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Dodangeh F, Nabipour H, Rohani S, Xu C. Applications, challenges and prospects of superabsorbent polymers based on cellulose derived from lignocellulosic biomass. BIORESOURCE TECHNOLOGY 2024; 408:131204. [PMID: 39102965 DOI: 10.1016/j.biortech.2024.131204] [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: 04/13/2024] [Revised: 07/30/2024] [Accepted: 07/31/2024] [Indexed: 08/07/2024]
Abstract
The synthetic superabsorbent polymers (SAPs) market is experiencing significant growth, with applications spanning agriculture, healthcare, and civil engineering, projected to increase from $9.0 billion USD in 2019 to $12.9 billion USD by 2024. Despite this positive trend, challenges such as fluctuating raw material costs and lower biodegradability of fossil fuel-based SAPs could impede further expansion. In contrast, cellulose and its derivatives present a sustainable alternative due to their renewable, biodegradable, and abundant characteristics. Lignocellulosic biomass (LCB), rich in cellulose and lignin, shows promise as a source for eco-friendly superabsorbent polymer (SAP) production. This review discusses the applications, challenges, and future prospects of SAPs derived from lignocellulosic resources, focusing on the cellulose extraction process through fractionation and various modification and crosslinking techniques. The review underscores the potential of cellulose-based SAPs to meet environmental and market needs, offering a viable path forward in the quest for more sustainable materials.
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Affiliation(s)
- Fatemeh Dodangeh
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario, Canada
| | - Hafezeh Nabipour
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario, Canada
| | - Sohrab Rohani
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario, Canada.
| | - Chunbao Xu
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China.
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2
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Dong X, Xiao B, Vu H, Lin H, Sitti M. Millimeter-scale soft capsules for sampling liquids in fluid-filled confined spaces. SCIENCE ADVANCES 2024; 10:eadp2758. [PMID: 39196937 PMCID: PMC11352903 DOI: 10.1126/sciadv.adp2758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 07/23/2024] [Indexed: 08/30/2024]
Abstract
Sampling liquids in small and confined spaces to retrieve chemicals and microbiomes could enable minimally invasive monitoring human physiological conditions for understanding disease development and allowing early screening. However, existing tools are either invasive or too large for sampling liquids in tortuous and narrow spaces. Here we report a fundamental liquid sampling mechanism that enables millimeter-scale soft capsules for sampling liquids in confined spaces. The miniature capsule is enabled by flexible magnetic valves and superabsorbent polymer, fully wirelessly controlled for on-demand fluid sampling. A group of miniature capsules could navigate in fluid-filled and confined spaces safely using a rolling locomotion. The integration of on-demand triggering, sampling, and sealing mechanism and the agile group locomotion allows us to demonstrate precise control of the soft capsules, navigating and sampling body fluids in a phantom and animal organ ex vivo, guided by ultrasound and x-ray medical imaging. The proposed mechanism and wirelessly controlled devices spur the next-generation technologies for minimally invasive disease diagnosis.
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Affiliation(s)
- Xiaoguang Dong
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Boyang Xiao
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Hieu Vu
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Honglu Lin
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Metin Sitti
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
- School of Medicine and College of Engineering, Koç University, 34450 Istanbul, Turkey
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3
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Vaittinen T, Koljonen K, Tella S, Asikainen E, Laatikainen K. Holistically sustainable continence care: A working definition, the case of single-used absorbent hygiene products (AHPs) and the need for ecosystems thinking. Proc Inst Mech Eng H 2024; 238:667-681. [PMID: 37655850 PMCID: PMC11318206 DOI: 10.1177/09544119231188860] [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: 02/13/2023] [Accepted: 06/19/2023] [Indexed: 09/02/2023]
Abstract
Incontinence is a common health issue that affects hundreds of millions of people across the world. The solution is often to manage the condition with different kinds of single-use continence technologies, such as incontinence pads and other absorbent hygiene products (AHPs). Throughout their life cycle, these fossil-based products form a remarkable yet inadequately addressed ecological burden in society, contributing to global warming and other environmental degradation. The products are a necessity for their users' wellbeing. When looking for sustainability transitions in this field, focus on individual consumer-choice is thus inadequate - and unfair to the users. The industry is already seeking to decrease its carbon footprint. Yet, to tackle the environmental impact of single-use continence products, also societies and health systems at large must start taking continence seriously. Arguing that continence-aware societies are more sustainable societies, we devise in this article a society-wide working definition for holistically sustainable continence care. Involving dimensions of social, ecological and economic sustainability, the concept draws attention to the wide range of technologies, infrastructures and care practices that emerge around populations' continence needs. Holistically sustainable continence care is thus not only about AHPs. However, in this article, we examine holistically sustainable continence care through the case of AHPs. We review what is known about the environmental impact AHPs, discuss the impact of care practices on aggregate material usage, the future of biobased and degradable incontinence pads, as well as questions of waste management and circular economy. The case of AHPs shows how holistically sustainable continence care is a wider question than technological product development. In the end of the article, we envision an ecosystem where technologies, infrastructures and practices of holistically sustainable continence care can flourish, beyond the focus on singular technologies.
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Affiliation(s)
- Tiina Vaittinen
- Faculty of Management and Business (Politics Unit) and Faculty of Social Sciences (Global Health and Development), Tampere University, Tampere, Finland
| | - Krista Koljonen
- School of Engineering Science, Department of Separation Science, Lappeenranta-Lahti University of Technology LUT, Lappeenranta, Finland
| | - Susanna Tella
- Faculty of Social and Health Care, LAB University of Applied Sciences, Lappeenranta, Finland
| | - Eveliina Asikainen
- Pedagogical Innovations and Culture, Tampere University of Technology, Tampere, Finland
| | - Katri Laatikainen
- School of Engineering Science, Department of Separation Science, Lappeenranta-Lahti University of Technology LUT, Lappeenranta, Finland
- Finnish Defense Research Agency, Lakiala, Finland
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4
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Swan J, Mogford J, Leek K. Wound care in older people: overcoming the challenges of assessment and management. Nurs Older People 2024:e1471. [PMID: 38655588 DOI: 10.7748/nop.2024.e1471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2023] [Indexed: 04/26/2024]
Abstract
Age-related skin changes lead to increased susceptibility to skin damage and delayed wound healing, which is exacerbated by comorbidities such as cardiovascular disease and diabetes mellitus. In some cases, wound healing is not achievable or realistic and this needs to be reflected in the wound management plan. To improve outcomes and experience in older people presenting with wounds it is important to select wound management products that protect the wound bed and surrounding skin, minimise trauma, reduce symptoms and/or promote healing. This article explores how conducting holistic wound assessments, setting realistic treatment aims, and using wound management strategies tailored to each person's needs and wishes can have a positive effect on older people's quality of life.
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Affiliation(s)
- Joanna Swan
- Birmingham City University, Birmingham, England
| | | | - Katie Leek
- Royal Stoke University Hospital, Stoke-on-Trent, England
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5
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Fu Y, Wei Q, Shen Z, Cheng L, Chow CWK. A comprehensive assessment of superabsorbent resin produced using modified quinoa husk and coal fly ash - Preparation, characterization and application. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168962. [PMID: 38049002 DOI: 10.1016/j.scitotenv.2023.168962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/30/2023] [Accepted: 11/26/2023] [Indexed: 12/06/2023]
Abstract
About 200 million tons of coal fly ash (CFA) is not effectively used in China every year. To enhance the utilization of biomass waste quinoa husk (QH) and solid waste CFA and reduce the preparation cost of superabsorbent resin (SAR), a low-cost, biodegradable modified quinoa husk-g-poly (acrylic acid)/coal fly ash superabsorbent resin (MQH-g-PAA/CFA SAR) was synthesized using modified quinoa husk (MQH), acrylic acid and CFA and used to improve the drought resistance and fertilizer conservation ability of soil. The surface morphology and performance of SAR were characterized by Fourier transform infrared (FTIR) spectrometry, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA), which provided evidence for improving the properties of SAR by grafting MQH and adding CFA. In addition, the synthesis conditions were studied and optimized, together with the contents of initiator, crosslinker, MQH, and CFA to acrylic acid as well as the neutralization degree of acrylic acid. After optimization, the optimum water absorbency of SAR in deionized water, tap water, and physiological saline was 1302, 356, and 91 g/g respectively. The swelling and water-retention mechanisms of SARs were analyzed by a dynamic model and the results were in good agreement with the experimental data. In the soil experiment, the addition of SAR improved the drought resistance ability of soil, and reduced the leaching loss of fertilizer in the soil (from 49.5 % to 36.7 %). Therefore, this material exhibits significant potential in the field of agriculture and offers a novel approach with economic benefit for the utilization of MQH and CFA.
