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Kharga K, Jha S, Vishwakarma T, Kumar L. Current developments and prospects of the antibiotic delivery systems. Crit Rev Microbiol 2024:1-40. [PMID: 38425122 DOI: 10.1080/1040841x.2024.2321480] [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: 07/26/2023] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
Abstract
Antibiotics have remained the cornerstone for the treatment of bacterial infections ever since their discovery in the twentieth century. The uproar over antibiotic resistance among bacteria arising from genome plasticity and biofilm development has rendered current antibiotic therapies ineffective, urging the development of innovative therapeutic approaches. The development of antibiotic resistance among bacteria has further heightened the clinical failure of antibiotic therapy, which is often linked to its low bioavailability, side effects, and poor penetration and accumulation at the site of infection. In this review, we highlight the potential use of siderophores, antibodies, cell-penetrating peptides, antimicrobial peptides, bacteriophages, and nanoparticles to smuggle antibiotics across impermeable biological membranes to achieve therapeutically relevant concentrations of antibiotics and combat antimicrobial resistance (AMR). We will discuss the general mechanisms via which each delivery system functions and how it can be tailored to deliver antibiotics against the paradigm of mechanisms underlying antibiotic resistance.
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Affiliation(s)
- Kusum Kharga
- School of Biotechnology, Faculty of Applied Sciences and Biotechnology, Shoolini University, Himachal Pradesh, India
| | - Shubhang Jha
- School of Bioengineering and Food Technology, Faculty of Applied Sciences and Biotechnology, Shoolini University, Himachal Pradesh, India
| | - Tanvi Vishwakarma
- School of Bioengineering and Food Technology, Faculty of Applied Sciences and Biotechnology, Shoolini University, Himachal Pradesh, India
| | - Lokender Kumar
- School of Biotechnology, Faculty of Applied Sciences and Biotechnology, Shoolini University, Himachal Pradesh, India
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2
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Gao Y, Wang H, Niu X. A hydrogen-bonded curdlan-chitosan/polyvinyl alcohol edible dual functional hydrogel bandage against MRSA promotes wound healing. Int J Biol Macromol 2024; 259:129351. [PMID: 38216019 DOI: 10.1016/j.ijbiomac.2024.129351] [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: 09/06/2023] [Revised: 12/23/2023] [Accepted: 01/07/2024] [Indexed: 01/14/2024]
Abstract
The most prevalent complication arising from skin injuries is bacterial infection, where pathogenic bacteria proliferate significantly at the wound site, leading to subsequent complications like septic shock and sepsis. Although antibiotics presently effectively manage wound infections caused by common bacteria, the escalating prevalence of antibiotic-resistant strains necessitates urgent novel approaches for addressing such infections. Here, we present CS9P1-RA, a dual functional hydrogel dressing, based on polyvinyl alcohol (PVA) matrix crosslinked through hydrogen bonding. CS9P1-RA combines chitosan (CS), a food-derived antibacterial agent, with the natural compound rosmarinic acid (RA) to specifically target skin injuries caused by MRSA. Computational and molecular biology assays illustrate RA's ability to selectively inhibit the activity of Staphylococcus aureus (S. aureus) serine/threonine phosphatase (Stp1), reducing the S. aureus pathogenicity. CS9P1-RA showcases exceptional antibacterial efficacy (MIC = 1 mg/mL) and demonstrates potency in reducing virulence (IC50 = 7.424 μM on Stp1). Notably, it effectively curbs bacterial growth and accelerates wound healing in the mice model, thereby fulfilling the practical requirements for clinical applications. Moreover, the mechanical properties of CS9P1-RA ensure user comfort during treatment. This work introduces a fresh design paradigm for dressing materials, offering a promising solution for treating skin injuries inflicted by antibiotic-resistant bacterial infections.
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Affiliation(s)
- Yawen Gao
- College of Food Science and Engineering, Jilin University, Changchun 130062, PR China
| | - Hongsu Wang
- College of Food Science and Engineering, Jilin University, Changchun 130062, PR China
| | - Xiaodi Niu
- College of Food Science and Engineering, Jilin University, Changchun 130062, PR China.
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3
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Recent advances in chitosan-polyaniline based nanocomposites for environmental applications: A review. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124975] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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4
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Xu X, Zheng J, He Y, Lin K, Li S, Zhang Y, Song P, Zhou Y, Chen X. Nanocarriers for Inner Ear Disease Therapy. Front Cell Neurosci 2021; 15:791573. [PMID: 34924960 PMCID: PMC8677824 DOI: 10.3389/fncel.2021.791573] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 10/28/2021] [Indexed: 12/12/2022] Open
Abstract
Hearing loss is a common disease due to sensory loss caused by the diseases in the inner ear. The development of delivery systems for inner ear disease therapy is important to achieve high efficiency and reduce side effects. Currently, traditional drug delivery systems exhibit the potential to be used for inner ear disease therapy, but there are still some drawbacks. As nanotechnology is developing these years, one of the solutions is to develop nanoparticle-based delivery systems for inner ear disease therapy. Various nanoparticles, such as soft material and inorganic-based nanoparticles, have been designed, tested, and showed controlled delivery of drugs, improved targeting property to specific cells, and reduced systemic side effects. In this review, we summarized recent progress in nanocarriers for inner ear disease therapy. This review provides useful information on developing promising nanocarriers for the efficient treatment of inner ear diseases and for further clinical applications for inner ear disease therapy.
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Affiliation(s)
- Xiaoxiang Xu
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Otorhinolaryngology, Dawu County People's Hospital, Xiaogan, China
| | - Jianwei Zheng
- Department of Biliary Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanze He
- Department of Otorhinolaryngology, Dawu County People's Hospital, Xiaogan, China
| | - Kun Lin
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Shuang Li
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ya Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Peng Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuye Zhou
- Division of Applied Physical Chemistry, Analytical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, Kungliga Tekniska Högskolan (KTH) Royal Institute of Technology, Stockholm, Sweden.,Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Xiong Chen
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
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Corbu VM, Gheorghe I, Marinaș IC, Geană EI, Moza MI, Csutak O, Chifiriuc MC. Demonstration of Allium sativum Extract Inhibitory Effect on Biodeteriogenic Microbial Strain Growth, Biofilm Development, and Enzymatic and Organic Acid Production. Molecules 2021; 26:molecules26237195. [PMID: 34885775 PMCID: PMC8659052 DOI: 10.3390/molecules26237195] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/24/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
To the best of our knowledge, this is the first study demonstrating the efficiency of Allium sativum hydro-alcoholic extract (ASE) againstFigure growth, biofilm development, and soluble factor production of more than 200 biodeteriogenic microbial strains isolated from cultural heritage objects and buildings. The plant extract composition and antioxidant activities were determined spectrophotometrically and by HPLC-MS. The bioevaluation consisted of the qualitative (adapted diffusion method) and the quantitative evaluation of the inhibitory effect on planktonic growth (microdilution method), biofilm formation (violet crystal microtiter method), and production of microbial enzymes and organic acids. The garlic extract efficiency was correlated with microbial strain taxonomy and isolation source (the fungal strains isolated from paintings and paper and bacteria from wood, paper, and textiles were the most susceptible). The garlic extract contained thiosulfinate (307.66 ± 0.043 µM/g), flavonoids (64.33 ± 7.69 µg QE/g), and polyphenols (0.95 ± 0.011 mg GAE/g) as major compounds and demonstrated the highest efficiency against the Aspergillus versicolor (MIC 3.12-6.25 mg/mL), A. ochraceus (MIC: 3.12 mg/mL), Penicillium expansum (MIC 6.25-12.5 mg/mL), and A. niger (MIC 3.12-50 mg/mL) strains. The extract inhibited the adherence capacity (IIBG% 95.08-44.62%) and the production of cellulase, organic acids, and esterase. This eco-friendly solution shows promising potential for the conservation and safeguarding of tangible cultural heritage, successfully combating the biodeteriogenic microorganisms without undesirable side effects for the natural ecosystems.
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Affiliation(s)
- Viorica Maria Corbu
- Department of Genetics, Faculty of Biology, University of Bucharest, Botanical Garden, 3 Intrarea Portocalelor St., 050095 Bucharest, Romania; (V.M.C.); (O.C.)
- Research Institute of the University of Bucharest—ICUB, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania; (M.I.M.); (M.C.C.)
- Doctoral School of Biology, University of Bucharest, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania
| | - Irina Gheorghe
- Research Institute of the University of Bucharest—ICUB, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania; (M.I.M.); (M.C.C.)
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Botanical Garden, 3 Intrarea Portocalelor St., District 6, 060101 Bucharest, Romania
- Correspondence: (I.G.); (I.C.M.)
| | - Ioana Cristina Marinaș
- Research Institute of the University of Bucharest—ICUB, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania; (M.I.M.); (M.C.C.)
- Correspondence: (I.G.); (I.C.M.)
| | - Elisabeta Irina Geană
- National R&D Institute for Cryogenics and Isotopic Technologies—ICIT, Rm. Valcea, 4 Uzinei St., 240050 Ramnicu Valcea, Romania;
| | - Maria Iasmina Moza
- Research Institute of the University of Bucharest—ICUB, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania; (M.I.M.); (M.C.C.)
- Doctoral School of Biology, University of Bucharest, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Botanical Garden, 3 Intrarea Portocalelor St., District 6, 060101 Bucharest, Romania
| | - Ortansa Csutak
- Department of Genetics, Faculty of Biology, University of Bucharest, Botanical Garden, 3 Intrarea Portocalelor St., 050095 Bucharest, Romania; (V.M.C.); (O.C.)
