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Tanwar M, Gupta RK, Rani A. Natural gums and their derivatives based hydrogels: in biomedical, environment, agriculture, and food industry. Crit Rev Biotechnol 2024; 44:275-301. [PMID: 36683015 DOI: 10.1080/07388551.2022.2157702] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/04/2022] [Accepted: 11/14/2022] [Indexed: 01/24/2023]
Abstract
The hydrogels based on natural gums and chemically derivatized natural gums have great interest in pharmaceutical, food, cosmetics, and environmental remediation, due to their: economic viability, sustainability, nontoxicity, biodegradability, and biocompatibility. Since these natural gems are from plants, microorganisms, and seaweeds, they offer a great opportunity to chemically derivatize and modify into novel, innovative biomaterials as scaffolds for tissue engineering and drug delivery. Derivatization improves swelling properties, thereby developing interest in agriculture and separating technologies. This review highlights the work done over the past three and a half decades and the possibility of developing novel materials and technologies in a cost-effective and sustainable manner. This review has compiled various natural gums, their source, chemical composition, and chemically derivatized gums, various methods to synthesize hydrogel, and their applications in biomedical, food and agriculture, textile, cosmetics, water purification, remediation, and separation fields.
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Affiliation(s)
- Meenakshi Tanwar
- Department of Applied Chemistry, Delhi Technological University, Delhi, India
| | - Rajinder K Gupta
- Department of Applied Chemistry, Delhi Technological University, Delhi, India
| | - Archna Rani
- Department of Applied Chemistry, Delhi Technological University, Delhi, India
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Recent Developments in Polymer Nanocomposites for Bone Regeneration. Int J Mol Sci 2023; 24:ijms24043312. [PMID: 36834724 PMCID: PMC9959928 DOI: 10.3390/ijms24043312] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/21/2023] [Accepted: 01/26/2023] [Indexed: 02/11/2023] Open
Abstract
Most people who suffer acute injuries in accidents have fractured bones. Many of the basic processes that take place during embryonic skeletal development are replicated throughout the regeneration process that occurs during this time. Bruises and bone fractures, for example, serve as excellent examples. It almost always results in a successful recovery and restoration of the structural integrity and strength of the broken bone. After a fracture, the body begins to regenerate bone. Bone formation is a complex physiological process that requires meticulous planning and execution. A normal healing procedure for a fracture might reveal how the bone is constantly rebuilding as an adult. Bone regeneration is becoming more dependent on polymer nanocomposites, which are composites made up of a polymer matrix and a nanomaterial. This study will review polymer nanocomposites that are employed in bone regeneration to stimulate bone regeneration. As a result, we will introduce the role of bone regeneration nanocomposite scaffolds, and the nanocomposite ceramics and biomaterials that play a role in bone regeneration. Aside from that, recent advances in polymer nanocomposites might be used in a variety of industrial processes to help people with bone defects overcome their challenges will be discussed.
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Abd El-Mohdy HL, Aly HM. Characterization, Properties and Antimicrobial Activity of Radiation Induced Phosphorus-Containing PVA Hydrogels. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07031-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractFunction modification of polyvinyl alcohol (PVA) having phosphorus-containing heterocyclic compounds is believed to have thermal and biological applications in the area of polymers. The synthesis of phosphorus-containing PVA (P-PVA) was performed using γ-radiation. The chemical structure of the composite polymer is confirmed by spectroscopic techniques of FT-IR, 1H, 13C, and 31P-NMR. Photosensitive properties of polymers were investigated by ultraviolet spectroscopy. Thermal studies are assigned using the Differential Scanning Calorimeter (DSC) and thermogravimetric analysis (TGA). Data display that P-PVA has more thermal stability than PVA. The surface morphology of the prepared hydrogels was performed using scanning electron microscopy (SEM). Quantitative elemental analysis of the P-PVA hydrogel was done through energy-dispersive X-ray spectroscopy (EDX). Antimicrobial activity of the prepared hydrogels using different fungi such as Aspergillus fumigatus, Geotrichum candidum, Candida albicans, and Syncephal-astrum racemosum, in addition to bacteria such as Staphylococcus aureus, Bacillis subtilis (as gram-positive bacteria), Pseudomonas aeruginosa, and Escherichia coli (as gram-negative bacteria), was studied. The phosphorus-contained PVA hydrogels were found to have antimicrobial activity against various fungi and bacteria compared to pure PVA hydrogels.
