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Kungwani NA, Panda J, Mishra AK, Chavda N, Shukla S, Vikhe K, Sharma G, Mohanta YK, Sharifi-Rad M. Combating bacterial biofilms and related drug resistance: Role of phyto-derived adjuvant and nanomaterials. Microb Pathog 2024; 195:106874. [PMID: 39181190 DOI: 10.1016/j.micpath.2024.106874] [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: 05/09/2024] [Revised: 08/16/2024] [Accepted: 08/19/2024] [Indexed: 08/27/2024]
Abstract
The emergence of antimicrobial resistance (AMR) in clinical microbes has led to a search for novel antibiotics for combating bacterial infections. The treatment of bacterial infections becomes more challenging with the onset of biofilm formation. AMR is further accelerated by biofilm physiology and differential gene expression in bacteria with an inherent resistance to conventional antibiotics. In the search for innovative strategies to control the spread of AMR in clinical isolates, plant-derived therapeutic metabolites can be repurposed to control biofilm-associated drug resistance. Unlike antibiotics, designed to act on a single cellular process, phytochemicals can simultaneously target multiple cellular components. Furthermore, they can disrupt biofilm formation and inhibit quorum sensing, offering a comprehensive approach to combat bacterial infections. In bacterial biofilms, the first line of AMR is due to biofilms associated with the extracellular matrix, diffusion barriers, quorum sensing, and persister cells. These extracellular barriers can be overcome using phytochemical-based antibiotic adjuvants to increase the efficacy of antibiotic treatment and restrict the spread of AMR. Furthermore, phytochemicals can be used to target bacterial intracellular machinery such as DNA replication, protein synthesis, efflux pumps, and degrading enzymes. In parallel with pristine phytochemicals, phyto-derived nanomaterials have emerged as an effective means of fighting bacterial biofilms. These nanomaterials can be formulated to cross the biofilm barriers and function on cellular targets. This review focuses on the synergistic effects of phytochemicals and phyto-derived nanomaterials in controlling the progression of biofilm-related AMR. IT provides comprehensive insights into recent advancements and the underlying mechanisms of the use of phyto-derived adjuvants and nanomaterials.
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Affiliation(s)
- Neelam Amit Kungwani
- Department of Environmental Biotechnology, Gujarat Biotechnology University, Gandhinagar, Gujarat, 382355, India.
| | - Jibanjyoti Panda
- Nano-biotechnology and Translational Knowledge Laboratory, Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Techno City, 9th Mile, Baridua, Ri-Bhoi, 793101, Meghalaya, India
| | - Awdhesh Kumar Mishra
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | | | - Sudhir Shukla
- Homi Bhabha National Institute, Biofouling and Biofilm Processes Section, WSCD, Chemistry Group, Bhabha Atomic Research Centre, Kalpakkam, Tamilnadu, 603102, India
| | - Kalyani Vikhe
- Department of Environmental Biotechnology, Gujarat Biotechnology University, Gandhinagar, Gujarat, 382355, India
| | - Gunjan Sharma
- Department of Plant Biotechnology, Gujarat Biotechnology University, Gandhinagar, Gujarat, 382355, India
| | - Yugal Kishore Mohanta
- Nano-biotechnology and Translational Knowledge Laboratory, Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Techno City, 9th Mile, Baridua, Ri-Bhoi, 793101, Meghalaya, India; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
| | - Majid Sharifi-Rad
- Department of Range and Watershed Management, Faculty of Water and Soil, University of Zabol, Zabol, 98613-35856, Iran.
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Sarkar S, Roy A, Mitra R, Kundu S, Banerjee P, Acharya Chowdhury A, Ghosh S. Escaping the ESKAPE pathogens: A review on antibiofilm potential of nanoparticles. Microb Pathog 2024; 194:106842. [PMID: 39117012 DOI: 10.1016/j.micpath.2024.106842] [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: 04/18/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
ESKAPE pathogens, a notorious consortium comprising Enterococcusfaecium, Staphylococcusaureus, Klebsiellapneumoniae, Acinetobacterbaumannii, Pseudomonasaeruginosa, and Enterobacter species, pose formidable challenges in healthcare settings due to their multidrug-resistant nature. The increasing global cases of antimicrobial-resistant ESKAPE pathogens are closely related to their remarkable ability to form biofilms. Thus, understanding the unique mechanisms of antimicrobial resistance of ESKAPE pathogens and the innate resilience of biofilms against traditional antimicrobial agents is important for developing innovative strategies to establish effective control methods against them. This review offers a thorough analysis of biofilm dynamics, with a focus on the general mechanisms of biofilm formation, the significant contribution of persister cells in the resistance mechanisms, and the recurrence of biofilms in comparison to planktonic cells. Additionally, this review highlights the potential strategies of nanoparticles for managing biofilms in the ESKAPE group of pathogens. Nanoparticles, with their unique physicochemical properties, provide promising opportunities for disrupting biofilm structures and improving antimicrobial effectiveness. The review has explored interactions between nanoparticles and biofilms, covering a range of nanoparticle types such as metal, metal-oxide, surface-modified, and functionalized nanoparticles, along with organic nanoparticles and nanomaterials. The additional focus of this review also encompasses green synthesis techniques of nanoparticles that involve plant extract and supernatants from bacterial and fungal cultures as reducing agents. Furthermore, the use of nanocomposites and nano emulsions in biofilm management of ESKAPE is also discussed. To conclude, the review addresses the current obstacles and future outlooks in nanoparticle-based biofilm management, stressing the necessity for further research and development to fully exploit the potential of nanoparticles in addressing biofilm-related challenges.
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Affiliation(s)
| | - Ankita Roy
- Department of Biosciences, JIS University, Kolkata, India
| | - Rangan Mitra
- Department of Biosciences, JIS University, Kolkata, India
| | - Sweta Kundu
- Department of Biosciences, JIS University, Kolkata, India
| | | | | | - Suparna Ghosh
- Department of Biosciences, JIS University, Kolkata, India.
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Wintachai P, Jaroensawat N, Harding P, Wiwasuku T, Mitsuwan W, Septama AW. Antibacterial and antibiofilm efficacy of Solanum lasiocarpum root extract synthesized silver/silver chloride nanoparticles against Staphylococcus haemolyticus associated with bovine mastitis. Microb Pathog 2024; 192:106724. [PMID: 38834135 DOI: 10.1016/j.micpath.2024.106724] [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: 03/14/2024] [Revised: 04/30/2024] [Accepted: 06/01/2024] [Indexed: 06/06/2024]
Abstract
Staphylococcus haemolyticus is a cause of bovine mastitis, leading to inflammation in the mammary gland. This bacterial infection adversely affects animal health, reducing milk quality and yield. Its emergence has been widely reported, representing a significant economic loss for dairy farms. Interestingly, S. haemolyticus exhibits higher levels of antimicrobial resistance than other coagulase-negative Staphylococci. In this study, we synthesized silver/silver chloride nanoparticles (Ag/AgCl-NPs) using Solanum lasiocarpum root extract and evaluated their antibacterial and antibiofilm activities against S. haemolyticus. The formation of the Ag/AgCl-NPs was confirmed using UV-visible spectroscopy, which revealed maximum absorption at 419 nm. X-ray diffraction (XRD) analysis demonstrated the crystalline nature of the Ag/AgCl-NPs, exhibiting a face-centered cubic lattice. Fourier transform infrared (FT-IR) spectroscopy elucidated the functional groups potentially involved in the Ag/AgCl-NPs synthesis. Transmission electron microscopy (TEM) analysis revealed that the average particle size of the Ag/AgCl-NPs was 10 nm. Antimicrobial activity results indicated that the minimum inhibitory concentration (MIC) and maximum bactericidal concentration (MBC) of the Ag/AgCl-NPs treatment were 7.82-15.63 μg/mL towards S. haemolyticus. Morphological changes in bacterial cells treated with the Ag/AgCl-NPs were observed under scanning electron microscopy (SEM). The Ag/AgCl-NPs reduced both the biomass of biofilm formation and preformed biofilm by approximately 20.24-94.66 % and 13.67-88.48 %. Bacterial viability within biofilm formation and preformed biofilm was reduced by approximately 21.56-77.54 % and 18.9-71.48 %, respectively. This study provides evidence of the potential of the synthesized Ag/AgCl-NPs as an antibacterial and antibiofilm agent against S. haemolyticus.
