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Mukherjee K, Roy S, Giri TK. Effect of intragranular/extragranular tara gum on sustained gastrointestinal drug delivery from semi-IPN hydrogel matrices. Int J Biol Macromol 2023; 253:127176. [PMID: 37783254 DOI: 10.1016/j.ijbiomac.2023.127176] [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: 08/01/2023] [Revised: 09/20/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
The present research was undertaken to develop semi-IPN hydrogel matrix tablets of tara gum (TG) and carboxymethyl TG (CMTG) for sustained gastrointestinal delivery of highly water soluble tramadol hydrochloride (TH). The matrix tablets were developed by a hybrid process of wet granulation and direct compression technique. Carboxymethyl TG was crosslinked with dual cross-linking ions (Al3+/Ca2+). The uncross-linked component of the semi-IPN matrix was either incorporated within the granules (intragranular TG) or incorporated outside the granules (extragranular TG), prior to compression. The effect of intragranular/extragranular TG on the swelling, erosion and TH release characteristics from the semi-IPN hydrogel matrix tablets was investigated. The key finding of the investigation indicated that intragranular TG expedited TH release, while extragranular TG sustained TH release. Moreover, the effect of cross-linking ions on viscosity, rigidity, cross-link density and TH release behavior from hydrogel matrices was investigated. In-vivo pharmacokinetic performance of the optimized extragranular TG semi-IPN hydrogel matrix (F15) indicated sustained TH release in gastrointestinal milieu.
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Affiliation(s)
- Kaushik Mukherjee
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India
| | - Sukanta Roy
- Bioequivalence Study Center, TAAB Biostudy Services, Ibrahimpore Road, Kolkata 700032, India
| | - Tapan Kumar Giri
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India.
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Sun Q, Yuan T, Yang G, Guo D, Sha L, Yang R. Chitosan-graft-poly(lactic acid)/CD-MOFs degradable composite microspheres for sustained release of curcumin. Int J Biol Macromol 2023; 253:127519. [PMID: 37866573 DOI: 10.1016/j.ijbiomac.2023.127519] [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: 04/20/2023] [Revised: 09/28/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
The solubility of cyclodextrin metal-organic frameworks (CD-MOFs) in aqueous media making it not suitable as sustained-release drug carrier. Here, curcumin-loaded CD-MOFs (CD-MOFs-Cur) was embedded in chitosan-graft-poly(lactic acid) (CS-LA) via a solid-in-oil-in-oil (s/o/o) emulsifying solvent evaporation method forming the sustained-release composite microspheres. At CS-LA concentration of 20 mg/mL, the composite microspheres showed good sphericity. The average particle size of CS-LA/CD-MOFs-Cur (2:1), CS-LA/CD-MOFs-Cur (4:1) and CS-LA/CD-MOFs-Cur (6:1) composite microspheres was about 9.3, 12.3 and 13.5 μm, respectively. The above composite microspheres exhibited various degradation rates and curcumin release rates. Treating in HCl solution (pH 1.2) for 120 min, the average particle size of above microspheres reduced 28.19 %, 24.34 % and 6.19 %, and curcumin released 86.23 %, 78.37 % and 52.57 %, respectively. Treating in PBS (pH 7.4) for 12 h, the average particle size of above microspheres reduced 30.56 %, 26.56 % and 10.66 %, and curcumin released 68.54 %, 54.32 % and 31.25 %, respectively. Moreover, the composite microspheres had a favorable cytocompatibility, with cell viability of higher than 90 %. These composite microspheres open novel opportunity for sustained drug release of CD-MOFs.
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Affiliation(s)
- Qianyu Sun
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Tianzhong Yuan
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China.
| | - Gang Yang
- Winbon Schoeller New Materials Co., Ltd., Quzhou 324400, China
| | - Daliang Guo
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China.
