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Ali S, Aman A, Hengphasatporn K, Oopkaew L, Todee B, Fujiki R, Harada R, Shigeta Y, Krusong K, Choowongkomon K, Chavasiri W, Wolschann P, Mahalapbutr P, Rungrotmongkol T. Evaluating solubility, stability, and inclusion complexation of oxyresveratrol with various β-cyclodextrin derivatives using advanced computational techniques and experimental validation. Comput Biol Chem 2024; 112:108111. [PMID: 38879954 DOI: 10.1016/j.compbiolchem.2024.108111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/10/2024] [Accepted: 05/23/2024] [Indexed: 06/18/2024]
Abstract
Oxyresveratrol (OXY), a natural stilbenoid in mulberry fruits, is known for its diverse pharmacological properties. However, its clinical use is hindered by low water solubility and limited bioavailability. In the present study, the inclusion complexes of OXY with β-cyclodextrin (βCD) and its three analogs, dimethyl-β-cyclodextrin (DMβCD), hydroxypropyl-β-cyclodextrin (HPβCD) and sulfobutylether-β-cyclodextrin (SBEβCD), were investigated using in silico and in vitro studies. Molecular docking revealed two binding orientations of OXY, namely, 4',6'-dihydroxyphenyl (A-form) and 5,7-benzenediol ring (B-form). Molecular Dynamics simulations suggested the formation of inclusion complexes with βCDs through two distinct orientations, with OXY/SBEβCD exhibiting maximum atom contacts and the lowest solvent-exposed area in the hydrophobic cavity. These results corresponded well with the highest binding affinity observed in OXY/SBEβCD when assessed using the MM/GBSA method. Beyond traditional simulation methods, Ligand-binding Parallel Cascade Selection Molecular Dynamics method was employed to investigate how the drug enters and accommodates within the hydrophobic cavity. The in silico results aligned with stability constants: SBEβCD (2060 M-1), HPβCD (1860 M-1), DMβCD (1700 M-1), and βCD (1420 M-1). All complexes exhibited a 1:1 binding mode (AL type), with SBEβCD enhancing OXY solubility (25-fold). SEM micrographs, DSC thermograms, FT-IR and 1H NMR spectra confirm the inclusion complex formation, revealing novel surface morphologies, distinctive thermal behaviors, and new peaks. Notably, the inhibitory impact on the proliferation of breast cancer cell lines, MCF-7, exhibited by inclusion complexes particularly OXY/DMβCD, OXY/HPβCD, and OXY/SBEβCD were markedly superior compared to that of OXY alone.
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Affiliation(s)
- Saba Ali
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Aamir Aman
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kowit Hengphasatporn
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Lipika Oopkaew
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Bunyaporn Todee
- Department of Chemistry, Faculty of Science, Mahidol University, Rama VI Rd, Bangkok 10400, Thailand
| | - Ryo Fujiki
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Ryuhei Harada
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Kuakarun Krusong
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kiattawee Choowongkomon
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Warinthorn Chavasiri
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Peter Wolschann
- Institute of Theoretical Chemistry, University of Vienna, Vienna 1090, Austria
| | - Panupong Mahalapbutr
- Department of Biochemistry, Center for Translational Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Thanyada Rungrotmongkol
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand.
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Blaj DA, Peptu CA, Danu M, Harabagiu V, Peptu C, Bujor A, Ochiuz L, Tuchiluș CG. Enrofloxacin Pharmaceutical Formulations through the Polymer-Free Electrospinning of β-Cyclodextrin-oligolactide Derivatives. Pharmaceutics 2024; 16:903. [PMID: 39065598 PMCID: PMC11279624 DOI: 10.3390/pharmaceutics16070903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 06/28/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Enrofloxacin (ENR), a member of the fluoroquinolone class of antibiotics, is widely used in veterinary medicine to treat bacterial infections. Like many antibiotics, ENR has limited water solubility and low bioavailability. To address these challenges, drug formulations using solid dispersions, nanosuspensions, surfactants, cocrystal/salt formation, and inclusion complexes with cyclodextrins may be employed. The approach described herein proposes the development of ENR formulations by co-electrospinning ENR with custom-prepared cyclodextrin-oligolactide (CDLA) derivatives. This method benefits from the high solubility of these derivatives, enabling polymer-free electrospinning. The electrospinning parameters were optimized to incorporate significant amounts of ENR into the CDLA nanofibrous webs, reaching up to 15.6% by weight. The obtained formulations were characterized by FTIR and NMR spectroscopy methods and evaluated for their antibacterial activity against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. This study indicates that the presence of CDLA derivative does not inhibit the antibacterial activity of ENR, recommending these formulations for further development.
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Affiliation(s)
- Diana-Andreea Blaj
- “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania; (D.-A.B.); (V.H.)
- Faculty of Chemical Engineering and Protection of the Environment, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania; (C.A.P.); (M.D.)
| | - Cătălina Anișoara Peptu
- Faculty of Chemical Engineering and Protection of the Environment, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania; (C.A.P.); (M.D.)
| | - Maricel Danu
- Faculty of Chemical Engineering and Protection of the Environment, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania; (C.A.P.); (M.D.)
| | - Valeria Harabagiu
- “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania; (D.-A.B.); (V.H.)
| | - Cristian Peptu
- “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania; (D.-A.B.); (V.H.)
| | - Alexandra Bujor
- Faculty of Pharmacy, “Grigore. T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Lăcrămioara Ochiuz
- Faculty of Pharmacy, “Grigore. T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
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Hajieghrary F, Ghanbarzadeh B, Pezeshki A, Dadashi S, Falcone PM. Development of Hybrid Electrospun Nanofibers: Improving Effects of Cellulose Nanofibers (CNFs) on Electrospinnability of Gelatin. Foods 2024; 13:2114. [PMID: 38998620 PMCID: PMC11241272 DOI: 10.3390/foods13132114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/24/2024] [Accepted: 06/28/2024] [Indexed: 07/14/2024] Open
Abstract
Cellulose nanofibers (CNFs) were used to improve the electrospinnability of the gelatin protein in a water/ethanol/acetic acid (3:2:3, v/v) solution. The effects of different concentrations of CNFs (0.5-4%) on the important physical properties of the gelatin solution (15%), including rheology, conductivity, and surface tension, were investigated. The apparent viscosity and shear-thinning behavior were increased by increasing the CNF concentration from 0 to 4% at a low shear rate (<10 s-1). CNFs also increased the electrical conductivity and surface tension of the gelatin solution. Scanning electron microscopy (SEM) images revealed uniformly ordered structures with good continuity without fracture or bead formation in all hybrid nanofibers. They also showed that the average diameters of fibers decreased from 216 nm in the pure gelatin nanofibers to 175.39 nm in the hybrid gelatin/CNF (4%) ones. Differential scanning calorimetry (DSC) results showed that CNFs increased Tg, and X-ray diffraction (XRD) analysis showed that the electrospinning process caused the formation of more amorphous structures in the gelatin/CNF hybrid nanofibers. The tensile test indicated that by adding 2% CNFs, the ultimate tensile strength (UTS) and strain at break (SB) of nanofiber mats increased from 4.26 to 10.5 MPa and 3.3% to 6.25%, respectively. The current study indicated that incorporating CNFs at the optimal concentration into a gelatin solution can improve the resulting hybrid nanofibers' morphology, average diameter, and mechanical properties.
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Affiliation(s)
- Farnaz Hajieghrary
- Department of Food Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz 5166616471, Iran (A.P.); (S.D.)
| | - Babak Ghanbarzadeh
- Department of Food Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz 5166616471, Iran (A.P.); (S.D.)
| | - Akram Pezeshki
- Department of Food Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz 5166616471, Iran (A.P.); (S.D.)
| | - Saeed Dadashi
- Department of Food Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz 5166616471, Iran (A.P.); (S.D.)
| | - Pasquale M. Falcone
- Department of Agricultural, Food, and Environmental Sciences, University Polytechnical of Marche, Brecce Bianche 10, 60131 Ancona, Italy
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Garcia KR, Beck RCR, Brandalise RN, dos Santos V, Koester LS. Nanocellulose, the Green Biopolymer Trending in Pharmaceuticals: A Patent Review. Pharmaceutics 2024; 16:145. [PMID: 38276515 PMCID: PMC10819157 DOI: 10.3390/pharmaceutics16010145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
The use of nanocellulose in pharmaceutics is a trend that has emerged in recent years. Its inherently good mechanical properties, compared to different materials, such as its high tensile strength, high elastic modulus and high porosity, as well as its renewability and biodegradability are driving nanocellulose's industrial use and innovations. In this sense, this study aims to conduct a search of patents from 2011 to 2023, involving applications of nanocellulose in pharmaceuticals. A patent search was carried out, employing three different patent databases: Patentscope from World Intellectual Property Organization (WIPO); Espacenet; and LENS.ORG. Patents were separated into two main groups, (i) nanocellulose (NC) comprising all its variations and (ii) bacterial nanocellulose (BNC), and classified into five major areas, according to their application. A total of 215 documents was retrieved, of which 179 were referred to the NC group and 36 to the BNC group. The NC group depicted 49.7%, 15.6%, 16.2%, 8.9% and 9.5% of patents as belonging to design and manufacturing, cell culture systems, drug delivery, wound healing and tissue engineering clusters, respectively. The BNC group classified 44.5% of patents as design and manufacturing and 30.6% as drug delivery, as well as 5.6% and 19.4% of patents as wound healing and tissue engineering, respectively. In conclusion, this work compiled and classified patents addressing exclusively the use of nanocellulose in pharmaceuticals, providing information on its current status and trending advancements, considering environmental responsibility and sustainability in materials and products development for a greener upcoming future.