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Affiliation(s)
- Phitchayapak Wintachai
- School of Science, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand; Functional Materials and Nanotechnology Center of Excellence, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand.
| | - Nannapat Jaroensawat
- School of Science, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand
| | - Phimphaka Harding
- School of Chemistry, Institute of Science, Suranaree University of Technology, Muang District, Nakhon Ratchasima, 30000, Thailand
| | - Theanchai Wiwasuku
- School of Science, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand; Functional Materials and Nanotechnology Center of Excellence, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand
| | - Watcharapong Mitsuwan
- Akkhraratchakumari Veterinary College, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand; One Health Research Center, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand; Center of Excellence in Innovation of Essential Oil and Bio-active Compound, Walailak University, Thasala, Nakhon Si Thammarat, 80161, Thailand
| | - Abdi Wira Septama
- Research Centre for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), South Tangerang, Banten, 15314, Indonesia
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El Megdar S, Fayzi L, Elkheloui R, Laktib A, Bourouache M, El Boulani A, Abou Oualid H, Cherifi K, Msanda F, Hassi M, Mimouni R, Hamadi F. Biological Synthesis of Silver Nanoparticles from Lavandula mairei Humbert: Antibacterial and Antioxidant Activities. Curr Microbiol 2024; 81:151. [PMID: 38647541 DOI: 10.1007/s00284-024-03670-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 03/18/2024] [Indexed: 04/25/2024]
Abstract
Hospital-acquired infections involving carbapenem-resistant Acinetobacter baumannii (A. baumannii) and extended spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae pose significant challenges in the intensive care units. The lack of novel antimicrobial drugs amplifies the urgency to explore innovative management strategies. Nanotechnology, with its ability to generate nanoparticles possessing specific properties beneficial in drug delivery and nanomedicine, stands as a pivotal research domain. The objective of this study was to synthesize, for the first time, biologically silver nanoparticles (Ag-NPs) from Lavandula mairei Humbert (L. mairei) plant. The biosynthesized Ag-NPs were characterized by UV-visible spectral analysis, X-Ray diffraction Analysis, Fourier transform infrared spectroscopy analysis, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy. Subsequently, the antibacterial and antioxidant activities of Ag-NPs were assessed using the micro-dilution method, DPPH test and FRAP assay, respectively. The green-synthesized Ag-NPs exhibited high antibacterial activity against ESBL-producing multidrug-resistant (MDR) strains and against carbapenem-resistant and non-carbapenem-resistant strains of A. baumannii, as well as a very interesting antioxidant activity. The present study suggests that these results hold very promising for the potential application of biologically synthesized Ag-NPs from L. mairei (Ag-LM-NPs) in the invention of novel antibacterial and antioxidant agents.
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Affiliation(s)
- Soufiane El Megdar
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Lahbib Fayzi
- Laboratory of Biotechnologies and Valorization of Natural Resources, Biology Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Raja Elkheloui
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Asma Laktib
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Bourouache
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Abdellah El Boulani
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Hicham Abou Oualid
- Green Energy Park, Institut de Recherche en Energie Solaire Et Energies Nouvelles (IRESEN), Benguerir, Morocco
| | - Khalil Cherifi
- Laboratory of Biotechnologies and Valorization of Natural Resources, Biology Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Fouad Msanda
- Laboratory of Biotechnologies and Valorization of Natural Resources, Biology Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Hassi
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Rachida Mimouni
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco
| | - Fatima Hamadi
- Laboratory of Microbial Biotechnology and Plants Protection. Biology, Department. Sciences Faculty, Ibn Zohr University, Agadir, Morocco.
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Allend SO, Oliveira Garcia M, da Cunha KF, de Albernaz DTF, Panagio LA, Nakazaro G, Reis GF, Oliveira TL, Neto ACPS, Hartwig DD. The synergic and addictive activity of biogenic silver nanoparticle associated with meropenem against carbapenem-resistant Acinetobacter baumannii. J Appl Microbiol 2024; 135:lxae046. [PMID: 38383758 DOI: 10.1093/jambio/lxae046] [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: 08/15/2023] [Revised: 01/02/2024] [Accepted: 02/20/2024] [Indexed: 02/23/2024]
Abstract
AIMS Antibiotic management of infections caused by Acinetobacter baumannii often fails due to antibiotic resistance (especially to carbapenems) and biofilm-forming strains. Thus, the objective here was to evaluate in vitro the antibacterial and antibiofilm activity of biogenic silver nanoparticle (Bio-AgNP) combined with meropenem, against multidrug-resistant isolates of A. baumannii. METHODS AND RESULTS In this study, A. baumannii ATCC® 19606™ and four carbapenem-resistant A. baumannii (Ab) strains were used. The antibacterial activity of Bio-AgNP and meropenem was evaluated through broth microdilution. The effect of the Bio-AgNP association with meropenem was determined by the checkboard method. Also, the time-kill assay and the integrity of the bacterial cell membrane were evaluated. Furthermore, the antibiofilm activity of Bio-AgNP and meropenem alone and in combination was determined. Bio-AgNP has antibacterial activity with minimum inhibitory concentration (MIC) and minimum bactericidal concentration ranging from 0.46 to 1.87 μg ml-1. The combination of Bio-AgNP and meropenem showed a synergistic and additive effect against Ab strains, and Bio-AgNP was able to reduce the MIC of meropenem from 4- to 8-fold. Considering the time-kill of the cell, meropenem and Bio-AgNP when used in combination reduced bacterial load to undetectable levels within 10 min to 24 h after treatment. Protein leakage was observed in all treatments evaluated. When combined, meropenem/Bio-AgNP presents biofilm inhibition for Ab2 isolate and ATCC® 19606™, with 21% and 19%, and disrupts the biofilm from 22% to 50%, respectively. The increase in nonviable cells in the biofilm can be observed after treatment with Bio-AgNP and meropenem in carbapenem-resistant A. baumannii strains. CONCLUSIONS The combination of Bio-AgNP with meropenem can be a therapeutic option in the treatment of infections caused by carbapenem-resistant A. baumannii.
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Affiliation(s)
- Suzane Olachea Allend
- Department of Microbiology and Parasitology, Institute of Biology, Federal University of Pelotas, CEP 96010-900 Pelotas, RS, Brazil
| | - Marcelle Oliveira Garcia
- Department of Microbiology and Parasitology, Institute of Biology, Federal University of Pelotas, CEP 96010-900 Pelotas, RS, Brazil
| | - Kamila Furtado da Cunha
- Department of Microbiology and Parasitology, Institute of Biology, Federal University of Pelotas, CEP 96010-900 Pelotas, RS, Brazil
| | - Déborah Trota Farias de Albernaz
- Department of Microbiology and Parasitology, Institute of Biology, Federal University of Pelotas, CEP 96010-900 Pelotas, RS, Brazil
| | | | - Gerson Nakazaro
- Department of Microbiology, State University of Londrina, CEP 86057-970 Londrina, PR, Brazil
| | - Guilherme Fonseca Reis
- Department of Microbiology, State University of Londrina, CEP 86057-970 Londrina, PR, Brazil
| | - Thaís Larré Oliveira
- Biotechnology Nucleus, Technological Development Center, Federal University of Pelotas, CEP 96010-900 Pelotas, RS, Brazil
| | - Amilton Clair Pinto Seixas Neto
- Department of Microbiology and Parasitology, Institute of Biology, Federal University of Pelotas, CEP 96010-900 Pelotas, RS, Brazil
| | - Daiane Drawanz Hartwig
- Department of Microbiology and Parasitology, Institute of Biology, Federal University of Pelotas, CEP 96010-900 Pelotas, RS, Brazil
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Akar Z, Akay S, Ejder N, Özad Düzgün A. Determination of the Cytotoxicity and Antibiofilm Potential Effect of Equisetum arvense Silver Nanoparticles. Appl Biochem Biotechnol 2024; 196:909-922. [PMID: 37273097 DOI: 10.1007/s12010-023-04587-7] [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] [Accepted: 05/26/2023] [Indexed: 06/06/2023]
Abstract
This study aimed to synthesize and characterize silver nanoparticles (AgNPs) by green synthesis from Equisetum arvense (Ea) extracts and to investigate their cytotoxicity, antibiofilm activity, and α-glucosidase enzyme inhibition. Diverse characterization techniques were applied to verify the production of nanoparticles. SEM examination confirmed that the size of nanoparticles is in the range of 40-60 nm. Also, interactions between silver and natural compounds of plant extract were confirmed through FT-IR and EDX analyses. It was determined that Equisetum arvense silver nanoparticles had antibiofilm activity against three different clinical strains with high biofilm-forming ability. AgNPs reduced the biofilm-forming capacity of clinical A. baumannii isolate with strong biofilm-forming capacity by approximately twofold, while the capacity of clinical K.pneumonaie and E.coli isolates decreased by 1.5 and 1.2 fold, respectively. The α-glucosidase enzyme inhibition potential of the AgNPs, which is determined as 93.50%, was higher than the plant extract with, and the α- 30.37%. MTT was performed to assess whether incubation of nanoparticles with A549 and ARPE-19 cell lines affected their viability, and a dramatic reduction in cell growth inhibition of both A549 and ARPE-19 cells was observed. It has been shown that A549 cells treated with 200 and 150 µg/mL nanoparticles had less cell proliferation compared to control cells at 24-h and 48-h incubation time. According to these results, Ea-derived AgNPs appear to have potential anticancer activity against A549 cancer cells. Investigating the effects of green synthesis nanoparticles on microbial biofilm and various tumors may be important for developing new therapies. The outcomes of this study have showed that Ea-AgNPsmay have a high potential both in the treatment of pathogenic strains that form biofilms, as well as in anticancer therapy use.
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Affiliation(s)
- Zeynep Akar
- Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, 29100, Gümüşhane, Turkey
| | - Seref Akay
- Department of Genetics and Bioengineering, Faculty of Engineering, Alanya Alaaddin Keykubat University, Alanya/Antalya, Turkey
| | - Nebahat Ejder
- Department of Medical Microbiology, Faculty of Medicine, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Azer Özad Düzgün
- Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, 29100, Gümüşhane, Turkey.