| | - Lizheng Sha
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Rendang Yang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
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Yang Y, Zhang C, Bian X, Ren LK, Ma CM, Xu Y, Su D, Ai LZ, Song MF, Zhang N. Characterization of structural and functional properties of soy protein isolate and sodium alginate interpenetrating polymer network hydrogels. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:6566-6573. [PMID: 37229570 DOI: 10.1002/jsfa.12736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/09/2023] [Accepted: 05/23/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND This study used enzymatic and Ca2+ cross-linking methods to prepare edible soy protein isolate (SPI) and sodium alginate (SA) interpenetrating polymer network hydrogels to overcome the disadvantages of traditional interpenetrating polymer network (IPN) hydrogels, such as poor performance, high toxicity, and inedibility. The influence of changes in SPI and SA mass ratio on the performance of SPI-SA IPN hydrogels was investigated. RESULTS Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were used to characterize the structure of the hydrogels. Texture profile analysis (TPA), rheological properties, swelling rate, and Cell Counting Kit-8 (CCK-8) were used to evaluate physical and chemical properties and safety. The results showed that, compared with SPI hydrogel, IPN hydrogels had better gel properties and structural stability. As the mass ratio of SPI-SA IPN changed from 1:0.2 to 1:1, the gel network structure of hydrogels also tended to be dense and uniform. The water retention and mechanical properties of these hydrogels, such as storage modulus (G'), loss modulus (G"), and gel hardness increased significantly and were greater than those of the SPI hydrogel. Cytotoxicity tests were also performed. The biocompatibility of these hydrogels was good. CONCLUSIONS This study proposes a new method to prepare food-grade IPN hydrogels with mechanical properties of SPI and SA, which may have strong potential for the development of new foods. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yang Yang
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Can Zhang
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Xin Bian
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Li-Kun Ren
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Chun-Min Ma
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Yue Xu
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Dan Su
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Lian-Zhong Ai
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Ming-Feng Song
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Na Zhang
- College of Food Engineering, Harbin University of Commerce, Harbin, China
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Zhao C, Chen H, Song Y, Zhu L, Ai T, Wang X, Liu Z, Wei X. Electricity production performance enhancement of microbial fuel cells with double-layer sodium alginate hydrogel bioanodes driven by high-salinity waste leachate. WATER RESEARCH 2023; 242:120281. [PMID: 37422979 DOI: 10.1016/j.watres.2023.120281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/21/2023] [Accepted: 06/27/2023] [Indexed: 07/11/2023]
Abstract
The poor bacterial loading capacity and biocompatibility of the anode lead to weak electricity production performance of microbial fuel cells (MFCs). Inspired by kelp, we developed a double-layer hydrogel bioanode based on sodium alginate (SA). The inner hydrogel layer of encapsulated Fe3O4 and electroactive microorganisms (EAMs) was used as the bioelectrochemical catalytic layer. The outer hydrogel layer formed by cross-linking SA with polyvinyl alcohol (PVA) was used as the protective layer. The 3D porous structure of the inner hydrogel formed based on Fe3O4 facilitated the electroactive bacteria colonization and electron transfer, while the high structural toughness, salt-resistance and antibacterial properties of the outer highly cross-linked hydrogel served to protect the catalytic layer for stable electricity production. When high-salt waste leachate was used as the nutrient, the amazing open-circuit voltage (OCV) of 1.17 V and the operating voltage of 781 mV were brought by the double-layer hydrogel bioanode PVA@SA&Fe3O4/EAMs@SA.
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Affiliation(s)
- Chao Zhao
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China
| | - Hongwei Chen
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China
| | - Yangfan Song
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China.
| | - Lou Zhu
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China
| | - Tianchao Ai
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China
| | - Xinxin Wang
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China
| | - Zhuo Liu
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China
| | - Xiang Wei
- Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding, Hebei Province, 071003, China
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Vieira WT, da Silva MGC, de Oliveira Nascimento L, Vieira MGA. Development and characterization of crosslinked k-carrageenan/sericin blend with covalent agents or thermal crosslink for indomethacin extended release. Int J Biol Macromol 2023; 246:125558. [PMID: 37392907 DOI: 10.1016/j.ijbiomac.2023.125558] [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: 03/05/2023] [Revised: 06/03/2023] [Accepted: 06/23/2023] [Indexed: 07/03/2023]
Abstract
Modified release of multiparticulate pharmaceutical forms is a key therapeutic strategy to reduce side effects and toxicity caused by high and repeated doses of immediate-release oral drugs. This research focused on the encapsulation of indomethacin (IND) in the crosslinked k-Car/Ser polymeric matrix by covalent and thermal methods to evaluate drug delivery modulation and properties of the crosslinked blend. Therefore, the entrapment efficiency (EE %), drug loading (DL %) and physicochemical properties of the particles were investigated. The particles presented a spherical shape and a rough surface with a mean diameter of 1.38-2.15 mm (CCA) and 1.56-1.86 mm (thermal crosslink). FTIR investigation indicated the presence of IDM in the particles and X-ray pattern showed the maintenance of crystallinity of IDM. The in vitro release in acidic medium (pH 1.2) and phosphate buffer saline solution (pH 6.8) was 1.23-6.81 % and 81-100 %, respectively. Considering the results, the formulations remained stable after 6 months. The Weibull equation was adequately fitted for all formulations and a diffusion mechanism, swelling and relaxation of chain were observed. IDM-loaded k-carrageenan/sericin/CMC increases cell viability (> 75 % for neutral red and > 81 % for MTT). Finally, all formulations present gastro-resistance, pH response and altered release and have the potential to be used as drug delivery careers.
