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Alharbi HY, Alnoman RB, Aljohani MS, Al-Anazia M, Monier M. Synthesis and characterization of gellan gum-based hydrogels for drug delivery applications. Int J Biol Macromol 2024; 258:128828. [PMID: 38141700 DOI: 10.1016/j.ijbiomac.2023.128828] [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: 09/25/2023] [Revised: 12/01/2023] [Accepted: 12/13/2023] [Indexed: 12/25/2023]
Abstract
In this study, gellan gum (Gel) derivatives were allowed to interact via aqueous Diels-Alder chemistry without the need for initiators, producing a crosslinked hydrogel network that exhibited good potential as a drug carrier using tramadol as a drug model. Hydrogel conjugation was achieved by the synthesis of a maleimide and furan-functionalized Gel, and the pre- and post-gelation chemical structure of the resulting hydrogel precursors was fully investigated. Potential uses of the developed hydrogel in the pharmaceutical industry were also evaluated by looking at its gelation duration, temperature, morphologies, swelling, biodegradation, and mechanical characteristics. The Gel-FM hydrogels were safe, showed good antimicrobial activity, and had a low storage modulus, which meant that they could be used in many biochemical fields. The encapsulation and release of tramadol from the hydrogel system in phosphate-buffered saline (PBS) at 37 °C were investigated under acidic and slightly alkaline conditions, replicating the stomach and intestinal tracts, respectively. The in-vitro release profile showed promising results for drug encapsulation, revealing that the drug could safely be well-encapsulated in acidic stomach environments and released more quickly in slightly alkaline intestinal environments. This implies that the hydrogels produced could work well as polymers for specifically delivering medication to the colon.
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Affiliation(s)
- Hussam Y Alharbi
- Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia.
| | - Rua B Alnoman
- Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia
| | - Majed S Aljohani
- Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia
| | - Menier Al-Anazia
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71421, Saudi Arabia
| | - M Monier
- Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia; Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt.
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2
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Self-Healing and Reprocessable Oleic Acid-Based Elastomer with Dynamic S-S Bonds as Solvent-Free Reusable Adhesive on Copper Surface. Polymers (Basel) 2022; 14:polym14224919. [PMID: 36433046 PMCID: PMC9695700 DOI: 10.3390/polym14224919] [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: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
In the last decade, the application of dynamic covalent chemistry in the field of polymeric materials has become the subject of an increasing number of studies, gaining applicative relevance. This is due to the fact that polymers containing dynamic functions possess a structure that affords reprocessability, recyclability and peculiar self-healing properties inconceivable for "classic" polymer networks. Consequently, the synthesis of a dynamic covalent chemistry-based polymer and its chemical, thermal, and mechanical characterizations are reported in the present research. In particular, oleic acid has been used as starting material to follow the founding principles of the circular economy system and, thanks to the aromatic disulfide component, which is the foundation of the material dynamic characteristics, the obtained polymer resulted as being reprocessable and self-healable. Moreover, the polymer can strongly interact with copper surfaces through the formation of stable Cu-S bonds. Then, the application of the polymer as a solvent-free reusable adhesive for copper was investigated by lap joint shear tests and comparisons with the properties of an analogous material, devoid of the disulfide bonds, were conducted.
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Rigid, stretchable and full recyclable cellulose reinforced thermoset elastomer composites for photothermal conversion and Joule heating. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Mhiri S, Abid M, Abid S, Prochazka F, Pillon C, Mignard N. Green synthesis of covalent hybrid hydrogels containing PEG/PLA-based thermoreversible networks. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03153-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Arrizabalaga JH, Smallcomb M, Abu-Laban M, Liu Y, Yeingst TJ, Dhawan A, Simon JC, Hayes DJ. Ultrasound-Responsive Hydrogels for On-Demand Protein Release. ACS APPLIED BIO MATERIALS 2022; 5:3212-3218. [PMID: 35700312 PMCID: PMC10496416 DOI: 10.1021/acsabm.2c00192] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The development of tunable, ultrasound-responsive hydrogels that can deliver protein payload on-demand when exposed to focused ultrasound is described in this study. Reversible Diels-Alder linkers, which undergo a retro reaction when stimulated with ultrasound, were used to cross-link chitosan hydrogels with entrapped FITC-BSA as a model protein therapeutic payload. Two Diels-Alder linkage compositions with large differences in the reverse reaction energy barriers were compared to explore the influence of linker composition on ultrasound response. Selected physicochemical properties of the hydrogel construct, its basic degradation kinetics, and its cytocompatibility were measured with respect to Diels-Alder linkage composition. Focused ultrasound initiated the retro Diels-Alder reaction, controlling the release of the entrapped payload while also allowing for real-time visualization of the ongoing process. Additionally, increasing the focused ultrasound amplitude and time correlated with an increased rate of protein release, indicating stimuli responsive control.
