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Mabrouk M, Ismail E, Beherei H, Abo-Elfadl MT, Salem ZA, Das DB, AbuBakr N. Biocompatibility of hydroxyethyl cellulose/glycine/RuO 2 composite scaffolds for neural-like cells. Int J Biol Macromol 2022; 209:2097-2108. [PMID: 35504415 DOI: 10.1016/j.ijbiomac.2022.04.190] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/19/2022] [Accepted: 04/25/2022] [Indexed: 11/24/2022]
Abstract
Fabrication of scaffolds for nerve regeneration is one of the most challenging topics in regenerative medicine at the moment, which is also interlinked with the development of biocompatible substrates for cells growth. This work is targeted towards the development of green biomaterial composite scaffolds for nerve cell culture applications. Hybrid scaffolds of hydroxyethyl cellulose/glycine (HEC/Gly) composite doped with different concentrations of green ruthenium oxide (RuO2) were synthesized and characterized via a combination of different techniques. X-rays diffraction (XRD) and differential scanning calorimetry (DSC) analyses showed a crystalline nature for all the samples with noticeable decrease in the peak intensity of the fabricated scaffolds as compared to that for pure glycine. Fourier transform infrared spectroscopy (FTIR) tests revealed an increase in the vibrational bands of the synthesized RuO2 containing scaffolds which are related to the functional groups of the natural plant extract (Aspalathuslinearis) used for RuO2 nanoparticles (NPs) synthesis. Scanning electron microscopy (SEM) results revealed a 3D porous structure of the scaffolds with variant features attributed to the concentration of RuO2 NPs in the scaffold. The compressive test results recorded an enhancement in mechanical properties of the fabricated scaffolds (up to 8.55 MPa), proportionally correlated to increasing the RuO2 NPs concentration in HEC/Gly composite scaffold. Our biocompatibility tests revealed that the composite scaffolds doped with 1 and 2 ml of RuO2 demonstrated the highest proliferation percentages (152.2 and 135.6%) compared to control. Finally, the SEM analyses confirmed the impressive cells attachments and differentiation onto the scaffold surfaces as evidenced by the presence of many neuron-like cells with apparent cell bodies and possessing few short neurite-like processes. The presence of RuO2 and glycine was due to their extraordinary biocompatibility due to their cytoprotective and regenerative effects. Therefore, we conclude that these scaffolds are promising for accommodation and growth of neural-like cells.
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Affiliation(s)
- Mostafa Mabrouk
- Refractories, Ceramics and Building Materials Department, Advanced Materials, Technology and Mineral Resources Research Institute, National Research Centre, 33El Bohouth St. (former EL Tahrir St.), Dokki, Giza, P.O.12622, Egypt.
| | - Enas Ismail
- Department of Restorative Dentistry, Faculty of Dentistry, University of the Western Cape, Cape Town 7505, South Africa; Physics Department, Faculty of Science (Girl's branch), Al Azhar University, Nasr City, Cairo, Egypt
| | - Hanan Beherei
- Refractories, Ceramics and Building Materials Department, Advanced Materials, Technology and Mineral Resources Research Institute, National Research Centre, 33El Bohouth St. (former EL Tahrir St.), Dokki, Giza, P.O.12622, Egypt.
| | - Mahmoud T Abo-Elfadl
- Cancer Biology and Genetics Laboratory, Centre of Excellence for Advanced Sciences, National Research Centre, 33 El-Buhouth Street, Dokki, Giza 12622, Egypt; Biochemistry Department, National Research Centre, Dokki, Giza, Egypt
| | - Zeinab A Salem
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo, Egypt; Faculty of Oral and Dental Medicine, Ahram Canadian University, Cairo, Egypt
| | - Diganta B Das
- Department of Chemical Engineering, Loughborough University, Loughborough LE113TU, Leicestershire, UK
| | - Nermeen AbuBakr
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo, Egypt; Stem Cells and Tissue Engineering Unit, Faculty of Dentistry, Cairo University, Cairo, Egypt
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Song L, Chen P, Yu J, Han X, Hua Y, Liu S, Pang B, Gao J, Ma J, Xu L. A novel cyanoacrylate-based matrix excipient in HPMCP capsules forms a sustained intestinal delivery system for orally administered drugs with enhanced absorption efficiency. J Mater Chem B 2021; 9:1288-1296. [PMID: 33443280 DOI: 10.1039/d0tb02606a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Patients prefer oral drug delivery due to its convenience and noninvasiveness. Nevertheless, a multitude of potentially clinically important drugs will not reach the market or achieve their full potential, due to their low bioavailability and instability in gastric acid. In this study, a novel oral drug delivery system based on poly-cyanoacrylate [a polymer of 2-(2-methoxyethoxy)ethyl-2-cyanoacrylate (MECA)] and hydroxypropyl methylcellulose phthalate (HPMCP) was developed and shown to permit intestinal targeting and sustained drug release. Aspirin [acetylsalicylic acid (ASA)] was selected as a model drug for atherosclerosis treatment. It was physically dissolved in liquid MECA, and the ASA-MECA matrix was then polymerized into a solid drug-loading depot in an HPMCP shell. The delivery of the drug depot in the intestine was achieved with the HPMCP shell; then the polymerized MECA (polyMECA) provided sustained drug release. The polyMECA excipient was not absorbed by the intestine due to its high molecular weight; a fluorescein-labeled assay indicated that it was excreted completely in feces after drug release. The formulation, ASA-polyMECA-HPMCP, showed good intestinal targeting and sustained drug release in vitro and in vivo. Pharmacokinetic studies indicated that this formulation improved the bioavailability of ASA relative to commercially available controls. ASA-polyMECA-HPMCP showed desirable anti-atherosclerosis efficacy in a rabbit model, with significant enhancement of atheromatous lesion stability. Biosafety tests proved the low toxicity of ASA-polyMECA-HPMCP and the polyMECA matrix. We believe that this work has provided a practical and biocompatible system for sustained intestinal drug delivery that can be applied broadly with various drugs for specific therapeutic aims.