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Affiliation(s)
- Keth Ribeiro Garcia
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil; (K.R.G.); (R.C.R.B.)
| | - Ruy Carlos Ruver Beck
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil; (K.R.G.); (R.C.R.B.)
| | - Rosmary Nichele Brandalise
- Programa de Pós-Graduação em Engenharia de Processos e Tecnologias, Universidade de Caxias do Sul (UCS), Caxias do Sul 95070-560, Brazil; (R.N.B.); (V.d.S.)
| | - Venina dos Santos
- Programa de Pós-Graduação em Engenharia de Processos e Tecnologias, Universidade de Caxias do Sul (UCS), Caxias do Sul 95070-560, Brazil; (R.N.B.); (V.d.S.)
| | - Letícia Scherer Koester
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil; (K.R.G.); (R.C.R.B.)
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Yang X, Zhao D, Ge S, Bian P, Xue H, Lang Y. Alginate-based edible coating with oregano essential oil/β-cyclodextrin inclusion complex for chicken breast preservation. Int J Biol Macromol 2023; 251:126126. [PMID: 37541460 DOI: 10.1016/j.ijbiomac.2023.126126] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 07/13/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
A sodium alginate (SA) edible coating containing oregano essential oil (OEO)/β-cyclodextrin (β-CD) inclusion complexes (SA/OEO-MP coating) was developed to extend the shelf life of fresh chicken breast during refrigeration storage. First, OEO was inserted into the hydrophobic interior of β-CD to form an inclusion complex (OEO-MP) that maintained its excellent antioxidant and antibacterial activities. The formed OEO-MP was characterized using fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). In addition, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) results demonstrated that β-CD could improve the thermal stability of OEO. The encapsulation efficiency reached 71.6 %, and OEO was released continuously from the OEO-MP. The lipid oxidation, total viable count (TVC) and sensory properties of chicken breasts were regularly monitored when OEO-MP was incorporated into the SA coating for chicken breast preservation. Compared with the uncoated group, the SA/OEO-MP-coated groups showed significantly reduced increases in pH, thiobarbituric acid reactive substances (TBARS), total volatile base nitrogen (TVB-N), and TVC, especially in the SA/OEO-MP1 group. In summary, the SA/OEO-MP coating could preserve the chicken breast by reducing lipid oxidation and inhibiting the proliferation of microorganisms. It would be developed as a prospective edible packaging for chicken preservation.
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Affiliation(s)
- Xiaoxi Yang
- Hebei Key Laboratory of Public Health Safety, School of Public Health, Hebei University, Baoding 071002, China.
| | - Dongxue Zhao
- Hebei Key Laboratory of Public Health Safety, School of Public Health, Hebei University, Baoding 071002, China
| | - Shaohui Ge
- Hebei Key Laboratory of Public Health Safety, School of Public Health, Hebei University, Baoding 071002, China
| | - Pengsha Bian
- Hebei Research Center for Geoanalysis, Baoding 071051, China
| | - Hongmei Xue
- Department of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang 050031, China
| | - Yumiao Lang
- Hebei Key Laboratory of Public Health Safety, School of Public Health, Hebei University, Baoding 071002, China.
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Halder J, Mahanty R, Rajwar TK, Rai VK, Kar B, Ghosh G, Rath G. Nanofibers of Glycyrrhizin/Hydroxypropyl-β-Cyclodextrin Inclusion Complex: Enhanced Solubility Profile and Anti-inflammatory Effect of Glycyrrhizin. AAPS PharmSciTech 2023; 24:196. [PMID: 37783948 DOI: 10.1208/s12249-023-02662-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/19/2023] [Indexed: 10/04/2023] Open
Abstract
Despite having a wide range of therapeutic advantages, glycyrrhizin (GL) has few commercial applications due to its poor aqueous solubility. In this study, we combined the benefits of hydroxypropyl β-cyclodextrin (HP-βCD) supramolecular inclusion complexes and electrospun nanofibers to improve the solubility and therapeutic potential of GL. A molecular inclusion complex containing GL and HP-βCD was prepared by lyophilization at a 1:2 molar ratio. GL and hydroxypropyl β-cyclodextrin inclusion complexes were also incorporated into hyaluronic acid (HA) nanofibers. Prepared NF was analyzed for physical, chemical, thermal, and pharmaceutical properties. Additionally, a rat model of carrageenan-induced hind paw edema and macrophage cell lines was used to evaluate the anti-inflammatory activity of GL-HP-βCD NF. The DSC and XRD analyses clearly showed the amorphous state of GL in nanofibers. In comparison to pure GL, GL-HP-βCD NF displayed improved release (46.6 ± 2.16% in 5 min) and dissolution profiles (water dissolvability ≤ 6 s). Phase solubility results showed a four-fold increase in GL solubility in GL-HP-βCD NF. In vitro experiments on cell lines showed that inflammatory markers like IL-1β, TNF-α, and IL-6 were significantly lower in GL-HP-βCD NF compared to pure GL (p < 0.01 and p < 0.05). According to in vivo results, the prepared nanofiber exhibits a better anti-inflammatory effect than pure GL (63.4% inhibition vs 53.7% inhibition). The findings presented here suggested that GL-HP-βCD NF could serve as a useful strategy for improving the therapeutic effects of GL.
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Affiliation(s)
- Jitu Halder
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, India
| | - Ritu Mahanty
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, India
| | - Tushar Kanti Rajwar
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, India
| | - Vineet Kumar Rai
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, India
| | - Biswakanth Kar
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, India
| | - Goutam Ghosh
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, India
| | - Goutam Rath
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to Be University), Bhubaneswar, Odisha, India.
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Sarabia-Vallejo Á, Caja MDM, Olives AI, Martín MA, Menéndez JC. Cyclodextrin Inclusion Complexes for Improved Drug Bioavailability and Activity: Synthetic and Analytical Aspects. Pharmaceutics 2023; 15:2345. [PMID: 37765313 PMCID: PMC10534465 DOI: 10.3390/pharmaceutics15092345] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/13/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023] Open
Abstract
Many active pharmaceutical ingredients show low oral bioavailability due to factors such as poor solubility and physical and chemical instability. The formation of inclusion complexes with cyclodextrins, as well as cyclodextrin-based polymers, nanosponges, and nanofibers, is a valuable tool to improve the oral bioavailability of many drugs. The microencapsulation process modifies key properties of the included drugs including volatility, dissolution rate, bioavailability, and bioactivity. In this context, we present relevant examples of the stabilization of labile drugs through the encapsulation in cyclodextrins. The formation of inclusion complexes with drugs belonging to class IV in the biopharmaceutical classification system as an effective solution to increase their bioavailability is also discussed. The stabilization and improvement in nutraceuticals used as food supplements, which often have low intestinal absorption due to their poor solubility, is also considered. Cyclodextrin-based nanofibers, which are polymer-free and can be generated using environmentally friendly technologies, lead to dramatic bioavailability enhancements. The synthesis of chemically modified cyclodextrins, polymers, and nanosponges based on cyclodextrins is discussed. Analytical techniques that allow the characterization and verification of the formation of true inclusion complexes are also considered, taking into account the differences in the procedures for the formation of inclusion complexes in solution and in the solid state.
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Affiliation(s)
- Álvaro Sarabia-Vallejo
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain;
| | - María del Mar Caja
- Unidad de Química Analítica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain;
| | - Ana I. Olives
- Unidad de Química Analítica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain;
| | - M. Antonia Martín
- Unidad de Química Analítica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain;
| | - J. Carlos Menéndez
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain;
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Zhang Y, Tan Y, OuYang Q, Duan B, Wang Z, Meng K, Tan X, Tao N. γ-Cyclodextrin encapsulated thymol for citrus preservation and its possible mechanism against Penicillium digitatum. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105501. [PMID: 37532321 DOI: 10.1016/j.pestbp.2023.105501] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/04/2023] [Accepted: 06/13/2023] [Indexed: 08/04/2023]
Abstract
The volatility of essential oils greatly limits their industrial applications. Here, we successfully prepared γ-cyclodextrin (γ-CD) inclusion compounds (γ-CDTL) containing thymol (TL) for the control of green mold caused by Penicillium digitatum (P. digitatum) in citrus fruit. In vitro experiment showed that the minimum fungicidal concentration (MFC) of γ-CDTL against the hyphae growth of P. digitatum was 2.0 g/L, and 8 × MFC treatment significantly reduced the occurrence of green mold in citrus fruit and had no adverse effect on fruit quality in vivo test compared to prochloraz. Scanning electron microscopy (SEM), x-ray diffraction (XRD), fourier transform-infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), physical properties and sustained release properties were also performed, results indicated that the hydrogen bonds between TL and γ-CD were the basis for the formation of γ-CDTL. We further investigated the inhibition mechanism of γ-CDTL. SEM and TEM experiments showed that γ-CDTL treatment caused severe damage to the hyphal morphology and cells in 30 min and disrupted the permeability of P. digitatum mycelial cell walls by increasing the chitinase activity, thus accelerating the leakage of intracellular lysates. However, the integrity of the cell membrane was obviously damaged only after 60 min of treatment. In conclusion, we prepared a novel inclusion complex γ-CDTL with obvious antifungal effects and preliminarily elucidated its inclusion mechanism and antifungal mechanism. γ-CDTL might be a potent alternative to chemical fungicides for controlling the postharvest decay of citrus.
