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Khan M, Rahman TU, Shah LA, Akil HM, Fu J, Yoo HM. Multi-role conductive hydrogels for flexible transducers regulated by MOFs for monitoring human activities and electronic skin functions. J Mater Chem B 2024. [PMID: 38832839 DOI: 10.1039/d4tb00718b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Metal organic frameworks (MOFs) have garnered significant attention in the development of stretchable and wearable conductive hydrogels for flexible transducers. However, MOFs used in hydrogel networks have been hampered by low mechanical performance and poor dispersibility in aqueous solutions, which affect the performance of hydrogels, including low toughness, limited self-recovery, short working ranges, low conductivity, and prolonged response-recovery times. To address these shortcomings, a novel approach was adopted in which micelle co-polymerization was used for the ex situ synthesis of Zn-MOF-based hydrogels with exceptional stretchability, robust toughness, anti-fatigue properties, and commendable conductivity. This breakthrough involved the ex situ integration of Zn-MOFs into hydrophobically cross-linked polymer chains. Here the micelles of EHDDAB had two functions, first they uniformly dispersed the Zn-MOFs and secondly they dynamically cross-linked the polymer chains, profoundly influencing the mechanical characteristics of the hydrogels. The non-covalent synergistic interactions introduced by Zn-MOFs endowed the hydrogels with the capacity for high stretchability, high stress, rapid self-recovery, anti-fatigue properties, and conductivity, all achieved without external stimuli. Furthermore, hydrogels based on Zn-MOFs can serve as durable and highly sensitive flexible transducers, adept at detecting diverse mechanical deformations with swift response-recovery times and high gauge factor values. Consequently, these hydrogels can be tailored to function as wearable strain sensors capable of sensing significant human joint movements, such as wrist bending, and motions involving the wrist, fingers, and elbows. Similarly, they excel at monitoring subtle human motions, such as speech pronunciation, distinguishing between different words, as well as detecting swallowing and larynx vibrations during various activities. Beyond these applications, the hydrogels exhibit proficiency in distinguishing and reproducing various written words with reliability. The Zn-MOF-based hydrogels hold promising potential for development in electronic skin, medical monitoring, soft robotics, and flexible touch panels.
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Affiliation(s)
- Mansoor Khan
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan.
| | - Tanzil Ur Rahman
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan.
| | - Luqman Ali Shah
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan.
| | - Hazizan Md Akil
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (USM), 14300 Nibong Tebal, Penang, Malaysia
| | - Jun Fu
- Key Laboratory of Polymeric Composite and Functional Materials, School of Materials Science and Engineering, Sun Yat-sen Uniersity, Guangzhou 510275, China
| | - Hyeong-Min Yoo
- School of Mechanical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan 31253, Republic of Korea.
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2
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Makar LE, Nady N, Shawky N, Kandil SH. Genipin versus Ferric Chloride cross-linked unmodified Gum Arabic/Chitosan/nano-Hydroxyapatite nanocomposite hydrogels as potential scaffolds for bone regeneration. Sci Rep 2023; 13:14402. [PMID: 37658123 PMCID: PMC10474277 DOI: 10.1038/s41598-023-41413-w] [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: 05/07/2023] [Accepted: 08/25/2023] [Indexed: 09/03/2023] Open
Abstract
Ferric chloride (FeCl3) and Genipin were utilized as cross-linkers to create two types of nanocomposite hydrogels through physical and covalent cross-linking methods, respectively. The hydrogels were composed of unmodified Gum Arabic (GA), Chitosan (Ch), and natural nano-Hydroxyapatite (nHA) using an acrylic acid solvent. Both the natural nHA and the FeCl3 vs. genipin cross-linked GA/Ch/nHA nano-composite hydrogels were prepared and characterized using various in vitro and in vivo analysis techniques. The use of FeCl3 and genipin cross-linkers resulted in the formation of novel hydrogels with compressive strengths of (15.43-22.20 MPa), which are comparable to those of natural cortical bone. In vivo evaluation was conducted by creating calvarial defects (6 mm) in Sprague-Dawley male rats. The results showed the formation of new, full-thickness bone at the implantation sites in all groups, as evidenced by digital planar tomography and histological staining with Hematoxylin and Eosin stain (H & E). Additionally, the use of genipin as a cross-linker positively affected the hydrogel's hydrophilicity and porosity. These findings justify further investigation into the potential of these nanocomposite hydrogels for bone regeneration applications.
