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Das S, Sen B, Sarkar S, Das I, Sepay N, Paul S, Mandal S, Roy A, Malecka M, Abbas SJ, Gangavarapu RR, Vijayakumar B, Ali SI. Design, Synthesis, and Characterization of Polyoxotungstate-Decorated Ionic Liquid-Based Hybrid Material, [BmIm] 4[SiW 12O 40] toward Rapid Adsorption of Dye and Antibacterial Activities. Inorg Chem 2024; 63:18448-18467. [PMID: 39284795 DOI: 10.1021/acs.inorgchem.4c01765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
A multifunctional polyoxometalate-ionic liquid (POM-IL)-based hybrid material comprising silicotungstic acid, [BmIm]4[SiW12O40], has been synthesized and demonstrated its efficiency toward methylene blue removal and as an antibacterial agent. Single-crystal XRD analysis confirms that the material crystallizes in monoclinic symmetry (SG: Pn), with lattice parameters a = 13.1396(5) Å, b = 16.9655(8) Å, c = 14.3493(7) Å, and Z = 2. The structure comprises a single polyanionic [SiW12O40]4- moiety surrounded by four cationic [BmIm]+ units of two different conformations, which supported DFT and Hirshfeld surface analysis. The material shows excellent removal efficiency for methylene blue, with a maximum adsorption capacity of 92.47 mg/g and 83.05% reusability after five cycles. On the contrary, FTIR and ζ-potential analyses confirm that electrostatic interactions are the predominant factors governing the adsorption process. The material also acts as a superior antibacterial agent against the opportunistic pathogens Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli with a MIC of 500-700 μg/mL. However, a comparative assessment showed that the material was more effective against P. aeruginosa compared to the other two pathogens. PXRD analysis confirms the phase purity, and FESEM and TEM analyses exhibit block-shaped morphology with particle sizes ∼2-3 μm.
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Affiliation(s)
- Sangita Das
- Department of Chemistry, University of Kalyani, Nadia, West Bengal 741235, India
| | - Bibaswan Sen
- Department of Chemistry, University of Kalyani, Nadia, West Bengal 741235, India
| | - Sudeshna Sarkar
- Department of Microbiology, University of Kalyani, Nadia, West Bengal 741235, India
| | - Indrajit Das
- Department of Microbiology, University of Kalyani, Nadia, West Bengal 741235, India
| | - Nayim Sepay
- Department of Chemistry, Lady Brabourne College, Kolkata, West Bengal 700017, India
| | - Sayantani Paul
- Department of Chemistry, University of Kalyani, Nadia, West Bengal 741235, India
| | - Supratim Mandal
- Department of Microbiology, University of Kalyani, Nadia, West Bengal 741235, India
| | - Adhiraj Roy
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Sector 125, Noida, Uttar Pradesh 201303, India
| | - Magdalena Malecka
- Department of Biophysical Chemistry, University of Lodz, Lodz 90236, Poland
| | - Sk Jahir Abbas
- Department of Obstetrics and Gynecology, Asia University Hospital, Taichung 41354, Taiwan
| | - Ranga Rao Gangavarapu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Badathala Vijayakumar
- Department of Chemistry, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College (Autonomous), Avadi, Chennai 600062, India
| | - Sk Imran Ali
- Department of Chemistry, University of Kalyani, Nadia, West Bengal 741235, India
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2
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Moreno CN, Gomez JN, Taranto MP, Ledesma AE, Bustos AY. Molecular Insight into the Response of Lactic Acid Bacteria to Bile Acids. BIOTECH 2024; 13:29. [PMID: 39189208 PMCID: PMC11348023 DOI: 10.3390/biotech13030029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 08/28/2024] Open
Abstract
Bile acids (BAs) are the main endogenous modulators of the composition and metabolic activity of the intestinal microbiota. In the present work, the effect of conjugated (glycodeoxycholic, glycocholic, taurodeoxycholic, taurocholic acids) and free BAs [cholic acid (CA) and deoxycholic acid (DCA)] on the survival, biological molecules, and structural and surface properties of two potential probiotic lactic acid bacteria (LAB) was evaluated. For this, viability assays, Raman spectroscopy, scanning electron microscopy (SEM), and zeta potential (ZP) measurements were employed. Our results evidenced that free BAs were more toxic than conjugates, with CA being significantly more harmful than deoxycholic acid (DCA). RAMAN studies show that BAs modify the bands corresponding to proteins, lipids, carbohydrates, and DNA. SEM showed that BAs cause surface distortions with depressions and fold formation, as well as incomplete cell division. DCA was the one that least altered the ZP of bacteria when compared to CA and taurodeoxycholic acid, with gradual changes towards more positive values. In general, the magnitude of these effects was different according to the BA and its concentration, being more evident in the presence of CA, even at low concentrations, which would explain its greater inhibitory effect. This work provides solid evidence on the effects of BAs on LAB that will allow for the development of strategies by which to modulate the composition of the microbiota positively.
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Affiliation(s)
- Caren N. Moreno
- Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL-UNSE-CONICET), RN 9, Km 1125, Santiago del Estero 4206, Argentina; (C.N.M.); (J.N.G.); (A.E.L.)
| | - Jorge N. Gomez
- Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL-UNSE-CONICET), RN 9, Km 1125, Santiago del Estero 4206, Argentina; (C.N.M.); (J.N.G.); (A.E.L.)
| | - María P. Taranto
- Centro de Referencia de Lactobacilos (CERELA-CONICET), Chacabuco 145, San Miguel de Tucumán 4000, Argentina;
| | - Ana E. Ledesma
- Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL-UNSE-CONICET), RN 9, Km 1125, Santiago del Estero 4206, Argentina; (C.N.M.); (J.N.G.); (A.E.L.)
- Departamento Académico de Química, Facultad de Ciencias Exactas y Tecnologías, Universidad Nacional de Santiago del Estero, Av. Belgrano Sur 1912, Santiago del Estero 4200, Argentina
| | - Ana Y. Bustos
- Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL-UNSE-CONICET), RN 9, Km 1125, Santiago del Estero 4206, Argentina; (C.N.M.); (J.N.G.); (A.E.L.)
- Facultad de Agronomía y Agroindustrias, Universidad Nacional de Santiago del Estero. Av. Belgrano Sur 1912, Santiago del Estero 4200, Argentina
- Facultad de Humanidades, Ciencias Sociales y de la Salud, Universidad Nacional de Santiago del Estero. Av. Belgrano Sur 1912, Santiago del Estero 4200, Argentina
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3
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Park J, Xiang Z, Liu Y, Li CH, Chen C, Nagaraj H, Nguyen T, Nabawy A, Koo H, Rotello VM. Surface-Charge Tuned Polymeric Nanoemulsions for Carvacrol Delivery in Interkingdom Biofilms. ACS APPLIED MATERIALS & INTERFACES 2024; 16:37613-37622. [PMID: 39007413 DOI: 10.1021/acsami.4c06618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Biofilms, intricate microbial communities entrenched in extracellular polymeric substance (EPS) matrices, pose formidable challenges in infectious disease treatment, especially in the context of interkingdom biofilms prevalent in the oral environment. This study investigates the potential of carvacrol-loaded biodegradable nanoemulsions (NEs) with systematically varied surface charges─cationic guanidinium (GMT-NE) and anionic carboxylate (CMT-NE). Zeta potentials of +25 mV (GMT-NE) and -33 mV (CMT-NE) underscore successful nanoemulsion fabrication (∼250 nm). Fluorescent labeling and dynamic tracking across three dimensions expose GMT-NE's superior diffusion into oral biofilms, yielding a robust antimicrobial effect with 99.99% killing for both streptococcal and Candida species and marked reductions in bacterial cell viability compared to CMT-NE (∼4-log reduction). Oral mucosa tissue cultures affirm the biocompatibility of both NEs with no morphological or structural changes, showcasing their potential for combating intractable biofilm infections in oral environment. This study advances our understanding of NE surface charges and their interactions within interkingdom biofilms, providing insights crucial for addressing complex infections involving bacteria and fungi in the demanding oral context.
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Affiliation(s)
- Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Zhenting Xiang
- Biofilm Research Laboratories, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, 240 S 40th Street, Philadelphia, Pennsylvania 19104, United States
| | - Yuan Liu
- Biofilm Research Laboratories, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Chider Chen
- Department of Oral and Maxillofacial Surgery and Pharmacology, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Harini Nagaraj
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Tiffany Nguyen
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Hyun Koo
- Biofilm Research Laboratories, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, 240 S 40th Street, Philadelphia, Pennsylvania 19104, United States
- Center for Innovation and Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, 240 S 40th Street, Philadelphia, Pennsylvania 19104, United States
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, 210 S 33rd Street, Philadelphia, Pennsylvania 19104, United States
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
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Wong MY, Lin BS, Hu PS, Huang TY, Huang YK. Nanoparticles of Cs 0.33WO 3 as Antibiofilm Agents and Photothermal Treatment to Inhibit Biofilm Formation. ACS OMEGA 2024; 9:28144-28154. [PMID: 38973863 PMCID: PMC11223238 DOI: 10.1021/acsomega.4c01212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 07/09/2024]
Abstract
Metal oxide nanoparticles with photothermal properties have attracted considerable research attention for their use in biomedical applications. Cesium tungsten oxide (Cs0.33WO3) nanoparticles (NPs) exhibit strong absorption in the NIR region due to localized surface plasmon resonance, through which they convert light to heat; hence, they can be applied to photothermal treatment for bacteria and biofilm ablation. Herein, Cs0.33WO3 NPs were synthesized through solid-phase synthesis, and their physical properties were characterized through Zetasizer, energy dispersive X-ray spectroscopy, Fourier transform infrared spectrometer, and scanning and transmission electron microscopy (SEM and TEM, respectively). Burkholderia cenocepacia isolates were cultured in tryptic soy broth supplemented with glucose, and the biofilm inhibition and antibiofilm effects of the NPs were determined using a crystal violet assay and the Cell Counting Kit-8 (CCK-8) assay. The biofilm morphology and viability of NP-treated cultures after NIR irradiation were evaluated through SEM and confocal microscopy, respectively. The cytotoxicity of NPs to human macrophages was also assessed using the CCK-8 assay. The NPs effectively inhibited biofilm formation, with a formation rate of <10% and a viability rate of <50% at the concentration of ≥200 μg/mL. The confocal analysis revealed that NIR irradiation markedly enhanced biofilm cytotoxicity after treatment with the NPs. The assay of cytotoxicity to human macrophages demonstrated the biocompatibility of the NPs and NIR irradiation. In sum, the Cs0.33WO3 NPs displayed effective biofilm inhibition and antibiofilm activity at 200 μg/mL treatment concentration; they exhibited an enhancement effect under the NIR irradiation, suggesting Cs0.33WO3 NPs are a potential candidate agent for NIR-irradiated photothermal treatment in bacterial biofilm inhibition and antibiofilm.
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Affiliation(s)
- Min Yi Wong
- Division
of Thoracic and Cardiovascular Surgery, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan
- College
of Photonics, National Yang Ming Chiao Tung
University, Tainan
City 71150, Taiwan
| | - Bor-Shyh Lin
- College
of Photonics, National Yang Ming Chiao Tung
University, Tainan
City 71150, Taiwan
| | - Po-Sheng Hu
- College
of Photonics, National Yang Ming Chiao Tung
University, Tainan
City 71150, Taiwan
| | - Tsung-Yu Huang
- Division
of Infectious Diseases, Department of Internal Medicine, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan
- College
of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
| | - Yao-Kuang Huang
- Division
of Thoracic and Cardiovascular Surgery, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan
- College
of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
- Division
of Thoracic and Cardiovascular Surgery, Chiayi Hospital, MOHW, Chiayi
City 60096, Taiwan
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5
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Kar S, Das SS, Kundu S, Sahu BD, Kumar KJ, Kesari KK, Singh SK. Intranasal Delivery of Carvedilol- and Quercetin-Encapsulated Cationic Nanoliposomes for Cardiovascular Targeting: Formulation and In Vitro and Ex Vivo Studies. ACS APPLIED BIO MATERIALS 2024; 7:3061-3085. [PMID: 38581388 DOI: 10.1021/acsabm.4c00102] [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] [Indexed: 04/08/2024]
Abstract
Carvedilol (CVD), an adrenoreceptor blocker, is a hydrophobic Biopharmaceutics Classification System class II drug with poor oral bioavailability due to which frequent dosing is essential to attain pharmacological effects. Quercetin (QC), a polyphenolic compound, is a potent natural antioxidant, but its oral dosing is restricted due to poor aqueous solubility and low oral bioavailability. To overcome the common limitations of both drugs and to attain synergistic cardioprotective effects, we formulated CVD- and QC-encapsulated cationic nanoliposomes (NLPs) in situ gel (CVD/QC-L.O.F.) for intranasal administration. We designed CVD- and QC-loaded cationic nanoliposomal (NLPs) in situ gel (CVD/QC-L.O.F.) for intranasal administration. In vitro drug release studies of CVD/QC-L.O.F. (16.25%) exhibited 18.78 ± 0.57% of QC release and 91.38 ± 0.93% of CVD release for 120 h. Ex vivo nasal permeation studies of CVD/QC-L.O.F. demonstrated better permeation of QC (within 96 h), i.e., 75.09% compared to in vitro drug release, whereas CVD permeates within 48 h, indicating the better interaction between cationic NLPs and the negatively charged biological membrane. The developed nasal gel showed a sufficient mucoadhesive property, good spreadability, higher firmness, consistency, and cohesiveness, indicating suitability for membrane application and intranasal administration. CVD-NLPs, QC-NLPs, and CVD/QC-NLPs were evaluated for in vitro cytotoxicity, in vitro ROS-induced cell viability assessment, and a cellular uptake study using H9c2 rat cardiomyocytes. The highest in vitro cellular uptake of CVD/QC-cationic NLPs by H9c2 cells implies the benefit of QC loading within the CVD nanoliposomal carrier system and gives evidence for better interaction of NLPs carrying positive charges with the negatively charged biological cells. The in vitro H2O2-induced oxidative stress cell viability assessment of H9c2 cells established the intracellular antioxidant activity and cardioprotective effect of CVD/QC-cationic NLPs with low cytotoxicity. These findings suggest the potential of cationic NLPs as a suitable drug delivery carrier for CVD and QC combination for the intranasal route in the treatment of various cardiovascular diseases like hypertension, angina pectoris, etc. and for treating neurodegenerative disorders.
