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Baroi AM, Fierascu I, Ghizdareanu AI, Trica B, Fistos T, Matei (Brazdis) RI, Fierascu RC, Firinca C, Sardarescu ID, Avramescu SM. Green Approach for Synthesis of Silver Nanoparticles with Antimicrobial and Antioxidant Properties from Grapevine Waste Extracts. Int J Mol Sci 2024; 25:4212. [PMID: 38673798 PMCID: PMC11050308 DOI: 10.3390/ijms25084212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/04/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
The present work aims to study the possibilities of developing silver nanoparticles using natural extracts of grape pomace wastes originating from the native variety of Fetească Neagră 6 Șt. This study focused on investigating the influence of grape pomace extract obtained by two different extraction methods (classical temperature extraction and microwave-assisted extraction) in the phytosynthesis process of metal nanoparticles. The total phenolic content of the extracts was assessed using the spectrophotometric method with the Folin-Ciocâlteu reagent, while the identification and quantification of specific components were conducted through high-performance liquid chromatography with a diode array detector (HPLC-DAD). The obtained nanoparticles were characterized by UV-Vis absorption spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM), along with assessing their antioxidant and antimicrobial properties against Gram-positive bacteria. The data collected from the experiments indicated that the nanoparticles were formed in a relatively short period of time (96 h) and, for the experimental variant involving the use of a 1:1 ratio (v/v, grape pomace extract: silver nitrate) for the nanoparticle phytosynthesis, the smallest crystallite sizes (from X-ray diffraction-4.58 nm and 5.14 nm) as well as spherical or semispherical nanoparticles with the lowest average diameters were obtained (19.99-23 nm, from TEM analysis). The phytosynthesis process was shown to enhance the antioxidant properties (determined using the DPPH assay) and the antimicrobial potential (tested against Gram-positive strains) of the nanoparticles, as evidenced by comparing their properties with those of the parent extracts; at the same time, the nanoparticles exhibited a selectivity in action, being active against the Staphylococcus aureus strain while presenting no antimicrobial potential against the Enterococcus faecalis strain.
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Affiliation(s)
- Anda Maria Baroi
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd., 011464 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd., 011464 Bucharest, Romania
| | - Andra-Ionela Ghizdareanu
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
| | - Bogdan Trica
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
| | - Toma Fistos
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gh. Polizu Str., 011061 Bucharest, Romania;
| | - Roxana Ioana Matei (Brazdis)
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gh. Polizu Str., 011061 Bucharest, Romania;
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gh. Polizu Str., 011061 Bucharest, Romania;
| | - Cristina Firinca
- National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania; (A.M.B.); (A.-I.G.); (B.T.); (T.F.); (R.I.M.); (R.C.F.); (C.F.)
- Department of Botany and Microbiology, Faculty of Biology, University of Bucharest, 91–95 Spl. Independenței, 050095 Bucharest, Romania
| | - Ionela Daniela Sardarescu
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gh. Polizu Str., 011061 Bucharest, Romania;
- National Research and Development Institute for Biotechnology in Horticulture, Bucharet-Pitesti Str., 117715 Stefanesti, Romania
| | - Sorin Marius Avramescu
- Department of Inorganic Chemistry, Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 030018 Bucharest, Romania;
- Research Centre for Environmental Protection and Waste Management (PROTMED), University of Bucharest, 91–95 Spl. Independenței, Sect. 5, 050107 Bucharest, Romania
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Lupuliasa AI, Baroi AM, Avramescu SM, Vasile BS, Prisada RM, Fierascu RC, Fierascu I, Sărdărescu (Toma) DI, Ripszky Totan A, Voicu-Bălășea B, Pițuru SM, Popa L, Ghica MV, Dinu-Pîrvu CE. Application of Common Culinary Herbs for the Development of Bioactive Materials. Plants (Basel) 2024; 13:997. [PMID: 38611526 PMCID: PMC11013859 DOI: 10.3390/plants13070997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024]
Abstract
Hyssop (Hyssopus officinalis L.) and oregano (Origanum vulgare L.), traditionally used for their antimicrobial properties, can be considered viable candidates for nanotechnology applications, in particular for the phytosynthesis of metal nanoparticles. The present work aims to evaluate the potential application of hyssop and oregano for the phytosynthesis of silver nanoparticles, as well as to evaluate the biological activities of their extracts and obtained nanoparticles (antioxidant potential, as well as cell viability, inflammation level and cytotoxicity in human fibroblasts HFIB-G cell line studies). In order to obtain natural extracts, two extraction methods were applied (classical temperature extraction and microwave-assisted extraction), with the extraction method having a major influence on their composition, as demonstrated by both the total phenolic compounds (significantly higher for the microwave-assisted extraction; the oregano extracts had consistently higher TPC values, compared with the hyssop extracts) and in terms of individual components identified via HPLC. The obtained nanoparticles ware characterized via X-ray diffraction (XRD) and transmission electron microscopy (TEM), with the lowest dimension nanoparticles being recorded for the nanoparticles obtained using the oregano microwave extract (crystallite size 2.94 nm through XRD, average diameter 10 nm via TEM). The extract composition and particle size also influenced the antioxidant properties (over 60% DPPH inhibition being recorded for the NPs obtained using the oregano microwave extract). Cell viability was not affected at the lowest tested concentrations, which can be correlated with the nitric oxide level. Cell membrane integrity was not affected after exposure to classic temperature hyssop extract-NPs, while the other samples led to a significant LDH increase.
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Affiliation(s)
- Alina Ioana Lupuliasa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (L.P.); (M.V.G.); (C.-E.D.-P.)
| | - Anda-Maria Baroi
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, 202 Splaiul Independenței, 060021 Bucharest, Romania; (A.-M.B.); (I.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăști Blvd., 011464 Bucharest, Romania
| | - Sorin Marius Avramescu
- Department of Inorganic Chemistry, Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 030018 Bucharest, Romania;
- Research Centre for Environmental Protection and Waste Management (PROTMED), University of Bucharest, Splaiul Independenței 91-95, Sect. 5, 050107 Bucharest, Romania
| | - Bogdan Stefan Vasile
- Research Center for Advanced Materials, Products and Processes, National University of Science and Technology POLITEHNICA Bucharest, 313 Splaiul Independenţei, 060042 Bucharest, Romania;
- National Research Center for Micro and Nanomaterials, National University of Science and Technology POLITEHNICA Bucharest, 313 Splaiul Independenţei, 060042 Bucharest, Romania
| | - Răzvan Mihai Prisada
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (L.P.); (M.V.G.); (C.-E.D.-P.)
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, 202 Splaiul Independenței, 060021 Bucharest, Romania; (A.-M.B.); (I.F.)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania;
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, 202 Splaiul Independenței, 060021 Bucharest, Romania; (A.-M.B.); (I.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăști Blvd., 011464 Bucharest, Romania
| | - Daniela Ionela Sărdărescu (Toma)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania;
- National Research and Development Institute for Biotechnology in Horticulture, 37 Bucureti-Pitesti Str., 117715 Ștefănești, Romania
| | - Alexandra Ripszky Totan
- Department of Biochemistry, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 17-23 Plevnei Street, 020021 Bucharest, Romania;
- Interdisciplinary Center for Dental Research and Development, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (B.V.-B.); (S.-M.P.)
| | - Bianca Voicu-Bălășea
- Interdisciplinary Center for Dental Research and Development, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (B.V.-B.); (S.-M.P.)
| | - Silviu-Mirel Pițuru
- Interdisciplinary Center for Dental Research and Development, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (B.V.-B.); (S.-M.P.)
- Department of Organization, Professional Legislation and Management of the Dental Office, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 17-23 Plevnei Street, 020021 Bucharest, Romania
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (L.P.); (M.V.G.); (C.-E.D.-P.)
- Innovative Therapeutic Structures R&D Center (InnoTher), “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (L.P.); (M.V.G.); (C.-E.D.-P.)
- Innovative Therapeutic Structures R&D Center (InnoTher), “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (L.P.); (M.V.G.); (C.-E.D.-P.)
- Innovative Therapeutic Structures R&D Center (InnoTher), “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
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Marchidan IG, Ortan A, Marcu Spinu S, Avramescu SM, Avram I, Fierascu RC, Babeanu N. Chemical Composition and Biological Properties of New Romanian Lavandula Species. Antioxidants (Basel) 2023; 12:2127. [PMID: 38136246 PMCID: PMC10741150 DOI: 10.3390/antiox12122127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
The aims of the present study were to evaluate for the first time the chemical composition and antioxidant, antibacterial, antifungal and antiproliferative potentials of the Romanian George 90 lavender species, as well as parental species, L. angustifolia and L. latifolia. The L. angustifolia, L. latifolia and George 90 essential oils were analyzed by GC-MS/MS and the L. angustifolia, L. latifolia and George 90 hydroalcoholic extracts were analyzed by HPLC-DAD. The antioxidant, antibacterial, antifungal and antiproliferative assays revealed that all the investigated species showed significant activities. The results highlighted the chemical composition and the promising biological potentials of the L. angustifolia, L. latifolia and George 90 lavender species, validating their ethnomedicinal value, which offers potential applications as natural drugs.
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Affiliation(s)
- Ionuț Georgică Marchidan
- Biotechnologies Department, Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd, District 1, 011464 Bucharest, Romania; (I.G.M.); (N.B.)
| | - Alina Ortan
- Mathematics, Physics and Measurements Department, Faculty of Land Reclamation and Environmental Engineering, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd, District 1, 011464 Bucharest, Romania;
| | - Simona Marcu Spinu
- Mathematics, Physics and Measurements Department, Faculty of Land Reclamation and Environmental Engineering, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd, District 1, 011464 Bucharest, Romania;
| | - Sorin Marius Avramescu
- Department of Inorganic Chemistry, Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90–92 Soseaua Panduri, 050663 Bucharest, Romania;
| | - Ionela Avram
- Department of Genetics, University of Bucharest, 1-3-Aleea Portocalelor, 060101 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM–Bucharest, 060021 Bucharest, Romania;
| | - Narcisa Babeanu
- Biotechnologies Department, Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd, District 1, 011464 Bucharest, Romania; (I.G.M.); (N.B.)