- Doctoral School of Biology, University of Bucharest, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Research Institute of the University of Bucharest—ICUB, 91-95 Splaiul Independenței St., District 5, 050095 Bucharest, Romania; (M.I.M.); (M.C.C.)
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Botanical Garden, 3 Intrarea Portocalelor St., District 6, 060101 Bucharest, Romania
- Romanian Academy of Scientists, 54 Spl. Independentei St., District 5, 50085 Bucharest, Romania
- The Romanian Academy, 25, Calea Victoriei, Sector 1, District 1, 010071 Bucharest, Romania
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Synthesis of Chitosan-Silver Nanoparticle Composite Spheres and Their Antimicrobial Activities. Polymers (Basel) 2021; 13:polym13223990. [PMID: 34833288 PMCID: PMC8620293 DOI: 10.3390/polym13223990] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 11/17/2022] Open
Abstract
Synthesis of silver nanoparticles–chitosan composite particles sphere (AgNPs-chi-spheres) has been completed and its characterization was fulfilled by UV–vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and zetasizer nano. UV–vis spectroscopy characterization showed that AgNPs-chi-spheres gave optimum absorption at a wavelength of 410 nm. The XRD spectra showed that the structure of AgNPs-chi-spheres were crystalline and spherical. Characterization by SEM showed that AgNPs-chi-spheres, with the addition of 20% of NaOH, resulted in the lowest average particle sizes of 46.91 nm. EDX analysis also showed that AgNPs-chi-spheres, with the addition of a 20% NaOH concentration, produced particles with regular spheres, a smooth and relatively nonporous structure. The analysis using zetasizer nano showed that the zeta potential value and the polydispersity index value of the AgNPs-chi-sphere tended to increase with an increased NaOH concentration. The results of the microbial activity screening showed that the AgNP-chi-Spheres with highest concentration of NaOH, produced the highest inhibition zone diameters against S. aureus, E. coli, and C. albicans, with inhibition zone diameters of 19.5, 18.56, and 12.25 nm, respectively.
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New O-Aryl-Carbamoyl-Oxymino-Fluorene Derivatives with MI-Crobicidal and Antibiofilm Activity Enhanced by Combination with Iron Oxide Nanoparticles. Molecules 2021; 26:molecules26103002. [PMID: 34070126 PMCID: PMC8158365 DOI: 10.3390/molecules26103002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/13/2021] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial resistance is one of the major public health threats at the global level, urging the search for new antimicrobial molecules. The fluorene nucleus is a component of different bioactive compounds, exhibiting diverse pharmacological actions. The present work describes the synthesis, chemical structure elucidation, and bioactivity of new O-aryl-carbamoyl-oxymino-fluorene derivatives and the contribution of iron oxide nanoparticles to enhance the desired biological activity. The antimicrobial activity assessed against three bacterial and fungal strains, in suspension and biofilm growth state, using a quantitative assay, revealed that the nature of substituents on the aryl moiety are determinant for both the spectrum and intensity of the inhibitory effect. The electron-withdrawing inductive effect of chlorine atoms enhanced the activity against planktonic and adhered Staphylococcus aureus, while the +I effect of the methyl group enhanced the anti-fungal activity against Candida albicans strain. The magnetite nanoparticles have substantially improved the antimicrobial activity of the new compounds against planktonic microorganisms. The obtained compounds, as well as the magnetic core@shell nanostructures loaded with these compounds have a promising potential for the development of novel antimicrobial strategies.
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Gheorghe DC, Niculescu AG, Bîrcă AC, Grumezescu AM. Nanoparticles for the Treatment of Inner Ear Infections. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1311. [PMID: 34067544 PMCID: PMC8156593 DOI: 10.3390/nano11051311] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Abstract
The inner ear is sensitive to various infections of viral, bacterial, or fungal origin, which, if left untreated, may lead to hearing loss or progress through the temporal bone and cause intracranial infectious complications. Due to its isolated location, the inner ear is difficult to treat, imposing an acute need for improving current therapeutic approaches. A solution for enhancing antimicrobial treatment performance is the use of nanoparticles. Different inorganic, lipidic, and polymeric-based such particles have been designed, tested, and proven successful in the controlled delivery of medication, improving drug internalization by the targeted cells while reducing the systemic side effects. This paper makes a general presentation of common inner ear infections and therapeutics administration routes, further focusing on newly developed nanoparticle-mediated treatments.
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Affiliation(s)
- Dan Cristian Gheorghe
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
- “M.S. Curie” Clinical Emergency Hospital for Children, 050474 Bucharest, Romania
| | - Adelina-Gabriela Niculescu
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Alexandra Cătălina Bîrcă
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Alexandru Mihai Grumezescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania;
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
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9
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Gherasim O, Grumezescu AM, Ficai A, Grumezescu V, Holban AM, Gălățeanu B, Hudiță A. Composite P(3HB-3HV)-CS Spheres for Enhanced Antibiotic Efficiency. Polymers (Basel) 2021; 13:989. [PMID: 33807077 PMCID: PMC8004896 DOI: 10.3390/polym13060989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 01/17/2023] Open
Abstract
Natural-derived biopolymers are suitable candidates for developing specific and selective performance-enhanced antimicrobial formulations. Composite polymeric particles based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and chitosan, P(3HB-3HV)-CS, are herein proposed as biocompatible and biodegradable delivery systems for bioproduced antibiotics: bacitracin (Bac), neomycin (Neo) and kanamycin (Kan). The stimuli-responsive spheres proved efficient platforms for boosting the antibiotic efficiency and antibacterial susceptibility, as evidenced against Gram-positive and Gram-negative strains. Absent or reduced proinflammatory effects were evidenced on macrophages in the case of Bac-/Neo- and Kan-loaded spheres, respectively. Moreover, these systems showed superior ability to sustain and promote the proliferation of dermal fibroblasts, as well as to preserve their ultrastructure (membrane and cytoskeleton integrity) and to exhibit anti-oxidant activity. The antibiotic-loaded P(3HB-3HV)-CS spheres proved efficient alternatives for antibacterial strategies.
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Affiliation(s)
- Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (A.F.)
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, RO-77125 Magurele, Romania
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (A.F.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (A.F.)
| | - Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, RO-77125 Magurele, Romania
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Alina Maria Holban
- Microbiology & Immunology Department, Faculty of Biology, University of Bucharest, 77206 Bucharest, Romania;
| | - Bianca Gălățeanu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (B.G.); (A.H.)
| | - Ariana Hudiță
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (B.G.); (A.H.)
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Rani P, Johar R, Jassal PS. Adsorption of nickel (II) ions from wastewater using glutaraldehyde cross-linked magnetic chitosan beads: isotherm, kinetics and thermodynamics. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:2193-2202. [PMID: 33263595 DOI: 10.2166/wst.2020.459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Magnetic chitosan beads (MCSB), prepared from solution by using an external magnet, and the adsorption of Ni(II) ions from wastewater by MCSB and its cross-linked derivative with glutaraldehyde (GLU-MCSB) was investigated in an adsorption system. The GLU-MCSB sorbents are insoluble in aqueous acidic solution and improve adsorption capacity. The adsorption process was carried out by considering various parameters, viz. adsorbent dose, contact time, pH and temperature. Thermogravimetric analysis of beads shows that degradation takes place in two stages. Fourier transform infra-red spectra of magnetic beads exhibit an absorption band at 606 cm-1 for Fe-O. The elemental analysis (energy dispersive X-ray analysis) and scanning electron microscopy were used to analyze the structure and characteristics of MCSB and GLU-MCSB. The Ni(II) removal efficiency attains a highest value of 95.12% with cross-linked GLU-MCSB in comparison to 79.5% with MCSB. Adsorption processes follow the pseudo-second-order rate kinetics model, which suggested that the rate-limiting step may be the chemical adsorption rather than the mass transport. The experimental data of adsorption fitted well with the Langmuir and Freundlich isotherms with a high correlation coefficient (R2 > 0.9), showing that monolayer adsorption took place on the surface of GLU-MCSB absorbents. The negative values of entropy change, -175.64 and -163.30 J/(mol·K), and enthalpy change, -54.75 and -49.58 kJ/mol, for MCSB and GLU-MCSB suggest that the process is spontaneous and exothermic in nature.
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Affiliation(s)
- Priti Rani
- Department of Chemistry, SGTB Khalsa College, University of Delhi, Delhi 110007, India E-mail:
| | - Rajni Johar
- Department of Chemistry, Maitreyi College, University of Delhi, Delhi 110021, India
| | - P S Jassal
- Department of Chemistry, SGTB Khalsa College, University of Delhi, Delhi 110007, India E-mail:
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Nanostructured Thin Coatings Containing Anthriscus sylvestris Extract with Dual Bioactivity. Molecules 2020; 25:molecules25173866. [PMID: 32854362 PMCID: PMC7504079 DOI: 10.3390/molecules25173866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 01/19/2023] Open
Abstract
Plant extracts are highly valuable pharmaceutical complexes recognized for their biological properties, including antibacterial, antifungal, antiviral, antioxidant, anticancer, and anti-inflammatory properties. However, their use is limited by their low water solubility and physicochemical stability. In order to overcome these limitations, we aimed to develop nanostructured carriers as delivery systems for plant extracts; in particular, we selected the extract of Anthriscus sylvestris (AN) on the basis of its antimicrobial effect and antitumor activity. In this study, AN-extract-functionalized magnetite (Fe3O4@AN) nanoparticles (NPs) were prepared by the co-precipitation method. The purpose of this study was to synthesize and investigate the physicochemical and biological features of composite coatings based on Fe3O4@AN NPs obtained by matrix-assisted pulsed laser evaporation technique. In this respect, laser fluence and drop-casting studies on coatings were performed. The physical and chemical properties of laser-synthesized coatings were investigated by scanning electron microscopy, while Fourier transform infrared spectroscopy comparative analysis was used for determining the chemical structure and functional integrity. Relevant data regarding the presence of magnetic nanoparticles as the only crystalline phase and the size of nanoparticles were obtained by transmission electron microscopy. The in vitro toxicity assessment of the Fe3O4@AN showed significant cytotoxic activity against human adenocarcinoma HT-29 cells after prolonged exposure. Antimicrobial results demonstrated that Fe3O4@AN coatings inhibit microbial colonization and biofilm formation in clinically relevant bacteria species and yeasts. Such coatings are useful, natural, and multifunctional solutions for the development of tailored medical devices and surfaces.
