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Novel Polymeric Nanomaterial Based on Poly(Hydroxyethyl Methacrylate-Methacryloylamidophenylalanine) for Hypertension Treatment: Properties and Drug Release Characteristics. Polymers (Basel) 2022; 14:polym14225038. [PMID: 36433166 PMCID: PMC9693067 DOI: 10.3390/polym14225038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
In this study, a novel polymeric nanomaterial was synthesized and characterized, and it its potential usability in hypertension treatment was demonstrated. For these purposes, a poly(hydroxyethyl methacrylate-methacryloylamidophenylalanine)-based polymeric nanomaterial (p(HEMPA)) was synthesized using a mini-emulsion polymerization technique. The nanomaterials were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and zeta size analysis. The synthesized p(HEMPA) nanomaterial had a diameter of about 113 nm. Amlodipine-binding studies were optimized by changing the reaction conditions. Under optimum conditions, amlodipine's maximum adsorption value (Qmax) of the p(HEMPA) nanopolymer was found to be 145.8 mg/g. In vitro controlled drug release rates of amlodipine, bound to the nanopolymer at the optimum conditions, were studied with the dialysis method in a simulated gastrointestinal system with pH values of 1.2, 6.8 and 7.4. It was found that 99.5% of amlodipine loaded on the nanomaterial was released at pH 7.4 and 72 h. Even after 72 h, no difference was observed in the release of AML. It can be said that the synthesized nanomaterial is suitable for oral amlodipine release. In conclusion, the synthesized nanomaterial was studied for the first time in the literature as a drug delivery system for use in the treatment of hypertension. In addition, AML-p(HEMPA) nanomaterials may enable less frequent drug uptake, have higher bioavailability, and allow for prolonged release with minimal side effects.
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Omar AE, Ahmed MM, Abd-Allah WM. Effect of Gamma Irradiation on Silica Nanoparticles for Ciprofloxacin Drug Delivery. SILICON 2022; 14:11171-11180. [DOI: 10.1007/s12633-022-01838-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/20/2022] [Indexed: 09/02/2023]
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Ouis MA, Abd-Allah WM, Sallam OI. Gamma ray interaction with soda lime silicate glasses doped with V2O5, CuO or SrO. APPLIED PHYSICS A 2022; 128:389. [DOI: 10.1007/s00339-022-05522-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/22/2022] [Indexed: 09/02/2023]
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Gamma irradiation effectuality on the antibacterial and bioactivity behavior of multicomponent borate glasses against methicillin-resistant Staphylococcus aureus (MRSA). J Biol Inorg Chem 2022; 27:155-173. [DOI: 10.1007/s00775-021-01918-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/14/2021] [Indexed: 12/12/2022]
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Ji L, Xu T, Gu J, Liu Q, Zhou S, Shi G, Zhu Z. Preparation of bioactive glass nanoparticles with highly and evenly doped calcium ions by reactive flash nanoprecipitation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:48. [PMID: 33891166 PMCID: PMC8064980 DOI: 10.1007/s10856-021-06521-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/01/2021] [Indexed: 05/05/2023]
Abstract
Nanoscale bioactive glass particles have greater bioactivity than microscale bioactive glass particles, due to their high-specific surface area and fast ion release rate in body fluid. However, preparation of bioactive glass nanoparticles (BGNPs) is difficult since calcium is not easy to be highly doped into the forming silica atom network, leading to an uneven distribution and a low content of calcium. In addition, BGNPs are usually prepared in a dilute solution to avoid agglomeration of the nanoparticles, which decreases the production efficiency and increases the cost. In this work, BGNPs are prepared by a method of the reactive flash nanoprecipitation (RFNP) as well as a traditional sol-gel method. The results indicate that the BGNPs by the RFNP present a smaller size, narrower size distribution, more uniform composition, and better bioactivity than those by the traditional sol-gel method. The obtained BGNPs have uniform compositions close to the feed values. The high and even doping of calcium in the BGNPs is achieved. This successful doping of calcium into nanoparticles by the RFNP demonstrates a promising way to effectively generate high-quality BGNPs for bone repairs.
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Affiliation(s)
- Lijun Ji
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China.
| | - Tong Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Jun Gu
- Department of Orthopaedics, Xishan People's Hospital of Wuxi, Wuxi, 214000, China
| | - Qingren Liu
- Department of Anesthesiology, Xishan People's Hospital of Wuxi, Wuxi, 214000, China
| | - Shu Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Guojun Shi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Zhengxi Zhu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China.