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Affiliation(s)
- Liya Song
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China. and School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Pengfei Chen
- Department of Cardiology, the 6th Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Jin Yu
- Department of Neurology (the First Medical Center), Chinese PLA General Hospital, Beijing 100853, China
| | - Xiaolu Han
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China.
| | - Yabing Hua
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China.
| | - Shan Liu
- Pathology Department of PLA Rocket Force Characteristic Medical Center, Beijing 100085, China
| | - Bo Pang
- Clinical Laboratory, Guanganmen Hospital, China Academy of Chinese Medical Science, Beijing 100053, China
| | - Jing Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China.
| | - Jiahua Ma
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Liang Xu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China.
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Mikac U, Sepe A, Gradišek A, Kristl J, Apih T. Dynamics of water and xanthan chains in hydrogels studied by NMR relaxometry and their influence on drug release. Int J Pharm 2019; 563:373-383. [DOI: 10.1016/j.ijpharm.2019.04.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/21/2019] [Accepted: 04/06/2019] [Indexed: 12/12/2022]
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Caccavo D. An overview on the mathematical modeling of hydrogels' behavior for drug delivery systems. Int J Pharm 2019; 560:175-190. [PMID: 30763681 DOI: 10.1016/j.ijpharm.2019.01.076] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/28/2019] [Accepted: 01/31/2019] [Indexed: 02/07/2023]
Abstract
Hydrogels-based systems (HBSs) for drug delivery are nowadays extensively used and the interest in modeling their behavior is dramatically increasing. In this review a critical overview on the modeling approaches is given, quantitatively and qualitatively analyzing the publications on the subject, the trend of the publications per year and the type of modeling approaches. It was found that, despite the drug release fitting models (i.e. Higuchi's equation) are the most abundant, their use for HBSs is decreasing in the last years and luckily, considering the limiting assumption on which they were built, they will be confined to simple mathematical fitting equations. Within the mechanistic models the "multi-component" with the swelling approximation (mass transport only) and with the mechanics (fully coupled) are experiencing the highest growth rate, with much more interest toward the last one that, in the next years could be able to provide a first principles model. Statistical models, especially based on the response surface methodology, are rapidly spreading in the scientific community mainly thanks to their ability to be predictive, regardless of the phenomenology, in the analyzed design space with very low efforts. Neural Networks models for HBSs, in countertrend with their use in the pharmaceutical industry, have never take off preferring less data demanding statistical models.
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Affiliation(s)
- Diego Caccavo
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, SA, Italy.
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Zardad A, Mabrouk M, Marimuthu T, du Toit L, Kumar P, Choonara Y, Kondiah P, Badhe R, Chejara D, Pillay V. Synthesis and biocompatibility of dual-responsive thermosonic injectable organogels based on crosslinked N-(isopropyl acrylamide) for tumour microenvironment targeting. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:148-158. [DOI: 10.1016/j.msec.2018.04.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 03/28/2018] [Accepted: 04/19/2018] [Indexed: 02/06/2023]
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Beherei HH, Shaltout AA, Mabrouk M, Abdelwahed NA, Das DB. Influence of Niobium Pentoxide Particulates on the Properties of Brushite/Gelatin/Alginate Membranes. J Pharm Sci 2018; 107:1361-1371. [DOI: 10.1016/j.xphs.2018.01.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 01/09/2018] [Accepted: 01/17/2018] [Indexed: 12/15/2022]
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