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Fierascu RC, Lungulescu EM, Fierascu I, Stan MS, Voinea IC, Dumitrescu SI. Metal and Metal Oxide Nanoparticle Incorporation in Polyurethane Foams: A Solution for Future Antimicrobial Materials? Polymers (Basel) 2023; 15:4570. [PMID: 38231979 PMCID: PMC10708408 DOI: 10.3390/polym15234570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/18/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024] Open
Abstract
With the technological developments witnessed in recent decades, nanotechnology and nanomaterials have found uses in several common applications and products we encounter daily. On the other hand, polyurethane (PU) foams represent an extremely versatile material, being widely recognized for their extensive application possibilities and possessing a multitude of fundamental attributes that enhance their broad usability across various application fields. By combining the versatility of PU with the antimicrobial properties of nanoparticles, this emerging field holds promise for addressing the urgent need for effective antimicrobial materials in various applications. In this comprehensive review, we explore the synthesis methods, properties and applications of these nanocomposite materials, shedding light on their potential role in safeguarding public health and environmental sustainability. The main focus is on PU foams containing metal and metal oxide nanoparticles, but a brief presentation of the progress documented in the last few years regarding other antimicrobial nanomaterials incorporated into such foams is also given within this review in order to obtain a larger image of the possibilities to develop improved PU foams.
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Affiliation(s)
- Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 060021 Bucharest, Romania; (R.C.F.); (I.F.)
| | - Eduard-Marius Lungulescu
- National Institute for Research and Development in Electrical Engineering ICPE-CA, 313 Splaiul Unirii, 030138 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 060021 Bucharest, Romania; (R.C.F.); (I.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Bvd., 011464 Bucharest, Romania
| | - Miruna S. Stan
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (M.S.S.); (I.C.V.)
| | - Ionela C. Voinea
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (M.S.S.); (I.C.V.)
| | - Silviu Ionel Dumitrescu
- Central Emergency University Military Hospital, 013058 Bucharest, Romania;
- Medical-Surgical Department, Faculty of Medicine, Titu Maiorescu University of Medicine and Pharmacy, 031593 Bucharest, Romania
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Oprică GM, Panaitescu DM, Lixandru BE, Uşurelu CD, Gabor AR, Nicolae CA, Fierascu RC, Frone AN. Plant-Derived Nanocellulose with Antibacterial Activity for Wound Healing Dressing. Pharmaceutics 2023; 15:2672. [PMID: 38140013 PMCID: PMC10747278 DOI: 10.3390/pharmaceutics15122672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/15/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
The medical sector is one of the biggest consumers of single-use materials, and while the insurance of sterile media is non-negotiable, the environmental aspect is a chronic problem. Nanocellulose (NC) is one of the safest and most promising materials that can be used in medical applications due to its valuable properties like biocompatibility and biodegradability, along with its good mechanical properties and high water uptake capacity. However, NC has no bactericidal activity, which is a critical need for the effective prevention of infections in chronic diabetic wound dressing applications. Therefore, in this work, a natural product, propolis extract (PE), was used as an antibacterial agent, in different amounts, together with NC to obtain sponge-like structures (NC/PE). The scanning electron microscope (SEM) images showed well-impregnated cellulose fibers and a more compact structure with the addition of PE. According to the thermogravimetric analysis (TGA), the samples containing PE underwent thermal degradation before the unmodified NC due to the presence of volatile compounds in the extract. However, the peak degradation temperature in the first derivative thermogravimetric curves was higher for all the sponges containing PE when compared to the unmodified NC. The antibacterial efficacy of the samples was tested against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli, as well as on two clinically resistant isolates. The samples completely inhibited the development of Staphylococcus aureus, and Pseudomonas aeruginosa was partially inhibited, while Escherichia coli was resistant to the PE action. Considering the physical and biological properties along with the environmental and economic benefits, the development of an NC/PE wound dressing seems promising.
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Affiliation(s)
- Gabriela Mădălina Oprică
- National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (G.M.O.); (C.D.U.); (A.R.G.); (C.-A.N.); (R.C.F.); (A.N.F.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National University of Science and Technology POLITEHNICA Bucharest, 1-7 Gh. PolizuStreet, 011061 Bucharest, Romania
| | - Denis Mihaela Panaitescu
- National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (G.M.O.); (C.D.U.); (A.R.G.); (C.-A.N.); (R.C.F.); (A.N.F.)
| | - Brînduşa Elena Lixandru
- Cantacuzino National Medical-Military Institute for Research and Development, 103 Spl. Independentei, 050096 Bucharest, Romania;
| | - Catalina Diana Uşurelu
- National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (G.M.O.); (C.D.U.); (A.R.G.); (C.-A.N.); (R.C.F.); (A.N.F.)
- Department of Bioresources and Polymer Science, National University of Science and Technology Politehnica Bucharest, 1-7 Gh. PolizuStreet, 011061 Bucharest, Romania
| | - Augusta Raluca Gabor
- National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (G.M.O.); (C.D.U.); (A.R.G.); (C.-A.N.); (R.C.F.); (A.N.F.)
| | - Cristian-Andi Nicolae
- National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (G.M.O.); (C.D.U.); (A.R.G.); (C.-A.N.); (R.C.F.); (A.N.F.)
| | - Radu Claudiu Fierascu
- National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (G.M.O.); (C.D.U.); (A.R.G.); (C.-A.N.); (R.C.F.); (A.N.F.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National University of Science and Technology POLITEHNICA Bucharest, 1-7 Gh. PolizuStreet, 011061 Bucharest, Romania
| | - Adriana Nicoleta Frone
- National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (G.M.O.); (C.D.U.); (A.R.G.); (C.-A.N.); (R.C.F.); (A.N.F.)
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Fierascu IC, Fierascu I, Baroi AM, Ungureanu C, Spinu S, Avramescu SM, Somoghi R, Fierascu RC, Dinu-Parvu CE. Phytosynthesis of Silver Nanoparticles Using Leonurus cardiaca L. Extracts. Materials (Basel) 2023; 16:ma16093472. [PMID: 37176353 PMCID: PMC10180527 DOI: 10.3390/ma16093472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
The present work describes, for the first time in the literature, the phytosynthesis of silver nanoparticles using Leonurus cardiaca L. extracts. The influence of the extraction method (classical temperature extraction and microwave extraction), as well as of the extract concentration on the characteristics of the nanoparticles, was studied using analytical methods, such as UV-Vis spectrometry, X-ray diffraction, dynamic light scattering, and transmission electron microscopy. Experimental data suggest that use of lower extract concentration leads to smaller dimensions nanoparticles, the same effect using the extract obtained by microwave-assisted extraction. The smallest recorded crystallite sizes (by X-ray diffraction) were under 3 nm. The antioxidant properties (determined by the DPPH assay) and the antimicrobial potential (determined against Gram-negative and Gram-positive strains) are enhanced by the phytosynthesis process (as demonstrated by the comparison of the nanoparticles' properties with the parent extracts). The present work could also represent an important step in obtaining nanoparticles with enhanced properties and controlled morphologies, but also offers information on the phytosynthesis of metallic nanoparticles using low extract concentrations.
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Affiliation(s)
- Ioana Catalina Fierascu
- Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", 37 Dionisie Lupu Str., 030167 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Anda Maria Baroi
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Camelia Ungureanu
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
| | - Simona Spinu
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Sorin Marius Avramescu
- Faculty of Chemistry, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
| | - Raluca Somoghi
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
| | - Cristina Elena Dinu-Parvu
- Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", 37 Dionisie Lupu Str., 030167 Bucharest, Romania
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Fierascu RC, Fierascu I, Matei Brazdis RI, Manaila-Maximean D. Natural and Natural-Based Polymers: Recent Developments in Management of Emerging Pollutants. Polymers (Basel) 2023; 15:polym15092063. [PMID: 37177209 PMCID: PMC10181049 DOI: 10.3390/polym15092063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/19/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Anthropogenic activities lead to the issue of new classes of pollutants in the environment that are not currently monitored in environmental studies. This category of pollutants (known as emerging contaminants) includes a very wide range of target substances, such as pharmaceuticals, plant protection products, personal care products, dyes, toxins, microplastics and many other industrially important intermediaries. Together with an increasing demand for clean water (both for agricultural necessities and for the increasing population consumption), the need for the removal of emerging pollutants, simultaneously with the current "green chemistry" approach, opens the door for the industrial application of natural polymers in the area of environmental protection. Recent developments in this area are presented in this paper, as well as the application of these particular natural materials for the removal of other contaminants of interest (such as radioisotopes and nanoparticles). The current knowledge regarding the processes' kinetics is briefly presented, as well as the future development perspectives in this area.
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Affiliation(s)
- Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM-Bucharest, 060021 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, 060042 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM-Bucharest, 060021 Bucharest, Romania
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Roxana Ioana Matei Brazdis
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM-Bucharest, 060021 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, 060042 Bucharest, Romania
| | - Doina Manaila-Maximean
- Faculty of Applied Sciences, University "Politehnica" of Bucharest, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 3 Ilfov, 050044 Bucharest, Romania
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8
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Gîfu IC, Ianchiș R, Nistor CL, Petcu C, Fierascu I, Fierascu RC. Polyelectrolyte Coatings-A Viable Approach for Cultural Heritage Protection. Materials (Basel) 2023; 16:2873. [PMID: 37049167 PMCID: PMC10096418 DOI: 10.3390/ma16072873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/28/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
The continuous degradation of cultural heritage artifacts (due to different factors, including the rising air pollution, climate change or excessive biological activity, among others) requires the continuous development of protection strategies, technologies and materials. In this regard, polyelectrolytes have offered effective ways to fight against degradation but also to conserve the cultural heritage objects. In this review, we highlight the key developments in the creation and use of polyelectrolytes for the preservation, consolidation and cleaning of the cultural heritage artifacts (with particular focus on stone, metal and artifacts of organic nature, such as paper, leather, wood or textile). The state of the art in this area is presented, as well as future development perspectives.
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Affiliation(s)
- Ioana Cătălina Gîfu
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 060042 Bucharest, Romania;
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM–Bucharest, 060021 Bucharest, Romania; (C.L.N.); (C.P.); (I.F.)
| | - Raluca Ianchiș
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM–Bucharest, 060021 Bucharest, Romania; (C.L.N.); (C.P.); (I.F.)
| | - Cristina Lavinia Nistor
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM–Bucharest, 060021 Bucharest, Romania; (C.L.N.); (C.P.); (I.F.)
| | - Cristian Petcu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM–Bucharest, 060021 Bucharest, Romania; (C.L.N.); (C.P.); (I.F.)
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM–Bucharest, 060021 Bucharest, Romania; (C.L.N.); (C.P.); (I.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Radu Claudiu Fierascu
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 060042 Bucharest, Romania;
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM–Bucharest, 060021 Bucharest, Romania; (C.L.N.); (C.P.); (I.F.)
