Fibers and Polymers最新文献

{"title":"Novel Polyvinyl Alcohol: Polyacrylic Acid Nanofiber Composite for Prolonged Release of Capecitabine: In Vitro and In Vivo Evaluations of Colon-Targeted Drug Delivery","authors":"Padmaja SidramGiram,&nbsp;Swami Shailesh,&nbsp;Omprakash Gadgeppa Bhusnure,&nbsp;Sachin Sivajirao Pandit,&nbsp;Selvaraja Elumalai,&nbsp;Ubaidulla Uthumansha,&nbsp;Jang Hyun Tae,&nbsp;Ganesh Mani","doi":"10.1007/s12221-024-00770-7","DOIUrl":"10.1007/s12221-024-00770-7","url":null,"abstract":"<div><p>Cancer is a leading cause of death in the world. Recent research studies have mainly focused on available treatments without problems. Recently, advances in nanotechnology have revolutionized the way that pharmaceuticals are given, reducing their negative effects. Electrospun nanofibers are unique among the colon-focused drug delivery technology in terms of their high biocompatibility and tunable drug-release profiles. The present study aimed to develop capecitabine (CPB)-loaded nanofibers (NFs) using a composite of polyvinyl alcohol (PVA) and polyacrylic acid (PAA) to achieve controlled release at colonic pH. A maximum drug-release rate of 91.92% was achieved with formulated nanofibers having a diameter of 591.38 nm. Results of in vitro release by NFs showed a burst release pattern at the initial stage followed by prolonged release for up to 20 h. In vitro cell cytotoxicity studies revealed high cytotoxicity of formulated NFs against HT-29 colon carcinoma. Formulated NFs also showed improved in vivo anti-cancer activity compared to free drug. Therapeutic efficacy of CPB NFs was superior compared to free drug in treating cancer in induced rats.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4665 - 4676"},"PeriodicalIF":2.2,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Covalent Immobilization of Cellulase Enzyme on Chitosan and Eudragit S-100 Biopolymers for Recovery and Reusability in Denim Fading Application","authors":"Amit Madhu,&nbsp;Jadunandan Chakraborty","doi":"10.1007/s12221-024-00783-2","DOIUrl":"10.1007/s12221-024-00783-2","url":null,"abstract":"<div><p>The cellulase enzyme has significant potential for applications in textile chemical processing, offering an environmentally friendly alternative to traditional chemical methods. In conventional enzymatic treatments, the enzymes act as biocatalysts and are typically discarded as effluent after completing their function. However, the single-use nature, high production costs, and limited biological activity of cellulase enzymes hinder their widespread commercial use in the textile industry. This study focuses on the immobilization of a commercial cellulase enzyme onto two distinct reversible soluble–insoluble polymers Chitosan and Eudragit S-100 for the recovery and reusability. Chitosan and Eudragit were chosen as support materials due to their pH-dependent soluble–insoluble properties. These properties allow them to act as homogeneous catalysts in their soluble phase during application (since textile materials are heterogeneous) and enable easy recovery in their insoluble phase for subsequent reuse. The immobilization process was optimized to achieve maximum enzyme activity with ideal enzyme loading percentages. After immobilization on chitosan, the cellulase retained 92% of its initial activity with a loading efficiency of 73.7%, while on Eudragit, it maintained 86.5% activity with a loading efficiency of 75.6%. Fourier-transform infrared spectroscopy (FTIR) was employed to confirm the successful attachment of the cellulase enzyme to the polymers. The immobilized cellulase demonstrated equivalent fading effects compared to the native cellulase in terms of color depth (K/S value) and color metrics (L*, a*, b*), while also reducing physical damage and back-staining—common issues in the traditional denim fading process. Scanning electron microscopy (SEM) and back-staining analyses of the denim samples provided further evidence of these benefits. Moreover, the immobilized cellulase maintained approximately 50% of its activity even after recovery from five denim washing cycles, showcasing the potential for reuse across multiple applications, particularly in textile processing. Thus, cellulase immobilized on chitosan and Eudragit S-100 represents a promising solution for the sustainable use of enzymes in the textile industry.