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Affiliation(s)
- Yanfei Fu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Qunshan Wei
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
| | - Zhemin Shen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Luwei Cheng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Christopher W K Chow
- Sustainable Infrastructure and Resource Management (SIRM), UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
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Aminzare M, Soltan Ahmadi S, Azar HH, Nikfarjam N, Roohinejad S, Greiner R, Tahergorabi R. Characteristics, antimicrobial capacity, and antioxidant potential of electrospun zein/polyvinyl alcohol nanofibers containing thymoquinone and electrosprayed resveratrol nanoparticles. Food Sci Nutr 2024; 12:1023-1034. [PMID: 38370090 PMCID: PMC10867463 DOI: 10.1002/fsn3.3816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/14/2023] [Accepted: 10/25/2023] [Indexed: 02/20/2024] Open
Abstract
The aim of the present study was to fabricate, characterize, and evaluate the in vitro antimicrobial and antioxidant properties of zein/polyvinyl alcohol (ZN/PVA) nanofibers containing 2% and 4% of thymoquinone (TQ), either alone or in combination with electrosprayed ZN nanoparticles containing 1% and 2% of resveratrol (RS). According to scanning electron microscopy analysis, the diameter of nanofibers and nanoparticles increased with increasing TQ and RS concentrations, respectively. The molecular interaction between ZN or PVA polymers and TQ or RS was confirmed by Fourier transform infrared spectroscopy. Thermogravimetric analysis showed that the thermal stability of nanofibers did not change with the addition of TQ and RS. Moreover, incorporation of TQ in nanofibers along with RS nanoparticles increased their antibacterial and free radical scavenging activities based on broth dilution and DPPH methods, respectively (p ≤ .05). Escherichia coli O157:H7 (as a Gram-negative pathogenic bacteria) was more resistant to all treatments than Staphylococcus aureus (as a Gram-positive pathogenic bacteria). In addition, the combined use of TQ in nanofibers and RS nanoparticles had antagonistic antibacterial and synergistic antioxidant effects. The best results were obtained with ZN/PVA nanofiber containing 4% TQ and electrosprayed with 2% RS nanoparticles (p ≤ .05). According to the results of the present study, biodegradable ZN/PVA nanofiber containing TQ and electrosprayed with RS nanoparticles can be used as a novel active packaging material in the food industry.
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Affiliation(s)
- Majid Aminzare
- Department of Food Safety and Hygiene, School of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Saeideh Soltan Ahmadi
- Department of Food Safety and Hygiene, School of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Hassan Hassanzad Azar
- Department of Food Safety and Hygiene, School of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Nasser Nikfarjam
- Department of ChemistryInstitute for Advanced Studies in Basic SciencesZanjanIran
| | - Shahin Roohinejad
- Division of Food and Nutrition, Burn and Wound Healing Research CenterShiraz University of Medical SciencesShirazIran
| | - Ralf Greiner
- Department of Food Technology and Bioprocess Engineering, Max Rubner‐InstitutFederal Research Institute of Nutrition and FoodKarlsruheGermany
| | - Reza Tahergorabi
- Food and Nutritional Sciences ProgramNorth Carolina Agricultural and Technical State UniversityGreensboroNorth CarolinaUSA
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Almakimi A, Ben Ali A, Hussein IA, Bai B. Evaluation of Novel Preformed Particle Gel System for Conformance Control in Mature Oil Reservoirs. Gels 2024; 10:70. [PMID: 38247792 PMCID: PMC10815741 DOI: 10.3390/gels10010070] [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: 12/25/2023] [Revised: 01/14/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
To address challenges associated with excessive water production in mature oil reservoirs, this study introduces a carboxymethyl cellulose (CMC)-based material as a novel preformed particle gel (PPG) designed to plug excessive water pathways and redistribute the subsequent injected water toward unswept zones. Through microwave-assisted grafting copolymerization of CMC with acrylamide (AM), we successfully generated multi-sized dry particles within the range of 250-800 µm. Comprehensive analyses, including Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), have confirmed the chemical composition and morphology of the resulting carboxymethyl cellulose-grafted crosslinked polyacrylamide (CMC/PAMBA). Swelling kinetics and rheology tests were conducted to confirm the ability of this novel PPG system to perform at different reservoir conditions. The results of core flooding experiments showed that the CMC/PAMBA PPG is capable of plugging open fractures with a water breakthrough pressure gradient of up to 144 psi/ft. This preformed particle gel (PPG) system was designed specifically for application in Middle East reservoirs, which are distinguished by high salinity and elevated temperature levels. This PPG system is able to swell up to 10 times its original size in seawater and maintain a strength of about 1300 Pa at a temperature of 80 °C. Further optimization is conceivable to enhance injection efficiency and achieve superior plugging outcomes.
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Affiliation(s)
- Abdulaziz Almakimi
- Petroleum Engineering Department, Missouri University of Science and Technology, Rolla, MO 65409, USA;
| | - Ahmed Ben Ali
- Gas Processing Center, Qatar University, Doha P.O. Box 2713, Qatar; (A.B.A.); (I.A.H.)
| | | | - Baojun Bai
- Petroleum Engineering Department, Missouri University of Science and Technology, Rolla, MO 65409, USA;
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Niu X, Zhang Y, Elakneswaran Y, Sasaki M, Takayama T, Kawai H. Effect of Superabsorbent Polymer (SAP) Size on Microstructure and Compressive Strength of Concrete. Polymers (Basel) 2024; 16:197. [PMID: 38256996 PMCID: PMC10820509 DOI: 10.3390/polym16020197] [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: 12/08/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Superabsorbent polymers (SAPs) are hydrophilic, polymeric network materials renowned for their ability to enhance various properties of cementitious materials. This investigation examines the impact of SAP size on the hydration degree, porosity, and compressive strength of cement pastes and concrete under diverse curing conditions and ageing periods. The findings reveal that SAP addition stimulates the hydration of the C2S phase, particularly during the early curing stages, thereby favouring early strength development. However, the effect of SAPs on hydration promotion diminishes as their size increases. Conversely, the size of SAPs affects the hydration range of their action, and the 400 µm SAP demonstrates the most extensive range of hydration enhancement, reaching up to 105 µm. Additionally, SAPs effectively reduce porosity in small pores (4 nm-10 μm), with 200 μm and 400 μm SAPs exhibiting the highest efficacy. While analysing the effects of SAPs on larger pores (>10 μm), the results show that although larger SAPs result in larger average porosity, the total porosity is effectively reduced, particularly in samples incorporating 400 μm SAP. The compressive strength of cement paste, even after 28 days, is slightly reduced following the introduction of SAPs. However, the strength of concrete, due to the naturally occurring pores eliminating the negative effects of the pores produced by SAPs, is significantly increased following the introduction of SAPs, especially 400 µm SAP.
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Affiliation(s)
- Xiaobo Niu
- Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yile Zhang
- Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yogarajah Elakneswaran
- Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Miyu Sasaki
- Industrial & Household Chemicals Research Department, Industrial & Household Solutions Division, Nippon Shokubai, Osaka 564-0034, Japan; (M.S.)
| | - Takeshi Takayama
- Industrial & Household Chemicals Research Department, Industrial & Household Solutions Division, Nippon Shokubai, Osaka 564-0034, Japan; (M.S.)
| | - Hajime Kawai
- Industrial & Household Chemicals Research Department, Industrial & Household Solutions Division, Nippon Shokubai, Osaka 564-0034, Japan; (M.S.)
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Hashemi M, Aminzare M, Hassanzadazar H, Roohinejad S, Tahergorabi R, Bekhit AEA. Impact of sodium alginate-based film loaded with resveratrol and thymol on the shelf life of cooked sausage and the inoculated Listeria monocytogenes. Food Sci Nutr 2023; 11:7855-7869. [PMID: 38107107 PMCID: PMC10724608 DOI: 10.1002/fsn3.3702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/29/2023] [Accepted: 09/08/2023] [Indexed: 12/19/2023] Open
Abstract
In present study, sodium alginate biodegradable films containing different concentrations of resveratrol (RES: 0.002% and 0.004%) or thymol (THY: 0.5% and 1%) and their combinations were prepared, and evaluated for their effects on spoilage-related microbial profile, lipid oxidation, sensory properties, and protective effects against Listeria monocytogenes in beef mortadella sausage during 40 days storage at 4°C. The release rate of phenolic compounds was determined by the Folin-Ciocalteu test. To assess the shelf life of the product, changes in total viable count (TVC), lactic acid bacteria count (LAB), psychrotrophic bacteria count (PTC), pH levels, thiobarbituric acid reactive substances (TBARS) levels, and sensory characteristics (taste, color, odor, and overall acceptability) were evaluated. For the sensory evaluation, a panel of 70 semi-trained judges was selected according to their initial performance. Samples wrapped with sodium alginate films containing 1% THY (alone or combined with different concentrations of RES) exhibited lower bacterial counts compared to other experimental groups at the end of the storage period (6.01-6.35 vs. 6.71-8.17 log10 CFU/g for TVC, 5.37-5.83 vs. 6.07-7.11 log10 CFU/g for LAB, 5.08-5.18 vs. 5.40-7.23 log10 CFU/g for PTC, and 6.53-6.92 vs. 7.23-9.01 log10 CFU/g for inoculated L. monocytogenes). Sodium alginate films containing the combination of 0.004% RES and different concentrations of THY showed higher antioxidant effects than other experimental groups (TBARS values of 1.68-1.99 vs. 2.23-3.80 mg MDA/kg sample). The sodium alginate film containing 0.004% RES + 1% THY exhibited the highest antimicrobial and antioxidant activities and highest sensory scores among all treatments. These findings highlight the potential application of the sodium alginate film containing a combination of RES and THY as an active packaging material with natural preservatives in the meat products industry. This application can effectively extend the shelf life and enhance the microbial safety of clean-label cooked sausages during refrigerated storage.
