Polymer Science

Article Chemistry, Applied

Vancomycin-loaded methylcellulose aerogel scaffolds for advanced bone tissue engineering

Ana Iglesias-Mejuto, Beatriz Magarinos, Tania Ferreira-Goncalves, Ricardo Starbird-Perez, Carmen Alvarez-Lorenzo, Catarina Pinto Reis, Ines Ardao, Carlos A. Garcia-Gonzalez

Summary: This study developed a novel processing strategy to manufacture drug-loaded and personalized aerogels with nanostructures. The aerogels demonstrated bioactivity and antimicrobial effects, promoting bone regeneration and preventing infections in bone tissue engineering.

CARBOHYDRATE POLYMERS (2024)

Review Chemistry, Applied

Stimuli-responsive polysaccharide-based smart hydrogels for diabetic wound healing: Design aspects, preparation methods and regulatory perspectives

Tejaswini Kolipaka, Giriraj Pandey, Noella Abraham, Dadi A. Srinivasarao, Rajeev Singh Raghuvanshi, P. S. Rajinikanth, Vidya Tickoo, Saurabh Srivastava

Summary: This review focuses on the design and application of polysaccharide-based hydrogel wound dressings, highlighting aspects such as biocompatibility, biodegradability, drug entrapment, moisturizing ability, swelling, and mechanical properties. Additionally, various crosslinking methods and recent developments in stimuli-responsive hydrogels are discussed.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Carboxymethyl cellulose-based supramolecular hydrogel with thermo-responsive gel-sol transition for temporary plugging of oil pipeline in hot work

Ziteng Yang, Ruixuan Ni, Yang Yang, Jie Qi, Xingyu Lin, Yong Zhang, Li Wang, Yuanpeng Wu, Xiaojiang Li, Hongsheng Lu

Summary: In this study, a carboxymethyl cellulose-based supramolecular hydrogel with thermo-responsive gel-sol transition was prepared. The hydrogel showed tunable mechanical properties and good self-recovery. It quickly underwent a gel-sol transition upon thermal stimulus and exhibited pressure resistance and flame retardancy. Flushing the residual hydrogel with hot water effectively cleared the simulated pipeline. The supramolecular hydrogel has significant applications in the safe execution of hot work on pipelines.

CARBOHYDRATE POLYMERS (2024)

Review Chemistry, Applied

The single-cell modification strategies for probiotics delivery in inflammatory bowel disease: A review

Mengzhen Han, Wenzhi Lei, Jingjing Liang, Hongcai Li, Mengxin Hou, Zhenpeng Gao

Summary: Oral probiotic therapy is a safe and convenient method for treating various diseases. However, only a few probiotics can survive in the acidic and bile salt conditions of the gastrointestinal tract and have a nutritional effect on the host. Encapsulation technology and functional polysaccharides offer new approaches to improve the therapeutic efficacy of probiotics.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Ejected microcrystals probe jammed states of droplets in cyclodextrin-based emulsions

Jie Hou, Hua-Neng Xu

Summary: CD-based emulsions exhibit complex instability behaviors and the dispersion states of emulsion droplets are sensitive to the evolving morphologies of interfacial microcrystals. The ejection of ICs microcrystals from droplet surfaces provides a simple method to detect droplet-droplet interactions and phase transitions in CD-based emulsions.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Cellulose nanocrystals-based fluorescent biocarrier binding GAPDH protein with high affinity in cancer-target doxorubicin delivery

Xiaoping Zhao, Qin Wang, Ning Wang, Ge Zhu, Jingzhi Ma, Ning Lin

Summary: Cellulose nanocrystals (CNCs) show great potential in cancer treatment due to their biocompatibility and the ability to modify them with proteins and fluorescent molecules. Immobilizing CNCs with GAPDH and FITC creates the compound FCNC-G, which inhibits cancer cell proliferation and affects mitochondrial function. Loading FCNC-G with doxorubicin (DOX) further enhances its therapeutic potential.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Structural elucidation of a highly branched α-D-glucan from Huangjiu and its hepatoprotective activity via gut microbiome regulation and intestinal barrier repairment

