Article
Biochemistry & Molecular Biology
Emiliano Bedini, Elisabetta Cassese, Antonella D'Agostino, Marcella Cammarota, Maria Assunta Frezza, Maria Lepore, Marianna Portaccio, Chiara Schiraldi, Annalisa La Gatta
Summary: A new solid-state reaction method for self-esterifying hyaluronan has been developed, leading to products that gradually release hyaluronan for more effective tissue repair. This method is more efficient and avoids side reactions compared to traditional methods, and allows for the tuning of the released biopolymer's molecular weight.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Jiaxian Qiu, Yingrui Bai, Jinsheng Sun, Liyao Dai, Shaofei Lei, Fan Liu
Summary: The study focused on the synthesis method and performance characteristics of an oil-based gel-plugging agent with high structural strength and strong thermal stability, demonstrating its excellent gelling performance and high bearing capacity.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Applied
Zheng Kai, Pengfei Shan, Hongjin Wei, Yuxi Qi, Xuehao Wen, Ge Xin, Jiabin Jiang, Ming Zhang, Zhihui Li, Zhongyu Li
Summary: The driving force of material research is to pursue high performance and solve the dilemma of existing materials. A new crosslinking method using commercialized dibromide as a crosslinker and 1,1,3,3-tetramethylguanidine (TMG) as an esterification promoter is proposed in this study. This method reduces the content of carboxyl groups while realizing the crosslinking of waterborne polyurethane (WPU) films, resulting in improved waterproof and mechanical properties.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Polymer Science
Benben Zhang, Zeyu Ye, Min Qin, Qingqing Wang, Yijun Du, Chenze Qi, Linjun Shao
Summary: A simple and green chemical modification method combined with electrospinning technique was used to incorporate palladium active species into crosslinked polystyrene nanofibers, resulting in an efficient and stable heterogeneous palladium catalyst (Pd@CPS). The Pd@CPS catalyst exhibited high catalytic activities and recyclabilities for Suzuki and Heck reactions of aromatic iodides, with coupling yields exceeding 88%. The ultrafine fiber structure and embedment of palladium active species inside the nanofibers contributed to the high activities and stabilities of the prepared Pd@CPS catalyst.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
Fan Wang, Lei Wang, Fangfang Shen, Donghai Wang, Wenhao Shen
Summary: This study presents a novel ionic soft actuator using biofriendly microfibrillated cellulose (MFC) and PEDOT:PSS, which exhibits low actuation voltage, large displacement, wide driving frequency, and excellent durability. The actuator's performance can be attributed to the strong ionic interactions between MFC fibers and the ionic liquid (IL). Furthermore, a helical design of the MFC-IL actuator is demonstrated, showing controllable radial displacements by adjusting the applied frequency and voltage.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Roqia Ashraf, Tariq Maqbool, Mushtaq A. Beigh, Arvind H. Jadhav, Hasham S. Sofi, Faheem A. Sheikh
Summary: The study focused on fabricating nanofibers incorporated with TiO2 and Ag NPs, showing good antibacterial activity and biocompatibility. The results indicate a promising potential for future bone tissue engineering materials.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Polymer Science
Emanuele Mauri, Sara Maria Giannitelli, Marcella Trombetta, Alberto Rainer
Summary: Nanogels offer an innovative platform for tunable drug release and targeted therapy in biomedical applications, with researchers focusing on improving design by exploring chemical reactions, physical interactions, and engineered devices. The review highlights the current techniques such as physico-chemical methodologies, microfluidics, and 3D printing in nanogel design, emphasizing the potential for controlled polymerization, interfacial reactions, and other strategies to offer new solutions for critical healthcare scenarios.
