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Removal of heavy metal ions from wastewater using modified cornstalk cellulose-derived poly(amidoxime) ligand
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-07 DOI: 10.1016/j.carpta.2024.100633
Md Lutfor Rahman , Siti Aisyah Shamrih , Nurul Afifah Azlyzan , Mohd Sani Sarjadi , Sazmal Effendi Arsad , Shaheen M. Sarkar , Sandeep Kumar
The use of modified cellulose for the removal of heavy metal ions is a promising method to enhance the efficiency of metal ion extraction from water. In this study, cellulose was grafted with acrylonitrile to produce a polyacrylonitrile-grafted cellulose. This product was further converted into a poly(amidoxime) ligand through amidoximation. The structures of the cellulose, grafted cellulose, and poly(amidoxime) ligand were characterized using FT-IR, FE-SEM, and thermogravimetric analysis (TGA). A batch adsorption study was conducted to assess the polymer ligand's ability to adsorb heavy metal ions, including Cu²⁺, Fe²⁺, Co²⁺, Cr³⁺, and Ni²⁺. The poly(amidoxime) ligand demonstrated exceptional Cu²⁺ adsorption capacity, primarily due to the complexation of amidoxime functional groups, with a maximum adsorption capacity of 310 mg g⁻¹ at an optimal pH of 6. Adsorption behavior was found to be pH-dependent, with various metal concentrations tested at a constant pH of 6. The Cu²⁺ ions exhibited highest adsorption capacity, followed by Fe²⁺, Co²⁺, Cr³⁺, and Ni²⁺, with adsorption capacities of 280, 240, 220, and 205 mg g⁻¹, respectively. The adsorption isotherms were well described by the Freundlich model, showing a high correlation coefficient (R² > 0.99), indicating a heterogeneous adsorption surface capable of forming multiple layers on the polymer ligand. Additionally, the adsorption kinetics followed a pseudo-second-order model (R² > 0.997). This poly(amidoxime) ligand was able to remove 90–98 % of toxic metals from industrial wastewater, highlighting its potential for large-scale environmental applications. The development of poly(amidoxime) ligands from cellulosic materials offers a sustainable and eco-friendly approach to heavy metal ion extraction.
{"title":"Removal of heavy metal ions from wastewater using modified cornstalk cellulose-derived poly(amidoxime) ligand","authors":"Md Lutfor Rahman ,&nbsp;Siti Aisyah Shamrih ,&nbsp;Nurul Afifah Azlyzan ,&nbsp;Mohd Sani Sarjadi ,&nbsp;Sazmal Effendi Arsad ,&nbsp;Shaheen M. Sarkar ,&nbsp;Sandeep Kumar","doi":"10.1016/j.carpta.2024.100633","DOIUrl":"10.1016/j.carpta.2024.100633","url":null,"abstract":"<div><div>The use of modified cellulose for the removal of heavy metal ions is a promising method to enhance the efficiency of metal ion extraction from water. In this study, cellulose was grafted with acrylonitrile to produce a polyacrylonitrile-grafted cellulose. This product was further converted into a poly(amidoxime) ligand through amidoximation. The structures of the cellulose, grafted cellulose, and poly(amidoxime) ligand were characterized using FT-IR, FE-SEM, and thermogravimetric analysis (TGA). A batch adsorption study was conducted to assess the polymer ligand's ability to adsorb heavy metal ions, including Cu²⁺, Fe²⁺, Co²⁺, Cr³⁺, and Ni²⁺. The poly(amidoxime) ligand demonstrated exceptional Cu²⁺ adsorption capacity, primarily due to the complexation of amidoxime functional groups, with a maximum adsorption capacity of 310 mg g⁻¹ at an optimal pH of 6. Adsorption behavior was found to be pH-dependent, with various metal concentrations tested at a constant pH of 6. The Cu²⁺ ions exhibited highest adsorption capacity, followed by Fe²⁺, Co²⁺, Cr³⁺, and Ni²⁺, with adsorption capacities of 280, 240, 220, and 205 mg g⁻¹, respectively. The adsorption isotherms were well described by the Freundlich model, showing a high correlation coefficient (R² &gt; 0.99), indicating a heterogeneous adsorption surface capable of forming multiple layers on the polymer ligand. Additionally, the adsorption kinetics followed a pseudo-second-order model (R² &gt; 0.997). This poly(amidoxime) ligand was able to remove 90–98 % of toxic metals from industrial wastewater, highlighting its potential for large-scale environmental applications. The development of poly(amidoxime) ligands from cellulosic materials offers a sustainable and eco-friendly approach to heavy metal ion extraction.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"9 ","pages":"Article 100633"},"PeriodicalIF":6.2,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Living electronics in cellulose zoogleal mats
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-07 DOI: 10.1016/j.carpta.2024.100627
Panagiotis Mougkogiannis , Anna Nikolaidou , Andrew Adamatzky