Yi Yang, Qingxi Ren, Zhilei Zhou, Xiong Li, Dongliang Ren, Zhongwei Ji, Jian Mao

Summary: HJPS1-2, a polysaccharide component in Huangjiu, has been found to have significant hepatoprotective effects, improving ethanol-induced hepatic dysfunction and steatosis. It also ameliorates gut microbiota dysbiosis and enhances intestinal barrier function, leading to reduced release of hepatic inflammatory cytokines and alleviation of liver disease.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Understanding the thermoplasticization mechanism of wood via esterification with fatty acids: A comparative study of the reactivity of cellulose, hemicelluloses and lignin

Prabu Satria Sejati, Firmin Obounou Akong, Frederic Fradet, Philippe Gerardin

Summary: This study investigates the role of different wood components in esterification and their effects on wood thermo-plasticization. Cellulose is found to play a significant role in wood plasticization, while hemicelluloses also have an effect. Acylated lignin improves the hydrophobic properties of the materials.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Riboflavin mediated UV crosslinking of chitosan-gelatin cryogels for loading of hydrophobic bioactive compounds

Mihai Brebu, Raluca Petronela Dumitriu, Daniela Pamfil, Elena Butnaru, Elena Stoleru

Summary: Chitosan-gelatin cryogels with good loading capacity of hydrophobic compounds were obtained through UV-induced crosslinking. These cryogels showed increased network stability, enhanced elastic behavior, higher structural strength, and self-healing capacity.

CARBOHYDRATE POLYMERS (2024)

Article Engineering, Chemical

Unraveling the role of NaCl on microfiltration fouling: Insights from In situ analysis of dynamic interfacial behaviors

Chao Zhang, Yuxin Qu, Jie Liu, Qindong Chen, Mingshuai Shao, Weiyi Li, Qiyong Xu

Summary: Resolving the interfacial behaviors is crucial for understanding membrane fouling formation, but quantifying the rapid changes in complex solutions remains challenging. In this study, PVDF membrane and OCT were used to examine the dynamic interactions between membrane foulants and foulants during the filtration of food waste digestate, and the effects of varying concentrations of sodium chloride were investigated.

JOURNAL OF MEMBRANE SCIENCE (2024)

Article Engineering, Chemical

Fouling- and chlorine- resistant bilayer heterostructured Janus charged nanofiltration membranes constructed via novel electrospray polymerization-based method

Zhongbao Ma, Chao Wang, Ran Li, Yi Zhao, Chenglin Zhang, Long-Fei Ren, Jiahui Shao

Summary: This study overcomes the fouling and chlorine resistance issues of traditional Janus charged membranes by preparing bilayer heterostructured Janus charged NF membranes. The results show that these membranes have high antifouling properties and chlorine resistance.

JOURNAL OF MEMBRANE SCIENCE (2024)

Review Chemistry, Applied

Structure-activity relationships of bioactive polysaccharides extracted from macroalgae towards biomedical application: A review

Yinyi Fu, Haixin Jiao, Jianzhong Sun, Charles Obinwanne Okoye, Hongxing Zhang, Yan Li, Xuechu Lu, Qianqian Wang, Jun Liu

Summary: Macroalgae polysaccharides (MPs) are valuable bioactive compounds with diverse structures. Understanding the structure-activity relationships is crucial for developing effective biomedical applications.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

One-step wet-spinning of conducting polymer and cellulose nanofiber composites for fiber-type organic electrochemical transistors

Minhu Huang, Seunghyeon Lee, Il-Young Jo, Hyunbeen Park, Bong Sup Shim, Myung-Han Yoon

Summary: This study investigated the fabrication process and properties of fiber-type organic electrochemical transistors (OECTs). By utilizing composite fibers of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and TEMPO-oxidized cellulose nanofiber (CNF), the mechanical strength of the fibers was significantly improved, leading to higher carrier mobility. These findings suggest great potential for eco-friendly wearable/textile electronics.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Mechanism for the seleikctive adsorption of uranium from seawater using carboxymethyl-enhanced polysaccharide-based amidoxime adsorbent

Qi Xin, Qingliang Wang, Kaiwen Luo, Zhiwu Lei, Eming Hu, Hongqing Wang, Hongqiang Wang

Summary: Due to the development and use of nuclear energy, land-based uranium resources are becoming scarce. To address this shortage, a new carbon adsorbent was designed and synthesized for extracting uranium from seawater. The experimental results showed that the adsorbent had high adsorption capacity and selectivity for uranium, as well as good oil resistance and reusability.