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Affiliation(s)
- Yonghua Zhang
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Yuanzhen Tan
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Qiuli OuYang
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Bin Duan
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Ziting Wang
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Kuixian Meng
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Xiaoli Tan
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China.
| | - Nengguo Tao
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, PR China.
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Sahu KM, Patra S, Swain SK. Host-guest drug delivery by β-cyclodextrin assisted polysaccharide vehicles: A review. Int J Biol Macromol 2023; 240:124338. [PMID: 37030461 DOI: 10.1016/j.ijbiomac.2023.124338] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/17/2023] [Accepted: 04/02/2023] [Indexed: 04/10/2023]
Abstract
Among different form of cyclodextrin (CD), β-CD has been taken a special attraction in pharmaceutical science due to lowest aqueous solubility and adequate cavity size. When β-CD forms inclusion complex with drugs then biopolymers such as polysaccharides in combination plays a vital role as a vehicle for safe release of drugs. It is noticed that, β-CD assisted polysaccharide-based composite achieves better drug release rate through host-guest mechanism. Present review is a critical analysis of this host-guest mechanism for release of drugs from polysaccharide supported β-CD inclusion complex. Various important polysaccharides such as cellulose, alginate, chitosan, dextran, etc. in relevant to drug delivery are logically compared in present review by their association with β-CD. Efficacy of mechanism of drug delivery by different polysaccharides with β-CD is analytically examined in schematic form. Drug release capacity at different pH conditions, mode of drug release, along with characterization techniques adopted by individual polysaccharide-based CD complexes are comparatively established in tabular form. This review may explore better visibility for researchers those are working in the area of controlled release of drugs by vehicle consist of β-CD associated polysaccharide composite through host-guest mechanism.
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Affiliation(s)
- Krishna Manjari Sahu
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, Odisha, India
| | - Swapnita Patra
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, Odisha, India
| | - Sarat K Swain
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, Odisha, India.
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Inclusion complexation of emodin with various β-cyclodextrin derivatives: Preparation, characterization, molecular docking, and anticancer activity. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shen C, Wu M, Sun C, Li J, Wu D, Sun C, He Y, Chen K. Chitosan/PCL nanofibrous films developed by SBS to encapsulate thymol/HPβCD inclusion complexes for fruit packaging. Carbohydr Polym 2022; 286:119267. [DOI: 10.1016/j.carbpol.2022.119267] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/17/2021] [Accepted: 02/16/2022] [Indexed: 11/25/2022]
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12
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Rajaram R, Angaiah S, Lee YR. Polymer supported electrospun nanofibers with supramolecular materials for biological applications – a review. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2075871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rajamohan Rajaram
- Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, India
- School of Chemical Engineering, Yeungnam University, Gyeongson, Republic of Korea
| | - Subramania Angaiah
- Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, India
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongson, Republic of Korea
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Core-Sheath Electrospun Nanofibers Based on Chitosan and Cyclodextrin Polymer for the Prolonged Release of Triclosan. Polymers (Basel) 2022; 14:polym14101955. [PMID: 35631838 PMCID: PMC9147127 DOI: 10.3390/polym14101955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 01/27/2023] Open
Abstract
This work focuses on the manufacture of core-sheath nanofibers (NFs) based on chitosan (CHT) as sheath and cyclodextrin polymer (PCD) as core and loaded with triclosan (TCL). In parallel, monolithic NFs consisting of blended CHT-PCD and TCL were prepared. Nanofibers were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Fourier Transform Infrared spectroscopy (FTIR). SEM displayed the morphology of NFs and the structure of the nanowebs, while TEM evidenced the core-sheath structure of NFs prepared by coaxial electrospinning. The core diameters and sheath thicknesses were found dependent on respective flow rates of both precursor solutions. Nanofibers stability and TCL release in aqueous medium were studied and correlated with the antibacterial activity against Staphylococcus aureus and Escherichia coli. Results showed that the release profiles of TCL and therefore the antibacterial activity were directly related to the type of nanofibers. In the case of monolithic nanofibers, the NFs matrix was composed of polyelectrolyte complex (PEC formed between CHT and PCD) and resulted in a prolonged release of TCL and a sustained antibacterial effect. In the case of core-sheath NFs, the PEC was formed only at the core-sheath interface, leading to less stable NFs and therefore to a faster release of TCL, and to a less extended antibacterial activity compared to monolithic ones.
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Lin Y, Huang R, Sun X, Yu X, Xiao Y, Wang L, Hu W, Zhong T. The p-Anisaldehyde/β-cyclodextrin inclusion complexes as a sustained release agent: Characterization, storage stability, antibacterial and antioxidant activity. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108561] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Antibacterial nanofibers of pullulan/tetracycline-cyclodextrin inclusion complexes for Fast-Disintegrating oral drug delivery. J Colloid Interface Sci 2021; 610:321-333. [PMID: 34923270 DOI: 10.1016/j.jcis.2021.12.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/01/2021] [Accepted: 12/03/2021] [Indexed: 12/16/2022]
Abstract
Tetracycline is a widely used antibiotic suffering from poor water solubility and low bioavailability. Here, hydroxypropyl-beta-cyclodextrin (HPβCD) was used to form inclusion complexes (IC) of tetracycline with 2:1 M ratio (CD:drug). Then, tetracycline-HPβCD-IC was mixed with pullulan- a non-toxic, water-soluble biopolymer - to form nanofibrous webs via electrospinning. The electrospinning of pullulan/tetracycline-HPβCD-IC was yielded into defect-free nanofibers collected in the form of a self-standing and flexible material with the loading capacity of ∼ 7.7 % (w/w). Pullulan/tetracycline nanofibers was also generated as control sample having the same drug loading. Tetracycline was found in the amorphous state in case of pullulan/tetracycline-HPβCD nanofibers due to inclusion complexation. Through inclusion complexation with HPβCD, enhanced aqueous solubility and faster release profile were provided for pullulan/tetracycline-HPβCD-IC nanofibers compared to pullulan/tetracycline one. Additionally, pullulan/tetracycline-HPβCD-IC nanofibers readily disintegrated when wetted with artificial saliva while pullulan/tetracycline nanofibers were not completely absorbed by the same simulate environment. Electrospun nanofibers showed promising antibacterial activity against both gram-positive and gram-negative bacteria. Briefly, our findings indicated that pullulan/tetracycline-HPβCD-IC nanofibers could be an attractive material as orally fast disintegrating drug delivery system for the desired antibiotic treatment thanks to its promising physicochemical and antibacterial properties.
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Saraiva S, Pereira P, Paula CT, Rebelo RC, Coelho JFJ, Serra AC, Fonseca AC. Development of electrospun mats based on hydrophobic hydroxypropyl cellulose derivatives. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 131:112498. [PMID: 34857284 DOI: 10.1016/j.msec.2021.112498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 10/06/2021] [Accepted: 10/13/2021] [Indexed: 12/21/2022]
Abstract
In this work, hydroxypropyl cellulose esters (HPCE) with long aliphatic chains were prepared and innovatively used in electrospinning to obtain hydroxypropyl cellulose (HPC)-based mats with enhanced resistance to moist environments. The described approach is very simple and does not require any post-treatment (e.g. cross-linking step) to overcome a major problem concerning the premature loss of properties of cellulose-based materials when in contact with moisture. HPCE-based electrospun mats were characterized in terms of their morphology, swelling ability and in vitro hydrolytic degradation. The mats exhibited a swelling capacity of over 115%, depending on the degree of substitution. The in vitro hydrolytic degradation tests showed the high structural integrity of the mats (< 5% weight loss) over a period of 30 days. The in vitro cytotoxicity tests showed that the mats of HPC esters are cytocompatible and promote the adhesion, proliferation and spreading of NIH3T3 fibroblast cells. These data suggest that the HPCE mats may be interesting materials for wound dressings, as well as for other tissue engineering applications.
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Affiliation(s)
- Sofia Saraiva
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Patrícia Pereira
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal; IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
| | - C T Paula
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - R C Rebelo
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Jorge F J Coelho
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Arménio C Serra
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Ana C Fonseca
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal.
