (S.M.); (M.B.P.P.O.)
| | - Filipa B. Pimentel
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (M.M.); (S.M.); (M.B.P.P.O.)
- Correspondence: (F.B.P.); (R.C.A.)
| | - Victor Freitas
- LAQV, REQUIMTE, Department of Chemical and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal;
| | - Rita C. Alves
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (M.M.); (S.M.); (M.B.P.P.O.)
- Correspondence: (F.B.P.); (R.C.A.)
| | - M. Beatriz P. P. Oliveira
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (M.M.); (S.M.); (M.B.P.P.O.)
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Khan F, Tabassum N, Anand R, Kim YM. Motility of Vibrio spp.: regulation and controlling strategies. Appl Microbiol Biotechnol 2020; 104:8187-8208. [PMID: 32816086 DOI: 10.1007/s00253-020-10794-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 12/12/2022]
Abstract
Flagellar motility in bacteria is a highly regulated and complex cellular process that requires high energy investment for movement and host colonization. Motility plays an important role in the lifestyle of Vibrio spp. in the aquatic environment and during host colonization. Flagellar motility in vibrios is associated with several cellular processes, such as movement, colonization, adhesion, biofilm formation, and virulence. The transcription of all flagella-related genes occurs hierarchically and is regulated positively or negatively by several transcription factors and regulatory proteins. The flagellar regulatory hierarchy is well studied in Vibrio cholerae and Vibrio parahaemolyticus. Here, we compared the regulatory cascade and molecules involved in the flagellar motility of V. cholerae and V. parahaemolyticus in detail. The evolutionary relatedness of the master regulator of the polar and lateral flagella in different Vibrio species is also discussed. Although they can form symbiotic associations of some Vibrio species with humans and aquatic organisms can be harmed by several species of Vibrio as a result of surface contact, characterized by flagellar movement. Thus, targeting flagellar motility in pathogenic Vibrio species is considered a promising approach to control Vibrio infections. This approach, along with the strategies for controlling flagellar motility in different species of Vibrio using naturally derived and chemically synthesized compounds, is discussed in this review. KEY POINTS: • Vibrio species are ubiquitous and distributed across the aquatic environments. • The flagellar motility is responsible for the chemotactic movement and initial colonization to the host. • The transition from the motile into the biofilm stage is one of the crucial events in the infection. • Several signaling pathways are involved in the motility and formation of biofilm. • Attenuation of motility by naturally derived or chemically synthesized compounds could be a potential treatment for preventing Vibrio biofilm-associated infections.
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Affiliation(s)
- Fazlurrahman Khan
- Institute of Food Science, Pukyong National University, Busan, 48513, South Korea.
| | - Nazia Tabassum
- Industrial Convergence Bionix Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Raksha Anand
- Department of Life Science, School of Basic Science and Research, Sharda University, 201306, Greater Noida, U.P., India
| | - Young-Mog Kim
- Institute of Food Science, Pukyong National University, Busan, 48513, South Korea. .,Department of Food Science and Technology, Pukyong National University, Busan, 48513, South Korea.
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12
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Development of inter-polymeric complex of anionic polysaccharides, alginate/k-carrageenan bio-platform for burn dressing. Int J Biol Macromol 2020; 157:83-95. [DOI: 10.1016/j.ijbiomac.2020.04.157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 02/06/2023]
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13
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Padmini N, Ajilda AAK, Prabakaran P, Sivakumar N, Selvakumar G. Efficacy of marine cyanobacterium Oxynema thaianum ALU PBC5 against multi drug resistant Gram negative pathogens. J Appl Microbiol 2020; 130:50-60. [PMID: 32594639 DOI: 10.1111/jam.14760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/08/2020] [Accepted: 06/22/2020] [Indexed: 11/30/2022]
Abstract
AIM Emergence of extended antibiotic resistance among several human bacterial pathogens often leads to the failure of existing antibiotics to treat bacterial infections worldwide. Hence, the present study is aimed to explore antibacterial activity of marine cyanobacterium against MDR pathogens. METHODS AND RESULTS The cyanobacterial samples were collected and isolated from Thondi Palk Strait region. The isolate was subjected to polarity based solvent extraction and checked for their antibacterial activity against test bacterial pathogens. The active principles from chloroform extract of Oxynema thaianum (CEOT) were partially purified through thin layer chromatography (TLC). The active principle with highest activity was further characterized by FTIR, high performance liquid chromatography (HPLC) and gas chromatography mass spectrometry (GC-MS) analysis. Among the eight extracts tested, CEOT showed effective zone of clearance against ESBL producing Escherichia coli and Klebsiella pneumoniae in disc diffusion method. In TLC, all the purified five fractions were eluted and tested for their antibacterial activity against test pathogens. The third fraction showing maximum activity was subjected to HPLC analysis for checking its purity. In GC-MS analysis, 9-octadecenoic acid, methyl ester and hexadecanoic acid were identified as the major chemical compounds. CONCLUSION Hence, the present study was concluded that O. thaianum ALU PBC5 is a promising agent to treat ESBL producing MDR bacterial pathogens. SIGNIFICANCE AND IMPACT OF THE STUDY This is the pioneer study on screening and isolation of bioactive compounds from the marine cyanobacteria against MDR pathogens such as E. coli and K. pneumoniae. Here, 9-octadecenoic acid, methyl ester and hexadecanoic acid were identified as the major chemical compounds through TLC, FTIR, HPLC and GC-MS. From this screen, we identified the bioactive compounds against ESBL producing multidrug resistant pathogens such as E. coli and K. pneumoniae.