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9
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Vizitiu DE, Sardarescu DI, Fierascu I, Fierascu RC, Soare LC, Ungureanu C, Buciumeanu EC, Guta IC, Pandelea LM. Grapevine Plants Management Using Natural Extracts and Phytosynthesized Silver Nanoparticles. Materials (Basel) 2022; 15:ma15228188. [PMID: 36431673 PMCID: PMC9697161 DOI: 10.3390/ma15228188] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 05/27/2023]
Abstract
Starting from the well-known antimicrobial properties of silver nanoparticles, the goal of this study is to evaluate the influence of two "green" recipes, namely an alcoholic extract of Dryopteris filix-mas (L.) Schott and a dispersion of silver nanoparticles phytosynthesized using the extract on grapevine pathogens. The influence of some grapevine parameters (pith/wood rapport, soluble sugars, starch, total sugars, total water content, length of young shoots, number of grapes) in field experiments was also studied. The study was conducted on four clones (Feteasca alba 97 St., Feteasca neagra 6 St., Feteasca regala 72 St., and Cabernet Sauvignon 131 St.) located in vegetation pots inside a greenhouse. For the phytosynthesis of the silver nanoparticles (AgNPs) we used a scaled-up technology, allowing us to obtain large quantities of nanoparticles-containing solution. The AgNPs analysis by X-ray diffraction and transmission electron microscopy confirmed the synthesis of spherical and quasi-spherical nanoparticles of 17 nm average diameter and 6.72 nm crystallite size. The field experiments registered different responses of the four clones to the treatment, using both the natural extracts and phytosynthesized nanoparticles solution. Both recipes exhibited a protective effect against the Uncinula necator pathogen. For the treatment using phytosynthesized nanoparticles, significant increases in the pith/wood ratio for white wine clones (Feteasca alba 97 St. and Feteasca regala 72 St.) were observed. The biochemical analyses revealed other significant increases of soluble sugars (red wine clones-Feteasca neagra and Cabernet Sauvignon/second year), starch (Feteasca alba and Cabernet Sauvignon in 2021 for both clones), total sugars (Feteasca alba and Feteasca neagra in 2021 for both clones), and of total water content (Feteasca alba and Feteasca neagra in 2021 for both clones), respectively. The applied treatments also led to an increase of young shoots length and grape numbers for all clones as compared to the control (chemical pesticide), which would suggest a potential biostimulant effect of the recipes.
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Affiliation(s)
- Diana Elena Vizitiu
- The National Institute for Research & Development for Biotechnology in Horticulture Stefanesti, 110134 Stefanesti, Romania
| | - Daniela Ionela Sardarescu
- The National Institute for Research & Development for Biotechnology in Horticulture Stefanesti, 110134 Stefanesti, Romania
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
| | - Irina Fierascu
- The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Radu Claudiu Fierascu
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
- The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Liliana Cristina Soare
- Natural Science Department, Faculty of Sciences, Physical Education and Informatics, University of Pitesti, 110040 Pitesti, Romania
| | - Camelia Ungureanu
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
| | - Elena Cocuta Buciumeanu
- The National Institute for Research & Development for Biotechnology in Horticulture Stefanesti, 110134 Stefanesti, Romania
| | - Ionela Catalina Guta
- The National Institute for Research & Development for Biotechnology in Horticulture Stefanesti, 110134 Stefanesti, Romania
| | - Letitia Mariana Pandelea
- The National Institute for Research & Development for Biotechnology in Horticulture Stefanesti, 110134 Stefanesti, Romania
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10
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Miron A, Sarbu A, Zaharia A, Sandu T, Iovu H, Fierascu RC, Neagu AL, Chiriac AL, Iordache TV. A Top-Down Procedure for Synthesizing Calcium Carbonate-Enriched Chitosan from Shrimp Shell Wastes. Gels 2022; 8:742. [PMID: 36421564 PMCID: PMC9690297 DOI: 10.3390/gels8110742] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 07/29/2023] Open
Abstract
Chitosan is used in medicine, pharmaceuticals, cosmetics, agriculture, water treatment, and food due to its superior biocompatibility and biodegradability. Nevertheless, the complex and relatively expensive extraction costs hamper its exploitation and, implicitly, the recycling of marine waste, the most abundant source of chitosan. In the spirit of developing environmental-friendly and cost-effective procedures, the present study describes one method worth consideration to deliver calcium-carbonate-enriched chitosan from shrimp shell waste, which proposes to maintain the native minerals in the structure of chitin in order to improve the thermal stability and processability of chitosan. Therefore, a synthesis protocol was developed starting from an optimized deacetylation procedure using commercial chitin. The ultimate chitosan product from shrimp shells, containing native calcium carbonate, was further compared to commercial chitosan and chitosan synthesized from commercial chitin. Finally, the collected data during the study pointed out that the prospected method succeeded in delivering calcium-carbonate-enriched chitosan with high deacetylation degree (approximately 75%), low molecular weight (Mn ≈ 10.000 g/ mol), a crystallinity above 59 calculated in the (020) plane, high thermal stability (maximum decomposition temperature over 300 °C), and constant viscosity on a wide range of share rates (quasi-Newtonian behavior), becoming a viable candidate for future chitosan-based materials that can expand the application horizon.
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Affiliation(s)
- Andreea Miron
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
- Advanced Polymer Materials Group, University POLITEHNICA of Bucharest,1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Andrei Sarbu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Anamaria Zaharia
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Teodor Sandu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Horia Iovu
- Advanced Polymer Materials Group, University POLITEHNICA of Bucharest,1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Radu Claudiu Fierascu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Ana-Lorena Neagu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Anita-Laura Chiriac
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
| | - Tanta-Verona Iordache
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania
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11
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Fierascu RC. Incorporation of Nanomaterials in Glass Ionomer Cements-Recent Developments and Future Perspectives: A Narrative Review. Nanomaterials (Basel) 2022; 12:nano12213827. [PMID: 36364603 PMCID: PMC9658828 DOI: 10.3390/nano12213827] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/19/2022] [Accepted: 10/26/2022] [Indexed: 05/29/2023]
Abstract
Glass ionomer cements (GICs), restorative materials with commercial availability spanning over five decades, are widely applied due to their advantages (including bio-compatibility, fluoride release, or excellent bonding properties). However, GICs have shortcomings. Among the disadvantages limiting the application of GICs, the poor mechanical properties are the most significant. In order to enhance the mechanical or antimicrobial properties of these materials, the addition of nanomaterials represents a viable approach. The present paper aims to review the literature on the application of different types of nanomaterials for the enhancement of GICs' mechanical and antimicrobial properties, which could lead to several clinical benefits, including better physical properties and the prevention of tooth decay. After applying the described methodology, representative articles published in the time period 2011-present were selected and included in the final review, covering the modification of GICs with metallic nanoparticles (Cu, Ag), metallic and metalloid oxide nanoparticles (TiO2, ZnO, MgO, Al2O3, ZrO2, SiO2), apatitic nanomaterials, and other nanomaterials or multi-component nanocomposites.
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Affiliation(s)
- Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania;
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
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12
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Fierascu IC, Fierascu I, Baroi AM, Ungureanu C, Ortan A, Avramescu SM, Somoghi R, Fierascu RC, Dinu-Parvu CE. Phytosynthesis of Biological Active Silver Nanoparticles Using Echinacea purpurea L. Extracts. Materials (Basel) 2022; 15:ma15207327. [PMID: 36295404 PMCID: PMC9609611 DOI: 10.3390/ma15207327] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/10/2022] [Accepted: 10/18/2022] [Indexed: 05/27/2023]
Abstract
With their phytoconstituents acting as reducing and capping agents, natural extracts can be considered a viable alternative for the obtaining of metallic nanoparticles. The properties of phytosynthesized nanoparticles are dependent upon size and morphology, which, in turn, can be tailored by adjusting different parameters of the phytosynthesis process (such as the extracts' composition). In the present study, we aimed to evaluate, for the first time in the literature, the influence of the extraction method and extract concentration on the morphological and biological properties (antioxidant and antibacterial activity) of silver nanoparticles phytosynthesized using Echinacea pupurea L. extracts. The obtained results revealed that the use of the low-concentration Echinacea hydro-alcoholic extract obtained via classical temperature extraction led to the development of nanoparticles with the smallest dimensions (less than 10 nm), compared with the use of extracts obtained with higher concentrations and the extract obtained via the microwave method. The developed nanomaterials exhibited enhanced antioxidant effects (determined via the DPPH assay) and antimicrobial properties (against Escherichia coli and Candida albicans), compared with the parent extracts.
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Affiliation(s)
- Ioana Catalina Fierascu
- Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 37 Dionisie Lupu Str., 030167 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Anda Maria Baroi
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Camelia Ungureanu
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
| | - Alina Ortan
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Sorin Marius Avramescu
- Research Center for Environmental Protection and Waste Management (PROTMED), University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania
| | - Raluca Somoghi
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 313 Splaiul Independentei Str., 060042 Bucharest, Romania
| | - Cristina Elena Dinu-Parvu
- Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 37 Dionisie Lupu Str., 030167 Bucharest, Romania
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13
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Fistos T, Fierascu I, Doni M, Chican IE, Fierascu RC. A Short Overview of Recent Developments in the Application of Polymeric Materials for the Conservation of Stone Cultural Heritage Elements. Materials (Basel) 2022; 15:ma15186294. [PMID: 36143606 PMCID: PMC9502206 DOI: 10.3390/ma15186294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 08/28/2022] [Accepted: 09/07/2022] [Indexed: 05/27/2023]
Abstract
Stones are ones of the most ancient natural materials exploited by humans, with different uses, from tools to buildings, that have endured over time in better conditions than other objects belonging to cultural heritage. Given the importance of those silent witnesses of our past, as well as our duty to preserve all parts of cultural heritage for future generations, much effort was put into the development of materials for their consolidation, protection, self-cleaning, or restoration. Protection of ancient stone monuments and objects has gained the interest of researchers in the last decades in the field of conservation of cultural heritage. In this respect, the present paper aims to be a critical discussion regarding potential polymeric materials, which can be used in restorative and conservative approaches for stone materials of cultural heritage importance, against physical degradation phenomena. Recent advances in this area are presented, as well as the current bottle-necks and future development perspectives.