The review starts by investigating the concepts that underpin the use of kombucha in electronic systems, such as its conducting properties, self-healing properties, and capacity to form long-lasting biofilms. The research explores the diverse uses of kombucha-based living electronics, including biosensors, biocomputing devices, energy harvesting systems, and flexible electronics. Proteinoids, a synthetic class of polypeptides, have attracted researchers’ interest because of their structural and functional analogies to natural proteins. This similarity offers numerous opportunities for their usage in diverse fields, such as the development of cutting-edge living electronic systems. This paper analyses the fundamental concepts of integrating proteinoids into living electrical systems, with a specific emphasis on their distinct structural and functional characteristics. The paper explores the possible uses of proteinoid-based electronics, including molecular switches, memory devices, and self-assembling nanostructures, emphasising their superiority to traditional electronic components. Nevertheless, the incorporation of kombucha and proteinoids into living electronics presents several difficulties. These technical challenges affect the production, durability, and expandability of these bio-hybrid systems. Furthermore, this article tackles concerns about biocompatibility, durability, and the necessity for standardised characterisation methodologies.
{"title":"Living electronics in cellulose zoogleal mats","authors":"Panagiotis Mougkogiannis ,&nbsp;Anna Nikolaidou ,&nbsp;Andrew Adamatzky","doi":"10.1016/j.carpta.2024.100627","DOIUrl":"10.1016/j.carpta.2024.100627","url":null,"abstract":"<div><div>The review starts by investigating the concepts that underpin the use of kombucha in electronic systems, such as its conducting properties, self-healing properties, and capacity to form long-lasting biofilms. The research explores the diverse uses of kombucha-based living electronics, including biosensors, biocomputing devices, energy harvesting systems, and flexible electronics. Proteinoids, a synthetic class of polypeptides, have attracted researchers’ interest because of their structural and functional analogies to natural proteins. This similarity offers numerous opportunities for their usage in diverse fields, such as the development of cutting-edge living electronic systems. This paper analyses the fundamental concepts of integrating proteinoids into living electrical systems, with a specific emphasis on their distinct structural and functional characteristics. The paper explores the possible uses of proteinoid-based electronics, including molecular switches, memory devices, and self-assembling nanostructures, emphasising their superiority to traditional electronic components. Nevertheless, the incorporation of kombucha and proteinoids into living electronics presents several difficulties. These technical challenges affect the production, durability, and expandability of these bio-hybrid systems. Furthermore, this article tackles concerns about biocompatibility, durability, and the necessity for standardised characterisation methodologies.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"9 ","pages":"Article 100627"},"PeriodicalIF":6.2,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing antioxidant and thermal stability in olive mill wastewater through Hydroxypropyl-β-Cyclodextrin complexation: A comprehensive study
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-05 DOI: 10.1016/j.carpta.2024.100631
Aysu Tolun , Zeynep Altintas
The study investigates the enhancement of thermal stability and antioxidant activity of olive mill wastewater (OMWW) by complexing it with hydroxypropyl-beta-cyclodextrin (HP-β-CD) in different molar ratios (1:1, 1:2, and 1:3). OMWW is rich in phenolic compounds with significant antioxidant properties but suffers from low bioavailability and thermal sensitivity. The inclusion complex formation was assessed using FT-IR, XRD, and DSC analyses. FT-IR results showed the disappearance of OH stretching vibrations in the 1:2 molar ratio complex, indicating successful interaction. XRD confirmed the absence of OMWW's characteristic peaks, and DSC revealed that the melting point of OMWW increased from 192.3 °C to 211.1 °C, 228.0 °C, and 224.7 °C for the 1:1, 1:2, and 1:3 ratios, respectively, demonstrating improved thermal stability. The 1:2 molar ratio complex exhibited the highest antioxidant activity and phenolic content. SEM and 1H NMR spectroscopy further validated the successful formation of the inclusion complex. The OMWW/HP-β-CD complex, especially at the 1:2 ratio, shows promise for use in pharmaceutical products and fortified foods due to its enhanced stability and antioxidant properties.