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Affiliation(s)
- Wedja Timóteo Vieira
- University of Campinas, School of Chemical Engineering, Albert Einstein Av., 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil
| | - Meuris Gurgel Carlos da Silva
- University of Campinas, School of Chemical Engineering, Albert Einstein Av., 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil
| | - Laura de Oliveira Nascimento
- University of Campinas, School of Pharmaceutical Sciences, Cândido Portinari, St. 200, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-871, Brazil
| | - Melissa Gurgel Adeodato Vieira
- University of Campinas, School of Chemical Engineering, Albert Einstein Av., 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil.
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Bulut E. Assessment of temperature-sensitive properties of ionically crosslinked sodium alginate/hydroxypropyl cellulose blend microspheres: preparation, characterization, and in vitro release of paracetamol. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023; 34:565-586. [PMID: 36218277 DOI: 10.1080/09205063.2022.2135077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Today, polymer systems can be formed to respond to single stimuli or multiple stimuli by changing their properties. The use of these systems, which are designed to be sensitive to stimuli, is expanding in a wide range of applications. Herein, microspheres of sodium alginate (NaAlg) and hydroxypropyl cellulose (HPC) sensitive to dual stimuli for the controlled release of model drug paracetamol were produced by the ionotropic gelation method in the presence of Zn2+ ions. FTIR, DSC, TGA, SEM, and particle size measurements were used to describe the blend microspheres. Low critical solution temperatures (LCST) of polymer blends at different ratios were determined and the biggest change according to the LCST value of HPC was found to be approximately 1-2 °C lower than 41 °C in microspheres with a NaAlg/HPC ratio of 50/50. In vitro release experiments of paracetamol from microspheres were carried out in a gastrointestinal tract simulation environment at two different temperatures (37 °C and 47 °C). From the release profiles, paracetamol release varied depending on the NaAlg/HPC ratio, the paracetamol content in the microspheres, the exposure time to Zn2+ ions, and the pH of the medium. Among the microsphere formulations, the highest entrapment efficiency was 57.86%, obtained for B7 formulation microspheres with a NaAlg/HPC ratio of 70/30, a paracetamol loading percentage of 20%, and a crosslinking time of 5 min.RESEARCH HIGHLIGHTSMicrospheres of sodium alginate (NaAlg) and hydroxypropyl cellulose (HPC) sensitive to dual stimuli for the controlled release of model drug paracetamol were produced by the ionotropic gelation method in the presence of Zn2+ ions.LCST values of the microspheres with a NaAlg/HPC ratio of 50/50 were significantly lower by 1-2 °C than the LCST value of HPC, and the release results supported the temperature sensitivity of the microspheres.Among the microsphere formulations, the highest entrapment efficiency was 57.86% obtained for B7 formulation microspheres.These microspheres can be used as a temperature-sensitive drug delivery system in the biomedical field and also as an encapsulation system of cancer drugs for cancer treatment modalities such as hyperthermia.
