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Gherasim O, Grumezescu AM, Grumezescu V, Negut I, Dumitrescu MF, Stan MS, Nica IC, Holban AM, Socol G, Andronescu E. Bioactive Coatings Based on Hydroxyapatite, Kanamycin, and Growth Factor for Biofilm Modulation. Antibiotics (Basel) 2021; 10:160. [PMID: 33562515 PMCID: PMC7914914 DOI: 10.3390/antibiotics10020160] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/22/2021] [Accepted: 02/02/2021] [Indexed: 02/07/2023] Open
Abstract
The occurrence of opportunistic local infections and improper integration of metallic implants results in severe health conditions. Protective and tunable coatings represent an attractive and challenging selection for improving the metallic devices' biofunctional performances to restore or replace bone tissue. Composite materials based on hydroxyapatite (HAp), Kanamycin (KAN), and fibroblast growth factor 2 (FGF2) are herein proposed as multifunctional coatings for hard tissue implants. The superior cytocompatibility of the obtained composite coatings was evidenced by performing proliferation and morphological assays on osteoblast cell cultures. The addition of FGF2 proved beneficial concerning the metabolic activity, adhesion, and spreading of cells. The KAN-embedded coatings exhibited significant inhibitory effects against bacterial biofilm development for at least two days, the results being superior in the case of Gram-positive pathogens. HAp-based coatings embedded with KAN and FGF2 protein are proposed as multifunctional materials with superior osseointegration potential and the ability to reduce device-associated infections.
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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.); (M.F.D.); (M.S.S.); (E.A.)
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (I.N.); (G.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, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (M.F.D.); (M.S.S.); (E.A.)
- Research Institute of the University of Bucharest–ICUB, University of Bucharest, 050657 Bucharest, Romania; (I.C.N.); (A.M.H.)
| | - Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (I.N.); (G.S.)
| | - Irina Negut
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (I.N.); (G.S.)
| | - Marius Florin Dumitrescu
- 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.); (M.F.D.); (M.S.S.); (E.A.)
| | - Miruna Silvia Stan
- 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.); (M.F.D.); (M.S.S.); (E.A.)
- Research Institute of the University of Bucharest–ICUB, University of Bucharest, 050657 Bucharest, Romania; (I.C.N.); (A.M.H.)
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Ionela Cristina Nica
- Research Institute of the University of Bucharest–ICUB, University of Bucharest, 050657 Bucharest, Romania; (I.C.N.); (A.M.H.)
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Alina Maria Holban
- Research Institute of the University of Bucharest–ICUB, University of Bucharest, 050657 Bucharest, Romania; (I.C.N.); (A.M.H.)
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 077206 Bucharest, Romania
| | - Gabriel Socol
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (I.N.); (G.S.)
| | - Ecaterina Andronescu
- 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.); (M.F.D.); (M.S.S.); (E.A.)
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Geană EI, Ciucure CT, Ionete RE, Ciocârlan A, Aricu A, Ficai A, Andronescu E. Profiling of Phenolic Compounds and Triterpene Acids of Twelve Apple ( Malus domestica Borkh.) Cultivars. Foods 2021; 10:foods10020267. [PMID: 33525694 PMCID: PMC7911497 DOI: 10.3390/foods10020267] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/18/2021] [Accepted: 01/22/2021] [Indexed: 02/02/2023] Open
Abstract
Apple (Malus domestica Borkh.), a popular and widely cultivated fruit world-wide, contains bioactive compounds responsible for their health benefits. Here we report the amounts of some bioactive compounds: two major triterpenes (oleanolic and ursolic acids) and polyphenols (phenolic acids, flavan-3-ols, flavonoids and t-resveratrol), together with bioactive properties of twelve apple cultivars measured by chromatographic and spectrophotometric methods. Significant variations were found comparing the bioactive potential of the investigated cultivars. High contents of phenolic acids were identified in the Montuan, Golden Delicious and Cretesc cultivars, while the most flavonoid dominant was the Richard cultivar. Starkrimson, Jonatan, Beliy Naliv and Richard cultivars present higher antioxidant capacity. Oleanolic acid ranged from 11 to 83 mg/g apple extract, while ursolic acid ranged from 55 to 436 mg/g apple extract, with higher amounts in Richard and Montuan cultivars. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) allowed the discrimination of apple cultivars depending on polyphenolic and triterpene acids composition. Caffeic acid, gallic acid and epicatechin were identified as the main bioactive compounds in Starkrimson, Jonathan, Beliy Naliv and Richard cultivars, while ursolic and oleanolic acids were identified in high amounts in Richard, Montuan, Golden Delicious, Idared and Beliy Naliv apple cultivars. The results obtained in this study will contribute to the understanding of the bioactive composition of apples as well as the importance of their capitalization to obtain value-added products that promote human health.
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Affiliation(s)
- Elisabeta-Irina Geană
- National Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI Rm. Valcea, 4th Uzinei Street, PO Raureni, Box 7, 240050 Rm Valcea, Romania; (E.-I.G.); (C.T.C.); (R.E.I.)
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1-7 Polizu Str., 011061 Bucharest, Romania;
| | - Corina Teodora Ciucure
- National Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI Rm. Valcea, 4th Uzinei Street, PO Raureni, Box 7, 240050 Rm Valcea, Romania; (E.-I.G.); (C.T.C.); (R.E.I.)
| | - Roxana Elena Ionete
- National Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI Rm. Valcea, 4th Uzinei Street, PO Raureni, Box 7, 240050 Rm Valcea, Romania; (E.-I.G.); (C.T.C.); (R.E.I.)
| | - Alexandru Ciocârlan
- Institute of Chemistry, Academiei Str. 3, MD-2028 Chisinau, Moldova; (A.C.); (A.A.)
| | - Aculina Aricu
- Institute of Chemistry, Academiei Str. 3, MD-2028 Chisinau, Moldova; (A.C.); (A.A.)
| | - Anton Ficai
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1-7 Polizu Str., 011061 Bucharest, Romania;
- Academy of Romanian Scientists, Ilfov St. 3, 050045 Bucharest, Romania
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1-7 Polizu Str., 011061 Bucharest, Romania;
- Academy of Romanian Scientists, Ilfov St. 3, 050045 Bucharest, Romania
- Correspondence:
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Abstract
Generally, biosensors are designed to translate physical, chemical, or biological events into measurable signals, thus offering qualitative and/or quantitative information regarding the target analytes. While the biosensor field has received considerable scientific interest, integrating this technology with microfluidics could further bring significant improvements in terms of sensitivity and specificity, resolution, automation, throughput, reproducibility, reliability, and accuracy. In this manner, biosensors-on-chip (BoC) could represent the bridging gap between diagnostics in central laboratories and diagnostics at the patient bedside, bringing substantial advancements in point-of-care (PoC) diagnostic applications. In this context, the aim of this manuscript is to provide an up-to-date overview of BoC system development and their most recent application towards the diagnosis of cancer, infectious diseases, and neurodegenerative disorders.
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Affiliation(s)
- Cristina Chircov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.C.); (A.C.B.); (E.A.)
| | - Alexandra Cătălina Bîrcă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.C.); (A.C.B.); (E.A.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.C.); (A.C.B.); (E.A.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.C.); (A.C.B.); (E.A.)
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Geanaliu-Nicolae RE, Andronescu E. Blended Natural Support Materials-Collagen Based Hydrogels Used in Biomedicine. Materials (Basel) 2020; 13:E5641. [PMID: 33321865 PMCID: PMC7764196 DOI: 10.3390/ma13245641] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 01/17/2023]
Abstract
Due to their unique properties-the are biocompatible, easily accessible, and inexpensive with programmable properties-biopolymers are used in pharmaceutical and biomedical research, as well as in cosmetics and food. Collagen is one of the most-used biomaterials in biomedicine, being the most abundant protein in animals with a triple helices structure, biocompatible, biomimetic, biodegradable, and hemostatic. Its disadvantages are its poor mechanical and thermal properties and enzymatic degradation. In order to solve this problem and to use its benefits, collagen can be used blended with other biomaterials such as alginate, chitosan, and cellulose. The purpose of this review article is to offer a brief paper with updated information on blended collagen-based formulations and their potential application in biomedicine.
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Affiliation(s)
- Ruxandra-Elena Geanaliu-Nicolae
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania;
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Lungu II, Nistorescu S, Badea MA, Petre AM, Udrea AM, Banici AM, Fleacă C, Andronescu E, Dinischiotu A, Dumitrache F, Staicu A, Balaș M. Doxorubicin-Conjugated Iron Oxide Nanoparticles Synthesized by Laser Pyrolysis: In Vitro Study on Human Breast Cancer Cells. Polymers (Basel) 2020; 12:E2799. [PMID: 33256060 PMCID: PMC7760716 DOI: 10.3390/polym12122799] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/25/2022] Open
Abstract
Even today, breast cancer remains a global public problem, with a high mortality rate among women. Nanoparticle (NP) based systems are developed to enhance drug delivery, reducing the toxic effect of medicine molecules. By using iron oxide nanoparticles for cancer treatment, several advantages were highlighted: the ability to target specific locations derived from their magnetic properties and reduced side effects. The aim of this study was to examine on breast cancer cell line the anticancer potential of γ-Fe2O3 NPs loaded with doxorubicin (DOX) and stabilized with carboxymethylcellulose sodium (CMCNa). The γ-Fe2O3 NPs were synthesized by laser pyrolysis technique and their nanometric size and crystallinity were confirmed by X-ray diffraction and transmission electron microscopy. The loading efficiency was estimated by using absorption and fluorescence spectroscopy. The DOX conjugated//CMCNa coated γ-Fe2O3 NPs proved through the biological studies to have a good anticancer effect through the inhibition of tumoral cell proliferation, disruption of the cellular membrane, induction of cell death and reduced effects on normal breast cells. Our data showed that DOX cytotoxicity increases significantly when conjugated with ɣ-Fe2O3 and ɣ-Fe2O3_CMCNa, a 50% reduction of cancer cell viability was obtained with a concentration around 0.1 µg/mL.
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Affiliation(s)
- Iulia Ioana Lungu
- National Institute of Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania; (I.I.L.); (S.N.); (A.-M.U.); (A.-M.B.); (C.F.)
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Simona Nistorescu
- National Institute of Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania; (I.I.L.); (S.N.); (A.-M.U.); (A.-M.B.); (C.F.)
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (M.A.B.); (A.-M.P.); (A.D.)
| | - Mădălina Andreea Badea
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (M.A.B.); (A.-M.P.); (A.D.)
| | - Andreea-Mihaela Petre
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (M.A.B.); (A.-M.P.); (A.D.)
| | - Ana-Maria Udrea
- National Institute of Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania; (I.I.L.); (S.N.); (A.-M.U.); (A.-M.B.); (C.F.)
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (M.A.B.); (A.-M.P.); (A.D.)
| | - Ana-Maria Banici
- National Institute of Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania; (I.I.L.); (S.N.); (A.-M.U.); (A.-M.B.); (C.F.)
| | - Claudiu Fleacă
- National Institute of Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania; (I.I.L.); (S.N.); (A.-M.U.); (A.-M.B.); (C.F.)
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (M.A.B.); (A.-M.P.); (A.D.)
| | - Florian Dumitrache
- National Institute of Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania; (I.I.L.); (S.N.); (A.-M.U.); (A.-M.B.); (C.F.)
| | - Angela Staicu
- National Institute of Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Ilfov, Romania; (I.I.L.); (S.N.); (A.-M.U.); (A.-M.B.); (C.F.)
| | - Mihaela Balaș
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (M.A.B.); (A.-M.P.); (A.D.)
