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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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Talianu MT, Dinu-Pîrvu CE, Ghica MV, Anuţa V, Prisada RM, Popa L. Development and Characterization of New Miconazole-Based Microemulsions for Buccal Delivery by Implementing a Full Factorial Design Modeling. Pharmaceutics 2024; 16:271. [PMID: 38399325 PMCID: PMC10893023 DOI: 10.3390/pharmaceutics16020271] [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: 01/05/2024] [Revised: 01/31/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
This research aimed to develop miconazole-based microemulsions using oleic acid as a natural lipophilic phase and a stabilizer mixture comprising Tween 20 and PEG 400 to solubilize miconazole as an antifungal agent known for its activity in oral candidiasis and to improve its bioavailability. The formulation and preparation process was combined with a mathematical approach using a 23-full factorial plan. Fluid and gel-like microemulsions were obtained and analyzed considering pH, conductivity, and refractive index, followed by extensive analyses focused on droplet size, zeta potential, rheological behavior, and goniometry. In vitro release tests were performed to assess their biopharmaceutical characteristics. Independent variables coded X1-Oleic acid (%, w/w), X2-Tween 20 (%, w/w), and X3-PEG 400 (%, w/w) were analyzed in relationship with three main outputs like mean droplet size, work of adhesion, and diffusion coefficient by combining statistical tools with response surface methodology. The microemulsion containing miconazole base-2%, oleic acid-5%, Tween 20-40%, PEG 400-20%, and water-33% exhibited a mean droplet size of 119.6 nm, a work of adhesion of 71.98 mN/m, a diffusion coefficient of 2.11·10-5 cm2/s, and together with remarked attributes of two gel-like systems formulated with higher oil concentrations, modeled the final optimization step of microemulsions as potential systems for buccal delivery.
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Affiliation(s)
- Marina-Theodora Talianu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (R.M.P.); (L.P.)
| | - 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; (M.-T.T.); (C.-E.D.-P.); (V.A.); (R.M.P.); (L.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; (M.-T.T.); (C.-E.D.-P.); (V.A.); (R.M.P.); (L.P.)
- Innovative Therapeutic Structures R&D Center (InnoTher), “Carol Davila’’ University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Valentina Anuţa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (R.M.P.); (L.P.)
- Innovative Therapeutic Structures R&D Center (InnoTher), “Carol Davila’’ University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 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; (M.-T.T.); (C.-E.D.-P.); (V.A.); (R.M.P.); (L.P.)
| | - 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; (M.-T.T.); (C.-E.D.-P.); (V.A.); (R.M.P.); (L.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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Popa L, Ghica MV, Dinu-Pîrvu CE. Chitosan Biomaterials: Advances and Challenges. Int J Mol Sci 2023; 24:16150. [PMID: 38003340 PMCID: PMC10671132 DOI: 10.3390/ijms242216150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
The purpose of this Special Issue was to review research focusing on the development of formulations based on chitosan or its derivatives together with other molecules, producing biomaterials with improved physicochemical properties and effects [...].
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Affiliation(s)
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (L.P.); (C.-E.D.-P.)
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Tudoroiu EE, Dinu-Pîrvu CE, Albu Kaya MG, Popa L, Anuța V, Prisada RM, Ghica MV. An Overview of Cellulose Derivatives-Based Dressings for Wound-Healing Management. Pharmaceuticals (Basel) 2021; 14:1215. [PMID: 34959615 PMCID: PMC8706040 DOI: 10.3390/ph14121215] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 12/23/2022] Open
Abstract
Presently, notwithstanding the progress regarding wound-healing management, the treatment of the majority of skin lesions still represents a serious challenge for biomedical and pharmaceutical industries. Thus, the attention of the researchers has turned to the development of novel materials based on cellulose derivatives. Cellulose derivatives are semi-synthetic biopolymers, which exhibit high solubility in water and represent an advantageous alternative to water-insoluble cellulose. These biopolymers possess excellent properties, such as biocompatibility, biodegradability, sustainability, non-toxicity, non-immunogenicity, thermo-gelling behavior, mechanical strength, abundance, low costs, antibacterial effect, and high hydrophilicity. They have an efficient ability to absorb and retain a large quantity of wound exudates in the interstitial sites of their networks and can maintain optimal local moisture. Cellulose derivatives also represent a proper scaffold to incorporate various bioactive agents with beneficial therapeutic effects on skin tissue restoration. Due to these suitable and versatile characteristics, cellulose derivatives are attractive and captivating materials for wound-healing applications. This review presents an extensive overview of recent research regarding promising cellulose derivatives-based materials for the development of multiple biomedical and pharmaceutical applications, such as wound dressings, drug delivery devices, and tissue engineering.
