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Ghanipour F, Nazari R, Aghaei SS, Jafari P. Effect of lipopeptide extracted from Bacillus licheniformis on the expression of bap and luxI genes in multi-drug-resistant Acinetobacter baumannii and Pseudomonas aeruginosa. Amino Acids 2023; 55:1891-1907. [PMID: 37907777 DOI: 10.1007/s00726-023-03346-6] [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: 04/09/2023] [Accepted: 10/03/2023] [Indexed: 11/02/2023]
Abstract
Recently, opportunistic pathogens like Acinetobacter baumannii and Pseudomonas aeruginosa have caused concern due to their ability to cause antibiotic resistance in weakened immune systems. As a result, researchers are always seeking efficient antimicrobial agents to tackle this issue. The hypothesis of the recent study was that probiotic products derived from bacteria would be effective in reducing drug resistance in other bacteria. This research aimed to investigate the antimicrobial properties of probiotic products from various bacterial strains, including Lactobacillus rhamnosus, Pediococcus acidilactisi, Bacillus coagulans, Bacillus subtilis, and Bacillus licheniformis. These were tested against multi-drug-resistant (MDR) standard strains A. baumannii and P. aeruginosa. B. licheniformis was found to be the most effective probiotic strain, possessing the LanA and LanM lantibiotic genes. The lipopeptide nature of the probiotic product was confirmed through high-performance liquid chromatography (HPLC) and Fourier-transform infrared spectroscopy (FTIR) techniques. The anti-biofilm and antimicrobial properties of this probiotic were measured using an SEM electron microscope and minimum inhibitory concentration (MIC) test. Real-time PCR (qPCR) was used to compare the expression of bap and luxI genes, which are considered virulence factors of drug-resistant bacteria, before and after treatment with antimicrobial agents. The MIC results showed that the probiotic product prevented the growth of bacteria at lower concentrations compared to antibiotics. In addition, the ΔΔCqs indicated that gene expression was significantly down-regulated following treatment with the obtained probiotic product. It was found that B. licheniformis probiotic products could reduce drug resistance in other bacteria, making it a potential solution to antibiotic resistance.
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Affiliation(s)
- Farangis Ghanipour
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, 15 Khordad Boulevard, Qom, Iran
| | - Razieh Nazari
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, 15 Khordad Boulevard, Qom, Iran.
| | - Seyed Soheil Aghaei
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, 15 Khordad Boulevard, Qom, Iran
| | - Parvaneh Jafari
- Department of Microbiology, Faculty of Basic Sciences, Arak Branch, Islamic Azad University, Arak, 3749113191, Iran
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Migration of surface-associated microbial communities in spaceflight habitats. Biofilm 2023; 5:100109. [PMID: 36909662 PMCID: PMC9999172 DOI: 10.1016/j.bioflm.2023.100109] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 02/05/2023] [Accepted: 02/17/2023] [Indexed: 02/26/2023] Open
Abstract
Astronauts are spending longer periods locked up in ships or stations for scientific and exploration spatial missions. The International Space Station (ISS) has been inhabited continuously for more than 20 years and the duration of space stays by crews could lengthen with the objectives of human presence on the moon and Mars. If the environment of these space habitats is designed for the comfort of astronauts, it is also conducive to other forms of life such as embarked microorganisms. The latter, most often associated with surfaces in the form of biofilm, have been implicated in significant degradation of the functionality of pieces of equipment in space habitats. The most recent research suggests that microgravity could increase the persistence, resistance and virulence of pathogenic microorganisms detected in these communities, endangering the health of astronauts and potentially jeopardizing long-duration manned missions. In this review, we describe the mechanisms and dynamics of installation and propagation of these microbial communities associated with surfaces (spatial migration), as well as long-term processes of adaptation and evolution in these extreme environments (phenotypic and genetic migration), with special reference to human health. We also discuss the means of control envisaged to allow a lasting cohabitation between these vibrant microscopic passengers and the astronauts.