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Affiliation(s)
- Julien H Arrizabalaga
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Molly Smallcomb
- Graduate Program in Acoustics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Mohammad Abu-Laban
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Yiming Liu
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Tyus J Yeingst
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Aman Dhawan
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania 17033, United States
| | - Julianna C Simon
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Graduate Program in Acoustics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Daniel J Hayes
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Materials Research Institute, Millennium Science Complex, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- The Huck Institute of the Life Sciences, Millennium Science Complex, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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6
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Cross-Linking of Polypropylene with Thiophene and Imidazole. Polymers (Basel) 2022; 14:polym14112198. [PMID: 35683871 PMCID: PMC9182647 DOI: 10.3390/polym14112198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 11/18/2022] Open
Abstract
In this work, two novel routes to synthesis cross-linked polypropylene (PP) are introduced by using two different precursors (2-thiophenemethyl amine (TMA) and 1-(3 aminopropyl) imidazole (API)), both cross-linked with 1,1′-(methylenedi-4,1-phenylene) bismaleimide (BM) at two different annealing temperature values (T = 50 °C and T = 150 °C). Both Diels–Alder (DA) and Michael addition reactions were successfully performed with TMA and API, respectively, albeit with different reactivity. Imidazole clearly shows a higher reactivity compared to thiophene. In addition, an increase in annealing temperature leads to a higher degree of cross-linking. The highest degree of cross-linking was obtained by the imidazole product after annealing at 150 °C (IMG1A150) as evident from the highest complex viscosity (|η*|) value of IMG1A150. A difference in rheology and thermal properties between the imidazole and thiophene cross-linked products was also observed. However, both products have superior melt properties and thermal stability compared with the starting material. They show processability at high temperatures. The melt flow behavior and de-cross-linking at higher temperatures can be tuned depending on the choice of imidazole or thiophene. This study shows an advance on the cross-linked PP processing and its product performances for further application on the commercial scale.
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'Click' synthesized non-substituted triazole modified chitosan from CaC2 as a novel antibacterial and antioxidant polymer. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03032-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Shahi S, Roghani-Mamaqani H, Talebi S, Mardani H. Chemical stimuli-induced reversible bond cleavage in covalently crosslinked hydrogels. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Alkabli J. Progress in preparation of thiolated, crosslinked, and imino-chitosan derivatives targeting specific applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.110998] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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10
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Holloway JO, Taplan C, Du Prez F. Combining vinylogous urethane and β-amino ester chemistry for dynamic material design. Polym Chem 2022. [DOI: 10.1039/d2py00026a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study combines vinylogous urethane (VU) and beta-amino ester chemistry for the synthesis of covalent adaptable networks (CANs). The resulting CANs are synthesised using a range of diacetoacetates and commercially...
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Liu F, Liu X, Chen F, Fu Q. Mussel-inspired chemistry: A promising strategy for natural polysaccharides in biomedical applications. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101472] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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12
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Elhag M, Abdelwahab HE, Mostafa MA, Yacout GA, Nasr AZ, Dambruoso P, El Sadek MM. One pot synthesis of new cross-linked chitosan-Schiff' base: Characterization, and anti-proliferative activities. Int J Biol Macromol 2021; 184:558-565. [PMID: 34174299 DOI: 10.1016/j.ijbiomac.2021.06.137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/15/2021] [Accepted: 06/20/2021] [Indexed: 12/19/2022]
Abstract
Four novel chitosan hydrogels were successfully synthesized through the cross-linking reaction of chitosan with different concentrations of ethyl 5-(3,5-dihydroxy-1,4-dioxan-2-yl)-2-methylfuran-3-carboxylate. Their structures were confirmed by Fourier transform infrared spectroscopy (FT-IR), 13C Cross polarization magic angle spinning nuclear magnetic resonance spectroscopy (CP/MAS 13C NMR), ultraviolet-visible spectroscopy, thermogravimetric analysis (TGA, DTA), and X-ray diffraction (XRD). Cytotoxicity on hepatocellular carcinoma (HepG-2) cell line and a normal African green monkey kidney (Vero) cell line were studied using the MTT assay. The resultant hydrogels showed a good inhibitory effect comparing to the un-modified parent; the hydrogels with the lowest degree cross-linking (0.125 and 0.25 mol cross-linker per one chitosan residue) showed potent anticancer activity in the HepG2 cells with IC50 of 57.9 and 80.9 μg/ml, respectively. These results show that the newly synthesized cross-linked chitosan derivatives demonstrated more selectivity to the HepG2 than the Vero cells, indicating its potential for Investigation in the cure of hepatocellular carcinoma.