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Affiliation(s)
- Elena-Emilia Tudoroiu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy Bucharest, 6 Traian Vuia Str., 020956 Bucharest, Romania; (E.-E.T.); (L.P.); (V.A.); (R.M.P.); (M.V.G.)
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy Bucharest, 6 Traian Vuia Str., 020956 Bucharest, Romania; (E.-E.T.); (L.P.); (V.A.); (R.M.P.); (M.V.G.)
| | - Mădălina Georgiana Albu Kaya
- Department of Collagen, Division Leather and Footwear Research Institute, National Research and Development Institute for Textile and Leather, 93 Ion Minulescu Str., 031215 Bucharest, Romania
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy Bucharest, 6 Traian Vuia Str., 020956 Bucharest, Romania; (E.-E.T.); (L.P.); (V.A.); (R.M.P.); (M.V.G.)
| | - Valentina Anuța
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy Bucharest, 6 Traian Vuia Str., 020956 Bucharest, Romania; (E.-E.T.); (L.P.); (V.A.); (R.M.P.); (M.V.G.)
| | - Răzvan Mihai Prisada
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy Bucharest, 6 Traian Vuia Str., 020956 Bucharest, Romania; (E.-E.T.); (L.P.); (V.A.); (R.M.P.); (M.V.G.)
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy Bucharest, 6 Traian Vuia Str., 020956 Bucharest, Romania; (E.-E.T.); (L.P.); (V.A.); (R.M.P.); (M.V.G.)
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Talianu MT, Dinu-Pîrvu CE, Ghica MV, Anuţa V, Jinga V, Popa L. Foray into Concepts of Design and Evaluation of Microemulsions as a Modern Approach for Topical Applications in Acne Pathology. Nanomaterials (Basel) 2020; 10:E2292. [PMID: 33228156 PMCID: PMC7699607 DOI: 10.3390/nano10112292] [Citation(s) in RCA: 4] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 01/19/2023]
Abstract
With a fascinating complexity, governed by multiple physiological processes, the skin is considered a mantle with protective functions which during lifetime are frequently impaired, triggering dermatologic disorders. As one of the most prevalent dermatologic conditions worldwide, characterized by a complex pathogenesis and a high recurrence, acne can affect the patient's quality of life. Smart topical vehicles represent a good option in the treatment of a versatile skin condition. By surpassing the stratum corneum known for diffusional resistance, a superior topical bioavailability can be obtained at the affected place. In this direction, the literature study presents microemulsions as a part of a condensed group of modern formulations. Microemulsions are appreciated for their superior profile in matters of drug delivery, especially for challenging substances with hydrophilic or lipophilic structures. Formulated as transparent and thermodynamically stable systems, using simplified methods of preparation, microemulsions have a simple and clear appearance. Their unique structures can be explained as a function of the formulation parameters which were found to be the mainstay of a targeted therapy.
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Affiliation(s)
- Marina-Theodora Talianu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Valentina Anuţa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
| | - Viorel Jinga
- Department of Clinical Sciences, no.3, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020950 Bucharest, Romania; (M.-T.T.); (C.-E.D.-P.); (V.A.); (L.P.)
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Popescu R, Ghica MV, Dinu-Pîrvu CE, Anuța V, Lupuliasa D, Popa L. New Opportunity to Formulate Intranasal Vaccines and Drug Delivery Systems Based on Chitosan. Int J Mol Sci 2020; 21:ijms21145016. [PMID: 32708704 PMCID: PMC7404068 DOI: 10.3390/ijms21145016] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022] Open
Abstract
In an attempt to develop drug delivery systems that bypass the blood–brain barrier (BBB) and prevent liver and intestinal degradation, it was concluded that nasal medication meets these criteria and can be used for drugs that have these drawbacks. The aim of this review is to present the influence of the properties of chitosan and its derivatives (mucoadhesion, permeability enhancement, surface tension, and zeta potential) on the development of suitable nasal drug delivery systems and on the nasal bioavailability of various active pharmaceutical ingredients. Interactions between chitosan and proteins, lipids, antigens, and other molecules lead to complexes that have their own applications or to changing characteristics of the substances involved in the bond (conformational changes, increased stability or solubility, etc.). Chitosan and its derivatives have their own actions (antibacterial, antifungal, immunostimulant, antioxidant, etc.) and can be used as such or in combination with other molecules from the same class to achieve a synergistic effect. The applicability of the properties is set out in the second part of the paper, where nasal formulations based on chitosan are described (vaccines, hydrogels, nanoparticles, nanostructured lipid carriers (NLC), powders, emulsions, etc.).