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Affiliation(s)
- Sweta Kar
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Sabya Sachi Das
- School of Pharmaceutical and Population Health Informatics, DIT University, Dehradun 248009, Uttarakhand, India
| | - Sourav Kundu
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari 781101, Assam, India
| | - Bidya Dhar Sahu
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari 781101, Assam, India
| | - K Jayaram Kumar
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Kavindra Kumar Kesari
- Department of Applied Physics, School of Science, Aalto University, 00076 Espoo, Finland
| | - Sandeep Kumar Singh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
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6
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Aonofriesei F. Surfactants' Interplay with Biofilm Development in Staphylococcus and Candida. Pharmaceutics 2024; 16:657. [PMID: 38794319 PMCID: PMC11125353 DOI: 10.3390/pharmaceutics16050657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/09/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
The capacity of micro-organisms to form biofilms is a pervasive trait in the microbial realm. For pathogens, biofilm formation serves as a virulence factor facilitating successful host colonization. Simultaneously, infections stemming from biofilm-forming micro-organisms pose significant treatment challenges due to their heightened resistance to antimicrobial agents. Hence, the quest for active compounds capable of impeding microbial biofilm development stands as a pivotal pursuit in biomedical research. This study presents findings concerning the impact of three surfactants, namely, polysorbate 20 (T20), polysorbate 80 (T80), and sodium dodecyl sulfate (SDS), on the initial stage of biofilm development in both Staphylococcus aureus and Candida dubliniensis. In contrast to previous investigations, we conducted a comparative assessment of the biofilm development capacity of these two taxonomically distant groups, predicated on their shared ability to reduce TTC. The common metabolic trait shared by S. aureus and C. dubliniensis in reducing TTC to formazan facilitated a simultaneous evaluation of biofilm development under the influence of surfactants across both groups. Our results revealed that surfactants could impede the development of biofilms in both species by disrupting the initial cell attachment step. The observed effect was contingent upon the concentration and type of compound, with a higher inhibition observed in culture media supplemented with SDS. At maximum concentrations (5%), T20 and T80 significantly curtailed the formation and viability of S. aureus and C. dubliniensis biofilms. Specifically, T20 inhibited biofilm development by 75.36% in S. aureus and 71.18% in C. dubliniensis, while T80 exhibited a slightly lower inhibitory effect, with values ranging between 66.68% (C. dubliniensis) and 65.54% (S. aureus) compared to the controls. Incorporating these two non-toxic surfactants into pharmaceutical formulations could potentially enhance the inhibitory efficacy of selected antimicrobial agents, particularly in external topical applications.
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Affiliation(s)
- Florin Aonofriesei
- Department of Natural Sciences, Faculty of Natural and Agricultural Sciences, Ovidius University of Constanta, 1, University Street, 900470 Constanța, Romania
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7
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Zhang W, Li B, Yu R, Xu W, Liu X, Su J, Yuan G. Hepcidin contributes to largemouth bass (Micropterus salmoides) against bacterial infections. Int J Biol Macromol 2024; 266:131144. [PMID: 38556234 DOI: 10.1016/j.ijbiomac.2024.131144] [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: 09/13/2023] [Revised: 01/16/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
The increasing emergence and dissemination of bacterial pathogens in largemouth bass culture accelerate the desire for new treatment measures. Antimicrobial peptides as the host's antimicrobial source dominate the preferred molecules for discovering antibacterial agents. Here, the potential of Hepcidin-1 from largemouth bass (Micropterus salmoides) (MsHep-1) against bacterial infection is demonstrated. MsHep-1 not only improved the survival rate in infection experiments involving Nocardia seriolae (12 %) and Aeromonas hydrophila (18 %) but also coped with iron overload conditions in vivo. Moreover, the antibacterial activity of MsHep-1 in vitro was identified against both gram-negative and gram-positive bacteria. Mechanistic studies show MsHep-1 leads to bacterial death by changing the bacterial membrane potential and disrupting the bacterial membrane structure. These findings demonstrate that MsHep-1 may play an important role in the host response to bacterial infection. It provides promising strategies in the application of immunosuppression prevention and control in fish. AMPs may be a promising and available reservoir for treating the current bacterial diseases.
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Affiliation(s)
- Weixiang Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bo Li
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ruying Yu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wenyan Xu
- College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, China
| | - Xiaoling Liu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jianguo Su
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Gailing Yuan
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
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Tunçer Çağlayan S, Gurbanov R. Modulation of bacterial membranes and cellular macromolecules by dimethyl sulfoxide: A dose-dependent study providing novel insights. Int J Biol Macromol 2024; 267:131581. [PMID: 38615866 DOI: 10.1016/j.ijbiomac.2024.131581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Using Escherichia coli as a model, this manuscript delves into the intricate interactions between dimethyl sulfoxide (DMSO) and membranes, cellular macromolecules, and the effects on various aspects of bacterial physiology. Given DMSO's wide-ranging use as a solvent in microbiology, we investigate the impacts of both non-growth inhibitory (1.0 % and 2.5 % v/v) and slightly growth-inhibitory (5.0 % v/v) concentrations of DMSO. The results demonstrate that DMSO causes alterations in bacterial membrane potential, influences the electrochemical characteristics of the cell surface, and exerts substantial effects on the composition and structure of cellular biomolecules. Genome-wide gene expression data from DMSO-treated E. coli was used to further investigate and bolster the results. The findings of this study provide valuable insights into the complex relationship between DMSO and biological systems, with potential implications in drug delivery and cellular manipulation. However, it is essential to exercise caution when utilizing DMSO to enhance the solubility and delivery of bioactive compounds, as even at low concentrations, DMSO exerts non-inert effects on cellular macromolecules and processes.
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Affiliation(s)
- Sinem Tunçer Çağlayan
- Vocational School of Health Services, Department of Medical Services and Techniques, Bilecik Şeyh Edebali University, 11100 Bilecik, Turkey.
| | - Rafig Gurbanov
- Department of Bioengineering, Bilecik Şeyh Edebali University, 11100 Bilecik, Turkey; Central Research Laboratory, Bilecik Şeyh Edebali University, 11100 Bilecik, Turkey
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9
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Monroy Caltzonci D, Rasu Chettiar AD, Ibarra VC, Marasamy L, Loredo-Tovías M, Acosta-Torres LS, Manisekaran R. Antimicrobial and Cytotoxic Effect of Positively Charged Nanosilver-Coated Silk Sutures. ACS OMEGA 2024; 9:17636-17645. [PMID: 38645349 PMCID: PMC11025086 DOI: 10.1021/acsomega.4c01257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/16/2024] [Accepted: 03/28/2024] [Indexed: 04/23/2024]
Abstract
Sutures are a crucial component of surgical procedures, serving to close and stabilize wound margins to promote healing. However, microbial contamination of sutures can increase the risk of surgical site infections (SSI) due to colonization by pathogens. This study aimed to tackle SSI by synthesizing positively charged silver nanoparticles (P-AgNPs) and using them to produce antimicrobial sutures. The P-AgNPs were reduced and stabilized using polyethylenimine (PEI), a cationic branched polymer. The physiochemical characteristics of P-AgNPs were confirmed from the surface plasmon resonance (SPR) peak at 419 nm, spherical morphology with a particle size range of 8-10 nm, PEI functional groups on NPs, a hydrodynamic diameter of 12.3 ± 2.4 nm, and a zeta potential of 31.3 ± 6 mV. Subsequently, the surfaces of silk sutures were impregnated with P-AgNPs at different time intervals (24, 48, and 96 h) using an ex situ method. Scanning electron microscopy (SEM) and tensile strength studies were conducted to determine the coating and durability of the NP-coated sutures. The NPs were quantified on sutures using inductively coupled plasma optical emission spectrophotometry (ICP-OES), which was in the range of 1-5 μg. Primarily, antimicrobial activity was studied using three microorganisms (Candida albicans, Streptococcus mutans, and Staphylococcus aureus) for both P-AgNPs and suture-coated P-AgNPs using the agar diffusion method. The results showed that only the NPs and NP-coated sutures exhibited enhanced antimicrobial effects against bacteria and fungi. Finally, the cytotoxicity of the sutures was investigated using stem cells from the apical papilla (SCAPs) for 24 h, which exhibited more than 75% cell viability. Overall, the results indicate that NP-coated sutures can potentially be used as antimicrobial sutures to diminish or inhibit SSI in postoperative or general surgery patients.
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Affiliation(s)
- Diego
Antonio Monroy Caltzonci
- Interdisciplinary
Research Laboratory (LII), Nanostructures and Biomaterials Area, Escuela
Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Predio el Saucillo y el Potrero,
Comunidad de los Tepetates, 37689 León, Mexico
| | - Aruna-Devi Rasu Chettiar
- Facultad
de Química, Materiales-Energía, Universidad Autónoma de Querétaro, 76010 Querétaro, Mexico
| | - Verónica Campos Ibarra
- Interdisciplinary
Research Laboratory (LII), Nanostructures and Biomaterials Area, Escuela
Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Predio el Saucillo y el Potrero,
Comunidad de los Tepetates, 37689 León, Mexico
| | - Latha Marasamy
- Facultad
de Química, Materiales-Energía, Universidad Autónoma de Querétaro, 76010 Querétaro, Mexico
| | - Marcos Loredo-Tovías
- Área
de Ciencias de la Tierra, Facultad de Ingeniería,UASLP, Av. Manuel Nava no.8, Zona Universitaria, 78290 San Luis Potosí, Mexico
| | - Laura Susana Acosta-Torres
- Interdisciplinary
Research Laboratory (LII), Nanostructures and Biomaterials Area, Escuela
Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Predio el Saucillo y el Potrero,
Comunidad de los Tepetates, 37689 León, Mexico
| | - Ravichandran Manisekaran
- Interdisciplinary
Research Laboratory (LII), Nanostructures and Biomaterials Area, Escuela
Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Predio el Saucillo y el Potrero,
Comunidad de los Tepetates, 37689 León, Mexico
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10
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Grzywaczyk A, Smułek W, Kaczorek E. Saponaria officinalis saponins as a factor increasing permeability of Candida yeasts' biomembrane. World J Microbiol Biotechnol 2024; 40:152. [PMID: 38553646 DOI: 10.1007/s11274-024-03961-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 03/18/2024] [Indexed: 04/02/2024]
Abstract
Saponins are a large group of compounds, produced mostly by plants as a side product of their metabolic activity. These compounds have attracted much attention over the years mostly because of their surface activity and antibacterial, anti-inflammatory and antifungal properties. On the other hand, most of the hitherto research has concerned the action of saponins against microbial cells as a whole. Therefore, knowing the possible interaction of saponins with biomembrane, we decided to check in-vitro the influence of saponin-rich extract of Saponaria officinalis on spheroplasts of two Candida sp. The obtained results show that 10 mg L- 1 of extract increased the permeability of spheroplasts up to 21.76% relative to that of the control sample. Moreover, the evaluation of surface potential has revealed a decrease by almost 10 mV relative to that of the untreated samples. Such results suggest its direct correlation to integration of saponins into the biomembrane structure. The obtained results have proved the antifungal potential of saponins and their ability of permeabilization of cells. This proves the high potential of saponins use as additives to antifungal pharmaceutics, which is expected to lead to improvement of their action or reduction of required dosage.