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Zheng C, Zheng H, Hu C, Wang Y, Wang Y, Zhao C, Ding W, Sun Q. Structural design of magnetic biosorbents for the removal of ciprofloxacin from water. BIORESOURCE TECHNOLOGY 2020; 296:122288. [PMID: 31678706 DOI: 10.1016/j.biortech.2019.122288] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
Magnetic biosorbents with specific morphological and molecular structure (PMCCs) were designed for the removal of ciprofloxacin (CIP) from water. Radical polymerization method was applied to immobilize the designed polymer brushes onto core-shell shaped magnetic microspheres to fabricate PMCCs. PMCCs exhibited a maximum adsorption capacity of 527.93 mg·g-1, which is much higher than reported adsorbents, owing to the complete stretch of polymer brushes and increased active sites as well as enhanced interaction. The investigation on the adsorption behavior of PMCCs for CIP manifested that CIP adsorption well fitted the Langmuir isotherm model and pseudo-second-order kinetic model. The calculated thermodynamic parameters suggested that CIP adsorption onto PMCCs was spontaneous and exothermic. Further recycling experiments showed a loss of less than 20% in the CIP adsorption capacity after five times, demonstrating the reusability of the as-designed biosorbents.
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Affiliation(s)
- Chaofan Zheng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Huaili Zheng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
| | - Chao Hu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Yili Wang
- College of Environmental Science and Engineering, Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing 100083, China
| | - Yongjuan Wang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Chun Zhao
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Wei Ding
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Qiang Sun
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
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Chirgwin ME, Dedloff MR, Holban AM, Gestal MC. Novel Therapeutic Strategies Applied to Pseudomonas aeruginosa Infections in Cystic Fibrosis. MATERIALS 2019; 12:ma12244093. [PMID: 31817881 PMCID: PMC6947192 DOI: 10.3390/ma12244093] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/25/2019] [Accepted: 12/05/2019] [Indexed: 11/16/2022]
Abstract
Cystic fibrosis (CF) is one of the most prevalent genetic diseases and a total of 1700 different genetic mutations can cause this condition. Patients that suffer this disease have a thickening of the mucus, creating an environment that promotes bacterial infections. Pseudomonas aeruginosa is a ubiquitous bacterium, which is frequently found in the lungs of CF patients. P. aeruginosa is known for its high level of antibiotic resistance as well as its high rate of mutation that allows it to rapidly evolve and adapt to a multitude of conditions. When a CF lung is infected with P. aeruginosa, the decay of the patient is accelerated, but there is little that can be done apart from controlling the infection with antibiotics. Novel strategies to control P. aeruginosa infection are imperative, and nanotechnology provides novel approaches to drug delivery that are more efficient than classic antibiotic treatments. These drug delivery systems are offering new prospects, especially for these patients with special mucus conditions and bacterial characteristics that limit antibiotic use.
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Affiliation(s)
- Michael E. Chirgwin
- Department of Chemical Engineering, Clarkson University, Potsdam, NY 13699, USA;
| | | | - Alina Maria Holban
- Department of Microbiology, Faculty of Biology, University of Bucharest, 030018 Bucharest, Romania;
- Research Institute of the University of Bucharest (ICUB), 050107 Bucharest, Romania
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politechnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Monica C. Gestal
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Correspondence: or
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Turin-Moleavin IA, Fifere A, Lungoci AL, Rosca I, Coroaba A, Peptanariu D, Nastasa V, Pasca SA, Bostanaru AC, Mares M, Pinteala M. In Vitro and In Vivo Antioxidant Activity of the New Magnetic-Cerium Oxide Nanoconjugates. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1565. [PMID: 31690040 PMCID: PMC6915648 DOI: 10.3390/nano9111565] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 10/21/2019] [Accepted: 11/01/2019] [Indexed: 01/21/2023]
Abstract
BACKGROUND Cerium oxide nanoparticles present the mimetic activity of superoxide dismutase, being able to inactivate the excess of reactive oxygen species (ROS) correlated with a large number of pathologies, such as stents restenosis and the occurrence of genetic mutations that can cause cancer. This study presents the synthesis and biological characterisation of nanoconjugates based on nanoparticles of iron oxide interconnected with cerium oxide conjugates. METHODS The synthesis of magnetite-nanoceria nanoconjugates has been done in several stages, where the key to the process is the coating of nanoparticles with polyethyleneimine and its chemical activation-reticulation with glutaraldehyde. The nanoconjugates are characterised by several techniques, and the antioxidant activity was evaluated in vitro and in vivo. RESULTS Iron oxide nanoparticles interconnected with cerium oxide nanoparticles were obtained, having an average diameter of 8 nm. Nanoconjugates prove to possess superparamagnetic properties and the saturation magnetisation varies with the addition of diamagnetic components in the system, remaining within the limits of biomedical applications. In vitro free-radical scavenging properties of nanoceria are improved after the coating of nanoparticles with polyethylenimine and conjugation with magnetite nanoparticles. In vivo studies reveal increased antioxidant activity in all organs and fluids collected from mice, which demonstrates the ability of the nanoconjugates to reduce oxidative stress. CONCLUSION Nanoconjugates possess magnetic properties, being able to scavenge free radicals, reducing the oxidative stress. The combination of the two properties mentioned above makes them excellent candidates for theranostic applications.
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Affiliation(s)
- Ioana-Andreea Turin-Moleavin
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica-Voda Alley, 700487 Iasi, Romania; (I.-A.T.-M.); (A.-L.L.); (I.R.); (A.C.); (D.P.)
| | - Adrian Fifere
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica-Voda Alley, 700487 Iasi, Romania; (I.-A.T.-M.); (A.-L.L.); (I.R.); (A.C.); (D.P.)
| | - Ana-Lacramioara Lungoci
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica-Voda Alley, 700487 Iasi, Romania; (I.-A.T.-M.); (A.-L.L.); (I.R.); (A.C.); (D.P.)
| | - Irina Rosca
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica-Voda Alley, 700487 Iasi, Romania; (I.-A.T.-M.); (A.-L.L.); (I.R.); (A.C.); (D.P.)
| | - Adina Coroaba
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica-Voda Alley, 700487 Iasi, Romania; (I.-A.T.-M.); (A.-L.L.); (I.R.); (A.C.); (D.P.)
| | - Dragos Peptanariu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica-Voda Alley, 700487 Iasi, Romania; (I.-A.T.-M.); (A.-L.L.); (I.R.); (A.C.); (D.P.)
| | - Valentin Nastasa
- Laboratory of Antimicrobial Chemotherapy, “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, 8 Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (S.-A.P.); (A.-C.B.); (M.M.)
| | - Sorin-Aurelian Pasca
- Laboratory of Antimicrobial Chemotherapy, “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, 8 Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (S.-A.P.); (A.-C.B.); (M.M.)
| | - Andra-Cristina Bostanaru
- Laboratory of Antimicrobial Chemotherapy, “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, 8 Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (S.-A.P.); (A.-C.B.); (M.M.)
| | - Mihai Mares
- Laboratory of Antimicrobial Chemotherapy, “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, 8 Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (S.-A.P.); (A.-C.B.); (M.M.)
| | - Mariana Pinteala
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica-Voda Alley, 700487 Iasi, Romania; (I.-A.T.-M.); (A.-L.L.); (I.R.); (A.C.); (D.P.)
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Mosaiab T, Farr DC, Kiefel MJ, Houston TA. Carbohydrate-based nanocarriers and their application to target macrophages and deliver antimicrobial agents. Adv Drug Deliv Rev 2019; 151-152:94-129. [PMID: 31513827 DOI: 10.1016/j.addr.2019.09.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 09/02/2019] [Accepted: 09/05/2019] [Indexed: 12/18/2022]
Abstract
Many deadly infections are produced by microorganisms capable of sustained survival in macrophages. This reduces exposure to chemadrotherapy, prevents immune detection, and is akin to criminals hiding in police stations. Therefore, the use of glyco-nanoparticles (GNPs) as carriers of therapeutic agents is a burgeoning field. Such an approach can enhance the penetration of drugs into macrophages with specific carbohydrate targeting molecules on the nanocarrier to interact with macrophage lectins. Carbohydrates are natural biological molecules and the key constituents in a large variety of biological events such as cellular communication, infection, inflammation, enzyme trafficking, cellular migration, cancer metastasis and immune functions. The prominent characteristics of carbohydrates including biodegradability, biocompatibility, hydrophilicity and the highly specific interaction of targeting cell-surface receptors support their potential application to drug delivery systems (DDS). This review presents the 21st century development of carbohydrate-based nanocarriers for drug targeting of therapeutic agents for diseases localized in macrophages. The significance of natural carbohydrate-derived nanoparticles (GNPs) as anti-microbial drug carriers is highlighted in several areas of treatment including tuberculosis, salmonellosis, leishmaniasis, candidiasis, and HIV/AIDS.