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Affiliation(s)
- Lara E Makar
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, El-Shatby, Alexandria, 21526, Egypt.
| | - Norhan Nady
- Polymeric Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria, 21934, Egypt.
| | - Neivin Shawky
- Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University, Champollion Street - Azarita, Alexandria, 21526, Egypt
| | - Sherif H Kandil
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, El-Shatby, Alexandria, 21526, Egypt
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3
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Sultan M, Mohamed OA, El-Masry HM, Taha G. Fabrication and evaluation of antimicrobial cellulose/Arabic gum hydrogels as potential drug delivery vehicle. Int J Biol Macromol 2023:125083. [PMID: 37247718 DOI: 10.1016/j.ijbiomac.2023.125083] [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: 02/08/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
This article aims to assess the highly potent antimicrobial hydrogels composed of cellulose and Arabic gum containing sulfadiazine drug (sulfadiazine-loaded Cel/AG) as drug-targeting carriers. ATR-IR, SEM/ EDS, XRD, and XPS methods were used to investigate the hydrogel. The highest water absorption % was 489.93 ± 4.5 at pH 7.4. Pseudo-second order and Fickian diffusion govern the swelling behavior. The maximal sulfadiazine loading percent was 82.291 ± 74. The in-vitro drug release exhibited significant responses in physiologically simulated pH values. The maximum cumulative release percent was 66.42 ± 0.6 % at pH 7.4. The drug release is predicted by the first order and Korsmeyer-Peppas models. The first diffusion coefficient was (Di = 9.207 ± 47 × 10-3 cm2/h) and the late one was (DL = 5.64 ± 9.0 × 10-2 cm2/h) at pH 7.4. That hydrogel is well-thought-out a potential drug delivery vehicle. The thermal stability of the Cel/AG hydrogel drug carrier has been enhanced by the incorporation of sulfadiazine which is evidenced by increasing the total activation approximately two-fold. The total activation energy of Cel/AG and sulfadiazine-loaded Cel/AG hydrogels were -0.07362 and -0.2092 J/mol. The sulfadiazine medication's inhibitory effect was markedly enhanced when it was incorporated into the Cel/AG hydrogel films.
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Affiliation(s)
- Maha Sultan
- Packaging Materials Department, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt
| | - Ola A Mohamed
- Chemistry of Tanning Materials and Leather Technology Department, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt
| | - Hossam Mohammed El-Masry
- Chemistry of Natural and Microbial Products, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt
| | - Ghada Taha
- Pre-treatment and Finishing of Cellulose-based Textiles, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt.
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4
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Dumkor T, Poompradub S. Microcrystalline cellulose from Para rubber leaves as an additive for superabsorbent polymers. Int J Biol Macromol 2023; 233:123556. [PMID: 36746303 DOI: 10.1016/j.ijbiomac.2023.123556] [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: 09/19/2022] [Revised: 01/18/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023]
Abstract
This study prepared microcrystalline cellulose (MCC) from the Para rubber leaves (RL) via mechanical and chemical treatments in order to reduce the amount of waste RL by making it a value added product. The obtained MCC had a cellulose content of 61 % with a high crystallinity index of 67.35 %. The MCC-graft-polyacrylate (MCC-g-PA) was then prepared using N,N'-methylenebisacrylamide (MBA) at 0.05 wt% of acrylic acid via radical polymerization, and was then used as an additive in PA superabsorbent polymers (SAP). The presence of 0.05 g MCC-g-PA in PA (0.1 g) was found to exhibit a 1.17-fold greater water absorbency than the neat PA SAP, which was due to the increased level of hydroxyl and carboxylate groups from the added MCC-g-PA. The MCC-g-PA/PA SAP exhibited a similar reusability to the commercial SAP and could be degraded via cellulase and laccase enzymes.
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Affiliation(s)
- Tipapan Dumkor
- Program in Petrochemistry and Polymer Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sirilux Poompradub
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence in Green Materials for Industrial Application, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand.