Article
Polymer Science
Subinoy Jana, Jagabandhu Ray, Barun Mondal, Santu Kumar Samanta, Tridib Tripathy
Summary: In this study, a pine apple leaf fiber-cl-poly(acrylic acid-co-2-dimethyl amino ethyl acrylate) hydrogel was prepared and used as an adsorbent for dye removal from aqueous solutions. The hydrogel exhibited strong water swelling characteristics and faster deswelling properties. The adsorption of methyl violet by the hydrogel followed pseudo second order kinetics and showed high removal efficiency of 98.23% under optimum conditions.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Yijun Du, Linjun Shao, Chenze Qi
Summary: A fibrous solid acid catalyst was developed for efficient and green production of biodiesel, with optimized esterification conversion up to 92% through controlling the cross-linking and sulfonation degrees and reaction conditions. The fibrous structure of the catalyst allows for easy separation and reuse.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Chemistry, Applied
Feng Cao, Shengmin Lu, Lu Wang, Meiyu Zheng, Siew Young Quek
Summary: Native starches have low solubility and stability, which can be improved through modifications. Porous starch, as a modified version, has enhanced adsorptive efficiency and solubility compared to native starch. However, it also has drawbacks such as weak mechanical strength and low thermal resistance. Modified porous starches have been developed to address these issues and show improved adsorption capacity and stability. Different modification methods can be used to prepare and characterize modified porous starch, which can be utilized as efficient adsorbents and encapsulants in various fields.
Article
Chemistry, Physical
Md Mostafa, Dena Mae Agra-Kooijman, Kelum Perera, Alex Adaka, John L. West, Antal Jakli
Summary: This paper investigates cholesteric liquid crystals (CLCs) dispersed in commercial water-based latex varnishes coated on fibers and fabrics. The CLC-latex coatings exhibit bright, stable colors that change with temperature. The optical and stability properties of CLC-latex coated polyester fibers and fabrics are compared with previously reported LC materials. It is found that the enhanced brightness of the latex coated materials is due to the deformation of phase-separated CLC droplets during water evaporation. These CLC-latex coatings are durable, environmentally friendly, inexpensive, and easy to apply on fibers and fabrics due to the stability of the commercial latex varnishes to UV irradiation and water exposure. The resulting smart textiles could have various applications in biosensing, medical, and decorative fields.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2023)
Review
Polymer Science
Athira John, Klementina Pusnik Cresnar, Dimitrios N. Bikiaris, Lidija Fras Zemljic
Summary: Due to increasing consumer demand, the food packaging industry is opting for packaging materials with active functions. Active compounds are added as coatings to the base packaging material for maintaining physicochemical properties and enhancing efficiency. Colloidal systems, specifically colloidal dispersions, are potential candidates for active coatings due to their controlled release and uniform distribution. This review focuses on analyzing the advantages of using natural bio-based substances and packaging materials like PLA, considering consumer awareness and environmental concerns. It also briefly discusses the antiviral concept through surface application, addressing the current pandemic crisis and cross-infection prevention.
Article
Engineering, Chemical
Wang Han, Zhao-Xu Wang, Ming-Jie Yin, Wen-Hai Zhang, Cheng-Gang Jin, Naixin Wang, Quan-Fu An
Summary: In this study, an intensified hydrogen-bonding complexed polymer nanoparticles (iHCPN) membrane was developed to address the need for a highly acid-resistant membrane in long-term esterification reactions. The results showed that the iHCPN membrane exhibited excellent stability and performance in the dehydration process, making it suitable for various synthesis systems.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Mechanical
Dichu Xu, Terry Harvey, Janire Martinez, Eider Begiristain, Cristina Dominguez-Trujillo, Laura Sanchez-Abella, Martin Browne, Richard B. Cook
Summary: Hydrophilic hydrogel coatings can improve the tribological and antifouling properties of biomedical device surfaces. The effect of crosslinking on the ability of hydrogels to form coatings on XLPE substrates and the mechanics and tribological performance of the coated substrates are not fully understood. This study deposited PEG hydrogels of different crosslinking levels onto XLPE substrates and assessed their wear performance and friction evolution. The 10% cross-linker hydrogel coating exhibited the lowest friction and wear among all the coatings tested.