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Affiliation(s)
- N Padmini
- Department of Microbiology, Science Campus, Alagappa University, Karaikudi, Tamil Nadu, India
| | - A A K Ajilda
- Department of Microbiology, Science Campus, Alagappa University, Karaikudi, Tamil Nadu, India
| | - P Prabakaran
- Department of Microbiology, Science Campus, Alagappa University, Karaikudi, Tamil Nadu, India
| | - N Sivakumar
- School of Biotechnology, Madurai Kamaraj University, Madurai, Tamil Nadu, India
| | - G Selvakumar
- Department of Microbiology, Science Campus, Alagappa University, Karaikudi, Tamil Nadu, India
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Wang Y, Armato U, Wu J. Targeting Tunable Physical Properties of Materials for Chronic Wound Care. Front Bioeng Biotechnol 2020; 8:584. [PMID: 32596229 PMCID: PMC7300298 DOI: 10.3389/fbioe.2020.00584] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 05/13/2020] [Indexed: 12/12/2022] Open
Abstract
Chronic wounds caused by infections, diabetes, and radiation exposures are becoming a worldwide growing medical burden. Recent progress highlighted the physical signals determining stem cell fates and bacterial resistance, which holds potential to achieve a better wound regeneration in situ. Nanoparticles (NPs) would benefit chronic wound healing. However, the cytotoxicity of the silver NPs (AgNPs) has aroused many concerns. This review targets the tunable physical properties (i.e., mechanical-, structural-, and size-related properties) of either dermal matrixes or wound dressings for chronic wound care. Firstly, we discuss the recent discoveries about the mechanical- and structural-related regulation of stem cells. Specially, we point out the currently undocumented influence of tunable mechanical and structural properties on either the fate of each cell type or the whole wound healing process. Secondly, we highlight novel dermal matrixes based on either natural tropoelastin or synthetic elastin-like recombinamers (ELRs) for providing elastic recoil and resilience to the wounded dermis. Thirdly, we discuss the application of wound dressings in terms of size-related properties (i.e., metal NPs, lipid NPs, polymeric NPs). Moreover, we highlight the cytotoxicity of AgNPs and propose the size-, dose-, and time-dependent solutions for reducing their cytotoxicity in wound care. This review will hopefully inspire the advanced design strategies of either dermal matrixes or wound dressings and their potential therapeutic benefits for chronic wounds.
