Article
Agriculture, Multidisciplinary
Abdollah Hematian Sourki, Mohammad Ali Hesarinejad
Summary: In this research, the properties of a dilute barley beta-glucan (BBG) solution in the presence of different factors were evaluated. The models of Higiro and Tanglertpaibul-Rao were found to be more efficient in determining the intrinsic viscosity of BBG at different temperatures, pH levels, and the presence of salts and sugars. The flexibility index and activation energy of BBG indicated its high flexibility in different environmental conditions, making it a recommended natural thickener for food-related fluids.
CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE
(2023)
Article
Chemistry, Applied
Jianfen Ye, Xiao Hua, Xiaomei Lyu, Wei Zhao, Wenbin Zhang, Ruijin Yang
Summary: A neutral polysaccharide (NPP) was extracted from peanut sediment, purified, and found to have a specific polysaccharide structure and chain conformation. Aggregates formed in the polysaccharide solution, but could be eliminated through specific treatments.
CARBOHYDRATE POLYMERS
(2021)
Article
Polymer Science
Hao-Tian Wu, Ze-Fan Yao, Zhe Xu, Hua-Kang Kong, Xin-Yi Wang, Qi-Yi Li, Jie-Yu Wang, Jian Pei
Summary: This study systematically developed three novel polymers with twisted backbone conformation and revealed the significant influence of this conformation on the assembly structures of polymers. The twisted backbone conformation prevents the formation of ordered assembly structures and leads to nonaggregated chains in solution and highly disordered solid-state packing structures.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Rong Xu, Lin Zheng, Sirui Zhang, Mingtao Huang, Mouming Zhao
Summary: To solve the problem of high salt content in the separation of soluble undenatured type II collagen (SC II) using salt-out method, the coacervation of SC II and anionic polysaccharides was studied. Different anionic polysaccharides were tested and their effects on SC II recovery rate and molecular conformation were analyzed. The results showed that anionic polysaccharides with smaller size and shorter chain length had better performance in SC II recovery and formed more compact complexes.
FOOD HYDROCOLLOIDS
(2023)
Article
Chemistry, Applied
Severin Eder, Patrick Zueblin, Michael Diener, Mohammad Peydayesh, Samy Boulos, Raffaele Mezzenga, Laura Nystrom
Summary: The study investigates the impact of polysaccharide conformation on ultrafiltration performance, revealing significant deviations between nominal MWCO and apparent M-w due to conformational variations. Results indicate that polysaccharides with different conformations show varied recovery rates during ultrafiltration processes based on experimental data.
CARBOHYDRATE POLYMERS
(2021)
Article
Polymer Science
Robert J. S. Ivancic, Sara Orski, Debra J. Audus
Summary: The experimental challenges in characterizing the structure of branched polymers can be overcome by using molecular dynamics models to simulate their properties. This study focuses on linear low-density polyethylene (LLDPE) and develops a model that replicates all-atom simulations and experiments. The relationship between branched and linear dilute solution properties is tested using this model, and a general theory for the dilute solution properties of linear polymers with linear side-chain branches is proposed.
Article
Polymer Science
Angel Romo-Uribe, Rogelio Rodriguez-Talavera, Maria Guadalupe Hernandez-Morales
Summary: A change in the conformation of PBIC in dilute solution was induced by temperature, resulting in abrupt changes in the index of refraction and viscosity. The conformation transition temperature was found to be independent of the wavelength used to measure the index of refraction and increased with solution concentration and PBIC molecular weight. The sudden changes in the index of refraction and viscosity were not caused by macromolecular aggregation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Xin Li, Jingkang Wang, Ting Wang, Na Wang, Shuyi Zong, Xin Huang, Hongxun Hao
Summary: This review discusses the theories of nucleation from solution, summarizes the molecular process of nucleation, and explores the relationship between molecular conformation in solution and crystal as well as the impact of solute molecular flexibility on nucleation.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Acoustics
Haisong Wang, Jinran Chen, Pengfei Ren, Yiwen Zhang, Stanley Omondi Onayango
Summary: The study found that ultrasound irradiation significantly reduced the molecular weight and particle size of yellow tea polysaccharides. Partial degradation of yellow tea polysaccharides occurred during ultrasound treatment, but the monosaccharide composition remained unchanged. Irradiation enhanced the free radical scavenging activity of yellow tea polysaccharides.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Polymer Science
Jie Yang, Xiaohu Yao, Zhaoxu Meng
Summary: This study investigates the molecular mechanisms of polyvinylidene fluoride (PVDF) influenced by temperature, electric poling, and mechanical stretching using molecular dynamics simulations. The results show that electric field and uniaxial deformation can induce the transformation from alpha-to beta-phase in PVDF and affect the dipole moment of the system. Mechanical stretching, on the other hand, significantly changes the chain conformations. The study also explores the synergistic effect of electric poling and mechanical stretching and provides molecular-level mechanisms for this effect.