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Synthesis of gum acacia-silver nanoparticles based hydrogel composites and their comparative anti-bacterial activity. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02978-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Green Synthesis and Potential Antibacterial Applications of Bioactive Silver Nanoparticles: A Review. Polymers (Basel) 2022; 14:polym14040742. [PMID: 35215655 PMCID: PMC8879957 DOI: 10.3390/polym14040742] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/08/2022] [Accepted: 02/12/2022] [Indexed: 12/25/2022] Open
Abstract
Green synthesis of silver nanoparticles (AgNPs) using biological resources is the most facile, economical, rapid, and environmentally friendly method that mitigates the drawbacks of chemical and physical methods. Various biological resources such as plants and their different parts, bacteria, fungi, algae, etc. could be utilized for the green synthesis of bioactive AgNPs. In recent years, several green approaches for non-toxic, rapid, and facile synthesis of AgNPs using biological resources have been reported. Plant extract contains various biomolecules, including flavonoids, terpenoids, alkaloids, phenolic compounds, and vitamins that act as reducing and capping agents during the biosynthesis process. Similarly, microorganisms produce different primary and secondary metabolites that play a crucial role as reducing and capping agents during synthesis. Biosynthesized AgNPs have gained significant attention from the researchers because of their potential applications in different fields of biomedical science. The widest application of AgNPs is their bactericidal activity. Due to the emergence of multidrug-resistant microorganisms, researchers are exploring the therapeutic abilities of AgNPs as potential antibacterial agents. Already, various reports have suggested that biosynthesized AgNPs have exhibited significant antibacterial action against numerous human pathogens. Because of their small size and large surface area, AgNPs have the ability to easily penetrate bacterial cell walls, damage cell membranes, produce reactive oxygen species, and interfere with DNA replication as well as protein synthesis, and result in cell death. This paper provides an overview of the green, facile, and rapid synthesis of AgNPs using biological resources and antibacterial use of biosynthesized AgNPs, highlighting their antibacterial mechanisms.
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Nanoparticles: Mechanism of biosynthesis using plant extracts, bacteria, fungi, and their applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116040] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Methylene Blue Dye Adsorption from Wastewater Using Hydroxyapatite/Gold Nanocomposite: Kinetic and Thermodynamics Studies. NANOMATERIALS 2021; 11:nano11061403. [PMID: 34073274 PMCID: PMC8227305 DOI: 10.3390/nano11061403] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 01/02/2023]
Abstract
The present work demonstrates the development of hydroxyapatite (HA)/gold (Au) nanocomposites to increase the adsorption of methylene blue (MB) dye from the wastewater. HA nanopowder was prepared via a wet chemical precipitation method by means of Ca(OH)2 and H3PO4 as starting materials. The biosynthesis of gold nanoparticles (AuNPs) has been reported for the first time by using the plant extract of Acrocarpus fraxinifolius. Finally, the as-prepared HA nanopowder was mixed with an optimized AuNPs solution to produce HA/Au nanocomposite. The prepared HA/Au nanocomposite was studied by using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and Scanning Electron Microscopy (SEM) with Energy Dispersive X-Ray Analysis (EDX) analysis. Adsorption studies were executed by batch experiments on the synthesized composite. The effect of the amount of adsorbent, pH, dye concentration and temperature was studied. Pseudo-first-order and pseudo-second-order models were used to fit the kinetic data and the kinetic modeling results reflected that the experimental data is perfectly matched with the pseudo-first-order kinetic model. The dye adsorbed waste materials have also been investigated against Pseudomonas aeruginosa, Micrococcus luteus, and Staphylococcus aureus bacteria by the agar well diffusion method. The inhibition zones of dye adsorbed samples are more or less the same as compared to as-prepared samples. The results so obtained indicates the suitability of the synthesized sample to be exploited as an adsorbent for effective treatment of MB dye from wastewater and dye adsorbed waste as an effective antibacterial agent from an economic point of view.