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Affiliation(s)
- Adam Grzywaczyk
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, Poznan, 60-695, Poland.
| | - Wojciech Smułek
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, Poznan, 60-695, Poland
| | - Ewa Kaczorek
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, Poznan, 60-695, Poland
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11
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Czerkas K, Olchowik-Grabarek E, Łomanowska M, Abdulladjanova N, Sękowski S. Antibacterial Activity of Plant Polyphenols Belonging to the Tannins against Streptococcus mutans-Potential against Dental Caries. Molecules 2024; 29:879. [PMID: 38398630 PMCID: PMC10892310 DOI: 10.3390/molecules29040879] [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: 01/11/2024] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Dental caries (DC) is the most common oral pathology. The main bacteria responsible for DC is Streptococcus mutans. One of the strategies that can decrease or eliminate the risk of DC development is using compounds that will inhibit both the growth and virulence factors of S. mutans. Tannins are plant polyphenols that have strong antibacterial activity. The purpose of this study was to assess the antibacterial activity of three tannins against S. mutans. In this investigation, microbiological tests (MIC and MBC) and physicochemical techniques like the fluorescence measurements of tannins' interaction with S. mutans cell membrane and membrane proteins, zeta potential, and thermodynamic analyses were used to obtain knowledge about the antibacterial potential of the investigated compounds against S. mutans as well as about the mechanisms associated with antibacterial activity. The obtained results demonstrate that the used compounds exhibit high antibacterial activity against S. mutans. The mechanisms of their antibacterial activity are linked to the strong change in the S. mutans membrane fluidity and potential, and to their interaction with membrane proteins that can result in great disturbance of bacterial physiology and ultimately the inhibition of bacterial growth, triggering their death. Therefore, it can be concluded that the investigated compounds can be potentially used as natural factors in the prevention of dental caries.
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Affiliation(s)
- Krzysztof Czerkas
- Doctoral School of Exact and Natural Sciences, University of Bialystok, 15-254 Bialystok, Poland
| | - Ewa Olchowik-Grabarek
- Laboratory of Molecular Biophysics, Department of Microbiology and Biotechnology, Faculty of Biology, University of Bialystok, 15-254 Bialystok, Poland; (M.Ł.); (S.S.)
| | - Magdalena Łomanowska
- Laboratory of Molecular Biophysics, Department of Microbiology and Biotechnology, Faculty of Biology, University of Bialystok, 15-254 Bialystok, Poland; (M.Ł.); (S.S.)
| | - Nodira Abdulladjanova
- Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent 100143, Uzbekistan;
| | - Szymon Sękowski
- Laboratory of Molecular Biophysics, Department of Microbiology and Biotechnology, Faculty of Biology, University of Bialystok, 15-254 Bialystok, Poland; (M.Ł.); (S.S.)
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12
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Zhang X, Ma P, Ismail BB, Yang Z, Zou Z, Suo Y, Ye X, Liu D, Guo M. Chickpea-Derived Modified Antimicrobial Peptides KTA and KTR Inactivate Staphylococcus aureus via Disrupting Cell Membrane and Interfering with Peptidoglycan Synthesis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:2727-2740. [PMID: 38289163 DOI: 10.1021/acs.jafc.3c08241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The widespread bacterial contamination caused by foodborne pathogens has continuously driven the development of advanced and potent food antimicrobial agents. In this study, two novel antimicrobial peptides (AMPs) named KTA and KTR were obtained by modifying a natural AMP, Leg2, from chickpea storage protein legumin hydrolysates. They were further predicted to be stable hydrophobic cationic AMPs of α-helical structure with no hemolytic toxicity by several online servers. Moreover, the AMPs exerted superior antibacterial activity against two representative Staphylococcus aureus strains thanks to the increased hydrophobicity and positive charge, with minimum inhibition concentration value (4.74-7.41 μM) significantly lower than that of Leg2 (>1158.70 μM). Further, this study sought to elucidate the specific antimicrobial mechanism against Gram-positive bacteria. It was found that the electrostatic interactions of the AMPs with peptidoglycan were vital for peptide activity in combating Gram-positive bacteria. Subsequently, the cell membrane of S. aureus cells was irreversibly disrupted by increasing permeability and impairing membrane components, which led to the massive release of intracellular substances and eventual cell death. Overall, this work demonstrated that KTA and KTR were active against Gram-positive bacteria via peptidoglycan targeting and membrane-disruptive mechanisms and paved the way for expanding their application potential to alleviate food contamination.
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Affiliation(s)
- Xinhui Zhang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
| | - Peipei Ma
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
| | - Balarabe B Ismail
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
| | - Zhehao Yang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
| | - Zhipeng Zou
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
| | - Yujuan Suo
- Laboratory of Quality and Safety Risk Assessment for Agro-products of Ministry of Agriculture and Rural Affairs, Institute for Agro-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
| | - Donghong Liu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
| | - Mingming Guo
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang University, Hangzhou 310058, China
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13
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Cottet J, Oshodi JO, Yebouet J, Leang A, Furst AL, Buie CR. Zeta potential characterization using commercial microfluidic chips. LAB ON A CHIP 2024; 24:234-243. [PMID: 38050677 DOI: 10.1039/d3lc00825h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Surface charge is a critical feature of microbes that affects their interactions with other cells and their environment. Because bacterial surface charge is difficult to measure directly, it is typically indirectly inferred through zeta potential measurements. Existing tools to perform such characterization are either costly and ill-suited for non-spherical samples or rely on microfluidic techniques requiring expensive fabrication equipment or specialized facilities. Here, we report the application of commercially available PMMA microfluidic chips and open-source data analysis workflows for facile electrokinetic characterization of particles and cells after prior zeta potential measurement with a Zetasizer for calibration. Our workflows eliminate the need for microchannel fabrication, increase measurement reproducibility, and make zeta potential measurements more accessible. This novel methodology was tested with functionalized 1 μm and 2 μm polystyrene beads as well as Escherichia coli MG1655 strain. Measured zeta potentials for these samples were in agreement with literature values obtained by conventional measurement methods. Taken together, our data demonstrate the power of this workflow to broadly enable critical measurements of particle and bacterial zeta potential for numerous applications.
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Affiliation(s)
- Jonathan Cottet
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Josephine O Oshodi
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Jesse Yebouet
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Andrea Leang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Ariel L Furst
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Cullen R Buie
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
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14
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Abdullah SJ, Mu Y, Bhattacharjya S. Structures, Interactions and Activity of the N-Terminal Truncated Variants of Antimicrobial Peptide Thanatin. Antibiotics (Basel) 2024; 13:74. [PMID: 38247633 PMCID: PMC10812785 DOI: 10.3390/antibiotics13010074] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
Gram-negative bacteria are intrinsically more resistant to many frontline antibiotics, which is attributed to the permeability barrier of the outer membrane, drug efflux pumps and porins. Consequently, discovery of new small molecules antibiotics to kill drug-resistant Gram-negative bacteria presents a significant challenge. Thanatin, a 21-residue insect-derived antimicrobial peptide, is known for its potent activity against Enterobacter Gram-negative bacteria, including drug-resistant strains. Here, we investigated a 15-residue N-terminal truncated analog PM15 (P1IIYCNRRTGKCQRM15) of thanatin to determine modes of action and antibacterial activity. PM15 and the P1 to Y and A substituted variants PM15Y and PM15A delineated interactions and permeabilization of the LPS-outer membrane. In antibacterial assays, PM15 and the analogs showed growth inhibition of strains of Gram-negative bacteria that is largely dependent on the composition of the culture media. Atomic-resolution structures of PM15 and PM15Y in free solution and in complex with LPS micelle exhibited persistent β-hairpin structures similar to native thanatin. However, in complex with LPS, the structures of peptides are more compact, with extensive packing interactions among residues across the two anti-parallel strands of the β-hairpin. The docked complex of PM15/LPS revealed a parallel orientation of the peptide that may be sustained by potential ionic and van der Waals interactions with the lipid A moiety of LPS. Further, PM15 and PM15Y bind to LptAm, a monomeric functional variant of LptA, the periplasmic component of the seven-protein (A-G) complex involved in LPS transport. Taken together, the structures, target interactions and antibacterial effect of PM15 presented in the current study could be useful in designing thanatin-based peptide analogs.
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Affiliation(s)
| | | | - Surajit Bhattacharjya
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore; (S.J.A.); (Y.M.)
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15
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Salas-Tovar JA, Escobedo-García S, Olivas GI, Acosta-Muñiz CH, Harte F, Sepulveda DR. The MATH test. A three-phase assay? FEMS Microbiol Lett 2024; 371:fnae045. [PMID: 38866708 DOI: 10.1093/femsle/fnae045] [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: 01/16/2024] [Revised: 05/09/2024] [Accepted: 06/11/2024] [Indexed: 06/14/2024] Open
Abstract
This study aimed to investigating the possible interference caused by glass test tubes on the quantification of bacterial adhesion to hydrocarbons by the MATH test. The adhesion of four bacteria to hexadecane and to glass test tubes was evaluated employing different suspending polar phases. The role of the ionic strength of the polar phase regarding adhesion to glassware was investigated. Within the conditions studied, Gram-positive bacteria adhered to both the test tube and the hydrocarbon regardless of the polar phase employed; meanwhile, Escherichia coli ATCC 25922 did not attach to either one. The capacity of the studied microorganisms to adhere to glassware was associated with their electron-donor properties. The ionic strength of the suspending media altered the patterns of adhesion to glass in a strain-specific manner by defining the magnitude of electrostatic repulsion observed between bacteria and the glass surface. This research demonstrated that glass test tubes may interact with suspended bacterial cells during the MATH test under specific conditions, which may lead to overestimating the percentage of adhesion to hydrocarbons and, thus, to erroneous values of cell surface hydrophobicity.
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Affiliation(s)
- Jesús A Salas-Tovar
- Centro de Investigación en Alimentación y Desarrollo, Ave. Río Conchos S/N, Parque Industrial, Cd. Cuauhtémoc, Chihuahua 31570, Mexico
| | - Sarai Escobedo-García
- Centro de Investigación en Alimentación y Desarrollo, Ave. Río Conchos S/N, Parque Industrial, Cd. Cuauhtémoc, Chihuahua 31570, Mexico
| | - Guadalupe I Olivas
- Centro de Investigación en Alimentación y Desarrollo, Ave. Río Conchos S/N, Parque Industrial, Cd. Cuauhtémoc, Chihuahua 31570, Mexico
| | - Carlos H Acosta-Muñiz
- Centro de Investigación en Alimentación y Desarrollo, Ave. Río Conchos S/N, Parque Industrial, Cd. Cuauhtémoc, Chihuahua 31570, Mexico
| | - Federico Harte
- Department of Food Science, The Pennsylvania State University, 331 Rodney A. Erickson Food Science Building University Park, PA 16802, United States
| | - David R Sepulveda
- Centro de Investigación en Alimentación y Desarrollo, Ave. Río Conchos S/N, Parque Industrial, Cd. Cuauhtémoc, Chihuahua 31570, Mexico
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16
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Liu M, Zhang L, Yang R, Cui H, Li Y, Li X, Huang H. Integrating metal-organic framework ZIF-8 with green modifier empowered bacteria with improved bioremediation. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132475. [PMID: 37714005 DOI: 10.1016/j.jhazmat.2023.132475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/02/2023] [Accepted: 09/02/2023] [Indexed: 09/17/2023]
Abstract
Suspended microorganisms often experience diminished efficacy in the bioremediation of polycyclic aromatic hydrocarbons (PAHs). In this study, the potential of zeolite imidazolate framework-8 (ZIF-8) and the eco-friendly modifier citric acid (CA) was harnessed to generate a biomimetic mineralized protective shell on the surface of Bacillus subtilis ZL09-26, resulting in an enhanced capability for PAH degradation. This investigation encompassed the integrated responses of B. subtilis ZL09-26 to ZIF-8 and ZIF-8-CA at both cellular and proteomic levels. The amalgamation of ZIF-8 and CA not only stimulated the growth and bolstered the cell viability of B. subtilis ZL09-26, but also counteracted the toxic effects of phenanthrene (PHE) stress. Remarkably, the bioremediation prowess of B. subtilis ZL09-26@ZIF-8-CA surpassed that of ZL09-26@ZIF-8 and ZL09-26, achieving a PHE removal rate of 94.14 % within 6 days. After undergoing five cycles, ZL09-26@ZIF-8-CA demonstrated an enduring PHE removal rate exceeding 83.31 %. A complex interplay of various metabolic pathways orchestrated cellular responses, enhancing PHE transport and degradation. These pathways encompassed direct PHE biodegradation, central carbon metabolism, oxidative phosphorylation, purine metabolism, and aminoacyl-tRNA biosynthesis. This study not only extends the potential applications of biomineralized organisms but also offers alternative strategies for effective contaminant management.
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Affiliation(s)
- Mina Liu
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
| | - Lei Zhang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China
| | - Rongrong Yang
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
| | - Haiyang Cui
- RWTH Aachen University, Templergraben 55, 52062 Aachen, Germany
| | - Yanan Li
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
| | - Xiujuan Li
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China.
| | - He Huang
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
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17
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Pius Bassey A, Pei Liu P, Chen J, Kabir Bako H, Frimpong Boateng E, Isaiah Ibeogu H, Ye K, Li C, Zhou G. Antibacterial efficacy of phenyllactic acid against Pseudomonas lundensis and Brochothrix thermosphacta and its synergistic application on modified atmosphere/air-packaged fresh pork loins. Food Chem 2024; 430:137002. [PMID: 37524609 DOI: 10.1016/j.foodchem.2023.137002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 06/24/2023] [Accepted: 07/23/2023] [Indexed: 08/02/2023]
Abstract
Microbial contamination is a crucial problem that is difficult to solve for the meat industry. Therefore, this study explored the antibacterial efficacy of phenyllactic acid (PLA) against Pseudomonas lundensis (PL) and Brochothrix thermosphacta (BT) solely and in combination (PL + BT). It also provided insights into its synergistic preservation effect during inoculation in chilled (4 °C) fresh pork loins under air (AP) and modified atmosphere packaging (MAP). The minimum inhibitory concentration (MIC) of PLA was 10 mg/mL. Growth kinetics, scanning electron microscopy (SEM), zeta potential, and cell viability investigations showed that PLA treatment exhibited reduced bacterial growth, aided morphological alterations, and leakage in cell membrane integrity in vitro. Nonetheless, PLA and MAP (70 %N2/30 %CO2) showed an excellent synergistic antibacterial ability against spoilage indicators(total glucose, pH, TVB-N, and TBARS), bacterial counts than AP, without impairing organoleptic acceptability. These results demonstrate the broad antibacterial efficacy of PLA as a biopreservative for the meat industry.