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17
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Microwave-assisted synthesis of (3,5-disubstituted isoxazole)-linked benzimidazolone derivatives: DFT calculations and biological activities. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02764-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Chen Y, Cheng H, Wang W, Jin Z, Liu Q, Yang H, Cao Y, Li W, Fakhri A, Gupta VK. Preparation of carbon dots-hematite quantum dots-loaded hydroxypropyl cellulose-chitosan nanocomposites for drug delivery, sunlight catalytic and antimicrobial application. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 219:112201. [PMID: 33962112 DOI: 10.1016/j.jphotobiol.2021.112201] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/18/2021] [Accepted: 04/22/2021] [Indexed: 12/28/2022]
Abstract
In this project, we studied the thermal and chemical method for the synthesis of carbon dots (CDs)/Hematite (α-Fe2O3) quantum dots and the preparation of hydroxypropyl cellulose cross-linked chitosan (HPCCS) and ulvan (UN) was performed by chemical method. Carbon dots/α-Fe2O3 quantum dots with size distribution of 3-5 nm were completely encapsulated in the HPCCS/UN NPs to obtain composites, which indicated unique characteristics with respect to antimicrobial, pH-responsive and optical properties. The CDs-HQDs/HPCCS/UN nanocomposites exhibited a single-excitation (440 nm), dual-emission fluorescence property (505 nm and 628 nm for green and red light from CDs-HQDs and HPCCS/UN NPs). The nanocomposites played as a pH-responsive drug delivery process to release ulvan at a fast rate in pH 7.4 buffer solution but at a slow rate in low pH solutions. The CDs-HQDs/HPCCS/UN nanocomposites gained the highest photocatalytic activity for degrading 4-chlorophenol (4-CPh) as a pollutant (>98% during 70 min under sunlight irradiation). Moreover, the nanocomposites indicated great inhibitory influences towards bacterial and fungal.
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Affiliation(s)
- Yanuo Chen
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China
| | - Haixiang Cheng
- School of Chemical and Material Engineering, Quzhou College, Quzhou, Zhejiang 324000, China
| | - Weina Wang
- Anji Branch of Huzhou Ecological & Environment Bureau, Huzhou, Zhejiang 313300, China
| | - Zhe Jin
- Anji Branch of Huzhou Ecological & Environment Bureau, Huzhou, Zhejiang 313300, China
| | - Qi Liu
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Huayun Yang
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China
| | - Yong Cao
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China.
| | - Weidong Li
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China.
| | - Ali Fakhri
- Department of Chemistry, Nano Smart Science Institute (NSSI), Tehran, Iran; Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Vinod Kumar Gupta
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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Dodero A, Schlatter G, Hébraud A, Vicini S, Castellano M. Polymer-free cyclodextrin and natural polymer-cyclodextrin electrospun nanofibers: A comprehensive review on current applications and future perspectives. Carbohydr Polym 2021; 264:118042. [PMID: 33910745 DOI: 10.1016/j.carbpol.2021.118042] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 02/07/2023]
Abstract
The present review discusses the use of cyclodextrins and their derivatives to prepare electrospun nanofibers with specific features. Cyclodextrins, owing to their unique capability to form inclusion complexes with hydrophobic and volatile molecules, can indeed facilitate the encapsulation of bioactive compounds in electrospun nanofibers allowing fast-dissolving products for food, biomedical, and pharmaceutical purposes, filtering materials for wastewater and air purification, as well as a variety of other technological applications. Additionally, cyclodextrins can improve the processability of naturally occurring biopolymers helping the fabrication of "green" materials with a strong industrial relevance. Hence, this review provides a comprehensive state-of-the-art of different cyclodextrins-based nanofibers including those made of pure cyclodextrins, of polycyclodextrins, and those made of natural biopolymer functionalized with cyclodextrins. To this end, the advantages and disadvantages of such approaches and their possible applications are investigated along with the current limitations in the exploitation of electrospinning at the industrial level.
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Affiliation(s)
- Andrea Dodero
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, Genoa, 16146, Italy
| | - Guy Schlatter
- Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), CNRS UMR 7515, ECPM - University of Strasbourg, 25 Rue Becquerel, Strasbourg, 67087, France.
| | - Anne Hébraud
- Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), CNRS UMR 7515, ECPM - University of Strasbourg, 25 Rue Becquerel, Strasbourg, 67087, France
| | - Silvia Vicini
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, Genoa, 16146, Italy
| | - Maila Castellano
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, Genoa, 16146, Italy.
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20
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Liu Y, Lin T, Cheng C, Wang Q, Lin S, Liu C, Han X. Research Progress on Synthesis and Application of Cyclodextrin Polymers. Molecules 2021; 26:1090. [PMID: 33669556 PMCID: PMC7922926 DOI: 10.3390/molecules26041090] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/21/2022] Open
Abstract
Cyclodextrins (CDs) are a series of cyclic oligosaccharides formed by amylose under the action of CD glucosyltransferase that is produced by Bacillus. After being modified by polymerization, substitution and grafting, high molecular weight cyclodextrin polymers (pCDs) containing multiple CD units can be obtained. pCDs retain the internal hydrophobic-external hydrophilic cavity structure characteristic of CDs, while also possessing the stability of polymer. They are a class of functional polymer materials with strong development potential and have been applied in many fields. This review introduces the research progress of pCDs, including the synthesis of pCDs and their applications in analytical separation science, materials science, and biomedicine.
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Affiliation(s)
| | | | - Cui Cheng
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China; (Y.L.); (T.L.); (Q.W.); (S.L.)
| | | | | | - Chun Liu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China; (Y.L.); (T.L.); (Q.W.); (S.L.)
| | - Xiao Han
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China; (Y.L.); (T.L.); (Q.W.); (S.L.)
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21
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Active packaging based on swim bladder gelatin/galangal root oil nanofibers: Preparation, properties and antibacterial application. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2020.100586] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Coban O, Aytac Z, Yildiz ZI, Uyar T. Colon targeted delivery of niclosamide from β-cyclodextrin inclusion complex incorporated electrospun Eudragit® L100 nanofibers. Colloids Surf B Biointerfaces 2020; 197:111391. [PMID: 33129100 DOI: 10.1016/j.colsurfb.2020.111391] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/03/2020] [Accepted: 09/28/2020] [Indexed: 01/06/2023]
Abstract
Electrospun nanofibers incorporated with inclusion complex (IC) of niclosamide (NIC) and hydroxypropyl-beta-cyclodextrin (HPβCD) (NIC-HPβCD-IC) was produced from pH-responsive polymer (Eudragit® L100, EUD), which disintegrates at pH values higher than 6, (EUD-NIC-HPβCD-IC-NF) for targeted delivery of NIC to the colon. Pristine EUD nanofibers (EUD-NF), only NIC loaded (EUD-NIC-NF) and physical mixture of NIC and HPβCD loaded EUD nanofibers (EUD-NIC-HPβCD-NF) were also produced as reference. SEM images revealed the bead-free and uniform morphology of nanofibers. XRD, TGA, and DSC were also performed for both NIC-HPβCD-IC and electrospun nanofibers and it was seen that there are some NIC molecules, which cannot make IC. Dissolution studies were carried out for 240 min at pH 1.2 and pH 7 simulating stomach and colon, respectively. EUD-NIC-NF released almost 53 % of NIC in 120 min, whereas EUD-NIC-HPβCD-NF (15 %) and EUD-NIC-HPβCD-IC-NF (8 %) released at most 15 % of NIC in 120 min. Then, remained NIC in the nanofibers released into the colon for the next 120 min. The slight difference in the release of NIC into stomach from EUD-NIC-HPβCD-NF and EUD-NIC-HPβCD-IC-NF might be due to the uncomplexed NIC molecules in EUD-NIC-HPβCD-IC-NF. More importantly, EUD-NIC-HPβCD-IC-NF was quite effective for preventing the release of NIC in the stomach in contrast to EUD-NIC-NF, which has already released more than half amount of NIC in 120 min. In conclusion, this study might open new areas for developing targeted delivery systems by the combination of nanofibers and CD-ICs for hydrophobic drugs such as NIC.
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Affiliation(s)
- Ozlem Coban
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, 61080, Turkey
| | - Zeynep Aytac
- Institute of Materials Science & Nanotechnology, UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
| | - Zehra Irem Yildiz
- Institute of Materials Science & Nanotechnology, UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology, UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey; Department of Fiber Science & Apparel Design, College of Human Ecology, Cornell University, Ithaca, NY, 14853, USA.
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23
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Kost B, Brzeziński M, Socka M, Baśko M, Biela T. Biocompatible Polymers Combined with Cyclodextrins: Fascinating Materials for Drug Delivery Applications. Molecules 2020; 25:E3404. [PMID: 32731371 PMCID: PMC7435941 DOI: 10.3390/molecules25153404] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022] Open
Abstract
Cyclodextrins (CD) are a group of cyclic oligosaccharides with a cavity/specific structure that enables to form inclusion complexes (IC) with a variety of molecules through non-covalent host-guest interactions. By an elegant combination of CD with biocompatible, synthetic and natural polymers, different types of universal drug delivery systems with dynamic/reversible properties have been generated. This review presents the design of nano- and micro-carriers, hydrogels, and fibres based on the polymer/CD supramolecular systems highlighting their possible biomedical applications. Application of the most prominent hydrophobic aliphatic polyesters that exhibit biodegradability, represented by polylactide and polycaprolactone, is described first. Subsequently, particular attention is focused on materials obtained from hydrophilic polyethylene oxide. Moreover, examples are also presented for grafting of CD on polysaccharides. In summary, we show the application of host-guest interactions in multi-component functional biomaterials for controlled drug delivery.
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Affiliation(s)
- Bartłomiej Kost
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (M.S.); (M.B.); (T.B.)
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (M.S.); (M.B.); (T.B.)