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Li Y, Yao M, Luo Y, Li J, Wang Z, Liang C, Qin C, Huang C, Yao S. Polydopamine-Reinforced Hemicellulose-Based Multifunctional Flexible Hydrogels for Human Movement Sensing and Self-Powered Transdermal Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2023; 15:5883-5896. [PMID: 36689627 DOI: 10.1021/acsami.2c19949] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The preparation of bio-based hydrogels with excellent mechanical properties, stable electrochemical properties, and self-adhesive properties remains a challenge. In this study, nano-polydopamine-reinforced hemicellulose-based hydrogels with typical multistage pore structures were prepared. The nanocomposite hydrogels exhibit stable mechanical properties and show no significant crushing phenomenon after 1000 cycles of cyclic compression. Its ultimate tensile strain was 101%, which is significantly higher than that of native skin. The shear adhesion strength of the hydrogel to skin tissue reaches 7.52 kPa, which is better than fibrin glue (Greenplast) (5 kPa), and the excellent adhesion property prolongs the service time of the hydrogel in biomedicine applications. The impedance of the hydrogel was reduced and the electrical conductivity was increased with the addition of nano-polydopamine. The prepared nanocomposite hydrogel can detect various body movements (even throat vibrations) in real time as a motion sensor while being able to rapidly load cationic drugs and facilitate transdermal introduction of electrically stimulated drug ions as a drug patch. It provides theoretical support for the fabrication of hemicellulose-based hydrogels with excellent properties through molecular design and nanoparticle reinforcement. This has important implications for the development of next-generation flexible materials suitable for health monitoring and self-administration.
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Affiliation(s)
- Yan Li
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
| | - Mingzhu Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
| | - Yadan Luo
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
| | - Jiao Li
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
| | - Zengling Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
| | - Chen Liang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
| | - Chengrong Qin
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
| | - Caoxing Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, PR China
| | - Shuangquan Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning530004, PR China
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6
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Khan M, Shah LA, Rahman TU, Yoo HM, Ye D, Vacharasin J. Cellulose nanocrystals boosted hydrophobic association in dual network polymer hydrogels as advanced flexible strain sensor for human motion detection. J Mech Behav Biomed Mater 2023; 138:105610. [PMID: 36509014 DOI: 10.1016/j.jmbbm.2022.105610] [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: 11/16/2022] [Revised: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Conductive hydrogels attract the attention of researchers worldwide, especially in the field of flexible sensors like strain and pressure. These flexible materials have potential applications in the field of electronic skin, soft robotics, energy storage, and human motion detection. However, its practical application is limited due to low stretchability, high hysteresis energy, low conductivity, long-range strain sensitivity, and high response time. It's still a challenging job to endow all these properties in a single hydrogel network. In the present work, cellulose nano crystals (CNCs) reinforced hydrophobically associated gels were developed using APS as a source of radical polymerization, acrylamide and lauryl methacrylate were used as a monomer. CNCs reinforced the hydrophobically associated hydrogels through hydrogen bonding to retain the hydrogel's network structure. Hydrogels consist of dual crosslinking, which demonstrate exceptional mechanical performance (fracture stress and strain, toughness, and Young's modulus). The low hysteresis energy (10.9 kJm-3) and high conductivity (22.97 mS/cm) make the hydrogels a strong candidate for strain sensors with high sensitivity (GF = 19.25 at 700% strain) and a fast response time of 200 ms. Cyclic performance was also investigated up to 300 continuous cycles. After 300 cycles, the hydrogels were still stable and no considerable change was observed. These hydrogels are capable of sensing different human motions like wrist, finger bending, and neck (up-down and straight and right/left motion of neck). The hydrogels also demonstrate changes in current in response to swallowing, different speaking words, and writing different alphabets. These results suggest that our prepared materials can sense different small and large human motions, and also could be used in any electronic device where strain sensing is required.