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Affiliation(s)
- Yuzhen Wang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College, Beijing, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, China
- Department of Burn and Plastic Surgery, Air Force Hospital of PLA Central Theater Command, Datong, China
| | - Ubaldo Armato
- Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona Medical School Verona, Verona, Italy
- Department of Burn and Plastic Surgery, Second People's Hospital of Shenzhen, Shenzhen University, Shenzhen, China
| | - Jun Wu
- Department of Burn and Plastic Surgery, Second People's Hospital of Shenzhen, Shenzhen University, Shenzhen, China
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Paladini F, Pollini M. Antimicrobial Silver Nanoparticles for Wound Healing Application: Progress and Future Trends. MATERIALS 2019; 12:ma12162540. [PMID: 31404974 PMCID: PMC6719912 DOI: 10.3390/ma12162540] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/04/2019] [Accepted: 08/05/2019] [Indexed: 01/28/2023]
Abstract
Recent data have reported that the burden of infections related to antibiotic-resistant bacteria in the European Union and European Economic Area (EEA) can be estimated as the cumulative burden of tuberculosis, influenza, and human immunodeficiency virus (HIV). In wound management, the control of infections represents a crucial issue and a multi-billion dollar industry worldwide. For diabetic wounds ulcers, in particular, infections are related to the majority of amputations in diabetic patients, which today represent an increasing number of the elderly. The greatest barrier to healing is represented by the biofilm, an organized consortium of bacteria encapsulated in a self-produced extracellular polymeric substance with high resistance to conventional antimicrobial therapies. There is an urgent need for novel anti-biofilm strategies and novel antimicrobial agents and, in this scenario, silver nanotechnology has received tremendous attention in recent years in therapeutically enhanced healthcare. Due to its intrinsic therapeutic properties and the broad-spectrum antimicrobial efficacy, silver nanoparticles have opened new horizons towards novel approaches in the control of infections in wound healing. This review aims at providing the reader with an overview of the most recent progress in silver nanotechnology, with a special focus on the role of silver in the wound healing process.
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Affiliation(s)
- Federica Paladini
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Mauro Pollini
- Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy.
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Sowndarya J, Farisa Banu S, Madhura G, Yuvalakshmi P, Rubini D, Bandeira Junior G, Baldisserotto B, Vadivel V, Nithyanand P. Agro food by-products and essential oil constituents curtail virulence and biofilm of Vibrio harveyi. Microb Pathog 2019; 135:103633. [PMID: 31326562 DOI: 10.1016/j.micpath.2019.103633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 02/02/2023]
Abstract
Vibrio harveyi causes severe loss to the aquaculture industry due to its virulence, which is mediated by Quorum sensing (QS) and biofilm formation. In the current study, we have explored the anti-virulent properties and biofilm disruption ability of luteolin (extracted from coconut shell) and linalool against this important aquaculture pathogen. HPLC analysis of the methanolic extract of coconut shells revealed a single major peak which matched to the standard luteolin which was further elucidated by NMR studies. Further, luteolin and linalool were screened for their ability to inhibit biofilms and various quorum sensing mediated virulence factors of V. harveyi. The Minimum Inhibitory Concentration (MIC) of the two compounds was determined and the sub-inhibitory concentrations of the compounds were able to inhibit biofilm formation. Both the compounds disrupted about 60-70% mature biofilms, which was also visually observed by light microscopy. Both linalool and luteolin exhibited a significant reduction in the production of EPS and alginate in the biofilms matrix of V. harveyi which was confirmed by Scanning Electron Microscopy (SEM). Both compounds inhibited the swarming and swimming motility, the crucial quorum sensing (QS) mediated virulence of V. harveyi. The present study shows the presence of valuable polyphenolic compound like luteolin in coconut shells that are discarded as a waste. From the present study we envisage that luteolin and linalool can serve as potent anti-virulent agents to combat QS mediated infections against aquaculture pathogens.
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Affiliation(s)
- Jothipandiyan Sowndarya
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Sanaulla Farisa Banu
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Gunasekaran Madhura
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Prabakaran Yuvalakshmi
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Durairajan Rubini
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Guerino Bandeira Junior
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Vellingiri Vadivel
- Chemical Biology Lab, School of Chemical and Biotechnology (SCBT/CARISM), SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
| | - Paramasivam Nithyanand
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India.
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Goel A, Meher MK, Gupta P, Gulati K, Pruthi V, Poluri KM. Microwave assisted κ-carrageenan capped silver nanocomposites for eradication of bacterial biofilms. Carbohydr Polym 2018; 206:854-862. [PMID: 30553393 DOI: 10.1016/j.carbpol.2018.11.033] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/08/2018] [Accepted: 11/11/2018] [Indexed: 12/12/2022]
Abstract
Maturation of bacterial biofilms and their resistance to recurrent antimicrobial agents results in convoluted infectious diseases. In the current study, kappa-Carrageenan (κ-Carrageenan/CRG), was used to formulate CRG-silver nanocomposites through a facile microwave green synthesis approach. CRG-Ag nanoparticles of size 50 ± 10 nm were obtained by using CRG as a reducing and stabilizing agent. CRG-Ag nanoparticles were highly effective against both S. aureus and P. aeruginosa mediated biofilms and acted as a broad spectrum antibacterial agent even after six months. CRG-Ag nanoparticles encapsulated in KCl cross-linked hydrogel also exhibited excellent thermal stability, and antimicrobial potency. All these results depict that CRG-Ag nanocomposites appear as a promising approach to eradicate bacterial biofilms in food packaging and biomedical applications.