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Affiliation(s)
- Mahsa Hashemi
- Student Research Committee, Department of Food Safety and Hygiene, School of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Majid Aminzare
- Department of Food Safety and Hygiene, School of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Hassan Hassanzadazar
- Department of Food Safety and Hygiene, School of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Shahin Roohinejad
- Division of Food and Nutrition, Burn and Wound Healing Research CenterShiraz University of Medical SciencesShirazIran
| | - Reza Tahergorabi
- Food and Nutritional Sciences ProgramNorth Carolina Agricultural and Technical State UniversityGreensboroNorth CarolinaUSA
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10
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Jianbo Z, Jun W, Xuanlin W, Hui C. Coupling fermentation of glutamic acid and γ-polyglutamic acid and preparation of poly(amino acid) superabsorbent polymers. BMC Biotechnol 2023; 23:47. [PMID: 37907900 PMCID: PMC10617152 DOI: 10.1186/s12896-023-00819-0] [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: 03/16/2023] [Accepted: 10/18/2023] [Indexed: 11/02/2023] Open
Abstract
γ-polyglutamic acid (γ-PGA) is a biomarker that can be directly obtained by microbial fermentation. Poly(amino acid) superabsorbent polymers (SAPs) were prepared with purified γ-PGA as raw material and ethylene glycol diglycidyl ether (EGDGE) as a cross-linking agent. However, γ-PGA fermentation broth has a high viscosity, requires complex extraction and separation processes, and entails high energy consumption, resulting in the high cost of poly (amino acid) SAPs. Therefore, the coupling fermentation processes of glutamate polyglutamic acid, the process of using glutamate fermentation broth instead of pure glutamate powder for fermentation, and the process of treating the fermentation broth under conditions of centrifugation, UV irradiation, and high temperature, were studied. The results showed that the yield of γ-PGA after centrifugation decreased by 5%, but it did not affect the synthesis of hydrogels, and the addition of γ-PGA fermentation broth had a significant effect on the performance of γ-PGA-co-PASP SAPs. The proposed method not only helps avoid the separation of complex γ-PGA fermentation broth and reduces the cost, but it also helps improve the performance of the super-absorbent resin, which has great application potential.
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Affiliation(s)
- Zhao Jianbo
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Chemistry and Chemical Engineering, Tarim University, No.1487 Tarim East Avenue, Alar, Xinjiang, 843300, PR China.
- Beijing Key Laboratory of Biochemical Engineering, Beijing University of Chemical Technology, No.15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, PR China.
| | - Wei Jun
- Beijing Key Laboratory of Biochemical Engineering, Beijing University of Chemical Technology, No.15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, PR China
| | - Wang Xuanlin
- Beijing Key Laboratory of Biochemical Engineering, Beijing University of Chemical Technology, No.15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, PR China
| | - Cao Hui
- Beijing Key Laboratory of Biochemical Engineering, Beijing University of Chemical Technology, No.15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, PR China.
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11
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Usman M, Taj MB, Carabineiro SAC. Gum-based nanocomposites for the removal of metals and dyes from waste water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:102027-102046. [PMID: 37674071 PMCID: PMC10567940 DOI: 10.1007/s11356-023-29389-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/14/2023] [Indexed: 09/08/2023]
Abstract
The importance of water for all living organisms is unquestionable and protecting its sources is crucial. In order to reduce water contaminants, like toxic metals and organic dyes, researchers are exploring different techniques, such as adsorption, photocatalytic degradation, and electrolysis. Novel materials are also being sought. In particular, biopolymers like guar gum and xanthan gum, that are eco-friendly, non-toxic, reusable, abundant and cost-effective, have enormous potential. Gum-based nanocomposites can be prepared and used for removing heavy metals and colored dyes by adsorption and degradation, respectively. This review explains the significance of gum-based nanomaterials in waste water treatment, including preparative steps, characterization techniques, kinetics models, and the degradation and adsorption mechanisms involved.
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Affiliation(s)
- Muhammad Usman
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Muhammad Babar Taj
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
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12
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Sudheer S, Bandyopadhyay S, Bhat R. Sustainable polysaccharide and protein hydrogel-based packaging materials for food products: A review. Int J Biol Macromol 2023; 248:125845. [PMID: 37473880 DOI: 10.1016/j.ijbiomac.2023.125845] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/09/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023]
Abstract
Sustainable food packaging is a necessary element to ensure the success of a food system, the accomplishment of which is weighed in terms of quality retention and ensured products safety. Irrespective of the raised environmental concerns regarding petroleum-based packaging materials, a sustainable analysis and a lab to land assessment should be a priority to eliminate similar fates of new material. Functionalized bio-based hydrogels are one of the smartest packaging inventions that are expected to revolutionize the food packaging industry. Although in this review, the focus relies on recent developments in the sustainable bio-based hydrogel packaging materials, natural biopolymers such as proteins and polysaccharides from which hydrogels could be obtained, the challenges encountered in hydrogel-based packaging materials and the future prospects of hydrogel-based food packaging materials are also discussed. Moreover, the need for 'Life Cycle Assessment' (LCA), stress on certifications and a sustainable waste management system is also suggested which can bring both food and packaging into the same recycling bins.
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Affiliation(s)
- Surya Sudheer
- ERA-Chair for Food (By-) Products Valorisation Technologies (VALORTECH), Estonian University of Life Sciences, Fr. R. Kreutzwaldi 1, Tartu 510014, Estonia.
| | - Smarak Bandyopadhyay
- Centre of Polymeric Systems, University Institute, Tomas Bata University in Zlin, Tř. T. Bati 5678, Zlin 76001, Czech Republic
| | - Rajeev Bhat
- ERA-Chair for Food (By-) Products Valorisation Technologies (VALORTECH), Estonian University of Life Sciences, Fr. R. Kreutzwaldi 1, Tartu 510014, Estonia.
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Aslam J, Zehra S, Mobin M, Quraishi MA, Verma C, Aslam R. Metal/metal oxide-carbohydrate polymers framework for industrial and biological applications: Current advancements and future directions. Carbohydr Polym 2023; 314:120936. [PMID: 37173012 DOI: 10.1016/j.carbpol.2023.120936] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/09/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023]
Abstract
Recently, the development and consumption of metal/metal oxide carbohydrate polymer nanocomposites (M/MOCPNs) are withdrawing significant attention because of their numerous salient features. Metal/metal oxide carbohydrate polymer nanocomposites are being used as environmentally friendly alternatives for traditional metal/metal oxide carbohydrate polymer nanocomposites exhibit variable properties that make them excellent prospects for a variety of biological and industrial uses. In metal/metal oxide carbohydrate polymer nanocomposites, carbohydrate polymers bind with metallic atoms and ions using coordination bonding in which heteroatoms of polar functional groups behave as adsorption centers. Metal/metal oxide carbohydrate polymer nanocomposites are widely used in woundhealing, additional biological uses and drug delivery, heavy ions removal or metal decontamination, and dye removal. The present review article features the collection of some major biological and industrial applications of metal/metal oxide carbohydrate polymer nanocomposites. The binding affinity of carbohydrate polymers with metal atoms and ions in metal/metal oxide carbohydrate polymer nanocomposites has also been described.
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Affiliation(s)
- Jeenat Aslam
- Department of Chemistry, College of Science, Taibah University, Yanbu 30799, Al-Madina, Saudi Arabia.
| | - Saman Zehra
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
| | - Mohammad Mobin
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
| | - M A Quraishi
- Interdisciplinary Research Centre for Advanced Materials, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Chandrabhan Verma
- Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 2533, Abu Dhabi, United Arab Emirates.
| | - Ruby Aslam
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
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14
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Niu P, Mao H, Lim KH, Wang Q, Wang WJ, Yang X. Nanocellulose-Based Hollow Fibers for Advanced Water and Moisture Management. ACS NANO 2023; 17:14686-14694. [PMID: 37459214 DOI: 10.1021/acsnano.3c02553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Natural plant fibers such as cotton have favorable performance in water and moisture management; however, they suffer from inferior processing ability due to limited diameter and length, as well as natural defects. Although commercially available regenerated cellulose fibers such as lyocell fibers can have tunable structures, they rely on the complete dissolution of cellulose molecules, including the highly crystalline parts, leading to inferior mechanical properties. Through a specially designed coaxial wet-spinning process, we prepare a type of hollow fiber using only cellulose nanofibrils (CNFs) as building blocks. It mimics cotton fibers with a lumen structure but with a tunable diameter and a long length. Moreover, such hollow fibers have superior mechanical properties with a Young's modulus of 24.7 GPa and tensile strength of 341 MPa, surpassing lyocell fibers and most wet-spun CNF-based fibers. Importantly, they have 10 times higher wicking ability, wetting rate, drying rate, and maximum wetting ratio compared to lyocell fibers. Together with a superior long-term performance after 500 rounds of wetting-drying tests, such CNF-based hollow fibers are sustainable choices for advanced textile applications. And this study provides a greater understanding of nanoscale building blocks and their assembled macromaterials, which may help to reveal the magic hierarchical design of natural materials, in this case, plant fibers.
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Affiliation(s)
- Panpan Niu
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Hui Mao
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Khak Ho Lim
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Qingyue Wang
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Wen-Jun Wang
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Xuan Yang
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
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15
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Saraswathy M, Komath M, Ragini DD, SomanPillai SarojiniAmma P, Lathikumari SS, Akhandanandan MN. Bactericidal Activity of Superabsorbent Polymer Granules for Their Applications in Respiratory Fluid Solidification Systems. ACS OMEGA 2023; 8:25114-25121. [PMID: 37483248 PMCID: PMC10357423 DOI: 10.1021/acsomega.3c01994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/01/2023] [Indexed: 07/25/2023]
Abstract
Disposal of respiratory secretions from patients having contagious diseases (e.g., COVID-19 and tuberculosis) poses a high risk of infection for healthcare workers. AcryloSorb canister liner bags are highly efficient for the safe handling of contagious respiratory secretions via solidification and disinfection processes. The canister liner bags are lined with disinfectant-impregnated superabsorbent polymer (DSAP) granules. The liner structure in the bag has a patented design that has upward progressive absorbent availability (Indian Patent application # 202041019872). AcryloSorb canister liner bags can decontaminate the fluid secretions absorbed in the bag and solidify within 10 min. The present study focused on the bactericidal effect of DSAP using Gram-negative bacteria, Klebsiella pneumoniae, and Gram-positive bacteria, methicillin-resistantStaphylococcus aureus (MRSA). Disinfectants such as peracetic acid (ethaneperoxic acid), sodium dichloroisocyanurate (sodium 3,5-dichloro-2,4,6-trioxo-1,3,5-triazinan-1-ide), rose bengal (disodium; 2,3,4,5-tetrachloro-6-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl) benzoate), and N,N-dimethyl-N-[3-(triethoxysilyl)propyl]octadecan-1-aminium chloride at different weight ratios were impregnated in superabsorbent polymer (SAP) granules. The bactericidal activities of DSAP were studied along with its solidification capacity. Disinfectants showed different bactericidal activities when impregnated with SAP granules. For example, peracetic acid-impregnated SAP granules (DSAP-P) showed 100% bactericidal activity for both Klebsiella pneumoniae and MRSA at 0.5 wt % peracetic acid. Sodium dichloroisocyanurate-impregnated SAP granules showed 100% bactericidal activity only at 5 wt % sodium dichloroisocyanurate (DSAP-S5). Even though peracetic acid was highly effective, SAP granules collapsed when impregnated with peracetic acid. The ease of handling, disinfection efficacy, and preserving the morphology of SAP granules make DSAP-S5, a suitable candidate for AcryloSorb canister liner bags.