Article
Biochemistry & Molecular Biology
Basheer Aaliya, Kappat Valiyapeediyekkal Sunooj, Neethu Elizabeth John, Muhammed Navaf, Plachikkattu Parambil Akhila, Cherakkathodi Sudheesh, Sarasan Sabu, Abhilash Sasidharan, Shabir Ahmad Mir, Johnsy George
Summary: This study investigates the effects of chemical modifications such as oxidation, esterification, and crosslinking alone or in combination with microwave irradiation on a non-conventional starch derived from matured talipot palm trunk. The modifications significantly alter the morphological, crystalline, pasting, and rheological properties as well as the digestibility of talipot starch. Microwave irradiation before the chemical modifications has a significant impact on the swelling and solubility of the starch. The retrogradation tendency of talipot starch is reduced by microwave irradiation, making it suitable for frozen foods. The resistant starch content is greatly improved in all dual-modified talipot starches, with the highest content observed in microwave irradiated esterified uncooked talipot starch.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Applied
Razieh Aladpoosh, Majid Montazer
Summary: In this study, cotton fabric was functionalized with a hybrid coating of 2D Mg-Al LDH and SA through urea hydrolysis method. The resulting superhydrophobic surface structure, inspired by taro leaf structure, exhibited efficient oil/water separation performance and good stain resistance even after multiple washes. Additionally, the treated cotton showed excellent physico-mechanical properties.
CARBOHYDRATE POLYMERS
(2022)
Article
Materials Science, Textiles
Reihane Rezaee, Majid Montazer, Ali Mianehro, Mahnaz Mahmoudirad
Summary: Enhancing the effectiveness of curative herbal extracts through novel drug delivery systems is a current research focus. Zr-MOF was synthesized into wool fabric, resulting in improved wash durability and increased absorption capacity. After loading SO and CO extracts, the fabrics exhibited 100% antibacterial activity, with differences in biocompatibility with human skin.
FIBERS AND POLYMERS
(2022)
Article
Materials Science, Textiles
Vahid Shakeri Siavashani, Gursoy Nevin, Majid Montazer, Pelin Altay
Summary: This research introduces a method for fabricating a stretchable highly conductive cotton/lycra knitted fabric, enhancing conductivity through surface treatment and coating with different chemicals. Further analysis confirmed the superiority of the coating layer and showed penetration of silver particles inside fibers, leading to improved adhesion and stability of the coating.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Chemistry, Physical
Vahid Babaahmadi, Majid Montazer
Summary: The study presents a novel method to produce an efficient rGO-Sn(2+)doped-SnO2-Ag ternary nanocomposite on PET fabric through in-situ low-temperature redox reactions, demonstrating strong photocatalytic activity under daylight, especially enhanced by the presence of rGO and Ag. The sample with 10% Ag showed the most satisfactory photocatalytic activity, indicating great potential for visible light photocatalyst nanostructure production.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Food Science & Technology
Mohammad Reza Nematollahi, Majid Montazer, Ali Mianehro
Summary: A facile industrially applicable method is introduced for preparation of starch-copper ferrite hydrogel on cotton fabric, leading to the successful synthesis of a nanocomposite with magnetic properties and improved absorption capacity through optimization and characterization.
Article
Materials Science, Textiles
Ali Sadeghianmaryan, Dara Zarbaf, Majid Montazer, Mahnaz MahmoudiRad
Summary: This study presents a green and simple method for synthesizing clay/silver nanocomposite on denim fabric that can instantly discolor the garment and exhibit antibacterial effects, with results confirming dye removal and antibacterial properties of the synthesized material.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Engineering, Environmental
Esfandiar Pakdel, Wanjie Xie, Jinfeng Wang, Sima Kashi, Julie Sharp, Qian Zhang, Russell J. Varley, Lu Sun, Xungai Wang
Summary: This study presents a new approach to imparting superhydrophobicity, UV protection, and personal thermal management functionalities to cotton fabrics using the photothermal effect. By modifying the fabric surface with coatings containing natural melanin (NM) particles and fluorine-free polydimethylsiloxane (PDMS) polymer, the fabrics exhibited excellent superhydrophobicity, rapid heating effect, and high UV protection. The NM-coated fabrics also showed high durability against abrasion, washing, and UV irradiation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Esfandiar Pakdel, Walid A. Daoud, Russell J. Varley, Xungai Wang
Summary: This study developed wool fabrics with antibacterial and photocatalytic self-cleaning functionalities. The effects of light source type and wavelength range on the self-cleaning property were investigated. The results showed that filtered simulated sunlight was the most effective light source for inducing self-cleaning in wool, while silver and platinum coatings exhibited bactericidal effects.