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Affiliation(s)
- Mohammed Elhag
- Chemistry Department, Faculty of Science, Damnhour University, 22511 Damnhour, Egypt
| | - Huda E Abdelwahab
- Chemistry Department, Faculty of Science, Alexandria University, 21231 Alexandria, Egypt; Institute of Graduate Studies and Research (IGSR), Alexandria University, 21526 Alexandria, Egypt
| | - Mohamed A Mostafa
- Chemistry Department, Faculty of Science, Alexandria University, 21231 Alexandria, Egypt
| | - Galila A Yacout
- Biochemistry Department, Faculty of Science, Alexandria University, 21231 Alexandria, Egypt
| | - Adel Z Nasr
- Chemistry Department, Faculty of Science, Damnhour University, 22511 Damnhour, Egypt
| | - Paolo Dambruoso
- Institute of Organic Synthesis and Photoreactivity, National Research Council (CNR), Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Mohamed M El Sadek
- Chemistry Department, Faculty of Science, Alexandria University, 21231 Alexandria, Egypt.
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13
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Taplan C, Guerre M, Du Prez FE. Covalent Adaptable Networks Using β-Amino Esters as Thermally Reversible Building Blocks. J Am Chem Soc 2021; 143:9140-9150. [PMID: 34121401 DOI: 10.1021/jacs.1c03316] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this study, β-amino esters, prepared by the aza-Michael addition of an amine to an acrylate moiety, are investigated as building blocks for the formation of dynamic covalent networks. While such amino esters are usually considered as thermally nondynamic adducts, the kinetic model studies presented here show that dynamic covalent exchange occurs via both dynamic aza-Michael reaction and catalyst-free transesterification. This knowledge is transferred to create β-amino ester-based covalent adaptable networks (CANs) with coexisting dissociative and associative covalent dynamic exchange reactions. The ease, robustness, and versatility of this chemistry are demonstrated by using a variety of readily available multifunctional acrylates and amines. The presented CANs are reprocessed via either a dynamic aza-Michael reaction or a catalyst-free transesterification in the presence of hydroxyl moieties. This results in reprocessable, densely cross-linked materials with a glass transition temperature (Tg) ranging from -60 to 90 °C. Moreover, even for the low Tg materials, a high creep resistance was demonstrated at elevated temperatures up to 80 °C. When additional β-hydroxyl group-containing building blocks are applied during the network design, an enhanced neighboring group participation effect allows reprocessing of materials up to 10 times at 150 °C within 30 min while maintaining their material properties.
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Affiliation(s)
- Christian Taplan
- Polymer Chemistry Research Group, Center of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Science, Ghent University, Krijgslaan 281 S4-bis, Ghent B-9000, Belgium
| | - Marc Guerre
- Polymer Chemistry Research Group, Center of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Science, Ghent University, Krijgslaan 281 S4-bis, Ghent B-9000, Belgium.,Laboratoire des IMRCP, Université de Toulouse, CNRS UMR5623, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Filip E Du Prez
- Polymer Chemistry Research Group, Center of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Science, Ghent University, Krijgslaan 281 S4-bis, Ghent B-9000, Belgium
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Chapelle C, David G, Caillol S, Negrell C, Desroches Le Foll M. Advances in chitooligosaccharides chemical modifications. Biopolymers 2021; 112:e23461. [PMID: 34115397 DOI: 10.1002/bip.23461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 01/25/2023]
Abstract
Chitooligosaccharides (COS) differ from chitosan by their molar mass: those of COS are defined to be lower than 20 kg mol-1 . Their functionalization is widely described in the literature and leads to the introduction of new properties that broaden their application fields. Like chitosan, COS modification sites are mainly primary amine and hydroxyl groups. Among their chemical modification, one can find amidation or esterification, epoxy-amine/hydroxyl coupling, Schiff base formation, and Michael addition. When depolymerized through nitrous deamination, COS bear an aldehyde at the chain end that can open the way to other chemical reactions and lead to the synthesis of new interesting amphiphilic structures. This article details the recent developments in COS functionalization, primarily focusing on amine and hydroxyl groups and aldehyde-chain end reactions, as well as paying considerable attention to other types of modification. We also describe and compare the different functionalization protocols found in the literature while highlighting potential mistakes made in the chemical structures accompanied with suggestions. Such chemical modification can lead to new materials that are generally nontoxic, biobased, biodegradable, and usable in various applications.
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Affiliation(s)
| | - Ghislain David
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | | - Claire Negrell
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
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