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Akay S, Yüksel G, Özad Düzgün A. Investigation of Antibiofilm and Antibacterial Properties of Green Synthesized Silver Nanoparticles from Aqueous Extract of Rumex sp. Appl Biochem Biotechnol 2024; 196:1089-1103. [PMID: 37329410 DOI: 10.1007/s12010-023-04592-w] [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] [Accepted: 05/26/2023] [Indexed: 06/19/2023]
Abstract
The decrease in the effectiveness of conventional drugs as a result of the growth of resistance to antibiotics has increased the need for innovative tools to control the infections. At this point, metallic nanoparticles, in particular silver nanoparticles, have appeared as a promising method. In the current study, the extract of Rumex sp. (Labada, dock) leaves was used as a reducing agent for the formation of silver nanoparticles. Unlike similar studies, in this study the synthesis conditions were optimized by changing the extract ratio and silver nitrate concentration. Morphological investigations of synthesized silver nanoparticles showed that spherical homogeneous particles at size under 100 nm had been produced. SEM/EDS and FTIR analyses showed that plant components are involved in the synthesis of nanoparticles. It was also determined that higher extract ratio reduced nanoparticle size. The antimicrobial effects of the synthesized nanoparticles against Gram-positive and Gram-negative bacteria were tested, and it was determined that all nanoparticles exhibited activity against both groups. Rumex sp. silver nanoparticles (NPs) were revealed to exhibit antibiofilm activity against three different isolates with moderate and strong biofilm-forming ability. The NPs reduced the biofilm-forming capacity of Acinetobacter baumannii and Klebsiella pneumonaie by 2.66-fold and 3.25-fold, whereas they decreased the Escherichia coli biofilm-forming capacity by 1.25-fold. The investigation of microbial biofilm could play an important role in developing new strategies for treatment options. Our results suggest that Rumex sp. silver NPs may have a high potential for use in the treatment of pathogenic strains.
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Affiliation(s)
- Seref Akay
- Department of Genetics and Bioengineering, Faculty of Engineering, Alanya Alaaddin Keykubat University, Alanya, Antalya, Turkey
| | - Gamze Yüksel
- Department of Biotechnology, Institute of Graduate Education, Gumushane University, Gümüşhane, Turkey
| | - Azer Özad Düzgün
- Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, 29100, Gümüşhane, Turkey.
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Lethongkam S, Glaser J, Ammanath AV, Voravuthikunchai SP, Götz F. In vitro and in vivo comparative analysis of antibacterial activity of green-synthesized silver nanoparticles. Biotechnol J 2023; 18:e2300186. [PMID: 37555361 DOI: 10.1002/biot.202300186] [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: 04/28/2023] [Revised: 07/14/2023] [Accepted: 08/07/2023] [Indexed: 08/10/2023]
Abstract
This study aims to compare antibacterial effects of green-synthesized silver nanoparticles (AgNPs) with silver nitrate (AgNO3 ). AgNPs were successfully synthesized using Eucalyptus camaldulensis leaf extract as a reducing and stabilizing agent. Minimum inhibitory concentrations (MIC) of AgNPs and AgNO3 against Staphylococcus aureus and Pseudomonas aeruginosa ranged between 4.8 and 6.75 µg mL-1 . Growth curves demonstrated that inhibition of P. aeruginosa occurred right after AgNPs were added and throughout the period of the study (72 h). Antibacterial effects of both AgNPs and AgNO3 could be abrogated by cysteine and 2-mercaptoethanol, thiol-containing compounds. Galleria mellonella model revealed relatively low toxic effects of both AgNPs and AgNO3 . At 20MIC of AgNPs (≈137.8 mg kg-1 ), more than 80% survival of G. mellonella was observed. Unexpectedly, silver-containing agents could not rescue larvae after S. aureus infection. Further ex vivo experiments in the presence of coelomic larval fluid demonstrated the reduction of antibacterial activity of both AgNPs and AgNO3 . It was speculated that anionic molecules present in the coelomic fluid might neutralize the action of Ag ions. Binding of AgNPs or AgNO3 to albumin, a major protein in human blood which transport several endogenous compounds was not detected, indicating that the silver-containing agents could be applied as an antimicrobial agent.
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Affiliation(s)
- Sakkarin Lethongkam
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
- Microbial Genetics, Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, Tübingen, Germany
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Jochen Glaser
- Institut für Anorganische Chemie, University of Tübingen, Tübingen, Germany
| | - Aparna Viswanathan Ammanath
- Microbial Genetics, Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, Tübingen, Germany
| | - Supayang P Voravuthikunchai
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Friedrich Götz
- Microbial Genetics, Institute of Microbiology and Infection Medicine Tübingen, University of Tübingen, Tübingen, Germany
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Priyanto JA, Prastya ME, Astuti RI, Kristiana R. The Antibacterial and Antibiofilm Activities of the Endophytic Bacteria Associated with Archidendron pauciflorum against Multidrug-Resistant Strains. Appl Biochem Biotechnol 2023; 195:6653-6674. [PMID: 36913097 DOI: 10.1007/s12010-023-04382-4] [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] [Accepted: 02/16/2023] [Indexed: 03/14/2023]
Abstract
Endophytes associated with medicinal plants are a potential source of valuable natural products. This study aimed to evaluate the antibacterial and antibiofilm activities of endophytic bacteria from Archidendron pauciflorum against multidrug-resistant (MDR) strains. A total of 24 endophytic bacteria were isolated from the leaf, root, and stem of A. pauciflorum. Seven isolates showed antibacterial activity with different spectra against four MDR strains. Extracts derived from four selected isolates (1 mg/mL) also displayed antibacterial activity. Among four selected isolates, DJ4 and DJ9 isolates exhibited the strongest antibacterial activity against P. aeruginosa strain M18, as indicated by the lowest minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) (DJ4 and DJ9 MIC: 7.81 µg/mL; DJ4 and DJ9 MBC: 31.25 µg/mL). 2 × MIC of DJ4 and DJ9 extracts was found to be the most effective concentration to inhibit more than 52% of biofilm formation and eradicate more than 42% of established biofilm against all MDR strains. 16S rRNA-based identification revealed four selected isolates belong to the genus Bacillus. DJ9 isolate possessed nonribosomal peptide synthetase (NRPS) gene, and DJ4 isolate possessed NRPS and polyketide synthase type I (PKS I) gene. Both these genes are commonly responsible for secondary metabolites synthesis. Several antimicrobial compounds, including 1,4-dihydroxy-2-methyl-anthraquinone and paenilamicin A1, were detected in the bacterial extracts. This study highlights endophytic bacteria isolated from A. pauciflorum provide a great source of novel antibacterial compounds.
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Affiliation(s)
- Jepri Agung Priyanto
- Division of Microbiology, Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia.
| | - Muhammad Eka Prastya
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), Serpong, Indonesia
| | - Rika Indri Astuti
- Division of Microbiology, Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia
| | - Rhesi Kristiana
- Indonesian Marine Education and Research Organisation (MERO) Foundation, Br. Dinas Muntig, Bali, Indonesia
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Lethongkam S, Sunghan J, Wangdee C, Durongphongtorn S, Siri R, Wunnoo S, Paosen S, Voravuthikunchai SP, Dejyong K, Daengngam C. Biogenic nanosilver-fabricated endotracheal tube to prevent microbial colonization in a veterinary hospital. Appl Microbiol Biotechnol 2023; 107:623-638. [PMID: 36562803 PMCID: PMC9780629 DOI: 10.1007/s00253-022-12327-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 10/29/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022]
Abstract
COVID-19 patients have often required prolonged endotracheal intubation, increasing the risk of developing ventilator-associated pneumonia (VAP). A preventive strategy is proposed based on an endotracheal tube (ETT) modified by the in situ deposition of eucalyptus-mediated synthesized silver nanoparticles (AgNPs). The surfaces of the modified ETT were embedded with AgNPs of approximately 28 nm and presented a nanoscale roughness. Energy dispersive X-ray spectroscopy confirmed the presence of silver on and inside the coated ETT, which exhibited excellent antimicrobial activity against Gram-positive and Gram-negative bacteria, and fungi, including multidrug-resistant clinical isolates. Inhibition of planktonic growth and microbial adhesion ranged from 99 to 99.999% without cytotoxic effects on mammalian cells. Kinetic studies showed that microbial adhesion to the coated surface was inhibited within 2 h. Cell viability in biofilms supplemented with human tracheal mucus was reduced by up to 95%. In a porcine VAP model, the AgNPs-coated ETT prevented adhesion of Pseudomonas aeruginosa and completely inhibited bacterial invasion of lung tissue. The potential antimicrobial efficacy and safety of the coated ETT were established in a randomized control trial involving 47 veterinary patients. The microbial burden was significantly lower on the surface of the AgNPs-coated ETT than on the uncoated ETT (p < 0.05). KEY POINTS: • Endotracheal tube surfaces were modified by coating with green-synthesized AgNPs • P. aeruginosa burden of endotracheal tube and lung was reduced in a porcine model • Effective antimicrobial activity and safety was demonstrated in a clinical trial.