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Michel B, Bras J, Dufresne A, Heggset EB, Syverud K. Production and Mechanical Characterisation of TEMPO-Oxidised Cellulose Nanofibrils/β-Cyclodextrin Films and Cryogels. Molecules 2020; 25:E2381. [PMID: 32443918 PMCID: PMC7288142 DOI: 10.3390/molecules25102381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/15/2020] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
Wood-based TEMPO-oxidised cellulose nanofibrils (toCNF) are promising materials for biomedical applications. Cyclodextrins have ability to form inclusion complexes with hydrophobic molecules and are considered as a method to bring new functionalities to these materials. Water sorption and mechanical properties are also key properties for biomedical applications such as drug delivery and tissue engineering. In this work, we report the modification with β-cyclodextrin (βCD) of toCNF samples with different carboxyl contents viz. 756 ± 4 µmol/g and 1048 ± 32 µmol/g. The modification was carried out at neutral and acidic pH (2.5) to study the effect of dissociation of the carboxylic acid group. Films processed by casting/evaporation at 40 °C and cryogels processed by freeze-drying were prepared from βCD modified toCNF suspensions and compared with reference samples of unmodified toCNF. The impact of modification on water sorption and mechanical properties was assessed. It was shown that the water sorption behaviour for films is driven by adsorption, with a clear impact of the chemical makeup of the fibres (charge content, pH, and adsorption of cyclodextrin). Modified toCNF cryogels (acidic pH and addition of cyclodextrins) displayed lower mechanical properties linked to the modification of the cell wall porosity structure. Esterification between βCD and toCNF under acidic conditions was performed by freeze-drying, and such cryogels exhibited a lower decrease in mechanical properties in the swollen state. These results are promising for the development of scaffold and films with controlled mechanical properties and added value due to the ability of cyclodextrin to form an inclusion complex with active principle ingredient (API) or growth factor (GF) for biomedical applications.
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Affiliation(s)
- Bastien Michel
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | - Julien Bras
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | - Alain Dufresne
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | | | - Kristin Syverud
- RISE PFI, NO-7491 Trondheim, Norway;
- Departments of Chemical Engineering, NTNU, 7491 Trondheim, Norway
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25
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Daghrery A, Aytac Z, Dubey N, Mei L, Schwendeman A, Bottino MC. Electrospinning of dexamethasone/cyclodextrin inclusion complex polymer fibers for dental pulp therapy. Colloids Surf B Biointerfaces 2020; 191:111011. [PMID: 32334136 DOI: 10.1016/j.colsurfb.2020.111011] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 03/06/2020] [Accepted: 04/01/2020] [Indexed: 11/26/2022]
Abstract
Beta-cyclodextrin (β-CD) is an oligosaccharide commonly used to improve the aqueous solubility of lipophilic drugs (e.g., dexamethasone, DEX). Here we present the development of a drug delivery system to provide sustained release of DEX by β-CD-inclusion complex (IC) to amplify the mineralization capacity of stem cells from human-extracted deciduous teeth (SHEDs) as a potential direct pulp capping strategy. First, IC of DEX (DEX-CD-IC) was synthesized with β-CD. To confirm DEX-CD-IC complex formation, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analyses were performed. XRD data indicated that IC formation was achieved due to formation of a new crystalline structure, whereas FTIR revealed the presence of the IC from the shifting of the peaks of each component in DEX-CD-IC. Then, electrospun poly(lactic-co-glycolic acid, PLGA) fibers (PLGA/DEX-CD-IC) were processed by varying the concentration of DEX-CD-IC (5%, 10 %, and 15 %). The release of DEX from fibers was determined by ultraperformance liquid chromatography for 28 days. Thanks to the solubility enhancement of DEX by IC, electrospun PLGA/DEX-CD-IC fibers released DEX in a more sustained fashion compared to PLGA/DEX fibers. No deleterious effect was found in terms of SHEDs' proliferation when cultured with or on electrospun fibers, regardless of the IC presence. Importantly, a more pronounced odontogenic differentiation was stimulated by electrospun fibers loaded with the lowest DEX-CD-IC concentration (5%), as a result of the sustained DEX release. In sum, PLGA/DEX-CD-IC fibers have great potential in vital dental pulp therapy, owing to its sustained DEX release, cytocompatibility, and odontogenic differentiation capacity.
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Affiliation(s)
- Arwa Daghrery
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, United States; Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan, 45142, Kingdom of Saudi Arabia
| | - Zeynep Aytac
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, United States
| | - Nileshkumar Dubey
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, United States
| | - Ling Mei
- Department of Pharmaceutical Sciences, Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, United States
| | - Anna Schwendeman
- Department of Pharmaceutical Sciences, Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, United States
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, United States.
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Stent coating by electrospinning with chitosan/poly-cyclodextrin based nanofibers loaded with simvastatin for restenosis prevention. Eur J Pharm Biopharm 2020; 150:156-167. [PMID: 32179100 DOI: 10.1016/j.ejpb.2019.12.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/25/2019] [Accepted: 12/01/2019] [Indexed: 12/31/2022]
Abstract
The main cause of failure of angioplasty stenting is restenosis due to neointimal hyperplasia, a too high proliferation of smooth muscle cells (SMC). The local and sustained delivery of selective pleiotropic drugs to limit SMC proliferation seems to be the hopeful solution to minimize this post surgery complication. The aim of this study is to develop a stent covered by nanofibers (NFs) produced by electrospinning, loaded with simvastatin (SV), a drug commonly used for restenosis prevention. NFs were prepared from the electrospinning of a solution containing SV and a mixture of chitosan (cationic) and β-cyclodextrin (CD) polymer (anionic) which form together a polyelectrolyte complex that makes up the NFs matrix. First, the SV/CD interactions were studied by phase solubility diagram, DRX and DSC. The electrospinning process was then optimized to cover a self-expandable NiTiNOL stent and the mechanical resistance of the NFs sheath upon its introduction inside the delivery catheter was considered, using a crimper apparatus. The morphology, coating thicknesses and diameters of nanofibers were studied by scanning electron microscopy. The SV loading rates on the stents were controlled by the electrospinning time, and the presence of SV in the NFs was confirmed by FTIR. NFs stability in PBS pH 7.4 buffer could be improved after thermal post-treatment of NFs and in vitro release of SV in dynamic conditions demonstrated that the release profiles were influenced by the presence of CD polymer in NFs and by the thickness of the NFs sheath. Finally, a covered stent delivering 3 µg/mm2 of SV within 6 h was obtained, whose efficiency will be investigated in a further in vivo study.
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Li N, Qian Y, Zhang Z, Wang Y, Lve L, Wei C. New Patent on Electrospinning for Increasing Rutin Loading in Nanofibers. RECENT PATENTS ON NANOTECHNOLOGY 2020; 14:35-41. [PMID: 31702520 DOI: 10.2174/1872210513666191107101326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/22/2019] [Accepted: 03/07/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The electrospinning and the bubble electrospinning provide facile ways for the fabrication of functional nanofibers by incorporating rutin/hydroxypropyl-β-cyclodextrin inclusion complex (RT/HP-β-CD-IC) in Polyvinyl Alcohol (PVA). Few patents on incorporation of rutin and cyclodextrin in nanofibers has been reported. OBJECTIVE The study aimed at increasing the loading amount of rutin in the electrospun nanofibers to obtain ultraviolet resistant property. METHODS Rutin was encapsulated in the cavity of RT/HP-β-CD and formed an inclusion complex. Fourier Transform Infrared Spectroscopy (FTIR) and Differential Scanning Calorimeter (DSC) was used to verify the formation of inclusion complexes. RESULTS The results showed that the inclusion between rutin and HP-β-CD had been successfully formed. The surface morphologies of nanofibrous membranes were characterized by Scanning Electron Microscope (SEM), which indicated that adding RT/HP-β-CD inclusion complexes had little influence on the morphologies and diameters of the fibers. Ultraviolet resistant results also confirmed the inclusion complex had increased the loading amount in the final nanofibrous mats, and thus had good ultraviolet resistant properties. CONCLUSION The formed inclusion complexes had obviously enhanced the loading amount of rutin in electrospun PVA nanofibers, indicating that encapsulation of rutin in the cavity of HP-β-CD is a good way to increase the loading amount.
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Affiliation(s)
- Na Li
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yongfang Qian
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Zhen Zhang
- Sinomatech Membrane Material Company, Nanjing 211112, Jiangsu, China
| | - Ying Wang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Lihua Lve
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Chunyan Wei
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
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Celebioglu A, Uyar T. Metronidazole/Hydroxypropyl-β-Cyclodextrin inclusion complex nanofibrous webs as fast-dissolving oral drug delivery system. Int J Pharm 2019; 572:118828. [DOI: 10.1016/j.ijpharm.2019.118828] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/21/2019] [Accepted: 10/26/2019] [Indexed: 12/19/2022]
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Fernández-Villa D, Aguilar MR, Rojo L. Folic Acid Antagonists: Antimicrobial and Immunomodulating Mechanisms and Applications. Int J Mol Sci 2019; 20:E4996. [PMID: 31601031 PMCID: PMC6829374 DOI: 10.3390/ijms20204996] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/04/2019] [Accepted: 10/07/2019] [Indexed: 02/07/2023] Open
Abstract
: Bacterial, protozoan and other microbial infections share an accelerated metabolic rate. In order to ensure a proper functioning of cell replication and proteins and nucleic acids synthesis processes, folate metabolism rate is also increased in these cases. For this reason, folic acid antagonists have been used since their discovery to treat different kinds of microbial infections, taking advantage of this metabolic difference when compared with human cells. However, resistances to these compounds have emerged since then and only combined therapies are currently used in clinic. In addition, some of these compounds have been found to have an immunomodulatory behavior that allows clinicians using them as anti-inflammatory or immunosuppressive drugs. Therefore, the aim of this review is to provide an updated state-of-the-art on the use of antifolates as antibacterial and immunomodulating agents in the clinical setting, as well as to present their action mechanisms and currently investigated biomedical applications.