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Ahmed MM, Abd-Allah WM, Omar AE, Soliman AAF. The Dual Effect of Copper and Gamma Irradiation on Chronic Wound Healing of Nanobioactive Glass. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01501-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Kaur K, Singh KJ, Anand V, Bhatia G, Singh AP, Kaur M. Elucidating the role of size of hydroxyl apatite particles toward the development of competent antiosteoporotic bioceramic materials: In vitro and in vivo studies. J Biomed Mater Res A 2019; 107:1723-1735. [PMID: 30924267 DOI: 10.1002/jbm.a.36687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/14/2019] [Accepted: 03/15/2019] [Indexed: 12/26/2022]
Abstract
Osteoporosis caused by overdose of steroids is one of the major concerns for the orthopedic surgeons. Current therapeutic strategies offer limited success due to their inability to regenerate damaged bone at osteoporosis site. Therefore, there is an urgent need to develop a material having bone regeneration ability and also, ability to cure osteoporosis simultaneously. In this work, nanosized and microsized hydroxyl apatite (HAp) particles doped with europium (Eu) were prepared for diagnostic and therapeutic applications in biomedical engineering. Particles were characterized by X-ray diffraction to confirm the formation of HAp phase and transmission electron microscopy technique has been used to explore the size of microparticle and nanoparticle. In vitro release of antibiotic drug and degradation behavior in two different pHs of phosphate buffered saline was checked. Controlled drug release behavior and conversion of degraded ions into HAp is estimated by Higuchi's and 3D diffusion model, respectively. Osteoporosis was induced in 36 female Wistar rats by administering dexamethasone once a week for four consecutive weeks. Rats were treated with different doses of nano-HAp (25, 50, and 100 μg/kg intravenous single dose) and single dose of microsized HAp (100 μg/kg). After treatment, authors have evaluated sensitive biochemical markers of bone in serum. Continuous improvement in ultimate stiffness and Young's modulus of femur shaft of rats was observed with the increase in the dose of nano-HAp from 25 to 100 μg/kg. Results strongly suggest that europium-doped nano-HAp is more effective for treating severe osteoporosis in humans. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1723-1735, 2019.
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Affiliation(s)
- Kulwinder Kaur
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - K J Singh
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Vikas Anand
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Gaurav Bhatia
- Department of Molecular Biology & Biochemistry, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Amrit Pal Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Manpreet Kaur
- Department of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
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Baino F, Hamzehlou S, Kargozar S. Bioactive Glasses: Where Are We and Where Are We Going? J Funct Biomater 2018; 9:E25. [PMID: 29562680 PMCID: PMC5872111 DOI: 10.3390/jfb9010025] [Citation(s) in RCA: 207] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 03/11/2018] [Accepted: 03/16/2018] [Indexed: 12/31/2022] Open
Abstract
Bioactive glasses caused a revolution in healthcare and paved the way for modern biomaterial-driven regenerative medicine. The first 45S5 glass composition, invented by Larry Hench fifty years ago, was able to bond to living bone and to stimulate osteogenesis through the release of biologically-active ions. 45S5-based glass products have been successfully implanted in millions of patients worldwide, mainly to repair bone and dental defects and, over the years, many other bioactive glass compositions have been proposed for innovative biomedical applications, such as soft tissue repair and drug delivery. The full potential of bioactive glasses seems still yet to be fulfilled, and many of today's achievements were unthinkable when research began. As a result, the research involving bioactive glasses is highly stimulating and requires a cross-disciplinary collaboration among glass chemists, bioengineers, and clinicians. The present article provides a picture of the current clinical applications of bioactive glasses, and depicts six relevant challenges deserving to be tackled in the near future. We hope that this work can be useful to both early-stage researchers, who are moving with their first steps in the world of bioactive glasses, and experienced scientists, to stimulate discussion about future research and discover new applications for glass in medicine.
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Affiliation(s)
- Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Sepideh Hamzehlou
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, 14155-6447 Tehran, Iran.
- Medical Genetics Network (MeGeNe), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Saeid Kargozar
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, P.O. Box 917794-8564, Mashhad, Iran.