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Stoica AE, Grumezescu AM, Hermenean AO, Andronescu E, Vasile BS. Scar-Free Healing: Current Concepts and Future Perspectives. Nanomaterials (Basel) 2020; 10:E2179. [PMID: 33142891 PMCID: PMC7693882 DOI: 10.3390/nano10112179] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/15/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023]
Abstract
Every year, millions of people develop scars due to skin injuries after trauma, surgery, or skin burns. From the beginning of wound healing development, scar hyperplasia, and prolonged healing time in wound healing have been severe problems. Based on the difference between adult and fetal wound healing processes, many promising therapies have been developed to decrease scar formation in skin wounds. Currently, there is no good or reliable therapy to cure or prevent scar formation. This work briefly reviews the engineering methods of scarless wound healing, focusing on regenerative biomaterials and different cytokines, growth factors, and extracellular components in regenerative wound healing to minimize skin damage cell types, and scar formation.
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Affiliation(s)
- Alexandra Elena Stoica
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 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 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
| | - Anca Oana Hermenean
- Institute of Life Sciences, Vasile Goldiş Western University of Arad, 310025 Arad, 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 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
| | - Bogdan Stefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
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Iacob AT, Drăgan M, Ionescu OM, Profire L, Ficai A, Andronescu E, Confederat LG, Lupașcu D. An Overview of Biopolymeric Electrospun Nanofibers Based on Polysaccharides for Wound Healing Management. Pharmaceutics 2020; 12:E983. [PMID: 33080849 PMCID: PMC7589858 DOI: 10.3390/pharmaceutics12100983] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 12/13/2022] Open
Abstract
Currently, despite the thoroughgoing scientific research carried out in the area of wound healing management, the treatment of skin injuries, regardless of etiology remains a big provocation for health care professionals. An optimal wound dressing should be nontoxic, non-adherent, non-allergenic, should also maintain a humid medium at the wound interfacing, and be easily removed without trauma. For the development of functional and bioactive dressings, they must meet different conditions such as: The ability to remove excess exudates, to allow gaseous interchange, to behave as a barrier to microbes and to external physical or chemical aggressions, and at the same time to have the capacity of promoting the process of healing by stimulating other intricate processes such as differentiation, cell adhesion, and proliferation. Over the past several years, various types of wound dressings including hydrogels, hydrocolloids, films, foams, sponges, and micro/nanofibers have been formulated, and among them, the electrospun nanofibrous mats received an increased interest from researchers due to the numerous advantages and their intrinsic properties. The drug-embedded nanofibers are the potential candidates for wound dressing application by virtue of: Superior surface area-to volume ratio, enormous porosity (can allow oxy-permeability) or reticular nano-porosity (can inhibit the microorganisms'adhesion), structural similitude to the skin extracellular matrix, and progressive electrospinning methodology, which promotes a prolonged drug release. The reason that we chose to review the formulation of electrospun nanofibers based on polysaccharides as dressings useful in wound healing was based on the ever-growing research in this field, research that highlighted many advantages of the nanofibrillary network, but also a marked versatility in terms of numerous active substances that can be incorporated for rapid and infection-free tissue regeneration. In this review, we have extensively discussed the recent advancements performed on electrospun nanofibers (eNFs) formulation methodology as wound dressings, and we focused as well on the entrapment of different active biomolecules that have been incorporated on polysaccharides-based nanofibers, highlighting those bioagents capable of improving the healing process. In addition, in vivo tests performed to support their increased efficacy were also listed, and the advantages of the polysaccharide nanofiber-based wound dressings compared to the traditional ones were emphasized.
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Affiliation(s)
- Andreea-Teodora Iacob
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Maria Drăgan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Oana-Maria Ionescu
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Lenuța Profire
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucuresti, Romania;
- Academy of Romanian Scientists, Ilfov st 3, 050085 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, 060042 Bucuresti, Romania;
- Academy of Romanian Scientists, Ilfov st 3, 050085 Bucharest, Romania
| | - Luminița Georgeta Confederat
- Department of Preventive Medicine and Interdisciplinarity, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania;
| | - Dan Lupașcu
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
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Motelica L, Ficai D, Ficai A, Oprea OC, Kaya DA, Andronescu E. Biodegradable Antimicrobial Food Packaging: Trends and Perspectives. Foods 2020; 9:E1438. [PMID: 33050581 PMCID: PMC7601795 DOI: 10.3390/foods9101438] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/01/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023] Open
Abstract
This review presents a perspective on the research trends and solutions from recent years in the domain of antimicrobial packaging materials. The antibacterial, antifungal, and antioxidant activities can be induced by the main polymer used for packaging or by addition of various components from natural agents (bacteriocins, essential oils, natural extracts, etc.) to synthetic agents, both organic and inorganic (Ag, ZnO, TiO2 nanoparticles, synthetic antibiotics etc.). The general trend for the packaging evolution is from the inert and polluting plastic waste to the antimicrobial active, biodegradable or edible, biopolymer film packaging. Like in many domains this transition is an evolution rather than a revolution, and changes are coming in small steps. Changing the public perception and industry focus on the antimicrobial packaging solutions will enhance the shelf life and provide healthier food, thus diminishing the waste of agricultural resources, but will also reduce the plastic pollution generated by humankind as most new polymers used for packaging are from renewable sources and are biodegradable. Polysaccharides (like chitosan, cellulose and derivatives, starch etc.), lipids and proteins (from vegetal or animal origin), and some other specific biopolymers (like polylactic acid or polyvinyl alcohol) have been used as single component or in blends to obtain antimicrobial packaging materials. Where the package's antimicrobial and antioxidant activities need a larger spectrum or a boost, certain active substances are embedded, encapsulated, coated, grafted into or onto the polymeric film. This review tries to cover the latest updates on the antimicrobial packaging, edible or not, using as support traditional and new polymers, with emphasis on natural compounds.
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Affiliation(s)
- Ludmila Motelica
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (E.A.)
| | - Denisa Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (E.A.)
| | - Anton Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (E.A.)
- Section of Chemical Sciences, Academy of Romanian Scientists, 050045 Bucharest, Romania
| | - Ovidiu Cristian Oprea
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (E.A.)
| | - Durmuş Alpaslan Kaya
- Department of Field Crops, Faculty of Agriculture, Hatay Mustafa Kemal University, 31030 Antakya Hatay, Turkey;
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (L.M.); (D.F.); (A.F.); (E.A.)
- Section of Chemical Sciences, Academy of Romanian Scientists, 050045 Bucharest, Romania
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Popescu RC, Straticiuc M, Mustăciosu C, Temelie M, Trușcă R, Vasile BȘ, Boldeiu A, Mirea D, Andrei RF, Cenușă C, Mogoantă L, Mogoșanu GD, Andronescu E, Radu M, Veldwijk MR, Savu DI. Enhanced Internalization of Nanoparticles Following Ionizing Radiation Leads to Mitotic Catastrophe in MG-63 Human Osteosarcoma Cells. Int J Mol Sci 2020; 21:ijms21197220. [PMID: 33007844 PMCID: PMC7583846 DOI: 10.3390/ijms21197220] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 12/13/2022] Open
Abstract
This study aims to investigate whether ionizing radiation combined with doxorubicin-conjugated iron oxide nanoparticles (NP-DOX) improves the internalization and cytotoxic effects of the nano-carrier-mediated drug delivery in MG-63 human osteosarcoma cells. NP-DOX was designed and synthesized using the co-precipitation method. Highly stable and crystalline nanoparticles conjugated with DOX were internalized in MG-63 cells through macropinocytosis and located in the perinuclear area. Higher nanoparticles internalization in MG-63 cells previously exposed to 1 Gy X-rays was correlated with an early accumulation of cells in G2/M, starting at 12 h after treatment. After 48 h, the application of the combined treatment led to higher cytotoxic effects compared to the individual treatment, with a reduction in the metabolic capacity and unrepaired DNA breaks, whilst a low percent of arrested cells, contributing to the commitment of mitotic catastrophe. NP-DOX showed hemocompatibility and no systemic cytotoxicity, nor histopathological alteration of the main organs.
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Affiliation(s)
- Roxana Cristina Popescu
- Department of Life and Environmental Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (R.C.P.); (C.M.); (M.T.); (M.R.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, “Politehnica” University of Bucharest (UPB), 1-7 Polizu Street, 011061 Bucharest, Romania;
| | - Mihai Straticiuc
- Department of Applied Nuclear Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (M.S.); (D.M.); (R.F.A.)
| | - Cosmin Mustăciosu
- Department of Life and Environmental Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (R.C.P.); (C.M.); (M.T.); (M.R.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, “Politehnica” University of Bucharest (UPB), 1-7 Polizu Street, 011061 Bucharest, Romania;
| | - Mihaela Temelie
- Department of Life and Environmental Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (R.C.P.); (C.M.); (M.T.); (M.R.)
| | - Roxana Trușcă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National Research Center for Micro and Nanomaterials, “Politehnica” University of Bucharest (UPB), 313 Splaiul Independenţei, 060042 Bucharest, Romania; (R.T.); (B.Ș.V.)
| | - Bogdan Ștefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National Research Center for Micro and Nanomaterials, “Politehnica” University of Bucharest (UPB), 313 Splaiul Independenţei, 060042 Bucharest, Romania; (R.T.); (B.Ș.V.)
| | - Adina Boldeiu
- Laboratory of Nanobiotechnology, National Institute for Research and Development in Microtechnologies (IMT), 12A Erou Iancu Nicolae Street, 077190 Bucharest, Romania;
| | - Dragoş Mirea
- Department of Applied Nuclear Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (M.S.); (D.M.); (R.F.A.)
| | - Radu Florin Andrei
- Department of Applied Nuclear Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (M.S.); (D.M.); (R.F.A.)
- Department of Physics, Applied Science Faculty, “Politehnica” University of Bucharest (UPB), 303 Splaiul Independentei, 060042 Bucharest, Romania
| | - Constantin Cenușă
- Radioisotopes and Radiation Metrology Department, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania;
| | - Laurenţiu Mogoantă
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova (UMFCV), 2 Petru Rareș Street, 200349 Craiova, Romania;
| | - George Dan Mogoșanu
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova (UMFCV), 2 Petru Rareș Street, 200349 Craiova, Romania;
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, “Politehnica” University of Bucharest (UPB), 1-7 Polizu Street, 011061 Bucharest, Romania;
| | - Mihai Radu
- Department of Life and Environmental Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (R.C.P.); (C.M.); (M.T.); (M.R.)
| | - Marlon R. Veldwijk
- Department of Radiation Oncology, Universitätsmedizin Mannheim (UMM), Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany
- Correspondence: (M.R.V.); (D.I.S.); Tel.: +49-621-383-3750 (M.R.V.); +40-214-046-134 (D.I.S.)
| | - Diana Iulia Savu
- Department of Life and Environmental Physics, “Horia Hulubei” National Insitute of Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, 077125 Magurele, Romania; (R.C.P.); (C.M.); (M.T.); (M.R.)
- Correspondence: (M.R.V.); (D.I.S.); Tel.: +49-621-383-3750 (M.R.V.); +40-214-046-134 (D.I.S.)
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60
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Popescu RC, Savu D, Dorobantu I, Vasile BS, Hosser H, Boldeiu A, Temelie M, Straticiuc M, Iancu DA, Andronescu E, Wenz F, Giordano FA, Herskind C, Veldwijk MR. Efficient uptake and retention of iron oxide-based nanoparticles in HeLa cells leads to an effective intracellular delivery of doxorubicin. Sci Rep 2020; 10:10530. [PMID: 32601333 PMCID: PMC7324358 DOI: 10.1038/s41598-020-67207-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/01/2020] [Indexed: 12/12/2022] Open
Abstract
The purpose of this study was to construct and characterize iron oxide nanoparticles (IONPCO) for intracellular delivery of the anthracycline doxorubicin (DOX; IONPDOX) in order to induce tumor cell inactivation. More than 80% of the loaded drug was released from IONPDOX within 24 h (100% at 70 h). Efficient internalization of IONPDOX and IONPCO in HeLa cells occurred through pino- and endocytosis, with both IONP accumulating in a perinuclear pattern. IONPCO were biocompatible with maximum 27.9% ± 6.1% reduction in proliferation 96 h after treatment with up to 200 µg/mL IONPCO. Treatment with IONPDOX resulted in a concentration- and time-dependent decrease in cell proliferation (IC50 = 27.5 ± 12.0 μg/mL after 96 h) and a reduced clonogenic survival (surviving fraction, SF = 0.56 ± 0.14; versus IONPCO (SF = 1.07 ± 0.38)). Both IONP constructs were efficiently internalized and retained in the cells, and IONPDOX efficiently delivered DOX resulting in increased cell death vs IONPCO.