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Jia D, Lin Y, Zou Y, Zhang Y, Yu Q. Recent Advances in Dual-Function Superhydrophobic Antibacterial Surfaces. Macromol Biosci 2023; 23:e2300191. [PMID: 37265089 DOI: 10.1002/mabi.202300191] [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: 05/04/2023] [Revised: 05/31/2023] [Indexed: 06/03/2023]
Abstract
Bacterial adhesion and subsequent biofilm formation on the surfaces of synthetic materials imposes a significant burden in various fields, which can lead to infections in patients or reduce the service life of industrial devices. Therefore, there is increasing interest in imbuing surfaces with antibacterial properties. Bioinspired superhydrophobic surfaces with high water contact angles (>150°) exhibit excellent surface repellency against contaminations, thereby preventing initial bacterial adhesion and inhibiting biofilm formation. However, conventional superhydrophobic surfaces typically lack long-term durability and are incapable of achieving persistent efficacy against bacterial adhesion. To overcome these limitations, in recent decades, dual-function superhydrophobic antibacterial surfaces with both bacteria-repelling and bacteria-killing properties have been developed by introducing bactericidal components. These surfaces have demonstrated improved long-term antibacterial performance in addressing the issues associated with surface-attached bacteria. This review summarizes the recent advancements of these dual-function superhydrophobic antibacterial surfaces. First, a brief overview of the fabrication strategies and bacteria-repelling mechanism of superhydrophobic surfaces is provided and then the dual-function superhydrophobic antibacterial surfaces are classified into three types based on the bacteria-killing mechanism: i) mechanotherapy, ii) chemotherapy, and iii) phototherapy. Finally, the limitations and challenges of current research are discussed and future perspectives in this promising area are proposed.
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Affiliation(s)
- Dongxu Jia
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Suzhou Medical College of Soochow University, Soochow University, Suzhou, 215000, P. R. China
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yuancheng Lin
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yi Zou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yanxia Zhang
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Suzhou Medical College of Soochow University, Soochow University, Suzhou, 215000, P. R. China
| | - Qian Yu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
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Kumara SPSNBS, Senevirathne SWMAI, Mathew A, Bray L, Mirkhalaf M, Yarlagadda PKDV. Progress in Nanostructured Mechano-Bactericidal Polymeric Surfaces for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2799. [PMID: 37887949 PMCID: PMC10609396 DOI: 10.3390/nano13202799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023]
Abstract
Bacterial infections and antibiotic resistance remain significant contributors to morbidity and mortality worldwide. Despite recent advances in biomedical research, a substantial number of medical devices and implants continue to be plagued by bacterial colonisation, resulting in severe consequences, including fatalities. The development of nanostructured surfaces with mechano-bactericidal properties has emerged as a promising solution to this problem. These surfaces employ a mechanical rupturing mechanism to lyse bacterial cells, effectively halting subsequent biofilm formation on various materials and, ultimately, thwarting bacterial infections. This review delves into the prevailing research progress within the realm of nanostructured mechano-bactericidal polymeric surfaces. It also investigates the diverse fabrication methods for developing nanostructured polymeric surfaces with mechano-bactericidal properties. We then discuss the significant challenges associated with each approach and identify research gaps that warrant exploration in future studies, emphasizing the potential for polymeric implants to leverage their distinct physical, chemical, and mechanical properties over traditional materials like metals.