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Affiliation(s)
- Mansoor Khan
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Luqman Ali Shah
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan.
| | - Tanzil Ur Rahman
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Hyeong-Min Yoo
- School of Mechanical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan, 31253, Republic of Korea
| | - Daixin Ye
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, PR China.
| | - Janay Vacharasin
- Department of Biology, Francis Marion University, Florence, 29506, United States
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7
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Magnetite graphene oxide-doped superadsorbent hydrogel for efficient removal of crystal violet from wastewater. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02662-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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8
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Adjusting Some Properties of Poly(methacrylic acid) (Nano)Composite Hydrogels by Means of Silicon-Containing Inorganic Fillers. Int J Mol Sci 2022; 23:ijms231810320. [PMID: 36142243 PMCID: PMC9499409 DOI: 10.3390/ijms231810320] [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: 08/08/2022] [Revised: 09/01/2022] [Accepted: 09/04/2022] [Indexed: 11/16/2022] Open
Abstract
The present work aims to show how the main properties of poly(methacrylic acid) (PMAA) hydrogels can be engineered by means of several silicon-based fillers (Laponite XLS/XLG, montmorillonite (Mt), pyrogenic silica (PS)) employed at 10 wt% concentration based on MAA. Various techniques (FT-IR, XRD, TGA, SEM, TEM, DLS, rheological measurements, UV-VIS) were used to comparatively study the effect of these fillers, in correlation with their characteristics, upon the structure and swelling, viscoelastic, and water decontamination properties of (nano)composite hydrogels. The experiments demonstrated that the nanocomposite hydrogel morphology was dictated by the way the filler particles dispersed in water. The equilibrium swelling degree (SDe) depended on both the pH of the environment and the filler nature. At pH 1.2, a slight crosslinking effect of the fillers was evidenced, increasing in the order Mt < Laponite < PS. At pH > pKaMAA (pH 5.4; 7.4; 9.5), the Laponite/Mt-containing hydrogels displayed a higher SDe as compared to the neat one, while at pH 7.4/9.5 the PS-filled hydrogels surprisingly displayed the highest SDe. Rheological measurements on as-prepared hydrogels showed that the filler addition improved the mechanical properties. After equilibrium swelling at pH 5.4, G’ and G” depended on the filler, the Laponite-reinforced hydrogels proving to be the strongest. The (nano)composite hydrogels synthesized displayed filler-dependent absorption properties of two cationic dyes used as model water pollutants, Laponite XLS-reinforced hydrogel demonstrating both the highest absorption rate and absorption capacity. Besides wastewater purification, the (nano)composite hydrogels described here may also find applications in the pharmaceutical field as devices for the controlled release of drugs.
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9
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Self-healable poly-(acrylic acid)@Fe/Ni hybrid hydrogel membrane for Cr(VI) removal from industrial wastewater. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04454-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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10
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Faizan S, Bakhtawara, Zaid F. Detection and removal of Congo red via aniline-based polymer and polymer composite. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04432-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Makar LE, Nady N, Abd El-Fattah A, Shawky N, Kandil SH. Unmodified Gum Arabic/Chitosan/Nanohydroxyapatite Nanocomposite Hydrogels as Potential Scaffolds for Bone Regeneration. Polymers (Basel) 2022; 14:polym14153052. [PMID: 35956568 PMCID: PMC9370697 DOI: 10.3390/polym14153052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 02/07/2023] Open
Abstract
In this work, physical cross-linking was used to create nanocomposite hydrogels composed of unmodified gum arabic (GA), chitosan (Ch), and natural nanohydroxyapatite (nHA), using an acrylic acid (AA) solvent. Different GA/chitosan contents (15%, 25%, and 35% of the used AA) as well as different nHA contents (2, 5, and 10 wt.%), were used and studied. The natural nHA and the fabricated GA/Ch/nHA nanocomposite hydrogels were characterized using different analysis techniques. Using acrylic acid solvent produced novel hydrogels with compressive strength of 15.43–22.20 MPa which is similar to that of natural cortical bone. The addition of natural nHA to the hydrogels resulted in a significant improvement in the compressive strength of the fabricated hydrogels. In vitro studies of water absorption and degradation—and in vivo studies—confirmed that the nanocomposite hydrogels described here are biodegradable, biocompatible, and facilitate apatite formation while immersed in the simulated body fluid (SBF). In light of these findings, the GA/Ch/nHA nanocomposite hydrogels are recommended for preparing bioactive nanoscaffolds for testing in bone regeneration applications.
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Affiliation(s)
- Lara E. Makar
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, El-Shatby, Alexandria 21526, Egypt; (A.A.E.-F.); (S.H.K.)