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Affiliation(s)
- R C Popescu
- "Horia Hulubei" National Institute for Research and Development in Physics and Nuclear Engineering, Department of Life and Environmental Physics, Reactorului 30, 077125, Magurele, Romania.,Politehnica University of Bucharest, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu 1-7, 011061, Bucharest, Romania.,Heidelberg University, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Department of Radiation Oncology, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - D Savu
- "Horia Hulubei" National Institute for Research and Development in Physics and Nuclear Engineering, Department of Life and Environmental Physics, Reactorului 30, 077125, Magurele, Romania.
| | - I Dorobantu
- "Horia Hulubei" National Institute for Research and Development in Physics and Nuclear Engineering, Department of Life and Environmental Physics, Reactorului 30, 077125, Magurele, Romania
| | - B S Vasile
- Politehnica University of Bucharest, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu 1-7, 011061, Bucharest, Romania
| | - H Hosser
- Heidelberg University, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Center for Biomedicine and Medical Technology, Department of Anatomy and Developmental Biology, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - A Boldeiu
- National Institute for Research and Development in Microtechnologies, Laboratory of Nanobiotechnology, Erou Iancu Nicolae 12A, 077190, Bucharest, Romania
| | - M Temelie
- "Horia Hulubei" National Institute for Research and Development in Physics and Nuclear Engineering, Department of Life and Environmental Physics, Reactorului 30, 077125, Magurele, Romania
| | - M Straticiuc
- "Horia Hulubei" National Institute for Research and Development in Physics and Nuclear Engineering, Department of Applied Nuclear Physics, Reactorului 30, 077125, Magurele, Romania
| | - D A Iancu
- "Horia Hulubei" National Institute for Research and Development in Physics and Nuclear Engineering, Department of Applied Nuclear Physics, Reactorului 30, 077125, Magurele, Romania
| | - E Andronescu
- Politehnica University of Bucharest, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu 1-7, 011061, Bucharest, Romania
| | - F Wenz
- University Medical Center Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany
| | - F A Giordano
- Heidelberg University, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Department of Radiation Oncology, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - C Herskind
- Heidelberg University, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Department of Radiation Oncology, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - M R Veldwijk
- Heidelberg University, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Department of Radiation Oncology, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
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Croitoru AM, Ficai D, Ficai A, Mihailescu N, Andronescu E, Turculet CF. Nanostructured Fibers Containing Natural or Synthetic Bioactive Compounds in Wound Dressing Applications. Materials (Basel) 2020; 13:E2407. [PMID: 32456196 PMCID: PMC7287851 DOI: 10.3390/ma13102407] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/11/2020] [Accepted: 05/21/2020] [Indexed: 12/15/2022]
Abstract
The interest in wound healing characteristics of bioactive constituents and therapeutic agents, especially natural compounds, is increasing because of their therapeutic properties, cost-effectiveness, and few adverse effects. Lately, nanocarriers as a drug delivery system have been actively investigated and applied in medical and therapeutic applications. In recent decades, researchers have investigated the incorporation of natural or synthetic substances into novel bioactive electrospun nanofibrous architectures produced by the electrospinning method for skin substitutes. Therefore, the development of nanotechnology in the area of dressings that could provide higher performance and a synergistic effect for wound healing is needed. Natural compounds with antimicrobial, antibacterial, and anti-inflammatory activity in combination with nanostructured fibers represent a future approach due to the increased wound healing process and regeneration of the lost tissue. This paper presents different approaches in producing electrospun nanofibers, highlighting the electrospinning process used in fabricating innovative wound dressings that are able to release natural and/or synthetic substances in a controlled way, thus enhancing the healing process.
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Affiliation(s)
- Alexa-Maria Croitoru
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
| | - Denisa Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
| | - Anton Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
- Academy of Romanian Scientists, Spl. Independentei 54, 050094 Bucharest, Romania
| | - Natalia Mihailescu
- Laser Department, National Institute for Laser, Plasma & Radiation Physics, Atomistilor St. 409, 077125 Magurele, Romania
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
- Academy of Romanian Scientists, Spl. Independentei 54, 050094 Bucharest, Romania
| | - Claudiu Florin Turculet
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Eroii Sanitari St. 8, 050474 Bucharest, Romania;
- Emergency Hospital Floreasca Bucharest, Calea Floreasca St. 8, 014461 Bucharest, Romania
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Beshchasna N, Saqib M, Kraskiewicz H, Wasyluk Ł, Kuzmin O, Duta OC, Ficai D, Ghizdavet Z, Marin A, Ficai A, Sun Z, Pichugin VF, Opitz J, Andronescu E. Recent Advances in Manufacturing Innovative Stents. Pharmaceutics 2020; 12:E349. [PMID: 32294908 PMCID: PMC7238261 DOI: 10.3390/pharmaceutics12040349] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases are the most distributed cause of death worldwide. Stenting of arteries as a percutaneous transluminal angioplasty procedure became a promising minimally invasive therapy based on re-opening narrowed arteries by stent insertion. In order to improve and optimize this method, many research groups are focusing on designing new or improving existent stents. Since the beginning of the stent development in 1986, starting with bare-metal stents (BMS), these devices have been continuously enhanced by applying new materials, developing stent coatings based on inorganic and organic compounds including drugs, nanoparticles or biological components such as genes and cells, as well as adapting stent designs with different fabrication technologies. Drug eluting stents (DES) have been developed to overcome the main shortcomings of BMS or coated stents. Coatings are mainly applied to control biocompatibility, degradation rate, protein adsorption, and allow adequate endothelialization in order to ensure better clinical outcome of BMS, reducing restenosis and thrombosis. As coating materials (i) organic polymers: polyurethanes, poly(ε-caprolactone), styrene-b-isobutylene-b-styrene, polyhydroxybutyrates, poly(lactide-co-glycolide), and phosphoryl choline; (ii) biological components: vascular endothelial growth factor (VEGF) and anti-CD34 antibody and (iii) inorganic coatings: noble metals, wide class of oxides, nitrides, silicide and carbide, hydroxyapatite, diamond-like carbon, and others are used. DES were developed to reduce the tissue hyperplasia and in-stent restenosis utilizing antiproliferative substances like paclitaxel, limus (siro-, zotaro-, evero-, bio-, amphi-, tacro-limus), ABT-578, tyrphostin AGL-2043, genes, etc. The innovative solutions aim at overcoming the main limitations of the stent technology, such as in-stent restenosis and stent thrombosis, while maintaining the prime requirements on biocompatibility, biodegradability, and mechanical behavior. This paper provides an overview of the existing stent types, their functionality, materials, and manufacturing conditions demonstrating the still huge potential for the development of promising stent solutions.
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Affiliation(s)
- Natalia Beshchasna
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Maria-Reiche-Str. 2, 01109 Dresden, Germany; (M.S.); (J.O.)
| | - Muhammad Saqib
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Maria-Reiche-Str. 2, 01109 Dresden, Germany; (M.S.); (J.O.)
| | | | - Łukasz Wasyluk
- Balton Sp. z o.o. Modlińska 294, 03-152 Warsaw, Poland; (H.K.); (Ł.W.)
| | - Oleg Kuzmin
- VIP Technologies, Prospect Academicheskiy 8/2, 634055 Tomsk, Russia;
| | - Oana Cristina Duta
- Department of Science and Engineering of Oxide Materials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; (O.C.D.); (D.F.); (Z.G.); (E.A.)
| | - Denisa Ficai
- Department of Science and Engineering of Oxide Materials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; (O.C.D.); (D.F.); (Z.G.); (E.A.)
| | - Zeno Ghizdavet
- Department of Science and Engineering of Oxide Materials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; (O.C.D.); (D.F.); (Z.G.); (E.A.)
| | - Alexandru Marin
- Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, Faculty of Power Engineering, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania;
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; (O.C.D.); (D.F.); (Z.G.); (E.A.)
- Academy of Romanian Scientists, Spl. Independentei 54, 050094 Bucharest, Romania
| | - Zhilei Sun
- Research School of High-Energy Physics, Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russia;
| | - Vladimir F. Pichugin
- Research School of High-Energy Physics, Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russia;
| | - Joerg Opitz
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Maria-Reiche-Str. 2, 01109 Dresden, Germany; (M.S.); (J.O.)
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; (O.C.D.); (D.F.); (Z.G.); (E.A.)
- Academy of Romanian Scientists, Spl. Independentei 54, 050094 Bucharest, Romania
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Duta OC, Ţîţu AM, Marin A, Ficai A, Ficai D, Andronescu E. Surface Modification of Poly(Vinylchloride) for Manufacturing Advanced Catheters. Curr Med Chem 2020; 27:1616-1633. [DOI: 10.2174/0929867327666200227152150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 06/11/2018] [Accepted: 10/08/2018] [Indexed: 11/22/2022]
Abstract
Polymeric materials, due to their excellent physicochemical properties and versatility found
applicability in multiples areas, including biomaterials used in tissue regeneration, prosthetics (hip,
artificial valves), medical devices, controlled drug delivery systems, etc. Medical devices and their
applications are very important in modern medicine and the need to develop new materials with improved
properties or to improve the existent materials is increasing every day. Numerous reasearches
are activated in this domain in order to obtain materials/surfaces that does not have drawbacks such as
structural failure, calcifications, infections or thrombosis. One of the most used material is
poly(vinylchloride) (PVC) due to its unique properties, availability and low cost. The most common
method used for obtaining tubular devices that meet the requirements of medical use is the surface
modification of polymers without changing their physical and mechanical properties, in bulk. PVC is a
hydrophobic polymer and therefore many research studies were conducted in order to increase the hydrophilicity
of the surface by chemical modification in order to improve biocompatibility, to enhance
wettability, reduce friction or to make lubricious or antimicrobial coatings. Surface modification of
PVC can be achieved by several strategies, in only one step or, in some cases, in two or more steps by
applying several techniques consecutively to obtain the desired modification / performances. The most
common processes used for modifying the surface of PVC devices are: plasma treatment, corona discharge,
chemical grafting, electric discharge, vapour deposition of metals, flame treatment, direct
chemical modification (oxidation, hydrolysis, etc.) or even some physical modification of the roughness
of the surface.
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Affiliation(s)
- Oana Cristina Duta
- University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Aurel Mihail Ţîţu
- “Lucian Blaga” University of Sibiu, Faculty of Engineering, Industrial Engineering and Management Departament, 4 Emil Cioran Street, Sibiu, Romania
| | - Alexandru Marin
- University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Denisa Ficai
- University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Ecaterina Andronescu
- University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
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Ene VL, Neacsu IA, Oprea O, Surdu VA, Trusca RD, Ficai A, Andronescu E. Single Step Synthesis of Glutamic/tartaric Acid-stabilised Fe3O4 Nanoparticles for Targeted Delivery Systems. Rev Chim 2020. [DOI: 10.37358/rc.20.2.7920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This paper aims to improve medical strategies regarding cancer treatment, by developing new targeted cancer therapy nanostructured systems, based on magnetite and natural catabolism products as coating agents (glutamic acid, tartaric acid), with induced cellular internalization. In order to create hydrophilic, biocompatible systems, suitable for targeted cancer therapy, and minimize the negative side effects of current approaches, a one-pot synthesis by co-precipitation technique, starting from Fe2+ and Fe3+ inorganic precursors and multifunctional organic compounds, carefully controlling the reaction parameters (concentration of precursors, pH, temperature etc.) was performed. The obtained Fe3O4 stabilised nanoparticles were subjected to morphological and structural characterization. The formation of inorganic-organic hybrid systems was evaluated using FTIR spectroscopy and complex thermal analysis (TG / DSC) for determining the content of the organic component, while X-ray Diffractometry and Scanning and Transmission Electron Microscopy were used to characterize the crystallinity and particle dimensions and distribution. The magnetic properties at room temperature were also evaluated, recording the magnetic susceptibility relative to the applied magnetic field.