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Affiliation(s)
- Toma Fistos
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 060021 Bucharest, Romania
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 060021 Bucharest, Romania
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Mihaela Doni
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 060021 Bucharest, Romania
| | - Irina Elena Chican
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 060021 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 060021 Bucharest, Romania
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania
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14
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Petrisor G, Ficai D, Motelica L, Trusca RD, Bîrcă AC, Vasile BS, Voicu G, Oprea OC, Semenescu A, Ficai A, Popitiu MI, Fierascu I, Fierascu RC, Radu EL, Matei L, Dragu LD, Pitica IM, Economescu M, Bleotu C. Mesoporous Silica Materials Loaded with Gallic Acid with Antimicrobial Potential. Nanomaterials 2022; 12:nano12101648. [PMID: 35630870 PMCID: PMC9147919 DOI: 10.3390/nano12101648] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 12/15/2022]
Abstract
This paper aimed to develop two types of support materials with a mesoporous structure of mobile crystalline matter (known in the literature as MCM, namely MCM-41 and MCM-48) and to load them with gallic acid. Soft templating methodology was chosen for the preparation of the mesoporous structures—the cylindrical micelles with certain structural characteristics being formed due to the hydrophilic and hydrophobic intermolecular forces which occur between the molecules of the surfactants (cetyltrimethylammonium bromide—CTAB) when a minimal micellar ionic concentration is reached. These mesoporous supports were loaded with gallic acid using three different types of MCM—gallic acid ratios (1:0.41; 1:0.82 and 1:1.21)—and their characterizations by FTIR, SEM, XRD, BET and drug release were performed. It is worth mentioning that the loading was carried out using a vacuum-assisted methodology: the mesoporous materials are firstly kept under vacuum at ~0.1 barr for 30 min followed by the addition of the polyphenol solutions. The concentration of the solutions was adapted such that the final volume covered the wet mesoporous support and—in this case—upon reaching normal atmospheric pressure, the solution was pushed inside the pores, and thus the polyphenols were mainly loaded inside the pores. Based on the SBET data, it can be seen that the specific surface area decreased considerably with the increasing ratio of gallic acid; the specific surface area decreased 3.07 and 4.25 times for MCM-41 and MCM-48, respectively. The sample with the highest polyphenol content was further evaluated from a biological point of view, alone or in association with amoxicillin administration. As expected, the MCM-41 and MCM-48 were not protective against infections—but, due to the loading of the gallic acid, a potentiated inhibition was recorded for the tested gram-negative bacterial strains. Moreover, it is important to mention that these systems can be efficient solutions for the recovery of the gut microbiota after exposure to antibiotics, for instance.
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Affiliation(s)
- Gabriela Petrisor
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; (G.P.); (L.M.); (R.D.T.); (A.C.B.); (B.S.V.); (G.V.); (A.F.)
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Denisa Ficai
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania
- Correspondence:
| | - Ludmila Motelica
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; (G.P.); (L.M.); (R.D.T.); (A.C.B.); (B.S.V.); (G.V.); (A.F.)
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Roxana Doina Trusca
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; (G.P.); (L.M.); (R.D.T.); (A.C.B.); (B.S.V.); (G.V.); (A.F.)
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Alexandra Cătălina Bîrcă
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; (G.P.); (L.M.); (R.D.T.); (A.C.B.); (B.S.V.); (G.V.); (A.F.)
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Bogdan Stefan Vasile
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; (G.P.); (L.M.); (R.D.T.); (A.C.B.); (B.S.V.); (G.V.); (A.F.)
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Georgeta Voicu
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; (G.P.); (L.M.); (R.D.T.); (A.C.B.); (B.S.V.); (G.V.); (A.F.)
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Ovidiu Cristian Oprea
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania
| | - Augustin Semenescu
- Department Engineering and Management for Transports, University POLITEHNICA of Bucharest, 060042 Bucharest, Romania;
- Academy of Romanian Scientists, Ilfov Street 3, 050044 Bucharest, Romania
| | - Anton Ficai
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; (G.P.); (L.M.); (R.D.T.); (A.C.B.); (B.S.V.); (G.V.); (A.F.)
- National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania;
- National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov Street 3, 050044 Bucharest, Romania
| | - Mircea Ionut Popitiu
- Department of Vascular Surgery and Reconstructive Microsurgery, Victor Babes University of Medicine and Pharmacy, Timisoara, Piata Eftimie Murgu, Nr. 2, 300041 Timisoara, Romania;
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei 202, 060021 Bucharest, Romania; (I.F.); (R.C.F.)
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei 202, 060021 Bucharest, Romania; (I.F.); (R.C.F.)
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Elena Lacramioara Radu
- Stefan S. Nicolau Institute of Virology, Mihai Bravu 285, 030304 Bucharest, Romania; (E.L.R.); (L.M.); (L.D.D.); (I.M.P.); (M.E.); (C.B.)
| | - Lilia Matei
- Stefan S. Nicolau Institute of Virology, Mihai Bravu 285, 030304 Bucharest, Romania; (E.L.R.); (L.M.); (L.D.D.); (I.M.P.); (M.E.); (C.B.)
| | - Laura Denisa Dragu
- Stefan S. Nicolau Institute of Virology, Mihai Bravu 285, 030304 Bucharest, Romania; (E.L.R.); (L.M.); (L.D.D.); (I.M.P.); (M.E.); (C.B.)
| | - Ioana Madalina Pitica
- Stefan S. Nicolau Institute of Virology, Mihai Bravu 285, 030304 Bucharest, Romania; (E.L.R.); (L.M.); (L.D.D.); (I.M.P.); (M.E.); (C.B.)
| | - Mihaela Economescu
- Stefan S. Nicolau Institute of Virology, Mihai Bravu 285, 030304 Bucharest, Romania; (E.L.R.); (L.M.); (L.D.D.); (I.M.P.); (M.E.); (C.B.)
| | - Coralia Bleotu
- Stefan S. Nicolau Institute of Virology, Mihai Bravu 285, 030304 Bucharest, Romania; (E.L.R.); (L.M.); (L.D.D.); (I.M.P.); (M.E.); (C.B.)
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Baroi AM, Popitiu M, Fierascu I, Sărdărescu ID, Fierascu RC. Grapevine Wastes: A Rich Source of Antioxidants and Other Biologically Active Compounds. Antioxidants (Basel) 2022; 11:antiox11020393. [PMID: 35204275 PMCID: PMC8869687 DOI: 10.3390/antiox11020393] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 01/28/2022] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 01/27/2023] Open
Abstract
Wine production is one of the most critical agro-industrial sectors worldwide, generating large amounts of waste with negative environmental impacts, but also with high economic value and several potential applications. From wine shoots to grape pomace or seeds, all of the wastes are rich sources of bioactive compounds with beneficial effects for human health, with these compounds being raw materials for other industries such as the pharmaceutical, cosmetic or food industries. Furthermore, these compounds present health benefits such as being antioxidants, supporting the immune system, anti-tumoral, or preventing cardiovascular and neural diseases. The present work aims to be a critical discussion of the extraction methods used for bioactive compounds from grapevine waste and their beneficial effects on human health.
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Affiliation(s)
- Anda Maria Baroi
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (A.M.B.); (R.C.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Mircea Popitiu
- Department of Vascular Surgery and Reconstructive Microsurgery, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Correspondence: (M.P.); (I.F.)
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (A.M.B.); (R.C.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
- Correspondence: (M.P.); (I.F.)
| | - Ionela-Daniela Sărdărescu
- National Research and Development Institute for Biotechnology in Horticulture, 117715 Stefanesti, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (A.M.B.); (R.C.F.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
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16
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Fistos T, Fierascu I, Fierascu RC. Recent Developments in the Application of Inorganic Nanomaterials and Nanosystems for the Protection of Cultural Heritage Organic Artifacts. Nanomaterials (Basel) 2022; 12:nano12020207. [PMID: 35055226 PMCID: PMC8778391 DOI: 10.3390/nano12020207] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 02/01/2023]
Abstract
Cultural heritage (CH) represents human identity and evidence of the existence and activities that people have left over time. In response to the action of aggressive degrading factors, different materials have been developed and used to protect cultural heritage artifacts. The discovery of optimal materials for this purpose also raises several problems, mainly related to their compatibility with the support material, the most important aspect being that they must preserve their aesthetic characteristics. In this context, the present review paper aims to provide a critical discussion about the possibilities of using different inorganic nanomaterials and recipes for the conservation of cultural heritage objects of organic nature (such as paper, wood, and other support materials). In addition, also are covered different aspect concerning protection mechanisms and application methods as well as future perspectives in this area.
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Affiliation(s)
- Toma Fistos
- Emerging Nanotechnologies Group, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Irina Fierascu
- Emerging Nanotechnologies Group, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
- Correspondence: (I.F.); (R.C.F.)
| | - Radu Claudiu Fierascu
- Emerging Nanotechnologies Group, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania
- Correspondence: (I.F.); (R.C.F.)
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Brazdis RI, Fierascu I, Avramescu SM, Fierascu RC. Recent Progress in the Application of Hydroxyapatite for the Adsorption of Heavy Metals from Water Matrices. Materials (Basel) 2021; 14:6898. [PMID: 34832297 PMCID: PMC8618790 DOI: 10.3390/ma14226898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 10/22/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 12/27/2022]
Abstract
Wastewater treatment remains a critical issue globally, despite various technological advancements and breakthroughs. The study of different materials and technologies gained new valences in the last years, in order to obtain cheap and efficient processes, to obtain a cleaner environment for future generations. In this context, the present review paper presents the new achievements in the materials domain with highlights on apatitic materials used for decontamination of water loaded with heavy metals. The main goal of this review is to present the adsorptive removal of heavy metals using hydroxyapatite-based adsorbents, offering a general overview regarding the recent progress in this particular area. Developing the current review, an attempt has been made to give appropriate recognition to the most recent data regarding the synthesis methods and targeted pollutants, including important information regarding the synthesis methods and precursors, morphological characteristics of the adsorbent materials and effectiveness of processes.
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Affiliation(s)
- Roxana Ioana Brazdis
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Sorin Marius Avramescu
- Research Center for Environmental Protection and Waste Management, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania;
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Soseaua Panduri, 050663 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
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18
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Modrogan C, Cǎprǎrescu S, Dǎncilǎ AM, Orbuleț OD, Grumezescu AM, Purcar V, Radițoiu V, Fierascu RC. Modified Composite Based on Magnetite and Polyvinyl Alcohol: Synthesis, Characterization, and Degradation Studies of the Methyl Orange Dye from Synthetic Wastewater. Polymers (Basel) 2021; 13:polym13223911. [PMID: 34833210 PMCID: PMC8625922 DOI: 10.3390/polym13223911] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 10/23/2021] [Revised: 11/06/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022] Open
Abstract
The goal of the present paper was to synthesize, characterize, and evaluate the performance of the modified composite based on magnetite (Fe3O4) and polyvinyl alcohol (PVA). The obtained composite was used to degrade Methyl Orange dye from synthetic wastewater by a laboratory photocatalytic reactor. Various parameters of the photodegradation process were tested: composite dosage, amount of hydrogen peroxide (H2O2), and pH. The composite was characterized by Fourier Transform Infrared (FTIR) Spectroscopy, X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM). The degradation experiments indicated that the complete dye decolorization depended on the amount of H2O2. In addition, the H2O2 could accelerate Methyl Orange degradation to more highly oxidized intermediates in the presence of UV light (99.35%). The results suggested that the obtained modified composite could be used to treat wastewater containing various types of dyes.