- Correspondence: or (L.E.M.); (N.N.); Tel.: +20-1227289592 (L.E.M.); +20-1090918521 (N.N.)
| | - Norhan Nady
- Polymeric Materials Research Department, City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
- Correspondence: or (L.E.M.); (N.N.); Tel.: +20-1227289592 (L.E.M.); +20-1090918521 (N.N.)
| | - Ahmed Abd El-Fattah
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, El-Shatby, Alexandria 21526, Egypt; (A.A.E.-F.); (S.H.K.)
- Department of Chemistry, College of Science, University of Bahrain, Sakhir P.O. Box 32038, Bahrain
| | - Neivin Shawky
- Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University, Champollion Street—Azarita, Alexandria 21526, Egypt;
| | - Sherif H. Kandil
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, El-Shatby, Alexandria 21526, Egypt; (A.A.E.-F.); (S.H.K.)
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12
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Faizan S, Shah LA, Bakhtawara, Ye D, Ahmad F, Khan M, Ismail M. Effects of Cu 2+/Zn 2+ on the electrochemical performance of polyacrylamide hydrogels as advanced flexible electrode materials. RSC Adv 2022; 12:19072-19085. [PMID: 35865600 PMCID: PMC9244644 DOI: 10.1039/d2ra02391a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022] Open
Abstract
Previously, solid-state electrode materials have been utilized for the fabrication of energy storage devices; however, their application is impeded by their brittle nature and ion mobility problems. To address issues faced in such a modern era where energy saving and utility is of prior importance, a novel approach has been applied for the preparation of electrode materials based on polyacrylamide hydrogels embedded with reduced graphene oxide and transition metals, namely, Cu2+ and Zn2+. The fabricated hydrogel exhibits high electrical properties and flexibility that make it a favorable candidate to be used in energy storage devices, where both elastic and electrical properties are desired. For the first time, a multi-cross-linked polyacrylamide hydrogel was constructed and compared in the presence of other electro-active materials such as reduced graphene oxide and transition metals. Polyacrylamide hydrogels embedded with reduced graphene oxide demonstrate excellent electrical properties such as specific capacitance, least impedance, low phase angle shift and AC conductivity of 22.92 F g-1, 2115 Ω, 2.88° and 0.67 μδ m-1 respectively as compared to Cu2+- and Zn2+-loaded hydrogels, which block all available active sites causing an increase in impedance with a parallel decrease in capacitance. The capacitance retention and coulombic efficiency calculated were 88.22% and 77.23% respectively, indicating high stability up to 150 cycles at 0.1 A g-1. Storage moduli obtained were 10.52 kPa, which infers the more elastic nature of the hydrogel loaded with graphene oxide than that of other synthesized hydrogels.
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Affiliation(s)
- Syed Faizan
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar Peshawar 25120 Pakistan +92919216671 +92919216766
| | - Luqman Ali Shah
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar Peshawar 25120 Pakistan +92919216671 +92919216766
| | - Bakhtawara
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar Peshawar 25120 Pakistan +92919216671 +92919216766
| | - Daixin Ye
- Institute for Sustainable Energy, College of Sciences, Shanghai University Shanghai 200444 PR China
| | - Fawad Ahmad
- Department of Chemistry, University of Wah Quaid Avenue, Wah Cantt. Rawalpindi Punjab Pakistan
| | - Musammir Khan
- Department of Chemistry, University of Wah Quaid Avenue, Wah Cantt. Rawalpindi Punjab Pakistan
| | - Muhammad Ismail
- Department of Chemistry, Women University Swabi Khyber Pakhtunkhwa Pakistan
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13
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Aziz T, Ullah A, Ali A, Shabeer M, Shah MN, Haq F, Iqbal M, Ullah R, Khan FU. Manufactures of bio‐degradable and bio‐based polymers for bio‐materials in the pharmaceutical field. J Appl Polym Sci 2022. [DOI: 10.1002/app.52624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tariq Aziz
- School of Engineering Westlake University Hangzhou China
| | - Asmat Ullah
- School of Pharmacy Xi'an Jiaotong University Shaanxi China
| | - Amjad Ali
- Institute of Polymer Material, School of Material Science & Engineering Jiangsu University Zhenjiang China
| | | | - Muhammad Naeem Shah
- College of Electronics and Information Engineering Shenzhen University Shenzhen China
| | - Fazal Haq
- Department of Chemistry Gomal University D I Khan KPK Pakistan
| | - Mudassir Iqbal
- College of Chemical and Biological Engineering Zhejiang University Hangzhou China
