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Liu JH, Chen XL, Yang HM, Yin YR, Kurniawan A, Zhou CH. Thermosensitive curcumin/silver/montmorillonite-F127 hydrogels with synergistic photodynamic/photothermal/silver ions antibacterial activity. J Mater Chem B 2024; 12:6874-6885. [PMID: 38912877 DOI: 10.1039/d4tb00431k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Bacterial infections and the emergence of super-resistant bacteria pose a significant risk to human health. Effective sterilization to prevent the development of bacterial drug resistance remains a challenge. Herein, curcumin/silver/montmorillonite (Cur/Ag/Mt) was prepared through a green chemical reduction method with montmorillonite as the carrier, curcumin as the reducing agent and the capping agent, and citric acid as the structure guide agent. Then, a novel dual light-responsive and thermosensitive Pluronic F127-based hydrogel (CAM-F) was prepared by encapsulating Cur/Ag/Mt within the F127 hydrogel. The Cur/Ag/Mt showed strong absorption in the near-infrared region that efficiently converts light into heat for photothermal therapy when the molar ratio of curcumin to silver nitrate was 2 : 1. Specifically, triangular silver nanoparticles reduced by curcumin were immobilized on the Mt layers, which could enhance photodynamic therapy by the metal-enhanced singlet oxygen and metal-enhanced fluorescence mechanisms. Upon combining 405 nm and 808 nm laser irradiation, the CAM-F hydrogel could simultaneously generate reactive oxygen species, increase the local temperature, and sustain the release of Ag+, thus displaying excellent bactericidal performance against Gram-negative and Gram-positive bacteria. The antibacterial rates of CAM-F hydrogels were 99.26 ± 0.95% and 99.95 ± 0.98% for Escherichia coli and Staphylococcus aureus, respectively. The findings suggest the potential of the CAM-F hydrogel as a stable, biologically safe, and broad-spectrum antimicrobial material. The thermosensitive CAM-F hydrogels for synergetic phototherapy may provide a promising strategy for solving clinical problems caused by pathogenic infections.
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Affiliation(s)
- Jia Hui Liu
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Anhui International Exchange and Cooperation Base, Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
| | - Xiao Lan Chen
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Anhui International Exchange and Cooperation Base, Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
| | - Hui Min Yang
- Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province, China National Bamboo Research Center, Hangzhou 310012, China
| | - Yu Rong Yin
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Anhui International Exchange and Cooperation Base, Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
| | - Alfin Kurniawan
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Anhui International Exchange and Cooperation Base, Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
| | - Chun Hui Zhou
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Anhui International Exchange and Cooperation Base, Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
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Monteiro APF, Pérez-Jiménez A, Spitzlei C, Caucheteux J, Alves VD, Lambert S, Grandfils C. Interpenetrating alginate network as drug delivery matrix: Effects on protein stability and release. J Biomed Mater Res B Appl Biomater 2024; 112:e35354. [PMID: 37986690 DOI: 10.1002/jbm.b.35354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/26/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023]
Abstract
The study investigates the rheological properties and protein release capacity of a uniform hydrogel composed of sodium alginate (SA) and poloxamer (P407). The hydrogel is prepared through the sustained release of calcium ions, resulting in a reinforced and homogeneous interpenetrating networks (IPNs) of SA and P407 polymeric chains. By adjusting the amount of crosslink agent, the hydrogel exhibites an adjustable dissolution ratio and adaptable gelling time. Moreover, the composite showed a well-structured network and superior mechanical strength, enabling the sustained release of both calcium ions and Soybean Trypsin Inhibitor (STI) protein, a model of Bone Morphogenic Protein (BMP). Importantly, the protein release kinetic can be tuned based on the SA content in the polymeric blend, highlighting the versatile nature of this hydrogel for drug delivery purposes.