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Affiliation(s)
- S. P. S. N. Buddhika Sampath Kumara
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Australian Research Council Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - S. W. M. Amal Ishantha Senevirathne
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Asha Mathew
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- School of Engineering, University of Southern Queensland, Springfield, QLD 4300, Australia
| | - Laura Bray
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Mohammad Mirkhalaf
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Prasad K. D. V. Yarlagadda
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Australian Research Council Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- School of Engineering, University of Southern Queensland, Springfield, QLD 4300, Australia
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Pemmada R, Shrivastava A, Dash M, Cui K, Kumar P, Ramakrishna S, Zhou Y, Thomas V, Nanda HS. Science-based strategies of antibacterial coatings with bactericidal properties for biomedical and healthcare settings. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2022. [DOI: 10.1016/j.cobme.2022.100442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Sahoo A, Swain SS, Panda SK, Hussain T, Panda M, Rodrigues CF. In Silico Identification of Potential Insect Peptides against Biofilm-Producing Staphylococcus aureus. Chem Biodivers 2022; 19:e202200494. [PMID: 36198620 DOI: 10.1002/cbdv.202200494] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/13/2022] [Indexed: 11/08/2022]
Abstract
Biofilm-producing Staphylococcus aureus (SA) strains are frequently found in medical environments, from surgical/ wound sites, medical devices. These biofilms reduce the efficacy of applied antibiotics during the treatment of several infections, such as cystic fibrosis, endocarditis, or urinary tract infections. Thus, the development of potential therapeutic agents to destroy the extra protective biofilm layers or to inhibit the biofilm-producing enzymes is urgently needed. Advanced and cost-effective bioinformatics tools are advantageous in locating and speeding up the selection of antibiofilm candidates. Based on the potential drug characteristics, we have selected one-hundred thirty-three antibacterial peptides derived from insects to assess for their antibiofilm potency via molecular docking against five putative biofilm formation and regulated target enzymes: the staphylococcal accessory regulator A or SarA (PDB ID: 2FRH), 4,4'-diapophytoene synthase or CrtM (PDB ID: 2ZCQ), clumping factor A or ClfA (PDB ID: 1N67) and serine-aspartate repeat protein C or SdrC (PDB ID: 6LXH) and sortase A or SrtA (PDB ID: 1T2W) of SA bacterium. In this study, molecular docking was performed using HPEPDOCK and HDOCK servers, and molecular interactions were examined using BIOVIA Discovery Studio Visualizer-2019. The docking score (kcal/mol) range of five promising antibiofilm peptides against five targets was recorded as follows: diptericin A (-215.52 to -303.31), defensin (-201.11 to -301.92), imcroporin (-212.08 to -287.64), mucroporin (-228.72 to -286.76), apidaecin II (-203.90 to -280.20). Among these five, imcroporin and mucroporin were 13 % each, while defensin contained only 1 % of positive net charged residues (Arg+Lys) projected through ProtParam and NetWheels tools. Similarly, imcroporin, mucroporin and apidaecin II were 50 %, while defensin carried 21.05 % of hydrophobic residues predicted by the tool PEPTIDE. 2.0. Most of the peptides exhibited potential characteristics to inhibit S. aureus-biofilm formation via disrupting the cell membrane and cytoplasmic integrity. In summary, the proposed hypothesis can be considered a cost-effective platform for selecting the most promising bioactive drug candidates within a limited timeframe with a greater chance of success in experimental and clinical studies.