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Affiliation(s)
- Anthony Pius Bassey
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China
| | - Pei Pei Liu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China
| | - Jiahui Chen
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China
| | - Hadiza Kabir Bako
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China
| | - Evans Frimpong Boateng
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China
| | - Henry Isaiah Ibeogu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China
| | - Keping Ye
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China
| | - Chunbao Li
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China.
| | - Guanghong Zhou
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, PR China; Key Laboratory of Meat Processing, MARA, PR China; Jiangsu Collaborative Innovation Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, 210095 Nanjing, Jiangsu, PR China.
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18
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Lv M, Wang K, Liang X, Chen Y, Tang X, Liu R, Chen W. Principle of CoS 2/ZnIn 2S 4 heterostructure effect and its mechanism of action in a visible light-catalyzed antibacterial process. J Colloid Interface Sci 2024; 653:879-893. [PMID: 37774652 DOI: 10.1016/j.jcis.2023.09.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/01/2023] [Accepted: 09/19/2023] [Indexed: 10/01/2023]
Abstract
The development of visible-light-driven catalytic antimicrobial technology is a significant challenge. In this study, heterojunctions were constructed for the appropriate modification of semiconductor-based photocatalysts. A simple hydrothermal method was used for material reconstruction, and smaller CoS2 nanoparticles were deposited and in situ grown on two-dimensional nanoflower-like ZnIn2S4 carriers to form CoS2/ZnIn2S4 (CS/ZIS) Schottky heterojunctions. Systematic study via characterization techniques and density functional theory calculations indicated that the excellent photocatalytic activity of CS/ZIS stemmed from the solid interfacial coupling between the two solid-phase materials. These materials acted as co-catalysts to increase the number of active reaction sites, enhance charge transfer, drive unidirectional electron movement, and improve charge separation efficiency, which effectively facilitated the production of reactive oxygen species (ROS). The optimized CS/ZIS heterojunction exhibited excellent performance for the efficient photocatalytic degradation of organic matter and inactivation of Escherichia coli (E. coli) compared with the ZnIn2S4 photocatalyst. Moreover, the antibacterial mechanism of the heterojunction photocatalyst and the extent of damage to the cell membrane and internal cytoplasm were explored by performing various assays. It was demonstrated that superoxide radicals are the predominant active species and multiple ROS act together to cause oxidative stress damage and cell inactivation.
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Affiliation(s)
- Meiru Lv
- Faculty of Chemical Engineering Kunming University of Science and Technology, Kunming 650500, Yunnan, China.
| | - Kangfu Wang
- Faculty of Chemical Engineering Kunming University of Science and Technology, Kunming 650500, Yunnan, China.
| | - Xingkun Liang
- Faculty of Chemical Engineering Kunming University of Science and Technology, Kunming 650500, Yunnan, China.
| | - Yuanyuan Chen
- Faculty of Chemical Engineering Kunming University of Science and Technology, Kunming 650500, Yunnan, China.
| | - Xiaoning Tang
- Faculty of Chemical Engineering Kunming University of Science and Technology, Kunming 650500, Yunnan, China.
| | - Rongliang Liu
- Zhuhai Painter Science and Technology Co., LTD., Zhuhai, 519090, Guangdong, China.
| | - Wei Chen
- Zhuhai Painter Science and Technology Co., LTD., Zhuhai, 519090, Guangdong, China.
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19
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Soares RS, Gomes D, Serrano I, Cunha E, Tavares L, Oliveira M. Absence of Synergism between a Dual-AMP Biogel and Antibiotics Used as Therapeutic Agents for Diabetic Foot Infections. Int J Mol Sci 2023; 25:407. [PMID: 38203579 PMCID: PMC10779294 DOI: 10.3390/ijms25010407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/19/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Diabetic foot infections (DFIs) are frequently linked to diabetic-related morbidity and death because of the ineffectiveness of conventional antibiotics against multidrug-resistant bacteria. Pexiganan and nisin A are antimicrobial peptides (AMPs), and their application may complement conventional antibiotics in DFI treatment. A collagen 3D model, previously established to mimic a soft-tissue collagen matrix, was used to evaluate the antibacterial efficacy of a guar gum gel containing pexiganan and nisin alone and combined with three antimicrobials toward the biofilms of Staphylococcus aureus and Pseudomonas aeruginosa isolated from infected foot ulcers. Antimicrobials and bacterial diffusion were confirmed by spot-on-lawn and bacterial growth by bacterial count (cfu/mL). Our main conclusion was that the dual-AMP biogel combined with gentamicin, clindamycin, or vancomycin was not able to significantly reduce bacterial growth or eradicate S. aureus and P. aeruginosa DFI isolates. We further reported an antagonism between dual-AMP and dual-AMP combined with antibiotics against S. aureus.
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Affiliation(s)
- Rui Silva Soares
- CIISA—Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal; (R.S.S.); (D.G.); (E.C.); (L.T.); (M.O.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Diana Gomes
- CIISA—Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal; (R.S.S.); (D.G.); (E.C.); (L.T.); (M.O.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Isa Serrano
- CIISA—Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal; (R.S.S.); (D.G.); (E.C.); (L.T.); (M.O.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Eva Cunha
- CIISA—Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal; (R.S.S.); (D.G.); (E.C.); (L.T.); (M.O.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Luís Tavares
- CIISA—Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal; (R.S.S.); (D.G.); (E.C.); (L.T.); (M.O.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Manuela Oliveira
- CIISA—Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal; (R.S.S.); (D.G.); (E.C.); (L.T.); (M.O.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- cE3c—Centre for Ecology, Evolution and Environmental Changes & CHANGE—Global Change and Sustainability Institute, Campo Grande 016, 1749-016 Lisbon, Portugal
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20
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Hackemann VCJ, Hagel S, Jandt KD, Rödel J, Löffler B, Tuchscherr L. The Controversial Effect of Antibiotics on Methicillin-Sensitive S. aureus: A Comparative In Vitro Study. Int J Mol Sci 2023; 24:16308. [PMID: 38003500 PMCID: PMC10671744 DOI: 10.3390/ijms242216308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/06/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Methicillin-sensitive Staphylococcus (S.) aureus (MSSA) bacteremia remains a global challenge, despite the availability of antibiotics. Primary treatments include β-lactam agents such as cefazolin and flucloxacillin. Ongoing discussions have focused on the potential synergistic effects of combining these agents with rifampicin or fosfomycin to combat infections associated with biofilm formation. Managing staphylococcal infections is challenging due to antibacterial resistance, biofilms, and S. aureus's ability to invade and replicate within host cells. Intracellular invasion shields the bacteria from antibacterial agents and the immune system, often leading to incomplete bacterial clearance and chronic infections. Additionally, S. aureus can assume a dormant phenotype, known as the small colony variant (SCV), further complicating eradication and promoting persistence. This study investigated the impact of antibiotic combinations on the persistence of S. aureus 6850 and its stable small colony variant (SCV strain JB1) focusing on intracellular survival and biofilm formation. The results from the wild-type strain 6850 demonstrate that β-lactams combined with RIF effectively eliminated biofilms and intracellular bacteria but tend to select for SCVs in planktonic culture and host cells. Higher antibiotic concentrations were associated with an increase in the zeta potential of S. aureus, suggesting reduced membrane permeability to antimicrobials. When using the stable SCV mutant strain JB1, antibiotic combinations with rifampicin successfully cleared planktonic bacteria and biofilms but failed to eradicate intracellular bacteria. Given these findings, it is reasonable to report that β-lactams combined with rifampicin represent the optimal treatment for MSSA bacteremia. However, caution is warranted when employing this treatment over an extended period, as it may elevate the risk of selecting for small colony variants (SCVs) and, consequently, promoting bacterial persistence.
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Affiliation(s)
| | - Stefan Hagel
- Institute of Infectious Diseases and Infection Control, Jena University Hospital, 07747 Jena, Germany
| | - Klaus D Jandt
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena School for Microbial Communication (JSMC), 07743 Jena, Germany
| | - Jürgen Rödel
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
| | - Bettina Löffler
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
| | - Lorena Tuchscherr
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
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21
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Usala E, Espinosa E, El Arfaoui W, Morcillo-Martín R, Ferrari B, González Z. Antibacterial Aerogels-Based Membranes by Customized Colloidal Functionalization of TEMPO-Oxidized Cellulose Nanofibers Incorporating CuO. Bioengineering (Basel) 2023; 10:1312. [PMID: 38002436 PMCID: PMC10669038 DOI: 10.3390/bioengineering10111312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/03/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
An innovative colloidal approach is proposed here to carry out the customized functionalization of TEMPO-Oxidized Cellulose Nanofibers (CNF) incorporating non-noble inorganic nanoparticles. A heterocoagulation process is applied between the delignified CNF and as-synthetized CuO nanoparticles (CuO NPs) to formulate mixtures which are used in the preparation of aerogels with antibacterial effect, which could be used to manufacture membranes, filters, foams, etc. The involved components of formulated blending, CNF and CuO NPs, were individually obtained by using a biorefinery strategy for agricultural waste valorization, together with an optimized chemical precipitation, assisted by ultrasounds. The optimization of synthesis parameters for CuO NPs has avoided the presence of undesirable species, which usually requires later thermal treatment with associated costs. The aerogels-based structure, obtained by conventional freeze-drying, acted as 3D support for CuO NPs, providing a good dispersion within the cross-linked structure of the nanocellulose and facilitating direct contact of the antibacterial phase against undesirable microorganisms. All samples showed a positive response against Escherichia coli and Staphylococcus aureus. An increase of the antibacterial response of the aerogels, measured by agar disk diffusion test, has been observed with the increase of CuO NPs incorporated, obtaining the width of the antimicrobial "halo" (nwhalo) from 0 to 0.6 and 0.35 for S. aureus and E. coli, respectively. Furthermore, the aerogels have been able to deactivate S. aureus and E. coli in less than 5 h when the antibacterial assays have been analyzed by a broth dilution method. From CNF-50CuO samples, an overlap in the nanoparticle effect produced a decrease of the antimicrobial kinetic.
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Affiliation(s)
- Elena Usala
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
| | - Eduardo Espinosa
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
- Unidad Asociada CSIC-UCO, Fabricación Aditiva de Materiales Compuestos Basados en Celulosa Funcionalizada, Obtenida de Residuos de Biomasa, 14014 Córdoba, Spain;
| | - Wasim El Arfaoui
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
| | - Ramón Morcillo-Martín
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
| | - Begoña Ferrari
- Unidad Asociada CSIC-UCO, Fabricación Aditiva de Materiales Compuestos Basados en Celulosa Funcionalizada, Obtenida de Residuos de Biomasa, 14014 Córdoba, Spain;
- Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas (CSIC), Campus de Cantoblanco, c/Kelsen 5, 28049 Madrid, Spain
| | - Zoilo González
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
- Unidad Asociada CSIC-UCO, Fabricación Aditiva de Materiales Compuestos Basados en Celulosa Funcionalizada, Obtenida de Residuos de Biomasa, 14014 Córdoba, Spain;
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22
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Walling B, Bharali P, Ramachandran D, Viswanathan K, Hazarika S, Dutta N, Mudoi P, Manivannan J, Manjunath Kamath S, Kumari S, Vishwakarma V, Sorhie V, Gogoi B, Acharjee SA, Alemtoshi. In-situ biofabrication of bacterial nanocellulose (BNC)/graphene oxide (GO) nano-biocomposite and study of its cationic dyes adsorption properties. Int J Biol Macromol 2023; 251:126309. [PMID: 37573902 DOI: 10.1016/j.ijbiomac.2023.126309] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/29/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
In the present study, bacterial nanocellulose/graphene oxide nano-biocomposites (BNC-GO-NBCs) were fabricated by Komagataeibacter saccharivorans NUWB1 using an in-situ method involving three time-dependent approaches. Physicochemical studies showed that the chosen dried BNC-GO-NBC possessed a three-dimensional interconnected porous structure of BNC with GO layers embedded within the BNC fibrils. BNC-GO-NBC had a crystallinity index of 74.21 %, higher thermostability up to 380 °C and could withstand a tensile load of 84.72 MPa. N2 adsorption-desorption isotherm of the BNC-GO-NBC was found to be of type IV, suggesting a mesoporous type structure with a total pore volume and surface area of 6.232e-04 cc g-1 and 10.498 m2. BNC-GO-NBC exhibited remarkable adsorption capacity for two cationic dyes, Rhodamine B (RhB) and Acridine Orange (AO), and the adsorption data conformed well to the Langmuir isotherm (R2 = 0.99) and pseudo-second-order model. Thermodynamic studies indicated that the adsorption process was spontaneous and endothermic. Additionally, the BNC-GO-NBC displayed the potential for regeneration, with the ability to be recycled up to five times. Further, the antibacterial activity, cell cytotoxicity and oxidative stress assays of the BNC-GO-NBC revealed its non-cytotoxic nature. The findings of the present investigation evidently suggest the potentiality of BNC-GO-NBC in the application of dye adsorption and other environmental applications.