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Affiliation(s)
- Daniel Fernández-Villa
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas, CSIC, 28006 Madrid, Spain.
| | - Maria Rosa Aguilar
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas, CSIC, 28006 Madrid, Spain.
- Consorcio Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, 28029 Madrid, Spain.
| | - Luis Rojo
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas, CSIC, 28006 Madrid, Spain.
- Consorcio Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, 28029 Madrid, Spain.
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30
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Celebioglu A, Uyar T. Fast Dissolving Oral Drug Delivery System Based on Electrospun Nanofibrous Webs of Cyclodextrin/Ibuprofen Inclusion Complex Nanofibers. Mol Pharm 2019; 16:4387-4398. [PMID: 31436100 DOI: 10.1021/acs.molpharmaceut.9b00798] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this study, the polymer-free electrospinning was performed in order to produce cyclodextrin/ibuprofen inclusion complex nanofibers, which could have potential as the fast dissolving oral drug delivery system. Ibuprofen is a poorly water-soluble nonsteroidal anti-inflammatory drug; however, the water solubility of ibuprofen can be significantly enhanced by inclusion complexation with cyclodextrins. Here, hydroxypropyl-beta-cyclodextrin (HPβCyD) was chosen both as a nanofiber matrix and host molecule for inclusion complexation in order to enhance water solubility and fast dissolution of ibuprofen. Ibuprofen was inclusion-complexed with HPβCyD in highly concentrated aqueous solutions of HPβCyD (200%, w/v) having two different molar ratios: 1:1 and 2:1 (HPβCyD/ibuprofen). The HPβCyD/ibuprofen-IC (1:1) aqueous solution was turbid having some undissolved/uncomplexed ibuprofen, whereas HPβCyD/ibuprofen-IC (2:1) aqueous solution was homogeneous and clear, indicating that ibuprofen was totally complexed with HPβCyD and becomes water soluble. Then, both HPβCyD/ibuprofen-IC solutions (1:1 and 2:1) were electrospun into bead-free and uniform nanofibers having ∼200 nm fiber diameter. The electrospun HPβCyD/ibuprofen-IC nanofibers were obtained as nanofibrous webs having self-standing and flexible character, which is appropriate for fast dissolving oral drug delivery systems. Ibuprofen was completely preserved during the electrospinning process, and the resulting electrospun HPβCyD/ibuprofen-IC nanofibers were produced without any loss of ibuprofen by preserving the initial molar ratio of 1:1 and 2:1 (HPβCyD/ibuprofen). X-ray diffraction and differential scanning calorimetry measurements indicated the presence of some crystalline ibuprofen in HPβCyD/ibuprofen-IC (1:1) nanofibers, whereas ibuprofen was totally in the amorphous state in HPβCyD/ibuprofen-IC (2:1) nanofibers. Nonetheless, both HPβCyD/ibuprofen-IC (1:1 and 2:1) nanofibrous webs have shown very fast dissolving character when contacted with water or when wetted with artificial saliva. In brief, our results revealed that electrospun HPβCyD/ibuprofen-IC nanofibrous webs have potential as fast dissolving oral drug delivery systems.
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Affiliation(s)
- Asli Celebioglu
- Department of Fiber Science & Apparel Design, College of Human Ecology , Cornell University , Ithaca , New York 14853 , United States
| | - Tamer Uyar
- Department of Fiber Science & Apparel Design, College of Human Ecology , Cornell University , Ithaca , New York 14853 , United States
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Qiu N, Zhao X, Liu Q, Shen B, Liu J, Li X, An L. Inclusion complex of emodin with hydroxypropyl-β-cyclodextrin: Preparation, physicochemical and biological properties. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111151] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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32
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Sohail M, Mudassir, Minhas MU, Khan S, Hussain Z, de Matas M, Shah SA, Khan S, Kousar M, Ullah K. Natural and synthetic polymer-based smart biomaterials for management of ulcerative colitis: a review of recent developments and future prospects. Drug Deliv Transl Res 2019; 9:595-614. [PMID: 29611113 DOI: 10.1007/s13346-018-0512-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ulcerative colitis (UC) is an inflammatory disease of the colon that severely affects the quality of life of patients and usually responds well to anti-inflammatory agents for symptomatic relief; however, many patients need colectomy, a surgical procedure to remove whole or part of the colon. Though various types of pharmacological agents have been employed for the management of UC, the lack of effectiveness is usually predisposed to various reasons including lack of target-specific delivery of drugs and insufficient drug accumulation at the target site. To overcome these glitches, many researchers have designed and characterized various types of versatile polymeric biomaterials to achieve target-specific delivery of drugs via oral route to optimize their targeting efficiency to the colon, to improve drug accumulation at the target site, as well as to ameliorate off-target effects of chemotherapy. Therefore, the aim of this review was to summarize and critically discuss the pharmaceutical significance and therapeutic feasibility of a wide range of natural and synthetic biomaterials for efficient drug targeting to colon and rationalized treatment of UC. Among various types of biomaterials, natural and synthetic polymer-based hydrogels have shown promising targeting potential due to their innate pH responsiveness, sustained and controlled release characteristics, and microbial degradation in the colon to release the encapsulated drug moieties. These characteristic features make natural and synthetic polymer-based hydrogels superior to conventional pharmacological strategies for the management of UC.
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Affiliation(s)
- Muhammad Sohail
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan.
| | - Mudassir
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan
| | - Muhammad Usman Minhas
- Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Punjab, 63100, Pakistan
| | - Shahzeb Khan
- Department of Pharmacy, University of Malakand, Lower Dir, KPK, Pakistan
| | - Zahid Hussain
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia
| | - Marcel de Matas
- SEDA Pharmaceutical Development Services, The BioHub at Alderley Park, Cheshire, UK
| | - Syed Ahmed Shah
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan
| | - Samiullah Khan
- Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Punjab, 63100, Pakistan
| | - Mubeen Kousar
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan
| | - Kaleem Ullah
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan
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Ince Yardimci A, Baskan O, Yilmaz S, Mese G, Ozcivici E, Selamet Y. Osteogenic differentiation of mesenchymal stem cells on random and aligned PAN/PPy nanofibrous scaffolds. J Biomater Appl 2019; 34:640-650. [DOI: 10.1177/0885328219865068] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Atike Ince Yardimci
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Oznur Baskan
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Selahattin Yilmaz
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Gulistan Mese
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Engin Ozcivici
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Yusuf Selamet
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
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34
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Wang L, Kang Y, Xing CY, Guo K, Zhang XQ, Ding LS, Zhang S, Li BJ. β-Cyclodextrin based air filter for high-efficiency filtration of pollution sources. JOURNAL OF HAZARDOUS MATERIALS 2019; 373:197-203. [PMID: 30921570 DOI: 10.1016/j.jhazmat.2019.03.087] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 06/09/2023]
Abstract
Airborne particulate matter (PM) pollution has become a serious environmental problem. Thus, there is a need for the development of air filters with satisfactory overall performance. In this paper, we develop a kind of β-cyclodextrin (β-CD) based air filter with high strength, which has not only high filtration efficiency (about 99%) but also good air permeability (the pressure drop is only 45Pa). Especially after long-term application, the pression drop of β-cyclodextrin based was less than half of the commercial air-filter. Additionally, the material can capture the toxic gasous chemicals (e.g. formaldehyde and SO2). The introduction of β-CD is supposed to be the key factor for improvement of air filter.
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Affiliation(s)
- Lu Wang
- College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China
| | - Yang Kang
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China
| | - Cheng-Yuan Xing
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China
| | - Kun Guo
- College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China
| | - Xiao-Qin Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University Sichuan University, Chengdu, 610065, China
| | - Li-Sheng Ding
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China
| | - Sheng Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University Sichuan University, Chengdu, 610065, China.
| | - Bang-Jing Li
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China.
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35
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Aytac Z, Ipek S, Erol I, Durgun E, Uyar T. Fast-dissolving electrospun gelatin nanofibers encapsulating ciprofloxacin/cyclodextrin inclusion complex. Colloids Surf B Biointerfaces 2019; 178:129-136. [DOI: 10.1016/j.colsurfb.2019.02.059] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/02/2019] [Accepted: 02/28/2019] [Indexed: 11/24/2022]
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36
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Tang B, Shan J, Yuan T, Xiao Y, Liang J, Fan Y, Zhang X. Hydroxypropylcellulose enhanced high viscosity endoscopic mucosal dissection intraoperative chitosan thermosensitive hydrogel. Carbohydr Polym 2019; 209:198-206. [DOI: 10.1016/j.carbpol.2018.12.103] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/27/2018] [Accepted: 12/31/2018] [Indexed: 01/15/2023]
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37
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Menezes PDP, Andrade TDA, Frank LA, de Souza EPBSS, Trindade GDGG, Trindade IAS, Serafini MR, Guterres SS, Araújo AADS. Advances of nanosystems containing cyclodextrins and their applications in pharmaceuticals. Int J Pharm 2019; 559:312-328. [PMID: 30703500 DOI: 10.1016/j.ijpharm.2019.01.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 10/27/2022]
Abstract
For many years, researchers have worked with supramolecular structures involving inclusion complexes with cyclodextrins. These studies have resulted in new commercially available drugs which have been of great benefit. More recently, studies using nanoparticles, including nanosystems containing cyclodextrins, have become a focus of academic research due to the versatility of the systems and their remarkable therapeutic potential. This review focuses on studies published between 2002 and 2018 involving nanosystems containing cyclodextrins. We consider the type of nanosystems, their importance in a health context, the physicochemical techniques used to show the quality of these systems and their potential for the development of novel pharmaceutical formulations. These have been developed in recent studies which have mainly been focusing on basic science with no clinical trials as yet being performed. This is important to note because it means that the studies do not include any toxicity tests. Despite this limitation, the characterization assays performed suggest that these new formulations may have therapeutic potential. However, more research is required to assess the efficacy and safety of these nanosystems.