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Affiliation(s)
- Emine Bulut
- Department of Food Processing, Bolvadin Vocational School, Afyon Kocatepe University, Afyonkarahisar, Turkey
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7
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Hu X, Yan L, Xu M, Tang L. Photo-degradable salecan/xanthan gum ionic gel induced by iron (III) coordination for organic dye decontamination. Int J Biol Macromol 2023; 238:124132. [PMID: 36958439 DOI: 10.1016/j.ijbiomac.2023.124132] [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: 12/21/2022] [Revised: 03/03/2023] [Accepted: 03/18/2023] [Indexed: 03/25/2023]
Abstract
As dye adsorbents with great potential, polysaccharide-based hydrogels are significantly hampered in practical application owing to intricate preparation methods, low absorption, and bad degradability. Salecan is a water-soluble extracellular polysaccharide with excellent physicochemical and biological properties. Here, salecan and xanthan gum were first used as a dual-precursors system, their mixed solution was crosslinked by Fe3+ to assemble a photo-degradable ionic gel for malachite green (MG) adsorption. Photo-degradation was done using visible light under very mild conditions, which gave rise to gel network dissolution and homogeneous solution formation. Extensive dynamic coordinate interactions between Fe3+ and polysaccharides maintained gel matrix stability and were systematically investigated. The control of water uptake, micro-structure, and rheology can be facilely implemented by tuning salecan/xanthan gum ratios. Furthermore, various parameters such as polysaccharide ratios, pHs, MG concentrations, and contact time affecting adsorption were optimized using batch experiments. Adsorption process accurately adhered to pseudo-second-order kinetic and Langmuir isotherm model, with the maximum adsorption capacity of 463.0 mg/g. Such mechanism implied monolayer chemisorptive characteristics. The gel exhibited satisfactory reusability and was recycled five times without apparent decrease in adsorption capacity. From these results, the photo-degradable Fe3+-induced salecan/xanthan gum ionic gel is an alternative and sustainable absorbent for MG removal.
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Affiliation(s)
- Xinyu Hu
- Institute of Chemical Industry of Forest Products, CAF, Key Lab. of Biomass Energy and Material, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China; Research Institute of Forestry New Technology, CAF, Beijing 100091, China.
| | - Linlin Yan
- Institute of Chemical Industry of Forest Products, CAF, Key Lab. of Biomass Energy and Material, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China; Research Institute of Forestry New Technology, CAF, Beijing 100091, China
| | - Man Xu
- Institute of Chemical Industry of Forest Products, CAF, Key Lab. of Biomass Energy and Material, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
| | - Lihua Tang
- Institute of Chemical Industry of Forest Products, CAF, Key Lab. of Biomass Energy and Material, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
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Design of carboxymethyl chitosan-reinforced pH-responsive hydrogels for on-demand release of carvacrol and simulation of release kinetics. Food Chem 2023; 405:134856. [DOI: 10.1016/j.foodchem.2022.134856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022]
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9
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Construction of Tissue-Engineered Bladder Scaffolds with Composite Biomaterials. Polymers (Basel) 2022; 14:polym14132654. [PMID: 35808700 PMCID: PMC9269300 DOI: 10.3390/polym14132654] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 11/30/2022] Open
Abstract
Various congenital and acquired urinary system abnormalities can cause structural damage to patients’ bladders. This study aimed to construct and evaluate a novel surgical patch encapsulated with adipose-derived stem cells (ADSCs) for bladder tissue regeneration. The surgical patch consists of multiple biomaterials, including bladder acellular matrix (BAM), collagen type I from rat tail, microparticle emulsion cross-linking polylactic-co-glycolic acid (PLGA)-chitosan (CS) with PLGA-sodium alginate (SA), and growth factors. ADSCs were seeded on the surgical patch. Approximately 50% of the bladder was excised and replaced with a surgical patch. Histological, immunohistochemical and urodynamic analyses were performed at the 2nd, 4th, and 8th weeks after surgery, respectively. The PLGA-CS, PLGA-SA or surgical patch showed no cytotoxicity to ADSCs. PLGA-CS cross-linked with PLGA-SA at a ratio of 5:5 exhibited a loose microporous structure and was chosen as the candidate for ADSC seeding. We conducted bladder repair surgery in rats using the patch, successfully presenting urothelium layers, muscle bundles, and vessel regeneration and replacing 50% of the rat’s natural bladder in vivo. Experiments through qualitative and quantitative evaluation demonstrate the application potential of the composite biomaterials in promoting the repair and reconstruction of bladder tissue.
