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Noureen S, Noreen S, Ghumman SA, Abdelrahman EA, Batool F, Aslam A, Mehdi M, Shirinfar B, Ahmed N. A novel pH-responsive hydrogel system based on Prunus armeniaca gum and acrylic acid: Preparation and evaluation as a potential candidate for controlled drug delivery. Eur J Pharm Sci 2023; 189:106555. [PMID: 37543064 DOI: 10.1016/j.ejps.2023.106555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/04/2023] [Accepted: 08/03/2023] [Indexed: 08/07/2023]
Abstract
pH-responsive hydrogels have become effective and attractive materials for the controlled release of drugs at pre-determined destinations. In the present study, a novel hydrogel system based on Prunus armeniaca gum (PAG) and acrylic acid (AA) was prepared by a free radical mechanism using N, N-methylene bisacrylamide (MBA) as cross-linker and potassium persulfate (KPS) as initiator. A series of hydrogels varying PAG, AA, and MBA concentration was developed to determine the impact of these components. Formulated hydrogels were characterized for pH-responsive swelling, drug release, gel content, and porosity. Structural analysis was performed by FTIR, XRD, and SEM analysis. TGA study was applied to assess thermal stability. Oral acute toxicity and in vivo drug release were performed in rabbits. Hydrogels exhibited pH-dependent swelling and drug release. Swelling, drug loading and release, and porosity increased by increasing PAG and AA concentration while decreased by increasing MBA. The gel content of formulations was increased by increasing all three components. FTIR studies confirmed the development of copolymeric networks and the loading of drug. XRD studies revealed that hydrogels were amorphous, and the crystalline drug was changed into an amorphous form during loading. TGA results indicated that hydrogels were stable up to 600 °C. Acute oral toxicity results confirm that hydrogels were nontoxic up to a dose of 2 g/kg body weight in rabbits. The pharmacokinetic evaluation revealed that hydrogels prolonged the availability of the drug and the peak plasma concentration of the drug was obtained in 6 h as compared to the oral solution of the drug. Tramadol hydrochloride (THC) was used as a model drug. Hence, pH-responsive swelling and release, nontoxic nature and improved pharmacokinetics support that PAG-based hydrogels may be considered as potential controlled-release polymeric carriers.
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Affiliation(s)
- Shazia Noureen
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Sobia Noreen
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan.
| | | | - Ehab A Abdelrahman
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia; Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Fozia Batool
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Afeefa Aslam
- Department Of Pharmacy, Comsats University, Abbottabad 22020, Pakistan
| | - Muhammad Mehdi
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Bahareh Shirinfar
- Department of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom
| | - Nisar Ahmed
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom.
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Mahmood A, Erum A, Tulain UR, Shafiq S, Malik NS, Khan MT, Alqahtani MS. Aloe vera-Based Polymeric Network: A Promising Approach for Sustained Drug Delivery, Development, Characterization, and In Vitro Evaluation. Gels 2023; 9:474. [PMID: 37367144 DOI: 10.3390/gels9060474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/04/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023] Open
Abstract
The present study was conducted to fabricate and characterize mucilage-based polymeric networks of Aloe vera for controlled drug release. Aloe vera mucilage was used to develop a polymeric network via the free-radical polymerization method using potassium persulphate as the initiator, N' N'-Methylene bisacrylamide as the crosslinker, and acrylamide as the monomer. Using varying concentrations of Aloe vera mucilage, crosslinker, and monomer, we developed different formulations. Swelling studies were conducted at pH 1.2 and 7.4. Concentrations of polymer, monomer, and crosslinker were optimized as a function of swelling. Porosity and gel content were calculated for all samples. FTIR, SEM, XRD, TGA, and DSC studies were conducted for the characterization of polymeric networks. Thiocolchicoside was used as a model drug to study the in vitro release in acidic and alkaline pH. Various kinetics models were applied by using a DD solver. Increasing content of monomer and crosslinker swelling, porosity, and drug release decreased while gel content increased. An increase in Aloe vera mucilage concentration promotes swelling, porosity, and drug release of the polymeric network but decreases gel content. The FTIR study confirmed the formation of crosslinked networks. SEM indicated that the polymeric network had a porous structure. DSC and XRD studies indicated the entrapment of drugs inside the polymeric networks in amorphous form. The analytical method was validated according to ICH guidelines in terms of linearity, range, LOD, LOQ, accuracy, precision, and robustness. Analysis of drug release mechanism revealed Fickian behavior of all formulations. All these results indicated that the M1 formulation was considered to be the best polymeric network formulation in terms of sustaining drug release patterns.