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Affiliation(s)
| | | | - Luiza Abrahão Frank
- College of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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38
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Topuz F, Uyar T. Electrospinning of Cyclodextrin Functional Nanofibers for Drug Delivery Applications. Pharmaceutics 2018; 11:E6. [PMID: 30586876 PMCID: PMC6358759 DOI: 10.3390/pharmaceutics11010006] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/17/2018] [Accepted: 08/24/2018] [Indexed: 12/18/2022] Open
Abstract
Electrospun nanofibers have sparked tremendous attention in drug delivery since they can offer high specific surface area, tailored release of drugs, controlled surface chemistry for preferred protein adsorption, and tunable porosity. Several functional motifs were incorporated into electrospun nanofibers to greatly expand their drug loading capacity or to provide the sustained release of the embedded drug molecules. In this regard, cyclodextrins (CyD) are considered as ideal drug carrier molecules as they are natural, edible, and biocompatible compounds with a truncated cone-shape with a relatively hydrophobic cavity interior for complexation with hydrophobic drugs and a hydrophilic exterior to increase the water-solubility of drugs. Further, the formation of CyD-drug inclusion complexes can protect drug molecules from physiological degradation, or elimination and thus increases the stability and bioavailability of drugs, of which the release takes place with time, accompanied by fiber degradation. In this review, we summarize studies related to CyD-functional electrospun nanofibers for drug delivery applications. The review begins with an introductory description of electrospinning; the structure, properties, and toxicology of CyD; and CyD-drug complexation. Thereafter, the release of various drug molecules from CyD-functional electrospun nanofibers is provided in subsequent sections. The review concludes with a summary and outlook on material strategies.
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Affiliation(s)
- Fuat Topuz
- Institute of Materials Science & Nanotechnology, UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey.
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology, UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey.
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Iram F, Massey S, Iqbal MS, Ward DG. Structural investigation of hemicelluloses from Plantago ovata, Mimosa pudica and Lallemantia royleana by MALDI-ToF mass spectrometry. J Carbohydr Chem 2018. [DOI: 10.1080/07328303.2018.1487973] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Fozia Iram
- Department of Chemistry, LCW University, Lahore, Pakistan
| | - Shazma Massey
- Department of Chemistry, Forman Christian College, Lahore, Pakistan
| | - Mohammad S Iqbal
- Department of Chemistry, Forman Christian College, Lahore, Pakistan
| | - Douglas G. Ward
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
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40
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Yu DG, Li JJ, Williams GR, Zhao M. Electrospun amorphous solid dispersions of poorly water-soluble drugs: A review. J Control Release 2018; 292:91-110. [PMID: 30118788 DOI: 10.1016/j.jconrel.2018.08.016] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/07/2018] [Accepted: 08/09/2018] [Indexed: 12/20/2022]
Abstract
The development of oral dosage forms for poorly water-soluble active pharmaceutical ingredients (APIs) is a persistent challenge. A range of methods has been explored to address this issue, and amorphous solid dispersions (ASDs) have received increasing attention. ASDs are typically prepared by starting with a liquid precursor (a solution or melt) and applying energy for solidification. Many techniques can be used, with the emergence of electrospinning as a potent option in recent years. This method uses electrical energy to induce changes from liquid to solid. Through the direct applications of electrical energy, electrospinning can generate nanofiber-based ASDs from drug-loaded solutions, melts and melt-solutions. The technique can also be combined with other approaches using the application of mechanical, thermal or other energy sources. Electrospinning has numerous advantages over other approaches to produce ASDs. These advantages include extremely rapid drying speeds, ease of implentation, compatibility with a wide range of active ingredients (including those which are thermally labile), and the generation of products with large surface areas and high porosity. Furthermore, this technique exhibits the potential to create so-called 'fifth-generation' ASDs with nanostructured architectures, such as core/shell or Janus systems and their combinations. These advanced systems can improve dissolution behaviour and provide programmable drug release profiles. Additionally, the fiber components and their spatial distributions can be precisely controlled. Electrospun fiber-based ASDs can maintain an incorporated active ingredient in the amorphous physical form for prolonged periods of time because of their homogeneous drug distribution within the polymer matrix (typically they comprise solid solutions), and ability to inhibit molecular motion. These ASDs can be utilised to generate oral dosage forms for poorly water-soluble drugs, resulting in linear or multiple-phase release of one or more APIs. Electrospun ASDs can also be exploited as templates for manipulating molecular self-assembly, offering a bridge between ASDs and other types of dosage forms. This review addresses the development, advantages and pharmaceutical applications of electrospinning for producing polymeric ASDs. Material preparation and analysis procedures are considered. The mechanisms through which performance has been improved are also discussed.
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Affiliation(s)
- Deng-Guang Yu
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China
| | - Jiao-Jiao Li
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Min Zhao
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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41
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42
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Cova TF, Murtinho D, Pais AACC, Valente AJM. Combining Cellulose and Cyclodextrins: Fascinating Designs for Materials and Pharmaceutics. Front Chem 2018; 6:271. [PMID: 30027091 PMCID: PMC6041395 DOI: 10.3389/fchem.2018.00271] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/18/2018] [Indexed: 12/15/2022] Open
Abstract
Cellulose and cyclodextrins possess unique properties that can be tailored, combined, and used in a considerable number of applications, including textiles, coatings, sensors, and drug delivery systems. Successfully structuring and applying cellulose and cyclodextrins conjugates requires a deep understanding of the relation between structural, and soft matter behavior, materials, energy, and function. This review focuses on the key advances in developing materials based on these conjugates. Relevant aspects regarding structural variations, methods of synthesis, processing and functionalization, and corresponding supramolecular properties are presented. The use of cellulose/cyclodextrin conjugates as intelligent platforms for applications in materials science and pharmaceutical technology is also outlined, focusing on drug delivery, textiles, and sensors.
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Affiliation(s)
| | | | | | - Artur J. M. Valente
- Coimbra Cemistry Centre, CQC, Department of Chemistry, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
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43
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Fast and non-destructive determination of active pharmaceutical ingredient concentration in an electrospun nanofiber patch using infrared spectroscopy. Microchem J 2018. [DOI: 10.1016/j.microc.2018.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Ozcan S, Kaner P, Thomas D, Cebe P, Asatekin A. Hydrophobic Antifouling Electrospun Mats from Zwitterionic Amphiphilic Copolymers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18300-18309. [PMID: 29658698 DOI: 10.1021/acsami.8b03268] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A porous material that is both hydrophobic and fouling-resistant is needed in many applications, such as water purification by membrane distillation. In this work, we take a novel approach to fabricating such membranes. Using the zwitterionic amphiphilic copolymer poly(trifluoroethyl methacrylate- random-sulfobetaine methacrylate), we electrospin nonwoven, porous membranes that combine high hydrophobicity with resistance to protein adsorption. By changing the electrospinning parameters and the solution composition, membranes can be prepared with a wide range of fiber morphologies including beaded, bead-free, wrinkly, and ribbonlike fibers, with diameters ranging between ∼150 nm and 1.5 μm. The addition of LiCl to the spinning solution not only helps control the fiber morphology but also increases the segregation of zwitterionic groups on the membrane surface. The resultant electrospun membranes are highly porous and very hydrophobic, yet resist the adsorption of proteins and retain a high contact angle (∼140°) even after exposure to a protein solution. This makes these materials promising candidates for the membrane distillation of contaminated wastewater streams and as self-cleaning materials.