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Affiliation(s)
- Manju Saraswathy
- Department
of Biomaterial Science and Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences
and Technology, Trivandrum 695012, India
| | - Manoj Komath
- Divisin
of Bioceramics, Department of Biomaterial Science and Technology,
Biomedical Technology Wing, Sree Chitra
Tirunal Institute for Medical Sciences and Technology, Trivandrum 695012, India
| | - Deepu Damodharan Ragini
- Department
of Biomaterial Science and Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences
and Technology, Trivandrum 695012, India
| | - Pradeepkumar SomanPillai SarojiniAmma
- Division
of Microbial Technology, Department of Applied Biology, Biomedical
Technology Wing, Sree Chitra Tirunal Institute
for Medical Sciences and Technology, Trivandrum 695012, India
| | - Sreejith Sasidharan Lathikumari
- Department
of Biomaterial Science and Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences
and Technology, Trivandrum 695012, India
| | - Maya Nandkumar Akhandanandan
- Division
of Microbial Technology, Department of Applied Biology, Biomedical
Technology Wing, Sree Chitra Tirunal Institute
for Medical Sciences and Technology, Trivandrum 695012, India
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16
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Kartsonakis IA, Vardakas P, Goulis P, Perkas N, Kyriazis ID, Skaperda Z, Tekos F, Charitidis CA, Kouretas D. Toxicity assessment of core-shell and superabsorbent polymers in cell-based systems. ENVIRONMENTAL RESEARCH 2023; 228:115772. [PMID: 36967000 DOI: 10.1016/j.envres.2023.115772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 05/16/2023]
Abstract
The identification of health risks arising from occupational exposure to submicron/nanoscale materials is of particular interest and toxicological investigations designed to assess their hazardous properties can provide valuable insights. The core-shell polymers poly (methyl methacrylate)@poly (methacrylic acid-co-ethylene glycol dimethacrylate) [PMMA@P (MAA-co-EGDMA)] and poly (n-butyl methacrylate-co-ethylene glycol dimethacrylate)@poly (methyl methacrylate) [P (nBMA-co-EGDMA)@PMMA] could be utilized for the debonding of coatings and for the encapsulation and targeted delivery of various compounds. The hybrid superabsorbent core-shell polymers poly (methacrylic acid-co-ethylene glycol dimethacrylate)@silicon dioxide [P (MAA-co-EGDMA)@SiO2] could be utilized as internal curing agents in cementitious materials. Therefore, the characterization of their toxicological profile is essential to ensure their safety throughout manufacturing and the life cycle of the final products. Based on the above, the purpose of the present study was to assess the acute toxic effects of the above mentioned polymers on cell viability and on cellular redox state in EA. hy926 human endothelial cells and in RAW264.7 mouse macrophages. According to our results, the examined polymers did not cause any acute toxic effects on cell viability after any administration. However, the thorough evaluation of a panel of redox biomarkers revealed that they affected cellular redox state in a cell-specific manner. As regards EA. hy926 cells, the polymers disrupted redox homeostasis and promoted protein carbonylation. Concerning RAW264.7 cells, P (nBMA-co-EGDMA)@PMMA caused disturbances in redox equilibrium and special emphasis was placed on the triphasic dose-response effect detected in lipid peroxidation. Finally, P (MAA-co-EGDMA)@SiO2 activated cellular adaptive mechanisms in order to prevent from oxidative damage.
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Affiliation(s)
- Ioannis A Kartsonakis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Periklis Vardakas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Panagiotis Goulis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Nikolaos Perkas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Ioannis D Kyriazis
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Zoi Skaperda
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Fotios Tekos
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Constantinos A Charitidis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece.
| | - Demetrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece.
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17
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Li J, Zhu Y, Liu M, Liu Z, Zhou T, Liu Y, Cheng D. Network interpenetrating slow-release nitrogen fertilizer based on carrageenan and urea: A new low-cost water and fertilizer regulation carrier. Int J Biol Macromol 2023; 242:124858. [PMID: 37178883 DOI: 10.1016/j.ijbiomac.2023.124858] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
Modern agriculture presents new requirements of low cost, high water retention and degradability for superabsorbent and slow-release fertilizers. In this study, carrageenan (CG), acrylic acid (AA), N, N '-methylene diacrylamide (MBA), urea and ammonium persulfate (APS) were used as raw materials. A kind of high water absorption, water retention, nitrogen slow release and biodegradable carrageenan superabsorbent (CG-SA) was prepared by grafting copolymerization. The optimal CG-SA was obtained with a water absorption rate of 680.45 g/g by orthogonal L18(3)7 experiments and single-factor experiments. The water absorption behavior of CG-SA in deionized water and salt solution were studied. The CG-SA was characterized before and after degradation by FTIR, SEM. The nitrogen release behavior and kinetic characteristics of CG-SA were investigated. In addition, CG-SA degraded 58.33 % and 64.35 % in soil at 25 °C and 35 °C after 28 days. All the results indicated that the low-cost and degradable CG-SA can achieve simultaneous slow release of water and nutrients, which is expected to be widely used as a new water-fertilizer integration technology in arid and poor areas.
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Affiliation(s)
- Jinxi Li
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yan Zhu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Mingshang Liu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Zihan Liu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Tongtong Zhou
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yan Liu
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Dongdong Cheng
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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18
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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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19
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Jaramillo-Quiceno N, Rueda-Mira S, Marín JFS, Álvarez-López C. Development of a novel silk sericin-based hydrogel film by mixture design. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-023-03484-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
AbstractSericin has been used in functional and potentially biodegradable materials for cosmetics, biomedical, agricultural, and food applications. It is a natural polymer with applications in absorbent materials, such as hydrogels, because of its hydrophilic character. However, sericin by itself is brittle, and in contact with water has low structural stability, being necessary its blending with other polymers or the application of crosslinking processes. In this work, hydrogel films were prepared from different mixtures containing sericin (SS), carboxymethylcellulose (CMC), and polyvinyl alcohol (PVA), using a simple and environmentally friendly method consisting of a gelling process followed by solvent casting. A mixture design was applied to assess the incidence of each component and its interaction with the output variables of interest. Two response variables were evaluated in each formulation: water absorption capacity (WA) and gel fraction (GF). It was also possible to model the output variables based on the proportions of the sample components. In addition, a set of formulations were used to produce hydrogels with high water absorption rates while maintaining their structural stability. The optimal hydrogel formulation (HF) was structurally and thermally characterized by FTIR and TGA, respectively. Hydrogel morphology was also studied by scanning electron microscopy (SEM). The results of this study constitute an important contribution to the design of novel processing routes to extend the use of silk sericin in the development of new materials.
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20
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Yamano S, Takeda T, Goto Y, Hirai S, Furukawa Y, Kikuchi Y, Misumi K, Suzuki M, Takanobu K, Senoh H, Saito M, Kondo H, Kobashi Y, Okamoto K, Kishimoto T, Umeda Y. Mechanisms of pulmonary disease in F344 rats after workplace-relevant inhalation exposure to cross-linked water-soluble acrylic acid polymers. Respir Res 2023; 24:47. [PMID: 36782232 PMCID: PMC9926550 DOI: 10.1186/s12931-023-02355-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 02/01/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Recently in Japan, six workers at a chemical plant that manufactures resins developed interstitial lung diseases after being involved in loading and packing cross-linked water-soluble acrylic acid polymers (CWAAPs). The present study focused on assessing lung damage in rats caused by workplace-relevant inhalation exposure to CWAAP and investigated the molecular and cellular mechanisms involved in lung lesion development. METHODS Using a whole-body inhalation exposure system, male F344 rats were exposed once to 40 or 100 mg/m3 of CWAAP-A for 4 h or to 15 or 40 mg/m3 of CWAAP-A for 4 h per day once per week for 2 months (9 exposures). In a separate set of experiments, male F344 rats were administered 1 mg/kg CWAAP-A or CWAAP-B by intratracheal instillation once every 2 weeks for 2 months (5 doses). Lung tissues, mediastinal lymph nodes, and bronchoalveolar lavage fluid were collected and subjected to biological and histopathological analyses. RESULTS A single 4-h exposure to CWAAP-A caused alveolar injury, and repeated exposures resulted in regenerative changes in the alveolar epithelium with activation of TGFβ signaling. During the recovery period after the last exposure, some alveolar lesions were partially healed, but other lesions developed into alveolitis with fibrous thickening of the alveolar septum. Rats administered CWAAP-A by intratracheal instillation developed qualitatively similar pulmonary pathology as rats exposed to CWAAP-A by inhalation. At 2 weeks after intratracheal instillation, rats administered CWAAP-B appeared to have a slightly higher degree of lung lesions compared to rats administered CWAAP-A, however, there was no difference in pulmonary lesions in the CWAAP-A and CWAAP-B exposed rats examined 18 weeks after administration of these materials. CONCLUSIONS The present study reports our findings on the cellular and molecular mechanisms of pulmonary disease in rats after workplace-relevant inhalation exposure to CWAAP-A. This study also demonstrates that the lung pathogenesis of rats exposed to CWAAP-A by systemic inhalation was qualitatively similar to that of rats administered CWAAP-A by intratracheal instillation.