{"title":"Optimizing antioxidant and thermal stability in olive mill wastewater through Hydroxypropyl-β-Cyclodextrin complexation: A comprehensive study","authors":"Aysu Tolun ,&nbsp;Zeynep Altintas","doi":"10.1016/j.carpta.2024.100631","DOIUrl":"10.1016/j.carpta.2024.100631","url":null,"abstract":"<div><div>The study investigates the enhancement of thermal stability and antioxidant activity of olive mill wastewater (OMWW) by complexing it with hydroxypropyl-beta-cyclodextrin (HP-β-CD) in different molar ratios (1:1, 1:2, and 1:3). OMWW is rich in phenolic compounds with significant antioxidant properties but suffers from low bioavailability and thermal sensitivity. The inclusion complex formation was assessed using FT-IR, XRD, and DSC analyses. FT-IR results showed the disappearance of O<img>H stretching vibrations in the 1:2 molar ratio complex, indicating successful interaction. XRD confirmed the absence of OMWW's characteristic peaks, and DSC revealed that the melting point of OMWW increased from 192.3 °C to 211.1 °C, 228.0 °C, and 224.7 °C for the 1:1, 1:2, and 1:3 ratios, respectively, demonstrating improved thermal stability. The 1:2 molar ratio complex exhibited the highest antioxidant activity and phenolic content. SEM and <sup>1</sup>H NMR spectroscopy further validated the successful formation of the inclusion complex. The OMWW/HP-β-CD complex, especially at the 1:2 ratio, shows promise for use in pharmaceutical products and fortified foods due to its enhanced stability and antioxidant properties.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"9 ","pages":"Article 100631"},"PeriodicalIF":6.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bacterial cellulose hydrogel produced by Gluconacetobacter hansenii using sugarcane molasses as medium: Physicochemical characterization for wound healing applications
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-05 DOI: 10.1016/j.carpta.2024.100632
Rafaela Siqueira Ferraz de Carvalho , Layla Carvalho Mahnke , Sarah Brandão Palácio , Willams Teles Barbosa , Katharine Valeria Saraiva Hodel , Josiane Dantas Viana Barbosa , Francisco de Assis Dutra Melo , Marlus Chorilli , Andreia Bagliotti Meneguin , Flavia Cristina Morone Pinto , Marcos Antônio de Morais Jr , José Lamartine de Andrade Aguiar
Biopolymers, such as Bacterial Cellulose (BC) have attracted commercial interest especially due to their physicochemical properties and the potential applications. This work presents the BC physicochemical characterization obtained by Gluconacetobacter hansenii in a sugarcane molasses medium. The structural and morphological characteristics of BC evidenced a typical cellulose structure reported in previous research where BC was obtained by different strains and fermentation conditions. The properties of BC, considering the ideal parameters for applications, were analyzed using the following methods: tensile tests; water activity; swelling profile and moisture content; water vapor permeability and in vitro degradation analysis. The BC film was characterized by a high porosity (85.5 %); high tensile strength (46.2 MPa); low water activity (0.31 aw); high swelling index (59.5 %) and water swell ability (190 %). These properties make BC an excellent candidate for biomedical application, especially for dressing production, re-epithelialization and skin regeneration. The data obtained in this study is intended to support the use of sugarcane molasses, a pure substrate from a renewable and inexpensive source, as a potential substrate for the synthesis of BC with properties for application in medicine.