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Priya, Sharma AK, Kaith BS, Simran, Bhagyashree, Arora S. Synthesis of dextrin-polyacrylamide and boric acid based tough and transparent, self-healing, superabsorbent film. Int J Biol Macromol 2021; 182:712-721. [PMID: 33862073 DOI: 10.1016/j.ijbiomac.2021.04.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 01/02/2023]
Abstract
Stretchabiliy, transparency and self-healing ability of bio-based materials are some of the important features for their utilization in the biomedical field. Recently, robust self-healing super porous materials possessing multifunctional nature have raised enormous interest among the researchers in order to design different materials which can be used in industrial, biomedical and pharmaceutical fields. Herein, a novel self-healing, stretchable and transparent superabsorbent film based on Dextrin-polyacrylamide and Boric Acid (DEX-cl-polyAAm) was synthesized using a free radical reaction mechanism. In distilled water, the maximum water absorptivity of the synthesized film was reported to be 3156% after the optimization of various reaction parameters. The film was also found to show structural integrity in urea solution, phosphate buffer and solutions of different pH. Lastly, the viscoelastic and self-healing analysis of the film suggested its utility towards biomedical field.
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Affiliation(s)
- Priya
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Amit Kumar Sharma
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Balbir Singh Kaith
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Simran
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Bhagyashree
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Saiyam Arora
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
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Mendonça FG, Menezes IRS, Silva IF, Lago RM. Multifunctional glycerol/citric acid crosslinked polymer hydrophilic gel with absorptive and reducing properties. NEW J CHEM 2021. [DOI: 10.1039/d0nj06138g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Multifunctional hydrogel based on glycerol/citric acid presents absorptive and reducing capacities, affording a hybrid gel containing AgNPs in the matrix.
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Affiliation(s)
- Fernanda G. Mendonça
- Departamento de Química
- ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | | | - Ingrid F. Silva
- Departamento de Química
- ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Rochel M. Lago
- Departamento de Química
- ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
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Chiu CW, Li JW, Huang CY, Yang SS, Soong YC, Lin CL, Lee JCM, Lee Sanchez WA, Cheng CC, Suen MC. Controlling the Structures, Flexibility, Conductivity Stability of Three-Dimensional Conductive Networks of Silver Nanoparticles/Carbon-Based Nanomaterials with Nanodispersion and their Application in Wearable Electronic Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1009. [PMID: 32466225 PMCID: PMC7281189 DOI: 10.3390/nano10051009] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 01/17/2023]
Abstract
This research has successfully synthesized highly flexible and conductive nanohybrid electrode films. Nanodispersion and stabilization of silver nanoparticles (AgNPs) were achieved via non-covalent adsorption and with an organic polymeric dispersant and inorganic carbon-based nanomaterials-nano-carbon black (CB), carbon nanotubes (CNT), and graphene oxide (GO). The new polymeric dispersant-polyisobutylene-b-poly(oxyethylene)-b-polyisobutylene (PIB-POE-PIB) triblock copolymer-could stabilize AgNPs. Simultaneously, this stabilization was conducted through the addition of mixed organic/inorganic dispersants based on zero- (0D), one- (1D), and two-dimensional (2D) nanomaterials, namely CB, CNT, and GO. Furthermore, the dispersion solution was evenly coated/mixed onto polymeric substrates, and the products were heated. As a result, highly conductive thin-film materials (with a surface electrical resistance of approximately 10-2 Ω/sq) were eventually acquired. The results indicated that 2D carbon-based nanomaterials (GO) could stabilize AgNPs more effectively during their reductNion and, hence, generate particles with the smallest sizes, as the COO- functional groups of GO are evenly distributed. The optimal AgNPs/PIB-POE-PIB/GO ratio was 20:20:1. Furthermore, the flexible electrode layers were successfully manufactured and applied in wearable electronic sensors to generate electrocardiograms (ECGs). ECGs were, thereafter, successfully obtained.
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Affiliation(s)
- Chih-Wei Chiu
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - Jia-Wun Li
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - Chen-Yang Huang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - Shun-Siang Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - Yu-Chian Soong
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - Chih-Lung Lin
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - Jimmy Chi-Min Lee
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - William Anderson Lee Sanchez
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (J.-W.L.); (C.-Y.H.); (S.-S.Y.); (Y.-C.S.); (C.-L.L.); (J.C.-M.L.); (W.A.L.S.)
| | - Chih-Chia Cheng
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan;
| | - Maw-Cherng Suen
- Department of Fashion Business Administration, LEE-MING Institute of Technology, New Taipei City 24305, Taiwan;
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