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Affiliation(s)
- Shotaro Yamano
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan.
| | - Tomoki Takeda
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan.
| | - Yuko Goto
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Shigeyuki Hirai
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Yusuke Furukawa
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Yoshinori Kikuchi
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Kyohei Misumi
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Masaaki Suzuki
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Kenji Takanobu
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Hideki Senoh
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Misae Saito
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Hitomi Kondo
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
| | - Yoichiro Kobashi
- Department of Pathology, Tenri Hospital, Tenri, Nara, 632-8552, Japan
| | - Kenzo Okamoto
- Department of Pathology, Hokkaido Chuo Rosai Hospital, Japan Organization of Occupational Health and Safety, Iwamizawa, Hokkaido, 068-0004, Japan
| | - Takumi Kishimoto
- Director of Research and Training Center for Asbestos-Related Diseases, Okayama, Okayama, 702-8055, Japan
| | - Yumi Umeda
- Japan Bioassay Research Center, Japan Organization of Occupational Health and Safety, Hadano, Kanagawa, 257-0015, Japan
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21
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Adjuik TA, Nokes SE, Montross MD. Biodegradability of bio‐based and synthetic hydrogels as sustainable soil amendments: A review. J Appl Polym Sci 2023. [DOI: 10.1002/app.53655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Toby A. Adjuik
- Department of Biosystems and Agricultural Engineering University of Kentucky Lexington Kentucky USA
- Department of Agronomy Iowa State University Ames Iowa USA
| | - Sue E. Nokes
- Department of Biosystems and Agricultural Engineering University of Kentucky Lexington Kentucky USA
| | - Michael D. Montross
- Department of Biosystems and Agricultural Engineering University of Kentucky Lexington Kentucky USA
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22
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Injectable Networks Based on a Hybrid Synthetic/Natural Polymer Gel and Self-Assembling Peptides Functioning as Reinforcing Fillers. Polymers (Basel) 2023; 15:polym15030636. [PMID: 36771937 PMCID: PMC9920810 DOI: 10.3390/polym15030636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
Double network (DN) hydrogels composed of self-assembling low-molecular-weight gelators and a hybrid polymer network are of particular interest for many emerging biomedical applications, such as tissue regeneration and drug delivery. The major benefits of these structures are their distinct mechanical properties as well as their ability to mimic the hierarchical features of the extracellular matrix. Herein, we describe a hybrid synthetic/natural polymer gel that acts as the initial network based on sodium alginate and a copolymer, namely poly(itaconic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro (5,5) undecane). The addition of amino acids and peptide-derived hydrogelators, such as Fmoc-Lys-Fmoc-OH and Fmoc-Gly-Gly-Gly-OH, to the already-made network gives rise to DNs crosslinked via non-covalent interactions. Fourier transform infrared spectroscopy (FTIR) and thermal analysis confirmed the formation of the DN and highlighted the interactions between the two component networks. Swelling studies revealed that the materials have an excellent water absorption capacity and can be classified as superabsorbent gels. The rheological properties were systematically investigated in response to different variables and showed that the prepared materials present injectability and a self-healing ability. SEM analysis revealed a morphology consisting of a highly porous and interconnected fibrous network. Finally, the biocompatibility was evaluated using the MTT assay on dermal fibroblasts, and the results indicated that the new structures are non-toxic and potentially useful for biomedical applications.
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23
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Zhang Z, Abidi N, Lucia L, Chabi S, Denny CT, Parajuli P, Rumi SS. Cellulose/nanocellulose superabsorbent hydrogels as a sustainable platform for materials applications: A mini-review and perspective. Carbohydr Polym 2023; 299:120140. [PMID: 36876763 DOI: 10.1016/j.carbpol.2022.120140] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 10/14/2022]
Abstract
Superabsorbent hydrogels (SAH) are crosslinked three-dimensional networks distinguished by their super capacity to stabilize a large quantity of water without dissolving. Such behavior enables them to engage in various applications. Cellulose and its derived nanocellulose can become SAHs as an appealing, versatile, and sustainable platform because of abundance, biodegradability, and renewability compared to petroleum-based materials. In this review, a synthetic strategy that reflects starting cellulosic resources to their associated synthons, crosslinking types, and synthetic controlling factors was highlighted. Representative examples of cellulose and nanocellulose SAH and an in-depth discussion of structure-absorption relationships were listed. Finally, various applications of cellulose and nanocellulose SAH, challenges and existing problems, and proposed future research pathways were listed.
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Affiliation(s)
- Zhen Zhang
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA; Department of Mechanical Engineering, The University of New Mexico, Albuquerque, NM, USA; Department of Forest Biomaterials, NC State University, Raleigh, NC, USA.
| | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA.
| | - Lucian Lucia
- Department of Forest Biomaterials, NC State University, Raleigh, NC, USA; Department of Chemistry, NC State University, Raleigh, NC, USA; Joint Department of Biomedical Engineering, NC State University and University of North Carolina at Chapel Hill, Raleigh, NC, USA.
| | - Sakineh Chabi
- Department of Mechanical Engineering, The University of New Mexico, Albuquerque, NM, USA
| | - Christian T Denny
- Department of Chemical and Biological Engineering, The University of New Mexico, Albuquerque, NM, USA
| | - Prakash Parajuli
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA
| | - Shaida Sultana Rumi
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA
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24
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Boulett A, Roa K, Oyarce E, Xiao LP, Sun RC, Pizarro GDC, Sánchez J. Reusable hydrogels based on lignosulfonate and cationic polymer for the removal of Cr(VI) from wastewater. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Aliakbar Ahovan Z, Esmaeili Z, Eftekhari BS, Khosravimelal S, Alehosseini M, Orive G, Dolatshahi-Pirouz A, Pal Singh Chauhan N, Janmey PA, Hashemi A, Kundu SC, Gholipourmalekabadi M. Antibacterial smart hydrogels: New hope for infectious wound management. Mater Today Bio 2022; 17:100499. [PMID: 36466959 PMCID: PMC9709163 DOI: 10.1016/j.mtbio.2022.100499] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/31/2022] [Accepted: 11/18/2022] [Indexed: 11/21/2022] Open
Abstract
Millions of people die annually due to uncured wound infections. Healthcare systems incur high costs to treat wound infections. Tt is predicted to become more challenging due to the rise of multidrug-resistant conditions. During the last decades, smart antibacterial hydrogels could attract attention as a promising solution, especially for skin wound infections. These antibacterial hydrogels are termed 'smart' due to their response to specific physical and chemical environmental stimuli. To deliver different drugs to particular sites in a controlled manner, various types of crosslinking strategies are used in the manufacturing process. Smart hydrogels are designed to provide antimicrobial agents to the infected sites or are built from polymers with inherent disinfectant properties. This paper aims to critically review recent pre-clinical and clinical advances in using smart hydrogels against skin wound infections and propose the next best thing for future trends. For this purpose, an introduction to skin wound healing and disease is presented and intelligent hydrogels responding to different stimuli are introduced. Finally, the most promising investigations are discussed in their related sections. These studies can pave the way for producing new biomaterials with clinical applications.
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Affiliation(s)
- Zahra Aliakbar Ahovan
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Esmaeili
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Sadjad Khosravimelal
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Morteza Alehosseini
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Gorka Orive
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Vitoria-Gasteiz, Spain
- University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua). Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore
| | | | | | - Paul A. Janmey
- Bioengineering Department, University of Pennsylvania, Philadelphia, USA
| | - Ali Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Subhas C. Kundu
- 3Bs Research Group, I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Guimaraes, Portugal
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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26
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Krasnopeeva EL, Panova GG, Yakimansky AV. Agricultural Applications of Superabsorbent Polymer Hydrogels. Int J Mol Sci 2022; 23:ijms232315134. [PMID: 36499461 PMCID: PMC9738811 DOI: 10.3390/ijms232315134] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022] Open
Abstract
This review presents data from the past five years on the use of polymeric superabsorbent hydrogels in agriculture as water and nutrient storage and retention materials, as well as additives that improve soil properties. The use of synthetic and natural polymeric hydrogels for these purposes is considered. Although natural polymers, such as various polysaccharides, have undoubted advantages related to their biocompatibility, biodegradability, and low cost, they are inferior to synthetic polymers in terms of water absorption and water retention properties. In this regard, the most promising are semi-synthetic polymeric superabsorbents based on natural polymers modified with additives or grafted chains of synthetic polymers, which can combine the advantages of natural and synthetic polymeric hydrogels without their disadvantages. Such semi-synthetic polymers are of great interest for agricultural applications, especially in dry regions, also because they can be used to create systems for the slow release of nutrients into the soil, which are necessary to increase crop yields using environmentally friendly technologies.