CARBOHYDRATE POLYMERS (2024)

Article Engineering, Chemical

Spatially confined enzymatic tandem system with GOx and HRP compartmentalized in ultrafiltration membrane

Sara Barricella, Jordi M. Fuertes, Kevin H. Putera, Aubrey E. Quigley, Victoria Haritos, Benny D. Freeman, Gil Garnier

Summary: In this study, a robust multi-enzymatic cascade system with spatial compartmentalization was reported. The membrane served as a porous scaffold facilitating enzyme immobilization and recyclability, improving stability and catalytic efficiency. The spatially defined cascade system exhibited superior catalytic activity.

JOURNAL OF MEMBRANE SCIENCE (2024)

Article Engineering, Chemical

Flow and mass transfer prediction in anisotropic TPMS-structures as extracorporeal oxygenator membranes using reduced order modeling

Kai P. Barbian, Lukas T. Hirschwald, John Linkhorst, Michael Neidlin, Ulrich Steinseifer, Matthias Wessling, Bettina Wiegmann, Sebastian Jansen

Summary: This study aimed to develop a simplified model to predict flow distribution and gas transfer inside TPMS structures. Through a parametric study and model comparison, it was found that using artificial neural networks (NN) as a modeling strategy can accurately characterize mass transfer in TPMS structures. The developed reduced order model (ROM) demonstrated high accuracy in predicting gas transfer rates and pressure drop. The anisotropic TPMS structure showed advantages in flow distribution and gas transfer rates compared to isotropic structures.

JOURNAL OF MEMBRANE SCIENCE (2024)

Article Chemistry, Applied

Exploring the relationship between nutritional properties and structure of chestnut resistant starch constructed by extrusion with starch-proanthocyanidins interactions

Xixi Zeng, Houyu Kang, Ling Chen, Xinyi Shen, Bo Zheng

Summary: The interaction between hot-extrusion treatment and starch-proanthocyanidins was found to enhance the nutritional properties of chestnut starch, including an increase in resistant starch content and enhanced alpha-amylase inhibitory activity, antioxidant activity, and antiglycation activity. Additionally, the treated starch increased the levels of short chain fatty acids, particularly propionate, and enriched beneficial intestinal bacteria. This study provides an approach to improve the nutritional functions of starch and offers guidance for improving the nutritional quality of chestnut starch-based foods.

CARBOHYDRATE POLYMERS (2024)

Article Engineering, Chemical

Intensifying low-pressure membrane performance based on bio-cake layers coupled with pre-loading layers

Xuesong Ye, Jun Nan, Xinhao Hu, Zhencheng Ge, Fangmin Wu, Bohan Liu, Meng Chen, Li He, Daliang Xu

Summary: By combining low-pressure ultrafiltration membranes with three pre-loading layers, this study successfully improved effluent quality and shortened ripening time, highlighting the potential of the LPM strategy in decentralized water supplies.

JOURNAL OF MEMBRANE SCIENCE (2024)

Article Engineering, Chemical

Fabrication of an electrically conductive separation layer with stable nanonetworks for efficient removal of heavy metals under an external voltage

Fangfang Zhang, Huiju Shao, Yanfang Diao, Kang Li, Wei Gao, Shuhao Qin

Summary: A novel nanocomposite membrane with a dual-charged electrically conductive separation layer was fabricated, exhibiting excellent heavy metal ion removal and antifouling properties through manipulation of microstructure and deposition layers.

JOURNAL OF MEMBRANE SCIENCE (2024)

Article Engineering, Chemical

Modeling the flux of volatile fatty acid in a membrane distillation with the effect of pH

Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho

Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.

JOURNAL OF MEMBRANE SCIENCE (2024)