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Affiliation(s)
- Arshad Mahmood
- Faculty of Pharmacy, Al Ain University, Abu Dhabi Campus, Abu Dhabi P.O. Box 112612, United Arab Emirates
- AAU Health and Biomedical Research Center (HBRC), Al Ain University, Abu Dhabi P.O. Box 112612, United Arab Emirates
| | - Alia Erum
- Faculty of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
| | - Ume Ruqia Tulain
- Faculty of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
| | - Sharmeen Shafiq
- Faculty of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
| | - Nadia Shamshad Malik
- Faculty of Pharmacy, Capital University of Science and Technology, Islamabad 45800, Pakistan
| | - Muhammad Tariq Khan
- Faculty of Pharmacy, Capital University of Science and Technology, Islamabad 45800, Pakistan
| | - Mohammed S Alqahtani
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11362, Saudi Arabia
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Martinelli FRB, Ribeiro FRC, Marvila MT, Monteiro SN, Filho FDCG, Azevedo ARGD. A Review of the Use of Coconut Fiber in Cement Composites. Polymers (Basel) 2023; 15:polym15051309. [PMID: 36904550 PMCID: PMC10007414 DOI: 10.3390/polym15051309] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
The use of plant fibers in cementitious composites has been gaining prominence with the need for more sustainable construction materials. It occurs due to the advantages natural fibers provide to these composites, such as the reduction of density, fragmentation, and propagation of cracks in concrete. The consumption of coconut, a fruit grown in tropical countries, generates shells that are improperly disposed of in the environment. The objective of this paper is to provide a comprehensive review of the use of coconut fibers and coconut fiber textile mesh in cement-based materials. For this purpose, discussions were conducted on plant fibers, the production and characteristics of coconut fibers, cementitious composites reinforced with coconut fibers, cementitious composites reinforced with textile mesh as an innovative material to absorb coconut fibers, and treatments of coconut fiber for improved product performance and durability. Finally, future perspectives on this field of study have also been highlighted. Thus, this paper aims to understand the behavior of cementitious matrices reinforced with plant fibers and demonstrate that coconut fiber has a high capacity to be used in cementitious composites instead of synthetic fibers.