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Design and Optimization of pH‐Responsive Chitosan‐Coated Zn‐Carboxymethyl Cellulose Hydrogel Bead Carriers for Amoxicillin Trihydrate Delivery. ChemistrySelect 2022. [DOI: 10.1002/slct.202200471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhang MK, Zhang XH, Han GZ. Magnetic alginate/PVA hydrogel microspheres with selective adsorption performance for aromatic compounds. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119547] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Bolouki N, Hsu YN, Hsiao YC, Jheng PR, Hsieh JH, Chen HL, Mansel BW, Yeh YY, Chen YH, Lu CX, Lee JW, Chuang EY. Cold atmospheric plasma physically reinforced substances of platelets-laden photothermal-responsive methylcellulose complex restores burn wounds. Int J Biol Macromol 2021; 192:506-515. [PMID: 34599990 DOI: 10.1016/j.ijbiomac.2021.09.168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 12/15/2022]
Abstract
Patients with irregular, huge burn wounds require time-consuming healing. The skin has an epithelial barrier mechanism. Hence, the penetration and retention of therapeutics across the skin to deep lesion is generally quite difficult and these usually constrain the delivery/therapeutic efficacies for wound healing. Effective burn wound healing also necessitates proper circulation. Conventional polymeric dressing usually exhibits weak mechanical behaviors, obstructing their load-bearing applications. Cold atmospheric plasma (CAP) was used as an efficient, environmentally friendly, and biocompatible process to crosslink methylcellulose (MC) designed for topical administration such as therapeutic substances of platelets (SP) and polyethyleneimine-polypyrrole nanoparticle (PEI-PPy NP)-laden MC hydrogel carriers, and wound dressings. The roles of framework parameters for CAP-treated SP-PEI-PPy NP-MC polymeric complex system; chemical, physical, and photothermal effects; morphological, spectroscopical, mechanical, rheological, and surface properties; in vitro drug release; and hydrophobicity are discussed. Furthermore, CAP-treated SP-PEI-PPy NP-MC polymeric complex possessed augmented mechanical properties, biocompatibility, sustainable drug release, drug-retention effects, and near-infrared (NIR)-induced hyperthermia effects that drove heat-shock protein (HSP) expression with drug permeation to deep lesions. This work sheds light on the CAP crosslinking polymeric technology and the efficacy of combining sustained drug release with photothermal therapy in burn wound bioengineering carrier designs.
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Affiliation(s)
- Nima Bolouki
- Center for Plasma and Thin Film Technologies, Ming-Chi University of Technology, New Taipei City, Taiwan
| | - Yu-Nu Hsu
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Yu-Cheng Hsiao
- Graduate Institute of Biomedical Optomechatronics, Taipei Medical University, Taipei 11031, Taiwan
| | - Pei-Ru Jheng
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Jang-Hsing Hsieh
- Center for Plasma and Thin Film Technologies, Ming-Chi University of Technology, New Taipei City, Taiwan; Department of Materials Engineering, Ming-Chi University of Technology, New Taipei City, Taiwan
| | - Hsin-Lung Chen
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Bradley W Mansel
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Yen Yeh
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Yun-Hsuan Chen
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chu-Xuan Lu
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Jyh-Wei Lee
- Center for Plasma and Thin Film Technologies, Ming-Chi University of Technology, New Taipei City, Taiwan; Department of Materials Engineering, Ming-Chi University of Technology, New Taipei City, Taiwan
| | - Er-Yuan Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; Cell Physiology and Molecular Image Research Center, Taipei Medical University, Wan Fang Hospital, Taipei 11696, Taiwan.
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Bulut E, Turhan Y. Synthesis and characterization of temperature-sensitive microspheres based on acrylamide grafted hydroxypropyl cellulose and chitosan for the controlled release of amoxicillin trihydrate. Int J Biol Macromol 2021; 191:1191-1203. [PMID: 34614414 DOI: 10.1016/j.ijbiomac.2021.09.193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/12/2021] [Accepted: 09/28/2021] [Indexed: 02/01/2023]
Abstract
This study deals with the preparation of temperature-sensitive chitosan/hydroxypropyl cellulose-graft-polyacrylamide (CS/HPC-g-PAAm) blend microspheres as a controlled drug release system. For this purpose, HPC-g-PAAm copolymers of hydroxypropyl cellulose (HPC) with acrylamide (AAm) were synthesized using cerium (IV) ammonium nitrate as initiator. The HPC-g-PAAm copolymers were characterized by using Fourier transform infrared spectroscopy (FTIR), elemental analysis, and differential scanning calorimetry (DSC). Lower critical solution temperatures (LCST) of the synthesized copolymers were determined. Temperature-sensitive blend microspheres of HPC-g-PAAm and chitosan were prepared by emulsion cross-linking method using glutaraldehyde (GA) as a cross-linker in the hydrochloric acid catalyst (HCl) and they were used to achieve controlled release of amoxicillin trihydrate (AMX), an antibiotic drug. The microspheres were characterized by DSC, X-ray diffraction (X-RD), and FTIR spectroscopy. In addition, surfaces of empty and drug-loaded microspheres were examined by scanning electron microscopy (SEM). The effects of variables such as CS/HPC-g-PAAm ratio, drug/polymer ratio, amount of cross-linker, and reaction time of grafting on AMX release were investigated at three different pH environments (1.2, 6.8, 7.4) at 25 °C, 37 °C, and 50 °C. The release results showed that the microspheres had temperature sensitivity and the AMX release was slightly more controlled by especially increasing graft yield (%).