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Farag MM, Abd-Allah WM, Ahmed HYA. Study of the dual effect of gamma irradiation and strontium substitution on bioactivity, cytotoxicity, and antimicrobial properties of 45S5 bioglass. J Biomed Mater Res A 2017; 105:1646-1655. [PMID: 28187505 DOI: 10.1002/jbm.a.36035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 02/05/2017] [Accepted: 02/08/2017] [Indexed: 02/04/2023]
Abstract
In this work, we studied simultaneous effect of gamma irradiation and SrO substitution for Na2 O on bioactivity, cytotoxicity and antimicrobial properties of 45S5 glass. Gamma irradiation was mainly introduced in this work as an effective sterilizing technique, improvement of bulk properties and surface modification of glass. Where, gamma irradiation is considered a modifier for glass network due to generation of defects resulted from this irradiation. Furthermore, SrO was introduced into the glass structure in place of Na2 O in order to reduce a probable toxic effect of Na2 O for surrounding tissue by decreasing its percentage. Where, Sr2+ is characterized by its antibacterial properties, as well as, it induces formation of bone tissue and inhibits its resorption. The cell viability was studied for selected samples using Vero cells. As well as, antimicrobial activity was evaluated against Bacillus subtilis, Staphylococcus pneumonia, and Escherichia coli and Pseudomonas aeruginosa bacteria. The results showed that substitution of Na2 O by SrO in glass composition decreased the glass dissolution in SBF. However, the glass dissolution increased after irradiation of such glass due to generation of nonbridgingoxygens (NBOs) throughout glass network by gamma irradiation, and this effect was more obvious for Sr-contained glass. On the other hand, two selected Sr-containing glasses (gamma irradiated at 0 and 25 kGy) showed a good ability to stimulate cell proliferation of normal fibroblast cells, as well as, they represented a potential ability to inhibit the growth of or kill bacteria, which is considered an important issue commonly found in a clinical situation. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1646-1655, 2017.
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Affiliation(s)
- M M Farag
- Glass Research Department, National Research Center, 33 El-Bohooth St, Dokki, Giza, 1262, Egypt
| | - W M Abd-Allah
- Radiation Chemistry Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Egypt
| | - Hanaa Y A Ahmed
- The Regional Center of Mycology and Biotechnology- Al-Azhar University, Egypt
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Kaur K, Singh KJ, Anand V, Bhatia G, Kaur R, Kaur M, Nim L, Arora DS. Scaffolds of hydroxyl apatite nanoparticles disseminated in 1, 6-diisocyanatohexane-extended poly(1, 4-butylene succinate)/poly(methyl methacrylate) for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:780-790. [PMID: 27987773 DOI: 10.1016/j.msec.2016.10.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 10/09/2016] [Accepted: 10/23/2016] [Indexed: 11/24/2022]
Abstract
Poly(1, 4-butyl succinate) extended 1, 6-diisocyanatohexane (PBSu-DCH) polymers and Polymethylmethacrylate (PMMA) scaffolds decorated with nano hydroxyl apatite have been prepared and characterized for regeneration of bone in cranio-maxillofacial region. Synthesized scaffolds revealed good response in bone regeneration and excellent cell viability in comparison to commercial available glass plate, which lead to better proliferation of MG-63 cell lines. Additionally, they demonstrate high porosity and excellent water retention ability. Moreover, controlled degradation (in pH=7.4) and sustained drug release in pH (4.5 and 7.4) are advantages of these scaffolds to serve as delivery vehicles for therapeutic drugs. Samples also provide the protection against Escherichia coli and Methicillin Resistant Staphylococcus aureus microorganisms which can be helpful for quick recovery of the patient. In-vitro inflammatory response has been assessed via adsorption of human plasma/serum proteins on the surface of the scaffolds. Results suggest that prepared scaffolds have good bone regeneration ability and provide friendly environment for the cell growth with the additional advantage of protection of the surrounding tissues from microbial infection. With all these features, it is speculated that these scaffolds will have wide utility in the area of tissue engineering and regenerative medicine.
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Affiliation(s)
- Kulwinder Kaur
- Department of Physics, Guru Nanak Dev University, Amritsar 143005, India
| | - K J Singh
- Department of Physics, Guru Nanak Dev University, Amritsar 143005, India.
| | - Vikas Anand
- Department of Physics, Guru Nanak Dev University, Amritsar 143005, India
| | - Gaurav Bhatia
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Raminderjit Kaur
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Manpreet Kaur
- Department of Human Genetics, Guru Nanak Dev University, Amritsar 143005, India
| | - Lovedeep Nim
- Department of Microbiology, Guru Nanak Dev University, Amritsar 143005, India
| | - Daljit Singh Arora
- Department of Microbiology, Guru Nanak Dev University, Amritsar 143005, India
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