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Affiliation(s)
- Tamim Mosaiab
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia
| | - Dylan C Farr
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia
| | - Milton J Kiefel
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia.
| | - Todd A Houston
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia.
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Grumezescu V, Gherasim O, Negut I, Banita S, Holban AM, Florian P, Icriverzi M, Socol G. Nanomagnetite-embedded PLGA Spheres for Multipurpose Medical Applications. MATERIALS 2019; 12:ma12162521. [PMID: 31398805 PMCID: PMC6719237 DOI: 10.3390/ma12162521] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 08/03/2019] [Accepted: 08/05/2019] [Indexed: 12/25/2022]
Abstract
We report on the synthesis and evaluation of biopolymeric spheres of poly(lactide-co-glycolide) containing different amounts of magnetite nanoparticles and Ibuprofen (PLGA-Fe3O4-IBUP), but also chitosan (PLGA-CS-Fe3O4-IBUP), to be considered as drug delivery systems. Besides morphological, structural, and compositional characterizations, the PLGA-Fe3O4-IBUP composite microspheres were subjected to drug release studies, performed both under biomimetically-simulated dynamic conditions and under external radiofrequency magnetic fields. The experimental data resulted by performing the drug release studies evidenced that PLGA-Fe3O4-IBUP microspheres with the lowest contents of Fe3O4 nanoparticles are optimal candidates for triggered drug release under external stimulation related to hyperthermia effect. The as-selected microspheres and their chitosan-containing counterparts were biologically assessed on macrophage cultures, being evaluated as biocompatible and bioactive materials that are able to promote cellular adhesion and proliferation. The composite biopolymeric spheres resulted in inhibited microbial growth and biofilm formation, as assessed against Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans microbial strains. Significantly improved antimicrobial effects were reported in the case of chitosan-containing biomaterials, regardless of the microorganisms' type. The nanostructured composite biopolymeric spheres evidenced proper characteristics as prolonged and controlled drug release platforms for multipurpose biomedical applications.
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Affiliation(s)
- Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania.
| | - Oana Gherasim
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Irina Negut
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania
| | - Stefan Banita
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania
| | - Alina Maria Holban
- Microbiology & Immunology Department, Faculty of Biology, University of Bucharest, 77206 Bucharest, Romania
| | - Paula Florian
- Ligand-Receptor Interactions Department, Institute of Biochemistry, Romanian Academy, 060031 Bucharest, Romania
| | - Madalina Icriverzi
- Ligand-Receptor Interactions Department, Institute of Biochemistry, Romanian Academy, 060031 Bucharest, Romania
| | - Gabriel Socol
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania.
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Laser Processed Antimicrobial Nanocomposite Based on Polyaniline Grafted Lignin Loaded with Gentamicin-Functionalized Magnetite. Polymers (Basel) 2019; 11:polym11020283. [PMID: 30960267 PMCID: PMC6419051 DOI: 10.3390/polym11020283] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 12/15/2022] Open
Abstract
Composite thin coatings of conductive polymer (polyaniline grafted lignin, PANI-LIG) embedded with aminoglycoside Gentamicin sulfate (GS) or magnetite nanoparticles loaded with GS (Fe₃O₄@GS) were deposited by the matrix-assisted pulsed laser evaporation (MAPLE) technique. The aim was to obtain such nanostructured coatings for titanium-based biomedical surfaces, which would induce multi-functional properties to implantable devices, such as the controlled release of the therapeutically active substance under the action of a magnetic and/or electric field. Thus, the unaltered laser transfer of the initial biomaterials was reported, and the deposited thin coatings exhibited an appropriate nanostructured surface, suitable for bone-related applications. The laser processing of PANI-LIG materials had a meaningful impact on the composites' wettability, since the contact angle values corresponding to the composite laser processed materials decreased in comparison with pristine conductive polymer coatings, indicating more hydrophilic surfaces. The corrosion resistant structures exhibited significant antimicrobial activity against Escherichia coli, Staphylococcus aureus, and Candida albicans strains. In vitro cytotoxicity studies demonstrated that the PANI-LIG-modified titanium substrates can allow growth of bone-like cells. These results encourage further assessment of this type of biomaterial for their application in controlled drug release at implantation sites by external activation.
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Karmakar P, Gaitonde V. Promising Recent Strategies with Potential Clinical Translational Value to Combat Antibacterial Resistant Surge. MEDICINES (BASEL, SWITZERLAND) 2019; 6:E21. [PMID: 30709019 PMCID: PMC6473725 DOI: 10.3390/medicines6010021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/10/2019] [Accepted: 01/26/2019] [Indexed: 12/27/2022]
Abstract
Multiple drug resistance (MDR) for the treatment of bacterial infection has been a significant challenge since the beginning of the 21st century. Many of the small molecule-based antibiotic treatments have failed on numerous occasions due to a surge in MDR, which has claimed millions of lives worldwide. Small particles (SPs) consisting of metal, polymer or carbon nanoparticles (NPs) of different sizes, shapes and forms have shown considerable antibacterial effect over the past two decades. Unlike the classical small-molecule antibiotics, the small particles are less exposed so far to the bacteria to trigger a resistance mechanism, and hence have higher chances of fighting the challenge of the MDR process. Until recently, there has been limited progress of clinical treatments using NPs, despite ample reports of in vitro antibacterial efficacy. In this review, we discuss some recent and unconventional strategies that have explored the antibacterial efficacy of these small particles, alone and in combination with classical small molecules in vivo, and demonstrate possibilities that are favorable for clinical translations in near future.
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Affiliation(s)
- Partha Karmakar
- Department of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Douzandeh-Mobarrez B, Ansari-Dogaheh M, Eslaminejad T, Kazemipour M, Shakibaie M. Preparation and Evaluation of the Antibacterial Effect of Magnetic Nanoparticles Containing Gentamicin: A Preliminary In vitro Study. IRANIAN JOURNAL OF BIOTECHNOLOGY 2018; 16:e1559. [PMID: 31457030 PMCID: PMC6697835 DOI: 10.21859/ijb.1559] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 08/04/2018] [Accepted: 08/29/2018] [Indexed: 01/03/2023]
Abstract
Background Magnetic nanoparticles (MNPs) loaded by various active compounds can be used for targeted drug delivery. Objectives: In the present study, the Fe3O4 magnetic nanoparticles that contained gentamicin were prepared and their antibacterial activities were studied. Materials and Methods MNPs containing gentamicin (G@SA-MNPs) were prepared using sodium alginate (SA) as a surface modifier. After and before coating, the prepared MNPs were characterized using transmission electron microscopy (TEM), X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR), and vibrating sample magnetometer (VSM). Finally, the antibacterial effect of the MNPs was investigated by a conventional serial agar dilution method. Results Particle size distribution analysis showed that the size of MNPs, before and after coating, was in the range of 1–18 nm and 12–40 nm, respectively. The magnetization curve of G@SA-MNPs (with saturation magnetization of 27.9 emu.g-1) confirmed ferromagnetic property. Loading gentamicin on the surface of MNPs was qualitatively verified by FTIR spectrum. Quantitative analysis measurements indicated the gentamicin loading on SA-MNPs as 56.7 ± 5.4%. The measured MICs of G@SA-MNPs for Pseudomonas aeruginosa (PTTC 1574) was 1.28 µg.mL-1. The sub-MIC (0.64 µg.mL-1) concentration of G@SA-MNPs in nutrient broth could successfully inhibit the growth of P. aeruginosa for 14 hours. Conclusions Loading gentamicin on the SA-MNPs exhibited reasonable antibacterial effects against P. aeruginosa.
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Affiliation(s)
| | - Mehdi Ansari-Dogaheh
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Touba Eslaminejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Maryam Kazemipour
- Department of Chemistry, Faculty of Sciences, Kerman Branch, Islamic Azad University, Kerman, Iran
| | - Mojtaba Shakibaie
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.,Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
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Dendisová M, Jeništová A, Parchaňská-Kokaislová A, Matějka P, Prokopec V, Švecová M. The use of infrared spectroscopic techniques to characterize nanomaterials and nanostructures: A review. Anal Chim Acta 2018; 1031:1-14. [DOI: 10.1016/j.aca.2018.05.046] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 01/25/2023]
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Ficai D, Grumezescu V, Fufă OM, Popescu RC, Holban AM, Ficai A, Grumezescu AM, Mogoanta L, Mogosanu GD, Andronescu E. Antibiofilm Coatings Based on PLGA and Nanostructured Cefepime-Functionalized Magnetite. NANOMATERIALS 2018; 8:nano8090633. [PMID: 30134515 PMCID: PMC6165491 DOI: 10.3390/nano8090633] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/09/2018] [Accepted: 08/13/2018] [Indexed: 12/29/2022]
Abstract
The aim of our study was to obtain and evaluate the properties of polymeric coatings based on poly(lactic-co-glycolic) acid (PLGA) embedded with magnetite nanoparticles functionalized with commercial antimicrobial drugs. In this respect, we firstly synthesized the iron oxide particles functionalized (@) with the antibiotic Cefepime (Fe₃O₄@CEF). In terms of composition and microstructure, the as-obtained powdery sample was investigated by means of grazing incidence X-ray diffraction (GIXRD), thermogravimetric analysis (TGA), scanning and transmission electron microscopy (SEM and TEM, respectively). Crystalline and nanosized particles (~5 nm mean particle size) with spherical morphology, consisting in magnetite core and coated with a uniform and reduced amount of antibiotic shell, were thus obtained. In vivo biodistribution studies revealed the obtained nanoparticles have a very low affinity for innate immune-related vital organs. Composite uniform and thin coatings based on poly(lactide-co-glycolide) (PLGA) and antibiotic-functionalized magnetite nanoparticles (PLGA/Fe₃O₄@CEF) were subsequently obtained by using the matrix assisted pulsed laser evaporation (MAPLE) technique. Relevant compositional and structural features regarding the composite coatings were obtained by performing infrared microscopy (IRM) and SEM investigations. The efficiency of the biocompatible composite coatings against biofilm development was assessed for both Gram-negative and Gram-positive pathogens. The PLGA/Fe₃O₄@CEF materials proved significant and sustained anti-biofilm activity against staphylococcal and Escherichia coli colonisation.