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Affiliation(s)
- Sakkarin Lethongkam
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Jutapoln Sunghan
- Faculty of Veterinary Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Chalika Wangdee
- Department of Veterinary Surgery, Faculty of Veterinary Science, Chulalongkorn University, Henri-dunant, Bangkok, 10330, Thailand
| | - Sumit Durongphongtorn
- Department of Veterinary Surgery, Faculty of Veterinary Science, Chulalongkorn University, Henri-dunant, Bangkok, 10330, Thailand
| | - Ratchaneewan Siri
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Suttiwan Wunnoo
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Supakit Paosen
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Supayang P Voravuthikunchai
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Krittee Dejyong
- Faculty of Veterinary Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
| | - Chalongrat Daengngam
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
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11
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Mutalik C, Lin IH, Krisnawati DI, Khaerunnisa S, Khafid M, Widodo, Hsiao YC, Kuo TR. Antibacterial Pathways in Transition Metal-Based Nanocomposites: A Mechanistic Overview. Int J Nanomedicine 2022; 17:6821-6842. [PMID: 36605560 PMCID: PMC9809169 DOI: 10.2147/ijn.s392081] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/22/2022] [Indexed: 01/01/2023] Open
Abstract
Across the planet, outbreaks of bacterial illnesses pose major health risks and raise concerns. Photodynamic, photothermal, and metal ion release effects of transition metal-based nanocomposites (TMNs) were recently shown to be highly effective in reducing bacterial resistance and upsurges in outbreaks. Surface plasmonic resonance, photonics, crystal structures, and optical properties of TMNs have been used to regulate metal ion release, produce oxidative stress, and generate heat for bactericidal applications. The superior properties of TMNs provide a chance to investigate and improve their antimicrobial actions, perhaps leading to therapeutic interventions. In this review, we discuss three alternative antibacterial strategies based on TMNs of photodynamic therapy, photothermal therapy, and metal ion release and their mechanistic actions. The scientific community has made significant efforts to address the safety, effectiveness, toxicity, and biocompatibility of these metallic nanostructures; significant achievements and trends have been highlighted in this review. The combination of therapies together has borne significant results to counter antimicrobial resistance (4-log reduction). These three antimicrobial pathways are separated into subcategories based on recent successes, highlighting potential needs and challenges in medical, environmental, and allied industries.
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Affiliation(s)
- Chinmaya Mutalik
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan,Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - I-Hsin Lin
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | | | - Siti Khaerunnisa
- Department of Physiology and Medical Biochemistry, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Muhamad Khafid
- Department of Nursing, Faculty of Nursing and Midwifery, Universitas Nahdlatul Ulama Surabaya, East Java, Indonesia
| | - Widodo
- College of Information System, Universitas Nusantara PGRI, Kediri, Indonesia
| | - Yu-Cheng Hsiao
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan,Graduate Institute of Biomedical Optomechatronics, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan,Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan,Stanford Byers Center for Biodesign, Stanford University, Stanford, CA, USA,Correspondence: Yu-Cheng Hsiao; Tsung-Rong Kuo, Tel +886-2-66382736 ext. 1359; +886-2-27361661 ext. 7706, Email ;
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan,Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
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12
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Wintachai P, Surachat K, Chaimaha G, Septama AW, Smith DR. Isolation and Characterization of a Phapecoctavirus Infecting Multidrug-Resistant Acinetobacter baumannii in A549 Alveolar Epithelial Cells. Viruses 2022; 14:v14112561. [PMID: 36423170 PMCID: PMC9695679 DOI: 10.3390/v14112561] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Multidrug-resistant Acinetobacter baumannii (MDR A. baumannii) is an emerging pathogen in the ESKAPE group. The global burden of antimicrobial resistance has led to renewed interest in alternative antimicrobial treatment strategies, including phage therapy. This study isolated and characterized a phage vB_AbaM_ ABPW7 (vABPW7) specific to MDR A. baumannii. Morphological analysis showed that phage vABPW7 belongs to the Myoviridae family. Genome analysis showed that the phage DNA genome consists of 148,647 bp and that the phage is a member of the Phapecoctavirus genus of the order Caudovirales. A short latent period and a large burst size indicated that phage vABPW7 was a lytic phage that could potentially be used in phage therapy. Phage vABPW7 is a high-stability phage that has high lytic activity. Phage vABPW7 could effectively reduce biofilm formation and remove preformed biofilm. The utility of phage vABPW7 was investigated in a human A549 alveolar epithelial cell culture model. Phage vABPW7 was not cytotoxic to A549 cells, and the phage could significantly reduce planktonic MDR A. baumannii and MDR A. baumannii adhesion on A549 cells without cytotoxicity. This study suggests that phage vABPW7 has the potential to be developed further as a new antimicrobial agent against MDR A. baumannii.
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Affiliation(s)
- Phitchayapak Wintachai
- School of Science, Walailak University, Thasala, Nakhon Si Thammarat 80161, Thailand
- Functional Materials and Nanotechnology Center of Excellence, Walailak University, Thasala, Nakhon Si Thammarat 80161, Thailand
- Correspondence:
| | - Komwit Surachat
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Ganyalak Chaimaha
- School of Science, Walailak University, Thasala, Nakhon Si Thammarat 80161, Thailand
| | - Abdi Wira Septama
- Research Centre for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), South Tangerang 15314, Banten, Indonesia
| | - Duncan R. Smith
- Institute of Molecular Biosciences, Mahidol University, Phutthamonthon, Nakhon Pathom 73170, Thailand
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13
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Dolma KG, Khati R, Paul AK, Rahmatullah M, de Lourdes Pereira M, Wilairatana P, Khandelwal B, Gupta C, Gautam D, Gupta M, Goyal RK, Wiart C, Nissapatorn V. Virulence Characteristics and Emerging Therapies for Biofilm-Forming Acinetobacter baumannii: A Review. BIOLOGY 2022; 11:biology11091343. [PMID: 36138822 PMCID: PMC9495682 DOI: 10.3390/biology11091343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/04/2022] [Accepted: 09/08/2022] [Indexed: 11/20/2022]
Abstract
Simple Summary Acinetobacter baumannii (A. baumannii) is one of the ESKAPE organisms and has the competency to build biofilms. These biofilms account for the most nosocomial infections all over the world. This review reflects on the various physicochemical and environmental factors such as adhesion, pili expression, growth surfaces, drug-resistant genes, and virulence factors that profoundly affect its resistant forte. Emerging drug-resistant issues and limitations to newer drugs are other factors affecting the hospital environment. Here, we discuss newer and alternative methods that can significantly enhance the susceptibility to Acinetobacter spp. Many new antibiotics are under trials, such as GSK-3342830, The Cefiderocol (S-649266), Fimsbactin, and similar. On the other hand, we can also see the impact of traditional medicine and the secondary metabolites of these natural products’ application in searching for new treatments. The field of nanoparticles has demonstrated effective antimicrobial actions and has exhibited encouraging results in the field of nanomedicine. The use of various phages such as vWUPSU and phage ISTD as an alternative treatment for its specificity and effectiveness is being investigated. Cathelicidins obtained synthetically or from natural sources can effectively produce antimicrobial activity in the micromolar range. Radioimmunotherapy and photodynamic therapy have boundless prospects if explored as a therapeutic antimicrobial strategy. Abstract Acinetobacter species is one of the most prevailing nosocomial pathogens with a potent ability to develop antimicrobial resistance. It commonly causes infections where there is a prolonged utilization of medical devices such as CSF shunts, catheters, endotracheal tubes, and similar. There are several strains of Acinetobacter (A) species (spp), among which the majority are pathogenic to humans, but A. baumannii are entirely resistant to several clinically available antibiotics. The crucial mechanism that renders them a multidrug-resistant strain is their potent ability to synthesize biofilms. Biofilms provide ample opportunity for the microorganisms to withstand the harsh environment and further cause chronic infections. Several studies have enumerated multiple physiological and virulence factors responsible for the production and maintenance of biofilms. To further enhance our understanding of this pathogen, in this review, we discuss its taxonomy, pathogenesis, current treatment options, global resistance rates, mechanisms of its resistance against various groups of antimicrobials, and future therapeutics.
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Affiliation(s)
- Karma G. Dolma
- Department of Microbiology, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok 737102, Sikkim, India
| | - Rachana Khati
- Department of Microbiology, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok 737102, Sikkim, India
| | - Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Lalmatia, Dhaka 1207, Bangladesh
| | - Maria de Lourdes Pereira
- CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
- Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Correspondence: (P.W.); (V.N.)
| | - Bidita Khandelwal
- Department of Medicine, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok 737102, Sikkim, India
| | - Chamma Gupta
- Department of Biotechnology, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok 737102, Sikkim, India
| | - Deepan Gautam
- Department of Microbiology, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok 737102, Sikkim, India
| | - Madhu Gupta
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences and Research University, New Delhi 110017, India
| | - Ramesh K. Goyal
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences and Research University, New Delhi 110017, India
| | - Christophe Wiart
- Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences and World Union for Herbal Drug Discovery (WUHeDD), Walailak University, Nakhon Si Thammarat 80160, Thailand
- Correspondence: (P.W.); (V.N.)
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14
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Luzala MM, Muanga CK, Kyana J, Safari JB, Zola EN, Mbusa GV, Nuapia YB, Liesse JMI, Nkanga CI, Krause RWM, Balčiūnaitienė A, Memvanga PB. A Critical Review of the Antimicrobial and Antibiofilm Activities of Green-Synthesized Plant-Based Metallic Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1841. [PMID: 35683697 PMCID: PMC9182092 DOI: 10.3390/nano12111841] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 02/01/2023]
Abstract
Metallic nanoparticles (MNPs) produced by green synthesis using plant extracts have attracted huge interest in the scientific community due to their excellent antibacterial, antifungal and antibiofilm activities. To evaluate these pharmacological properties, several methods or protocols have been successfully developed and implemented. Although these protocols were mostly inspired by the guidelines from national and international regulatory bodies, they suffer from a glaring absence of standardization of the experimental conditions. This situation leads to a lack of reproducibility and comparability of data from different study settings. To minimize these problems, guidelines for the antimicrobial and antibiofilm evaluation of MNPs should be developed by specialists in the field. Being aware of the immensity of the workload and the efforts required to achieve this, we set out to undertake a meticulous literature review of different experimental protocols and laboratory conditions used for the antimicrobial and antibiofilm evaluation of MNPs that could be used as a basis for future guidelines. This review also brings together all the discrepancies resulting from the different experimental designs and emphasizes their impact on the biological activities as well as their interpretation. Finally, the paper proposes a general overview that requires extensive experimental investigations to set the stage for the future development of effective antimicrobial MNPs using green synthesis.