{"title":"Bacterial cellulose hydrogel produced by Gluconacetobacter hansenii using sugarcane molasses as medium: Physicochemical characterization for wound healing applications","authors":"Rafaela Siqueira Ferraz de Carvalho ,&nbsp;Layla Carvalho Mahnke ,&nbsp;Sarah Brandão Palácio ,&nbsp;Willams Teles Barbosa ,&nbsp;Katharine Valeria Saraiva Hodel ,&nbsp;Josiane Dantas Viana Barbosa ,&nbsp;Francisco de Assis Dutra Melo ,&nbsp;Marlus Chorilli ,&nbsp;Andreia Bagliotti Meneguin ,&nbsp;Flavia Cristina Morone Pinto ,&nbsp;Marcos Antônio de Morais Jr ,&nbsp;José Lamartine de Andrade Aguiar","doi":"10.1016/j.carpta.2024.100632","DOIUrl":"10.1016/j.carpta.2024.100632","url":null,"abstract":"<div><div>Biopolymers, such as Bacterial Cellulose (BC) have attracted commercial interest especially due to their physicochemical properties and the potential applications. This work presents the BC physicochemical characterization obtained by <em>Gluconacetobacter hansenii</em> in a sugarcane molasses medium. The structural and morphological characteristics of BC evidenced a typical cellulose structure reported in previous research where BC was obtained by different strains and fermentation conditions. The properties of BC, considering the ideal parameters for applications, were analyzed using the following methods: tensile tests; water activity; swelling profile and moisture content; water vapor permeability and <em>in vitro</em> degradation analysis. The BC film was characterized by a high porosity (85.5 %); high tensile strength (46.2 MPa); low water activity (0.31 aw); high swelling index (59.5 %) and water swell ability (190 %). These properties make BC an excellent candidate for biomedical application, especially for dressing production, re-epithelialization and skin regeneration. The data obtained in this study is intended to support the use of sugarcane molasses, a pure substrate from a renewable and inexpensive source, as a potential substrate for the synthesis of BC with properties for application in medicine.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"9 ","pages":"Article 100632"},"PeriodicalIF":6.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Closing the loop with pretreatment and black soldier fly technology for recycling lignocellulose-rich organic by-products: A progressive review
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-05 DOI: 10.1016/j.carpta.2024.100630
Kashif ur Rehman , Cornelia Schwennen , Christian Visscher , Madeleine Plötz , Nils Th. Grabowski , Mossammad U.C. Sultana , Karin Wiesotzki , Clemens Hollah , Kemal Aganovic , Volker Heinz
The rise of the global population and improving living standards have increased food demand, imposing significant pressure on agricultural systems. As a result, substantial quantities of organic by-products rich in lignocellulose, termed organic agricultural biomass (OAB), are produced. These materials, rich in cellulose, hemicellulose, and lignin, provide environmental and economic difficulties if not treated properly. Conventional animal feed cannot adequately digest OAB owing to its structural complexity, restricting its effectiveness. Pretreatment strategies have become vital for altering the lignocellulosic structure of OAB, improving enzymatic hydrolysis, and transforming complicated polysaccharides into fermentable sugars. These techniques-physical, chemical, physico-chemical, and biological enhance fibre degradation, promote nutrient extraction, and adhere to circular economy principles. Recently, black soldier fly larvae (BSFL, Hermetia illucens L.) have shown potential as a recycling agent, particularly within EU regulatory frameworks, for converting agri-food by-products into nutrient-rich feed for livestock. This research examines the integration of pretreatment techniques with BSFL technology to recycle lignocellulose-rich by-products, highlighting the creativity in merging these methods to enhance nutrient conversion. The results indicate a sustainable approach to waste valorisation, mitigating the environmental effects of lignocellulosic by-product management while providing economic advantages. This interdisciplinary approach shows potential for sustainable agriculture and bio-economies, enhancing resource recovery via nature-based, circular solutions. Future research should concentrate on pretreatment methods for various biomass compositions and developing BSFL-rearing substrates as a viable recycling agent.
{"title":"Closing the loop with pretreatment and black soldier fly technology for recycling lignocellulose-rich organic by-products: A progressive review","authors":"Kashif ur Rehman ,&nbsp;Cornelia Schwennen ,&nbsp;Christian Visscher ,&nbsp;Madeleine Plötz ,&nbsp;Nils Th. Grabowski ,&nbsp;Mossammad U.C. Sultana ,&nbsp;Karin Wiesotzki ,&nbsp;Clemens Hollah ,&nbsp;Kemal Aganovic ,&nbsp;Volker Heinz","doi":"10.1016/j.carpta.2024.100630","DOIUrl":"10.1016/j.carpta.2024.100630","url":null,"abstract":"<div><div>The rise of the global population and improving living standards have increased food demand, imposing significant pressure on agricultural systems. As a result, substantial quantities of organic by-products rich in lignocellulose, termed organic agricultural biomass (OAB), are produced. These materials, rich in cellulose, hemicellulose, and lignin, provide environmental and economic difficulties if not treated properly. Conventional animal feed cannot adequately digest OAB owing to its structural complexity, restricting its effectiveness. Pretreatment strategies have become vital for altering the lignocellulosic structure of OAB, improving enzymatic hydrolysis, and transforming complicated polysaccharides into fermentable sugars. These techniques-physical, chemical, physico-chemical, and biological enhance fibre degradation, promote nutrient extraction, and adhere to circular economy principles. Recently, black soldier fly larvae (BSFL, <em>Hermetia illucens</em> L.) have shown potential as a recycling agent, particularly within EU regulatory frameworks, for converting agri-food by-products into nutrient-rich feed for livestock. This research examines the integration of pretreatment techniques with BSFL technology to recycle lignocellulose-rich by-products, highlighting the creativity in merging these methods to enhance nutrient conversion. The results indicate a sustainable approach to waste valorisation, mitigating the environmental effects of lignocellulosic by-product management while providing economic advantages. This interdisciplinary approach shows potential for sustainable agriculture and bio-economies, enhancing resource recovery via nature-based, circular solutions. Future research should concentrate on pretreatment methods for various biomass compositions and developing BSFL-rearing substrates as a viable recycling agent.