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4557 - 4573"},"PeriodicalIF":2.2,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and Mechanical Properties of Flax/Basalt Fibers-Reinforced Polypropylene Thermoplastic Composites Hybridized at the Yarn Level","authors":"Weiye Li,&nbsp;Xingzu Zhao,&nbsp;Ying Huang,&nbsp;Yiwei Ouyang,&nbsp;Yang Liu","doi":"10.1007/s12221-024-00782-3","DOIUrl":"10.1007/s12221-024-00782-3","url":null,"abstract":"<div><p>The natural fibers- and synthetic fibers-reinforced polymer hybrid composites have the advantages of low economical costs, good mechanical properties, low hygroscopicity and environmental sustainability. In this work, the flax fibers (F), basalt fibers (B) and polypropylene long fibers (PP) were used to prepare the wrapped yarns with hybridizing on yarn level. The polypropylene was a thermoplastic synthetic resin with excellent properties and low melting point. The wrapped yarns and PP yarns were further manufactured on the unidirectional fabrics by three weaving methods, which were laminated and hot pressed to prepare the hybrid composites. The effects of weaving methods, PP content and basalt fibers content in wrapped yarns on the mechanical properties of composites were investigated. It was found that the two PP yarns in the core of the hybrid-wrapped yarns helped the composites to attain good mechanical properties. As compared to 3F2PP composites, the tensile strength and flexural strength of 1F2B2PP hybrid composites were increased to 213.2% and 32.4%, respectively. As the basalt fiber content increased, the damage degree of the F/B composites reduced and the composites showed good impact energy absorption. The impact damage modes of the all F/B composites were mainly circular pit and band-shaped failure. Furthermore, the multi-scale finite element models of the hybrid composites were established to predict and simulate the mechanical properties.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4909 - 4919"},"PeriodicalIF":2.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lignin–Poly(vinyl alcohol) Compound from Acetalization Synthesis as a Reinforcing Filler for High-Performance Gel-Spun Fibers","authors":"Lei Zhang,&nbsp;Lianjie Duan,&nbsp;Xiaorui Sun,&nbsp;Xian Li,&nbsp;Chunhong Lu","doi":"10.1007/s12221-024-00778-z","DOIUrl":"10.1007/s12221-024-00778-z","url":null,"abstract":"<div><p>As a natural macromolecular material, lignin (L) can be used as a filler to enhance the mechanical properties of poly (vinyl alcohol) (PVA). However, the blending system of L/PVA suffers from the poor compatibility of hydrophobic lignin and hydrophilic PVA. To address this issue, lignin was combined with PVA by acetalization synthesis at different reaction conditions. The obtained lignin–PVA (L–P) compounds were incorporated into 5% L/PVA gel-spun fibers as a second filler to enhance the filler/matrix compatibility. 5% L/PVA fiber reinforced by 5% L–P compound obtained with L/PVA mass ratio of 1:2, reaction temperature of 150 ℃, and reaction time 12 h exhibits the best mechanical properties. The optimal tensile strength is 925.23 MPa, Young’s modulus is 26.89 GPa, and toughness is 16.45 J/g. This work offers promising approach in developing compatible lignin/synthetic polymer systems for more sustainable high-performance fibers in the industrial or technical textile field.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4619 - 4631"},"PeriodicalIF":2.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fasten UV-Resistant Cotton Textiles by Modification with Mixed Metal–Ce–MOF","authors":"Reda M. Abdelhameed,&nbsp;Mahmoud El-Shahat,&nbsp;Elena Ivanova,&nbsp;Mihail Mihaylov,&nbsp;Konstantin Hadjiivanov,&nbsp;Hossam E. Emam","doi":"10.1007/s12221-024-00766-3","DOIUrl":"10.1007/s12221-024-00766-3","url":null,"abstract":"<div><p>Nowadays, manufacturing of ultraviolet (UV) protective textiles is quite interesting for the outdoor workers to protect their bodies from harmful radiation. Herein, for the first time, durable UV-protective cotton textiles were produced by modification with the mixed metal–Ce organic framework. Cotton was first interacted with 1,2,4-tricarboxybenzene-2,4-anhydride through benzylation reaction. The benzylated cotton (BTC–C = O@Cotton) was then reacted with two metal salts including Cerium salt to obtain Ce–M–BTC–C = O@Cotton. The estimated contents of Ce and the mixed metal within Ce–M–BTC–C = O@Cotton were 3.3% and 0.4%, respectively. The color of cotton was turned to bluish-green color, greenish-yellow color and reddish color after incorporation with Ce–Cu–BTC, Ce–Ni–BTC and Ce–Co–BTC, respectively. The all-modified fabrics exhibited UV-blocking character from good to excellent, depending on the inserted mixed metal. The measured UV-protection factor (UPF) was 34.7 (very good) for Ce–Cu–BTC–C = O@Cotton, 43.1 (excellent) for Ce–Ni–BTC–C = O@Cotton, 26.4 (good) for Ce–Zn–BTC–C = O@Cotton, and 33.3 (very good) for Ce–Co–BTC–C = O@Cotton. After 5 washing cycles, Ce–Ni–BTC–C = O@Cotton and Ce–Co–BTC–C = O@Cotton showed good UV protection. The mechanical properties of cotton textiles were not significantly affected after modification with Ce–M–BTC.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4651 - 4663"},"PeriodicalIF":2.