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Affiliation(s)
- Elena L. Krasnopeeva
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Gaiane G. Panova
- Agrophysical Research Institute, Russian Academy of Sciences, St. Petersburg 195220, Russia
| | - Alexander V. Yakimansky
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
- Correspondence:
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27
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Bachra Y, Grouli A, Damiri F, Zhu XX, Talbi M, Berrada M. Synthesis, Characterization, and Swelling Properties of a New Highly Absorbent Hydrogel Based on Carboxymethyl Guar Gum Reinforced with Bentonite and Silica Particles for Disposable Hygiene Products. ACS OMEGA 2022; 7:39002-39018. [PMID: 36340181 PMCID: PMC9631763 DOI: 10.1021/acsomega.2c04744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Superabsorbent polymers derived from petroleum have been widely used as the primary component of high-water-absorption disposable sanitary products. However, environmental concerns as well as unstable market prices influence the quality of disposable hygiene products. The development of superabsorbent polymers from natural, non-petroleum-derived materials has become more predominant. In the present study, two borax-cross-linked carboxymethyl guar-based superabsorbents with bentonite (CMG-Bt) and fumed silica particle reinforcement (CMG-Bt-Si) were synthesized. The materials have been fully characterized by various techniques. The swelling behavior was studied through free swelling capacity (FSC) and centrifuge retention capacity (CRC). The swelling kinetics and urea absorption capacity were further analyzed. The effects of the cross-linking ratio, mineral clay, silica particles, and pH of the liquids on the swelling properties of the superabsorbents have been studied. The incorporation of silica particles demonstrated a positive effect on water uptake reaching 78.63 and 41.09 g/g of FSC and CRC, respectively, at an optimum pH of 6.8. The optimum swelling kinetics were attributed to CMG-Bt-Si of 5 wt % silica particle content, indicating a velocity parameter (ζ) of 41 s in saline solution. Finally, the highest swelling values were obtained at 10, 10, and 5 wt % for the cross-linking ratio, bentonite content, and silica particle content, respectively; in addition, the absorption of urea by the CMG-Bt-Si material was also confirmed.
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Affiliation(s)
- Yahya Bachra
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
| | - Ayoub Grouli
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
| | - Fouad Damiri
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
| | - X. X. Zhu
- Department
of Chemistry, University of Montreal, C.P. 6128, Succ. Centre-ville, MontrealH3C 3J7, QC, Canada
| | - Mohammed Talbi
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
| | - Mohammed Berrada
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
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28
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Duceac IA, Coseri S. Biopolymers and their derivatives: Key components of advanced biomedical technologies. Biotechnol Adv 2022; 61:108056. [DOI: 10.1016/j.biotechadv.2022.108056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/26/2022] [Accepted: 10/23/2022] [Indexed: 11/02/2022]
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29
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Eco-friendly and biodegradable sodium alginate/quaternized chitosan hydrogel for controlled release of urea and its antimicrobial activity. Carbohydr Polym 2022; 291:119555. [DOI: 10.1016/j.carbpol.2022.119555] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 04/12/2022] [Accepted: 04/27/2022] [Indexed: 01/30/2023]
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30
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Performance of a novel, eco‐friendly, cellulose‐based superabsorbent polymer (
Cellulo‐SAP
): Absorbency, stability, reusability, and biodegradability. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Cecone C, Hoti G, Caldera F, Zanetti M, Trotta F, Bracco P. NADES-derived beta cyclodextrin-based polymers as sustainable precursors to produce sub-micrometric cross-linked mats and fibrous carbons. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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32
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Menceloğlu Y, Menceloğlu YZ, Seven SA. Triblock Superabsorbent Polymer Nanocomposites with Enhanced Water Retention Capacities and Rheological Characteristics. ACS OMEGA 2022; 7:20486-20494. [PMID: 35755356 PMCID: PMC9219046 DOI: 10.1021/acsomega.1c06961] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Superabsorbent polymers (SAPs) are useful polymers in a wide range of application fields ranging from the hygiene industry to construction and agriculture. As versatility and high water absorption capacity are their important merits, SAPs usually suffer from low water retention capacity (fast release) and weak mechanical properties. To address these drawbacks, a set of new superabsorbent polymer-Halloysite nanotube (HNT) nanocomposites was synthesized via free radical polymerization of acrylamide, 2-acrylamido-2-methylpropane-1-sulfonic acid, and acrylic acid in the presence of vinyltrimethoxysilane (VTMS) as the crosslinker. FTIR and TGA characterizations confirm the polymerization of SAP and successful incorporation of HNTs into the SAP polymer matrix. The effect of the HNT nanofiller amount in the nanocomposite polymer matrix was investigated with swelling-release performance tests, crosslink density calculations, and rheology measurements. It was found that equilibrium swelling ratios are correlated and therefore can be tuned via the crosslink densities of nanocomposites, while water retention capacities are governed by storage moduli. A maximum swelling of 537 g/g was observed when 5 wt % HNT was incorporated, in which the crosslink density is the lowest. Among the SAP nanocomposites prepared, the highest storage modulus was observed when 1 wt % of nanofiller was incorporated, which coincides with the nanocomposite with the longest water retention. The water release duration of SAPs was prolonged up to 27 days with 1% HNT addition in parallel with the achieved maximum storage modulus. Finally, three different incorporation mechanisms of the HNT nanofiller into the SAP nanocomposite structure were proposed and confirmed with rheology measurements. This study provides a rapid synthesis method for SAP nanocomposites with enhanced water retention capacities and explains the relationship between swelling and crosslink density and water retention and mechanical properties of SAP nanocomposites.
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Affiliation(s)
- Yeşim Menceloğlu
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla, 34956 Istanbul, Turkey
| | - Yusuf Ziya Menceloğlu
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla, 34956 Istanbul, Turkey
- Sabanci
University Integrated Manufacturing Technologies Research and Application
Center & Composite Technologies Center of Excellence, Teknopark, Pendik, 34906 Istanbul, Turkey
- Sabanci
University Nanotechnology Research and Application Center, SUNUM, 34956 Istanbul, Turkey
| | - Senem Avaz Seven
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla, 34956 Istanbul, Turkey
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33
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Nanoarchitectonics for Biodegradable Superabsorbent Based on Carboxymethyl Starch and Chitosan Cross-Linked with Vanillin. Int J Mol Sci 2022; 23:ijms23105386. [PMID: 35628197 PMCID: PMC9142128 DOI: 10.3390/ijms23105386] [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: 04/07/2022] [Revised: 05/08/2022] [Accepted: 05/09/2022] [Indexed: 12/10/2022] Open
Abstract
Due to the growing demand for sustainable hygiene products (that will exhibit biodegradability and compostability properties), the challenge of developing a superabsorbent polymer that absorbs significant amounts of liquid has been raised so that it can be used in the hygiene sector in the future. The work covers the study of the swelling and dehydration kinetics of hydrogels formed by grafting polymerization of carboxymethyl starch (CMS) and chitosan (Ch). Vanillin (Van) was used as the crosslinking agent. The swelling and dehydration kinetics of the polymers were measured in various solutes including deionized water buffers with pH from 1 to 12 and in aqueous solutions of sodium chloride at 298 and 311 K. The surface morphology and texture properties of the analyzed hydrogels were observed by scanning electron microscopy (SEM). The influence of this structure on swelling and dehydration is discussed. Fourier transform infrared (FTIR) analyses confirmed the interaction between the carboxymethyl starch carbonyl groups and the chitosan amino groups in the resulting hydrogels. Additionally, spectroscopic analyses confirmed the formation of acetal crosslink bridges including vanillin molecules. The chemical dynamics studies revealed that new hydrogel dehydration kinetics strongly depend on the vanillin content. The main significance of the study concerns the positive results of the survey for the new superabsorbent polymer material, coupling high fluid absorbance with biodegradability. The studies on biodegradability indicated that resulting materials show good environmental degradability characteristics and can be considered true biodegradable superabsorbent polymers.
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34
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Synthesis of cellulose-based superabsorbent hydrogel with high salt tolerance for soil conditioning. Int J Biol Macromol 2022; 209:1169-1178. [PMID: 35413317 DOI: 10.1016/j.ijbiomac.2022.04.039] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/02/2022] [Accepted: 04/05/2022] [Indexed: 11/24/2022]
Abstract
In this study, cellulose-based superabsorbent hydrogel was synthesized from sodium carboxymethyl cellulose (CMC-Na), acrylic acid (AA), and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) to enhance its water absorbency and salt tolerance for soil-conditioning applications in areas suffering from drought and soil salinization. Superabsorbent hydrogels (SHs) were prepared by CMC-Na and AMPS successfully, using chemical graft technology. Structure, morphology, thermal stability, and water absorbency of SHs were deduced. The cellulose-based hydrogel showed a high salt tolerance that the maximum water absorbency reached 604 and 119% in distilled water and saline water, respectively. The swelling behavior in aqueous solvents indicated that the water absorption of hydrogels was improved with the increasing ratio of CMC-Na. All SHs exhibited adsorption of nitrogen with the maximum adsorption of ammonia nitrogen 30 mg·g-1 and the presence of hydrogels could slow down the loss of nutrients in the soil. This study provided a feasible strategy that AMPS was substituted by CMC-Na to synthesize SHs with strong water absorbency and high salt tolerance which could be efficiently applied in agriculture as a soil conditioner.
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35
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Chiaregato CG, França D, Messa LL, Dos Santos Pereira T, Faez R. A review of advances over 20 years on polysaccharide-based polymers applied as enhanced efficiency fertilizers. Carbohydr Polym 2022; 279:119014. [PMID: 34980357 DOI: 10.1016/j.carbpol.2021.119014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/28/2022]
Abstract
Over the last 20 years, polysaccharide-based materials have garnered attention in the enhanced efficiency fertilizers (EEFs) research. Biodegradability, non-toxicity, water-solubility, swellability, and ease of chemical modification make these polymers suitable for agricultural applications. In this review, the polysaccharides-based EEFs advances are summarized over the polymer and co-materials selection, the methods, and the chemical/structure aspects necessary for an appropriate production. We also briefly discuss terminologies, nutrient release mechanisms, biodegradation, and future trends. The most used polysaccharides are chitosan, starch, and alginate, and the non-Fickian model most describes the release mechanism. It is dependent on the relaxation of polymer chains by the matrix swelling followed by the nutrient diffusion. EEFs-polymers-based should be designed as more packed and less porous structures to avoid the immediate contact of the fertilizer with the surrounding water, improving fertilizer retention. Furthermore, the preparation methods will determine the scale-up of the material.