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Affiliation(s)
- Sefika Ozcan
- Department of Chemical and Biological Engineering , Tufts University , 4 Colby Street , Medford , Massachusetts 02155 , United States
- Department of Polymer Science and Technology , Middle East Technical University , 06800 Ankara , Turkey
| | - Papatya Kaner
- Department of Chemical and Biological Engineering , Tufts University , 4 Colby Street , Medford , Massachusetts 02155 , United States
| | - David Thomas
- Department of Physics and Astronomy , Tufts University , 574 Boston Avenue , Medford , Massachusetts 02155 , United States
| | - Peggy Cebe
- Department of Physics and Astronomy , Tufts University , 574 Boston Avenue , Medford , Massachusetts 02155 , United States
| | - Ayse Asatekin
- Department of Chemical and Biological Engineering , Tufts University , 4 Colby Street , Medford , Massachusetts 02155 , United States
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Narayanan G, Shen J, Boy R, Gupta BS, Tonelli AE. Aliphatic Polyester Nanofibers Functionalized with Cyclodextrins and Cyclodextrin-Guest Inclusion Complexes. Polymers (Basel) 2018; 10:E428. [PMID: 30966463 PMCID: PMC6415270 DOI: 10.3390/polym10040428] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/27/2018] [Accepted: 04/04/2018] [Indexed: 12/20/2022] Open
Abstract
The fabrication of nanofibers by electrospinning has gained popularity in the past two decades; however, only in this decade, have polymeric nanofibers been functionalized using cyclodextrins (CDs) or their inclusion complexes (ICs). By combining electrospinning of polymers with free CDs, nanofibers can be fabricated that are capable of capturing small molecules, such as wound odors or environmental toxins in water and air. Likewise, combining polymers with cyclodextrin-inclusion complexes (CD-ICs), has shown promise in enhancing or controlling the delivery of small molecule guests, by minor tweaking in the technique utilized in fabricating these nanofibers, for example, by forming core⁻shell or multilayered structures and conventional electrospinning, for controlled and rapid delivery, respectively. In addition to small molecule delivery, the thermomechanical properties of the polymers can be significantly improved, as our group has shown recently, by adding non-stoichiometric inclusion complexes to the polymeric nanofibers. We recently reported and thoroughly characterized the fabrication of polypseudorotaxane (PpR) nanofibers without a polymeric carrier. These PpR nanofibers show unusual rheological and thermomechanical properties, even when the coverage of those polymer chains is relatively sparse (~3%). A key advantage of these PpR nanofibers is the presence of relatively stable hydroxyl groups on the outer surface of the nanofibers, which can subsequently be taken advantage of for bioconjugation, making them suitable for biomedical applications. Although the number of studies in this area is limited, initial results suggest significant potential for bone tissue engineering, and with additional bioconjugation in other areas of tissue engineering. In addition, the behaviors and uses of aliphatic polyester nanofibers functionalized with CDs and CD-ICs are briefly described and summarized. Based on these observations, we attempt to draw conclusions for each of these combinations, and the relationships that exist between their presence and the functional behaviors of their nanofibers.
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Affiliation(s)
- Ganesh Narayanan
- Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC 27695, USA.
| | - Jialong Shen
- Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC 27695, USA.
| | - Ramiz Boy
- Department of Textile Engineering, Namık Kemal University, Corlu/Tekirdag 59860, Turkey.
| | - Bhupender S Gupta
- Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC 27695, USA.
- Department of Textile Engineering Chemistry and Science, North Carolina State University, Raleigh, NC 27695, USA.
| | - Alan E Tonelli
- Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC 27695, USA.
- Department of Textile Engineering Chemistry and Science, North Carolina State University, Raleigh, NC 27695, USA.
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Li J, Han L, Liu S, He S, Cao Y, Xie J, Jia L. Removal of indoxyl sulfate by water-soluble poly-cyclodextrins in dialysis. Colloids Surf B Biointerfaces 2018; 164:406-413. [DOI: 10.1016/j.colsurfb.2018.01.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 01/05/2018] [Accepted: 01/27/2018] [Indexed: 10/18/2022]
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Celebioglu A, Kayaci-Senirmak F, İpek S, Durgun E, Uyar T. Polymer-free nanofibers from vanillin/cyclodextrin inclusion complexes: high thermal stability, enhanced solubility and antioxidant property. Food Funct 2018; 7:3141-53. [PMID: 27353870 DOI: 10.1039/c6fo00569a] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vanillin/cyclodextrin inclusion complex nanofibers (vanillin/CD-IC NFs) were successfully obtained from three modified CD types (HPβCD, HPγCD and MβCD) in three different solvent systems (water, DMF and DMAc) via an electrospinning technique without using a carrier polymeric matrix. Vanillin/CD-IC NFs with uniform and bead-free fiber morphology were successfully produced and their free-standing nanofibrous webs were obtained. The polymer-free CD/vanillin-IC-NFs allow us to accomplish a much higher vanillin loading (∼12%, w/w) when compared to electrospun polymeric nanofibers containing CD/vanillin-IC (∼5%, w/w). Vanillin has a volatile nature yet, after electrospinning, a significant amount of vanillin was preserved due to complex formation depending on the CD types. Maximum preservation of vanillin was observed for vanillin/MβCD-IC NFs which is up to ∼85% w/w, besides, a considerable amount of vanillin (∼75% w/w) was also preserved for vanillin/HPβCD-IC NFs and vanillin/HPγCD-IC NFs. Phase solubility studies suggested a 1 : 1 molar complexation tendency between guest vanillin and host CD molecules. Molecular modelling studies and experimental findings revealed that vanillin : CD complexation was strongest for MβCD when compared to HPβCD and HPγCD in vanillin/CD-IC NFs. For vanillin/CD-IC NFs, water solubility and the antioxidant property of vanillin was improved significantly owing to inclusion complexation. In brief, polymer-free vanillin/CD-IC NFs are capable of incorporating a much higher loading of vanillin and effectively preserve volatile vanillin. Hence, encapsulation of volatile active agents such as flavor, fragrance and essential oils in electrospun polymer-free CD-IC NFs may have potential for food related applications by integrating the particularly large surface area of NFs with the non-toxic nature of CD and inclusion complexation benefits, such as high temperature stability, improved water solubility and an enhanced antioxidant property, etc.
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Affiliation(s)
- Asli Celebioglu
- Institute of Materials Science & Nanotechnology, Bilkent University, Ankara, 06800, Turkey. and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
| | - Fatma Kayaci-Senirmak
- Institute of Materials Science & Nanotechnology, Bilkent University, Ankara, 06800, Turkey. and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
| | - Semran İpek
- UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey and Department of Engineering Physics, Istanbul Medeniyet University, Istanbul, 34700, Turkey
| | - Engin Durgun
- Institute of Materials Science & Nanotechnology, Bilkent University, Ankara, 06800, Turkey. and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology, Bilkent University, Ankara, 06800, Turkey. and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
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Crini G, Fourmentin S, Fenyvesi É, Torri G, Fourmentin M, Morin-Crini N. Fundamentals and Applications of Cyclodextrins. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2018. [DOI: 10.1007/978-3-319-76159-6_1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Baghel S, Cathcart H, O'Reilly NJ. Understanding the generation and maintenance of supersaturation during the dissolution of amorphous solid dispersions using modulated DSC and 1H NMR. Int J Pharm 2017; 536:414-425. [PMID: 29183857 DOI: 10.1016/j.ijpharm.2017.11.056] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/23/2017] [Accepted: 11/24/2017] [Indexed: 11/28/2022]
Abstract
In this study, the dissolution behaviour of dipyridamole (DPM) and cinnarizine (CNZ) spray-dried amorphous solid dispersions (ASDs) using polyvinyl pyrrolidone (PVP) and polyacrylic acid (PAA) as a carrier matrix were evaluated and compared. The drug concentrations achieved from the dissolution of PVP and PAA solid dispersions were significantly greater than the equilibrium solubility of crystalline DPM and CNZ in phosphate buffer pH 6.8 (PBS 6.8). The maximum drug concentration achieved by dissolution of PVP and PAA solid dispersions did not exceed the theoretically calculated apparent solubility of amorphous DPM and CNZ. However, the degree of supersaturation of DPM and CNZ increased considerably as the polymer weight fraction within the solid dispersion increased. In addition, the supersaturation profile of DPM and CNZ were studied in the presence and absence of the polymers. PAA was found to maintain a higher level of supersaturation compared to PVP. The enhanced drug solution concentration following dissolution of ASDs can be attributed to the reduced crystal growth rates of DPM and CNZ at an equivalent supersaturation. We have also shown that, for drugs having high crystallization tendency and weak drug-polymer interaction, the feasible way to increase dissolution might be increase the polymer weight fraction in the ASD. Solution 1H NMR spectra were used to understand dissolution mechanism and to identify drug-polymer interaction. The change in electron densities of proton attached to different groups in DPM and CNZ suggested drug-polymer interaction in solution. The relative intensities of peak shift and nature of interaction between drug and polymer in different systems are different. These different effects suggest that DPM and CNZ interacts in a different way with PVP and PAA in solution which goes some way towards explaining the different polymeric effect, particularly in terms of inhibition of drug recrystallization and dissolution of DPM and CNZ ASDs. These results established that the different drug/polymer interactions in the solid state and in solution give rise to the variation in dissolution profile observed for different systems.
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Affiliation(s)
- Shrawan Baghel
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC), Waterford Institute of Technology, Cork Road, Waterford, Ireland.
| | - Helen Cathcart
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC), Waterford Institute of Technology, Cork Road, Waterford, Ireland
| | - Niall J O'Reilly
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC), Waterford Institute of Technology, Cork Road, Waterford, Ireland
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Saha S, Roy A, Roy MN. Mechanistic Investigation of Inclusion Complexes of a Sulfa Drug with α- and β-Cyclodextrins. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02619] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Subhadeep Saha
- Department of Chemistry, University of North Bengal, Darjeeling-734013, India
| | - Aditi Roy
- Department of Chemistry, University of North Bengal, Darjeeling-734013, India
| | - Mahendra Nath Roy
- Department of Chemistry, University of North Bengal, Darjeeling-734013, India
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