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Croitoru A, Ficai D, Craciun L, Ficai A, Andronescu E. Evaluation and Exploitation of Bioactive Compounds of Walnut, Juglans regia. Curr Pharm Des 2020; 25:119-131. [PMID: 30931854 DOI: 10.2174/1381612825666190329150825] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 03/22/2019] [Indexed: 12/12/2022]
Abstract
In the last few years, great importance has been given to natural materials (such as walnuts, peanuts, chestnuts) due to their medicinal and pharmaceutical uses induced by the presence of natural agents, including polyphenols. Juglans regia is a traditional plant that has been used since ancient times in traditional medicine for the treatment of various diseases like microbial infections, stomach ache, thyroid dysfunctions, cancer, heart diseases and sinusitis. Recently, scientific attention for the phytochemical profile of walnut by-products is increasing due to their valuable active constituents. Natural polyphenols are important compounds present in walnut with valuable properties that have been studied for the treatment of inflammation, cancer or anti-ageing effect. The use of nanocarriers as a drug delivery system is now a promising strategy to get more stable products and is easier to apply in a medical, therapeutic and pharmaceutical environment. The aim of this work was to review the latest information provided by scientific investigators regarding the nutritional value, bioactive compounds, antioxidant and antitumor activity of walnut by-product extracts. Moreover, this review provides comprehensive information on the nanoencapsulation of bioactive constituents for application in clinical medicine, particularly in cancer research.
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Affiliation(s)
- Alexa Croitoru
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh Polizu St 1-7, 011061 Bucharest, Romania
| | - Denisa Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh Polizu St 1-7, 011061 Bucharest, Romania
| | - Luminiţa Craciun
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh Polizu St 1-7, 011061 Bucharest, Romania
| | - Anton Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh Polizu St 1-7, 011061 Bucharest, Romania.,Academy of Romanian Scientists, Spl. Independenţei 54, Bucharest, Romania
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh Polizu St 1-7, 011061 Bucharest, Romania.,Academy of Romanian Scientists, Spl. Independenţei 54, Bucharest, Romania
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66
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Fundueanu G, Constantin M, Bucatariu S, Nicolescu A, Ascenzi P, Moise LG, Tudor L, Trusca VG, Gafencu AV, Ficai D, Ficai A, Andronescu E. Simple and dual cross-linked chitosan millicapsules as a particulate support for cell culture. Int J Biol Macromol 2020; 143:200-212. [DOI: 10.1016/j.ijbiomac.2019.12.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/29/2019] [Accepted: 12/05/2019] [Indexed: 02/08/2023]
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67
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Popescu RC, Andronescu E, Vasile BS. Recent Advances in Magnetite Nanoparticle Functionalization for Nanomedicine. Nanomaterials (Basel) 2019; 9:E1791. [PMID: 31888236 PMCID: PMC6956201 DOI: 10.3390/nano9121791] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/22/2019] [Accepted: 12/11/2019] [Indexed: 02/07/2023]
Abstract
Functionalization of nanomaterials can enhance and modulate their properties and behaviour, enabling characteristics suitable for medical applications. Magnetite (Fe3O4) nanoparticles are one of the most popular types of nanomaterials used in this field, and many technologies being already translated in clinical practice. This article makes a summary of the surface modification and functionalization approaches presented lately in the scientific literature for improving or modulating magnetite nanoparticles for their applications in nanomedicine.
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Affiliation(s)
- Roxana Cristina Popescu
- National Research Center for Micro and Nanomaterials, Department of Science and Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 060042 Bucharest, Romania; (R.C.P.); (E.A.)
- Department of Life and Environmental Physics, “Horia Hulubei” National Institute for Physics and Nuclear Engineering, 077125 Magurele, Romania
| | - Ecaterina Andronescu
- National Research Center for Micro and Nanomaterials, Department of Science and Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 060042 Bucharest, Romania; (R.C.P.); (E.A.)
| | - Bogdan Stefan Vasile
- National Research Center for Micro and Nanomaterials, Department of Science and Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 060042 Bucharest, Romania; (R.C.P.); (E.A.)
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Ardelean IL, Ficai D, Sonmez M, Oprea O, Nechifor G, Andronescu E, Ficai A, Titu MA. Hybrid Magnetic Nanostructures For Cancer Diagnosis And Therapy. Anticancer Agents Med Chem 2019; 19:6-16. [PMID: 30411694 DOI: 10.2174/1871520618666181109112655] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 03/17/2018] [Accepted: 10/23/2018] [Indexed: 12/24/2022]
Abstract
Cancer is the second disease in the world from the point of view of mortality. The conventional routes of treatment were found to be not sufficient and thus alternative ways are imposed. The use of hybrid, magnetic nanostructures is a promising way for simultaneous targeted diagnosis and treatment of various types of cancer. For this reason, the development of core@shell structures was found to be an efficient way to develop stable, biocompatible, non-toxic carriers with shell-dependent internalization capacity in cancer cells. So, the multicomponent approach can be the most suitable way to assure the multifunctionality of these nanostructures to achieve the desired/necessary properties. The in vivo stability is mostly assured by the coating of the magnetic core with various polymers (including polyethylene glycol, silica etc.), while the targeting capacity is mostly assured by the decoration of these nanostructures with folic acid. Unfortunately, there are also some limitations related to the multilayered approach. For instance, the increasing of the thickness of layers leads to a decrease the magnetic properties, (hyperthermia and guiding ability in the magnetic field, for instance), the outer shell should contain the targeting molecules (as well as the agents helping the internalization into the cancer cells), etc.
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Affiliation(s)
- Ioana L Ardelean
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Denisa Ficai
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Maria Sonmez
- Leather and Footwear Research Institute, Department of Rubber, 93 Ion Minulescu street, 031215, Bucharest, Romania
| | - Ovidiu Oprea
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Gheorghe Nechifor
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Ecaterina Andronescu
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Anton Ficai
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Mihail A Titu
- "Lucian Blaga" University of Sibiu, Faculty of Engineering, Industrial Engineering and Management Departament, Sibiu, Romania
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69
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Lungu II, Grumezescu AM, Volceanov A, Andronescu E. Nanobiomaterials Used in Cancer Therapy: An Up-To-Date Overview. Molecules 2019; 24:E3547. [PMID: 31574993 PMCID: PMC6804091 DOI: 10.3390/molecules24193547] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 01/09/2023] Open
Abstract
The disadvantages that come with traditional cancer treatments, such as chemotherapy and radiotherapy, generated a research shift toward nanotechnology. However, even with the important advancements regarding cancer therapy, there are still serious stepping stones that need to be addressed. The use of both nanotechnology and nanomedicine has generated significant improvements in nano-sized materials development and their use as therapeutic, diagnosis, and imaging agents. The biological barriers that come from the healthy body, as well from the tumorous sites, are important parameters that need to be taken into consideration when designing drug delivery systems. There are several aspects of extreme importance such as the tumor microenvironment and vasculature, the reticuloendothelial system, the blood-brain barrier, the blood-tumor barrier, and the renal system. In order to achieve an effective system for cancer therapy, several characteristics of the nanoparticles have been outlined. Moreover, this review has also focused on the different types of nanoparticles that have been studied over the years as potential candidates for cancer therapy.
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Affiliation(s)
- Iulia Ioana Lungu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania.
- National Institute of Laser, Plasma and Radiation Physics (NILPRP), Bucharest-Magurele, 077125 Magurele, Romania.
| | - Alexandru Mihai Grumezescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania.
| | - Adrian Volceanov
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania.
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania.
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70
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Tanasa E, Zaharia C, Radu IC, Surdu VA, Vasile BS, Damian CM, Andronescu E. Novel Nanocomposites Based on Functionalized Magnetic Nanoparticles and Polyacrylamide: Preparation and Complex Characterization. Nanomaterials (Basel) 2019; 9:nano9101384. [PMID: 31569674 PMCID: PMC6835864 DOI: 10.3390/nano9101384] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 01/14/2023]
Abstract
This paper reports the synthesis and complex characterization of nanocomposite hydrogels based on polyacrylamide and functionalized magnetite nanoparticles. Magnetic nanoparticles were functionalized with double bonds by 3-trimethoxysilyl propyl methacrylate. Nanocomposite hydrogels were prepared by radical polymerization of acrylamide monomer and double bond modified magnetite nanoparticles. XPS spectra for magnetite and modified magnetite were recorded to evaluate the covalent bonding of silane modifying agent. Swelling measurements in saline solution were performed to evaluate the behavior of these hydrogels having various compositions. Mechanical properties were evaluated by dynamic rheological analysis for elastic modulus and vibrating sample magnetometry was used to investigate the magnetic properties. Morphology, geometrical evaluation (size and shape) of nanostructural characteristics and the crystalline structure of the samples were investigated by SEM, HR-TEM and selected area electron diffraction (SAED). The nanocomposite hydrogels will be further tested for the soft tissue engineering field as repairing scaffolds, due to their mechanical and magnetization behavior that can stimulate tissue regeneration.
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Affiliation(s)
- Eugenia Tanasa
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, 060042 Bucharest, Romania.
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania.
| | - Catalin Zaharia
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 060042 Bucharest, Romania.
| | - Ionut-Cristian Radu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 060042 Bucharest, Romania.
| | - Vasile-Adrian Surdu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, 060042 Bucharest, Romania.
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania.
| | - Bogdan Stefan Vasile
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, 060042 Bucharest, Romania.
- National Research Center for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania.
| | - Celina-Maria Damian
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 060042 Bucharest, Romania.
| | - Ecaterina Andronescu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, 060042 Bucharest, Romania.
- National Research Center for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania.
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Popescu R, Savu D, Dorobantu I, Vasile B, Hosser H, Schneider F, Boldeiu A, Andronescu E, Wenz F, Giordano F, Herskind C, Veldwijk M. Radiosensitization of Tumor Cells by Intracellular Delivery of Doxorubicin Using Novel Iron Oxide-based Nanoconstructs. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Andronescu E, Predoi D, Neacsu IA, Paduraru AV, Musuc AM, Trusca R, Oprea O, Tanasa E, Vasile OR, Nicoara AI, Surdu AV, Iordache F, Birca AC, Iconaru SL, Vasile BS. Photoluminescent Hydroxylapatite: Eu 3+ Doping Effect on Biological Behaviour. Nanomaterials (Basel) 2019; 9:nano9091187. [PMID: 31443424 PMCID: PMC6780766 DOI: 10.3390/nano9091187] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/10/2019] [Accepted: 08/18/2019] [Indexed: 12/15/2022]
Abstract
Luminescent europium-doped hydroxylapatite (EuXHAp) nanomaterials were successfully obtained by co-precipitation method at low temperature. The morphological, structural and optical properties were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier Transform Infrared (FT-IR), UV-Vis and photoluminescence (PL) spectroscopy. The cytotoxicity and biocompatibility of EuXHAp were also evaluated using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide)) assay, oxidative stress assessment and fluorescent microscopy. The results reveal that the Eu3+ has successfully doped the hexagonal lattice of hydroxylapatite. By enhancing the optical features, these EuXHAp materials demonstrated superior efficiency to become fluorescent labelling materials for bioimaging applications.
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Affiliation(s)
- Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Research Center for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Daniela Predoi
- Multifunctional Materials and Structures Laboratory, National Institute of Materials Physics, 077125 Magurele, Romania
| | - Ionela Andreea Neacsu
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Andrei Viorel Paduraru
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Adina Magdalena Musuc
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Ilie Murgulescu Institute of Physical Chemistry, 060021 Bucharest, Romania
| | - Roxana Trusca
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Research Center for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Ovidiu Oprea
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Eugenia Tanasa
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Research Center for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Otilia Ruxandra Vasile
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Research Center for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Adrian Ionut Nicoara
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Adrian Vasile Surdu
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Florin Iordache
- Faculty of Veterinary Medicine, Department of Biochemistry, University of Agronomic Science and Veterinary Medicine, 011464 Bucharest, Romania
| | - Alexandra Catalina Birca
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Simona Liliana Iconaru
- Multifunctional Materials and Structures Laboratory, National Institute of Materials Physics, 077125 Magurele, Romania
| | - Bogdan Stefan Vasile
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania.