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Affiliation(s)
- Roxana Popescu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
- Correspondence:
| | - Valentina Anuța
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
| | - Dumitru Lupuliasa
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy ”Carol Davila”, 020956 Bucharest, Romania;
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
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Kaya DA, Ghica MV, Dănilă E, Öztürk Ş, Türkmen M, Albu Kaya MG, Dinu-Pîrvu CE. Selection of Optimal Operating Conditions for Extraction of Myrtus Communis L. Essential Oil by the Steam Distillation Method. Molecules 2020; 25:molecules25102399. [PMID: 32455788 PMCID: PMC7287582 DOI: 10.3390/molecules25102399] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 05/19/2020] [Indexed: 01/27/2023] Open
Abstract
Myrtus communis L. is one of the important aromatic and medicinal species from the Mediterranean area. It is used in various fields such as culinary, cosmetic, pharmaceutical, therapeutic, and industrial applications. Thus, a Box–Wilson experimental plan was used in this study to select the optimal operating conditions in order to obtain high volumes of essential oils. The factorial design method was applied to evaluate at an industrial scale the effect of major process variables on the essential oil extraction from Myrtus communis L. herbs by the steam distillation method. The input variables considered as significant operating conditions were: X1—boiler occupancy rate (boilers were filled to 50%, 75%, and 100%), X2—distillation duration (distillation was continued 60, 75, and 90 min), and X3—particle size (herbs were cut in sizes of 10, 20, and 30 mm via guillotine). The dependent variable selected, coded as Y, was the essential oil volume obtained (mL). The steps of the classical statistical experimental design technique were complemented with the Taguchi method to improve the extraction efficacy of essential oil from Myrtus communis L., and the optimum parameter conditions were selected: boiler occupancy rate 100%, distillation duration 75 min, and particle size 20 mm. Following the optimum parameters, the GC-MS assay revealed for the Myrtus communis L. essential oil two predominant components, α-pinene—33.14% and eucalyptol—55.09%.
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Affiliation(s)
- Durmuş Alpaslan Kaya
- Department of Field Crops, Faculty of Agriculture, Mustafa Kemal University, 31034 Antakya-Hatay, Turkey; (D.A.K.); (M.T.)
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 20956 Bucharest, Romania;
- Correspondence: (M.V.G.); (E.D.); Tel.: +40-74-448-6250 (M.V.G.)
| | - Elena Dănilă
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania
- Correspondence: (M.V.G.); (E.D.); Tel.: +40-74-448-6250 (M.V.G.)
| | - Şevket Öztürk
- Department of Field Crops, Faculty of Agriculture, Mustafa Kemal University, 31034 Antakya-Hatay, Turkey; (D.A.K.); (M.T.)
| | - Musa Türkmen
- Department of Field Crops, Faculty of Agriculture, Mustafa Kemal University, 31034 Antakya-Hatay, Turkey; (D.A.K.); (M.T.)
| | - Mădălina Georgiana Albu Kaya
- Department of Collagen, Division Leather and Footwear Research Institute, National Research and Development Institute for Textile and Leather, 031215 Bucharest, Romania;
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 20956 Bucharest, Romania;
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Irimia T, Ghica MV, Popa L, Anuţa V, Arsene AL, Dinu-Pîrvu CE. Strategies for Improving Ocular Drug Bioavailability and Corneal Wound Healing with Chitosan-Based Delivery Systems. Polymers (Basel) 2018; 10:E1221. [PMID: 30961146 PMCID: PMC6290606 DOI: 10.3390/polym10111221] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [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: 10/17/2018] [Revised: 10/29/2018] [Accepted: 11/02/2018] [Indexed: 01/30/2023] Open
Abstract
The main inconvenience of conventional eye drops is the rapid washout of the drugs due to nasolacrimal drainage or ophthalmic barriers. The ocular drug bioavailability can be improved by either prolonging retention time in the cul-de-sac or by increasing the ocular permeability. The focus of this review is to highlight some chitosan-based drug delivery approaches that proved to have good clinical efficacy and high potential for use in ophthalmology. They are exemplified by recent studies exploring in-depth the techniques and mechanisms in order to improve ocular bioavailability of the active substances. Used alone or in combination with other compounds with synergistic action, chitosan enables ocular retention time and corneal permeability. Associated with other stimuli-responsive polymers, it enhances the mechanical strength of the gels. Chitosan and its derivatives increase drug permeability through the cornea by temporarily opening tight junctions between epithelial cells. Different types of chitosan-based colloidal systems have the potential to overcome the ocular barriers without disturbing the vision process. Chitosan also plays a key role in improving corneal wound healing by stimulating the migration of keratinocytes when it is used alone or in combination with other compounds with synergistic action.