| | - Roh Ullah
- School of Chemistry and Chemical Engineering Beijing Institute of Technology (BIT) Beijing China
| | - Farman Ullah Khan
- Department of Chemistry University of Science & Technology, Bannu KPK Pakistan
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14
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Preparation of Electrochemical Supercapacitor Based on Polypyrrole/Gum Arabic Composites. Polymers (Basel) 2022; 14:polym14020242. [PMID: 35054647 PMCID: PMC8781447 DOI: 10.3390/polym14020242] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/01/2022] [Accepted: 01/04/2022] [Indexed: 02/04/2023] Open
Abstract
The current research focused on the super capacitive behavior of organic conducting polymer, i.e., polypyrrole (PPy) and its composites with gum arabic (GA) prepared via inverse emulsion polymerization. The synthesized composites material was analyzed by different analytical techniques, such as UV-visible, FTIR, TGA, XRD, and SEM. The UV-Vis and FTIR spectroscopy clearly show the successful insertion of GA into PPy matrix. The TGA analysis shows high thermal stability for composites than pure PPy. The XRD and SEM analysis show the crystalline and amorphous structures and overall morphology of the composites is more compact and mesoporous as compared to the pure PPy. The electrochemical properties of modified solid state supercapacitors established on pure polypyrrole (PPy), polypyrrole/gum arabic (PPy/GA) based composites were investigated through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge–discharge (GCD). The specific capacitance of the PPy modified gold electrode is impressive (~168 F/g). The specific capacitance of PPy/GA 1 electrode has been increased to 368 F/g with a high energy density and power density (~73 Wh/kg), and (~599 W/kg) respectively.
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15
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Irfan M, Shah LA, Khan A, Farooq M, Ullah M, Ismail M. Formulation of zwitter-ionic terpolymeric hydrogels and their comprehensive rheological investigation. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2021.2021090] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Muhammad Irfan
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, Pakistan
| | - Luqman Ali Shah
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, Pakistan
| | - Abbas Khan
- Department of Chemistry, Abdul Wali Khan University, Mardan, Pakistan
| | - Muhammad Farooq
- Department of Chemistry, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Mohib Ullah
- Department of Chemistry, Balochistan University of Information Technology Engineering and Management Sciences Takatu Campus, Quetta, Pakistan
| | - Muhammad Ismail
- Department of Chemistry, Women University Swabi, Khyber Pakhtunkhwa, Pakistan
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16
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Bakhtawara, Faizan S, Shah LA. The development of durable ter-copolymer hydrogels for solid surfaces repairing. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126684] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Li L, Zheng X, Pan C, Pan H, Guo Z, Liu B, Liu Y. A pH-sensitive and sustained-release oral drug delivery system: the synthesis, characterization, adsorption and release of the xanthan gum- graft-poly(acrylic acid)/GO-DCFP composite hydrogel. RSC Adv 2021; 11:26229-26240. [PMID: 35479455 PMCID: PMC9037311 DOI: 10.1039/d1ra01012c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 07/16/2021] [Indexed: 11/26/2022] Open
Abstract
In this study, graphene oxide (GO) was successfully prepared using the improved Hummers method, and the prepared GO powder was dissolved in distilled water and subjected to ultrasonic stripping. Diclofenac potassium (DCFP) was selected as a model drug to systematically evaluate the adsorption mechanism of DCFP by GO. Different reaction models were constructed to fit the adsorption kinetics and adsorption isotherms of DCFP on GO, in order to further explore the underlying adsorption mechanism. The results demonstrated that the pseudo-second-order kinetic model and Freundlich model could better delineate the adsorption process of DCFP by GO. Both π–π stacking and hydrophobic interaction were mainly involved in the adsorption process, and there were electrostatic interaction and hydrogen bonding at the same time. Then, the xanthan gum-graft-poly(acrylic acid)/GO (XG-g-PAA/GO) composite hydrogel was synthesized by in situ polymerization as a slow-release drug carrier. For this reason, a XG-g-PAA/GO–DCFP composite hydrogel was synthesized, and its in vitro drug release and pharmacokinetic data were assessed. The