- National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania.
- National Research Center for Food Safety, University Politehnica of Bucharest, 060042 Bucharest, Romania.
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Grumezescu AM, Stoica AE, Dima-Bălcescu MȘ, Chircov C, Gharbia S, Baltă C, Roșu M, Herman H, Holban AM, Ficai A, Vasile BS, Andronescu E, Chifiriuc MC, Hermenean A. Electrospun Polyethylene Terephthalate Nanofibers Loaded with Silver Nanoparticles: Novel Approach in Anti-Infective Therapy. J Clin Med 2019; 8:E1039. [PMID: 31315266 PMCID: PMC6679131 DOI: 10.3390/jcm8071039] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/04/2019] [Accepted: 07/07/2019] [Indexed: 12/29/2022] Open
Abstract
Polyethylene terephthalate (PET) is a major pollutant polymer, due to its wide use in food packaging and fiber production industries worldwide. Currently, there is great interest for recycling the huge amount of PET-based materials, derived especially from the food and textile industries. In this study, we applied the electrospinning technique to obtain nanostructured fibrillary membranes based on PET materials. Subsequently, the recycled PET networks were decorated with silver nanoparticles through the chemical reduction method for antimicrobial applications. After the characterization of the materials in terms of crystallinity, chemical bonding, and morphology, the effect against Gram-positive and Gram-negative bacteria, as well as fungal strains, was investigated. Furthermore, in vitro and in vivo biocompatibility tests were performed in order to open up potential biomedical applications, such as wound dressings or implant coatings. Silver-decorated fibers showed lower cytotoxicity and inflammatory effects and increased antibiofilm activity, thus highlighting the potential of these systems for antimicrobial purposes.
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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, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 050094 Bucharest, Romania
- ICUB, Research Institute of Bucharest University, University of Bucharest, 030018 Bucharest, Romania
| | - Alexandra Elena Stoica
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | | | - Cristina Chircov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Sami Gharbia
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania
| | - Cornel Baltă
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania
| | - Marcel Roșu
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania
| | - Hildegard Herman
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, 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, 060042 Bucharest, Romania
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050107 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 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, 060042 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, 060042 Bucharest, Romania.
| | - Mariana Carmen Chifiriuc
- ICUB, Research Institute of Bucharest University, University of Bucharest, 030018 Bucharest, Romania
| | - Anca Hermenean
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Faculty of Medicine, Vasile Goldis Western University of Arad, 310045 Arad, Romania
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Croitoru A, Oprea O, Nicoara A, Trusca R, Radu M, Neacsu I, Ficai D, Ficai A, Andronescu E. Multifunctional Platforms Based on Graphene Oxide and Natural Products. Medicina (Kaunas) 2019; 55:E230. [PMID: 31151305 PMCID: PMC6631192 DOI: 10.3390/medicina55060230] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/25/2019] [Accepted: 05/27/2019] [Indexed: 01/10/2023]
Abstract
Background and objectives: In the last few years, graphene oxide has attracted much attention in biomedical applications due to its unique physico-chemical properties and can be used as a carrier for both hydrophilic and/or hydrophobic biomolecules. The purpose of this paper was to synthesize graphene oxide and to obtain multifunctional platforms based on graphene oxide as a nanocarrier loaded with few biologically active substances with anticancer, antimicrobial or anti-inflammatory properties such as gallic acid, caffeic acid, limonene and nutmeg and cembra pine essential oils. Materials and Methods: Graphene oxide was obtained according to the method developed by Hummers and further loaded with biologically active agents. The obtained platforms were characterized using FTIR, HPLC, TGA, SEM, TEM and Raman spectroscopy. Results: Gallic acid released 80% within 10 days but all the other biologically active agents did not release because their affinity for the graphene oxide support was higher than that of the phosphate buffer solution. SEM characterization showed the formation of nanosheets and a slight increase in the degree of agglomeration of the particles. The ratio I2D/IG for all samples was between 0.18 for GO-cembra pine and 0.27 for GO-limonene, indicating that the GO materials were in the form of multilayers. The individual GO sheets were found to have less than 20 µm, the thickness of GO was estimated to be ~4 nm and an interlayer spacing of about 2.12 Å. Raman spectroscopy indicated that the bioactive substances were adsorbed on the surface and no degradation occurred during loading. Conclusions: These findings encourage this research to further explore, both in vitro and in vivo, the biological activities of bioactive agents for their use in medicine.
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Affiliation(s)
- Alexa Croitoru
- Academy of Romanian Scientists, Spl. Independenței 54, 50085 Bucharest, Romania.
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Ovidiu Oprea
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Adrian Nicoara
- Academy of Romanian Scientists, Spl. Independenței 54, 50085 Bucharest, Romania.
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Roxana Trusca
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Mihai Radu
- Academy of Romanian Scientists, Spl. Independenței 54, 50085 Bucharest, Romania.
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Ionela Neacsu
- Academy of Romanian Scientists, Spl. Independenței 54, 50085 Bucharest, Romania.
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Denisa Ficai
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Anton Ficai
- Academy of Romanian Scientists, Spl. Independenței 54, 50085 Bucharest, Romania.
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
| | - Ecaterina Andronescu
- Academy of Romanian Scientists, Spl. Independenței 54, 50085 Bucharest, Romania.
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Gh. Polizu St 1-7, 011061 Bucharest, Romania.
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Neacsu IA, Arsenie LV, Trusca R, Ardelean IL, Mihailescu N, Mihailescu IN, Ristoscu C, Bleotu C, Ficai A, Andronescu E. Biomimetic Collagen/Zn 2+-Substituted Calcium Phosphate Composite Coatings on Titanium Substrates as Prospective Bioactive Layer for Implants: A Comparative Study Spin Coating vs. MAPLE. Nanomaterials (Basel) 2019; 9:nano9050692. [PMID: 31058851 PMCID: PMC6566990 DOI: 10.3390/nano9050692] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 04/22/2019] [Accepted: 04/26/2019] [Indexed: 01/20/2023]
Abstract
Synthesis of biomimetic materials for implants and prostheses is a hot topic in nanobiotechnology strategies. Today the major approach of orthopaedic implants in hard tissue engineering is represented by titanium implants. A comparative study of hybrid thin coatings deposition was performed by spin coating and matrix-assisted pulsed laser evaporation (MAPLE) onto titanium substrates. The Collagen-calcium phosphate (Coll-CaPs) combination was selected as the best option to mimic natural bone tissue. To accelerate the mineralization process, Zn2+ ions were inserted by substitution in CaPs. A superior thin film homogeneity was assessed by MAPLE, as shown by scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) microscopy. A decrease of P-O and amide absorbance bands was observed as a consequence of different Zn2+ amounts. A variety of structural modifications of the apatite layer are then generated, which influenced the confinement process towards the collagen template. The in-vitro Simulated Body Fluid (SBF) assay demonstrated the ability of Coll/Zn2+-CaPs coatings to stimulate the mineralization process as a result of synergic effects in the collagen-Zn2+ substituted apatite. For both deposition methods, the formation of droplets associated to the growth of CaPs particulates inside the collagen matrix was visualized. This supports the prospective behavior of MAPLE biomimetic coatings to induce mineralization, as an essential step of fast implant integration with vivid tissues.
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Affiliation(s)
- Ionela Andreea Neacsu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No.1, 011061 Bucharest, Romania.
| | - Laura Vasilica Arsenie
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No.1, 011061 Bucharest, Romania.
| | - Roxana Trusca
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No.1, 011061 Bucharest, Romania.
| | - Ioana Lavinia Ardelean
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No.1, 011061 Bucharest, Romania.
| | - Natalia Mihailescu
- National Institute for Laser, Plasma and Radiation Physics, Atomiştilor Street No. 409, 077125 Măgurele, Romania.
| | - Ion Nicolae Mihailescu
- National Institute for Laser, Plasma and Radiation Physics, Atomiştilor Street No. 409, 077125 Măgurele, Romania.
| | - Carmen Ristoscu
- National Institute for Laser, Plasma and Radiation Physics, Atomiştilor Street No. 409, 077125 Măgurele, Romania.
| | - Coralia Bleotu
- Stefan S. Nicolau' Institute of Virology, Romanian Academy, 011061 Bucharest, Romania.
| | - Anton Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No.1, 011061 Bucharest, Romania.
- Academy of Romanian Scientists, Splaiul Independentei Street No. 54, 011061 Bucharest, Romania.
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Polizu Street No.1, 011061 Bucharest, Romania.
- Academy of Romanian Scientists, Splaiul Independentei Street No. 54, 011061 Bucharest, Romania.
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76
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Neacsu IA, Stoica AE, Vasile BS, Andronescu E. Luminescent Hydroxyapatite Doped with Rare Earth Elements for Biomedical Applications. Nanomaterials (Basel) 2019; 9:E239. [PMID: 30744215 PMCID: PMC6409594 DOI: 10.3390/nano9020239] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 02/07/2023]
Abstract
One new, promising approach in the medical field is represented by hydroxyapatite doped with luminescent materials for biomedical luminescence imaging. The use of hydroxyapatite-based luminescent materials is an interesting area of research because of the attractive characteristics of such materials, which include biodegradability, bioactivity, biocompatibility, osteoconductivity, non-toxicity, and their non-inflammatory nature, as well their accessibility for surface adaptation. It is well known that hydroxyapatite, the predominant inorganic component of bones, serves a substantial role in tissue engineering, drug and gene delivery, and many other biomedical areas. Hydroxyapatite, to the detriment of other host matrices, has attracted substantial attention for its ability to bind to luminescent materials with high efficiency. Its capacity to integrate a large assortment of substitutions for Ca2+, PO₄3-, and/or OH- ions is attributed to the versatility of its apatite structure. This paper summarizes the most recently developed fluorescent materials based on hydroxyapatite, which use rare earth elements (REEs) as dopants, such as terbium (Tb3+), erbium (Er3+), europium (Eu3+), lanthanum (La3+), or dysprosium (Dy3+), that have been developed in the biomedical field.
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Affiliation(s)
- Ionela Andreea Neacsu
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1-7 Polizu Street,Bucharest, 011061, Romania.
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Beshchasna N, Ho AYK, Saqib M, Kraśkiewicz H, Wasyluk Ł, Kuzmin O, Duta OC, Ficai D, Trusca RD, Ficai A, Pichugin VF, Opitz J, Andronescu E. Surface evaluation of titanium oxynitride coatings used for developing layered cardiovascular stents. Mater Sci Eng C Mater Biol Appl 2019; 99:405-416. [PMID: 30889715 DOI: 10.1016/j.msec.2019.01.131] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 07/27/2018] [Accepted: 01/29/2019] [Indexed: 02/07/2023]
Abstract
Stents are important medical devices used to increase the quality and life expectancy of patients with heart diseases and stroke, leading causes of death, worldwide. In order to minimize the risk of restenosis, different coating on bare metal stents (BMS) such as polymer coatings; titanium dioxide, titanium nitride or titanium oxynitride coatings; carbon coatings and others are used. The aim of this work was to develop novel stents coated with titanium oxynitride (TiOxNy) with optimal chemical, mechanical and biological properties having possibly good coverage rate of inner and outer stent surfaces. The improvement should be achieved by optimization and development of a magnetron sputtering deposition technology. The goal of the study is understanding of the existing potential for improvement of the deposition technology and the coating quality itself. For this study, different O2/N2 ratios, meaning 1/2, 1/5 and 1/10 (the ratios of reagent gasses are given for the values of mass flows into the chamber) has been selected. Stability in simulated body fluids, surface morphology and protein adsorption as well as preliminary cytotoxic behaviour of the samples on HUVEC cells has been analysed. SEM experiments have shown the potential in the improvement of coating-stent adhesion by all samples. TiOxNy 1:5 samples were found to have the lowest adsorption, the smoothest surface morphology and the smallest rate of salt deposition from simulated body fluids (SBFs). This kind of surface has been recommended for further optimization and application.