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Affiliation(s)
- Miryam M. Luzala
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Claude K. Muanga
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Joseph Kyana
- Department of Pharmacy, Faculty of Medecine and Pharmacy, University of Kisangani, Kisangani XI B.P. 2012, Democratic Republic of the Congo;
| | - Justin B. Safari
- Department of Pharmacy, Faculty of Pharmaceutical Sciences and Public Health, Official University of Bukavu, Bukavu B.P. 570, Democratic Republic of the Congo;
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Makhana 6140, South Africa
| | - Eunice N. Zola
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Grégoire V. Mbusa
- Centre Universitaire de Référence de Surveillance de la Résistance aux Antimicrobiens (CURS-RAM), Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (G.V.M.); (J.-M.I.L.)
- Laboratory of Experimental and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo
| | - Yannick B. Nuapia
- Laboratory of Toxicology, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo;
| | - Jean-Marie I. Liesse
- Centre Universitaire de Référence de Surveillance de la Résistance aux Antimicrobiens (CURS-RAM), Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (G.V.M.); (J.-M.I.L.)
- Laboratory of Experimental and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo
| | - Christian I. Nkanga
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Rui W. M. Krause
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Makhana 6140, South Africa
- Center for Chemico- and Bio-Medicinal Research (CCBR), Faculty of Science, Rhodes University, P.O. Box 94, Makhana 6140, South Africa
| | - Aistė Balčiūnaitienė
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, 54333 Babtai, Lithuania;
| | - Patrick B. Memvanga
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
- Department of Pharmacy, Faculty of Medecine and Pharmacy, University of Kisangani, Kisangani XI B.P. 2012, Democratic Republic of the Congo;
- Department of Pharmacy, Faculty of Pharmaceutical Sciences and Public Health, Official University of Bukavu, Bukavu B.P. 570, Democratic Republic of the Congo;
- Centre de Recherche et d’Innovation Technologique en Environnement et en Sciences de la Santé (CRITESS), University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo
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15
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Wintachai P, Voravuthikunchai SP. Characterization of Novel Lytic Myoviridae Phage Infecting Multidrug-Resistant Acinetobacter baumannii and Synergistic Antimicrobial Efficacy between Phage and Sacha Inchi Oil. Pharmaceuticals (Basel) 2022; 15:291. [PMID: 35337089 PMCID: PMC8949666 DOI: 10.3390/ph15030291] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/19/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022] Open
Abstract
Multidrug-resistant (MDR) strains of Acinetobacter baumannii have become a major cause of hospital-acquired infections, resulting in an increase in morbidity and mortality worldwide. Many alternative treatments, including phage therapy, are attractive approaches for overcoming problems posed by antibiotic resistance. A newly isolated phage, vWUPSU-specific MDR A. baumannii, showed a narrow host range against MDR A. baumannii. This research was conducted to isolate, characterize, and apply the phage with sacha inchi oil as an alternative antimicrobial agent. Genome analysis suggested that phage vWUPSU is a novel phage belonging to the family Myoviridae, order Caudoviridae. This phage prevented biofilm formation and eradicated preformed biofilms in a dose-dependent manner. In addition, a synergistic antimicrobial effect of the interaction between phage vWUPSU and sacha inchi oil on planktonic cells was observed. The combination of phage and sacha inchi oil significantly inhibited and removed biofilms, compared with the effects of either single treatment. The results of this work indicate that phage vWUPSU could potentially be applied to control MDR A. baumannii. The antibacterial and antibiofilm activities of the combination of phage vWUPSU and sacha inchi oil have attracted significant interests in the development of antibacterial phage products as beneficial treatment options.
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Affiliation(s)
| | - Supayang Piyawan Voravuthikunchai
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia and Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand;
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16
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Ghosh S, Nandi S, Basu T. Nano-Antibacterials Using Medicinal Plant Components: An Overview. Front Microbiol 2022; 12:768739. [PMID: 35273578 PMCID: PMC8902597 DOI: 10.3389/fmicb.2021.768739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Abstract
Gradual emergence of new bacterial strains, resistant to one or more antibiotics, necessitates development of new antibacterials to prevent us from newly evolved disease-causing, drug-resistant, pathogenic bacteria. Different inorganic and organic compounds have been synthesized as antibacterials, but with the problem of toxicity. Other alternatives of using green products, i.e., the medicinal plant extracts with biocompatible and potent antibacterial characteristics, also had limitation because of their low aqueous solubility and therefore less bioavailability. Use of nanotechnological strategy appears to be a savior, where phytochemicals are nanonized through encapsulation or entrapment within inorganic or organic hydrophilic capping agents. Nanonization of such products not only makes them water soluble but also helps to attain high surface to volume ratio and therefore high reaction area of the nanonized products with better therapeutic potential, over that of the equivalent amount of raw bulk products. Medicinal plant extracts, whose prime components are flavonoids, alkaloids, terpenoids, polyphenolic compounds, and essential oils, are in one hand nanonized (capped and stabilized) by polymers, lipids, or clay materials for developing nanodrugs; on the other hand, high antioxidant activity of those plant extracts is also used to reduce various metal salts to produce metallic nanoparticles. In this review, five medicinal plants, viz., tulsi (Ocimum sanctum), turmeric (Curcuma longa), aloe vera (Aloe vera), oregano (Oregano vulgare), and eucalyptus (Eucalyptus globulus), with promising antibacterial potential and the nanoformulations associated with the plants' crude extracts and their respective major components (eugenol, curcumin, anthraquinone, carvacrol, eucalyptus oil) have been discussed with respect to their antibacterial potency.
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Affiliation(s)
| | | | - Tarakdas Basu
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, India
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17
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Wintachai P, Phaonakrop N, Roytrakul S, Naknaen A, Pomwised R, Voravuthikunchai SP, Surachat K, Smith DR. Enhanced antibacterial effect of a novel Friunavirus phage vWU2001 in combination with colistin against carbapenem-resistant Acinetobacter baumannii. Sci Rep 2022; 12:2633. [PMID: 35173237 PMCID: PMC8850435 DOI: 10.1038/s41598-022-06582-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 02/02/2022] [Indexed: 12/16/2022] Open
Abstract
The emergence of carbapenem-resistant Acinetobacter baumannii (CRAB) has been increasingly reported, leading to greater challenges in treating infections. With the development of phage therapy and phage-antibiotic combinations, it is promising to improve the treatment of bacterial infections. In the present study, a novel vB_AbaP_WU2001 (vWU2001) phage-specific CRAB with a genome of 40,792 bp was isolated. Genomic analysis disclosed that it belongs to the Autographiviridae family of the order Caudovirales. Phage vWU2001 had a broad host range with a high adsorption rate, short latent period, large burst size and good stability. The phage could reduce preformed biofilms and inhibit biofilm formation. The combination of phage vWU2001 and colistin had significantly higher bacterial growth inhibition activity than that of phage, or colistin alone. The efficacy of the combined treatment was also evaluated in Galleria mellonella. Evaluation of its therapeutic potential showed that the combination of phage and colistin resulted in a significantly greater increase in G. mellonella survival and in bacterial clearance, as compared with that of phage or colistin alone, indicating that the combination was synergistic against CRAB. The results demonstrated that phage vWU2001 has the potential to be developed as an antibacterial agent.
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Affiliation(s)
| | - Narumon Phaonakrop
- Functional Proteomics Technology Laboratory, Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Sittiruk Roytrakul
- Functional Proteomics Technology Laboratory, Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Ampapan Naknaen
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Rattanaruji Pomwised
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Supayang Piyawan Voravuthikunchai
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.,Center of Antimicrobial Biomaterial Innovation-Southeast Asia and Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Komwit Surachat
- Molecular Evolution and Computational Biology Research Unit, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Duncan R Smith
- Institute of Molecular Biosciences, Mahidol University, Phuttamonthon, Nakhon Pathom, 73170, Thailand
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Rosyidah A, Weeranantanapan O, Chudapongse N, Limphirat W, Nantapong N. Streptomyces chiangmaiensis SSUT88A mediated green synthesis of silver nanoparticles: characterization and evaluation of antibacterial action against clinical drug-resistant strains. RSC Adv 2022; 12:4336-4345. [PMID: 35425449 PMCID: PMC8981172 DOI: 10.1039/d1ra08238h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/22/2022] [Indexed: 01/28/2023] Open
Abstract
This study involved the characterization of AgNPs synthesized from soil isolate Streptomyces sp. SSUT88A and their antimicrobial activities. The strain SSUT88A revealed 98.8% similarity of the 16s rRNA gene to Streptomyces chiangmaiensis TA4-1T. The AgNPs were synthesized by mixing either intracellular or extracellular cell-free supernatant of strain SSUT88A with AgNO3. The synthesized AgNPs from intracellular cell-free supernatant and extracellular cell-free supernatant were designated as IS-AgNPs and ES-AgNPs, respectively. The IS-AgNPs showed maximum absorbance of UV-vis spectra at 418 nm, while ES-AgNPs revealed maximum absorbance at 422 nm. The TEM observation of synthesized AgNPs revealed a spherical shape with an average diameter of 13.57 nm for IS-AgNPs and 30.47 nm for ES-AgNPs. The XRD and XANES spectrum profile of both synthesized AgNPs exhibited similar spectrum energy, which corresponded to AgNPs. The IS-AgNPs revealed antimicrobial activity against clinical isolate drug-resistant bacteria (Acinetobacter baumannii, Escherichia coli 8465, Klebsiella pneumoniae 1617, and Pseudomonas aeruginosa N90PS), while ES-AgNPs had no antimicrobial activity. When compared to commercial AgNPs, IS-AgNPs exhibited antibacterial efficacy against all clinical isolate bacteria including A. baumannii, one of the most threatening multi-drug resistant strains, while commercial AgNPs did not. Thus, IS-AgNPs has potential to be further developed as an antimicrobial agent against drug-resistant bacteria.