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Affiliation(s)
- Cristina Modrogan
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Ghe. Polizu Street No 1-7, 011061 Bucharest, Romania; (C.M.); (A.M.D.); (O.D.O.)
| | - Simona Cǎprǎrescu
- Inorganic Chemistry, Physical Chemistry and Electrochemistry Department, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Ghe. Polizu Street No 1-7, 011061 Bucharest, Romania
- Correspondence:
| | - Annette Madelene Dǎncilǎ
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Ghe. Polizu Street No 1-7, 011061 Bucharest, Romania; (C.M.); (A.M.D.); (O.D.O.)
| | - Oanamari Daniela Orbuleț
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Ghe. Polizu Street No 1-7, 011061 Bucharest, Romania; (C.M.); (A.M.D.); (O.D.O.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Ghe. Polizu Street No 1-7, 011061 Bucharest, Romania; (A.M.G.); (R.C.F.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov No. 3, 50044 Bucharest, Romania
| | - Violeta Purcar
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei, No. 202, 060021 Bucharest, Romania; (V.P.); (V.R.)
| | - Valentin Radițoiu
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei, No. 202, 060021 Bucharest, Romania; (V.P.); (V.R.)
| | - Radu Claudiu Fierascu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Ghe. Polizu Street No 1-7, 011061 Bucharest, Romania; (A.M.G.); (R.C.F.)
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei, No. 202, 060021 Bucharest, Romania; (V.P.); (V.R.)
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Fierascu I, Fierascu RC, Fistos T, Motelica L, Oprea O, Nicoara A, Ficai A, Stirban A, Zgarciu MS. Non-invasive microanalysis of a written page from the Romanian heritage “The Homiliary of Varlaam (Cazania lui Varlaam)”. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106345] [Citation(s) in RCA: 1] [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: 11/24/2022]
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Fierascu RC, Fierascu IC, Dinu-Pirvu CE, Fierascu I, Paunescu A. The application of essential oils as a next-generation of pesticides: recent developments and future perspectives. ACTA ACUST UNITED AC 2021; 75:183-204. [PMID: 31785198 DOI: 10.1515/znc-2019-0160] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [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: 08/26/2019] [Accepted: 11/05/2019] [Indexed: 01/08/2023]
Abstract
The overuse of synthetic pesticide, a consequence of the rush to increase crop production, led to tremendous adverse effects, as they constitute a major pollutant for both soils and water, with a high toxicity towards humans and animals and, at the same time, led to development of pest resistance. In the last period, the researches were directed towards finding new solutions with a lower toxicity, less damaging behaviour towards the environment, and a better specificity of action. In this context, the use of essential oils, a complex and unique mixture of compounds, can be considered for the next-generation pesticides. This review aims to present the main applications of the essential oils as insecticides, herbicides, acaricides, and nematicides, as they emerged from the scientific literature published in the last 5 years (2015 to present). From the identified articles within the time period, only those dealing with essential oils obtained by the authors (not commercially available) were selected to be inserted in the review, characterized using established analytical techniques and employed for the envisaged applications. The review is concluded with a chapter containing the main conclusions of the literature study and the future perspectives, regarding the application of essential oils as next-generation pesticides.
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Affiliation(s)
- Radu Claudiu Fierascu
- National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania.,University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăști Blvd., 011464 Bucharest, Romania
| | - Ioana Catalina Fierascu
- University of Medicine and Pharmacy "Carol Davila", 37 Dionisie Lupu Str., 030167 Bucharest, Romania.,Zentiva Romania S.A., 50 Theodor Pallady Blvd., 032266 Bucharest, Romania
| | - Cristina Elena Dinu-Pirvu
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăști Blvd., 011464 Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", 37 Dionisie Lupu Str., 030167 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania.,University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăști Blvd., 011464 Bucharest, Romania
| | - Alina Paunescu
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu din Vale Street, 110040 Pitesti, Romania
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Fierascu I, Fierascu RC, Ungureanu C, Draghiceanu OA, Soare LC. Application of Polypodiopsida Class in Nanotechnology-Potential towards Development of More Effective Bioactive Solutions. Antioxidants (Basel) 2021; 10:748. [PMID: 34066800 PMCID: PMC8151343 DOI: 10.3390/antiox10050748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 04/15/2021] [Revised: 04/29/2021] [Accepted: 05/05/2021] [Indexed: 12/23/2022] Open
Abstract
The area of phytosynthesized nanomaterials is rapidly developing, with numerous studies being published yearly. The use of plant extracts is an alternative method to reduce the toxic potential of the nanomaterials and the interest in obtaining phytosynthesized nanoparticles is usually directed towards accessible and common plant species, ferns not being explored to their real potential in this field. The developed nanoparticles could benefit from their superior antimicrobial and antioxidant properties (compared with the nanoparticles obtained by other routes), thus proposing an important alternative against health care-associated and drug-resistant infections, as well as in other types of applications. The present review aims to summarize the explored application of ferns in nanotechnology and related areas, as well as the current bottlenecks and future perspectives, as emerging from the literature data.
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Affiliation(s)
- Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 060021 Bucharest, Romania;
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 060021 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
| | - Camelia Ungureanu
- Department of General Chemistry, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
| | - Oana Alexandra Draghiceanu
- Department of Natural Sciences, University of Pitesti, 1 Targu din Vale Str., 110040 Pitesti, Romania; (O.A.D.); (L.C.S.)
| | - Liliana Cristina Soare
- Department of Natural Sciences, University of Pitesti, 1 Targu din Vale Str., 110040 Pitesti, Romania; (O.A.D.); (L.C.S.)
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Ungureanu C, Fierascu I, Fierascu RC, Costea T, Avramescu SM, Călinescu MF, Somoghi R, Pirvu C. In Vitro and In Vivo Evaluation of Silver Nanoparticles Phytosynthesized Using Raphanus sativus L. Waste Extracts. Materials (Basel) 2021; 14:ma14081845. [PMID: 33917755 PMCID: PMC8068147 DOI: 10.3390/ma14081845] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 02/08/2023]
Abstract
The aim of the current paper is the development of phytosynthesized silver nanoparticles mediated by Raphanus sativus L. extracts obtained through two extraction methods (temperature and microwave) and to test their potential application for controlling apple crops pathogens. The phytosynthesized materials were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. All the materials were evaluated in terms of antioxidant and in vitro antimicrobial activity (against bacteria, molds, and yeast: Escherichia coli ATCC 8738, Staphylococcus aureus ATTC 25923, Pseudomonas aeruginosa ATCC 9027, Salmonella typhimurium ATCC 14028, Candida albicans ATCC 10231, Venturia inaequalis, Podosphaera leucotricha, Fusarium oxysporum ATCC 48112, Penicillium hirsutum ATCC 52323, and Aspergillus niger ATCC 15475). Considering the results obtained in the in vitro assays, formulations based on nanoparticles phytosynthesized using Raphanus sativus L. waste extracts (RS1N) were evaluated as potential antifungal agents for horticultural crops protection, against Venturia inaequalis and Podosphaera leucotricha through in vivo assays. For the DPPH assay, the inhibition (%) varied between 37.06% (for RS1N at 0.8 mg/mL concentration) and 83.72% (for RS1N at 7.2 mg/mL concentration) compared to 19.97% (for RS2N at 0.8 mg/mL) and only 28.91% (for RS2N at 7.2 mg/mL). Similar results were obtained for RS3N (85.42% inhibition at 7.2 mg/mL) compared with RS4N (21.76% inhibition at 7.2 mg/mL). Regarding the ABTS assay, the highest scavenger activity values were recorded for samples RS1N (91.43% at 1.6 mg/mL) and RS3N (96.62% at 1.6 mg/mL).
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Affiliation(s)
- Camelia Ungureanu
- Department of General Chemistry, University “Politehnica” of Bucharest, 011061 Bucharest, Romania;
- Correspondence: (C.U.); (R.C.F.)
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (I.F.); (R.S.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (I.F.); (R.S.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
- Correspondence: (C.U.); (R.C.F.)
| | - Teodora Costea
- Phytotherapy Department, Faculty of Pharmacy, Pharmacognosy, Phytochemistry, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania;
| | - Sorin Marius Avramescu
- Research Center for Environmental Protection and Waste Management, University of Bucharest, 050107 Bucharest, Romania;
| | | | - Raluca Somoghi
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (I.F.); (R.S.)
| | - Cristian Pirvu
- Department of General Chemistry, University “Politehnica” of Bucharest, 011061 Bucharest, Romania;
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Fierascu I, Ditu LM, Sutan AN, Drăghiceanu OA, Fierascu RC, Avramescu SM, Lungulescu EM, Nicula N, Soare LC. Influence of gamma irradiation on the biological properties of Asplenium scolopendrium L. hydroalcoholic extracts. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2020.109175] [Citation(s) in RCA: 4] [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] [Indexed: 12/25/2022]
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24
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Fierascu RC, Fierascu I, Baroi AM, Ortan A. Selected Aspects Related to Medicinal and Aromatic Plants as Alternative Sources of Bioactive Compounds. Int J Mol Sci 2021; 22:1521. [PMID: 33546333 PMCID: PMC7913593 DOI: 10.3390/ijms22041521] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/30/2021] [Accepted: 01/31/2021] [Indexed: 01/03/2023] Open
Abstract
Natural compounds obtained from different medicinal and aromatic plants have gained respect as alternative treatments to synthetic drugs, as well as raw materials for different applications (cosmetic, food and feed industries, environment protection, and many others). Based on a literature survey on dedicated databases, the aim of the present work is to be a critical discussion of aspects regarding classical extraction versus modern extraction techniques; possibilities to scale up (advantages and disadvantages of different extraction methods usually applied and the influence of extraction parameters); and different medicinal and aromatic plants' different applications (medical and industrial applications, as well as the potential use in nanotechnology). As nowadays, research studies are directed toward the development of modern, innovative applications of the medicinal and aromatic plants, aspects regarding future perspectives are also discussed.