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Affiliation(s)
- Bendangtula Walling
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Pranjal Bharali
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India.
| | - D Ramachandran
- Centre for Nanoscience & Nanotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai 600119, Tamil Nadu, India
| | - K Viswanathan
- Centre for Nanoscience & Nanotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai 600119, Tamil Nadu, India
| | - Swapnali Hazarika
- Chemical Engineering Group, CSIR-North East Institute of Science & Technology, Jorhat 785006, Assam, India
| | - Nipu Dutta
- Department of Chemical Science, Tezpur University, Napaam, Tezpur 784028, Assam, India
| | - Pronab Mudoi
- Department of Molecular Biology & Biotechnology, Tezpur University, Napaam, Tezpur 784028, Assam, India
| | - Jeganathan Manivannan
- Environmental Health & Toxicology Laboratory, Department of Environmental Science, Bharathiar University, Tamil Nadu, India
| | - S Manjunath Kamath
- Centre for Nanoscience & Nanotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai 600119, Tamil Nadu, India
| | - Sony Kumari
- Department of Applied Biology, University of Science and Technology, Meghalaya, Ri Bhoi, Baridua 793101, India
| | - Vinita Vishwakarma
- Centre for Nanoscience and Nanotechnology, Galgotias University, Greater Noida, NCR Delhi, India
| | - Viphrezolie Sorhie
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Bhagyudoy Gogoi
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Shiva Aley Acharjee
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Alemtoshi
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
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23
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Xing H, Loya-Perez V, Franzen J, Denton PW, Conda-Sheridan M, Rodrigues de Almeida N. Designing peptide amphiphiles as novel antibacterials and antibiotic adjuvants against gram-negative bacteria. Bioorg Med Chem 2023; 94:117481. [PMID: 37776750 DOI: 10.1016/j.bmc.2023.117481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 10/02/2023]
Abstract
Gram-negative strains are intrinsically resistant to most antibiotics due to the robust and impermeable characteristic of their outer membrane. Self-assembling cationic peptide amphiphiles (PAs) have the ability to disrupt bacteria membranes, constituting an excellent antibacterial alternative to small molecule drugs that can be used alone or as antibiotic adjuvants to overcome bacteria resistance. PA1 (C16KHKHK), self-assembled into micelles, which exhibited low antibacterial activity against all strains tested, and showed strong synergistic antibacterial activity in combination with Vancomycin with a Fractional Inhibitory Concentration index (FICi) of 0.15 against E. coli. The molecules, PA2 (C16KRKR) and PA3 (C16AAAKRKR), also self-assembled into micelles, displayed a broad-spectrum antibacterial activity against all strains tested, and low susceptibility to resistance development over 21 days. Finally, PA1, PA 2 and PA3 displayed low cytotoxicity against mammalian cells, and PA2 showed a potent antibacterial activity and low toxicity in preliminary in vivo models using G. mellonella. The results show that PAs are a great platform for the future development of effective antibiotics to slow down the antibiotic resistance and can act as antibiotic adjuvants with synergistic mechanism of action, which can be repurposed for use with existing antibiotics commonly used to treat gram-positive bacteria to treat infections caused by gram-negative bacteria.
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Affiliation(s)
- Huihua Xing
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Vanessa Loya-Perez
- Department of Chemistry, University of Nebraska Omaha, Omaha, NE 68182, United States
| | - Joshua Franzen
- Department of Biology, University of Nebraska Omaha, Omaha, NE 68182, United States
| | - Paul W Denton
- Department of Biology, University of Nebraska Omaha, Omaha, NE 68182, United States
| | - Martin Conda-Sheridan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198, United States
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24
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Kromer C, Schwibbert K, Radunz S, Thiele D, Laux P, Luch A, Tschiche HR. ROS generating BODIPY loaded nanoparticles for photodynamic eradication of biofilms. Front Microbiol 2023; 14:1274715. [PMID: 37908542 PMCID: PMC10615615 DOI: 10.3389/fmicb.2023.1274715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/19/2023] [Indexed: 11/02/2023] Open
Abstract
Bacterial biofilms can pose a serious health risk to humans and are less susceptible to antibiotics and disinfection than planktonic bacteria. Here, a novel method for biofilm eradication based on antimicrobial photodynamic therapy utilizing a nanoparticle in conjunction with a BODIPY derivative as photosensitizer was developed. Reactive oxygen species are generated upon illumination with visible light and lead to a strong, controllable and persistent eradication of both planktonic bacteria and biofilms. One of the biggest challenges in biofilm eradication is the penetration of the antimicrobial agent into the biofilm and its matrix. A biocompatible hydrophilic nanoparticle was utilized as a delivery system for the hydrophobic BODIPY dye and enabled its accumulation within the biofilm. This key feature of delivering the antimicrobial agent to the site of action where it is activated resulted in effective eradication of all tested biofilms. Here, 3 bacterial species that commonly form clinically relevant pathogenic biofilms were selected: Escherichia coli, Staphylococcus aureus and Streptococcus mutans. The development of this antimicrobial photodynamic therapy tool for biofilm eradication takes a promising step towards new methods for the much needed treatment of pathogenic biofilms.
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Affiliation(s)
- Charlotte Kromer
- Department Chemicals and Product Safety, Product Materials and Nanotechnology, German Federal Institute for Risk Assessment, Berlin, Germany
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Karin Schwibbert
- Department Materials and the Environment, Biodeterioration and Reference Organisms, Federal Institute for Materials Research and Testing, Berlin, Germany
| | | | - Dorothea Thiele
- Department Materials and the Environment, Biodeterioration and Reference Organisms, Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Peter Laux
- Department Chemicals and Product Safety, Product Materials and Nanotechnology, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Andreas Luch
- Department Chemicals and Product Safety, Product Materials and Nanotechnology, German Federal Institute for Risk Assessment, Berlin, Germany
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Harald R. Tschiche
- Department Chemicals and Product Safety, Product Materials and Nanotechnology, German Federal Institute for Risk Assessment, Berlin, Germany
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25
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Luo K, Chen L, Zhao Y, Peng G, Chen Z, Chen Q. Transcriptomics uncover the response of an aerobic denitrifying bacteria to zinc oxide nanoparticles exposure. ENVIRONMENTAL TECHNOLOGY 2023; 44:3685-3697. [PMID: 35466863 DOI: 10.1080/09593330.2022.2069517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) show adverse impacts on aerobic denitrifying bacteria, little is known about the response of these bacteria to ZnO NPs exposure at cellular level. This study assessed the multiple responses of Pseudomonas aeruginosa PCN-2 under ZnO NPs exposure. We demonstrated that ZnO NPs exposure could inhibit the intracellular metabolism and stimulate the antioxidant defence capability of PCN-2. At lower exposure concentration (5 mg/L), exogenous ROS generated and resulted in the inhibition of pyruvate metabolism and citrate cycle, which caused deficient energy for aerobic denitrification. At higher concentrations (50 mg/L), endogenous ROS additionally generated and triggered to stronger down-regulation of oxidative phosphorylation, which caused suppressed electron transfers for aerobic denitrification. Meanwhile, ZnO NPs exposure promoted EPS production and biofilm formation, and antioxidases was especially particularly stimulated at higher concentration. Our findings are significant for understanding of microbial bacterial susceptibility, tolerance and resistance under the exposure of ZnO NPs.
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Affiliation(s)
- Kongyan Luo
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
- College of Environment and Resources, Dalian Minzu University, Dalian, PR People's Republic of China
| | - Long Chen
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
| | - Yuanyi Zhao
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
| | - Guyu Peng
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
| | - Zhaobo Chen
- College of Environment and Resources, Dalian Minzu University, Dalian, PR People's Republic of China
| | - Qian Chen
- College of Environmental Sciences and Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, PR People's Republic of China
- State Environmental Protection Key Laboratory of All Materials Flux in River Ecosystems, Beijing, People's Republic of China
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26
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Prinz Setter O, Jiang X, Segal E. Rising to the surface: capturing and detecting bacteria by rationally-designed surfaces. Curr Opin Biotechnol 2023; 83:102969. [PMID: 37494819 DOI: 10.1016/j.copbio.2023.102969] [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: 05/23/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 07/28/2023]
Abstract
Analytical microbiology has made substantial progress since its conception, starting from potato slices, through selective agar media, to engineered surfaces modified with capture probes. While the latter represents the dominant approach in designing sensors for bacteria detection, the importance of sensor surface properties is frequently ignored. Herein, we highlight their significant role in the complex process of bacterial transition from planktonic to sessile, representing the first and critical step in bacteria detection. We present the main surface features and discuss their effect on the bio-solid interface and the resulting sensing capabilities for both flat and particulate systems. The concepts of rationally-designed surfaces for enhanced bacterial detection are presented with recent examples of sensors (capture probe-free) relying solely on surface cues.
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Affiliation(s)
- Ofer Prinz Setter
- Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Technion City, 3200003 Haifa, Israel
| | - Xin Jiang
- Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Technion City, 3200003 Haifa, Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Technion City, 3200003 Haifa, Israel; The Russel Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Technion City, 3200003 Haifa, Israel.
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27
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Caliskan-Aydogan O, Sharief SA, Alocilja EC. Rapid Isolation of Low-Level Carbapenem-Resistant E. coli from Water and Foods Using Glycan-Coated Magnetic Nanoparticles. BIOSENSORS 2023; 13:902. [PMID: 37887095 PMCID: PMC10605215 DOI: 10.3390/bios13100902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/28/2023]
Abstract
Carbapenem-resistant Enterobacterales (CRE) are one of the major global issues needing attention. Among them, carbapenemase-producing (CP) E. coli strains are commonly found in clinical and biological samples. Rapid and cost-effective detection of such strains is critical in minimizing their deleterious impact. While promising progress is being made in rapid detection platforms, separation and enrichment of bacteria are required to ensure the detection of low bacterial counts. The current separation methods, such as centrifugation, filtration, electrophoresis, and immunomagnetic separation, are often tedious, expensive, or ineffective for clinical and biological samples. Further, the extraction and concentration of antimicrobial-resistant bacteria (ARB) are not well documented. Thus, this study assessed the applicability of cost-effective glycan-coated magnetic nanoparticles (gMNPs) for simple and rapid extraction of CP E. coli. The study included two resistant (R)strains: Klebsiella pneumoniae carbapenemase (KPC)-producing E. coli (R: KPC) and New Delhi metallo-β-lactamase (NDM)-producing E. coli (R: NDM). A susceptible E. coli (S) strain was used as a control, a reference bacterium. The gMNPs successfully extracted and concentrated E. coli (R) and E. coli (S) at low concentrations from large volumes of buffer solution, water, and food samples. The gMNPs concentrated up to two and five times their initial concentration for E. coli (R) and E. coli (S) in the buffer solution, respectively. In water and food samples, the concentration of E. coli (S) and E. coli (R) were similar and ranged 1-3 times their initial inoculation. A variation in the concentration from different food samples was seen, displaying the impact of food microstructure and natural microflora. The cost-effective and rapid bacterial cell capture by gMNPs was achieved in 15 min, and its successful binding to the bacterial cells in the buffer solution and food matrices was also confirmed using Transmission Electron Microscopy (TEM). These results show promising applications of gMNPs to extract pathogens and ARB from biological samples.
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Affiliation(s)
- Oznur Caliskan-Aydogan
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA; (O.C.-A.); (S.A.S.)
- Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA
| | - Saad Asadullah Sharief
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA; (O.C.-A.); (S.A.S.)
- Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA
| | - Evangelyn C. Alocilja
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA; (O.C.-A.); (S.A.S.)
- Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA
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28
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Han W, Camesano TA. LL37-Derived Fragments Improve the Antibacterial Potential of Penicillin G and Ampicillin against Methicillin-Resistant Staphylococcus aureus. Antibiotics (Basel) 2023; 12:1398. [PMID: 37760695 PMCID: PMC10525415 DOI: 10.3390/antibiotics12091398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 08/24/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) infections are a severe threat to public health. Antimicrobial peptides (AMPs) are novel and potential antimicrobials with specific antibacterial mechanisms. Our aim was to study the potential of LL37, FK16, and FK13 to enhance the anti-MRSA activity of antibiotics in vitro, particularly penicillin G and ampicillin. Our results showed that FK16 and FK13 have more synergistic inhibitory effects to MRSA strains when combined with penicillin G and ampicillin. In addition, AMPs exhibited strong membrane permeabilizing properties, and membrane permeabilizing effects can provide a possible explanation for the improved antibacterial effects of antibiotics, since permeabilizing AMPs have the potential to increase the access of antibiotics. To further study the electrostatic interactions among cationic AMPs with negatively charged bacteria, we measured the zeta potentials of three MRSA strains and also neutralized three MRSA strains with the addition of cationic AMPs. Further, we demonstrated the connection between membrane permeabilization and zeta potential neutralization. Finally, we treated MRSA strains with AMPs and characterized the MICs of penicillin G and ampicillin. FK16 was the most promising AMP among the three AMPs, since exposure to FK16 decreased the MICs of both penicillin G and ampicillin for all MRSA strains and also demonstrated more synergistic combinations when combined with antibiotics. AMP exposure and subsequent membrane permeabilization provide a possible pathway to re-sensitize drug-resistant bacteria to traditional antibiotics. Re-sensitization may help preserve the effectiveness of traditional antibiotics, thus providing a potential new strategy for fighting MRSA infections.