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Affiliation(s)
- A'liyatur Rosyidah
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
- Research Center for Biology, National Research and Innovation Agency (BRIN) West Java 16911 Indonesia
| | - Oratai Weeranantanapan
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
- Center of Excellence on Advanced Functional Materials, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
| | - Nuannoi Chudapongse
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
- Center of Excellence on Advanced Functional Materials, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
| | - Wanwisa Limphirat
- Synchrotron Light Research Institute (SLRI) Nakhon Ratchasima 30000 Thailand
| | - Nawarat Nantapong
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
- Center of Excellence on Advanced Functional Materials, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
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Isolation and Characterization of a Novel Autographiviridae Phage and Its Combined Effect with Tigecycline in Controlling Multidrug-Resistant Acinetobacter baumannii-Associated Skin and Soft Tissue Infections. Viruses 2022; 14:v14020194. [PMID: 35215788 PMCID: PMC8878389 DOI: 10.3390/v14020194] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 12/24/2022] Open
Abstract
Multidrug-resistant Acinetobacter baumannii (MDR A. baumannii) is one of the ESKAPE pathogens that restricts available treatment options. MDR A. baumannii is responsible for a dramatic increase in case numbers of a wide variety of infections, including skin and soft tissue infections (SSTIs), resulting in pyoderma, surgical debridement, and necrotizing fasciitis. To investigate an alternative medical treatment for SSTIs, a broad range lytic Acinetobacter phage, vB _AbP_ABWU2101 (phage vABWU2101), for lysing MDR A. baumannii in associated SSTIs was isolated and the biological aspects of this phage were investigated. Morphological characterization and genomic analysis revealed that phage vABWU2101 was a new species in the Friunavirus, Beijerinckvirinae, family Autographiviridae, and order Caudovirales. Antibiofilm activity of phage vABWU2101 demonstrated good activity against both preformed biofilms and biofilm formation. The combination of phage vABWU2101 and tigecycline showed synergistic antimicrobial activities against planktonic and biofilm cells. Scanning electron microscopy confirmed that the antibacterial efficacy of the combination of phage vABWU2101 and tigecycline was more effective than the phage or antibiotic alone. Hence, our findings could potentially be used to develop a therapeutic option for the treatment of SSTIs caused by MDR A. baumannii.
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Rossos AK, Banti CN, Raptis PK, Papachristodoulou C, Sainis I, Zoumpoulakis P, Mavromoustakos T, Hadjikakou SK. Silver Nanoparticles Using Eucalyptus or Willow Extracts (AgNPs) as Contact Lens Hydrogel Components to Reduce the Risk of Microbial Infection. Molecules 2021; 26:5022. [PMID: 34443612 PMCID: PMC8400931 DOI: 10.3390/molecules26165022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/15/2021] [Accepted: 08/16/2021] [Indexed: 12/31/2022] Open
Abstract
Eucalyptus leaves (ELE) and willow bark (WBE) extracts were utilized towards the formation of silver nanoparticles (AgNPs(ELE), AgNPs(WBE)). AgNPs(ELE) and AgNPs(WBE) were dispersed in polymer hydrogels to create pHEMA@AgNPs(ELE)_2 and pHEMA@AgNPs(WBE)_2 using hydroxyethyl-methacrylate (HEMA). The materials were characterized in a solid state by X-ray fluorescence (XRF) spectroscopy, X-ray powder diffraction analysis (XRPD), thermogravimetric differential thermal analysis (TG-DTA), differential scanning calorimetry (DTG/DSC) and attenuated total reflection spectroscopy (ATR-FTIR) and ultraviolet visible (UV-vis) spectroscopy in solution. The antimicrobial potential of the materials was investigated against the Gram-negative bacterial strain Pseudomonas aeruginosa (P. aeruginosa) and the Gram-positive bacterial strain of the genus Staphylococcus epidermidis (S. epidermidis) and Staphylococcus aureus (S. aureus), which are involved in microbial keratitis. The percentage of bacterial viability of P. aeruginosa and S. epidermidis upon their incubation over the pHEMA@AgNPs(ELE)_2 discs is interestingly low (28.3 and 6.8% respectively), while the inhibition zones (IZ) formed are 12.3 ± 1.7 and 13.2 ± 1.2 mm, respectively. No in vitro toxicity of this material towards human corneal epithelial cells (HCEC) was detected. Despite its low performance against S. aureus, pHEMA@AgNPs(ELE)_2 could be an efficient candidate towards the development of contact lenses that reduces microbial infection risk.
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Affiliation(s)
- Andreas K. Rossos
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (A.K.R.); (P.K.R.)
| | - Christina N. Banti
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (A.K.R.); (P.K.R.)
| | - Panagiotis K. Raptis
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (A.K.R.); (P.K.R.)
| | | | - Ioannis Sainis
- Cancer Biobank Center, University of Ioannina, 45110 Ioannina, Greece;
| | - Panagiotis Zoumpoulakis
- Laboratory of Chemistry, Analysis and Design of Food Processes, Department of Food Science and Technology, University of West Attica, 12243 Attica, Greece;
| | - Thomas Mavromoustakos
- Organic Chemistry Laboratory, Department of Chemistry, University of Athens Greece, 15571 Athens, Greece;
| | - Sotiris K. Hadjikakou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (A.K.R.); (P.K.R.)
- University Research Center of Ioannina (URCI), Institute of Materials Science and Computing, 45110 Ioannina, Greece
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Huang J, Guo J, Zou X, Zhu J, Wu S, Zhang T. Bioinspired Heteromultivalent Chitosan- α-Fe₂O₃/Gadofullerene Hybrid Composite for Enhanced Antibiotic-Resistant Bacterial Pneumonia. J Biomed Nanotechnol 2021; 17:1217-1228. [PMID: 34167634 DOI: 10.1166/jbn.2021.3093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Herein, we have designed and developed a heteromultivalent chitosan base α-Fe₂O₃/Gadofullerene (GdF) hybrid composite through a simple chemical precipitation method. Unlike other methods, the addition of external stabilizing agents to generate GdF nanoparticles (NPs) was not necessary herein. The prepared chitosan-α-Fe₂O₃/GdF hybrid nanocomposites were characterized using UV, FT-IR, XRD and morphological microscopic analyses. The results showed that α-Fe₂O₃ and GdF hybrid nanocomposites were successfully grown on the surface of chitosan. The FT-IR vibration peaks showed the formation of Fe₂O₃ NPs, and the vibration peak for Fe-O was 568 cm-1. The broad absorption peak observed in the range of 250-350 nm and a sharp absorption peak at 219 nm represents the UV absorption of the synthesized hybrid composites. XRD pattern showed sharp peaks of crystallinity and purity of α-Fe₂O₃ nanoparticles. Finally, the synthesized chitosan-α-Fe₂O₃/GdF hybrid composites were screened for their antibacterial resistance against the Escherichia coli, Pseudomonas aeruginosa, Bacilus subtilis, and Staphylococcus aereus. In addition, in vitro biocompatibility results exhibited that developed hybrid samples have provided high cell compatibility with fibroblast (L929) cell line. The in vivo bio inspired nanotherapeutics have the potential action to effective inhibition ability on antibiotic-resistant P. aeruginosa, which has been main factor of inducing pneumonia. In conclusion, we expect biomimicking systems combined with the effective antibacterial agent could be the suitable next generation therapeutic potential factors for prevention and treatment of antibiotic-resistant pneumonia.