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Affiliation(s)
- Natalia Beshchasna
- Fraunhofer Institute for Ceramic Technologies and Systems, Maria-Reiche Street 2, 01109 Dresden, Germany
| | - Au Yeung Kwan Ho
- Fraunhofer Institute for Ceramic Technologies and Systems, Maria-Reiche Street 2, 01109 Dresden, Germany
| | - Muhammad Saqib
- Fraunhofer Institute for Ceramic Technologies and Systems, Maria-Reiche Street 2, 01109 Dresden, Germany
| | | | | | - Oleg Kuzmin
- VIP Technologies, Prospect Academicheskiy 8/2, 634055 Tomsk, Russian Federation
| | - Oana Cristina Duta
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Denisa Ficai
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Roxana Doina Trusca
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science, Spl. Independentei 313, 060042 Bucharest, Romania; Academy of Romanian Scientists, Spl Independentei 54, 050094 Bucharest, Romania.
| | - Vladimir F Pichugin
- Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russian Federation
| | - Jörg Opitz
- Fraunhofer Institute for Ceramic Technologies and Systems, Maria-Reiche Street 2, 01109 Dresden, Germany
| | - Ecaterina Andronescu
- University POLITEHNICA of Bucharest, Faculty of Applied Chemistry and Material Science, Spl. Independentei 313, 060042 Bucharest, Romania; Academy of Romanian Scientists, Spl Independentei 54, 050094 Bucharest, Romania
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Colie M, Mihaiescu DE, Istrati D, Surdu AV, Vasile B, Stanica N, Fudulu A, Andronescu E. Synthesis and Characterization of a Core-shell Material Using YBa2Cu3O7-d and Cobalt Ferrite Nanoparticles. Rev Chim 2019. [DOI: 10.37358/rc.18.12.6746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In this paper we describe the synthesis of a core-shell material using yttrium superconducting ceramic material (YBCO) and cobalt ferrite nanoparticles in order to obtain a nanostructured material with magnetic properties. The advantages of such material aim the selective deposition of nanofilms oriented in magnetic fields. To obtain this core-shell material, the solutions of the nitrates were first obtained by dissolving the salts in demineralised water. The suspension with cobalt ferrite nanoparticles was obtained by co-precipitation method. To obtain YBa2Cu3O7-�- coated magnetic nanoparticles by autocombustion reaction the solutions of nitrates and citric acid were used. The ratio of the metal ions: Y:Ba:Cu was 1:2:3, and between the oxidant and the reducing agent was used a citrate / nitrate mass ratio equal with 0.7. The final material was analyzed by X-ray diffraction (XRD), electronic scanning microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), high resolution transmission electron microscopy (HRTEM) and vibrating sample magnetometer (VSM).
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79
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Vasile OR, Andronescu E, Truşcă R, Vasile E, Holban AM, Chifiriuc MC, Iordache F, Maniu H, Bleotu C, Neacşu IA, Vasile BŞ. Structure-grain size-synthesis route of silver nanoparticles: a correlation with the cytotoxic effect. Rom J Morphol Embryol 2019; 60:617-628. [PMID: 31658336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although engineered silver (Ag) nanopowders offer great promise in various fields of biomedical, industrial and ecological applications, insufficient data is known about their cytotoxicity. The purpose of the present study was the synthesis and then the determination of cytotoxicity effect of Ag powders using the pyrosol method, at various temperatures of 600°C, 650°C and 700°C, respectively by sol-gel method and heat treatments at 500°C, 600°C, 700°C and 800°C. From the structural, compositional and morphological point of view, Ag samples were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) coupled with selected area electron diffraction (SAED) techniques. There is an influence of the synthesis route on Ag particles, which is shown as their cytotoxicity, different sizes of micro and nanosilver synthesized powders, which were evaluated in comparison depending on the work methods. Their cytotoxicity was evaluated based on their influence on cellular morphology and proliferation rate, cell cycle and apoptosis of undifferential stem cells, endothelial cells and tumoral cells, assessed through flow cytometry, cloning and MTT assay. The results showed that the cytotoxicity of the obtained Ag nanoparticles (NPs) depends on the synthesis route, the pyrosol synthesized NPs exhibiting a higher cytotoxicity as compared to those obtained by the sol-gel method.
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Affiliation(s)
- Otilia Ruxandra Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania; ,
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Dumitrescu E, Andronescu E, Mares AM. Optimization of Waste Inertization Systems Based on Chemically Bonded Phosphate Ceramics. Rev Chim 2018. [DOI: 10.37358/rc.18.11.6667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This paper presents the experimental results for optimization of the waste inertization systems based on Chemically Bonded Phosphate Ceramics (CBPCs). Through this process, the hazardous wastes containing heavy metals are transformed, by chemical reactions and binding in a solid matrix, into non-hazardous wastes. It was studied the obtaining mode of chemically bonded phosphate ceramics from magnesium oxide and potassium dihydrogen phosphate. Since the CBPCs system is a fast setting system it was studied the effect of retarders (boric acid and calcium lignosulphonate) used in concentrations of 1, 2 and 3% (based on the amount of magnesium oxide and potassium dihydrogen phosphate) above the setting process. It was determined the setting time and compressive strength of the obtained samples. The optimal variant has been established to obtain a suitable material in terms of both mechanical and compositional properties.
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81
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Moukbi Y, Oktar FN, Ozbek B, Ficai D, Ficai A, Andronescu E, Eroglu MS, Gunduz O. Biohydrogels for medical applications: A short review. ACTA ACUST UNITED AC 2018. [DOI: 10.25135/acg.oc.49.18.06.108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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82
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Burdușel AC, Gherasim O, Grumezescu AM, Mogoantă L, Ficai A, Andronescu E. Biomedical Applications of Silver Nanoparticles: An Up-to-Date Overview. Nanomaterials (Basel) 2018; 8:E681. [PMID: 30200373 PMCID: PMC6163202 DOI: 10.3390/nano8090681] [Citation(s) in RCA: 562] [Impact Index Per Article: 93.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 12/18/2022]
Abstract
During the past few years, silver nanoparticles (AgNPs) became one of the most investigated and explored nanotechnology-derived nanostructures, given the fact that nanosilver-based materials proved to have interesting, challenging, and promising characteristics suitable for various biomedical applications. Among modern biomedical potential of AgNPs, tremendous interest is oriented toward the therapeutically enhanced personalized healthcare practice. AgNPs proved to have genuine features and impressive potential for the development of novel antimicrobial agents, drug-delivery formulations, detection and diagnosis platforms, biomaterial and medical device coatings, tissue restoration and regeneration materials, complex healthcare condition strategies, and performance-enhanced therapeutic alternatives. Given the impressive biomedical-related potential applications of AgNPs, impressive efforts were undertaken on understanding the intricate mechanisms of their biological interactions and possible toxic effects. Within this review, we focused on the latest data regarding the biomedical use of AgNP-based nanostructures, including aspects related to their potential toxicity, unique physiochemical properties, and biofunctional behaviors, discussing herein the intrinsic anti-inflammatory, antibacterial, antiviral, and antifungal activities of silver-based nanostructures.
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Affiliation(s)
- Alexandra-Cristina Burdușel
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 313 Splaiul Independenței, Bucharest 060042, Romania.
| | - Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, Bucharest 011061, Romania.
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomiștilor Street, Magurele 077125, 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 Gheorghe Polizu Street, Bucharest 011061, Romania.
| | - Laurențiu Mogoantă
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova, 2 Petru Rareș Street, Craiova 200349, Romania.
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, Bucharest 011061, 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 Gheorghe Polizu Street, Bucharest 011061, Romania.
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83
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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 (Basel) 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] [What about the content of this article? (0)] [Affiliation(s)] [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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84
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Sönmez M, Ficai D, Ficai A, Alexandrescu L, Georgescu M, Trusca R, Gurau D, Titu MA, Andronescu E. Applications of mesoporous silica in biosensing and controlled release of insulin. Int J Pharm 2018; 549:179-200. [PMID: 30016674 DOI: 10.1016/j.ijpharm.2018.07.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 01/22/2023]
Abstract
The development of new oral insulin delivery systems could bring significant benefits to insulin-dependent patients due to the simplicity of the method, avoidance of pain caused by parenteral administration and maintenance of optimal therapeutic levels for a longer period. However, administration of such therapeutic proteins orally remains a challenge because insulin (Ins) is a very sensitive molecule and can be easily degraded under the existing pH conditions in the stomach and intestines. Moreover, due to the large size of insulin, intestinal epithelium permeability is very low. This could be improved by immobilizing insulin in the mesoporous silica pores (MSN), acting as a shield to protect the molecule integrity from the proteolytic degradation existing in the stomach and upper part of the small intestine. Due to the high adsorption capacity of insulin, biocompatibility, ease of functionalization with various organic and/or inorganic groups, high mechanical and chemical resistance, adjustable pore size and volume, MSN is considered an ideal candidate for the development of controlled release systems that are sensitive to various stimuli (pH, temperature) as well as to glucose. Modifying MSN surfaces by coating with various mucoadhesive polymers (chitosan, alginate, etc.) will also facilitate interaction with the intestinal mucus and improve intestinal retention time. Moreover, the development of glucose-responsive systems for achieving MSN-based self-regulated insulin delivery, decorated with various components serving as sensors - glucose oxidase (GODx) and phenylboronic acid (PBA) that can control the insulin dosage, avoiding overdose leading to serious hypoglycemia. MSN have also been tested for application as biosensors for glucose monitoring.
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Affiliation(s)
- Maria Sönmez
- Research Institute of the University of Bucharest, 36-46 bd. M. Kogalniceanu, Bucharest, Romania
| | - Denisa Ficai
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Polizu St., Bucharest, Romania
| | - Anton Ficai
- S.C. Metav R&D S.A, 31 C.A. Rosetti Str., Bucharest, Romania
| | - Laurentia Alexandrescu
- National Research & Development Institute for Textiles and Leather-Division: Leather and Footwear Research Institute, 93 Ion Minulescu St., Bucharest, Romania
| | - Mihai Georgescu
- National Research & Development Institute for Textiles and Leather-Division: Leather and Footwear Research Institute, 93 Ion Minulescu St., Bucharest, Romania
| | - Roxana Trusca
- S.C. Metav R&D S.A, 31 C.A. Rosetti Str., Bucharest, Romania
| | - Dana Gurau
- National Research & Development Institute for Textiles and Leather-Division: Leather and Footwear Research Institute, 93 Ion Minulescu St., Bucharest, Romania
| | | | - Ecaterina Andronescu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Polizu St., Bucharest, Romania.
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85
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Radulescu M, Popescu S, Ficai D, Sonmez M, Oprea O, Spoiala A, Ficai A, Andronescu E. Advances in Drug Delivery Systems, from 0 to 3D superstructures. Curr Drug Targets 2018; 19:393-405. [DOI: 10.2174/1389450117666160401122926] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 03/18/2016] [Indexed: 11/22/2022]
Affiliation(s)
- Marius Radulescu
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Simona Popescu
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Denisa Ficai
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Maria Sonmez
- Leather and Footwear Research Institute, Department of Rubber, 93 Ion Minulescu street, 031215, Bucharest, Romania
| | - Ovidiu Oprea
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Angela Spoiala
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Anton Ficai
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
| | - Ecaterina Andronescu
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; 1-7 Polizu Str., 011061 Bucharest, Romania
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86
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Ficai D, Ardelean IL, Holban AM, Diţu LM, Gudovan D, Sönmez M, Truşcă R, Kaya A, Ficai A, Andronescu E. Manufacturing nanostructured chitosan-based 2D sheets with prolonged antimicrobial activity. Rom J Morphol Embryol 2018; 59:517-525. [PMID: 30173257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The purpose of this study was to synthesize, characterize and test the antimicrobial and antifungal activity of chitosan-based hydrogels containing metal (silver - Ag) and oxide (zinc oxide - ZnO) nanoparticles (NPs) but also natural compounds such as usnic acid (UA). The two-dimensional (2D) sheets were obtained by electrospinning technique, with the aim to produce multifunctional wound dressing with regenerative and even anti-infective roles. The most important advantages of the electrospinning technique are related to the possibility of obtaining fibers with controlled morphology, usually having high specific surface and water and air penetration and the possibility of functionalizing these fibers and nets depending on the desired application. These advantages make it possible to use electrospinning for a wide range of biomedical applications, such as tissue engineering, controlled release, implantology, wound healing, and more. The obtained composite materials were characterized by infrared (IR) spectroscopy and scanning electron microscopy (SEM) and tested against common pathogens: Pseudomonas aeruginosa (Gram-negative staining), Staphylococcus aureus (Gram-positive staining) and Candida albicans (fungus).