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Affiliation(s)
| | - Terri A. Camesano
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA;
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29
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Merghni A, Belmamoun AR, Urcan AC, Bobiş O, Lassoued MA. 1,8-Cineol (Eucalyptol) Disrupts Membrane Integrity and Induces Oxidative Stress in Methicillin-Resistant Staphylococcus aureus. Antioxidants (Basel) 2023; 12:1388. [PMID: 37507929 PMCID: PMC10376866 DOI: 10.3390/antiox12071388] [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: 06/08/2023] [Revised: 07/03/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Due to the increased emergence of drug-resistant bacteria, the declining efficiency of traditional antimicrobials has generated severe concerns in recent years. Subsequently, more interest in other antimicrobial agents from natural resources draws more attention as an alternative to conventional medications. This study investigated the bactericidal mechanism of monoterpene 1,8-cineol (eucalyptol), a major compound of various essential oils, against methicillin-resistant Staphylococcus aureus (MRSA). The antibacterial activity of 1,8-cineol was assessed by an MTT assay against clinical and reference MRSA strains. A cell membrane integrity test, followed by zeta potential (ZP) measurements, was performed to evaluate the disruption of the bacterial membrane integrity. Additionally, the cytotoxic effect of this molecule on MRSA bacteria was investigated by monitoring reactive oxygen species (ROS) generation, lipid peroxidation (MDA), and antioxidant enzyme activities (CAT and SOD). Regarding the anti-staphylococcal effect, the obtained results revealed the antibacterial efficacy of 1,8-cineol wherein the minimum inhibitory concentrations were equal to 7.23 mg/mL. Furthermore, it enhanced membrane permeability, with a 5.36-fold increase in nucleic acid and protein leakage as compared with untreated strains, along with the alteration of surface charge (ZP) in MRSA cells. The tested compound caused an increase in ROS generation reaching 17,462 FU and MDA production, reaching 9.56 μM/mg protein, in treated bacterial cells, along with a decrease in oxidative stress enzymes activities. Our findings suggest that 1,8-cineol has the ability to damage the membrane integrity and induce ROS-mediated oxidative stress in MRSA cells, leading to its antagonistic effect against this pathogen and consequently aiding in the reversal of antibiotic resistance.
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Affiliation(s)
- Abderrahmen Merghni
- Laboratory of Antimicrobial Resistance LR99ES09, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia
| | - Ahmed Reda Belmamoun
- Department of Agricultural Sciences, Faculty of Nature and Life Sciences, Djillali Liabes University, Sidi-Bel-Abbes 22000, Algeria
| | - Adriana Cristina Urcan
- Department of Microbiology and Immunology, Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Otilia Bobiş
- Department of Beekeeping and Sericulture, Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Mohamed Ali Lassoued
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Phamacy, University of Monastir, Monastir 5000, Tunisia
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Verduzco-Chavira K, Vallejo-Cardona AA, González-Garibay AS, Torres-González OR, Sánchez-Hernández IM, Flores-Fernández JM, Padilla-Camberos E. Antibacterial and Antibiofilm Activity of Chemically and Biologically Synthesized Silver Nanoparticles. Antibiotics (Basel) 2023; 12:1084. [PMID: 37508180 PMCID: PMC10376474 DOI: 10.3390/antibiotics12071084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 07/30/2023] Open
Abstract
Bacterial biofilms are a significant problem in the food industry, as they are difficult to eradicate and represent a threat to consumer health. Currently, nanoparticles as an alternative to traditional chemical disinfectants have garnered much attention due to their broad-spectrum antibacterial activity and low toxicity. In this study, silver nanoparticles (AgNPs) were synthesized by a biological method using a Jacaranda mimosifolia flower aqueous extract and by a chemical method, and the factors affecting both syntheses were optimized. The nanoparticles were characterized by Ultraviolet-visible (UV-Vis) spectrophotometry, Fourier-transform infrared spectroscopy (FTIR), Dynamic light scattering (DLS), X-ray diffraction (XRD), and Transmission electron microscopy (TEM) with a spherical and uniform shape. The antibacterial and antibiofilm formation activity was carried out on bacterial species of Pseudomonas aeruginosa and Staphylococcus aureus with the capacity to form biofilm. The minimum inhibitory concentration was 117.5 μg/mL for the chemical and 5.3 μg/mL for the biological nanoparticles. Both types of nanoparticles showed antibiofilm activity in the qualitative Congo red test and in the quantitative microplate test. Antibiofilm activity tests on fresh lettuce showed that biological nanoparticles decreased the population of S. aureus and P. aeruginosa by 0.63 and 2.38 logarithms, respectively, while chemical nanoparticles had little microbial reduction. In conclusion, the biologically synthesized nanoparticles showed greater antibiofilm activity. Therefore, these results suggest their potential application in the formulation of sanitizing products for the food and healthcare industries.
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Affiliation(s)
- Karen Verduzco-Chavira
- Department of Technological and Industrial Processes, ITESO, The Jesuit University of Guadalajara, Anillo Perif. Sur Manuel Gómez Morin 3838, Tlaquepaque 45604, Mexico
| | - Alba Adriana Vallejo-Cardona
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Angélica Sofía González-Garibay
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Omar Ricardo Torres-González
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Iván Moisés Sánchez-Hernández
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
| | - Jose Miguel Flores-Fernández
- Department of Biochemistry & Centre for Prions and Protein Folding Diseases, University of Alberta, 204 Brain and Aging Research Building, Edmonton, AB T6G 2M8, Canada
- Departamento de Investigación e Innovación, Universidad Tecnológica de Oriental, Oriental C.P., Puebla 75020, Mexico
| | - Eduardo Padilla-Camberos
- Medical and Pharmaceutical Biotechnology Unit, Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Av. Normalistas No. 800 Col. Colinas de la Normal, Guadalajara 44270, Mexico
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Cutro AC, Coria MS, Bordon A, Rodriguez SA, Hollmann A. Antimicrobial properties of the essential oil of Schinus areira (Aguaribay) against planktonic cells and biofilms of S. aureus. Arch Biochem Biophys 2023:109670. [PMID: 37336342 DOI: 10.1016/j.abb.2023.109670] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/30/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023]
Abstract
The essential oil (EO) of Schinus areira L. (Anacardiaceae) leaves has shown antibacterial activity against Staphylococcus aureus. In this study we aimed to unravel the mechanisms of its antibacterial action by using bacterial cells and model membranes. First, the integrity of S. aureus membrane was evaluated by fluorescence microscopy. It was observed an increase in the permeability of cells that was dependent on the EO concentration as well as the incubation time. For a deep evaluation of the action of the EO on the lipids, its effect on the membrane fluidity was evaluated on DMPC (1,2-dimyristoyl-sn-glycero-3-phosphocholine): DMPG (1,2-dimyristoyl-sn-glycero-3-phospho-1'-rac-glycerol) (5:1) liposomes by dynamic scattering light and by using Laurdan doped liposomes. The results indicate that EO produces changes in lipid membrane packing, increasing the fluidity, reducing the cooperative cohesive interaction between phospholipids and increasing access of water or the insertion of some components of the EO to the interior of the membrane. In addition, the potential effect of EO on intracellular targets, as the increase of cytosolic reactive oxygen species (ROS) and DNA damage, were evaluated. The EO was capable of increasing the production of ROS as well as inducing a partial degradation of DNA. Finally, the effect of EO on S. aureus biofilm was tested. These assays showed that EO was able to inhibit the biofilm formation, and also eradicate preformed biofilms. The results show, that the EO seems to have several bacterial targets involved in the antibacterial activity, from the bacterial membrane to DNA. Furthermore, the antibacterial action affects not only planktonic cells but also biofilms; reinforcing the potential application for this EO.
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Affiliation(s)
- Andrea C Cutro
- Laboratorio de Compuestos Bioactivos, CIBAAL, CONICET - Universidad Nacional de Santiago del Estero, Argentina; Facultad de Ciencias Médicas Universidad Nacional de Santiago del Estero, Argentina
| | - M Sumampa Coria
- INBIONATEC, CONICET- Universidad Nacional de Santiago del Estero, Argentina; Facultad de Agronomía y Agroindustrias Universidad Nacional de Santiago del Estero - CONICET, Argentina
| | - Anahi Bordon
- Laboratorio de Compuestos Bioactivos, CIBAAL, CONICET - Universidad Nacional de Santiago del Estero, Argentina
| | - Sergio A Rodriguez
- Facultad de Agronomía y Agroindustrias Universidad Nacional de Santiago del Estero - CONICET, Argentina
| | - Axel Hollmann
- Laboratorio de Compuestos Bioactivos, CIBAAL, CONICET - Universidad Nacional de Santiago del Estero, Argentina; Laboratorio de Microbiología Molecular Universidad Nacional de Quilmes, Argentina.
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Caliskan-Aydogan O, Alocilja EC. A Review of Carbapenem Resistance in Enterobacterales and Its Detection Techniques. Microorganisms 2023; 11:1491. [PMID: 37374993 PMCID: PMC10305383 DOI: 10.3390/microorganisms11061491] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Infectious disease outbreaks have caused thousands of deaths and hospitalizations, along with severe negative global economic impacts. Among these, infections caused by antimicrobial-resistant microorganisms are a major growing concern. The misuse and overuse of antimicrobials have resulted in the emergence of antimicrobial resistance (AMR) worldwide. Carbapenem-resistant Enterobacterales (CRE) are among the bacteria that need urgent attention globally. The emergence and spread of carbapenem-resistant bacteria are mainly due to the rapid dissemination of genes that encode carbapenemases through horizontal gene transfer (HGT). The rapid dissemination enables the development of host colonization and infection cases in humans who do not use the antibiotic (carbapenem) or those who are hospitalized but interacting with environments and hosts colonized with carbapenemase-producing (CP) bacteria. There are continuing efforts to characterize and differentiate carbapenem-resistant bacteria from susceptible bacteria to allow for the appropriate diagnosis, treatment, prevention, and control of infections. This review presents an overview of the factors that cause the emergence of AMR, particularly CRE, where they have been reported, and then, it outlines carbapenemases and how they are disseminated through humans, the environment, and food systems. Then, current and emerging techniques for the detection and surveillance of AMR, primarily CRE, and gaps in detection technologies are presented. This review can assist in developing prevention and control measures to minimize the spread of carbapenem resistance in the human ecosystem, including hospitals, food supply chains, and water treatment facilities. Furthermore, the development of rapid and affordable detection techniques is helpful in controlling the negative impact of infections caused by AMR/CRE. Since delays in diagnostics and appropriate antibiotic treatment for such infections lead to increased mortality rates and hospital costs, it is, therefore, imperative that rapid tests be a priority.
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Affiliation(s)
- Oznur Caliskan-Aydogan
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA;
- Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA
| | - Evangelyn C. Alocilja
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA;
- Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA
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Karunakaran G, Sudha KG, Ali S, Cho EB. Biosynthesis of Nanoparticles from Various Biological Sources and Its Biomedical Applications. Molecules 2023; 28:molecules28114527. [PMID: 37299004 DOI: 10.3390/molecules28114527] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023] Open
Abstract
In the last few decades, the broad scope of nanomedicine has played an important role in the global healthcare industry. Biological acquisition methods to obtain nanoparticles (NPs) offer a low-cost, non-toxic, and environmentally friendly approach. This review shows recent data about several methods for procuring nanoparticles and an exhaustive elucidation of biological agents such as plants, algae, bacteria, fungi, actinomycete, and yeast. When compared to the physical, chemical, and biological approaches for obtaining nanoparticles, the biological approach has significant advantages such as non-toxicity and environmental friendliness, which support their significant use in therapeutic applications. The bio-mediated, procured nanoparticles not only help researchers but also manipulate particles to provide health and safety. In addition, we examined the significant biomedical applications of nanoparticles, such as antibacterial, antifungal, antiviral, anti-inflammatory, antidiabetic, antioxidant, and other medical applications. This review highlights the findings of current research on the bio-mediated acquisition of novel NPs and scrutinizes the various methods proposed to describe them. The bio-mediated synthesis of NPs from plant extracts has several advantages, including bioavailability, environmental friendliness, and low cost. Researchers have sequenced the analysis of the biochemical mechanisms and enzyme reactions of bio-mediated acquisition as well as the determination of the bioactive compounds mediated by nanoparticle acquisition. This review is primarily concerned with collating research from researchers from a variety of disciplines that frequently provides new clarifications to serious problems.