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Affiliation(s)
- Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.C.F.); (A.M.B.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.C.F.); (A.M.B.)
- Veterinary Medicine of Bucharest, University of Agronomic Sciences, 011464 Bucharest, Romania;
| | - Anda Maria Baroi
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.C.F.); (A.M.B.)
- Veterinary Medicine of Bucharest, University of Agronomic Sciences, 011464 Bucharest, Romania;
| | - Alina Ortan
- Veterinary Medicine of Bucharest, University of Agronomic Sciences, 011464 Bucharest, Romania;
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Fierascu RC, Fierascu I, Ortan A, Paunescu A. Plantago media L.-Explored and Potential Applications of an Underutilized Plant. Plants (Basel) 2021; 10:265. [PMID: 33573139 PMCID: PMC7912141 DOI: 10.3390/plants10020265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 01/24/2023]
Abstract
The search of valuable natural compounds should be directed towards alternative vegetal resources, and to the re-discovery of underutilized plants. Belonging to the Plantaginaceae family, the hoary plantain (Plantago media L.) represents one of the lesser studied species from the Plantago genus. The literature study revealed the under-utilization of the hoary plantain, a surprising aspect, considering its widespread. If the composition of Plantago media L. is rather well established, its applications are not nearly studied as for other Plantago species. The goal of the present paper is to summarize the findings regarding the applications of P. media, and, having as starting point the applications of related species, to propose new emerging areas of research, such as the biomedical applications validation through in vivo assays, and the evaluation of its potential towards industrial applications (i.e., development of food or personal care products), pisciculture or zootechny, phytoremediation and other environmental protection applications, or in the nanotechnology area (materials phytosynthesis). The present work constitutes not only a brief presentation of this plant's present and potential applications, but also an invitation to research groups world-wide to explore the available vegetal resources.
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Affiliation(s)
- Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania;
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania;
| | - Alina Ortan
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania;
| | - Alina Paunescu
- Department of Natural Sciences, University of Pitesti, 1 Targu din Vale Str., Pitesti, 110040 Arges, Romania;
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Fierascu I, Dima SO, Avramescu SM, Caloian F, Fierascu RC. Facile Removal of Pesticides from Aqueous Solutions Using Magnetic Nanocomposites. II. Adsorption experiments and kinetic study. Rev Chim 2020. [DOI: 10.37358/rc.20.1.7834] [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
Using previously presented magnetic inorganic/organic magnetic nanocomposites, the adsorption of two known commercial-available pesticides (active ingredients deltamethrin and thiamethoxam, respectively) was achieved. The differences in adsorption observed can be explained by the reduced affinity of the nitro group in the ionized form from thiamethoxam towards the carboxyl groups from chitosan. From the kinetics studies it was determined that in case of thiamethoxam adsorption process is exothermic in nature, while in the case of deltamethrin the process is endothermic. The Sips isotherm was more suitable to describe the adsorption of pesticides on prepared adsorbents. The maximum adsorption capacity determined for the developed material was 247.12 mg/g (for deltamethrin) and 53.29 mg/g (for thiamethoxam).
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Fierascu I, Fierascu IC, Brazdis RI, Baroi AM, Fistos T, Fierascu RC. Phytosynthesized Metallic Nanoparticles-between Nanomedicine and Toxicology. A Brief Review of 2019's Findings. Materials (Basel) 2020; 13:E574. [PMID: 31991830 PMCID: PMC7040630 DOI: 10.3390/ma13030574] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 01/19/2020] [Accepted: 01/22/2020] [Indexed: 02/07/2023]
Abstract
Phytosynthesized nanoparticles represent a continuously increasing field of research, with numerous studies published each year. However, with the emerging interest in this area, the quality of the published works is also continuously increasing, switching from routine antioxidant or antimicrobial studies on trivial microbial lines to antibiotic-resistant strains or antitumoral studies. However, this increasing interest has not been not reflected in the studies regarding the toxicological effects of nanoparticles (NPs); this should be a subject of greatest interest, as the increasing administration of NPs in general (and phytosynthesized NPs in particular) could lead to their accumulation in the environment (soil, water and living organisms). The present review aims to present the most recent findings in the application of phytosynthesized NPs as antimicrobial and antitumoral agents, as well as the results regarding their toxicological potential.
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Affiliation(s)
- Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, Emerging Nanotechnologies Group, 202 Spl. Independentei, 060021 Bucharest, Romania; (I.F.); (R.I.B.); (A.M.B.); (T.F.)
| | - Ioana Catalina Fierascu
- University of Medicine and Pharmacy “Carol Davila”, 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Zentiva Romania S.A., 50 Theodor Pallady Blvd., 032266 Bucharest, Romania
| | - Roxana Ioana Brazdis
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, Emerging Nanotechnologies Group, 202 Spl. Independentei, 060021 Bucharest, Romania; (I.F.); (R.I.B.); (A.M.B.); (T.F.)
| | - Anda Maria Baroi
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, Emerging Nanotechnologies Group, 202 Spl. Independentei, 060021 Bucharest, Romania; (I.F.); (R.I.B.); (A.M.B.); (T.F.)
| | - Toma Fistos
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, Emerging Nanotechnologies Group, 202 Spl. Independentei, 060021 Bucharest, Romania; (I.F.); (R.I.B.); (A.M.B.); (T.F.)
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, Emerging Nanotechnologies Group, 202 Spl. Independentei, 060021 Bucharest, Romania; (I.F.); (R.I.B.); (A.M.B.); (T.F.)
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Fierascu RC, Fierascu I, Ortan A, Georgiev MI, Sieniawska E. Innovative Approaches for Recovery of Phytoconstituents from Medicinal/Aromatic Plants and Biotechnological Production. Molecules 2020; 25:E309. [PMID: 31940923 PMCID: PMC7024203 DOI: 10.3390/molecules25020309] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/09/2020] [Accepted: 01/11/2020] [Indexed: 02/06/2023] Open
Abstract
Continuously growing demand for plant derived therapeutic molecules obtained in a sustainable and eco-friendly manner favors biotechnological production and development of innovative extraction techniques to obtain phytoconstituents. What is more, improving and optimization of alternative techniques for the isolation of high value natural compounds are issues having both social and economic importance. In this critical review, the aspects regarding plant biotechnology and green downstream processing, leading to the production and extraction of increased levels of fine chemicals from both plant cell, tissue, and organ culture or fresh plant materials and the remaining by-products, are discussed.
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Affiliation(s)
- Radu Claudiu Fierascu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania; (R.C.F.); (A.O.); (M.I.G.)
- National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Irina Fierascu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania; (R.C.F.); (A.O.); (M.I.G.)
- National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Alina Ortan
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania; (R.C.F.); (A.O.); (M.I.G.)
| | - Milen I. Georgiev
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania; (R.C.F.); (A.O.); (M.I.G.)
- Group of Plant Cell Biotechnology and Metabolomics, Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000 Plovdiv, Bulgaria
| | - Elwira Sieniawska
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki, 20-093 Lublin, Poland;
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Fierascu I, Fierascu RC, Stirban A, Panaitescu DM, Nicolae CA, Raditoiu V, Zgarciu MS, Leahu AC. Chemical and mineral characterization of Romanian book paper materials (XVII–XIXth century). Microchem J 2020. [DOI: 10.1016/j.microc.2019.104307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Fierascu I, Somoghi R, Nicolae CA, Stanica N, Fierascu RC. Facile Removal of Pesticides from Aqueous Solutions Using Magnetic Nanocomposites I. Synthesis and characterization of the adsorbent material. Rev Chim 2019. [DOI: 10.37358/rc.19.11.7675] [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
An inorganic/organic magnetic nanocomposite was synthesized and analytically characterized using X-ray fluorescence, X-ray diffraction, transmission electron microscopy and thermal analysis. The evaluation of the magnetic properties revealed that both the magnetite and the magnetite/chitosan nanocomposite are superparamagnetic with a paramagnetic component, having the saturation magnetization values of 48.04 emu/g, and 41.3 emu/g, respectively. The synthesized material is indented for the adsorption of two known commercial-available pesticides (active ingredients deltamethrin and thiamethoxam, respectively) from aqueous solutions.
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Ungureanu C, Calinescu M, Ferdes M, Soare L, Vizitiu D, Fierascu I, Fierascu RC, Raileanu S. Isolation and Cultivation of Some Pathogen Fungi from Apple and Grapevines Grown in Arges County. Rev Chim 2019. [DOI: 10.37358/rc.19.11.7671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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
The development of apple and grapevines varieties displaying durable resistance against some disease is one of the major aims in breeding programmes worldwide. In order to test some bio fungicides, the isolation of some pathogens for apple (Podosphaera leucotricha, Venturia inaequalis) and grapevine (Plasmopara viticola) was carried out.
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Fierascu RC, Fierascu I, Avramescu SM, Sieniawska E. Recovery of Natural Antioxidants from Agro-Industrial Side Streams through Advanced Extraction Techniques. Molecules 2019; 24:E4212. [PMID: 31757027 PMCID: PMC6930540 DOI: 10.3390/molecules24234212] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/15/2019] [Accepted: 11/18/2019] [Indexed: 01/18/2023] Open
Abstract
Large amounts of agro-industrial waste are being generated each year, leading to pollution and economic loss. At the same time, these side streams are rich source of active compounds including antioxidants. Recovered compounds can be re-utilized as food additives, functional foods, nutra-/pharmaceuticals, cosmeceuticals, beauty products, and bio-packaging. Advanced extraction techniques are promising tools to recover target compounds such as antioxidants from agro-industrial side streams. Due to the disadvantages of classical extraction techniques (such as large amounts of solvents, increased time of extraction, large amounts of remaining waste after the extraction procedure, etc.), and advanced techniques emerged, in order to obtain more efficient and sustainable processes. In this review paper aspects regarding different modern extraction techniques related to recovery of antioxidant compounds from wastes generated in different industries and their applications are briefly discussed.
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Affiliation(s)
- Radu Claudiu Fierascu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania; (R.C.F.); (S.M.A.)
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Irina Fierascu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania; (R.C.F.); (S.M.A.)
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Sorin Marius Avramescu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania; (R.C.F.); (S.M.A.)