Article
Engineering, Electrical & Electronic
Jiahui Chen, Mengyuan Xu, Esfandiar Pakdel, Weibing Zhong, Xiufang Li, Lu Sun, Dong Wang
Summary: Twisted and coiled synthetic fibers show promise for energy conversion due to their flexibility, lightweight, and wearability. Fabricating actuators by inserting twists into polyamide 6 (PA6) fibers and yarns revealed different actuation properties, with potential applications in small spring-like robots, smart curtains, and infrared-sensitive functional gloves.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Review
Materials Science, Paper & Wood
Wenli Bai, Esfandiar Pakdel, Quanxiang Li, Jinfeng Wang, Wenyang Tang, Bin Tang, Xungai Wang
Summary: Cellulose is a sustainable and abundant biopolymer that can be used in developing fibre-reinforced polymeric composites. Inverse gas chromatography (IGC) is a successful technique for characterising the surface activity of cellulose-based fillers and predicting the behaviour of final products.
Article
Nanoscience & Nanotechnology
Esfandiar Pakdel, Julie Sharp, Sima Kashi, Wenli Bai, Mazeyar Parvinzadeh Gashti, Xungai Wang
Summary: Cotton fabrics with superhydrophobic, antibacterial, UV protection, and photothermal properties were developed using Ag/PDMS coatings. The relationship between the fabrics' superhydrophobicity and antibacterial activity against E. coli bacteria was studied, along with the UV protection performance of Ag/PDMS coatings. The content of Ag NPs and PDMS played critical roles in determining the water contact angle on modified fabrics, and increasing the content of Ag NPs boosted the UV protection level of fabrics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Textiles
Qiming Wang, Wenli Bai, Xi Lu, Jinfeng Wang, Esfandiar Pakdel, Zhicai Yu, Yongming Cui, Qingtao Liu
Summary: Photocatalytic filter is crucial for VOCs removal, and ensuring the long-term durability is essential for their lifespan in industrial application. However, the stability of organic supporting materials has not been considered. In this study, TiO2 nanoparticles were successfully immobilized on a PAN nonwoven using a solvent swelling method and thermal oxidation treatment. The resulting thermal-oxidized TiO2@PAN nonwoven showed high photocatalytic efficiencies and improved thermal stability compared to the TiO2@PAN nonwoven. These findings contribute to the development of PAN-based nonwoven filters for more efficient and stable VOCs removal.
JOURNAL OF THE TEXTILE INSTITUTE
(2023)
Article
Materials Science, Multidisciplinary
Esfandiar Pakdel, Xungai Wang
Summary: Developing thermoregulating textiles based on passive radiative cooling strategies is an emerging means of providing localised thermoregulation and reducing dependency on air conditioning systems. This article reviews recent advances in fibrous structures with passive radiative cooling functionality and discusses the fabrication methods and reported performances of these textiles. The article also explores the passive radiative cooling mechanisms of natural species to guide the development of novel thermoregulating textiles.
MATERIALS & DESIGN
(2023)
Article
Engineering, Environmental
Wenli Bai, Esfandiar Pakdel, Qiming Wang, Bin Tang, Jinfeng Wang, Zhiqiang Chen, Yunhe Zhang, Christopher Hurren, Xungai Wang
Summary: This study investigates the synergistic effects of SiO2 nanoparticles and anatase TiO2 nanocomposites in removing VOCs. It was found that the TiO2/SiO2 nanocomposite with 30% SiO2 showed the best synergistic adsorption and photocatalytic activity for the elimination of ethyl acetate. Moreover, a facile immobilization method was successfully developed to load photocatalysts onto PEEK nonwoven, improving its photostability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Wenyang Tang, Bin Tang, Wenli Bai, Esfandiar Pakdel, Jinfeng Wang, Xungai Wang
Summary: This study explores the utilization of waste wool in a circular context by mechanically transforming it into wool powder for reusing as sustainable additives for textile functionalization. The results show that fabrics coated with wool powder have significantly higher adsorption efficiencies of ammonia and formaldehyde compared to ordinary wool fibers. The reuse of waste wool not only extends the practical applications of waste resources, but also alleviates the negative effect of textile disposal on the environment.
JOURNAL OF CLEANER PRODUCTION
(2022)