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Affiliation(s)
- Denisa Ficai
- Inorganic Chemistry Department, University Politehnica of Bucharest, Bucharest 011061, Romania.
| | - Valentina Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest 011061, Romania.
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, Magurele RO-77125, Romania.
| | - Oana Mariana Fufă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest 011061, Romania.
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, Magurele RO-77125, Romania.
| | - Roxana Cristina Popescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest 011061, Romania.
- Department of Life and Environmental Physics, "Horia Hulubei" National Institute of Physics and Nuclear Engineering, Magurele RO-77125, Romania.
| | - Alina Maria Holban
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest 011061, Romania.
- Microbiology & Immunology Department, Faculty of Biology, University of Bucharest, Bucharest 77206, Romania.
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest 011061, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest 011061, Romania.
| | - Laurentiu Mogoanta
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania.
| | - George Dan Mogosanu
- Department of Pharmacognosy and Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania.
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest 011061, Romania.
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Zhao C, Liu X, Zhang X, Yan H, Qian Z, Li X, Ma Z, Han Q, Pei C. A facile one-step method for preparation of Fe3O4/CS/INH nanoparticles as a targeted drug delivery for tuberculosis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:1182-1188. [DOI: 10.1016/j.msec.2017.03.137] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 03/08/2017] [Accepted: 03/13/2017] [Indexed: 01/23/2023]
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Jabeen S, Islam A, Ghaffar A, Gull N, Hameed A, Bashir A, Jamil T, Hussain T. Development of a novel pH sensitive silane crosslinked injectable hydrogel for controlled release of neomycin sulfate. Int J Biol Macromol 2017; 97:218-227. [DOI: 10.1016/j.ijbiomac.2017.01.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 12/29/2016] [Accepted: 01/03/2017] [Indexed: 12/13/2022]
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Bhardwaj AK, Shukla A, Mishra RK, Singh SC, Mishra V, Uttam KN, Singh MP, Sharma S, Gopal R. Power and Time Dependent Microwave Assisted Fabrication of Silver Nanoparticles Decorated Cotton (SNDC) Fibers for Bacterial Decontamination. Front Microbiol 2017; 8:330. [PMID: 28316594 PMCID: PMC5334347 DOI: 10.3389/fmicb.2017.00330] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 02/17/2017] [Indexed: 01/29/2023] Open
Abstract
Plasmonic nanoparticles (NPs) such as silver and gold have fascinating optical properties due to their enhanced optical sensitivity at a wavelength corresponding to their surface plasmon resonance (SPR) absorption. Present work deals with the fabrication of silver nanoparticles decorated cotton (SNDC) fibers as a cheap and efficient point of contact disinfectant. SNDC fibers were fabricated by a simple microwave assisted route. The microwave power and irradiation time were controlled to optimize size and density of silver nanoparticles (SNPs) on textile fibers. As prepared cotton fabric was characterized for ATR-FTIR, UV-VIS diffuse reflectance, SEM and TEM investigations. Size of SNPs as well as total density of silver atoms on fabric gets increased with the increase of microwave power from 100 W to 600 W. The antibacterial efficacy of SNPs extracted from SNDC fibers was found to be more effective against Gram-negative bacteria than Gram-positive bacteria with MIC 38.5 ± 0.93 μg/mL against Salmonella typhimurium MTCC-98 and 125 ± 2.12 μg/mL against Staphylococcus aureus MTCC-737, a linear correlation coefficient with R2 ranging from ∼0.928–0.935 was also observed. About >50% death cells were observed through Propidium Iodide (PI) internalization after treatment of SNPs extracted from SNDC fibers with concentration 31.25 μg/mL. Generation of ROS and free radical has also been observed which leads to cell death. Excellent Escherichia coli deactivation efficacy suggested that SNDC fibers could be used as potentially safe disinfectants for cleaning of medical equipment, hand, wound, water and preservation of food and beverages.
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Affiliation(s)
- Abhishek K Bhardwaj
- Centre for Environmental Science, University of AllahabadAllahabad, India; Laser Spectroscopy and Nanomaterials Lab., Department of Physics, University of AllahabadAllahabad, India
| | - Abhishek Shukla
- Laser Spectroscopy and Nanomaterials Lab., Department of Physics, University of Allahabad Allahabad, India
| | - Rohit K Mishra
- Centre for Medical Diagnostic and Research, Motilal Nehru National Institute of Technology Allahabad, India
| | - S C Singh
- Laser Spectroscopy and Nanomaterials Lab., Department of Physics, University of AllahabadAllahabad, India; High-Intensity Femtosecond Laser Laboratory, The Institute of Optics, University of RochesterRochester, NY, USA
| | - Vani Mishra
- Centre for Medical Diagnostic and Research, Motilal Nehru National Institute of Technology Allahabad, India
| | - K N Uttam
- Laser Spectroscopy and Nanomaterials Lab., Department of Physics, University of Allahabad Allahabad, India
| | - Mohan P Singh
- Centre of Biotechnology, University of Allahabad Allahabad, India
| | - Shivesh Sharma
- Centre for Medical Diagnostic and Research, Motilal Nehru National Institute of Technology Allahabad, India
| | - R Gopal
- Laser Spectroscopy and Nanomaterials Lab., Department of Physics, University of Allahabad Allahabad, India
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All natural cellulose acetate—Lemongrass essential oil antimicrobial nanocapsules. Int J Pharm 2016; 510:508-15. [DOI: 10.1016/j.ijpharm.2016.01.060] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 01/19/2016] [Accepted: 01/23/2016] [Indexed: 12/20/2022]
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Ghaseminezhad SM, Shojaosadati SA. Evaluation of the antibacterial activity of Ag/Fe 3 O 4 nanocomposites synthesized using starch. Carbohydr Polym 2016; 144:454-63. [DOI: 10.1016/j.carbpol.2016.03.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 03/02/2016] [Accepted: 03/03/2016] [Indexed: 12/11/2022]
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Hasanova UA, Ramazanov MA, Maharramov AM, Hajiyeva SF, Parfyonova YV, Eyvazova GM, Hajiyeva FV, Guliyeva NA, Veliyeva SB. The Improvement of Antimicrobial Activity of Kanamycin and Ciprofloxacin Antibiotics Coupled With Biocompatible Magnetite Nanoparticles and Characterization of Their Structure. J Nanotechnol Eng Med 2016. [DOI: 10.1115/1.4033126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In this paper, we present the synthesis of nanostructures of magnetite nanoparticles (NPs) with ciprofloxacin and kanamycin antibiotics, based on self-assembling principle. The nanostructures were prepared in crystallite size, ranging 8–16 nm, in one pot addition setup and further washing steps, using only iron precursors and above-mentioned antibiotics as stabilizers. Nanostructures were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis methods, Fourier transform infrared (FTIR) and ultraviolet (UV) spectroscopy methods. It was found that they have well-shaped spherical form and are homogeneous in size. The quantitative analysis of nanostructured antibiotics was performed by atom absorbance spectroscopy (AAS) as well as on the basis of Lambert–Beer law. Prepared nanostructures were tested on Staphylococcus aureus and Pseudomonas aeruginosa. Obtained results demonstrated that these nanostructures are able to improve antimicrobial properties and decrease the minimal inhibitory concentration (MIC) of pristine kanamycin and ciprofloxacin antibiotics.
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Affiliation(s)
| | | | | | - Sarvinaz Faiq Hajiyeva
- Nano Research Laboratory, Baku State University, Z. Khalilov 23, Baku AZ1148, Azerbaijan e-mail:
| | | | - Goncha Malik Eyvazova
- Nano Research Laboratory, Baku State University, Z. Khalilov 23, Baku AZ1148, Azerbaijan e-mail:
| | - Flora Vidadi Hajiyeva
- Nano Research Laboratory, Baku State University, Z. Khalilov 23, Baku AZ1148, Azerbaijan e-mail:
| | - Narmina Arthur Guliyeva
- Nano Research Laboratory, Baku State University, Z. Khalilov 23, Baku AZ1148, Azerbaijan e-mail:
| | - Solmaz Bayram Veliyeva
- Nano Research Laboratory, Baku State University, Z. Khalilov 23, Baku AZ1148, Azerbaijan e-mail:
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28
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Liakos IL, Abdellatif MH, Innocenti C, Scarpellini A, Carzino R, Brunetti V, Marras S, Brescia R, Drago F, Pompa PP. Antimicrobial Lemongrass Essential Oil-Copper Ferrite Cellulose Acetate Nanocapsules. Molecules 2016; 21:520. [PMID: 27104514 PMCID: PMC6273162 DOI: 10.3390/molecules21040520] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/13/2016] [Accepted: 04/14/2016] [Indexed: 11/16/2022] Open
Abstract
Cellulose acetate (CA) nanoparticles were combined with two antimicrobial agents, namely lemongrass (LG) essential oil and Cu-ferrite nanoparticles. The preparation method of CA nanocapsules (NCs), with the two antimicrobial agents, was based on the nanoprecipitation method using the solvent/anti-solvent technique. Several physical and chemical analyses were performed to characterize the resulting NCs and to study their formation mechanism. The size of the combined antimicrobial NCs was found to be ca. 220 nm. The presence of Cu-ferrites enhanced the attachment of LG essential oil into the CA matrix. The magnetic properties of the combined construct were weak, due to the shielding of Cu-ferrites from the polymeric matrix, making them available for drug delivery applications where spontaneous magnetization effects should be avoided. The antimicrobial properties of the NCs were significantly enhanced with respect to CA/LG only. This work opens novel routes for the development of organic/inorganic nanoparticles with exceptional antimicrobial activities.