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Affiliation(s)
- Alaka Sahoo
- Department of Skin & VD, Institute of Medical Sciences & SUM Hospital, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, 751023 1, India
| | - Shasank S Swain
- Division of Microbiology and NCDs, ICMR-, Regional Medical Research Center, Bhubaneswar, 751023, Odisha, India
| | - Sujogya K Panda
- Center of Environment Climate Change and Public Health, Utkal University, Vani Vihar, Bhubaneswar, 751004, Odisha, India
| | - Tahziba Hussain
- Division of Microbiology and NCDs, ICMR-, Regional Medical Research Center, Bhubaneswar, 751023, Odisha, India
| | - Maitreyee Panda
- Department of Skin & VD, Institute of Medical Sciences & SUM Hospital, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, 751023 1, India
| | - Célia F Rodrigues
- TOXRUN-Toxicology Research Unit, Cooperativa de Ensino Superior Politécnico e Universitário - CESPU, 4585-116 Gandra PRD, Portugal.,LEPABE-Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465, Porto, Portugal.,AliCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
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Chan Y, Singh SK, Gulati M, Wadhwa S, Prasher P, Kumar D, Kumar AP, Gupta G, Kuppusamy G, Haghi M, George Oliver BG, Adams J, Chellappan DK, Dua K. Advances and applications of monoolein as a novel nanomaterial in mitigating chronic lung diseases. J Drug Deliv Sci Technol 2022; 74:103541. [PMID: 35774068 PMCID: PMC9221924 DOI: 10.1016/j.jddst.2022.103541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/31/2022] [Accepted: 06/20/2022] [Indexed: 12/25/2022]
Abstract
Chronic lung diseases such as asthma, chronic obstructive pulmonary disease, lung cancer, and the recently emerged COVID-19, are a huge threat to human health, and among the leading causes of global morbidity and mortality every year. Despite availability of various conventional therapeutics, many patients remain poorly controlled and have a poor quality of life. Furthermore, the treatment and diagnosis of these diseases are becoming increasingly challenging. In the recent years, the application of nanomedicine has become increasingly popular as a novel strategy for diagnosis, treatment, prevention, as well as follow-up of chronic lung diseases. This is attributed to the ability of nanoscale drug carriers to achieve targeted delivery of therapeutic moieties with specificity to diseased site within the lung, thereby enhancing therapeutic outcomes of conventional therapies whilst minimizing the risks of adverse reactions. For this instance, monoolein is a polar lipid nanomaterial best known for its versatility, thermodynamic stability, biocompatibility, and biodegradability. As such, it is commonly employed in liquid crystalline systems for various drug delivery applications. In this review, we present the applications of monoolein as a novel nanomaterial-based strategy for targeted drug delivery with the potential to revolutionize therapeutic approaches in chronic lung diseases.
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Affiliation(s)
- Yinghan Chan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, 2007, Australia
| | - Monica Gulati
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, 2007, Australia
| | - Sheetu Wadhwa
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Dehradun, 248007, India
| | - Deepak Kumar
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Avvaru Praveen Kumar
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, Po Box 1888, Adama, Ethiopia
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura, Jaipur, India
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Gowthamarajan Kuppusamy
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, India
| | - Mehra Haghi
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, 2007, Australia
| | - Brian Gregory George Oliver
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Woolcock Institute of Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Jon Adams
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, 2007, Australia
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, 2007, Australia
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, 2007, Australia
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Moldovan ER, Concheso Doria C, Ocaña JL, Baltes LS, Stanciu EM, Croitoru C, Pascu A, Roata IC, Tierean MH. Wettability and Surface Roughness Analysis of Laser Surface Texturing of AISI 430 Stainless Steel. MATERIALS 2022; 15:ma15082955. [PMID: 35454645 PMCID: PMC9028002 DOI: 10.3390/ma15082955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 12/17/2022]
Abstract
Due to its wide applicability in industry, devising microstructures on the surface of materials can be easily implemented and automated in technological processes. Laser Surface Texturing (LST) is applied to modify the chemical composition, morphology, and roughness of surfaces (wettability), cleaning (remove contaminants), reducing internal stresses of metals (hardening, tempering), surface energy (polymers, metals), increasing the adhesion (hybrid joining, bioengineering) and decreasing the growth of pathogenic bacteria (bioengineering). This paper is a continuation and extension of our previous studies in laser-assisted texturing of surfaces. Three different patterns (crater array-type C, two ellipses at 90° overlapping with its mirror-type B and 3 concentric octagons-type A) were applied with a nanosecond pulsed laser (active medium Nd: Fiber Diode-pumped) on the surface of a ferritic stainless steel (AISI 430). Micro texturing the surface of a material can modify its wettability behavior. A hydrophobic surface (contact angle greater than 90°) was obtained with different variations depending on the parameters. The analysis performed in this research (surface roughness, wettability) is critical for assessing the surface functionality, characteristics and properties of the stainless steel surface after the LST process. The values of the surface roughness and the contact angle are directly proportional to the number of repetitions and inversely proportional to the speed. Recommendations for the use of different texturing pattern designs are also made.