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"9 ","pages":"Article 100630"},"PeriodicalIF":6.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hemostatic efficacy evaluation and safety profile of a cellulose nanofiber mat
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-03 DOI: 10.1016/j.carpta.2024.100628
Enhui Lin , Osman Asila , Sangchul Rho , Ju Hong Park , Dong Soo Hwang
Although the hemostatically efficacious nature of cellulose nanofibers (CNFs) is well established, data regarding their hemostatic performance in large animal systems and safety toward human skin cells, which are critical factors for clinical translation, are lacking. This study evaluated the clinical potential of CNF-coated gauze by testing its hemostatic efficacy in rats, rabbits, and pigs, and assessing its safety in human primary cells through differential gene expression (DEG) analysis. In-vitro studies using rabbit blood revealed that the CNF-coated gauze exhibited a significantly lower blood clotting index (BCI) value than gauze coated with chitosan, a commonly used hemostatic agent, indicating superior blood clotting. In-vivo tests on bleeding-induced pig livers revealed that the CNF-coated gauze delivered a four-fold higher hemostatic success rate reduced bleeding volume compared to regular gauze. Moreover, a rat wound-healing model revealed improved healing with CNF-coated gauze. DEG analysis of human dermal fibroblast primary cells showed no statistically significant differences between the CNF and control groups, indicating its human safety. Overall, our results suggest that CNF-coated hemostatic gauze absorbs blood rapidly, delivers superior hemostatic performance compared to regular gauze, is safe from both histological and DEG perspectives, and is therefore suitable for use in healthcare and clinical settings.
{"title":"Hemostatic efficacy evaluation and safety profile of a cellulose nanofiber mat","authors":"Enhui Lin ,&nbsp;Osman Asila ,&nbsp;Sangchul Rho ,&nbsp;Ju Hong Park ,&nbsp;Dong Soo Hwang","doi":"10.1016/j.carpta.2024.100628","DOIUrl":"10.1016/j.carpta.2024.100628","url":null,"abstract":"<div><div>Although the hemostatically efficacious nature of cellulose nanofibers (CNFs) is well established, data regarding their hemostatic performance in large animal systems and safety toward human skin cells, which are critical factors for clinical translation, are lacking. This study evaluated the clinical potential of CNF-coated gauze by testing its hemostatic efficacy in rats, rabbits, and pigs, and assessing its safety in human primary cells through differential gene expression (DEG) analysis. <em>In-vitro</em> studies using rabbit blood revealed that the CNF-coated gauze exhibited a significantly lower blood clotting index (BCI) value than gauze coated with chitosan, a commonly used hemostatic agent, indicating superior blood clotting. <em>In-vivo</em> tests on bleeding-induced pig livers revealed that the CNF-coated gauze delivered a four-fold higher hemostatic success rate reduced bleeding volume compared to regular gauze. Moreover, a rat wound-healing model revealed improved healing with CNF-coated gauze. DEG analysis of human dermal fibroblast primary cells showed no statistically significant differences between the CNF and control groups, indicating its human safety. Overall, our results suggest that CNF-coated hemostatic gauze absorbs blood rapidly, delivers superior hemostatic performance compared to regular gauze, is safe from both histological and DEG perspectives, and is therefore suitable for use in healthcare and clinical settings.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"9 ","pages":"Article 100628"},"PeriodicalIF":6.2,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extraction and characterization of lignocellulosic fiber from Prosopis Juliflora bark: Effects of retting method, fiber particle size and alkali treatment cycle on cellulosic properties
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-01 DOI: 10.1016/j.carpta.2024.100626
Endalkachew Tsegaye Liku , Temesgen Debelo Desissa , Alemayehu Wakjira Huluka
The need to substitute synthetic fiber from petroleum precursor with natural fiber is becoming a priority in combating environmental and economic challenges. In this study, lignocellulosic fiber was extracted from the bark of an invasive plant of Prosopis Juliflora (PJ) using a modified dry retting method. The fiber was then chopped into three sizes, followed by two successive alkali treatments. The effects were then examined for their cellulosic properties. X-ray diffraction (XRD) results revealed that second-cycle alkali-treated coarse fibers (2TC) exhibited cellulose type-I and a crystallinity index (CI) of about 77 %. Moreover, thermogravimetric analysis (TGA) showed onset degradation and cellulose decomposition temperatures of 255 °C and 379 °C, respectively, while its cellulose content was around 50 %. Furthermore, the tensile strength test of the fiber resulted in about 12.48 ± 1.59 cN/Tex with a maximum force of 3.68 ± 0.56 N and elongation at a break of 5.2 % ± 1.85. The Fourier transform infrared spectra (FT-IR), scanning electron microscope (SEM) micrographs, and energy dispersive spectroscopy (EDS) ensured the removal of amorphous components after treatments. As a result of their improved cellulose properties, doubly alkalized coarse fibers are suitable feedstock for reinforcing polymer composites.