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Affiliation(s)
- Gopalu Karunakaran
- Institute for Applied Chemistry, Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Kattakgoundar Govindaraj Sudha
- Department of Biotechnology, K. S. Rangasamy College of Arts and Science (Autonomous), Tiruchengode 637215, Tamil Nadu, India
| | - Saheb Ali
- Department of Periodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, Tamil Nadu, India
| | - Eun-Bum Cho
- Institute for Applied Chemistry, Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
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Pacholak A, Juzwa W, Zgoła-Grześkowiak A, Kaczorek E. Multi-faceted analysis of bacterial transformation of nitrofurantoin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162422. [PMID: 36863585 DOI: 10.1016/j.scitotenv.2023.162422] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/15/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Excessive presence of antibiotics and their residues can be dangerous to the natural environment. To reduce this negative effect, efficient strategies to remove them from the ecosystem are required. This study aimed to explore the potential of bacterial strains to degrade nitrofurantoin (NFT). Single strains isolated from contaminated areas, namely Stenotrophomonas acidaminiphila N0B, Pseudomonas indoloxydans WB, and Serratia marcescens ODW152 were employed in this study. Degradation efficiency and dynamic changes within the cells during NFT biodegradation were investigated. For this purpose, atomic force microscopy, flow cytometry, zeta potential, and particle size distribution measurements were applied. Serratia marcescens ODW152 showed the highest performance in removal of NFT (96 % in 28 days). The AFM images revealed modifications of cell shape and surface structure induced by NFT. Zeta potential showed significant variations during biodegradation. Cultures exposed to NFT had a broader size distribution than the control cultures due to increased cells agglomeration or aggregation. 1-Aminohydantoin and semicarbazide were detected as nitrofurantoin biotransformation products. They showed increased cytotoxicity toward bacteria as determined by spectroscopy and flow cytometry. Results of this study suggest that nitrofurantoin biodegradation leads to formation of stable transformation products that significantly affect the physiology and structure of bacterial cells.
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Affiliation(s)
- Amanda Pacholak
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Poznan, Poland.
| | - Wojciech Juzwa
- Department of Biotechnology and Food Microbiology, Faculty of Food Science, Poznan University of Life Sciences, Poznan, Poland
| | | | - Ewa Kaczorek
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Poznan, Poland
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35
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Fosca M, Streza A, Antoniac IV, Vadalà G, Rau JV. Ion-Doped Calcium Phosphate-Based Coatings with Antibacterial Properties. J Funct Biomater 2023; 14:jfb14050250. [PMID: 37233360 DOI: 10.3390/jfb14050250] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023] Open
Abstract
Ion-substituted calcium phosphate (CP) coatings have been extensively studied as promising materials for biomedical implants due to their ability to enhance biocompatibility, osteoconductivity, and bone formation. This systematic review aims to provide a comprehensive analysis of the current state of the art in ion-doped CP-based coatings for orthopaedic and dental implant applications. Specifically, this review evaluates the effects of ion addition on the physicochemical, mechanical, and biological properties of CP coatings. The review also identifies the contribution and additional effects (in a separate or a synergistic way) of different components used together with ion-doped CP for advanced composite coatings. In the final part, the effects of antibacterial coatings on specific bacteria strains are reported. The present review could be of interest to researchers, clinicians, and industry professionals involved in the development and application of CP coatings for orthopaedic and dental implants.
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Affiliation(s)
- Marco Fosca
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy
| | - Alexandru Streza
- Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei Street, District 6, 060042 Bucharest, Romania
| | - Iulian V Antoniac
- Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei Street, District 6, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei Street, District 5, 050094 Bucharest, Romania
| | - Gianluca Vadalà
- Laboratory of Regenerative Orthopaedics, Research Unit of Orthopaedic, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
- Operative Research Unit of Orthopaedics, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy
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36
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Ferreira AM, Vikulina A, Loughlin M, Volodkin D. How similar is the antibacterial activity of silver nanoparticles coated with different capping agents? RSC Adv 2023; 13:10542-10555. [PMID: 37021104 PMCID: PMC10068916 DOI: 10.1039/d3ra00917c] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/10/2023] [Indexed: 04/05/2023] Open
Abstract
Silver nanoparticles (AgNPs) represent one of the most commercialised metal nanomaterials, with an extensive number of applications that span from antimicrobial products to electronics. Bare AgNPs are very susceptible to aggregation, and capping agents are required for their protection and stabilisation. The capping agents can endow new characteristics which can either improve or deteriorate AgNPs (bio)activity. In the present work, five different capping agents were studied as stabilizing agents for AgNPs: trisodium citrate (citrate), polyvinylpyrrolidone (PVP), dextran (Dex), diethylaminoethyl-dextran (DexDEAE) and carboxymethyl-dextran (DexCM). The properties of the AgNPs were studied using a set of methods, including transmission electron microscopy, X-ray diffraction, thermogravimetric analysis and ultraviolet-visible and infrared spectroscopy. Coated and bare AgNPs were also tested against Escherichia coli, methicillin-resistance Staphylococcus aureus and Pseudomonas aeruginosa to analyse their capacity to suppress bacterial growth and eradicate biofilms of clinically relevant bacteria. The results showed that all the capping agents endow long-term stability for the AgNPs in water; however, when the AgNPs are in bacterial culture media, their stability is highly dependent on the capping agent properties due to the presence of electrolytes and charged macromolecules such as proteins. The results also showed that the capping agents have a substantial impact on the antibacterial activity of the AgNPs. The AgNPs coated with the Dex and DexCM were the most effective against the three strains, due to their better stability which resulted in the release of more silver ions, better interactions with the bacteria and diffusion into the biofilms. It is hypothesized that the antibacterial activity of capped AgNPs is governed by a balance between the AgNPs stability and their ability to release silver ions. Strong adsorption of capping agents like PVP on the AgNPs endows higher colloidal stability in culture media; however, it can decrease the rate of Ag+ release from the AgNPs and reduce the antibacterial performance. Overall, this work presents a comparative study between different capping agents on the properties and antibacterial activity of AgNPs, highlighting the importance of the capping agent in their stability and bioactivity.
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Affiliation(s)
- Ana M Ferreira
- School of Science and Technology, Department of Chemistry and Forensics, Nottingham Trent University Clifton Lane Nottingham NG11 8NS UK
| | - Anna Vikulina
- Bavarian Polymer Institute, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) Dr-Mack-Straße, 77 90762 Fürth Germany
| | - Michael Loughlin
- School of Science and Technology, Department of Chemistry and Forensics, Nottingham Trent University Clifton Lane Nottingham NG11 8NS UK
| | - Dmitry Volodkin
- School of Science and Technology, Department of Chemistry and Forensics, Nottingham Trent University Clifton Lane Nottingham NG11 8NS UK
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37
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Yu T, Fu Y, He J, Zhang J, Xianyu Y. Identification of Antibiotic Resistance in ESKAPE Pathogens through Plasmonic Nanosensors and Machine Learning. ACS NANO 2023; 17:4551-4563. [PMID: 36867448 DOI: 10.1021/acsnano.2c10584] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Antibiotic-resistant ESKAPE pathogens cause nosocomial infections that lead to huge morbidity and mortality worldwide. Rapid identification of antibiotic resistance is vital for the prevention and control of nosocomial infections. However, current techniques like genotype identification and antibiotic susceptibility testing are generally time-consuming and require large-scale equipment. Herein, we develop a rapid, facile, and sensitive technique to determine the antibiotic resistance phenotype among ESKAPE pathogens through plasmonic nanosensors and machine learning. Key to this technique is the plasmonic sensor array that contains gold nanoparticles functionalized with peptides differing in hydrophobicity and surface charge. The plasmonic nanosensors can interact with pathogens to generate bacterial fingerprints that alter the surface plasmon resonance (SPR) spectra of nanoparticles. In combination with machine learning, it enables the identification of antibiotic resistance among 12 ESKAPE pathogens in less than 20 min with an overall accuracy of 89.74%. This machine-learning-based approach allows for the identification of antibiotic-resistant pathogens from patients and holds great promise as a clinical tool for biomedical diagnosis.
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Affiliation(s)
- Ting Yu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Ying Fu
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310016, People's Republic of China
| | - Jintao He
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Jun Zhang
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310016, People's Republic of China
| | - Yunlei Xianyu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, People's Republic of China
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310016, People's Republic of China
- Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314100, People's Republic of China
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, People's Republic of China
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38
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Mejía-Méndez JL, López-Mena ER, Sánchez-Arreola E. Activities against Lung Cancer of Biosynthesized Silver Nanoparticles: A Review. Biomedicines 2023; 11:389. [PMID: 36830926 PMCID: PMC9953519 DOI: 10.3390/biomedicines11020389] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/22/2023] [Accepted: 01/26/2023] [Indexed: 02/03/2023] Open
Abstract
Nanomedicine is an interdisciplinary field where nanostructured objects are applied to treat or diagnose disease. Nanoparticles (NPs) are a special class of materials at nanometric scale that can be prepared from lipids, polymers, or noble metals through bottom-up approaches. Biological synthesis is a reliable, sustainable, and non-toxic bottom-up method that uses phytochemicals, microorganisms, and enzymes to induce the reduction of metal ions into NPs. Silver (Ag) NPs exhibit potent therapeutic properties that can be exploited to overcome the limitations of current treatment modalities for human health issues such as lung cancer (LC). Here, we review the preparation of AgNPs using biological synthesis and their application against LC using in vitro and in vivo models. An overview of the staging, diagnosis, genetic mutations, and treatment of LC, as well as its main subtypes, is presented. A summary of the reaction mechanisms of AgNPs using microbial cell cultures, plant extracts, phytochemicals, and amino acids is included. The use of capping agents in the biosynthesis of AgNPs with anticancer activity is also detailed. The history and biological activities of metal-based nanostructures synthesized with gold, copper, palladium, and platinum are considered. The possible anticancer mechanisms of AgNPs against LC models are covered. Our perspective about the future of AgNPs in LC treatment and nanomedicine is added.
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Affiliation(s)
- Jorge L. Mejía-Méndez
- Laboratorio de Investigación Fitoquímica, Departamento de Ciencias Químico Biológicas, Universidad de las Américas Puebla, Ex Hacienda Sta. Catarina Mártir S/N, San Andrés Cholula 72810, Mexico
| | - Edgar R. López-Mena
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Gral. Ramón Corona No 2514, Colonia Nuevo México, Zapopan 45121, Mexico
| | - Eugenio Sánchez-Arreola
- Laboratorio de Investigación Fitoquímica, Departamento de Ciencias Químico Biológicas, Universidad de las Américas Puebla, Ex Hacienda Sta. Catarina Mártir S/N, San Andrés Cholula 72810, Mexico
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39
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New Insights into the Cellular Toxicity of Carbon Quantum Dots to Escherichia coli. Antioxidants (Basel) 2022; 11:antiox11122475. [PMID: 36552683 PMCID: PMC9774514 DOI: 10.3390/antiox11122475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/08/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
In this study, the cytotoxicity and toxic mechanism of carbon quantum dots (CQDs) to E. coli were evaluated in vitro. The synthetic CQDs were extremely small in size (~2.08 nm) and displayed strong fluorescence. The results demonstrated that CQDs showed good biocompatibility with E. coli within a short culture time. However, when the exposure time exceeded 24 h, the toxicity of CQDs became apparent, and the contents of reactive oxygen species, lactate dehydrogenase, and the crystal violet absorption rate increased significantly. To further explore the cytotoxic mechanism, approaches including confocal laser scanning microscopy, scanning electron microscopy, and biological transmission electron microscopy combined with zeta potential tests, osmotic pressure measurement, and comet assays were performed. On the one hand, the CQDs altered the surface charges of cells and induced lipid peroxidation by adhesion on the surface of E. coli, leading to an increase in the permeability of the cell wall. On the other hand, when the concentration of CQDs reached 200 µg/mL, the osmotic pressure of the extracellular environment was significantly reduced. These are the main factors that lead to cell edema and death. Finally, the comet assays confirmed that CQDs could induce DNA damage, which could inhibit the proliferation of E. coli.