results showed that the synthesized XG-g-PAA/GO composite hydrogel had a certain mechanical strength and uniform color, indicating that GO is evenly distributed in this composite hydrogel. Moreover, the results of a swelling ratio test demonstrated that the swelling ratios of the XG-g-PAA/GO composite hydrogel were significantly increased with increasing pH values, implying that this material is sensitive to pH. The in vitro drug release experiment showed that the cumulative release of DCFP after 96 h was significantly higher in artificial intestinal fluid than in artificial gastric fluid. These findings indicate that the XG-g-PAA/GO–DCFP composite hydrogel exhibits pH sensitivity under physiological conditions. Besides, the results of in vivo pharmacokinetic analysis revealed that the t1/2 of DCFP group was 2.03 ± 0.35 h, while that of the XG-g-PAA/GO–DCFP composite hydrogel group was 10.71 ± 2.04 h, indicating that the synthesized hydrogel could effectively prolong the drug action time. Furthermore, the AUC(0–t) of the DCFP group was 53.99 ± 3.18 mg L−1 h−1, while that of the XG-g-PAA/GO–DCFP composite hydrogel group was 116.79 ± 14.72 mg L−1 h−1, suggesting that the bioavailability of DCFP is greatly enhanced by this composite hydrogel. In conclusion, this study highlights that the XG-g-PAA/GO–DCFP composite hydrogel can be applied as a sustained-release drug carrier. In this study, graphene oxide (GO) was successfully prepared using the improved Hummers method, and the prepared GO powder was dissolved in distilled water and subjected to ultrasonic stripping.![]()
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Affiliation(s)
- Li Li
- School of Pharmacy, Liaoning University Shenyang 110036 China .,Liaoning Key Laboratory of New Drug Research & Development Shenyang 110036 China
| | - Xiyan Zheng
- School of Pharmacy, Liaoning University Shenyang 110036 China
| | - Chunjiao Pan
- School of Pharmacy, Liaoning University Shenyang 110036 China
| | - Hao Pan
- School of Pharmacy, Liaoning University Shenyang 110036 China
| | - Zhongqiu Guo
- School of Pharmacy, Liaoning University Shenyang 110036 China
| | - Bingmi Liu
- School of Pharmacy, Liaoning University Shenyang 110036 China .,Liaoning Pharmaceutical Engineering Research Center for Natural Medicine Shenyang 110036 China
| | - Yu Liu
- School of Pharmacy, Liaoning University Shenyang 110036 China .,Liaoning Key Laboratory of New Drug Research & Development Shenyang 110036 China
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18
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Khan SA, Shah LA, Shah M, Jamil I. Engineering of 3D polymer network hydrogels for biomedical applications: a review. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03638-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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19
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Shao T, Gong Y, Chen X, Chen L. Preparation and characterization of modified self-crosslinking fluorocarbon acrylate latex. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01350-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Zhang W, Zhang Y, Zhang Y, Dai Y, Xia F, Zhang X. Adhesive and tough hydrogels: from structural design to applications. J Mater Chem B 2021; 9:5954-5966. [PMID: 34254103 DOI: 10.1039/d1tb01166a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In recent years, multifunctional hydrogels have garnered great interest. Usually, there is a contradiction between the toughness and interface adhesion of traditional hydrogels. In engineering and medical applications, hydrogels need to have good adhesive properties and toughness. The design of functional hydrogels with strong adhesion and high toughness is key to their application. In this review, the research progress of adhesive and tough hydrogels in recent years is outlined. Specifically, the structural design (such as integrated, layered, and gradient structures) and applications (such as cartilage repair, drug delivery, strain sensors, tissue adhesives, soft actuators, and supercapacitors) of adhesive and tough hydrogels are classified and discussed, providing new insights on their design and development.
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Affiliation(s)
- Wanglong Zhang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yiwei Zhang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yuchen Zhang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yu Dai
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Fan Xia
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Xiaojin Zhang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
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