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Affiliation(s)
- Ioannis L Liakos
- Smart Materials Group, Nanophysics Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Mohamed H Abdellatif
- Nanostructures Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Claudia Innocenti
- INSTM-RU of Florence and Department of Chemistry, University of Florence, Via Della Lastruccia 3-13, 50019 Sesto F.no, Firenze, Italy.
| | - Alice Scarpellini
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Riccardo Carzino
- Smart Materials Group, Nanophysics Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Virgilio Brunetti
- Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia (IIT), Via Barsanti 1, 73010 Lecce, Italy.
| | - Sergio Marras
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Rosaria Brescia
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Filippo Drago
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
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29
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An update on polysaccharide-based nanomaterials for antimicrobial applications. Appl Microbiol Biotechnol 2016; 100:2603-15. [PMID: 26830099 DOI: 10.1007/s00253-016-7315-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 01/01/2023]
Abstract
Scientific community has made a lot of efforts to combat the infectious diseases using antimicrobial agents, but these are associated with problems of development of multi-drug resistance and their adverse side effects. To tackle these challenges, nanocarrier-based drug delivery system using polysaccharides has received enormous attention in the past few years. These antimicrobial agents can become more efficacious when adsorbed, entrapped, or linked to polysaccharides. In addition, these nanocarrier-based systems provide an increase in the surface area of the drug and are able to achieve the targeted drug delivery as well as used for the synthesis of packaging materials with improved mechanical strength, barrier, and antimicrobial properties. This review focuses on potential therapeutic applications of nanocarrier-based drug delivery systems using polysaccharides for antimicrobial applications.
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30
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Ion A, Andronescu E, Rădulescu D, Rădulescu M, Iordache F, Vasile BȘ, Surdu AV, Albu MG, Maniu H, Chifiriuc MC, Grumezescu AM, Holban AM. Biocompatible 3D Matrix with Antimicrobial Properties. Molecules 2016; 21:E115. [PMID: 26805790 PMCID: PMC6273771 DOI: 10.3390/molecules21010115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/12/2016] [Accepted: 01/14/2016] [Indexed: 01/05/2023] Open
Abstract
The aim of this study was to develop, characterize and assess the biological activity of a new regenerative 3D matrix with antimicrobial properties, based on collagen (COLL), hydroxyapatite (HAp), β-cyclodextrin (β-CD) and usnic acid (UA). The prepared 3D matrix was characterized by Scanning Electron Microscopy (SEM), Fourier Transform Infrared Microscopy (FT-IRM), Transmission Electron Microscopy (TEM), and X-ray Diffraction (XRD). In vitro qualitative and quantitative analyses performed on cultured diploid cells demonstrated that the 3D matrix is biocompatible, allowing the normal development and growth of MG-63 osteoblast-like cells and exhibited an antimicrobial effect, especially on the Staphylococcus aureus strain, explained by the particular higher inhibitory activity of usnic acid (UA) against Gram positive bacterial strains. Our data strongly recommend the obtained 3D matrix to be used as a successful alternative for the fabrication of three dimensional (3D) anti-infective regeneration matrix for bone tissue engineering.
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Affiliation(s)
- Alberto Ion
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.
| | - Dragoș Rădulescu
- Department of Orthopedics and Traumatology, Bucharest University Hospital, 169 Splaiul Independentei, 050098 Bucharest, Romania.
| | - Marius Rădulescu
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.
| | - Florin Iordache
- Department of Fetal and Adult Stem Cell Therapy, Institute of Cellular Biology and Pathology of Romanian Academy, 8, B.P. Hasdeu, 050568 Bucharest, Romania.
| | - Bogdan Ștefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.
| | - Adrian Vasile Surdu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.
| | - Madalina Georgiana Albu
- Department of Collagen, Branch of Leather and Footwear Research, National Institute of Research and Development for Textile and Leather, 93 I. Minulescu Street, 031215 Bucharest, Romania.
| | - Horia Maniu
- Department of Fetal and Adult Stem Cell Therapy, Institute of Cellular Biology and Pathology of Romanian Academy, 8, B.P. Hasdeu, 050568 Bucharest, Romania.
| | - Mariana Carmen Chifiriuc
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalelor Lane, Sector 5, 77206 Bucharest, Romania.
- Research Institute of the University of Bucharest, Life, Environmental and Earth Sciences, Spl. Independentei 91-95, 0500088 Bucharest, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.
| | - Alina Maria Holban
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalelor Lane, Sector 5, 77206 Bucharest, Romania.
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31
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Yang CH, Wang LS, Chen SY, Huang MC, Li YH, Lin YC, Chen PF, Shaw JF, Huang KS. Microfluidic assisted synthesis of silver nanoparticle-chitosan composite microparticles for antibacterial applications. Int J Pharm 2016; 510:493-500. [PMID: 26780124 DOI: 10.1016/j.ijpharm.2016.01.010] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 12/16/2015] [Accepted: 01/05/2016] [Indexed: 11/26/2022]
Abstract
Silver nanoparticle (Ag NP)-loaded chitosan composites have numerous biomedical applications; however, fabricating uniform composite microparticles remains challenging. This paper presents a novel microfluidic approach for single-step and in situ synthesis of Ag NP-loaded chitosan microparticles. This proposed approach enables obtaining uniform and monodisperse Ag NP-loaded chitosan microparticles measuring several hundred micrometers. In addition, the diameter of the composites can be tuned by adjusting the flow on the microfluidic chip. The composite particles containing Ag NPs were characterized using UV-vis spectra and scanning electron microscopy-energy dispersive X-ray spectrometry data. The characteristic peaks of Ag NPs in the UV-vis spectra and the element mapping or pattern revealed the formation of nanosized silver particles. The results of antibacterial tests indicated that both chitosan and composite particles showed antibacterial ability, and Ag NPs could enhance the inhibition rate and exhibited dose-dependent antibacterial ability. Because of the properties of Ag NPs and chitosan, the synthesized composite microparticles can be used in several future potential applications, such as bactericidal agents for water disinfection, antipathogens, and surface plasma resonance enhancers.
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Affiliation(s)
- Chih-Hui Yang
- Department of Biological Science and Technology, I-Shou University, Taiwan
| | - Lung-Shuo Wang
- The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Taiwan; Department of Chinese Medicine, E-Da Hospital, Kaohsiung, Taiwan
| | - Szu-Yu Chen
- Department of Biological Science and Technology, I-Shou University, Taiwan; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Taiwan
| | - Mao-Chen Huang
- Department of Biological Science and Technology, I-Shou University, Taiwan; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Taiwan
| | - Ya-Hua Li
- Department of Biological Science and Technology, I-Shou University, Taiwan; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Taiwan
| | - Yun-Chul Lin
- Department of Biological Science and Technology, I-Shou University, Taiwan; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Taiwan
| | - Pei-Fan Chen
- Department of Biological Science and Technology, I-Shou University, Taiwan; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Taiwan
| | - Jei-Fu Shaw
- Department of Biological Science and Technology, I-Shou University, Taiwan.
| | - Keng-Shiang Huang
- The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Taiwan.
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32
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Taresco V, Francolini I, Padella F, Bellusci M, Boni A, Innocenti C, Martinelli A, D'Ilario L, Piozzi A. Design and characterization of antimicrobial usnic acid loaded-core/shell magnetic nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 52:72-81. [DOI: 10.1016/j.msec.2015.03.044] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/03/2015] [Accepted: 03/23/2015] [Indexed: 11/15/2022]
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Ivashchenko O, Lewandowski M, Peplińska B, Jarek M, Nowaczyk G, Wiesner M, Załęski K, Babutina T, Warowicka A, Jurga S. Synthesis and characterization of magnetite/silver/antibiotic nanocomposites for targeted antimicrobial therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:343-59. [PMID: 26117765 DOI: 10.1016/j.msec.2015.05.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/30/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
Abstract
The article is devoted to preparation and characterization of magnetite/silver/antibiotic nanocomposites for targeted antimicrobial therapy. Magnetite nanopowder was produced by thermochemical technique; silver was deposited on the magnetite nanoparticles in the form of silver clusters. Magnetite/silver nanocomposite was investigated by XRD, SEM, TEM, AFM, XPS, EDX techniques. Adsorptivity of magnetite/silver nanocomposite towards seven antibiotics from five different groups was investigated. It was shown that rifampicin, doxycycline, ceftriaxone, cefotaxime and doxycycline may be attached by physical adsorption to magnetite/silver nanocomposite. Electrostatic surfaces of antibiotics were modeled and possible mechanism of antibiotic attachment is considered in this article. Raman spectra of magnetite, magnetite/silver and magnetite/silver/antibiotic were collected. It was found that it is difficult to detect the bands related to antibiotics in the magnetite/silver/antibiotic nanocomposite spectra due to their overlap by the broad carbon bands of magnetite nanopowder. Magnetic measurements revealed that magnetic saturation of the magnetite/silver/antibiotic nanocomposites decreased on 6-19 % in comparison with initial magnetite nanopowder. Pilot study of antimicrobial properties of the magnetite/silver/antibiotic nanocomposites were performed towards Bacillus pumilus.