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Affiliation(s)
- Apoorva Goel
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Mukesh Kumar Meher
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Payal Gupta
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Khushboo Gulati
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Vikas Pruthi
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Krishna Mohan Poluri
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.
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Plant nutraceuticals (Quercetrin and Afzelin) capped silver nanoparticles exert potent antibiofilm effect against food borne pathogen Salmonella enterica serovar Typhi and curtail planktonic growth in zebrafish infection model. Microb Pathog 2018; 120:109-118. [PMID: 29715535 DOI: 10.1016/j.micpath.2018.04.044] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/27/2018] [Accepted: 04/23/2018] [Indexed: 11/22/2022]
Abstract
Purified plant nutraceuticals afzelin and quercetrin from an edible plant- Crotolaria tetragona was employed for the fabrication of silver nanoparticles (AgNPs) by a sunlight mediated process. From among a panel of strains tested, AgNPs displayed potent bacteriostatic and bactericidal effect against P. aeruginosa and S. Typhi. Time kill studies revealed green synthesized AgNPs displayed comparable bactericidal effect with chemically synthesized AgNPs against S. Typhi. Antibiofilm potential of AgNPs showed that they were highly effective at sub MIC concentrations in causing 50% biofilm inhibition against food borne pathogen S. Typhi implying that antibiofilm effect is independent of antibacterial effect, which was evidenced by fluorescent imaging and SEM imaging. Mechanistic studies revealed that reduced cell surface hydrophobicity, decreased surface adherence, loss of membrane potential contributed to antibiofilm potential of afzelin/quercetrin AgNPs. Green synthesized afzelin/quercetrin AgNPs were also relatively less toxic and more effective in curtailing bioburden of S. Typhi in infected zebrafish by > 3 log fold. Ability of sunlight reduced afzelin/quercetrin NPs to mitigate planktonic mode of growth in vitro and in vivo and curtail biofilm formation of S. Typhi in vitro demonstrates its potential to curtail food borne pathogen in planktonic and biofilm mode of growth.
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Ravindran D, Ramanathan S, Arunachalam K, Jeyaraj G, Shunmugiah K, Arumugam V. Phytosynthesized silver nanoparticles as antiquorum sensing and antibiofilm agent against the nosocomial pathogen Serratia marcescens
: an in vitro
study. J Appl Microbiol 2018; 124:1425-1440. [DOI: 10.1111/jam.13728] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 01/13/2018] [Accepted: 02/02/2018] [Indexed: 12/16/2022]
Affiliation(s)
- D. Ravindran
- Department of Biotechnology; Science Campus; Alagappa University; Karaikudi Tamil Nadu India
| | - S. Ramanathan
- Department of Biotechnology; Science Campus; Alagappa University; Karaikudi Tamil Nadu India
| | - K. Arunachalam
- Department of Biotechnology; Science Campus; Alagappa University; Karaikudi Tamil Nadu India
| | - G.P. Jeyaraj
- TIL Biosciences - Animal Health Division of Tablets (India) Limited; Jhaver Centre; Egmore Chennai Tamil Nadu India
| | - K.P. Shunmugiah
- Department of Biotechnology; Science Campus; Alagappa University; Karaikudi Tamil Nadu India
| | - V.R. Arumugam
- Department of Biotechnology; Science Campus; Alagappa University; Karaikudi Tamil Nadu India
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Muthamil S, Devi VA, Balasubramaniam B, Balamurugan K, Pandian SK. Green synthesized silver nanoparticles demonstrating enhanced in vitro and in vivo antibiofilm activity against Candida
spp. J Basic Microbiol 2018; 58:343-357. [DOI: 10.1002/jobm.201700529] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/08/2018] [Accepted: 01/20/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Subramanian Muthamil
- Department of Biotechnology; Science Campus; Alagappa University; Karaikudi Tamil Nadu India
| | - Vivekanandham Amsa Devi
- Department of Biotechnology; Science Campus; Alagappa University; Karaikudi Tamil Nadu India
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Synthesis and characterization of silver nanoparticles using Gelidium amansii and its antimicrobial property against various pathogenic bacteria. Microb Pathog 2018; 114:41-45. [DOI: 10.1016/j.micpath.2017.11.013] [Citation(s) in RCA: 177] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/07/2017] [Accepted: 11/09/2017] [Indexed: 11/21/2022]
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