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Affiliation(s)
- Denisa Ficai
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, National Centre for Micro and Nanomaterials, Bucharest, Romania;
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87
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Balaure PC, Boarca B, Popescu RC, Savu D, Trusca R, Vasile BȘ, Grumezescu AM, Holban AM, Bolocan A, Andronescu E. Bioactive mesoporous silica nanostructures with anti-microbial and anti-biofilm properties. Int J Pharm 2017; 531:35-46. [PMID: 28797969 DOI: 10.1016/j.ijpharm.2017.08.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 07/25/2017] [Accepted: 08/04/2017] [Indexed: 01/10/2023]
Abstract
The increasing rate of antibiotic resistant bacteria associated with nosocomial infections in severely ill patients has urged the need for new antibacterial therapies. Nanostructured materials represent emerging innovative approaches to controlled delivery of different antimicrobial drugs. Delivery systems encapsulating natural compounds with antibacterial effects, such as essential oils have shown a great potential. Herein we report the development of SiO2 mesoporous nanosystems loaded with eucalyptus (EUC), orange (ORA), and cinnamon (CIN) essential oils. These systems were characterized with respect to morphology (using scanning electron microscopy, SEM, and transmission electron microscopy, TEM), porosity (by BET and TEM analysis), chemical composition (by X-ray diffraction, XRD, and Fourier transform infrared spectrometry, FTIR) and loading capacity (by thermogravimetric analysis, TGA). The anti-bacterial and anti-adherence effects were tested against clinically relevant microbial species (Staphylococcus aureus ATCC 25923; Escherichia coli ATCC 25922; and Candida albicans ATCC 10231), while the biocompatibility was evaluated by in vitro tests with L929 mouse fibroblast cells.
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Affiliation(s)
- Paul Cătălin Balaure
- Department of Organic Chemistry, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania
| | - Bianca Boarca
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania
| | - Roxana Cristina Popescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania; Department of Life and Environmental Physics, "Horia Hulubei" National Institute for Physics and Nuclear Engineering, Magurele, Bucharest, Romania
| | - Diana Savu
- Department of Life and Environmental Physics, "Horia Hulubei" National Institute for Physics and Nuclear Engineering, Magurele, Bucharest, Romania
| | - Roxana Trusca
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania
| | - Bogdan Ștefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania
| | - Alexandru Mihai Grumezescu
- Division of Earth, Environmental and Life Sciences, Research Institute of the University of Bucharest (ICUB), Bucharest, Romania.
| | - Alina Maria Holban
- Division of Earth, Environmental and Life Sciences, Research Institute of the University of Bucharest (ICUB), Bucharest, Romania; Microbiology and Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Alexandra Bolocan
- Emergency University Hospital, Bucharest, Romania; "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania
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Popescu RC, Andronescu E, Vasile BȘ, Truşcă R, Boldeiu A, Mogoantă L, Mogoșanu GD, Temelie M, Radu M, Grumezescu AM, Savu D. Fabrication and Cytotoxicity of Gemcitabine-Functionalized Magnetite Nanoparticles. Molecules 2017; 22:molecules22071080. [PMID: 28657606 PMCID: PMC6152359 DOI: 10.3390/molecules22071080] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/10/2017] [Accepted: 06/21/2017] [Indexed: 12/31/2022] Open
Abstract
Nanotechnology has been successfully used for the fabrication of targeted anti-cancer drug carriers. This study aimed to obtain Fe₃O₄ nanoparticles functionalized with Gemcitabine to improve the cytotoxic effects of the chemotherapeutic substance on cancer cells. The (un) functionalized magnetite nanoparticles were synthesized using a modified co-precipitation method. The nanoconjugate characterization was performed by XRD, SEM, SAED and HRTEM; the functionalizing of magnetite with anti-tumor substances has been highlighted through TGA. The interaction with biologic media has been studied by means of stability and agglomeration tendency (using DLS and Zeta Potential); also, the release kinetics of the drug in culture media was evaluated. Cytotoxicity of free-Gemcitabine and the obtained nanoconjugate were evaluated on human BT 474 breast ductal carcinoma, HepG2 hepatocellular carcinoma and MG 63 osteosarcoma cells by MTS. In parallel, cellular morphology of these cells were examined through fluorescence microscopy and SEM. The localization of the nanoparticles related to the cells was studied using SEM, EDX and TEM. Hemolysis assay showed no damage of erythrocytes. Additionally, an in vivo biodistribution study was made for tracking where Fe₃O₄@Gemcitabine traveled in the body of mice. Our results showed that the transport of the drug improves the cytotoxic effects in comparison with the one produced by free Gemcitabine for the BT474 and HepG2 cells. The in vivo biodistribution test proved nanoparticle accumulation in the vital organs, with the exception of spleen, where black-brown deposits have been found. These results indicate that our Gemcitabine-functionalized nanoparticles are a promising targeted system for applications in cancer therapy.
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Affiliation(s)
- Roxana Cristina Popescu
- Department of Life and Environmental Physics, "Horia Hulubei" National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, Măgurele 077125, Romania.
- 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, Bucharest 011061, 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, Bucharest 011061, 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, Bucharest 011061, Romania.
| | - Roxana Truşcă
- 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, Bucharest 011061, Romania.
| | - Adina Boldeiu
- Laboratory of Nanobiotechnology, National Institute for Research and Development in Microtechnologies, 12A Erou Iancu Nicolae Street, Bucharest 077190, Romania.
| | - Laurențiu Mogoantă
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova, 2 Petru Rareș Street, Craiova 200349, Romania.
| | - George Dan Mogoșanu
- Department of Pharmacognosy and Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 2 Petru Rareș Street, Craiova 200349, Romania.
| | - Mihaela Temelie
- Department of Life and Environmental Physics, "Horia Hulubei" National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, Măgurele 077125, Romania.
| | - Mihai Radu
- Department of Life and Environmental Physics, "Horia Hulubei" National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, Măgurele 077125, 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, Bucharest 011061, Romania.
| | - Diana Savu
- Department of Life and Environmental Physics, "Horia Hulubei" National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, Măgurele 077125, Romania.
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89
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Ficai D, Sandulescu M, Ficai A, Andronescu E, Yetmez M, Agrali O, Elemek E, Gunduz O, Sahin Y, Oktar F. Drug Delivery Systems for Dental Applications. CURR ORG CHEM 2016. [DOI: 10.2174/1385272820666160511104145] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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90
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Gionea A, Andronescu E, Voicu G, Bleotu C, Surdu VA. Influence of hot isostatic pressing on ZrO2-CaO dental ceramics properties. Int J Pharm 2016; 510:439-48. [PMID: 26481467 DOI: 10.1016/j.ijpharm.2015.10.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/24/2015] [Accepted: 10/12/2015] [Indexed: 11/16/2022]
Abstract
Different hot isostatic pressing conditions were used to obtain zirconia ceramics, in order to assess the influence of HIP on phase transformation, compressive strength, Young's modulus and density. First, CaO stabilized zirconia powder was synthesized through sol-gel method, using zirconium propoxide, calcium isopropoxide and 2-metoxiethanol as precursors, then HIP treatment was applied to obtain final dense ceramics. Ceramics were morphologically and structurally characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Density measurements, compressive strength and Young's modulus tests were also performed in order to evaluate the effect of HIP treatment. The zirconia powders heat treated at 500°C for 2h showed a pure cubic phase with average particle dimension about 70nm. The samples that were hot isostatic pressed presented a mixture of monoclinic-tetragonal or monoclinic-cubic phases, while for pre-sintered samples, cubic zirconia was the single crystalline form. Final dense ceramics were obtained after HIP treatment, with relative density values higher than 94%. ZrO2-CaO ceramics presented high compressive strength, with values in the range of 500-708.9MPa and elastic behavior with Young's modulus between 1739MPa and 4372MPa. Finally zirconia ceramics were tested for biocompatibility allowing the normal development of MG63 cells in vitro.
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Affiliation(s)
- Alin Gionea
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Gh. Polizu St., Bucharest, Romania
| | - Ecaterina Andronescu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Gh. Polizu St., Bucharest, Romania
| | - Georgeta Voicu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Gh. Polizu St., Bucharest, Romania.
| | - Coralia Bleotu
- Stefan S. Nicolau Institute of Virology, 285 Mihai Bravu Avenue, Bucharest, Romania
| | - Vasile-Adrian Surdu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Gh. Polizu St., Bucharest, Romania
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91
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Stoica AO, Andronescu E, Ghitulica CD, Voicu G, Grumezescu AM, Popa M, Chifiriuc MC. Preparation and characterization of undoped and cobalt doped ZnO for antimicrobial use. Int J Pharm 2016; 510:430-8. [PMID: 26394121 DOI: 10.1016/j.ijpharm.2015.09.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 09/18/2015] [Indexed: 11/25/2022]
Abstract
The objective of this study was to carry out the synthesis by sol-gel method of undoped and cobalt doped ZnO, with different cobalt concentrations (0.5-5mol%), using as stabilizer monoethanolamine (MEA) in a molar ratio ZnO:MEA=1:2. The dry gel was thermally treated at 500°C/5h, respectively at 1100°C/30min. All the thermal treated samples were of wurtzite type with an hexagonal structure. The doping with Co(2+) induced change of lattice parameters and of crystallite size, proving the successful interleaving of Co(2+) into the ZnO lattice. From the morphological point of view, the thermal treatment at 1100°C/30min led to a higher degree of compactness of the ZnO granules. At 500°C/5h there were formed polyhedral or spherical nanometric particles (25-50nm) which have been agglomerated into aggregates with sizes over 1μm. From the biological point of view, the quantitative analyses of antimicrobial activity have shown that the ZnO doped with cobalt has inhibited the ability of the Bacillus subtilis and Escherichia coli bacterial strains to colonize the inert substrate and therefore, can be used in the design of new antimicrobial strategies.