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Affiliation(s)
- Olena Ivashchenko
- Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Kyiv 03142, Ukraine; NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Mikołaj Lewandowski
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland; Institute of Molecular Physics, Polish Academy of Sciences, 60-179 Poznan, Poland
| | - Barbara Peplińska
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Marcin Jarek
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Maciej Wiesner
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Tetyana Babutina
- Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Kyiv 03142, Ukraine
| | - Alicja Warowicka
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland; Department of Macromolecular Physics, Adam Mickiewicz University, 61614 Poznan, Poland
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34
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Zhou HY, Cao PP, Li JB, Zhang FL, Ding PP. Preparation and release kinetics of carboxymethyl chitosan/cellulose acetate microspheres as drug delivery system. J Appl Polym Sci 2015. [DOI: 10.1002/app.42152] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hui Yun Zhou
- Department of Pharmaceutical Engineering; Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology; Luoyang China 471023
| | - Pei Pei Cao
- Department of Pharmaceutical Engineering; Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology; Luoyang China 471023
| | - Jun Bo Li
- Department of Pharmaceutical Engineering; Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology; Luoyang China 471023
| | - Fa Liang Zhang
- Department of Pharmaceutical Engineering; Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology; Luoyang China 471023
| | - Pei Pei Ding
- Department of Pharmaceutical Engineering; Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology; Luoyang China 471023
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35
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Bilcu M, Grumezescu AM, Oprea AE, Popescu RC, Mogoșanu GD, Hristu R, Stanciu GA, Mihailescu DF, Lazar V, Bezirtzoglou E, Chifiriuc MC. Efficiency of vanilla, patchouli and ylang ylang essential oils stabilized by iron oxide@C14 nanostructures against bacterial adherence and biofilms formed by Staphylococcus aureus and Klebsiella pneumoniae clinical strains. Molecules 2014; 19:17943-56. [PMID: 25375335 PMCID: PMC6271200 DOI: 10.3390/molecules191117943] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/22/2014] [Accepted: 10/29/2014] [Indexed: 12/11/2022] Open
Abstract
Biofilms formed by bacterial cells are associated with drastically enhanced resistance against most antimicrobial agents, contributing to the persistence and chronicization of the microbial infections and to therapy failure. The purpose of this study was to combine the unique properties of magnetic nanoparticles with the antimicrobial activity of three essential oils to obtain novel nanobiosystems that could be used as coatings for catheter pieces with an improved resistance to Staphylococcus aureus and Klebsiella pneumoniae clinical strains adherence and biofilm development. The essential oils of ylang ylang, patchouli and vanilla were stabilized by the interaction with iron oxide@C14 nanoparticles to be further used as coating agents for medical surfaces. Iron oxide@C14 was prepared by co-precipitation of Fe+2 and Fe+3 and myristic acid (C14) in basic medium. Vanilla essential oil loaded nanoparticles pelliculised on the catheter samples surface strongly inhibited both the initial adherence of S. aureus cells (quantified at 24 h) and the development of the mature biofilm quantified at 48 h. Patchouli and ylang-ylang essential oils inhibited mostly the initial adherence phase of S. aureus biofilm development. In the case of K. pneumoniae, all tested nanosystems exhibited similar efficiency, being active mostly against the adherence K. pneumoniae cells to the tested catheter specimens. The new nanobiosystems based on vanilla, patchouli and ylang-ylang essential oils could be of a great interest for the biomedical field, opening new directions for the design of film-coated surfaces with anti-adherence and anti-biofilm properties.
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Affiliation(s)
- Maxim Bilcu
- Microbiology Department, Faculty of Biology, Research Institute of the University of Bucharest, University of Bucharest, Aleea Portocalelor No. 1-3, 060101 Bucharest, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No. 1-7, 011061 Bucharest, Romania.
| | - Alexandra Elena Oprea
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No. 1-7, 011061 Bucharest, Romania.
| | - Roxana Cristina Popescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No. 1-7, 011061 Bucharest, Romania.
| | - George Dan Mogoșanu
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 2 Petru Rareş Street, 200349 Craiova, Romania.
| | - Radu Hristu
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania.
| | - George A Stanciu
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania.
| | - Dan Florin Mihailescu
- Microbiology Department, Faculty of Biology, Research Institute of the University of Bucharest, University of Bucharest, Aleea Portocalelor No. 1-3, 060101 Bucharest, Romania.
| | - Veronica Lazar
- Microbiology Department, Faculty of Biology, Research Institute of the University of Bucharest, University of Bucharest, Aleea Portocalelor No. 1-3, 060101 Bucharest, Romania.
| | - Eugenia Bezirtzoglou
- Laboratory of Microbiology, Biotechnology and Hygiene, Department of Food Science and Technology, Faculty of Agricultural Development, Democritus University of Thrace, 68200 Orestiada, Greece.
| | - Mariana Carmen Chifiriuc
- Microbiology Department, Faculty of Biology, Research Institute of the University of Bucharest, University of Bucharest, Aleea Portocalelor No. 1-3, 060101 Bucharest, Romania.
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36
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Magnetite nanostructures as novel strategies for anti-infectious therapy. Molecules 2014; 19:12710-26. [PMID: 25140449 PMCID: PMC6271397 DOI: 10.3390/molecules190812710] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 08/08/2014] [Accepted: 08/11/2014] [Indexed: 01/15/2023] Open
Abstract
This review highlights the current situation of antimicrobial resistance and the use of magnetic nanoparticles (MNPs) in developing novel routes for fighting infectious diseases. The most important two directions developed recently are: (i) improved delivery of antimicrobial compounds based on a drastic decrease of the minimal inhibition concentration (MIC) of the drug used independently; and (ii) inhibition of microbial attachment and biofilm development on coated medical surfaces. These new directions represent promising alternatives in the development of new strategies to eradicate and prevent microbial infections that involve resistant and biofilm-embedded bacteria. Recent promising applications of MNPs, as the development of delivery nanocarriers and improved nanovehicles for the therapy of different diseases are discussed, together with the mechanisms of microbial inhibition.
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37
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Limban C, Missir AV, Grumezescu AM, Oprea AE, Grumezescu V, Vasile BS, Socol G, Trușcă R, Caproiu MT, Chifiriuc MC, Gălățeanu B, Costache M, Morușciag L, Pîrcălăbioru G, Nuță DC. Bioevaluation of novel anti-biofilm coatings based on PVP/Fe3O4 nanostructures and 2-((4-ethylphenoxy)methyl)-N- (arylcarbamothioyl)benzamides. Molecules 2014; 19:12011-30. [PMID: 25120054 PMCID: PMC6270780 DOI: 10.3390/molecules190812011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 07/24/2014] [Accepted: 07/25/2014] [Indexed: 12/27/2022] Open
Abstract
Novel derivatives were prepared by reaction of aromatic amines with 2-(4-ethylphenoxymethyl)benzoyl isothiocyanate, affording the N-[2-(4-ethylphenoxymethyl) benzoyl]-Nꞌ-(substituted phenyl)thiourea. Structural elucidation of these compounds was performed by IR, NMR spectroscopy and elemental analysis. The new compounds were used in combination with Fe3O4 and polyvinylpyrrolidone (PVP) for the coating of medical surfaces. In our experiments, catheter pieces were coated by Matrix Assisted Pulsed Laser Evaporation (MAPLE) technique. The microbial adherence ability was investigated in 6 multi-well plates by using culture based methods. The obtained surfaces were also assessed for their cytotoxicity with respect to osteoblast cells, by using fluorescence microscopy and MTT assay. The prepared surfaces by advanced laser processing inhibited the adherence and biofilm development ability of Staphylococcus aureus and Pseudomonas aeruginosa tested strains while cytotoxic effects on the 3T3-E1 preosteoblasts embedded in layer shaped alginate hydrogels were not observed. These results suggest that the obtained medical surfaces, based on the novel thiourea derivatives and magnetic nanoparticles with a polymeric shell could represent a promising alternative for the development of new and effective anti-infective strategies.
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Affiliation(s)
- Carmen Limban
- Department of Pharmaceutical Chemistry, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia No. 6, 020956 Bucharest, Romania.
| | - Alexandru Vasile Missir
- Department of Pharmaceutical Chemistry, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia No. 6, 020956 Bucharest, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No. 1-7,011061 Bucharest, Romania.
| | - Alexandra Elena Oprea
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No. 1-7,011061 Bucharest, Romania.
| | - Valentina Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No. 1-7,011061 Bucharest, Romania.
| | - Bogdan Stefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No. 1-7,011061 Bucharest, Romania.
| | - Gabriel Socol
- National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O. Box MG-36, Bucharest-Magurele, Romania.
| | - Roxana Trușcă
- Metav-CD S.A., 31Rosetti Str., 020015 Bucharest, Romania.
| | - Miron Teodor Caproiu
- The Organic Chemistry Center of Romanian Academy "Costin C.D. Nenitescu" Bucharest, Splaiul Independentei, 202B, 77208 Bucharest, Romania.
| | - Mariana Carmen Chifiriuc
- Department of Microbiology, Faculty of Biology, University of Bucharest, Research Institute ofUniversity of Bucharest, Aleea Portocalelor No. 1-3, 060101 Bucharest, Romania.
| | - Bianca Gălățeanu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independenței, 050095 Bucharest, Romania.
| | - Marieta Costache
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independenței, 050095 Bucharest, Romania.
| | - Laurențiu Morușciag
- Department of Pharmaceutical Chemistry, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia No. 6, 020956 Bucharest, Romania.
| | | | - Diana Camelia Nuță
- Department of Pharmaceutical Chemistry, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia No. 6, 020956 Bucharest, Romania.