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Affiliation(s)
- Edit Roxana Moldovan
- Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, Romania; (E.R.M.); (L.S.B.); (E.M.S.); (C.C.); (A.P.); (I.C.R.)
| | - Carlos Concheso Doria
- BSH Electrodomésticos España, S.A., Avda. de la Industria 49, 50016 Zaragoza, Spain;
| | - José Luis Ocaña
- Departamento de Física Aplicada e Ingeniería de Materiales, Universidad Politecnica de Madrid, C/ José Gutiérrez Abascal 2, 28006 Madrid, Spain;
| | - Liana Sanda Baltes
- Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, Romania; (E.R.M.); (L.S.B.); (E.M.S.); (C.C.); (A.P.); (I.C.R.)
| | - Elena Manuela Stanciu
- Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, Romania; (E.R.M.); (L.S.B.); (E.M.S.); (C.C.); (A.P.); (I.C.R.)
| | - Catalin Croitoru
- Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, Romania; (E.R.M.); (L.S.B.); (E.M.S.); (C.C.); (A.P.); (I.C.R.)
| | - Alexandru Pascu
- Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, Romania; (E.R.M.); (L.S.B.); (E.M.S.); (C.C.); (A.P.); (I.C.R.)
| | - Ionut Claudiu Roata
- Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, Romania; (E.R.M.); (L.S.B.); (E.M.S.); (C.C.); (A.P.); (I.C.R.)
| | - Mircea Horia Tierean
- Materials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, Romania; (E.R.M.); (L.S.B.); (E.M.S.); (C.C.); (A.P.); (I.C.R.)
- Correspondence: ; Tel.: +40-744-482284
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Recent Mitigation Strategies in Engineered Health Care Materials Towards Antimicrobial Applications. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2022. [DOI: 10.1016/j.cobme.2022.100377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Prospects for the creation of antimicrobial preparations based on copper and copper oxides nanoparticles. ACTA BIOMEDICA SCIENTIFICA 2021. [DOI: 10.29413/abs.2021-6.6-2.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The spread of strains of microorganisms that are multidrug resistant to modern antimicrobial drugs is still an urgent problem in the treatment and prevention of infectious diseases and public health in general.Currently, the possibility of using metal nanopreparations in various fields of medicine is being actively studied. Nanoparticles of metals and metal oxides are promising antimicrobial agents and are attracting growing interest due to their effectiveness. Nanoscale copper metal particles have shown high antimicrobial activity againstvarious types of gram-positive and gram-negative bacteria, as well as fungi. Taking into account the potential of copper nanoparticles in antimicrobial therapy, we present an overview of the current state of research related to their antimicrobial properties, consideration of the mechanisms of action, key factors affecting antimicrobial activity, including the polymer matrix. The issues of toxicity and resistance to copper are considered. The advantage of copper nanoparticles over other metal nanoparticles is shown.The studies summarized in this review have shown the promise of copper nanoparticles in the creation of new antimicrobial drugs that can be used in the future to control, prevent, and treat various diseases.