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Affiliation(s)
- Flávia Regina Bianchi Martinelli
- LAMAV-Advanced Materials Laboratory, Campos dos Goytacazes, State University of the Northern Rio de Janeiro, Campos dos Goytacazes 28013-602, RJ, Brazil
| | | | | | - Sergio Neves Monteiro
- Department of Materials Science, IME-Military Institute of Engineering, Rio de Janeiro 22290-270, RJ, Brazil
| | - Fabio da Costa Garcia Filho
- Department of Materials Science, IME-Military Institute of Engineering, Rio de Janeiro 22290-270, RJ, Brazil
| | - Afonso Rangel Garcez de Azevedo
- LECIV-Civil Engineering Laboratory, UENF-State University of the Northern Rio de Janeiro, Campos dos Goytacazes 28013-602, RJ, Brazil
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Hasan Z, Afroz S, Nipa K, Rahaman MS, Hasnine SMM, Ahmed T, Sultana S, Takafuji M, Alam MA. Adsorption isotherm and kinetics of methylene blue on gamma radiation assisted Starch/Acrylic acid/4-Styrenesulfonic acid sodium salt hydrogel. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2021.1982970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Zahid Hasan
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Sadia Afroz
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Khayrunnahar Nipa
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - M. S. Rahaman
- Institute of Nuclear Science & Technology, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
| | - S. M. M. Hasnine
- Institute of Nuclear Science & Technology, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
| | - Tanvir Ahmed
- Institute of Nuclear Science & Technology, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
| | - Salma Sultana
- Institute of Nuclear Science & Technology, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
| | - Makoto Takafuji
- Department of Applied Chemistry and Biochemistry, Kumamoto University, Kumamoto, Japan
| | - M. A. Alam
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
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pH-Sensitive Hydrogel from Polyethylene Oxide and Acrylic acid by Gamma Radiation. JOURNAL OF COMPOSITES SCIENCE 2019. [DOI: 10.3390/jcs3020058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hydrogel as a good water absorbent has attracted great research interest. A series of hydrogel based on polyethylene oxide (PEO) and acrylic acid (AAc) was prepared by applying gamma radiation with variation in the concentration of acrylic acid. Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) were used to characterize the PEO/ AAc hydrogel. The properties of the prepared hydrogels such as gel content, swelling behavior, tensile strength, and pH sensitivity were evaluated. The formation of the hydrogels was confirmed from FTIR spectra. SEM images showed the inner porous structure of the hydrogels. The dose of gamma radiation was optimized to get a hydrogel with good swelling property and mechanical strength. The swelling ratio and gel content of the hydrogels were increased with increasing acrylic acid content. The pH of the solutions affected the swelling which indicated the pH-responsive property of the prepared hydrogels. Swelling of the prepared hydrogels in sodium chloride salt solutions decreased with increasing the ionic strength.
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Al-Gahtany SA, Shokr FS. Synthesis and characterization of radiation crosslinked nano silver- polyvinyl alcohol/polyethylene oxide composites. J MACROMOL SCI B 2018. [DOI: 10.1080/00222348.2018.1516340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- S. A. Al-Gahtany
- Department of Physics, Faculty of Science for Girls, King Abdulaziz University, Jeddah, Saudi Arabia
| | - F. S. Shokr
- Department of Physics, Faculty of Science & Arts, King Abdulaziz University, Rabigh, Saudi Arabia
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Guo H, Huang J, Ye Y, Huang J, Wang X. Surface modification of polypropylene by the entrapping method using the short-chained stearyl-alcohol poly(ethylene oxide) ether modifier. J Appl Polym Sci 2016. [DOI: 10.1002/app.43607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haofei Guo
- College of Material Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Juexin Huang
- College of Material Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Yuansong Ye
- College of Material Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Jian Huang
- College of Material Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Xiaolin Wang
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 China
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Tulain UR, Ahmad M, Rashid A, Malik MZ, Iqbal FM. Fabrication of pH-Responsive Hydrogel and Its In Vitro and In Vivo Evaluation. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21668] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Mahmood Ahmad
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
| | - Ayesha Rashid
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
| | | | - Furqan Muhammad Iqbal
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
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Wang D, Hill DJ, Rasoul F, Whittaker AK. A study of the swelling and model protein release behaviours of radiation-formed poly(N-vinyl 2-pyrrolidone-co-acrylic acid) hydrogels. Radiat Phys Chem Oxf Engl 1993 2011. [DOI: 10.1016/j.radphyschem.2010.07.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Park CH, Shin DW, Lee YM, Kang PH, Nho YC. Modified Sulfonated Poly(arylene ether sulfone) Membranes Prepared via a Radiation Grafting Method for Fuel Cell Application. Macromol Res 2009. [DOI: 10.1007/bf03218622] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dynamic mechanical properties of natural fiber/polymer biocomposites: The effect of fiber treatment with electron beam. Macromol Res 2008. [DOI: 10.1007/bf03218861] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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