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Ashry NM, El Bahgy HEK, Mohamed A, Alsubhi NH, Alrefaei GI, Binothman N, Alharbi M, Selim S, Almuhayawi MS, Alharbi MT, Nagshabandi MK, Saad AM, El-Saadony MT, Sitohy B. Evaluation of graphene oxide, chitosan and their complex as antibacterial agents and anticancer apoptotic effect on HeLa cell line. Front Microbiol 2022; 13:922324. [PMID: 36267179 PMCID: PMC9577200 DOI: 10.3389/fmicb.2022.922324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Cancer and bacterial infection are the most serious problems threatening people's lives worldwide. However, the overuse of antibiotics as antibacterial and anticancer treatments can cause side effects and lead to drug-resistant bacteria. Therefore, developing natural materials with excellent antibacterial and anticancer activity is of great importance. In this study, different concentrations of chitosan (CS), graphene oxide (GO), and graphene oxide-chitosan composite (GO-CS) were tested to inhibit the bacterial growth of gram-positive (Bacillus cereus MG257494.1) and gram-negative (Pseudomonas aeruginosa PAO1). Moreover, we used the most efficient natural antibacterial material as an anticancer treatment. The zeta potential is a vital factor for antibacterial and anticancer mechanism, at pH 3–7, the zeta potential of chitosan was positive while at pH 7–12 were negative, however, the zeta potential for GO was negative at all pH values, which (p < 0.05) increased in the GO-CS composite. Chitosan concentrations (0.2 and 1.5%) exhibited antibacterial activity against BC with inhibition zone diameters of 4 and 12 mm, respectively, and against PAO1 with 2 and 10 mm, respectively. Treating BC and PAO1 with GO:CS (1:2) and GO:CS (1:1) gave a larger (p < 0.05) inhibition zone diameter. The viability and proliferation of HeLa cells treated with chitosan were significantly decreased (p < 0.05) from 95.3% at 0% to 12.93%, 10.33%, and 5.93% at 0.2%, 0.4%, and 0.60% concentrations of chitosan, respectively. Furthermore, CS treatment increased the activity of the P53 protein, which serves as a tumor suppressor. This study suggests that chitosan is effective as an antibacterial and may be useful for cancer treatment.
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Affiliation(s)
- Noha M. Ashry
- Department of Agriculture Microbiology, Faculty of Agriculture, Benha University, Qalubia, Egypt
| | - Halla E. K. El Bahgy
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Benha University, Banha, Egypt
| | - Abdelkader Mohamed
- Department of Soil and Water Research, Nuclear Research Center, Egyptian Atomic Energy Authority, Abou Zaabl, Egypt
| | - Nouf H. Alsubhi
- Department of Biological Sciences, College of Science and Arts, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Ghadeer I. Alrefaei
- Department of Biology, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Najat Binothman
- Department of Chemistry, College of Sciences and Arts, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Mona Alharbi
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia
- Samy Selim
| | - Mohammed S. Almuhayawi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohanned T. Alharbi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Mohammed K. Nagshabandi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Ahmed M. Saad
- Department of Biochemistry, Faculty of Agriculture Zagazig University, Zagazig, Egypt
| | - Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
- *Correspondence: Mohamed T. El-Saadony
| | - Basel Sitohy
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
- Department of Clinical Microbiology, Infection and Immunology, Umeå University, Umeå, Sweden
- Basel Sitohy
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Lange A, Sawosz E, Daniluk K, Wierzbicki M, Małolepszy A, Gołębiewski M, Jaworski S. Bacterial Surface Disturbances Affecting Cell Function during Exposure to Three-Compound Nanocomposites Based on Graphene Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3058. [PMID: 36080095 PMCID: PMC9459733 DOI: 10.3390/nano12173058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/19/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Combating pathogenic microorganisms in an era of ever-increasing drug resistance is crucial. The aim of the study was to evaluate the antibacterial mechanism of three-compound nanocomposites that were based on graphene materials. To determine the nanomaterials' physicochemical properties, an analysis of the mean hydrodynamic diameter and zeta potential, transmission electron microscope (TEM) visualization and an FT-IR analysis were performed. The nanocomposites' activity toward bacteria species was defined by viability, colony forming units, conductivity and surface charge, cell wall integrity, ATP concentration, and intracellular pH. To ensure the safe usage of nanocomposites, the presence of cytokines was also analyzed. Both the graphene and graphene oxide (GO) nanocomposites exhibited a high antibacterial effect toward all bacteria species (Enterobacter cloacae, Listeria monocytogenes, Salmonella enterica, and Staphylococcus aureus), as well as exceeded values obtained from exposure to single nanoparticles. Nanocomposites caused the biggest membrane damage, along with ATP depletion. Nanocomposites that were based on GO resulted in lower toxicity to the cell line. In view of the many aspects that must be considered when investigating such complex structures as are three-component nanocomposites, studies of their mechanism of action are crucial to their potential antibacterial use.
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Affiliation(s)
- Agata Lange
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Ewa Sawosz
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Karolina Daniluk
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Mateusz Wierzbicki
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Artur Małolepszy
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, 00-654 Warsaw, Poland
| | - Marcin Gołębiewski
- Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Sławomir Jaworski
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
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Chakraborty N, Jha D, Roy I, Kumar P, Gaurav SS, Marimuthu K, Ng OT, Lakshminarayanan R, Verma NK, Gautam HK. Nanobiotics against antimicrobial resistance: harnessing the power of nanoscale materials and technologies. J Nanobiotechnology 2022; 20:375. [PMID: 35953826 PMCID: PMC9371964 DOI: 10.1186/s12951-022-01573-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022] Open
Abstract
Given the spasmodic increment in antimicrobial resistance (AMR), world is on the verge of “post-antibiotic era”. It is anticipated that current SARS-CoV2 pandemic would worsen the situation in future, mainly due to the lack of new/next generation of antimicrobials. In this context, nanoscale materials with antimicrobial potential have a great promise to treat deadly pathogens. These functional materials are uniquely positioned to effectively interfere with the bacterial systems and augment biofilm penetration. Most importantly, the core substance, surface chemistry, shape, and size of nanomaterials define their efficacy while avoiding the development of AMR. Here, we review the mechanisms of AMR and emerging applications of nanoscale functional materials as an excellent substitute for conventional antibiotics. We discuss the potential, promises, challenges and prospects of nanobiotics to combat AMR.
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Affiliation(s)
- Nayanika Chakraborty
- Department of Chemistry, University of Delhi, New Delhi, 110007, India.,Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025, India
| | - Diksha Jha
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Pradeep Kumar
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, 110007, New Delhi, India
| | - Shailendra Singh Gaurav
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Chaudhary Charan Singh University, Meerut, 250004, India
| | - Kalisvar Marimuthu
- National Centre for Infectious Diseases (NCID), Singapore, 308442, Singapore.,Tan Tock Seng Hospital (TTSH), 308433, Singapore, Singapore
| | - Oon-Tek Ng
- National Centre for Infectious Diseases (NCID), Singapore, 308442, Singapore.,Tan Tock Seng Hospital (TTSH), 308433, Singapore, Singapore
| | - Rajamani Lakshminarayanan
- Ocular Infections and Anti-Microbials Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Singapore, 169856, Singapore. .,Department of Pharmacy, National University of Singapore, Singapore, 117543, Singapore. .,Academic Clinical Program in Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore, 169857, Singapore.
| | - Navin Kumar Verma
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore, 308232, Singapore. .,National Skin Centre, Singapore, 308205, Singapore.
| | - Hemant K Gautam
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025, India.
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Efficient Elimination of Airborne Pathogens: A Study on aerosolized Mycobacterium tuberculosis and SARS-CoV-2 using ZeBox Technology. J Hosp Infect 2022; 129:17-21. [PMID: 35940288 PMCID: PMC9354421 DOI: 10.1016/j.jhin.2022.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/18/2022] [Accepted: 07/21/2022] [Indexed: 11/24/2022]
Abstract
Background Aim Methods Findings Conclusion
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44
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Dymek M, Sikora E. Liposomes as biocompatible and smart delivery systems – The current state. Adv Colloid Interface Sci 2022; 309:102757. [DOI: 10.1016/j.cis.2022.102757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 11/01/2022]
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Cai J, Wang S, Gao Y, Wang Q. Antibacterial Activity and Mechanism of Polygonum orientale L. Essential Oil against Pectobacterium carotovorum subsp. carotovorum. Foods 2022; 11:foods11111585. [PMID: 35681334 PMCID: PMC9180537 DOI: 10.3390/foods11111585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
Infected by Pectobacterium carotovorum subsp. carotovorum (Pcc), the quality of Chinese cabbage could severely decline. Using chemical bactericides to control Pcc could cause food safety problems. Thus, we investigated the optimum extraction conditions, antibacterial activity, chemical compounds and antibacterial mechanism of Polygonum orientale L. essential oil (POEO) against Pcc in order to search a new way to control Pcc. The optimum extraction conditions of POEO (soaking time 2.6 h, extraction time 7.7 h and ratio of liquid to solid 10.3 mL/g) were optimized by response surface methodology. The minimum inhibitory concentration (MIC) of POEO against Pcc was 0.625 mg/mL. The control efficiency of protective activity of POEO against Pcc was 74.67~92.67%, and its curative activity was 76.00~93.00%. Then, 29 compounds were obtained by GC-MS; the prime compounds of POEO were phytol, phytone, n-pentacosane, 1-octen-3-ol and β-ionone. It was verified that, compared with control samples, POEO destroyed cell morphology. It increased surface potential, increased hydrophobicity, damaged cell walls, destroyed the integrity and permeability of cell membrane, reduced membrane potential (MP), and changed membrane protein conformation. It inhibited the activities of pyruvate kinase (PK), succinate dehydrogenase (SDH) and adenosine triphosphatase (ATPase). Briefly, the results of this study demonstrate that POEO showed effective inhibitory activity against Pcc, thus POEO could have potential application in controlling Pcc.
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Affiliation(s)
- Jin Cai
- Institute of Applied Chemistry, Shanxi University, No. 92 Wucheng Road, Taiyuan 030006, China
- Correspondence:
| | - Shiqin Wang
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, No. 92 Wucheng Road, Taiyuan 030006, China;
- The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92 Wucheng Road, Taiyuan 030006, China
| | - Yichen Gao
- School of Life Science, Shanxi University, No. 92 Wucheng Road, Taiyuan 030006, China; (Y.G.); (Q.W.)
| | - Qi Wang
- School of Life Science, Shanxi University, No. 92 Wucheng Road, Taiyuan 030006, China; (Y.G.); (Q.W.)
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Chen B, Zhang H, Qiu J, Wang S, Ouyang L, Qiao Y, Liu X. Mechanical Force Induced Self-Assembly of Chinese Herbal Hydrogel with Synergistic Effects of Antibacterial Activity and Immune Regulation for Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201766. [PMID: 35491505 DOI: 10.1002/smll.202201766] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Skin wounds, especially infected chronic wounds, have attracted worldwide attention due to the high prevalence and poor treatment outcomes. Hydrogel dressings with antibacterial ability and immune regulation property are urgently required. Herein, inspired by the grinding treatment of traditional Chinese medicine, mechanical force is introduced to promote the effective molecular collision and accelerate the self-assembly of chitosan (CS) and puerarin (PUE) for fabricating Chinese-herb-based hydrogels. The antibacterial rate of CS@PUE (C@P) hydrogel is more than 95%, and the wound closed rate is twice that of the control group. Interestingly, the rational design of C@P hydrogels with different PUE ratios enables a refined control over hydrogel formation, nanofiber appearance, viscoelastic, physicochemical, and biological properties. The extraordinary antibacterial ability of C@P hydrogels may originate from the nanofiber structure and the improved zeta potential on account of the orientation of amino groups in CS . Thus, the synergistically antibacterial and immune regulation properties of C@P hydrogels kill bacteria and relieve inflammation in the wound bed, ensuring the anti-infection effect, and boosting wound healing. In addition to providing a universal mechanosynthesis of PUE-based hydrogel for wound healing, this finding is expected to increase the attention paid to Chinese herbal medicines in the construction of biomaterials.
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Affiliation(s)
- Baohui Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Haifeng Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiajun Qiu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Shaoyun Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200025, P. R. China
| | - Liping Ouyang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Yuqin Qiao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Cixi Center of Biomaterial Surface Engineering, Ningbo, 315300, P. R. China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Cixi Center of Biomaterial Surface Engineering, Ningbo, 315300, P. R. China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, P. R. China
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Muhoza B, Qi B, Harindintwali JD, Koko MYF, Zhang S, Li Y. Encapsulation of cinnamaldehyde: an insight on delivery systems and food applications. Crit Rev Food Sci Nutr 2021; 63:2521-2543. [PMID: 34515594 DOI: 10.1080/10408398.2021.1977236] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cinnamaldehyde is an essential oil extracted from the leaves, bark, roots and flowers of cinnamon plants (genus Cinnamomum). Cinnamaldehyde has shown biological functions such as antioxidants, antimicrobials, anti-diabetic, anti-obesity and anti-cancer. However, poor solubility in water as well as molecular sensitivity to oxygen, light, and high temperature limit the direct application of cinnamaldehyde. Researchers are using different encapsulation techniques to maximize the potential biological functions of cinnamaldehyde. Different delivery systems such as liposomes, emulsions, biopolymer nanoparticles, complex coacervation, molecular inclusion, and spray drying have been developed for this purpose. The particle size and morphology, composition and physicochemical properties influence the performance of each delivery system. Consequently, the individual delivery system has its advantages and limitations for specific applications. Given the essential role of cinnamaldehyde in functional food and food preservation, appropriate approaches should be applied in the encapsulation and application of encapsulated cinnamaldehyde. This review systematically analyzes available encapsulation techniques for cinnamaldehyde in terms of their design, properties, advantages and limitations, and food application status. The information provided in this manuscript will assist in the development and widespread use of cinnamaldehyde-loaded particles in the food and beverage industries.
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Affiliation(s)
- Bertrand Muhoza
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Baokun Qi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Jean Damascene Harindintwali
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
| | | | - Shuang Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China.,Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China.,Heilongjiang Green Food Science Research Institute, Harbin, China.,National Research Center of Soybean Engineering and Technology, Harbin, China
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