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12221-024-00766-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Influence of Alkaline Treatment on Delamination resistance of Woven Flax Fiber-Reinforced Epoxy Composite Laminates","authors":"Osama M. Mabrouk,&nbsp;Wael Khair-Eldeen,&nbsp;Ahmed H. Hassanin,&nbsp;Mohsen A. Hassan","doi":"10.1007/s12221-024-00747-6","DOIUrl":"10.1007/s12221-024-00747-6","url":null,"abstract":"<div><p>Delamination is one of the most typical failure modes of fiber-reinforced polymer composite laminates. Thus, investigating and improving the delamination behavior of these laminates are of vital importance. The present research discovers and investigates the role of the alkaline treatment of twill-woven flax fabric on the delamination resistance of flax fiber-reinforced epoxy composite laminates. Initially, flax fibers were treated with different sodium hydroxide solution concentrations (2–5–10%) for 2 h. The influence of alkaline treatment on fiber characteristics was evaluated by performing a single-yarn tensile test, scanning electron microscopy, and Fourier transform infrared spectroscopy analysis for treated and untreated flax fibers. The appropriate treatment condition was selected based on the properties obtained from the tests conducted on the fiber level. Subsequently, to discover the role of alkaline treatment on delamination resistance, flax fabric was treated with the selected treatment condition for further composite fabrication. The treated and untreated flax fiber-reinforced epoxy composites were fabricated using a hand lay-up technique followed by hot compression. Interlaminar shear strength, double cantilever beam, and end-notch flexural tests were carried out for treated and untreated composites to determine the effect of alkaline treatment on the delamination resistance. The results proved that the alkaline treatment of flax fabric significantly improved the delamination resistance of treated composite laminates compared to untreated ones. The interlaminar shear strength, the mode I interlaminar fracture toughness (propagation), and mode II interlaminar fracture toughness were improved by 27.3%, 14%, and 24.9%, respectively, for treated composite laminates compared to untreated ones.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4859 - 4872"},"PeriodicalIF":2.2,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12221-024-00747-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Printing with Natural Dye Extract from Japanese Knotweed Leaves","authors":"Maja Klančnik","doi":"10.1007/s12221-024-00760-9","DOIUrl":"10.1007/s12221-024-00760-9","url":null,"abstract":"<div><p>Invasive alien plants are detrimentally displacing native plant species and pose a challenge in terms of how their overgrowth can be utilized effectively. In our study, the leaves of one of the world’s worst invasive species, Japanese knotweed, were used to produce a green natural dye. This dye was screen-printed onto various substrates, including cotton and polyester fabrics, commercial cellulose papers, and innovative papers made from the stems of Japanese knotweed. The printed substrates were evaluated using color measurements and fastness properties. The aim of the study was also to investigate the influence of additives in the printing inks, such as sodium carbonate, citric acid, copper and aluminum sulfates, on the color and fastness properties of the prints. The colors of the prints obtained varied, ranging from primarily yellowish-green to brownish-yellow with the addition of citric acid, orange-brown with sodium carbonate, orange-yellow with aluminum sulfate, and brown with copper sulfate. The prints had excellent fastness to dry rubbing and moderate fastness to light. The prints of lower and medium dye concentrations on fabrics had very good fastness to wet rubbing and wet ironing, and on cotton even good fastness to washing. The additives in the printing inks, such as sodium carbonate and metal sulfates, reduced the abrasion resistance of the prints on paper and the wet fastness of the prints on fabrics, but only the metal sulfates had a positive effect on the light fastness of the prints.