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Šić E, Rohrer J, Ricohermoso EI, Albe K, Ionescu E, Riedel R, Breitzke H, Gutmann T, Buntkowsky G. SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations. CHEMSUSCHEM 2023:e202202241. [PMID: 36892993 DOI: 10.1002/cssc.202202241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Polymer-derived silicon oxycarbide ceramics (SiCO) have been considered as potential anode materials for lithium- and sodium-ion batteries. To understand their electrochemical storage behavior, detailed insights into structural sites present in SiCO are required. In this work, the study of local structures in SiCO ceramics containing different amounts of carbon is presented. 13 C and 29 Si solid-state MAS NMR spectroscopy combined with DFT calculations, atomistic modeling, and EPR investigations, suggest significant changes in the local structures of SiCO ceramics even by small changes in the material composition. The provided findings on SiCO structures will contribute to the research field of polymer-derived ceramics, especially to understand electrochemical storage processes of alkali metal/ions such as Na/Na+ inside such networks in the future.
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Affiliation(s)
- Edina Šić
- Eduard Zintl Institute for Inorganic and Physical Chemistry, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Jochen Rohrer
- Department of Materials and Earth Sciences, Materials Modelling Division, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Emmanuel Iii Ricohermoso
- Department of Materials and Earth Sciences, Group of Dispersive Solids, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Karsten Albe
- Department of Materials and Earth Sciences, Materials Modelling Division, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Emmanuel Ionescu
- Department of Materials and Earth Sciences, Group of Dispersive Solids, Technical University of Darmstadt, 64287, Darmstadt, Germany
- Fraunhofer IWKS, Department of Digitalization of Resources, Brentanostr. 2a, 63755, Alzenau, Germany
| | - Ralf Riedel
- Department of Materials and Earth Sciences, Group of Dispersive Solids, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Hergen Breitzke
- Eduard Zintl Institute for Inorganic and Physical Chemistry, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Torsten Gutmann
- Eduard Zintl Institute for Inorganic and Physical Chemistry, Technical University of Darmstadt, 64287, Darmstadt, Germany
| | - Gerd Buntkowsky
- Eduard Zintl Institute for Inorganic and Physical Chemistry, Technical University of Darmstadt, 64287, Darmstadt, Germany
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2
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Maksoud FJ, Velázquez de la Paz MF, Hann AJ, Thanarak J, Reilly GC, Claeyssens F, Green NH, Zhang YS. Porous biomaterials for tissue engineering: a review. J Mater Chem B 2022; 10:8111-8165. [PMID: 36205119 DOI: 10.1039/d1tb02628c] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The field of biomaterials has grown rapidly over the past decades. Within this field, porous biomaterials have played a remarkable role in: (i) enabling the manufacture of complex three-dimensional structures; (ii) recreating mechanical properties close to those of the host tissues; (iii) facilitating interconnected structures for the transport of macromolecules and cells; and (iv) behaving as biocompatible inserts, tailored to either interact or not with the host body. This review outlines a brief history of the development of biomaterials, before discussing current materials proposed for use as porous biomaterials and exploring the state-of-the-art in their manufacture. The wide clinical applications of these materials are extensively discussed, drawing on specific examples of how the porous features of such biomaterials impact their behaviours, as well as the advantages and challenges faced, for each class of the materials.
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Affiliation(s)
- Fouad Junior Maksoud
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
| | - María Fernanda Velázquez de la Paz
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Alice J Hann
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Jeerawan Thanarak
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Gwendolen C Reilly
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Frederik Claeyssens
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Nicola H Green
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
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Martín-Illana A, Chinarro E, Cazorla-Luna R, Notario-Perez F, Veiga-Ochoa MD, Rubio J, Tamayo A. Optimized hydration dynamics in mucoadhesive xanthan-based trilayer vaginal films for the controlled release of tenofovir. Carbohydr Polym 2022; 278:118958. [PMID: 34973774 DOI: 10.1016/j.carbpol.2021.118958] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/29/2021] [Accepted: 11/28/2021] [Indexed: 11/02/2022]
Abstract
Karaya gum, pectin and xanthan gum have been tested as candidates for manufacturing mucoadhesive trilayer films containing ethylcellulose and chitosan for the vaginal administration of the antiviral Tenofovir (TFV). The swelling profile correlated with the amount of mobile dipoles determined by impedance spectroscopy allows the determination of the hydration dynamics of these films. The fast water penetration has been demonstrated to favor the formation of polyelectrolyte complexes (PEC) via hydrogen or ionic bonds which would favor a controlled release. The incorporation of an inorganic drug release regulator induces the weakness of the polymeric chains thus enhancing the ionic mobility via the formation of low molecular weight PECs in films manufactured with karaya gum. Due to the different mechanical properties of the individual components, pectin-based films failed for a potential pharmaceutical formulation. However, mucoadhesive trilayer films produced with xanthan gum have demonstrated a moderate swelling, improved wettability and a controlled release of TFV.