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Hamel Mohaisen S, Hussain Ali M, Hashem Shehab Z, Al-Mayyahi AW, Abdulhassan AA. Effect of Ultraviolet Light on the Expression of icaD Gene in Staphylococcus aureus Local Isolates in Iraq. ARCHIVES OF RAZI INSTITUTE 2021; 76:1221-1227. [PMID: 35355742 PMCID: PMC8934105 DOI: 10.22092/ari.2021.355654.1706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/30/2021] [Indexed: 01/24/2023]
Abstract
The current study was designed to reveal the impact of ultraviolet (UV) light on polysaccharide intercellular adhesion of the icaD gene expression and its relation to biofilm as virulence markers in Staphylococcus aureus. In total, 37 isolates of S. aureus were gathered from various bacterial infection sources, and 26 S. aureus isolates were definite to icaD gene using the Polymerase Chain Reaction (PCR) technique. Prior to and after exposure to UV light, RNAs from the isolates were extracted which had strong biofilm formation by crystal violet staining assay, and they were then exposed to quantitative real-time PCR (qPCR). In vitro, the survival of isolates was evaluated after the exposition to several periods of the UV light power via counting the number of colonies. The results showed that the exposure to the UV light at 320 nm for 2, 4, 6, 8, and 10 min had inhibitory effects on the bacterial growth. The sub-lethal exposure time was 8 min. The rapid reduction of bacterial survival rates was associated with the increment irradiation time of UV power from 5 to 1.24 log10 CFU/ml. In general, down regulation of the icaD gene expression was decreased upon exposure to the UV light which was used as a physical agent for controlling the bacterial infection and biofilm formation.
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Affiliation(s)
- S Hamel Mohaisen
- Institute of Genetic Engineering and Biotechnology for Postgraduate Studies, University of Baghdad, Baghdad, Iraq
| | - M Hussain Ali
- Institute of Genetic Engineering and Biotechnology for Postgraduate Studies, University of Baghdad, Baghdad, Iraq
| | - Z Hashem Shehab
- Biology Department, College of Science for Women, University of Baghdad, Baghdad, Iraq
| | | | - A. A Abdulhassan
- Institute of Genetic Engineering and Biotechnology for Postgraduate Studies, University of Baghdad, Baghdad, Iraq
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12
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Chan Y, Raju Allam VSR, Paudel KR, Singh SK, Gulati M, Dhanasekaran M, Gupta PK, Jha NK, Devkota HP, Gupta G, Hansbro PM, Oliver BGG, Chellappan DK, Dua K. Nutraceuticals: unlocking newer paradigms in the mitigation of inflammatory lung diseases. Crit Rev Food Sci Nutr 2021:1-31. [PMID: 34613853 DOI: 10.1080/10408398.2021.1986467] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Persistent respiratory tract inflammation contributes to the pathogenesis of various chronic respiratory diseases, such as asthma, chronic obstructive pulmonary disease, and pulmonary fibrosis. These inflammatory respiratory diseases have been a major public health concern as they are the leading causes of worldwide mortality and morbidity, resulting in heavy burden on socioeconomic growth throughout these years. Although various therapeutic agents are currently available, the clinical applications of these agents are found to be futile due to their adverse effects, and most patients remained poorly controlled with a low quality of life. These drawbacks have necessitated the development of novel, alternative therapeutic agents that can effectively improve therapeutic outcomes. Recently, nutraceuticals such as probiotics, vitamins, and phytochemicals have gained increasing attention due to their nutritional properties and therapeutic potential in modulating the pathological mechanisms underlying inflammatory respiratory diseases, which could ultimately result in improved disease control and overall health outcomes. As such, nutraceuticals have been held in high regard as the possible alternatives to address the limitations of conventional therapeutics, where intensive research are being performed to identify novel nutraceuticals that can positively impact various inflammatory respiratory diseases. This review provides an insight into the utilization of nutraceuticals with respect to their molecular mechanisms targeting multiple signaling pathways involved in the pathogenesis of inflammatory respiratory diseases.