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Affiliation(s)
- Teodora Irimia
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Valentina Anuţa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Andreea-Letiţia Arsene
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
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Irimia T, Dinu-Pîrvu CE, Ghica MV, Lupuleasa D, Muntean DL, Udeanu DI, Popa L. Chitosan-Based In Situ Gels for Ocular Delivery of Therapeutics: A State-of-the-Art Review. Mar Drugs 2018; 16:E373. [PMID: 30304825 PMCID: PMC6212818 DOI: 10.3390/md16100373] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/01/2018] [Accepted: 10/06/2018] [Indexed: 11/16/2022] Open
Abstract
Ocular in situ gels are a promising alternative to overcome drawbacks of conventional eye drops because they associate the advantages of solutions such as accuracy and reproducibility of dosing, or ease of administration with prolonged contact time of ointments. Chitosan is a natural polymer suitable for use in ophthalmic formulations due to its biocompatibility, biodegradability, mucoadhesive character, antibacterial and antifungal properties, permeation enhancement and corneal wound healing effects. The combination of chitosan, pH-sensitive polymer, with other stimuli-responsive polymers leads to increased mechanical strength of formulations and an improved therapeutic effect due to prolonged ocular contact time. This review describes in situ gelling systems resulting from the association of chitosan with various stimuli-responsive polymers with emphasis on the mechanism of gel formation and application in ophthalmology. It also comprises the main techniques for evaluation of chitosan in situ gels, along with requirements of safety and ocular tolerability.
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Affiliation(s)
- Teodora Irimia
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Dumitru Lupuleasa
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Daniela-Lucia Muntean
- Department of Analytical Chemistry and Analysis of Medicines, Faculty of Pharmacy, University of Medicine and Pharmacy of Târgu Mureş, Târgu Mureş 540138, Romania.
| | - Denisa Ioana Udeanu
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
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Ghica MV, Hîrjău M, Lupuleasa D, Dinu-Pîrvu CE. Flow and Thixotropic Parameters for Rheological Characterization of Hydrogels. Molecules 2016; 21:E786. [PMID: 27322222 PMCID: PMC6273008 DOI: 10.3390/molecules21060786] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/06/2016] [Accepted: 06/13/2016] [Indexed: 12/26/2022] Open
Abstract
The goal of this paper was to design several sodium carboxymethylcellulose hydrogels containing a BCS class II model drug and to evaluate their flow and thixotropic properties. The rheological measurements were performed at two temperatures (23 °C and 37 °C), using a rotational viscometer. The hydrogels were stirred at different time intervals (10 s, 2, 5, 10 and 20 min at 23 °C, and 10 s, 2 and 5 min at 37 °C), with a maximum rotational speed of 60 rpm, and the corresponding forward and backward rheograms were recorded as shear stress vs. shear rate. For all hydrogels, the rheological data obtained at both temperatures showed a decrease of viscosity with the increase of the shear rate, highlighting a pseudoplastic behaviour. The flow profiles viscosity vs. shear rate were quantified through power law model, meanwhile the flow curves shear stress vs. shear rate were assessed by applying the Herschel-Bulkley model. The thixotropic character was evaluated through different descriptors: thixotropic area, thixotropic index, thixotropic constant and destructuration thixotropic coefficient. The gel-forming polymer concentration and the rheological experiments temperature significantly influence the flow and thixotropic parameters values of the designed hydrogels. The rheological characteristics described have an impact on the drug release microenvironment and determine the stasis time at the application site.
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Affiliation(s)
- Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Mircea Hîrjău
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Dumitru Lupuleasa
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
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