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Affiliation(s)
- Camila Gruber Chiaregato
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Débora França
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Lucas Luiz Messa
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Tamires Dos Santos Pereira
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Roselena Faez
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil.
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36
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Chen J, Wu J, Raffa P, Picchioni F, Koning CE. Superabsorbent Polymers: From long-established, microplastics generating systems, to sustainable, biodegradable and future proof alternatives. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2021.101475] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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37
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Aminzare M, Moniri R, Hassanzad Azar H, Mehrasbi MR. Evaluation of antioxidant and antibacterial interactions between resveratrol and eugenol in carboxymethyl cellulose biodegradable film. Food Sci Nutr 2022; 10:155-168. [PMID: 35035918 PMCID: PMC8751429 DOI: 10.1002/fsn3.2656] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/01/2021] [Accepted: 10/28/2021] [Indexed: 02/02/2023] Open
Abstract
The aim of present study was to compare the in vitro antioxidant and antibacterial properties of carboxymethyl cellulose (CMC) films containing resveratrol (RES) and eugenol (EUG), alone and in combination, and to calculate the dose interactions between them. At first, the total phenolic content of CMC films was evaluated. Then, their antioxidant and antibacterial effects of films were determined using DPPH, reducing power, disk diffusion, and broth dilution methods. Finally, concentrations of RES and EUG which showed better results in the CMC films were added in combination forms to calculate their antioxidant and antibacterial interactions. The results showed that addition of RES and/or EUG to CMC films increased the total phenolic content, free radicals scavenging activity, reducing power, and antibacterial activities of the films (p ≤ .05). Gram-positive bacteria were more susceptible than Gram-negatives. In addition, the combined use of RES and EUG in CMC films had synergistic antioxidant and antagonistic antibacterial effects. The best results belonged to the film containing RES (8 µg/ml) + EUG (8 mg/ml) (p ≤ .05). Considering the results of the present research, we can utilize CMC biodegradable film containing RES and EUG as a natural active packaging in food industry.
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Affiliation(s)
- Majid Aminzare
- Department of Food Safety and HygieneSchool of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Roya Moniri
- Department of Food Safety and HygieneSchool of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Hassan Hassanzad Azar
- Department of Food Safety and HygieneSchool of Public HealthZanjan University of Medical SciencesZanjanIran
| | - Mohammad Reza Mehrasbi
- Department of Food Safety and HygieneSchool of Public HealthZanjan University of Medical SciencesZanjanIran
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38
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Cecone C, Hoti G, Zanetti M, Trotta F, Bracco P. Sustainable production of curable maltodextrin-based electrospun microfibers. RSC Adv 2021; 12:762-771. [PMID: 35425106 PMCID: PMC8978640 DOI: 10.1039/d1ra06785k] [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: 09/09/2021] [Accepted: 12/17/2021] [Indexed: 12/04/2022] Open
Abstract
Maltodextrins are inexpensive, water-soluble starch hydrolysis products composed of high molecular weight polysaccharide molecules. This feature allows their water solutions to be processed by electrospinning to produce bio-based microfibrous mats. Also, the presence of hydroxyl functions along the maltodextrin's backbone enables cross-linking reactions to be performed, necessary to overcome the intrinsic solubility of the starting material, by exploiting suitable functional molecules. In this work, the electrospinning process to obtain fibre deposition from water solutions of five different commercial maltodextrins was firstly optimized. Well-defined fibres with diameters ranging between 1.1 μm and 1.5 μm were successfully obtained using water as the unique solvent. Subsequently, the same maltodextrin-containing water solutions with citric acid added were then processed again. The presence of citric acid did not hinder the spinnability of the studied systems, while the possibility to achieve a one-step thermal curing of the obtained fibres was proved via solubility tests, TGA, and FTIR-ATR analyses. Eventually, bio-based cross-linked mats with fibre diameters ranging from 0.7 μm to 1.4 μm were obtained from the electrospinning of commercial maltodextrins and citric acid, employing water as the unique solvent and environmentally friendly curing processes. This approach enables the reported mats to be further studied for environmental, pharmaceutical, and medical applications.
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Affiliation(s)
- Claudio Cecone
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin Via P. Giuria 7 Turin 10125 Italy
| | - Gjylije Hoti
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin Via P. Giuria 7 Turin 10125 Italy
| | - Marco Zanetti
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin Via P. Giuria 7 Turin 10125 Italy
- Instm Reference Centre, University of Turin Via G. Quarello 15A Turin 10135 Italy
- ICxT Interdepartmental Centre, University of Turin Via Lungo Dora Siena 100 Turin 10153 Italy
| | - Francesco Trotta
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin Via P. Giuria 7 Turin 10125 Italy
| | - Pierangiola Bracco
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin Via P. Giuria 7 Turin 10125 Italy
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39
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Liu J, Tian B, Liu Y, Wan JB. Cyclodextrin-Containing Hydrogels: A Review of Preparation Method, Drug Delivery, and Degradation Behavior. Int J Mol Sci 2021; 22:13516. [PMID: 34948312 PMCID: PMC8703588 DOI: 10.3390/ijms222413516] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/06/2021] [Accepted: 12/14/2021] [Indexed: 02/01/2023] Open
Abstract
Hydrogels possess porous structures, which are widely applied in the field of materials and biomedicine. As a natural oligosaccharide, cyclodextrin (CD) has shown remarkable application prospects in the synthesis and utilization of hydrogels. CD can be incorporated into hydrogels to form chemically or physically cross-linked networks. Furthermore, the unique cavity structure of CD makes it an ideal vehicle for the delivery of active ingredients into target tissues. This review describes useful methods to prepare CD-containing hydrogels. In addition, the potential biomedical applications of CD-containing hydrogels are reviewed. The release and degradation process of CD-containing hydrogels under different conditions are discussed. Finally, the current challenges and future research directions on CD-containing hydrogels are presented.
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Affiliation(s)
- Jiayue Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China;
| | - Bingren Tian
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China;
| | - Yumei Liu
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China;
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China;
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Silva JSFD, Oliveira ACDJ, Soares MFDLR, Soares-Sobrinho JL. Recent advances of Sterculia gums uses in drug delivery systems. Int J Biol Macromol 2021; 193:481-490. [PMID: 34710475 DOI: 10.1016/j.ijbiomac.2021.10.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/19/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022]
Abstract
Trees of the genus Sterculia produce polysaccharide-rich exudates, such as karaya gum (Sterculia urens), chicha gum (Sterculia striata), and Sterculia foetida gum. These anionic biomaterials are biodegradable, with high viscosity, low toxicity, and gelling properties in aqueous media. According to these properties, they show promising applications as a polymer matrix for use in drug delivery systems. For this application, both the chemically modified and the unmodified polysaccharide are used. This review focuses on analyzing the state of the art of recent studies on the use of Sterculia gums in a variety of pharmaceutical forms, such as tablets, hydrogels, micro/nanoparticles, and mucoadhesive films. Sterculia gums-based delivery systems have potential to be explored for new drug delivery systems.
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Affiliation(s)
- Júlia Samara Ferreira da Silva
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil
| | - Antônia Carla de Jesus Oliveira
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil
| | - Mônica Felts de La Roca Soares
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil
| | - José Lamartine Soares-Sobrinho
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil.
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A Novel Superabsorbent Polymer from Crosslinked Carboxymethyl Tragacanth Gum with Glutaraldehyde: Synthesis, Characterization, and Swelling Properties. Int J Biomater 2021; 2021:5008833. [PMID: 34845410 PMCID: PMC8627358 DOI: 10.1155/2021/5008833] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/25/2021] [Accepted: 11/01/2021] [Indexed: 11/17/2022] Open
Abstract
Nowadays, current global environmental problems include measures to eliminate or reduce the negative impact of chemicals from petroleum sources and, therefore, the use of materials from natural resources is increasingly recommended. In this context, natural-based superabsorbent polymers derived from polypeptides and polysaccharides have undergone chemical and biochemical modifications to improve their ability to absorb and retain large amounts of liquids. In the present paper, a new process has been used to overcome the side effects of radical polymerization in the manufacture of conventional polyacrylate superabsorbents (SAPs). Tragacanth gum (TG) was selected to prepare a new superabsorbent material (CMTG-GA) based on carboxymethyl tragacanth (CMTG) crosslinked with glutaraldehyde (GA). The characterization of the polymer was carried out by FTIR, TGA, XRD, and SEM. The effect of the amount of crosslinking agent and the pH on the water absorption capacity was also examined. Subsequently, swelling studies were performed using free swelling capacity (FSC) and centrifuge retention capacity (CRC) techniques in distilled water, tap water, and saline solution. The results showed that the CRC of the new material is not less than 42.1 g/g, which was observed for a ratio of 20% by weight of GA to CMTG. Likewise, the maximum absorption results were 43.9 and 32.14 g/g, respectively, for FSC and CRC at pH 8.0. In addition, a comparison of the swelling capacities of the synthesized product with a commercial SAP extracted from a baby diaper, well known in the Moroccan market, showed that the performances were very similar.