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Affiliation(s)
- Ana P F Monteiro
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
- Department of Chemical Engineering - Nanomaterials, Catalysis and Electrochemistry (NCE), University of Liège, Liège, Belgium
| | - Aurora Pérez-Jiménez
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Claire Spitzlei
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Joachim Caucheteux
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Vitor Delgado Alves
- LEAF-Linking Landscape Environment Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Stéphanie Lambert
- Department of Chemical Engineering - Nanomaterials, Catalysis and Electrochemistry (NCE), University of Liège, Liège, Belgium
| | - Christian Grandfils
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
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Sangitra SN, Pujala RK. Effect of small amounts of akaganeite (β-FeOOH) nanorods on the gelation, phase behaviour and injectability of thermoresponsive Pluronic F127. SOFT MATTER 2023; 19:5869-5879. [PMID: 37401782 DOI: 10.1039/d3sm00451a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Pluronic F127 (PF127) is a copolymer with an amphiphilic nature and can self-assemble to form micelles and, beyond 20% (w/v), form a thermoresponsive physical gel state. However, they are mechanically weak and easily dissolve in physiological environments, which limits their use in load-bearing in specific biomedical applications. Therefore, we propose a pluronic-based hydrogel with enhanced stability by incorporating small amounts of paramagnetic nanorods, akaganeite (β-FeOOH) nanorods (NRs) of aspect ratio ∼7, with PF127. Due to their weak magnetic properties, β-FeOOH NRs have been used as a precursor for preparing stable iron-oxide states (e.g., hematite and magnetite), and the studies on β-FeOOH NRs to be used as a primary component in hydrogels are at the nascent stage. Here we report a method to synthesize β-FeOOH NRs on a gram scale using a simple sol-gel process and characterize the NRs with various techniques. A phase diagram and thermoresponsive behaviour based on rheological experiments and visual observations are proposed for 20% (w/v) PF127 with low concentrations (0.1-1.0% (w/v)) of β-FeOOH NRs. We observe a unique non-monotonous behaviour in the gel network represented by various rheological parameters like storage modulus, yield stress, fragility, high-frequency modulus plateau, and characteristic relaxation time as a function of nanorod concentration. A plausible physical mechanism is proposed to fundamentally understand the observed phase behaviour in the composite gels. These gels show thermoresponsiveness and enhanced injectability, and could find applications in tissue engineering and drug delivery.
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Affiliation(s)
- Surya Narayana Sangitra
- Soft and Active Matter group, Department of Physics, Indian Institute of Science Education and Research (IISER), Tirupati, Andhra Pradesh, 517507, India.
| | - Ravi Kumar Pujala
- Soft and Active Matter group, Department of Physics, Indian Institute of Science Education and Research (IISER), Tirupati, Andhra Pradesh, 517507, India.
- Centre for Atomic, Molecular and Optical Sciences & Technologies (CAMOST), Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh, 517507, India
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CIFTBUDAK S, KALKAN B, BOZBAY R, Mertcan ER, ORAKDOGEN N. Structure-property relationships of Kaolin-nanocomposite beads decorated with tertiary amines: Influence of shape on network elasticity and multi-responsivity. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Marwani HM, Ahmad S, Rahman MM. Fabrication of 3D Gelatin Hydrogel Nanocomposite Impregnated Co-Doped SnO2 Nanomaterial for the Catalytic Reduction of Environmental Pollutants. Gels 2022; 8:gels8080479. [PMID: 36005080 PMCID: PMC9407077 DOI: 10.3390/gels8080479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
In the catalytic reduction of various environment pollutants, cobalt-doped tin oxide, i.e., Co-SnO2 intercalated gelatin (GL) hydrogel nanocomposite was prepared via direct mixing of Co-SnO2 doped with GL. Then, it was crosslinked internally using formaldehyde within a viscous solution of gelatin polymer, which led to the formation of GL/Co-SnO2 hydrogel nanocomposite. GL/Co-SnO2 hydrogel nanocomposite was fully characterized by using field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (XRD), and attenuated total reflection–Fourier transform infrared spectroscopy (ATR-FTIR). The FESEM images indicate that the Co-SnO2 composite has a spherical structure on the GL matrix while EDX elucidates the elemental composition of each atom in the crosslinked GL/Co-SnO2 hydrogel nanocomposite. The GL/Co-SnO2 nanocomposite was checked for the reduction of various pollutants, including 2-nitro-phenol (2-NP), 2,6-dinitro-phenol (2,6-DNP), 4-nitro-phenol (4-NP), Congo red (CR), and methyl orange (MO) dyes with a strong sodium borohydride (NaBH4) reducing agent. The GL/Co-SnO2 nanocomposite synergistically reduced the MO in the presence of the reducing agent with greater reduction rate of 1.036 min−1 compared to other dyes. The reduction condition was optimized by changing various parameters, such as the catalyst amount, dye concentration, and the NaBH4 amount. Moreover, the GL/Co-SnO2 nanocomposite catalyst can be easily recovered, is recyclable, and revealed minimal loss of nanomaterials.