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Affiliation(s)
- Araceli Martín-Illana
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain
| | - Eva Chinarro
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain
| | - Raul Cazorla-Luna
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain
| | - Fernando Notario-Perez
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain
| | - M D Veiga-Ochoa
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain
| | - Juan Rubio
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain
| | - Aitana Tamayo
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain.
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Au-O-MWCNTs and TiO2-O-MWCNTs as Efficient Nanocarriers for Dexamethasone: Adsorption Isotherms and Kinetic Studies. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1155/2021/2040363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this research, the fabrication of drug delivery systems based on oxidized multiwall carbon nanotubes (O-MWCNTs) was studied. Herein, TiO2 and Au were conjugated with O-MWCNTs to prepare efficient nanocarriers for dexamethasone (dex). The samples were characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). In addition, dex loading was studied using adsorption isotherms including Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich. The results show that dex adsorption agreed well with the Freundlich isotherm. Increasing the TiO2 to O-MWCNT ratio from (1 : 4) to (1 : 2) can improve the adsorption capacity from
to 320
. The increasing Au amount increases the adsorption capacity from
(SA1) to maximum
(SA6). The maximum equilibrium binding energy
was obtained for SA2, and SA7 shows high binding strength between dex and the nanoadsorbent. Carbon nanotubes (CNTs) show good affinity with high loading capabilities for dexamethasone adsorption. The synthesized TiO2-O-MWCNTs:1/2 with the maximum removal percent (80%) was proposed as an appropriate nanocarrier for dexamethasone. Pseudo-first order, pseudo-second order, Elovich, and intraparticle diffusion models were investigated for all synthesized drug nanocarriers. According to regression coefficients, experimental data are in good agreement with the pseudo-second order model for all adsorbents except O-MWCNT/CTAB. Experimental results revealed that the Elovich model could account for the O-MWCNT/CTAB adsorbent.
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Whittle E, Martín-Illana A, Cazorla-Luna R, Notario-Perez F, Veiga-Ochoa MD, Rubio J, Tamayo A. Silane Modification of Mesoporous Materials for the Optimization of Antiviral Drug Adsorption and Release Capabilities in Vaginal Media. Pharmaceutics 2021; 13:1416. [PMID: 34575491 PMCID: PMC8468001 DOI: 10.3390/pharmaceutics13091416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/26/2021] [Accepted: 08/31/2021] [Indexed: 11/29/2022] Open
Abstract
Three different functionalities have been incorporated into mesoporous materials by means of a coupling reaction with the siloxanes 3-glycidoxypropyl-trimethoxysilane (GLYMO), 3-methacryloxypropyl-trimethoxysilane (MEMO), and 3-mercaptopropyl-trimethoxysilane (MPTMS). The disposition of the different functional groups, as well as the interaction mechanism, with the mesoporous substrate has been identified. The amount of the antiviral drug acyclovir (ACV) adsorbed depends not only on the available surface area but also on the chemical or physicochemical interactions between functionalities. The drug adsorption isotherm of the materials functionalized with GLYMO and MPTMS follow mechanisms dependent on the different surface coverage and the possibilities to establish physicochemical interactions between the drug molecule and the functionalities. On the contrary, when functionalizing with MEMO, the dominant adsorption mechanism is characteristic of chemically bonded adsorbates. The ACV release kinetics is best fitted to the Weibull model in all the functionalized materials. When the MTPMS is used as a functionalizing agent, the drug diffusion occurs at low kinetics and homogeneously along the mesoporous channels.