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42
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Functional role of crosslinking in alginate scaffold for drug delivery and tissue engineering: A review. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110807] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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43
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Wang Y, Zhu Y, Liu Y, Mu B, Wang A. Research on preparation and properties of a multifunctional superabsorbent based on semicoke and humic acid. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Correa S, Grosskopf AK, Lopez Hernandez H, Chan D, Yu AC, Stapleton LM, Appel EA. Translational Applications of Hydrogels. Chem Rev 2021; 121:11385-11457. [PMID: 33938724 PMCID: PMC8461619 DOI: 10.1021/acs.chemrev.0c01177] [Citation(s) in RCA: 356] [Impact Index Per Article: 118.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Indexed: 12/17/2022]
Abstract
Advances in hydrogel technology have unlocked unique and valuable capabilities that are being applied to a diverse set of translational applications. Hydrogels perform functions relevant to a range of biomedical purposes-they can deliver drugs or cells, regenerate hard and soft tissues, adhere to wet tissues, prevent bleeding, provide contrast during imaging, protect tissues or organs during radiotherapy, and improve the biocompatibility of medical implants. These capabilities make hydrogels useful for many distinct and pressing diseases and medical conditions and even for less conventional areas such as environmental engineering. In this review, we cover the major capabilities of hydrogels, with a focus on the novel benefits of injectable hydrogels, and how they relate to translational applications in medicine and the environment. We pay close attention to how the development of contemporary hydrogels requires extensive interdisciplinary collaboration to accomplish highly specific and complex biological tasks that range from cancer immunotherapy to tissue engineering to vaccination. We complement our discussion of preclinical and clinical development of hydrogels with mechanical design considerations needed for scaling injectable hydrogel technologies for clinical application. We anticipate that readers will gain a more complete picture of the expansive possibilities for hydrogels to make practical and impactful differences across numerous fields and biomedical applications.
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Affiliation(s)
- Santiago Correa
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Abigail K. Grosskopf
- Chemical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Hector Lopez Hernandez
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Doreen Chan
- Chemistry, Stanford University, Stanford, California 94305, United States
| | - Anthony C. Yu
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | | | - Eric A. Appel
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
- Bioengineering, Stanford University, Stanford, California 94305, United States
- Pediatric
Endocrinology, Stanford University School
of Medicine, Stanford, California 94305, United States
- ChEM-H Institute, Stanford
University, Stanford, California 94305, United States
- Woods
Institute for the Environment, Stanford
University, Stanford, California 94305, United States
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Synthesis of cassava starch-g-acrylic acid/dimethylaminopropyl methacrylamide: A new hydrogel for brine solution. Carbohydr Polym 2021; 266:118109. [PMID: 34044927 DOI: 10.1016/j.carbpol.2021.118109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 11/20/2022]
Abstract
A new hydrogel copolymer was synthesized via the graft copolymerization of acrylic acid (AA) and dimethylaminopropyl methacrylamide (DMAPMA) on cassava starch (CSt) in aqueous solution. FTIR, TGA-FTIR, solid-state 13C NMR, SEM analyses were used to characterize the polymer. The swelling behavior of the polymer was investigated in distilled water and in various brine solutions. The effects of CSt and the ratio of the two monomers on the water absorbency of the polymer was evaluated. CSt improved the polymer swelling properties. Both polyelectrolyte and anti-polyelectrolyte effects occurred and the polymer had good salt-resistance properties in brine solutions. Such polymers have potential applications in the absorption of ultra-high concentration brine solutions.
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Kalinowski M, Woyciechowski P. Chloride Diffusion in Concrete Modified with Polyacrylic Superabsorbent Polymer (SAP) Hydrogel-The Influence of the Water-to-Cement Ratio and SAP-Entrained Water. MATERIALS 2021; 14:ma14154064. [PMID: 34361258 PMCID: PMC8347897 DOI: 10.3390/ma14154064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 11/23/2022]
Abstract
This paper examines the influence of polyacrylic superabsorbent polymers (SAP) on the properties concerning chloride diffusion in cementitious materials. The conducted study investigated the influence of SAP on chloride diffusion in concretes of the initial w/c = 0.4 (for which the changes in compressive strength due to the SAP presence were negligible). The impact on the diffusivity of concrete of several variables was analyzed: the material characteristics of SAP, additional water added to the concrete to make up for the amount of water stored in the SAP structure, and the method of SAP dosing to the mix (either in a non-saturated form or in a hydrogel form). We found that, in the case of modifying concrete with polyacrylic SAP of a median particle size in dry conditions of 330 µm and without additional water, the coefficient of chloride ion diffusion was reduced to 65% of the reference value. The negative influence (increase) of increasing w/ctot by the amount of water initially entrained by SAP on the chloride diffusivity of concrete was identified. The conducted study indicates the premise of the mechanism of the water release from SAP in cementitious composites.
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Ghasemi S, Abareshi H. Swelling behavior of super‐absorbent lipophilic polyelectrolytes based on poly(lauryl acrylate‐
co
‐styrene) comprised quaternary ammonium compounds with tetrafluoroborate anion in organic solvents. NANO SELECT 2021. [DOI: 10.1002/nano.202100068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Soheila Ghasemi
- Department of Chemistry Shiraz University Shiraz 7194684795 I.R. Iran
| | - Habib Abareshi
- Department of Chemistry Shiraz University Shiraz 7194684795 I.R. Iran
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Saya L, Malik V, Singh A, Singh S, Gambhir G, Singh WR, Chandra R, Hooda S. Guar gum based nanocomposites: Role in water purification through efficient removal of dyes and metal ions. Carbohydr Polym 2021; 261:117851. [PMID: 33766347 DOI: 10.1016/j.carbpol.2021.117851] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/20/2021] [Accepted: 02/20/2021] [Indexed: 12/26/2022]
Abstract
Researchers nowadays are relentlessly on a race exploring sustainable materials and techniques for the sequestration of toxic dyes and metal ions from water bodies. Biopolymers such as guar gum, owing to its high abundance, low cost and non-toxicity, are potential candidates in this field. Plenty of hydroxyl groups in the polymer backbone enable guar gum to be functionalised or grafted in a versatile manner proving itself as an excellent starting substance for fabricating upgraded materials meant for diverse applications. This review offers a comprehensive coverage of the role of guar gum-based nanocomposites in removal of dyes and heavy metal ions from waste water through adsorption and photo-catalytic degradation. Isotherm and kinetics models, fabrication routes, characterisation techniques, swelling properties and reusability as well as adsorption and degradation mechanisms are outlined. A detailed analysis with convincing results suggests a good future perspective of implementation of these materials in real-time wastewater treatment technology.
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Affiliation(s)
- Laishram Saya
- Department of Chemistry, Sri Venkateshwara College (University of Delhi), Dhaula Kuan, New Delhi, 110021, India; Department of Chemistry, Manipur University, Canchipur, Imphal, 795003, Manipur, India
| | - Vipin Malik
- Department of Chemistry, Acharya Narendra Dev College (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Aarushi Singh
- Drug Discovery and Development Laboratory, Department of Chemistry (University of Delhi), Delhi, 110007, India; Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Snigdha Singh
- Drug Discovery and Development Laboratory, Department of Chemistry (University of Delhi), Delhi, 110007, India; Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Geetu Gambhir
- Department of Chemistry, Acharya Narendra Dev College (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India
| | - W Rameshwor Singh
- Department of Chemistry, Manipur University, Canchipur, Imphal, 795003, Manipur, India
| | - Ramesh Chandra
- Drug Discovery and Development Laboratory, Department of Chemistry (University of Delhi), Delhi, 110007, India
| | - Sunita Hooda
- Department of Chemistry, Acharya Narendra Dev College (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India.
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Yazdi MK, Seidi F, Jin Y, Zarrintaj P, Xiao H, Esmaeili A, Habibzadeh S, Saeb MR. Crystallization of Polysaccharides. POLYSACCHARIDES 2021. [DOI: 10.1002/9781119711414.ch13] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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50
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Álvarez-Castillo E, Felix M, Bengoechea C, Guerrero A. Proteins from Agri-Food Industrial Biowastes or Co-Products and Their Applications as Green Materials. Foods 2021; 10:981. [PMID: 33947093 PMCID: PMC8145534 DOI: 10.3390/foods10050981] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/21/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023] Open
Abstract
A great amount of biowastes, comprising byproducts and biomass wastes, is originated yearly from the agri-food industry. These biowastes are commonly rich in proteins and polysaccharides and are mainly discarded or used for animal feeding. As regulations aim to shift from a fossil-based to a bio-based circular economy model, biowastes are also being employed for producing bio-based materials. This may involve their use in high-value applications and therefore a remarkable revalorization of those resources. The present review summarizes the main sources of protein from biowastes and co-products of the agri-food industry (i.e., wheat gluten, potato, zein, soy, rapeseed, sunflower, protein, casein, whey, blood, gelatin, collagen, keratin, and algae protein concentrates), assessing the bioplastic application (i.e., food packaging and coating, controlled release of active agents, absorbent and superabsorbent materials, agriculture, and scaffolds) for which they have been more extensively produced. The most common wet and dry processes to produce protein-based materials are also described (i.e., compression molding, injection molding, extrusion, 3D-printing, casting, and electrospinning), as well as the main characterization techniques (i.e., mechanical and rheological properties, tensile strength tests, rheological tests, thermal characterization, and optical properties). In this sense, the strategy of producing materials from biowastes to be used in agricultural applications, which converge with the zero-waste approach, seems to be remarkably attractive from a sustainability prospect (including environmental, economic, and social angles). This approach allows envisioning a reduction of some of the impacts along the product life cycle, contributing to tackling the transition toward a circular economy.
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Affiliation(s)
| | | | - Carlos Bengoechea
- Departamento de Ingeniería Química, Escuela Politécnica Superior, 41011 Sevilla, Spain; (E.Á.-C.); (M.F.); (A.G.)
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