- Research Center for Environmental Protection and Waste Management, University of Bucharest, 36-46 Mihail Kogalniceanu Blvd., 050107 Bucharest, Romania
| | - Elwira Sieniawska
- Department of Pharmacognosy, Medical University of Lublin, 1 Chodzki, 20-093 Lublin, Poland
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Caprarescu S, Modrogan C, Purcar V, Dancila AM, Fierascu RC. Study of Corrosion Efficiency of Mild Steel Using Commercial Liquid Additives for Fish in Natural Water. Rev Chim 2019. [DOI: 10.37358/rc.19.4.7079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 work is devoted to examine the effectiveness of the different commercial liquid additives for fish (sweet corn and molasses) on corrosion of mild steel in natural water by different methods (gravimetric and potentiostatic polarization) at room temperature. The corrosion tests were employed to evaluate corrosion rate (CR) and inhibition efficiency (IE %). The maximum inhibition efficiency was obtained for the inhibitor type molasses of 90.00% by gravimetric method for a period of 3 hours and over 31 % by potentiostatic polarization method. It was found that the commercial liquid additives acted as a good inhibitors for the tested environment. Furthermore, the corroded metal was observed by metallographic microscope.
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Sutan NA, Vilcoci DS, Fierascu I, Neblea AM, Sutan C, Ducu C, Soare LC, Negrea D, Avramescu SM, Fierascu RC. Influence of the Phytosynthesis of Noble Metal Nanoparticles on the Cytotoxic and Genotoxic Effects of Aconitum toxicum Reichenb. Leaves Alcoholic Extract. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01524-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Fierascu RC, Ortan A, Fierascu IC, Fierascu I. In vitro and in vivo evaluation of antioxidant properties of wild-growing plants. A short review. Curr Opin Food Sci 2018. [DOI: 10.1016/j.cofs.2018.08.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Fierascu I, Raditoiu V, Nicolae CA, Raditoiu A, Somoghi R, Raduly M, Trica B, Fierascu RC, Ditu LM. Analytical Characterization and Potential Antimicrobial and Photocatalytic Applications of Metal-Substituted Hydroxyapatite Materials. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1528269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Valentin Raditoiu
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Cristian Andi Nicolae
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Alina Raditoiu
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Raluca Somoghi
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Monica Raduly
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Bogdan Trica
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry – ICECHIM Bucharest, Bucharest 060021, Romania
| | - Lia Mara Ditu
- Microbiology Department, University of Bucharest, Bucharest 060101, Romania
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Sutan NA, Manolescu DS, Fierascu I, Neblea AM, Sutan C, Ducu C, Soare LC, Negrea D, Avramescu SM, Fierascu RC. Phytosynthesis of gold and silver nanoparticles enhance in vitro antioxidant and mitostimulatory activity of Aconitum toxicum Reichenb. rhizomes alcoholic extracts. Mater Sci Eng C Mater Biol Appl 2018; 93:746-758. [PMID: 30274108 DOI: 10.1016/j.msec.2018.08.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 07/17/2018] [Accepted: 08/19/2018] [Indexed: 01/08/2023]
Abstract
Extracts obtained from different plant species proved to be a valuable tool in various biomedical applications. In the same time, the phytosynthesis of noble metal nanoparticles represents an already well-established route for obtaining nanoparticles with biological activity. The present paper studies the antioxidant activity and the cytogenetic effects of the alcoholic extracts from rhizomes of Aconitum toxicum Rchb., before and after the phytosynthesis of gold and silver nanoparticles, on the meristematic root cells of Allium cepa L., and on the general mitotic index and the progression rate through the mitotic phases, respectively, as well as on the genetic material organized in chromosomes. The extracts were characterized in terms of total polyphenolics content (1.49% and, respectively, 2.29%) and aconitine content (by HPLC - 4.891 mg/L and, respectively, 18.211 mg/L), while the phytosynthesis of metallic nanoparticles was monitored by UV-Vis spectrometry, X-ray diffraction, X-ray fluorescence and electron microscopy. Both the extracts and the obtained nanoparticles were evaluated for antioxidant potential (the antioxidant activity ranging between 78% and 84.32%) and cytogenetic effects. The obtained results prove the phytosynthesis of AgNPs and AuNPs with dimensions ranging from 9 nm to 15 nm for AuNPs, respectively from 53 nm to 67 nm for AgNPs. The extracts obtained from rhizomes of A. toxicum Rchb. induced mitotic stress, as well as a series of nuclear and mitotic aberrations. The biosynthesis of AgNPs and AuNPs intensified the antioxidant and mitostimulatory activity of the extracts.
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Affiliation(s)
- Nicoleta Anca Sutan
- University of Piteşti, Faculty of Science, Physical Education and Informatics, Department of Natural Sciences, 1 Targu din Vale Str., 110040 Pitesti, Arges, Romania
| | - Denisa Stefania Manolescu
- University of Piteşti, Faculty of Science, Physical Education and Informatics, Department of Natural Sciences, 1 Targu din Vale Str., 110040 Pitesti, Arges, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry - ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Angela Monica Neblea
- University of Piteşti, Faculty of Science, Physical Education and Informatics, Department of Natural Sciences, 1 Targu din Vale Str., 110040 Pitesti, Arges, Romania
| | - Claudiu Sutan
- University of Piteşti, Faculty of Science, Physical Education and Informatics, Department of Natural Sciences, 1 Targu din Vale Str., 110040 Pitesti, Arges, Romania
| | - Catalin Ducu
- University of Pitesti, Regional Research & Development Center for Innovative Materials, Products and Processes from Automotive Industry, 11 Doaga Str., 110440 Pitesti, Arges, Romania
| | - Liliana Cristina Soare
- University of Piteşti, Faculty of Science, Physical Education and Informatics, Department of Natural Sciences, 1 Targu din Vale Str., 110040 Pitesti, Arges, Romania
| | - Denis Negrea
- University of Pitesti, Regional Research & Development Center for Innovative Materials, Products and Processes from Automotive Industry, 11 Doaga Str., 110440 Pitesti, Arges, Romania
| | - Sorin Marius Avramescu
- University of Agronomic Sciences and Veterinary Medicine Bucharest, 59 Mărăşti Bvd, 011464 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry - ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania.
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Paunescu A, Soare LC, Fierascu RC, Fierascu I, Ponepal MC. The Influence of Six Pesticides on Physiological Indices of Pelophylax Ridibundus (Pallas, 1771). Bull Environ Contam Toxicol 2018; 100:376-383. [PMID: 29368302 DOI: 10.1007/s00128-018-2277-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/13/2017] [Accepted: 01/13/2018] [Indexed: 06/07/2023]
Abstract
The objective of the study is to screen for morphological, biochemical and histological changes induced by six widely used pesticides (Reldan 40EC, Actara 25WG, Tilt 250EC, Champion 50WG, Fusilade Forte, Dual Gold 960EC) in the amphibian species Pelophylax ridibundus (Pallas, 1771). Highly degenerative changes were observed in animals cultured at 22-24°C, compared to those cultured at 4-6°C. The hepatosomatic index increased upon exposure to almost all of the pesticides, the erythrocyte number decreased upon exposure to all pesticides except Reldan 40EC, while leucopenia was observed only for Reldan 40EC and Actara 25WG. Hyperglycemia was observed upon administration of pesticides (except Champion 50WG and Fusilade Forte, for which hypoglycemia is registered), while a decrease in cholesterol levels was induced by nearly all pesticides. Triglycerides varied only slightly. The results suggest that chronic pesticides exposure can lead to alteration of various indices, as well as to hepatic lesions in amphibians.
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Affiliation(s)
- Alina Paunescu
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu din Vale Street, 110040, Pitesti, Romania
| | - Liliana Cristina Soare
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu din Vale Street, 110040, Pitesti, Romania
| | - Radu Claudiu Fierascu
- National Research and Development Institute for Chemistry and Petrochemistry - ICECHIM, 202 Spl. Independentei, Sect. 6, 060021, Bucharest, Romania
| | - Irina Fierascu
- National Research and Development Institute for Chemistry and Petrochemistry - ICECHIM, 202 Spl. Independentei, Sect. 6, 060021, Bucharest, Romania.
| | - Maria Cristina Ponepal
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu din Vale Street, 110040, Pitesti, Romania
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Fierascu I, Ungureanu C, Avramescu SM, Cimpeanu C, Georgescu MI, Fierascu RC, Ortan A, Sutan AN, Anuta V, Zanfirescu A, Dinu-Pirvu CE, Velescu BS. Genoprotective, antioxidant, antifungal and anti-inflammatory evaluation of hydroalcoholic extract of wild-growing Juniperus communis L. (Cupressaceae) native to Romanian southern sub-Carpathian hills. BMC Complement Altern Med 2018; 18:3. [PMID: 29301523 PMCID: PMC5755145 DOI: 10.1186/s12906-017-2066-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 07/11/2017] [Accepted: 12/18/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Juniperus communis L. represents a multi-purpose crop used in the pharmaceutical, food, and cosmetic industry. Several studies present the possible medicinal properties of different Juniperus taxa native to specific geographical area. The present study aims to evaluate the genoprotective, antioxidant, antifungal and anti-inflammatory potential of hydroalcoholic extract of wild-growing Juniperus communis L. (Cupressaceae) native to Romanian southern sub-Carpathian hills. METHODS The prepared hydroethanolic extract of Juniperus communis L. was characterized by GC-MS, HPLC, UV-Vis spectrometry and phytochemical assays. The antioxidant potential was evaluated using the DPPH assay, the antifungal effect was studied on Aspergillus niger ATCC 15475 and Penicillium hirsutum ATCC 52323, while the genoprotective effect was evaluated using the Allium cepa assay. The anti-inflammatory effect was evaluated in two inflammation experimental models (dextran and kaolin) by plethysmometry. Male Wistar rats were treated by gavage with distilled water (negative control), the microemulsion (positive control), diclofenac sodium aqueous solution (reference) and microemulsions containing juniper extract (experimental group). The initial paw volume and the paw volumes at 1, 2, 3, 4, 5 and 24 h were measured. RESULTS Total terpenoids, phenolics and flavonoids were estimated to be 13.44 ± 0.14 mg linalool equivalent, 19.23 ± 1.32 mg gallic acid equivalent, and 5109.6 ± 21.47 mg rutin equivalent per 100 g of extract, respectively. GC-MS characterization of the juniper extract identified 57 volatile compounds in the sample, while the HPLC analysis revealed the presence of the selected compounds (α-pinene, chlorogenic acid, rutin, apigenin, quercitin). The antioxidant potential of the crude extract was found to be 81.63 ± 0.38% (measured by the DPPH method). The results of the antifungal activity assay (for Aspergillus niger and Penicillium hirsutum) were 21.6 mm, respectively 17.2 mm as inhibition zone. Test results demonstrated the genoprotective potential of J. communis undiluted extract, inhibiting the mitodepressive effect of ethanol. The anti-inflammatory action of the juniper extract, administered as microemulsion in acute-dextran model was increased when compared to kaolin subacute inflammation induced model. CONCLUSION The hydroalcoholic extract obtained from wild-growing Juniperus communis native to Romanian southern sub-Carpathian hills has genoprotective, antioxidant, antifungal and anti-inflammatory properties.