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Affiliation(s)
- Yinghan Chan
- School of Pharmacy, International Medical University (IMU), Kuala Lumpur, Malaysia
| | | | - Keshav Raj Paudel
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Sachin K Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Monica Gulati
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Muralikrishnan Dhanasekaran
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, Alabama, USA
| | - Piyush Kumar Gupta
- Department of Life Sciences, School of Basic Sciences and Research (SBSR), Sharda University, Greater Noida, Uttar Pradesh, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, Uttar Pradesh, India
| | - Hari Prasad Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto City, Kumamoto, Japan
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Jaipur, India
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Brian Gregory George Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia.,Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, Uttar Pradesh, India.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, Australia.,Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
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13
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Zhuang P, Li K, Li D, Qiao H, E Y, Wang M, Sun J, Mei X, Li D. Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity. NANOSCALE RESEARCH LETTERS 2021; 16:121. [PMID: 34324080 PMCID: PMC8322205 DOI: 10.1186/s11671-021-03582-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
Carbon dots (CDs) have been widely used as antimicrobials due to their active surface, but some CDs suffer instability. Therefore, the relative applications such as the antibacterial activity may not be reliable for long-term use. Herein, we synthesize CDs with blue fluorescence by a hydrothermal process. Thereafter, polyethylenimine was applied for the assembly of CDs into CDs-based frameworks (CDFs). The CDFs exhibited quenched fluorescence but showed more stable properties based on the scanning electron microscope and zeta potential investigations. Both CDs and CDFs show antibacterial activity toward Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus), but CDFs exhibited better antibacterial performance, and S. aureus could be completely inhibited with the minimum inhibitory concentration of 30 μg/mL. This reveals CDFs magnify both the stability and antibacterial activity, which would be more promising for practical applications.
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Affiliation(s)
- Pengfei Zhuang
- Jinzhou Medical University, Jinzhou, China
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Kuo Li
- Jinzhou Medical University, Jinzhou, China
| | - Daoyong Li
- Jinzhou Medical University, Jinzhou, China
| | - Haixia Qiao
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Yifeng E
- Department of Pharmacology, Jinzhou Medical University, Jinzhou, China
| | - Mingqun Wang
- Department of Basic Medical Science, Jinzhou Medical University, Jinzhou, China
| | | | - Xifan Mei
- Jinzhou Medical University, Jinzhou, China.
| | - Dan Li
- Jinzhou Medical University, Jinzhou, China.
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China.
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14
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Puranen S, Riekkinen K, Korhonen J. Antibiofilm Effects of Nanoparticles and Visible Light Illumination Against Listeria monocytogenes. Front Microbiol 2021; 12:710954. [PMID: 34326829 PMCID: PMC8313959 DOI: 10.3389/fmicb.2021.710954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 06/24/2021] [Indexed: 11/13/2022] Open
Abstract
Listeria monocytogenes bacteria pose a particular risk to the food industry as the species is known to form biofilm and to survive in a wide range of challenging environmental conditions. L. monocytogenes can cause listeriosis, a serious food-borne disease, and effective and safe antibiofilm materials and sanitary methods for food processing environments are intensively sought. A variety of nanoparticle materials have been recognized as safe to use in food environments, which allows the application of nanomaterials also for food safety purposes. Nanoparticles together with light illumination generate reactive oxygen species which inactivate bacteria by breaking down cell membranes, proteins, and DNA. The main objective of this study was to evaluate the efficacy of nanomaterials and blue light illumination for L. monocytogenes ATCC 7644 biofilm inactivation. Biofilm was allowed to form for 72 h on nanocoated stainless steel and aluminum plates, after which the plates were illuminated. Non-coated control plates were used to evaluate the antibiofilm efficacy of nanocoating. Plate count method was used to evaluate bacteria counts after illumination. Nanocoating did not affect initial biofilm formation compared to the control plates. Biofilm was significantly (p < 0.05) reduced on stainless steel, aluminum, and TiO2-coated aluminum plates after 72-h illumination by 1.9, 3.2, and 5.9 log, respectively. Nanocoating with visible light illumination could be an effective and safe method for enhancing food safety in food processing facilities to control biofilm formation. Evidence of antibiofilm properties of nanomaterials together with visible light illumination is limited; hence, future studies with variable light intensities and nanomaterials are needed.
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Affiliation(s)
- Sanna Puranen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Kati Riekkinen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Jenni Korhonen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
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