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Affiliation(s)
- Elena Whittle
- Faculty of Chemistry, Universidad Complutense de Madrid, Av. Complutense, s/n, 28040 Madrid, Spain;
| | - Araceli Martín-Illana
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - Raul Cazorla-Luna
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - Fernando Notario-Perez
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - María Dolores Veiga-Ochoa
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - Juan Rubio
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain;
| | - Aitana Tamayo
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain;
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Zhu W, Fan W, Zhang X, Gao M. Sustained-Release Solid Dispersion of High-Melting-Point and Insoluble Resveratrol Prepared through Hot Melt Extrusion to Improve Its Solubility and Bioavailability. Molecules 2021; 26:4982. [PMID: 34443569 PMCID: PMC8400122 DOI: 10.3390/molecules26164982] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/02/2021] [Accepted: 08/11/2021] [Indexed: 11/16/2022] Open
Abstract
This study aimed to prepare a sustained-release solid dispersion of poorly water-soluble resveratrol (RES) with high melting point in a single hot melt extrusion step. A hydrophobic-hydrophilic polymeric blend (Eudragit RS and PEG6000) was used to control the release of RES. With the dispersive mixing and high shear forces of hot melt extrusion, the thermodynamic properties and dispersion of RES were changed to improve its solubility. The effects of the formulation were investigated through univariate analysis to optimize the preparation of the sustained-release solid dispersion. In vitro and in vivo studies were performed to evaluate the prepared RES/RS/PEG6000 sustained-release solid dispersion. The physical state of the solid dispersion was characterized using differential scanning calorimetry and X-ray diffraction. Surface properties of the dispersion were visualized using scanning electron microscopy, and the chemical interaction between RES and excipients was detected through Fourier-transform infrared spectroscopy. Results suggested that the optimized sustained-release solid dispersion was obtained when the mass ratio of RES-polymeric blend was 1:5, the ratio of PEG6000 was 35%, the barrel temperature was 170 °C, and the screw speed was 80 rpm. In vitro studies demonstrated that the solid dispersion showed a good sustained release effect. The cumulative release of RES reached 82.42% until 12 h and was fit by the Weibull model. In addition, the saturated solubility was 2.28 times higher than that of the bulk RES. In vitro studies demonstrated that the half-life increased from 3.78 to 7.09 h, and the bioavailability improved to 140.38%. The crystalline RES was transformed into the amorphous one, and RES was highly dispersed in the polymeric blend matrix.
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Affiliation(s)
- Wenjing Zhu
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (W.Z.); (X.Z.); (M.G.)
| | - Wenling Fan
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (W.Z.); (X.Z.); (M.G.)
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaotong Zhang
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (W.Z.); (X.Z.); (M.G.)
| | - Meiqi Gao
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (W.Z.); (X.Z.); (M.G.)
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Francis A. Biological evaluation of preceramic organosilicon polymers for various healthcare and biomedical engineering applications: A review. J Biomed Mater Res B Appl Biomater 2020; 109:744-764. [PMID: 33075186 DOI: 10.1002/jbm.b.34740] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/17/2020] [Accepted: 09/30/2020] [Indexed: 01/17/2023]
Abstract
Preceramic organosilicon materials combining the properties of a polymer and an inorganic ceramic phase are of great interest to scientists working in biomedical sciences. The interdisciplinary nature of organosilicon polymers and their molecular structures, as well as their diversity of applications have resulted in an unprecedented range of devices and synergies cutting across unrelated fields in medicine and engineering. Organosilicon materials, especially the polysiloxanes, have a long history of industrial and medical uses in many versatile aspects as they can be easily fabricated into complex-shaped products using a wide variety of computer-aided or polymer manufacturing techniques. Thus far, intensive research activities have been mainly devoted to the processing of preceramic organosilicon polymers toward magnetic, electronic, structural, optical, and not biological applications. Herein we present innovative research studies and recent developments of preceramic organosilicon polymers at the interface with biological systems, displaying the versatility and multi-functionality of these materials. This article reviews recent research on preceramic organosilicon polymers and corresponding composites for bone tissue regeneration and medical engineering implants, focusing on three particular topics: (a) surface modifications to create tailorable and bioactive surfaces with high corrosion resistance and improved biological properties; (b) biological evaluations for specific applications, such as in glaucoma drainage devices, orthopedic implants, bone tissue regeneration, wound dressing, drug delivery systems, and antibacterial activity; and (c) in vitro and in vivo studies for cytotoxicity, genotoxicity, and cell viability. The interest in organosilicon materials stems from the fact that a vast array of these materials have complementary attributes that, when integrated appropriately with functional fillers and carefully controlled conditions, could be exploited either as polymeric Si-based composites or as organosilicon polymer-derived Si-based ceramic composites to tailor and optimize properties of the Si-based materials for various proposed applications.