{"title":"Extraction and characterization of lignocellulosic fiber from Prosopis Juliflora bark: Effects of retting method, fiber particle size and alkali treatment cycle on cellulosic properties","authors":"Endalkachew Tsegaye Liku ,&nbsp;Temesgen Debelo Desissa ,&nbsp;Alemayehu Wakjira Huluka","doi":"10.1016/j.carpta.2024.100626","DOIUrl":"10.1016/j.carpta.2024.100626","url":null,"abstract":"<div><div>The need to substitute synthetic fiber from petroleum precursor with natural fiber is becoming a priority in combating environmental and economic challenges. In this study, lignocellulosic fiber was extracted from the bark of an invasive plant of <em>Prosopis Juliflora</em> (PJ) using a modified dry retting method. The fiber was then chopped into three sizes, followed by two successive alkali treatments. The effects were then examined for their cellulosic properties. X-ray diffraction (XRD) results revealed that second-cycle alkali-treated coarse fibers (2TC) exhibited cellulose type-I and a crystallinity index (CI) of about 77 %. Moreover, thermogravimetric analysis (TGA) showed onset degradation and cellulose decomposition temperatures of 255 °C and 379 °C, respectively, while its cellulose content was around 50 %. Furthermore, the tensile strength test of the fiber resulted in about 12.48 ± 1.59 cN/Tex with a maximum force of 3.68 ± 0.56 N and elongation at a break of 5.2 % ± 1.85. The Fourier transform infrared spectra (FT-IR), scanning electron microscope (SEM) micrographs, and energy dispersive spectroscopy (EDS) ensured the removal of amorphous components after treatments. As a result of their improved cellulose properties, doubly alkalized coarse fibers are suitable feedstock for reinforcing polymer composites.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"8 ","pages":"Article 100626"},"PeriodicalIF":6.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immediately injectable modified gelatin and hyaluronic acid-based hydrogel encapsulating nano-hydroxyapatite and human adipose-derived MSCs for use as a bone filler in situ therapy
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-01 DOI: 10.1016/j.carpta.2024.100625
Sang Jin Lee , Han-Jun Kim , Eun Ji Choi , Hyosung Kim , Donghyun Lee , Sang-Hyun An , Sung Jun Min , Wan-Kyu Ko , Jae Seo Lee , Haram Nah , Jae Beum Bang , Min Heo , Dong Nyoung Heo , Sun Hee Do , Il Keun Kwon
The use of hydrogels for tissue engineering and regenerative medicine has gained significant attention due to their biocompatibility, versatility, and ability to mimic the extracellular matrix of tissues. In this study, we investigated the potential of nano-hydroxyapatite (nHAp)-based hydrogels by using simply modified gelatin and hyaluronic acid for bone tissue engineering as means to use a 3D bioink with in situ manner. First, we confirmed the biocompatibility and cell proliferation rate of the hydrogels by encapsulating human adipose-derived stem cells (hASCs) within the hydrogel matrix. We observed that the addition of nHAp to the hydrogel matrix promoted cell proliferation and enhanced 3D cell organization. Next, we evaluated the osteogenic differentiation potential of hASCs-laden hydrogel through alkaline phosphatase (ALP) activity and alizarin red s staining. The results showed that the hydrogel-containing nHAp group had the highest ALP activity and mineralization, indicating its potential for inducing bone formation. In vivo studies using a rat subcutaneous implantation model and a rat calvarial defect model further confirmed the ability of nHAp-based hydrogels to promote bone formation. Overall, results demonstrate the potential of nHAp-based in situ hydrogels for bone tissue engineering, highlighting their potential as a promising 3D bioink material with enhanced bone regeneration.