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Affiliation(s)
- Emine Bulut
- Department of Food Processing, Bolvadin Vocational School, Afyon Kocatepe University, 03300 Afyonkarahisar, Turkey.
| | - Yakup Turhan
- Department of Chemistry, Science and Arts Faculty, Afyon Kocatepe University, 03200 Afyonkarahisar, Turkey
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Kudzin MH, Giełdowska M, Mrozińska Z, Boguń M. Poly(lactic acid)/Zinc/Alginate Complex Material: Preparation and Antimicrobial Properties. Antibiotics (Basel) 2021; 10:1327. [PMID: 34827265 PMCID: PMC8614701 DOI: 10.3390/antibiotics10111327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to investigate an antimicrobial and degradable composite material consisting of melt-blown poly(lactic acid) nonwoven fabrics, alginate, and zinc. This paper describes the method of preparation and the characterization of the physicochemical and antimicrobial properties of the new fibrous composite material. The procedure consists of fabrication of nonwoven fabric and two steps of dip-coating modification: (1) impregnation of nonwoven samples in the solution of alginic sodium salt and (2) immersion in a solution of zinc (II) chloride. The characterization and analysis of new material included scanning electron microscopy (SEM), specific surface area (SSA), and total/average pore volume (BET). The polylactide/alginate/Zn fibrous composite were subjected to microbial activity tests against colonies of Gram-positive (Staphylococcus aureus), Gram-negative (Escherichia coli) bacterial strains, and the following fungal strains: Aspergillus niger van Tieghem and Chaetomium globosum. These results lay a technical foundation for the development and potential application of new composite as an antibacterial/antifungal material in biomedical areas.
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Affiliation(s)
- Marcin H. Kudzin
- Lukasiewicz Research Network-Textile Research Institute, Brzezinska 5/15, 92-103 Lodz, Poland; (M.G.); (Z.M.); (M.B.)
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Methylene blue uptake by gum arabic/acrylic amide/3-allyloxy-2-hydroxy-1-propanesulfonic acid sodium salt semi-IPN hydrogel. Int J Biol Macromol 2021; 186:268-277. [PMID: 34242649 DOI: 10.1016/j.ijbiomac.2021.07.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 07/01/2021] [Accepted: 07/03/2021] [Indexed: 02/07/2023]
Abstract
In this study, the capacity of methylene blue (MB) uptake from aqueous solution was investigated using acrylic amide-co-3-Allyloxy-2-hydroxy-1-propanesulfonic acid sodium salt/Gum Arabic semi-IPN hydrogel. The semi-IPN hydrogels were prepared by the classical free radical solution technique. The swelling experiments were carried out gravimetrically and the swelling kinetics parameters were calculated. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) confirmed the semi-IPN hydrogel formation. The MB uptake was studied by the batch technique and the impact of different conditions was investigated. It was found that the obtained semi-IPN hydrogels gave adsorption capacity for the dye within a range of 101-187 mg g-1 at the initial dye concentration of 100 mg/L. The adsorption kinetics (pseudo-first-order and pseudo-second-order) and the adsorption isotherms (Langmuir, Freundlich, and Temkin equations) were tested and the adsorption data was well described by the pseudo-second-order and Freundlich models, respectively. The maximum adsorption capacity calculated by the Langmuir model (R2 = 0.8718) was 655.2 mg g-1. The thermodynamic study indicated the spontaneity and the endothermic nature of MB adsorption. Furthermore, the usability study showed that the prepared adsorbents could be employed repeatedly for successive 5 cycles of adsorption and desorption.
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