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Affiliation(s)
- Jing Huang
- Department of Pulmonary and Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, and Institute of Respiratory Diseases, Guangzhou 510000, PR China
| | - Jiquan Guo
- Department of Pulmonary and Critical Care Medicine, Guangdon Provincial Peoples Hospital/Guangdon Academy of Medical Sciences/Guangdon Provincial Geriatrics Institute, Guangzhou 510000, PR China
| | - Xiaoling Zou
- Department of Pulmonary and Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, and Institute of Respiratory Diseases, Guangzhou 510000, PR China
| | - Jiaxin Zhu
- Department of Pulmonary and Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, and Institute of Respiratory Diseases, Guangzhou 510000, PR China
| | - Shaozhu Wu
- Department of Pulmonary and Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, and Institute of Respiratory Diseases, Guangzhou 510000, PR China
| | - Tiantuo Zhang
- Department of Pulmonary and Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, and Institute of Respiratory Diseases, Guangzhou 510000, PR China
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22
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Barabadi H, Mohammadzadeh A, Vahidi H, Rashedi M, Saravanan M, Talank N, Alizadeh A. Penicillium chrysogenum-Derived Silver Nanoparticles: Exploration of Their Antibacterial and Biofilm Inhibitory Activity Against the Standard and Pathogenic Acinetobacter baumannii Compared to Tetracycline. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02121-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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23
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Paosen S, Lethongkam S, Wunnoo S, Lehman N, Kalkornsurapranee E, Septama AW, Voravuthikunchai SP. Prevention of nosocomial transmission and biofilm formation on novel biocompatible antimicrobial gloves impregnated with biosynthesized silver nanoparticles synthesized using Eucalyptus citriodora leaf extract. Biotechnol J 2021; 16:e2100030. [PMID: 34102004 DOI: 10.1002/biot.202100030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 12/23/2022]
Abstract
Failure in the prevention of cross-transmission from contaminated gloves has been recognized as an important factor that contributes to the spread of several healthcare-associated infections. Ex situ coating process with silver nanoparticles (AgNPs) using Eucalyptus citriodora ethanolic leaf extract as reducing and capping agents to coat glove surfaces has been developed to prevent this mode of transmission. Elemental analysis of coated gloves showed 24.8 Wt% silver densely adhere on the surface. The coated gloves fully eradicated important hospital-acquired pathogens including Gram-positive bacteria, Gram-negative bacteria, and yeasts within 1 h. The coated gloves showed significant reduction, an average of five logs when tested against all standard strains and most clinical isolates (p < 0.01). Following prolonged exposure, the coating significantly reduced the numbers of most adhered pathogenic species, compared with uncoated gloves (p < 0.0001). AgNPs-coated gloves reduced microbial adhesion of mixed-species biofilms. A series of contamination and transmission assays demonstrated no transmission of viable organisms. Biocompatibility analysis confirmed high viability of HaCaT and L929 cells at all concentrations of AgNPs tested. The coated gloves were non-toxic with direct contact with L929 cells. The highly efficacious AgNPs-coated gloves potentially provide additional protection against transmission of healthcare-associated infections.
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Affiliation(s)
- Supakit Paosen
- Division of Biological Science, Faculty of Science I Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Songkhla, Thailand
| | - Sakkarin Lethongkam
- Division of Biological Science, Faculty of Science I Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Songkhla, Thailand
| | - Suttiwan Wunnoo
- Division of Biological Science, Faculty of Science I Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Songkhla, Thailand
| | - Nussana Lehman
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | | | - Abdi Wira Septama
- Research Center for Chemistry, Kawasan Puspitek Serpong, Indonesian Institute of Sciences, Tangerang Selatan, Indonesia
| | - Supayang Piyawan Voravuthikunchai
- Division of Biological Science, Faculty of Science I Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Songkhla, Thailand
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Polyethylene Glycol Functionalized Graphene Oxide Nanoparticles Loaded with Nigella sativa Extract: A Smart Antibacterial Therapeutic Drug Delivery System. Molecules 2021; 26:molecules26113067. [PMID: 34063773 PMCID: PMC8196615 DOI: 10.3390/molecules26113067] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/11/2021] [Accepted: 05/15/2021] [Indexed: 12/11/2022] Open
Abstract
Flaky graphene oxide (GO) nanoparticles (NPs) were synthesized using Hummer’s method and then capped with polyethylene glycol (PEG) by an esterification reaction, then loaded with Nigella sativa (N. sativa) seed extract. Aiming to investigate their potential use as a smart drug delivery system against Staphylococcus aureus and Escherichia coli, the spectral and structural characteristics of GO-PEG NPs were comprehensively analyzed by XRD, AFM, TEM, FTIR, and UV- Vis. XRD patterns revealed that GO-PEG had different crystalline structures and defects, as well as a higher interlayer spacing. AFM results showed GONPs with the main grain size of 24.41 nm, while GONPs–PEG revealed graphene oxide aggregation with the main grain size of 287.04 nm after loading N. sativa seed extract, which was verified by TEM examination. A strong OH bond appeared in FTIR spectra. Furthermore, UV- Vis absorbance peaks at (275, 284, 324, and 327) nm seemed to be correlated with GONPs, GO–PEG, N. sativa seed extract, and GO –PEG- N. sativa extract. The drug delivery system was observed to destroy the bacteria by permeating the bacterial nucleic acid and cytoplasmic membrane, resulting in the loss of cell wall integrity, nucleic acid damage, and increased cell-wall permeability.
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Toward a Better Understanding of Metal Nanoparticles, a Novel Strategy from Eucalyptus Plants. PLANTS 2021; 10:plants10050929. [PMID: 34066925 PMCID: PMC8148548 DOI: 10.3390/plants10050929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/28/2021] [Accepted: 04/02/2021] [Indexed: 12/13/2022]
Abstract
Nanotechnology is a promising tool that has opened the doors of improvement to the quality of human's lives through its potential in numerous technological aspects. Green chemistry of nanoscale materials (1-100 nm) is as an effective and sustainable strategy to manufacture homogeneous nanoparticles (NPs) with unique properties, thus making the synthesis of green NPs, especially metal nanoparticles (MNPs), the scientist's core theme. Researchers have tested different organisms to manufacture MNPs and the results of experiments confirmed that plants tend to be the ideal candidate amongst all entities and are suitable to synthesize a wide variety of MNPs. Natural and cultivated Eucalyptus forests are among woody plants used for landscape beautification and as forest products. The present review has been written to reflect the efficacious role of Eucalyptus in the synthesis of MNPs. To better understand this, the route of extracting MNPs from plants, in general, and Eucalyptus, in particular, are discussed. Furthermore, the crucial factors influencing the process of MNP synthesis from Eucalyptus as well as their characterization and recent applications are highlighted. Information gathered in this review is useful to build a basis for new prospective research ideas on how to exploit this woody species in the production of MNPs. Nevertheless, there is a necessity to feed the scientific field with further investigations on wider applications of Eucalyptus-derived MNPs.
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26
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Bamunuarachchi NI, Khan F, Kim YM. Inhibition of Virulence Factors and Biofilm Formation of Acinetobacter Baumannii by Naturally-derived and Synthetic Drugs. Curr Drug Targets 2021; 22:734-759. [PMID: 33100201 DOI: 10.2174/1389450121666201023122355] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 11/22/2022]
Abstract
Acinetobacter baumannii is a gram-negative, aerobic, non-motile, and pleomorphic bacillus. A. baumannii is also a highly-infectious pathogen causing high mortality and morbidity rates in intensive care units. The discovery of novel agents against A. baumannii infections is urgently needed due to the emergence of drug-resistant A. baumannii strains and the limited number of efficacious antibiotics available for treatment. In addition to the production of several virulence factors, A. baumannii forms biofilms on the host cell surface as well. Formation of biofilms occurs through initial surface attachment, microcolony formation, biofilm maturation, and detachment stages, and is one of the major drug resistance mechanisms employed by A. baumannii. Several studies have previously reported the efficacy of naturally-derived and synthetic compounds as anti- biofilm and anti-virulence agents against A. baumannii. Here, inhibition of biofilm formation and virulence factors of A. baumannii using naturally-derived and synthetic compounds are reviewed.
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Affiliation(s)
| | - Fazlurrahman Khan
- Institute of Food Science, Pukyong National University, Busan 48513, South Korea
| | - Young-Mog Kim
- Department of Food Science and Technology, Pukyong National University, Busan 48513, South Korea
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McNeilly O, Mann R, Hamidian M, Gunawan C. Emerging Concern for Silver Nanoparticle Resistance in Acinetobacter baumannii and Other Bacteria. Front Microbiol 2021; 12:652863. [PMID: 33936010 PMCID: PMC8085274 DOI: 10.3389/fmicb.2021.652863] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
The misuse of antibiotics combined with a lack of newly developed ones is the main contributors to the current antibiotic resistance crisis. There is a dire need for new and alternative antibacterial options and nanotechnology could be a solution. Metal-based nanoparticles, particularly silver nanoparticles (NAg), have garnered widespread popularity due to their unique physicochemical properties and broad-spectrum antibacterial activity. Consequently, NAg has seen extensive incorporation in many types of products across the healthcare and consumer market. Despite clear evidence of the strong antibacterial efficacy of NAg, studies have raised concerns over the development of silver-resistant bacteria. Resistance to cationic silver (Ag+) has been recognised for many years, but it has recently been found that bacterial resistance to NAg is also possible. It is also understood that exposure of bacteria to toxic heavy metals like silver can induce the emergence of antibiotic resistance through the process of co-selection. Acinetobacter baumannii is a Gram-negative coccobacillus and opportunistic nosocomial bacterial pathogen. It was recently listed as the "number one" critical level priority pathogen because of the significant rise of antibiotic resistance in this species. NAg has proven bactericidal activity towards A. baumannii, even against strains that display multi-drug resistance. However, despite ample evidence of heavy metal (including silver; Ag+) resistance in this bacterium, combined with reports of heavy metal-driven co-selection of antibiotic resistance, little research has been dedicated to assessing the potential for NAg resistance development in A. baumannii. This is worrisome, as the increasingly indiscriminate use of NAg could promote the development of silver resistance in this species, like what has occurred with antibiotics.