{"title":"Immediately injectable modified gelatin and hyaluronic acid-based hydrogel encapsulating nano-hydroxyapatite and human adipose-derived MSCs for use as a bone filler in situ therapy","authors":"Sang Jin Lee ,&nbsp;Han-Jun Kim ,&nbsp;Eun Ji Choi ,&nbsp;Hyosung Kim ,&nbsp;Donghyun Lee ,&nbsp;Sang-Hyun An ,&nbsp;Sung Jun Min ,&nbsp;Wan-Kyu Ko ,&nbsp;Jae Seo Lee ,&nbsp;Haram Nah ,&nbsp;Jae Beum Bang ,&nbsp;Min Heo ,&nbsp;Dong Nyoung Heo ,&nbsp;Sun Hee Do ,&nbsp;Il Keun Kwon","doi":"10.1016/j.carpta.2024.100625","DOIUrl":"10.1016/j.carpta.2024.100625","url":null,"abstract":"<div><div>The use of hydrogels for tissue engineering and regenerative medicine has gained significant attention due to their biocompatibility, versatility, and ability to mimic the extracellular matrix of tissues. In this study, we investigated the potential of nano-hydroxyapatite (nHAp)-based hydrogels by using simply modified gelatin and hyaluronic acid for bone tissue engineering as means to use a 3D bioink with <em>in situ</em> manner. First, we confirmed the biocompatibility and cell proliferation rate of the hydrogels by encapsulating human adipose-derived stem cells (hASCs) within the hydrogel matrix. We observed that the addition of nHAp to the hydrogel matrix promoted cell proliferation and enhanced 3D cell organization. Next, we evaluated the osteogenic differentiation potential of hASCs-laden hydrogel through alkaline phosphatase (ALP) activity and alizarin red s staining. The results showed that the hydrogel-containing nHAp group had the highest ALP activity and mineralization, indicating its potential for inducing bone formation. <em>In vivo</em> studies using a rat subcutaneous implantation model and a rat calvarial defect model further confirmed the ability of nHAp-based hydrogels to promote bone formation. Overall, results demonstrate the potential of nHAp-based <em>in situ</em> hydrogels for bone tissue engineering, highlighting their potential as a promising 3D bioink material with enhanced bone regeneration.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"8 ","pages":"Article 100625"},"PeriodicalIF":6.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pectin from durian peel (Durio zibethinus Murr.) - a novel reducing and stabilizing agent: Physicochemical properties, green synthesis of silver nanoparticles and antimicrobial properties
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-01 DOI: 10.1016/j.carpta.2024.100623
Phuong Anh Thi Nguyen , Thanh Thuy Thi Nguyen , Dang Khoa Nguyen Vo
Sustainable agricultural development has become a long-term trend to protect environmental health, human well-being and enhance economic profitability all over the world, especially in developing countries like Vietnam. Thus, in order to elevate the value of Durio zibethinus Murr., this study aims to extract pectin from the peels waste and initially investigate its reduced capacity in the green approach for silver nanoparticle synthesis. The extraction yield was 11.21 % for crude pectin and 6.89 % after purification. Physiochemical characterization showed that the acidic isolated pectin was low methoxy pectin with 40 % DE and has a viscosity-molecular weight of 25.5 kDa with 60 % AUA. Spherical and stable pectin-based Ag nanoparticles prepared in alkaline medium exhibit a hydrodynamic diameter approximately 100 nm and a negative potential around -50 mV. In particular, green synthesized Ag nanoparticles with negative charge outer coating demonstrated their antibacterial ability against both gram (-) Escherichia coli and gram (+) Staphylococcus aureus at the MIC of 61.8 ppm. In consequence, durian pectin probably serves as a novel reducing and stabilizing agent for size-controlled nanoparticles synthesis.