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4771 - 4785"},"PeriodicalIF":2.2,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12221-024-00760-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Barley Straw Cellulose Fiber Isolation Using Pressurized Aqueous Ethanol, Ultrasound, and Bleaching Processes","authors":"Zhengjie Liu,&nbsp;Marleny D. A. Saldaña","doi":"10.1007/s12221-024-00767-2","DOIUrl":"10.1007/s12221-024-00767-2","url":null,"abstract":"<div><p>The main objectives of this study were to determine the optimum conditions of ultrasound (US) treatment to remove non-cellulosic biomass from barley straw residues, evaluate the effect of US treatment on the characteristics of acidified sodium chlorite (ASC)- or alkaline hydrogen peroxide (AHP)-bleached cellulose fibers, and compare the characteristics of cellulose fibers obtained after AHP and ASC bleaching. First, barley straw was treated by pressurized aqueous ethanol (PAE), then US treatment (400–1200 W/20 kHz/10–40 min) and ASC (1.7%/75 °C/2–6 h) or AHP bleaching (20%/75 °C/2–6 h) were performed to obtain cellulose fibers. Chemical composition, color, crystallinity, changes of functional groups, and morphology of cellulose fibers obtained were determined. The PAE treatment at 200 °C and 50 bar using 20% ethanol followed by US treatment at 1200 W/40 min removed most of the hemicellulose (92.9 <span>(pm)</span> 0.1%) and half of the initial lignin content, resulting in a cellulose-rich residue. Then, 99.1 <span>(pm)</span> 1.1 of hemicellulose and 86.5 <span>(pm)</span> 0.6% of lignin were removed after bleaching for 6 h. The highest purity of the barley straw cellulose fiber was 91.1 <span>(pm)</span> 2.3%, obtained after PAE + US + AHP bleaching for 6 h. At this optimum condition, the resultant cellulose fibers had crystallinity index of 38.9% without changing cellulose I structure. Morphology images revealed that the US treatment reduced the diameters of cellulose fibers to 3.54 and 4.42 <span>(upmu)</span>m after PAE + US + ASC and PAE + US + AHP bleaching for 6 h, respectively.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4601 - 4618"},"PeriodicalIF":2.2,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-friendly Dyeing of Polyester Fabric with Natural Madder Dye Using Supercritical Carbon Dioxide","authors":"Semiha Eren,&nbsp;Aminoddin Haji,&nbsp;Merve Öztürk,&nbsp;İdil Yiğit,&nbsp;Hüseyin Aksel Eren","doi":"10.1007/s12221-024-00774-3","DOIUrl":"10.1007/s12221-024-00774-3","url":null,"abstract":"<div><p>The replacement of water with supercritical carbon dioxide (scCO₂) as a solvent in dyeing textiles is an emerging technology that allows sustainable dyeing by minimizing energy and chemical usage. In this study, scCO₂ dyeing of polyester fabric using madder as a natural dye was investigated and optimized without the use of any other chemicals. Response surface methodology and Box–Behnken design were utilized to design the experiments and optimize the effects of dyeing temperature, pressure, and time on the color strength of the dyed fabrics. According to the experimental design, a set of 15 dyeing trials were carried out, and the color coordinates and color strengths of the samples were measured. Among several models, the quadratic model exhibited the best fit to the experimental data, while temperature had the most significant influence on color strength. According to the established model, the optimal conditions were suggested as 118 °C, 20 MPa, and 73 min. The dyed fabric exhibited good washing and rubbing durability properties because the dye successfully diffused into the fabric. This offers a promising alternative to conventional high-temperature, high-chemical polyester dyeing methods.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4795 - 4806"},"PeriodicalIF":2.2,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-Velocity Impact Damage Assessment of Aluminum-Honeycomb-Cored Banana-Fiber-Reinforced Composite Structures Under Elevated Temperatures","authors":"S. Vignesh,&nbsp;D. Muniraj,&nbsp;M. Varsha,&nbsp;V. M. Sreehari","doi":"10.1007/s12221-024-00768-1","DOIUrl":"10.1007/s12221-024-00768-1","url":null,"abstract":"<div><p>The impact damage of honeycomb sandwich structures with banana-fiber-reinforced polymer (BFRP) composite faceplates under high-velocity impacts at elevated temperatures is evaluated in present experimental study. BFRP composites were manufactured using vacuum-assisted resin transfer method. The high-velocity impact test was conducted using single-stage gas gun which shows sandwich structures with BFRP faceplates have higher energy absorption than the BFRP plates alone. It was observed that the BFRP composite plate perforates at 65.22 m/s, whereas the top faceplate of the BFRP sandwich structure perforates at 120 m/s. The gas gun with thermal setup was employed to investigate the high-velocity impact at higher temperatures. The matrix of the composite plays a crucial role when impacting at high temperature. When compared to the impact at 70 °C and 150 °C, the composite shows high-energy absorption at 110 °C. The results obtained in the present study throws light on the crashworthiness aspects of BFRP composites and sandwich structures with BFRP faceplates at room and elevated temperature under high-velocity impact loads.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"25 12","pages":"4899 - 4907"},"PeriodicalIF":2.2,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}