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Affiliation(s)
- Oliver McNeilly
- iThree Institute, University of Technology Sydney, Ultimo, NSW, Australia
| | - Riti Mann
- iThree Institute, University of Technology Sydney, Ultimo, NSW, Australia
| | - Mohammad Hamidian
- iThree Institute, University of Technology Sydney, Ultimo, NSW, Australia
| | - Cindy Gunawan
- iThree Institute, University of Technology Sydney, Ultimo, NSW, Australia
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, Australia
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Rónavári A, Igaz N, Adamecz DI, Szerencsés B, Molnar C, Kónya Z, Pfeiffer I, Kiricsi M. Green Silver and Gold Nanoparticles: Biological Synthesis Approaches and Potentials for Biomedical Applications. Molecules 2021; 26:844. [PMID: 33562781 PMCID: PMC7915205 DOI: 10.3390/molecules26040844] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 02/07/2023] Open
Abstract
The nanomaterial industry generates gigantic quantities of metal-based nanomaterials for various technological and biomedical applications; however, concomitantly, it places a massive burden on the environment by utilizing toxic chemicals for the production process and leaving hazardous waste materials behind. Moreover, the employed, often unpleasant chemicals can affect the biocompatibility of the generated particles and severely restrict their application possibilities. On these grounds, green synthetic approaches have emerged, offering eco-friendly, sustainable, nature-derived alternative production methods, thus attenuating the ecological footprint of the nanomaterial industry. In the last decade, a plethora of biological materials has been tested to probe their suitability for nanomaterial synthesis. Although most of these approaches were successful, a large body of evidence indicates that the green material or entity used for the production would substantially define the physical and chemical properties and as a consequence, the biological activities of the obtained nanomaterials. The present review provides a comprehensive collection of the most recent green methodologies, surveys the major nanoparticle characterization techniques and screens the effects triggered by the obtained nanomaterials in various living systems to give an impression on the biomedical potential of green synthesized silver and gold nanoparticles.
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Affiliation(s)
- Andrea Rónavári
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., H-6720 Szeged, Hungary; (A.R.); (Z.K.)
| | - Nóra Igaz
- Department of Biochemistry and Molecular Biology and Doctoral School of Biology, University of Szeged, Közép fasor 52., H-6726 Szeged, Hungary; (N.I.); (D.I.A.)
| | - Dóra I. Adamecz
- Department of Biochemistry and Molecular Biology and Doctoral School of Biology, University of Szeged, Közép fasor 52., H-6726 Szeged, Hungary; (N.I.); (D.I.A.)
| | - Bettina Szerencsés
- Department of Microbiology and Doctoral School of Biology, University of Szeged, Közép fasor 52., H-6726 Szeged, Hungary; (B.S.); (I.P.)
| | - Csaba Molnar
- Broad Institute of MIT and Harvard, Cambridge, 415 Main St, Cambridge, MA 02142, USA;
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., H-6720 Szeged, Hungary; (A.R.); (Z.K.)
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1., H-6720 Szeged, Hungary
| | - Ilona Pfeiffer
- Department of Microbiology and Doctoral School of Biology, University of Szeged, Közép fasor 52., H-6726 Szeged, Hungary; (B.S.); (I.P.)
| | - Monika Kiricsi
- Department of Biochemistry and Molecular Biology and Doctoral School of Biology, University of Szeged, Közép fasor 52., H-6726 Szeged, Hungary; (N.I.); (D.I.A.)
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Wintachai P, Naknaen A, Thammaphet J, Pomwised R, Phaonakrop N, Roytrakul S, Smith DR. Characterization of extended-spectrum-β-lactamase producing Klebsiella pneumoniae phage KP1801 and evaluation of therapeutic efficacy in vitro and in vivo. Sci Rep 2020; 10:11803. [PMID: 32678251 PMCID: PMC7367294 DOI: 10.1038/s41598-020-68702-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022] Open
Abstract
Extended spectrum β lactamase-producing Klebsiella pneumoniae (ESBL-KP) is being reported with high morbidity and mortality rates and is considered as the highest priority for new antimicrobial strategies. To develop an alternative antimicrobial agent, phage KP1801 with broad lytic activity was isolated. The genome of phage KP1801 was double stranded DNA of 49,835 base pairs, with a GC content of 50.26%. There were 75 putative open reading frames. Phage KP1801 was classified as being in the order Caudovirales, belonging to the Siphoviridae family. About 323 proteins were detected by shotgun proteome analysis. The phage inhibited biofilm formation and reduced pre-formed biofilm in a dose dependent manner. Scanning electron microscopic studies demonstrated a membrane damage of bacterial cells treated with phage, resulting in cell death. Prophylactic and therapeutic efficacies of the phage were evaluated in Galleria mellonella. Administration of ESBL-KP infection with phage significantly improved the survival of G. mellonella. The number of intracellular bacteria in larvae showed a significant decrease compared with untreated control while the number of phage increased. These studies suggested that phage KP1801 has the potential for development as an alternative for antibiotics and biocontrol agents against ESBL-KP infection.
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Affiliation(s)
| | - Ampapan Naknaen
- Department of Microbiology, Prince of Songkla University, Songkhla, 90112, Thailand
| | - Jirapath Thammaphet
- School of Science, Walailak University, Nakhon Si Thammarat, 80161, Thailand
| | - Rattanaruji Pomwised
- Department of Microbiology, Prince of Songkla University, Songkhla, 90112, Thailand
| | - Narumon Phaonakrop
- Proteomics Research Laboratory, Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Sittiruk Roytrakul
- Proteomics Research Laboratory, Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Duncan R Smith
- Institute of Molecular Biosciences, Mahidol University, Bangkok, 73170, Thailand
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Lethongkam S, Daengngam C, Tansakul C, Siri R, Chumpraman A, Phengmak M, Voravuthikunchai SP. Prolonged inhibitory effects against planktonic growth, adherence, and biofilm formation of pathogens causing ventilator-associated pneumonia using a novel polyamide/silver nanoparticle composite-coated endotracheal tube. BIOFOULING 2020; 36:292-307. [PMID: 32367731 DOI: 10.1080/08927014.2020.1759041] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/15/2020] [Accepted: 04/19/2020] [Indexed: 06/11/2023]
Abstract
Microbial cells can rapidly form biofilm on endotracheal tubes (ETT) causing ventilator-associated pneumonia, a serious complication in patients receiving mechanical ventilation. A novel polyamide with a good balance of hydrophilic/hydrophobic moieties was used for the embedment of green-reduction silver nanoparticles (AgNPs) for the composite-coated ETT. The films were conformal with a thickness of ∼ 17 ± 3 µm accommodating high loading of 60 ± 35 nm spherical-shaped AgNPs. The coated ETT resulted in a significant difference in reducing both planktonic growth and microbial adhesion of single and mixed-species cultures, compared with uncoated ETT (p < 0.05). A time-kill assay demonstrated rapid bactericidal effects of the coating on bacterial growth and cell adhesion to ETT surface. Biofilm formation by Pseudomonas aeruginosa and Staphylococcus aureus, commonly encountered pathogens, was inhibited by > 96% after incubation for 72 h. Polyamide/AgNP composite-coated ETT provided a broad-spectrum activity against both Gram-positive and Gram-negative bacteria as well as Candida albicans and prolonged antimicrobial activity.
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Affiliation(s)
- Sakkarin Lethongkam
- Department of Microbiology, Faculty of Science and Natural Product Research Center of Excellence, Excellence Research Laboratory on Natural Products, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Chalongrat Daengngam
- Department of Physics, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Chittreeya Tansakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Ratchaneewan Siri
- Department of Physics, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Apisit Chumpraman
- Department of Microbiology, Faculty of Science and Natural Product Research Center of Excellence, Excellence Research Laboratory on Natural Products, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Manthana Phengmak
- Department of Pathology, Faculty of Medicine, Clinical Microbiology Unit, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Supayang P Voravuthikunchai
- Department of Microbiology, Faculty of Science and Natural Product Research Center of Excellence, Excellence Research Laboratory on Natural Products, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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In-Vitro Antibacterial, Antioxidant and Cytotoxic Potential of Silver Nanoparticles Synthesized Using Novel Eucalyptus tereticornis Leaves Extract. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01443-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Metabolic Enzyme Inhibitory and Larvicidal Activity of Biosynthesized and Heat Stabilized Silver Nanoparticles Using Annona muricata Leaf Extract. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-019-00709-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Salehi B, Sharifi-Rad J, Quispe C, Llaique H, Villalobos M, Smeriglio A, Trombetta D, Ezzat SM, Salem MA, Zayed A, Salgado Castillo CM, Yazdi SE, Sen S, Acharya K, Sharopov F, Martins N. Insights into Eucalyptus genus chemical constituents, biological activities and health-promoting effects. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.08.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Novel nano-composite hydrogels with honey effective against multi-resistant clinical strains of Acinetobacter baumannii and Pseudomonas aeruginosa. Appl Microbiol Biotechnol 2019; 103:8529-8543. [DOI: 10.1007/s00253-019-10055-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/17/2019] [Accepted: 07/26/2019] [Indexed: 01/22/2023]
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Therapeutic and diagnostic potential of nanomaterials for enhanced biomedical applications. Colloids Surf B Biointerfaces 2019; 180:411-428. [DOI: 10.1016/j.colsurfb.2019.05.008] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/02/2019] [Accepted: 05/07/2019] [Indexed: 01/01/2023]
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Isolation and characterization of Siphoviridae phage infecting extensively drug-resistant Acinetobacter baumannii and evaluation of therapeutic efficacy in vitro and in vivo. J Med Microbiol 2019; 68:1096-1108. [DOI: 10.1099/jmm.0.001002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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