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Affiliation(s)
- Hadi M. Marwani
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Correspondence: (H.M.M.); (M.M.R.); Tel.: +966-12-6952293 (H.M.M.); Fax: +966-12-6952292 (H.M.M.)
| | - Shahid Ahmad
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;
| | - Mohammed M. Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Correspondence: (H.M.M.); (M.M.R.); Tel.: +966-12-6952293 (H.M.M.); Fax: +966-12-6952292 (H.M.M.)
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Yue Q, Wen SP, Fielding LA. Preparation and characterisation of graphene oxide containing block copolymer worm gels. SOFT MATTER 2022; 18:2422-2433. [PMID: 35266496 DOI: 10.1039/d2sm00045h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This paper reports a generic method for preparing reinforced nanocomposite worm-gels. Aqueous poly(glycerol monomethacrylate)-b-poly(2-hydroxypropyl methacrylate) (PGMA-PHPMA) and methanolic poly(glycerol monomethacrylate)-b-poly(benzyl methacrylate) (PGMA-PBzMA) worm gels were prepared by RAFT-mediated polymerisation-induced self-assembly (PISA). The former system undergoes a reversible worm-to-sphere degelation transition upon cooling to 5 °C whilst the latter system undergoes the same transition on heating to 56 °C. This transition allows these copolymer dispersions to be readily mixed with graphene oxide (GO) whilst in a low viscosity state and form nanocomposite gels on returning to room temperature via a sphere-to-worm transition. Various quantities of GO were added to the studied copolymer dispersions at a fixed copolymer content of 15% w/w. A general trend was observed whereby relatively small quantities of GO caused the gel strength of the nanocomposite gel to be higher than that of the pristine worm-gel, as determined by oscillatory rheology. Additional quantities of GO resulted in gel weakening or prevented gel-reformation altogether. For instance, 15% w/w PGMA52-PHPMA130 worm gels had a storage modulus (G') of approximately 1.5 kPa. The addition of 1.5% w/w GO based on the copolymer caused G' to increase to approximately 4.0 kPa but >1.5% w/w GO resulted in gel strengths <1.0 kPa. A combination of aqueous electrophoresis and transmission electron microscopy measurements were used to investigate the mechanism of nanocomposite gel formation. It was observed that the PGMA-based copolymers readily absorb onto the surface of GO. Thus, the role of GO is both to strengthen the worm-gels when an optimal concentration of GO is used, but also prevent worm-reformation if too much copolymer becomes absorbed on the surface of the sheets.