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Affiliation(s)
- Irina Fierascu
- The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 011464 Bucharest, Romania
| | - Camelia Ungureanu
- Faculty of Applied Chemistry and Material Science, University Politehnica of Bucharest, 1 Polizu Str., 011061 Bucharest, Romania
| | - Sorin Marius Avramescu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 011464 Bucharest, Romania
- Research Center for Environmental Protection and Waste Management, University of Bucharest, 36-46 M. Kogalniceanu Blvd., 050107 Bucharest, Romania
| | - Carmen Cimpeanu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 011464 Bucharest, Romania
| | - Mihaela Ioana Georgescu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 011464 Bucharest, Romania
| | - Radu Claudiu Fierascu
- The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 011464 Bucharest, Romania
| | - Alina Ortan
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 011464 Bucharest, Romania
| | - Anca Nicoleta Sutan
- Department of Natural Sciences, University of Pitesti, 1 Targu din Vale, 110040 Pitesti, Arges Romania
| | - Valentina Anuta
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Anca Zanfirescu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Cristina Elena Dinu-Pirvu
- University of Agronomic Science and Veterinary Medicine, 59 Marasti Blvd, 011464 Bucharest, Romania
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Bruno Stefan Velescu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
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Fierascu RC, Georgiev MI, Fierascu I, Ungureanu C, Avramescu SM, Ortan A, Georgescu MI, Sutan AN, Zanfirescu A, Dinu-Pirvu CE, Velescu BS, Anuta V. Mitodepressive, antioxidant, antifungal and anti-inflammatory effects of wild-growing Romanian native Arctium lappa L. (Asteraceae) and Veronica persica Poiret (Plantaginaceae). Food Chem Toxicol 2017; 111:44-52. [PMID: 29126799 DOI: 10.1016/j.fct.2017.11.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [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: 08/09/2017] [Revised: 11/05/2017] [Accepted: 11/06/2017] [Indexed: 11/20/2022]
Abstract
The present study aims to evaluate the potential uses of hydroalcoholic extracts obtained from Romanian native wild-growing plants. The hydroalcoholic extracts were obtained from the burdock roots and respectively the aerial parts of birdeye speedwell. The extracts were characterised by HPLC (quantifying 13 compounds in the V. persica extract, 6 compounds in the A. lappa extract and confirming the presence of arctiin and arctigenin in the burdock extract). The antioxidant potential of the crude extracts was evaluated using two methods: the DPPH assay (79.91% for speedwell extract, 76.23% for burdock extract) and the phosphomolybdate method (296.5 mg/g ascorbic acid equivalents for burdock, 324.4 mg/g for speedwell). The crude extracts were found to be active against both fungal lines used (Aspergillus niger and Penicillium hirsutum), inhibition zones - 17.1 mm and 13.1 mm against P. hirsutum, respectively ca. 22 mm for both extracts against A. niger. The cytogenetic effects (assessed using the Allium cepa assay) revealed a series of chromosomal aberrations and nuclear aberrations induced in the meristematic root cells. The anti-inflammatory effect, estimated in two inflammation experimental models, showed a significant effect, especially for the speedwell extract. The results recommend the evaluated extracts as promising sources of biologically-active compounds.
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Affiliation(s)
- Radu Claudiu Fierascu
- University of Agronomic Science and Veterinary Medicine, Bucharest, Romania; The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
| | - Milen I Georgiev
- University of Agronomic Science and Veterinary Medicine, Bucharest, Romania; Laboratory of Applied Biotechnologies, Institute of Microbiology, Bulgarian Academy of Sciences, Plovdiv, Bulgaria University, Romania
| | - Irina Fierascu
- University of Agronomic Science and Veterinary Medicine, Bucharest, Romania; The National Institute for Research & Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania.
| | - Camelia Ungureanu
- Politehnica of Bucharest, Faculty of Applied Chemistry and Material Science, Bucharest, Romania
| | - Sorin Marius Avramescu
- University of Agronomic Science and Veterinary Medicine, Bucharest, Romania; Research Center for Environmental Protection and Waste Management, University of Bucharest, Bucharest, Romania
| | - Alina Ortan
- University of Agronomic Science and Veterinary Medicine, Bucharest, Romania
| | | | - Anca Nicoleta Sutan
- University of Pitesti, Department of Natural Sciences, Pitesti, Arges, Romania
| | - Anca Zanfirescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Cristina Elena Dinu-Pirvu
- University of Agronomic Science and Veterinary Medicine, Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | | | - Valentina Anuta
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
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Dima SO, Panaitescu DM, Orban C, Ghiurea M, Doncea SM, Fierascu RC, Nistor CL, Alexandrescu E, Nicolae CA, Trică B, Moraru A, Oancea F. Bacterial Nanocellulose from Side-Streams of Kombucha Beverages Production: Preparation and Physical-Chemical Properties. Polymers (Basel) 2017; 9:E374. [PMID: 30971046 PMCID: PMC6418918 DOI: 10.3390/polym9080374] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [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: 07/15/2017] [Revised: 08/11/2017] [Accepted: 08/14/2017] [Indexed: 12/23/2022] Open
Abstract
We focused on preparing cellulose nanofibrils by purification, separation, and mechanical treatment of Kombucha membranes (KM) resulted as secondary product from beverage production by fermentation of tea broth with symbiotic culture of bacteria and yeast (SCOBY). We purified KM using two alkaline solutions, 1 and 4 M NaOH, which afterwards were subjected to various mechanical treatments. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), dynamic light scattering (DLS), X-ray diffraction (XRD), X-ray fluorescence (XRF), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA) were employed to evaluate the purification degree, the size and aspect of cellulose fibrils after each treatment step, the physical-chemical properties of intermediary and final product, and for comparison with micro-crystalline cellulose from wooden sources. We determined that 1 M NaOH solution leads to approx. 85% purification, while a higher concentration assures almost 97% impurities removal. XRD analysis evidenced an increase in crystallinity from 37% to 87% after purification, the characteristic diffractograms of Iα and Iβ cellulose allomorphs, and a further decrease in crystallinity to 46% after microfluidization, fact correlated with a drastically decrease in fibrils' size. FTIR analysis evidenced the appearance of new chain ends by specific transmission bands at 2941 and 2843cm-1.
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Affiliation(s)
| | | | - Csongor Orban
- S.C. Corax Bioner CEU S.A., 53 Sarkadi Elek, Miercurea Ciuc 530200, Romania.
| | - Marius Ghiurea
- INCDCP ICECHIM, 202 Splaiul Independentei, Bucharest 060021, Romania.
| | | | | | | | | | | | - Bogdan Trică
- INCDCP ICECHIM, 202 Splaiul Independentei, Bucharest 060021, Romania.
| | - Angela Moraru
- S.C. Laboratoarele Medica Srl, 11 Frasinului Str., Otopeni 075100, Romania.
| | - Florin Oancea
- INCDCP ICECHIM, 202 Splaiul Independentei, Bucharest 060021, Romania.
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42
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Paunescu A, Zgurschi G, Soare LC, Man GM, Brinzea G, Fierascu RC, Fierascu I, Ponepal MC. The Protective Role of Thiourea on Leuciscus cephalus Exposed to Sublethal Doses of Pendigan 330EC (Pendimethalin) Herbicide. Bull Environ Contam Toxicol 2016; 97:203-210. [PMID: 27207230 DOI: 10.1007/s00128-016-1834-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/24/2015] [Accepted: 05/17/2016] [Indexed: 06/05/2023]
Abstract
The aim of the study was to investigate the protective role of thiourea on the physiological, hematological, biochemical and histopathological parameters of Leuciscus cephalus exposed to sublethal concentration of Pendigan 330 EC herbicide. The animals were divided in four experimental groups (control, animals subjected to 1 ‰ thiourea, animals subjected to 4 × 10(-4) mL/L herbicide and, respectively, animals subjected to 4 × 10(-4) mL/L herbicide and 1 ‰ thiourea). Exposure of European chub to herbicide administered in water for 2 weeks determined installation of pathological changes in the liver and gills tissues. Also, were observed a decrease in the number of white blood cells and oxygen consumption, breathing frequency, and an increase in the number of red blood cells and glycaemia values. Thiourea counteracts the toxic action, describing itself as normal liver parenchyma and normal gills in animals intoxicated with herbicide, without lesion, and a return to normal values of the studied markers.
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Affiliation(s)
- Alina Paunescu
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu Din Vale Street, 110040, Pitesti, Romania
| | - Gabriela Zgurschi
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu Din Vale Street, 110040, Pitesti, Romania
| | - Liliana Cristina Soare
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu Din Vale Street, 110040, Pitesti, Romania
| | - George Mihail Man
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu Din Vale Street, 110040, Pitesti, Romania
| | - Gheorghita Brinzea
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu Din Vale Street, 110040, Pitesti, Romania
| | - Radu Claudiu Fierascu
- National Research and Development Institute for Chemistry and Petrochemistry - ICECHIM, 202 Spl. Independentei, Sect. 6, 060021, Bucharest, Romania
| | - Irina Fierascu
- National Research and Development Institute for Chemistry and Petrochemistry - ICECHIM, 202 Spl. Independentei, Sect. 6, 060021, Bucharest, Romania.
| | - Maria Cristina Ponepal
- Department of Ecology, Faculty of Science, University of Pitesti, 2 Targu Din Vale Street, 110040, Pitesti, Romania
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Ion RM, Faraon VA, Senin RM, Fierascu RC. Spectroscopic study and catalytic activity for H2O2 decomposition of new zeolite-porphyrin systems. Reac Kinet Mech Cat 2016. [DOI: 10.1007/s11144-016-0982-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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44
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Donescu D, Raditoiu V, Spataru CI, Somoghi R, Ghiurea M, Radovici C, Fierascu RC, Schinteie G, Leca A, Kuncser V. Superparamagnetic magnetite–divinylbenzene–maleic anhydride copolymer nanocomposites obtained by dispersion polymerization. Eur Polym J 2012. [DOI: 10.1016/j.eurpolymj.2012.07.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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