{"title":"Pectin from durian peel (Durio zibethinus Murr.) - a novel reducing and stabilizing agent: Physicochemical properties, green synthesis of silver nanoparticles and antimicrobial properties","authors":"Phuong Anh Thi Nguyen ,&nbsp;Thanh Thuy Thi Nguyen ,&nbsp;Dang Khoa Nguyen Vo","doi":"10.1016/j.carpta.2024.100623","DOIUrl":"10.1016/j.carpta.2024.100623","url":null,"abstract":"<div><div>Sustainable agricultural development has become a long-term trend to protect environmental health, human well-being and enhance economic profitability all over the world, especially in developing countries like Vietnam. Thus, in order to elevate the value of <em>Durio zibethinus</em> Murr., this study aims to extract pectin from the peels waste and initially investigate its reduced capacity in the green approach for silver nanoparticle synthesis. The extraction yield was 11.21 % for crude pectin and 6.89 % after purification. Physiochemical characterization showed that the acidic isolated pectin was low methoxy pectin with 40 % DE and has a viscosity-molecular weight of 25.5 kDa with 60 % AUA. Spherical and stable pectin-based Ag nanoparticles prepared in alkaline medium exhibit a hydrodynamic diameter approximately 100 nm and a negative potential around -50 mV. In particular, green synthesized Ag nanoparticles with negative charge outer coating demonstrated their antibacterial ability against both gram (-) <em>Escherichia coli</em> and gram (+) <em>Staphylococcus aureus</em> at the MIC of 61.8 ppm. In consequence, durian pectin probably serves as a novel reducing and stabilizing agent for size-controlled nanoparticles synthesis.</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"8 ","pages":"Article 100623"},"PeriodicalIF":6.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing light energy harvesting and storage properties of cellulose acetate/azobenzene films through perylene photosensitization
IF 6.2 Q1 CHEMISTRY, APPLIED Pub Date : 2024-12-01 DOI: 10.1016/j.carpta.2024.100621
Pablo Castillo , Felipe Ramos , Constanza Kremer , Oscar Ramírez , Sebastian Bonardd , David Diaz Diaz , Angel Leiva , Cesar Saldias
This study presents a straightforward approach to enhancing the light energy capture and storage properties of cellulose acetate/azobenzene (CA/Azb) films through photosensitization with a perylene derivative (Py). The films' photoisomerization (trans-to-cis) and reverse isomerization (cis-to-trans) behaviors were evaluated under cold white LED light. Incorporating varying concentrations of perylene significantly improved the films' optical performance and energy storage capacity. Notably, the photoisomerization time of CA/Azb/Py films decreased by up to 30% compared to CA/Azb films. Furthermore, the energy storage half-life for films with the highest perylene content reached 70 minutes, substantially longer than that of CA/Azb films (24 minutes). Remarkably, the energy density of the film with the highest perylene content reached 240 J g⁻¹, which is more than 1.7 times higher than that of the CA/Azb film (138 J g⁻¹).
{"title":"Enhancing light energy harvesting and storage properties of cellulose acetate/azobenzene films through perylene photosensitization","authors":"Pablo Castillo ,&nbsp;Felipe Ramos ,&nbsp;Constanza Kremer ,&nbsp;Oscar Ramírez ,&nbsp;Sebastian Bonardd ,&nbsp;David Diaz Diaz ,&nbsp;Angel Leiva ,&nbsp;Cesar Saldias","doi":"10.1016/j.carpta.2024.100621","DOIUrl":"10.1016/j.carpta.2024.100621","url":null,"abstract":"<div><div>This study presents a straightforward approach to enhancing the light energy capture and storage properties of cellulose acetate/azobenzene (CA/Azb) films through photosensitization with a perylene derivative (Py). The films' photoisomerization (trans-to-cis) and reverse isomerization (cis-to-trans) behaviors were evaluated under cold white LED light. Incorporating varying concentrations of perylene significantly improved the films' optical performance and energy storage capacity. Notably, the photoisomerization time of CA/Azb/Py films decreased by up to 30% compared to CA/Azb films. Furthermore, the energy storage half-life for films with the highest perylene content reached 70 minutes, substantially longer than that of CA/Azb films (24 minutes). Remarkably, the energy density of the film with the highest perylene content reached 240 J g⁻¹, which is more than 1.7 times higher than that of the CA/Azb film (138 J g⁻¹).</div></div>","PeriodicalId":100213,"journal":{"name":"Carbohydrate Polymer Technologies and Applications","volume":"8 ","pages":"Article 100621"},"PeriodicalIF":6.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Carbohydrate Polymer Technologies and Applications
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