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Affiliation(s)
- Qi Yue
- Department of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
- Henry Royce Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Shang-Pin Wen
- Department of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Lee A Fielding
- Department of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
- Henry Royce Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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Ryu J, Lee H, Seol D, Nguyen NQ, Chung H, Sohn D. Grafting mechanism of poly(acrylic acid) from silica particles during the gelation process. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Composite hydrogel membrane with high mechanical strength for treatment of dye pollutant. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Seçer S, Ceylan Tuncaboylu D. Supramolecular poloxamer-based in situ gels with hyaluronic acid and cyclodextrins. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1876055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sevgi Seçer
- Department of Biotechnology, Health Sciences Institute, Bezmialem Vakıf University, Istanbul, Turkey
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Zarrintaj P, Ramsey JD, Samadi A, Atoufi Z, Yazdi MK, Ganjali MR, Amirabad LM, Zangene E, Farokhi M, Formela K, Saeb MR, Mozafari M, Thomas S. Poloxamer: A versatile tri-block copolymer for biomedical applications. Acta Biomater 2020; 110:37-67. [PMID: 32417265 DOI: 10.1016/j.actbio.2020.04.028] [Citation(s) in RCA: 158] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 11/16/2022]
Abstract
Poloxamers, also called Pluronic, belong to a unique class of synthetic tri-block copolymers containing central hydrophobic chains of poly(propylene oxide) sandwiched between two hydrophilic chains of poly(ethylene oxide). Some chemical characteristics of poloxamers such as temperature-dependent self-assembly and thermo-reversible behavior along with biocompatibility and physiochemical properties make poloxamer-based biomaterials promising candidates for biomedical application such as tissue engineering and drug delivery. The microstructure, bioactivity, and mechanical properties of poloxamers can be tailored to mimic the behavior of various types of tissues. Moreover, their amphiphilic nature and the potential to self-assemble into the micelles make them promising drug carriers with the ability to improve the drug availability to make cancer cells more vulnerable to drugs. Poloxamers are also used for the modification of hydrophobic tissue-engineered constructs. This article collects the recent advances in design and application of poloxamer-based biomaterials in tissue engineering, drug/gene delivery, theranostic devices, and bioinks for 3D printing. STATEMENT OF SIGNIFICANCE: Poloxamers, also called Pluronic, belong to a unique class of synthetic tri-block copolymers containing central hydrophobic chains of poly(propylene oxide) sandwiched between two hydrophilic chains of poly(ethylene oxide). The microstructure, bioactivity, and mechanical properties of poloxamers can be tailored to mimic the behavior of various types of tissues. Moreover, their amphiphilic nature and the potential to self-assemble into the micelles make them promising drug carriers with the ability to improve the drug availability to make cancer cells more vulnerable to drugs. However, no reports have systematically reviewed the critical role of poloxamer for biomedical applications. Research on poloxamers is growing today opening new scenarios that expand the potential of these biomaterials from "traditional" treatments to a new era of tissue engineering. To the best of our knowledge, this is the first review article in which such issue is systematically reviewed and critically discussed in the light of the existing literature.
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Affiliation(s)
- Payam Zarrintaj
- Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK 74078, United States
| | - Joshua D Ramsey
- Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK 74078, United States
| | - Ali Samadi
- Polymer Engineering Department, Faculty of Engineering, Urmia University, Urmia, Iran
| | - Zhaleh Atoufi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mohsen Khodadadi Yazdi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology & Metabolism Molecular-Cellular Sciences, University of Tehran, Tehran, Iran
| | | | - Ehsan Zangene
- Department of Bioinformatics, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran
| | - Krzysztof Formela
- Department of Polymer Technology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Mohammad Reza Saeb
- Department of Resin and Additives, Institute for Color Science and Technology, Tehran, Iran.
| | - Masoud Mozafari
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Sabu Thomas
- School of Chemical Sciences, M G University, Kottayam 686560, Kerala, India
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Ianchis R, Ninciuleanu CM, Gifu IC, Alexandrescu E, Nistor CL, Nitu S, Petcu C. Hydrogel-clay Nanocomposites as Carriers for Controlled Release. Curr Med Chem 2020; 27:919-954. [PMID: 30182847 DOI: 10.2174/0929867325666180831151055] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/12/2018] [Accepted: 07/24/2018] [Indexed: 12/15/2022]
Abstract
The present review aims to summarize the research efforts undertaken in the last few years in the development and testing of hydrogel-clay nanocomposites proposed as carriers for controlled release of diverse drugs. Their advantages, disadvantages and different compositions of polymers/biopolymers with diverse types of clays, as well as their interactions are discussed. Illustrative examples of studies regarding hydrogel-clay nanocomposites are detailed in order to underline the progressive researches on hydrogel-clay-drug pharmaceutical formulations able to respond to a series of demands for the most diverse applications. Brief descriptions of the different techniques used for the characterization of the obtained complex hybrid materials such as: swelling, TGA, DSC, FTIR, XRD, mechanical, SEM, TEM and biology tests, are also included. Enlightened by the presented data, we can suppose that hydrogel-clay nanocomposites will still be a challenging subject of global assiduous researches. We can dare to dream to an efficient drug delivery platform for the treatment of multiple affection concomitantly, these being undoubtedly like "a tree of life" bearing different kinds of fruits and leaves proper for human healing.