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Affiliation(s)
- Angelica Oprea Stoica
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, 1-7 Gh. Polizu Str., 011061, Bucharest, Romania; Research Institute of the University of Bucharest, Spl. Independentei 91-95, Bucharest, Romania
| | - Ecaterina Andronescu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, 1-7 Gh. Polizu Str., 011061, Bucharest, Romania; Research Institute of the University of Bucharest, Spl. Independentei 91-95, Bucharest, Romania
| | - Cristina Daniela Ghitulica
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, 1-7 Gh. Polizu Str., 011061, Bucharest, Romania; Research Institute of the University of Bucharest, Spl. Independentei 91-95, Bucharest, Romania
| | - Georgeta Voicu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, 1-7 Gh. Polizu Str., 011061, Bucharest, Romania; Research Institute of the University of Bucharest, Spl. Independentei 91-95, Bucharest, Romania.
| | - Alexandru Mihai Grumezescu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, 1-7 Gh. Polizu Str., 011061, Bucharest, Romania; Research Institute of the University of Bucharest, Spl. Independentei 91-95, Bucharest, Romania
| | - Marcela Popa
- University of Bucharest, Faculty of Biology, Department of Microbiology Immunology, Aleea Portocalelor no 1-3, 060101 Bucharest, Romania; Research Institute of the University of Bucharest, Spl. Independentei 91-95, Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- University of Bucharest, Faculty of Biology, Department of Microbiology Immunology, Aleea Portocalelor no 1-3, 060101 Bucharest, Romania; Research Institute of the University of Bucharest, Spl. Independentei 91-95, Bucharest, Romania
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92
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Ilie A, Ghiţulică C, Andronescu E, Cucuruz A, Ficai A. New composite materials based on alginate and hydroxyapatite as potential carriers for ascorbic acid. Int J Pharm 2016; 510:501-7. [DOI: 10.1016/j.ijpharm.2016.01.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/10/2016] [Accepted: 01/13/2016] [Indexed: 12/23/2022]
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93
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Cucuruz AT, Andronescu E, Ficai A, Ilie A, Iordache F. Synthesis and characterization of new composite materials based on poly(methacrylic acid) and hydroxyapatite with applications in dentistry. Int J Pharm 2016; 510:516-23. [DOI: 10.1016/j.ijpharm.2016.01.061] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/19/2016] [Accepted: 01/23/2016] [Indexed: 10/22/2022]
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94
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Sonmez M, Verisan C, Voicu G, Ficai D, Ficai A, Oprea AE, Vlad M, Andronescu E. Extended release of vitamins from magnetite loaded polyanionic polymeric beads. Int J Pharm 2016; 510:457-64. [DOI: 10.1016/j.ijpharm.2015.11.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/23/2015] [Accepted: 11/24/2015] [Indexed: 10/22/2022]
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95
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Voicu G, Geanaliu-Nicolae RE, Pîrvan AA, Andronescu E, Iordache F. Synthesis, characterization and bioevaluation of drug-collagen hybrid materials for biomedical applications. Int J Pharm 2016; 510:474-84. [DOI: 10.1016/j.ijpharm.2015.11.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 11/09/2015] [Accepted: 11/29/2015] [Indexed: 10/22/2022]
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96
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Radulescu M, Andronescu E, Dolete G, Popescu RC, Fufă O, Chifiriuc MC, Mogoantă L, Bălşeanu TA, Mogoşanu GD, Grumezescu AM, Holban AM. Silver Nanocoatings for Reducing the Exogenous Microbial Colonization of Wound Dressings. Materials (Basel) 2016; 9:ma9050345. [PMID: 28773468 PMCID: PMC5503056 DOI: 10.3390/ma9050345] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/05/2016] [Accepted: 05/04/2016] [Indexed: 01/08/2023]
Abstract
The aim of this work was to obtain an antimicrobial coating (NanoAg) for polyester-nylon wound dressings (WDs) for reducing the risk of exogenous wound related infections. The as-prepared NanoAg-WDs were characterized by XRD (X-ray Diffraction), SEM (Scanning Electron Microscopy), TEM (Transmission Electron Microscopy), SAED (Selected Area Electron Diffraction) and IRM (InfraRed Microscopy). Biological characterization consisted of in vitro evaluation of the interaction with fibroblast cell cultures and in vivo biodistribution studies of AgNPs on mice models. Then, specimens of commercial WDs were immersed in a glucose and NaOH solution of silver nanoparticles, followed by the subsequent dropwise addition of AgNO₃ solution. The antimicrobial efficiency of the NanoAg-WDs was assessed by in vitro qualitative and quantitative analyses on Staphylococcus aureus and Pseudomonas aeruginosa strains. The in vitro and in vivo studies demonstrated that the tested nanoparticles utilized to coat WDs have a good biocompatibility, allowing the normal development of cultured human cells and revealing a normal biodistribution within a mouse model, without toxic effects. The modified and viable cells count analyses proved that the modified WDs exhibit an improved inhibitory activity of microbial colonization, attachment and biofilm growth. The reported data recommend this type of coatings to obtain modified WDs with antibacterial properties, able to prevent the exogenous microbial contamination of the wound tissue, colonization and further biofilm development.
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Affiliation(s)
- Marius Radulescu
- Department of Inorganic Chemistry, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, Bucharest 011061, 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, Bucharest 011061, Romania.
| | - Georgiana Dolete
- 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, Bucharest 011061, 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, 1-7 Polizu Street, Bucharest 011061, Romania.
- Department of Life and Environmental Physics, "Horia Hulubei" National Institute of Physics and Nuclear Engineering, Magurele 077125, Romania.
| | - Oana Fufă
- 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, Bucharest 011061, Romania.
- Lasers Department, National Institute for Laser, Plasma and Radiation Physics, Magurele 077125, Romania.
| | - Mariana Carmen Chifiriuc
- Microbiology Immunology Department, Faculty of Biology, Research Institute of the University of Bucharest (ICUB), University of Bucharest, 1-3 Portocalelor Lane, Sector 5, Bucharest 77206, Romania.
| | - Laurenţiu Mogoantă
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova 2 Petru Rareş Street, Craiova 200349, Romania.
| | - Tudor-Adrian Bălşeanu
- Research Center for Clinical and Experimental Medicine, University of Medicine and Pharmacy of Craiova 2 Petru Rareş Street, Craiova 200349, Romania.
| | - George Dan Mogoşanu
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova 2 Petru Rareş Street, Craiova 200349, 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, Bucharest 011061, 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, Bucharest 011061, Romania.
- Microbiology Immunology Department, Faculty of Biology, Research Institute of the University of Bucharest (ICUB), University of Bucharest, 1-3 Portocalelor Lane, Sector 5, Bucharest 77206, Romania.
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97
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Oprea AE, Pandel LM, Dumitrescu AM, Andronescu E, Grumezescu V, Chifiriuc MC, Mogoantă L, Bălşeanu TA, Mogoşanu GD, Socol G, Grumezescu AM, Iordache F, Maniu H, Chirea M, Holban AM. Bioactive ZnO Coatings Deposited by MAPLE-An Appropriate Strategy to Produce Efficient Anti-Biofilm Surfaces. Molecules 2016; 21:molecules21020220. [PMID: 26891290 PMCID: PMC6273712 DOI: 10.3390/molecules21020220] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 02/03/2016] [Accepted: 02/05/2016] [Indexed: 11/16/2022] Open
Abstract
Deposition of bioactive coatings composed of zinc oxide, cyclodextrin and cefepime (ZnO/CD/Cfp) was performed by the Matrix Assisted Pulsed Laser Evaporation (MAPLE) technique. The obtained nanostructures were characterized by X-ray diffraction, IR microscopy and scanning electron microscopy. The efficient release of cefepime was correlated with an increased anti-biofilm activity of ZnO/CD/Cfp composites. In vitro and in vivo tests have revealed a good biocompatibility of ZnO/CD/Cfp coatings, which recommend them as competitive candidates for the development of antimicrobial surfaces with biomedical applications. The release of the fourth generation cephalosporin Cfp in a biologically active form from the ZnO matrix could help preventing the bacterial adhesion and the subsequent colonization and biofilm development on various surfaces, and thus decreasing the risk of biofilm-related infections.
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Affiliation(s)
- Alexandra Elena Oprea
- 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, Bucharest 011061, Romania.
| | - Loredana Mihaela Pandel
- 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, Bucharest 011061, Romania.
| | - Ana Maria Dumitrescu
- 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, Bucharest 011061, 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, 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,1-7 Polizu Street, Bucharest 011061, Romania.
- Lasers Department, National Institute for Lasers, Plasma & Materials, P. O. Box MG-36, Magurele 769231, Romania.
| | - Mariana Carmen Chifiriuc
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalelor Lane, Sector 5, Bucharest 77206, Romania.
- Research Institute of the University of Bucharest, ICUB, Splaiul Independentei 91-95, Bucharest 010271, Romania.
| | - Laurenţiu Mogoantă
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova, Petru Rares Street, No. 2, Craiova 200349, Romania.
| | - Tudor-Adrian Bălşeanu
- Research Center for Clinical and Experimental Medicine, University of Medicine and Pharmacy of Craiova, Petru Rares Street, No. 2, Craiova 200349, Romania.
| | - George Dan Mogoşanu
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, Petru Rares Street, No. 2, Craiova 200349, Romania.
| | - Gabriel Socol
- Lasers Department, National Institute for Lasers, Plasma & Materials, P. O. Box MG-36, Magurele 769231, 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, Bucharest 011061, Romania.
| | - Florin Iordache
- Flow Cytometry and Cell Therapy Laboratory, Institute of Cellular Biology and Pathology "NicolaeSimionescu" (ICBP), Bucharest 050568, Romania.
| | - Horia Maniu
- Flow Cytometry and Cell Therapy Laboratory, Institute of Cellular Biology and Pathology "NicolaeSimionescu" (ICBP), Bucharest 050568, Romania.
| | - Mariana Chirea
- Department of Electrical & Electronics Engineering, IDEALAB, Koç University, Rumeli Feneri Yolu, Sariyer, Istanbul 34450, Turkey.
| | - 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, Bucharest 011061, Romania.
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalelor Lane, Sector 5, Bucharest 77206, Romania.
- Research Institute of the University of Bucharest, ICUB, Splaiul Independentei 91-95, Bucharest 010271, Romania.
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98
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Gunduz O, Yetmez M, Sonmez M, Georgescu M, Alexandrescu L, Ficai A, Ficai D, Andronescu E. Mesoporous materials used in medicine and environmental applications. Curr Top Med Chem 2016; 15:1501-15. [PMID: 25877095 DOI: 10.2174/1568026615666150414121010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 12/16/2014] [Accepted: 01/10/2015] [Indexed: 11/22/2022]
Abstract
Mesoporous materials synthesized in the presence of templates, are commonly used for environment and medical applications. Due to the properties it holds, mesoporous silica nanoparticles is an excellent material for use in medical field, biomaterials, active principles delivery systems, enzyme immobilization and imaging. Their structure allows embedding large and small molecules, DNA adsorption and genetic transfer. Using mesoporous silica nanoparticles for delivery of bioactive molecules can protect them against degradation under physiological conditions, allow controlled drugs release and minimize side effects on healthy tissues. Cellular tests performed on mesoporous silica nanoparticles demonstrate that MSN's cytotoxicity is dependent on the size and concentration and suggests the use of larger size nanoparticles is optimal for medical applications. Mesoporous materials possess high biological compatibility, are non-toxic and can be easily modified by functionalizing the surface or inside the pores by grafting or co-condensation method. The structure, composition and pores size of this material can be optimized during synthesis by varying the stoichiometric reactants, reaction conditions, nature of the template's molecules or by functionalization method.
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Affiliation(s)
| | | | - Maria Sonmez
- POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science; Centre of Micro and Nanomaterials, 1-7 Polizu St., Bucharest, Romania.
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99
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Rădulescu M, Andronescu E, Cirja A, Holban AM, Mogoantă L, Bălşeanu TA, Cătălin B, Neagu TP, Lascăr I, Florea DA, Grumezescu AM, Ciubuca B, Lazăr V, Chifiriuc MC, Bolocan A. Antimicrobial coatings based on zinc oxide and orange oil for improved bioactive wound dressings and other applications. Rom J Morphol Embryol 2016; 57:107-114. [PMID: 27151695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This work presents a novel nano-modified coating for wound dressings and other medical devices with anti-infective properties, based on functionalized zinc oxide nanostructures and orange oil (ZnO@OO). The obtained nanosurfaces were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED), differential thermal analysis-thermogravimetry (DTA-TG), X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) spectroscopy. The obtained nanocomposite coatings exhibited an antimicrobial activity superior to bare ZnO nanoparticles (NPs) and to the control antibiotic against Staphylococcus aureus and Escherichia coli, as revealed by the lower minimal inhibitory concentration values. For the quantitative measurement of biofilm-embedded microbial cells, a culture-based, viable cell count method was used. The coated wound dressings proved to be more resistant to S. aureus microbial colonization and biofilm formation compared to the uncoated controls. These results, correlated with the good in vivo biodistribution open new directions for the design of nanostructured bioactive coating and surfaces, which can find applications in the medical field, for obtaining improved bioactive wound dressings and prosthetic devices, but also in food packaging and cosmetic industry.
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Affiliation(s)
- Marius Rădulescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, Romania;
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