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Affiliation(s)
- Adel Francis
- Department of Advanced Materials, Central Metallurgical R & D Institute (CMRDI), Helwan, Cairo, Egypt
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8
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Martin-Illana A, Cazorla-Luna R, Notario-Pérez F, Ruiz-Caro R, Bedoya LM, Veiga-Ochoa MD, Rubio J, Tamayo A. Amino Functionalized Micro-Mesoporous Hybrid Particles for the Sustained Release of the Antiretroviral Drug Tenofovir. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3494. [PMID: 32784712 PMCID: PMC7476006 DOI: 10.3390/ma13163494] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023]
Abstract
The sustained release of an antiretroviral agent to women mucosa has been proved as an excellent strategy to reduce the sexual transmission of HIV. Hybrid micro-mesoporous particles have been synthesized and functionalized with a silane coupling agent followed by loading the antiretroviral tenofovir. It has been observed that the disposition of the silane molecule on the surface of the particles determines the interaction mechanism with the antiretroviral molecule loaded independently on the surface area of the particles. In this sense, available and free amino groups are required to achieve a smart pH-responsive material, a condition that is only achieved in those materials containing a silane chemisorbed monolayer. Moreover, the modulation of the release kinetics attributed to the presence of the silane monolayer covering the mesopores has been confirmed by fitting the releasing curves to the first order and Weibull models. The developed micro-mesoporous particles have been demonstrated to be excellent smart-release vehicles for antiviral agents and can be safely used in polymer mucoadhesive vaginal gels.
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Affiliation(s)
- Araceli Martin-Illana
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (R.R.-C.); (M.D.V.-O.)
| | - Raul Cazorla-Luna
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (R.R.-C.); (M.D.V.-O.)
| | - Fernando Notario-Pérez
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (R.R.-C.); (M.D.V.-O.)
| | - Roberto Ruiz-Caro
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (R.R.-C.); (M.D.V.-O.)
| | - Luis Miguel Bedoya
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain;
| | - Maria Dolores Veiga-Ochoa
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (R.R.-C.); (M.D.V.-O.)
| | - Juan Rubio
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain;
| | - Aitana Tamayo
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain;
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9
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Optimization of the formation of coatings based on SiAlOC glasses via structural, microstructural and electrochemical studies. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Cruz MV, Jacobowski AC, Macedo ML, Batista KA, Fernandes KF. Immobilization of antimicrobial trypsin inhibitors onto cashew gum polysaccharide/PVA films. Int J Biol Macromol 2019; 127:433-439. [DOI: 10.1016/j.ijbiomac.2019.01.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/31/2018] [Accepted: 01/03/2019] [Indexed: 12/14/2022]
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11
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Das M, Solanki A, Joshi A, Devkar R, Seshadri S, Thakore S. β-cyclodextrin based dual-responsive multifunctional nanotheranostics for cancer cell targeting and dual drug delivery. Carbohydr Polym 2019; 206:694-705. [DOI: 10.1016/j.carbpol.2018.11.049] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/22/2018] [Accepted: 11/16/2018] [Indexed: 10/27/2022]
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12
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Notario-Pérez F, Martín-Illana A, Cazorla-Luna R, Ruiz-Caro R, Peña J, Veiga MD. Improvement of Tenofovir vaginal release from hydrophilic matrices through drug granulation with hydrophobic polymers. Eur J Pharm Sci 2018; 117:204-215. [DOI: 10.1016/j.ejps.2018.02.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 01/29/2018] [Accepted: 02/20/2018] [Indexed: 10/17/2022]
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13
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Ni Y, Lin W, Mu RJ, Wu C, Wang L, Wu D, Chen S, Pang J. Robust microfluidic construction of hybrid microfibers based on konjac glucomannan and their drug release performance. RSC Adv 2018; 8:26432-26439. [PMID: 35541034 PMCID: PMC9083025 DOI: 10.1039/c8ra05600e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 07/11/2018] [Indexed: 12/17/2022] Open
Abstract