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Affiliation(s)
- Raluca Ianchis
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Claudia Mihaela Ninciuleanu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Ioana Catalina Gifu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Elvira Alexandrescu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Cristina Lavinia Nistor
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Sabina Nitu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Cristian Petcu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM Bucharest, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
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Zeinali A, Sirousazar M, Dastgerdi ZH, Kheiri F. Gelatin/Montmorillonite and Gelatin/Polyvinyl Alcohol/Montmorillonite Bionanocomposite Hydrogels: Microstructural, Swelling and Drying Properties. J MACROMOL SCI B 2020. [DOI: 10.1080/00222348.2019.1709714] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Amin Zeinali
- Faculty of Chemical Engineering, Urmia University of Technology, Urmia, Iran
| | - Mohammad Sirousazar
- Faculty of Chemical Engineering, Urmia University of Technology, Urmia, Iran
| | | | - Farshad Kheiri
- Faculty of Chemical Engineering, Urmia University of Technology, Urmia, Iran
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Bakravi A, Ahamadian Y, Hashemi H, Namazi H. Synthesis of gelatin-based biodegradable hydrogel nanocomposite and their application as drug delivery agent. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.21938] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Asghar Bakravi
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Yashar Ahamadian
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Hamed Hashemi
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Hassan Namazi
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
- Research Center for Pharmaceutical Nanotechnology (RCPN); Tabriz University of Medical Science; Tabriz Iran
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Madni A, Rahem MA, Tahir N, Sarfraz M, Jabar A, Rehman M, Kashif PM, Badshah SF, Khan KU, Santos HA. Non-invasive strategies for targeting the posterior segment of eye. Int J Pharm 2017; 530:326-345. [PMID: 28755994 DOI: 10.1016/j.ijpharm.2017.07.065] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 01/02/2023]
Abstract
The safe and effective treatment of eye diseases has been remained a global myth. Several advancements have been done and various drug delivery and treatment techniques have been suggested. The Posterior segment disorders are the leading cause of visual impairments and blindness. Targeting the therapeutic agents to the anterior and posterior segments of the eye has attracted extensive attention from the scientific community. Significant key factors in the success of ocular therapy are the development of safe, effective, economic and non-invasive novel drug delivery systems. These specialized non-invasive ocular drug delivery systems revolutionized the drug delivery strategies by overcoming the limitations, provided targeted delivery to the ocular tissues by avoiding larger doses, and reducing the toxicity encountered by the conventional approaches. These non-invasive systems are fabricated by ingredients encompassing biodegradability, biocompatibility, mucoadhesion, solubility and permeability enhancement and stimuli responsiveness. The variety of routes are utilized to provide minimally invasive drug delivery to the patients without any discomfort and pain. This review is focused on the brief introduction, types, significance, preparation techniques, components and mechanism of drug release of non-invasive systems, including in situ gelling systems, microspheres, iontophoresis, nanoparticles, nanosuspensions and specialized novel emulsions.
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Affiliation(s)
- Asadullah Madni
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan.
| | - Muhammad Abdur Rahem
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan
| | - Nayab Tahir
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan; Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Muhammad Sarfraz
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan
| | - Abdul Jabar
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan
| | - Mubashar Rehman
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan
| | - Prince Muhammad Kashif
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan
| | - Syed Faisal Badshah
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan
| | - Kifayat Ullah Khan
- Department of Pharmacy, The Islamia University of Bahawalpur, 63100 Bahawalpur, Pakistan
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland; Helsinki Institute of Life Science (HiLIFE), University of Helsinki, FI-00014 Helsinki, Finland.
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