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Holban AM, Grumezescu V, Grumezescu AM, Vasile BŞ, Truşcă R, Cristescu R, Socol G, Iordache F. Antimicrobial nanospheres thin coatings prepared by advanced pulsed laser technique. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:872-880. [PMID: 24991524 PMCID: PMC4077416 DOI: 10.3762/bjnano.5.99] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/11/2014] [Indexed: 06/03/2023]
Abstract
We report on the fabrication of thin coatings based on polylactic acid-chitosan-magnetite-eugenol (PLA-CS-Fe3O4@EUG) nanospheres by matrix assisted pulsed laser evaporation (MAPLE). Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) investigation proved that the homogenous Fe3O4@EUG nanoparticles have an average diameter of about 7 nm, while the PLA-CS-Fe3O4@EUG nanospheres diameter sizes range between 20 and 80 nm. These MAPLE-deposited coatings acted as bioactive nanosystems and exhibited a great antimicrobial effect by impairing the adherence and biofilm formation of Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa) bacteria strains. Moreover, the obtained nano-coatings showed a good biocompatibility and facilitated the normal development of human endothelial cells. These nanosystems may be used as efficient alternatives in treating and preventing bacterial infections.
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Affiliation(s)
- Alina Maria Holban
- University of Bucharest, Faculty of Biology, Microbiology Department, Aleea Portocalelor no 1–3, 060101 Bucharest, Romania
| | - Valentina Grumezescu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1–7, 011061 Bucharest, Romania
- National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O.Box MG-36, Bucharest-Magurele, Romania
| | - Alexandru Mihai Grumezescu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1–7, 011061 Bucharest, Romania
| | - Bogdan Ştefan Vasile
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1–7, 011061 Bucharest, Romania
| | - Roxana Truşcă
- S.C. Metav-CD S.A., 31 Rosetti Str., 020015 Bucharest, Romania
| | - Rodica Cristescu
- National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O.Box MG-36, Bucharest-Magurele, Romania
| | - Gabriel Socol
- National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O.Box MG-36, Bucharest-Magurele, Romania
| | - Florin Iordache
- Flow Cytometry and Cell Therapy Laboratory, Institute of Cellular Biology and Pathology “Nicolae Simionescu” (ICBP), Bucharest, Romania
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Grumezescu AM, Gestal MC, Holban AM, Grumezescu V, Vasile BS, Mogoantă L, Iordache F, Bleotu C, Mogoșanu GD. Biocompatible Fe3O4 increases the efficacy of amoxicillin delivery against Gram-positive and Gram-negative bacteria. Molecules 2014; 19:5013-27. [PMID: 24759068 PMCID: PMC6270688 DOI: 10.3390/molecules19045013] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 04/09/2014] [Accepted: 04/14/2014] [Indexed: 11/16/2022] Open
Abstract
This paper reports the synthesis and characterization of amoxicillin- functionalized magnetite nanostructures (Fe3O4@AMO), revealing and discussing several biomedical applications of these nanomaterials. Our results proved that 10 nm Fe3O4@AMO nanoparticles does not alter the normal cell cycle progression of cultured diploid cells, and an in vivo murine model confirms that the nanostructures disperse through the host body and tend to localize in particular sites and organs. The nanoparticles were found clustered especially in the lungs, kidneys and spleen, next to the blood vessels at this level, while being totally absent in the brain and liver, suggesting that they are circulated through the blood flow and have low toxicity. Fe3O4@AMO has the ability to be easily circulated through the body and optimizations may be done so these nanostructures cluster to a specific target region. Functionalized magnetite nanostructures proved a great antimicrobial effect, being active against both the Gram positive pathogen S. aureus and the Gram negative pathogen E. coli. The fabricated nanostructures significantly reduced the minimum inhibitory concentration (MIC) of the active drug. This result has a great practical relevance, since the functionalized nanostructures may be used for decreasing the therapeutic doses which usually manifest great severe side effects, when administrated in high doses. Fe3O4@AMO represents also a suitable approach for the development of new alternative strategies for improving the activity of therapeutic agents by targeted delivery and controlled release.
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Affiliation(s)
- Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Polizu Street no 1-7, 011061 Bucharest, Romania.
| | - Monica Cartelle Gestal
- School of Medicine, Faculty of Public Health, SENESCYT 9 de Octubre N22-64 y Ramírez Dávalos - Casa Patrimonial, 170517 Quito, Ecuador.
| | - Alina Maria Holban
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, Aleea Portocalelor no 1-3, 060101 Bucharest, Romania.
| | - Valentina Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Polizu Street no 1-7, 011061 Bucharest, Romania.
| | - Bogdan Stefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Polizu Street no 1-7, 011061 Bucharest, Romania.
| | - Laurențiu Mogoantă
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova, 2 Petru Rareş Street, 200349 Craiova, Romania.
| | - Florin Iordache
- Institute of Cellular Biology and Pathology of Romanian Academy, "Nicolae Simionescu", Department of Fetal and Adult Stem Cell Therapy, 8, B.P. Hasdeu, 050568 Bucharest, Romania.
| | - Coralia Bleotu
- Stefan S. Nicolau Institute of Virology, 285 Mihai Bravu, 030304 Bucharest, Romania.
| | - George Dan Mogoșanu
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 2 Petru Rareş Street, 200349 Craiova, Romania.
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Grumezescu V, Holban AM, Grumezescu AM, Socol G, Ficai A, Vasile BS, Truscă R, Bleotu C, Lazar V, Chifiriuc CM, Mogosanu GD. Usnic acid-loaded biocompatible magnetic PLGA-PVA microsphere thin films fabricated by MAPLE with increased resistance to staphylococcal colonization. Biofabrication 2014; 6:035002. [PMID: 24722318 DOI: 10.1088/1758-5082/6/3/035002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Due to their persistence and resistance to the current therapeutic approaches, Staphylococcus aureus biofilm-associated infections represent a major cause of morbidity and mortality in the hospital environment. Since (+)-usnic acid (UA), a secondary lichen metabolite, possesses antimicrobial activity against Gram-positive cocci, including S. aureus, the aim of this study was to load magnetic polylactic-co-glycolic acid-polyvinyl alcohol (PLGA-PVA) microspheres with UA, then to obtain thin coatings using matrix-assisted pulsed laser evaporation and to quantitatively assess the capacity of the bio-nano-active modified surface to control biofilm formation by S. aureus, using a culture-based assay. The UA-loaded microspheres inhibited both the initial attachment of S. aureus to the coated surfaces, as well as the development of mature biofilms. In vitro bioevalution tests performed on the fabricated thin films revealed great biocompatibility, which may endorse them as competitive candidates for the development of improved non-toxic surfaces resistant to S. aureus colonization and as scaffolds for stem cell cultivation and tissue engineering.
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Affiliation(s)
- V Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street no 1-7, 011061 Bucharest, Romania. Lasers Department, Plasma and Radiation Physics, National Institute for Lasers, PO Box MG-36, Bucharest-Magurele, Romania
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Bertesteanu S, Triaridis S, Stankovic M, Lazar V, Chifiriuc MC, Vlad M, Grigore R. Polymicrobial wound infections: pathophysiology and current therapeutic approaches. Int J Pharm 2013; 463:119-26. [PMID: 24361265 DOI: 10.1016/j.ijpharm.2013.12.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 12/07/2013] [Accepted: 12/10/2013] [Indexed: 12/28/2022]
Abstract
Acute and chronic wounds represent a very common health problem in the entire world. The dermal wounds are colonized by aerobic and anaerobic bacterial and fungal strains, most of them belonging to the resident microbiota of the surrounding skin, oral cavity and gut, or from the external environment, forming polymicrobial communities called biofilms, which are prevalent especially in chronic wounds. A better understanding of the precise mechanisms by which microbial biofilms delay repair processes together with optimizing methods for biofilm detection and prevention may enhance opportunities for chronic wounds healing. The purpose of this minireview is to assess the role of polymicrobial biofilms in the occurrence and evolution of wound infections, as well as the current and future preventive and therapeutic strategies used for the management of polymicrobial wound infections.
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Affiliation(s)
- Serban Bertesteanu
- "Carol Davila" University of Medicine and Pharmacy, Traian Vuia no. 6, Bucharest 020956, Romania; Otorhinolaryngology, "Carol Davila University" of Medicine and Pharmacy, Traian Vuia no. 6, Bucharest 020956, Romania
| | - Stefanos Triaridis
- Otolaryngology Department, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, Greece
| | - Milan Stankovic
- Otolaryngology and Ophthalmology Department, Faculty of Medicine, University of Nis, Serbia
| | - Veronica Lazar
- University of Bucharest, Faculty of Biology, Microbiology Department, Ale. Portocalelor 1-3, 60101 Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- University of Bucharest, Faculty of Biology, Microbiology Department, Ale. Portocalelor 1-3, 60101 Bucharest, Romania.
| | - Mihaela Vlad
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Material Science, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Raluca Grigore
- "Carol Davila" University of Medicine and Pharmacy, Traian Vuia no. 6, Bucharest 020956, Romania; Otorhinolaryngology, "Carol Davila University" of Medicine and Pharmacy, Traian Vuia no. 6, Bucharest 020956, Romania
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