The exploration of methods to produce a novel wound dressing with sustained drug release properties in ultrasmall scales is of great scientific and technological interest. Herein, we propose konjac glucomannan/polyvinylidene fluoride (KGM/PVDF) hybrid microfibers having hydrophilic and hydrophobic segments based on microfluidic-oriented core–sheath composite microfibers, where the KGM/PVDF hybrid microfibers are wrapped in situ in CH3OH. The morphology of KGM/PVDF microfibers is uniform, smooth, and crack-free. Enrofloxacin (Enro) is loaded onto the microfibers as a representative cargo to test their release performance. The KGM/PVDF/Enro microfibers show sustained drug release performance (13 days), excellent heat resistance, antibacterial activity and promotion of wound healing. This study is an avenue toward the microfluidic design of hydrophilic/hydrophobic hybrid microfibers as wound dressings, and it will guide the development of next-generation wound dressing. The exploration of methods to produce a novel wound dressing with sustained drug release properties in ultrasmall scales is of great scientific and technological interest.![]()
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Affiliation(s)
- Yongsheng Ni
- College of Food Science
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- China
| | - Wanmei Lin
- College of Food Science
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- China
| | - Ruo-Jun Mu
- College of Food Science
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- China
| | - Chunhua Wu
- College of Food Science
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- China
| | - Lin Wang
- College of Food Science
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- China
| | - Dan Wu
- College of Food Science
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing 210009
| | - Jie Pang
- College of Food Science
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- China
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14
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Chen CH, Yao YY, Tang HC, Lin TY, Chen D, Cheng KW. Long-term antibacterial performances of biodegradable polylactic acid materials with direct absorption of antibiotic agents. RSC Adv 2018; 8:16223-16231. [PMID: 35542195 PMCID: PMC9080263 DOI: 10.1039/c8ra00504d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 04/21/2018] [Indexed: 11/30/2022] Open
Abstract
In this study, polylactic acid (PLA) disks with antibacterial performances were prepared using 3D printing technology combined with direct adsorption of the antibiotic agents in solution baths. The effects of the layer thicknesses for the building of the 3D printing PLA disks and the amounts of antibiotic agents absorbed onto the sample surfaces on their antibacterial activities were investigated. The antibiotic agent release profiles from the samples surface into the buffer solution show that the antibacterial performances of these samples can reach up to 28 days. With a decrease in the concentration of antibiotic agent in the solution bath, the amount of antibiotic agent adsorbed on the sample surfaces also decreases, but their antibacterial performances can still maintain at least 7 days. In the bioactivity tests of the various organisms, the release amount of antibiotic agent from the sample can inhibit E. coli and S. aureus for over 80% up to 28 days. In the antibacterial activity tests, a PLA disk with suitable antibiotic agents covering its surface has a good inhibitory effect on the growth ability of S. aureus of less than 50% in six hours. In this study, we developed a surface modification of 3D printing PLA disks. The relative optical density of the S. aureus in the solution can reduce to 40% using the PLA disk directly absorbed with suitable antibiotic agents.![]()
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Affiliation(s)
- Chien-Hao Chen
- Department of Orthopaedic Surgery
- Chang Gung Memorial Hospital
- Taiwan
- College of Medicine
- Chang Gung University
| | - Yuan-Yuan Yao
- Department of Chemical and Materials Engineering
- Chang Gung University
- Taoyuan
- Taiwan
| | - Hao-Che Tang
- Department of Orthopaedic Surgery
- Chang Gung Memorial Hospital
- Taiwan
- College of Medicine
- Chang Gung University
| | - Tung-Yi Lin
- Department of Orthopaedic Surgery
- Chang Gung Memorial Hospital
- Taiwan
- College of Medicine
- Chang Gung University
| | - Dave W. Chen
- Department of Orthopaedic Surgery
- Chang Gung Memorial Hospital
- Taiwan
- College of Medicine
- Chang Gung University
| | - Kong-Wei Cheng
- Department of Orthopaedic Surgery
- Chang Gung Memorial Hospital
- Taiwan
- Department of Chemical and Materials Engineering
- Chang Gung University
| |
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