Article
Chemistry, Applied
Lei Ji, Antonia Orthmann, Leonardo Cornacchia, Jinfeng Peng, Guido Sala, Elke Scholten
Summary: Polysaccharides play a significant role in the sensorial properties of foods due to their lubricating ability. In this study, the lubrication performance of polysaccharides with different characteristics was investigated. The results showed that conformation was a key factor in determining lubrication ability. Rigid rod-like polysaccharides exhibited better lubricating capacity and resistance to changes in pH and ionic strength compared to flexible polysaccharides. The friction behavior of flexible polysaccharides was highly dependent on concentration and sliding speed.
CARBOHYDRATE POLYMERS
(2022)
Article
Food Science & Technology
Junwen Cheng, Jiling Song, Yanbin Wang, Hailong Wei, Liang He, Yu Liu, Hongmei Ding, Qingrong Huang, Chuanjiu Hu, Xubo Huang, Yihan Jiang, Youliang Wu
Summary: A novel water-soluble mannogalactan (SSPS1) was obtained from the fruiting bodies of the Sanghuangporus sanghuang. It showed potent anticancer activity on HepG2 cells by inducing apoptosis through a mitochondria-mediated signaling pathway.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Food Science & Technology
Xubo Huang, Yalan Zhang, Na Xie, Junwen Cheng, Yanbin Wang, Shaofei Yuan, Qin Li, Rui Shi, Liang He, Min Chen
Summary: A polysaccharide (PBSR1) extracted from the processing waste of Phyllostachys pracecox bamboo shoots was found to be a triple-helix galactan with excellent thermal stability and antioxidant properties, as well as immunostimulatory effects.
Article
Polymer Science
Daniel F. Sunday, Adam B. Burns, Tyler B. Martin, Alice B. Chang, Robert H. Grubbs
Summary: Bottlebrush polymers, composed of side chains grafted along a linear backbone, have been intensively studied in solution to understand their structure-property relationships. This study focuses on the impact of graft density on polynorbornene-based bottlebrush polymers with polystyrene side chains. Small-angle neutron scattering measurements reveal that side chain-side chain interactions play a dominant role in polymer conformation, and scaling relationships for the radius of gyration and the persistence length are developed based on the crowding parameter. The result highlights the importance of backbone chemistry in determining the scaling relationships and solution conformation.
Review
Food Science & Technology
Hao-Ying-Ye Yao, Jun-Qiao Wang, Jun-Yi Yin, Shao-Ping Nie, Ming-Yong Xie
Summary: Nuclear magnetic resonance (NMR) is widely used for analyzing the molecular structure and conformation of polysaccharides. It can infer linkage and sequence of sugar residues, as well as be applied in various aspects such as conformation, quantitative analysis, and interaction analysis of polysaccharide mixtures.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Applied
Xiaobei Li, Hongbin Zhang, Qiangwei Jin, Zhixiang Cai
FOOD HYDROCOLLOIDS
(2018)
Article
Nanoscience & Nanotechnology
Shanming Hu, Zhixiang Cai, Tao Huang, Hongbin Zhang, Aishui Yu
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Multidisciplinary
Zhixiang Cai, Yue Wei, Min Wu, Yalong Guo, Yanping Xie, Ran Tao, Ruiqi Li, Pengguang Wang, Aiqin Ma, Hongbin Zhang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Applied
Zhixiang Cai, Juan Wu, Min Wu, Ruiqi Li, Pengguang Wang, Hongbin Zhang
CARBOHYDRATE POLYMERS
(2020)
Article
Chemistry, Applied
Yue Wei, Zhixiang Cai, Min Wu, Yalong Guo, Ran Tao, Ruiqi Li, Pengguang Wang, Aiqin Ma, Hongbin Zhang
FOOD HYDROCOLLOIDS
(2020)
Article
Biochemistry & Molecular Biology
Zhixiang Cai, Qiaoyu Dai, Yalong Guo, Yue Wei, Min Wu, Hongbin Zhang
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2019)
Article
Chemistry, Applied
Zhixiang Cai, Yue Wei, Yalong Guo, Aiqin Ma, Hongbin Zhang
FOOD HYDROCOLLOIDS
(2020)
Article
Chemistry, Applied
Yue Wei, Yanping Xie, Zhixiang Cai, Yalong Guo, Hongbin Zhang
Summary: This study developed GMO-CFG emulsifiers with different degrees of substitution and investigated their interfacial properties, revealing that hydrophobically modified CFG can enhance stability and the ability to produce fine droplets, while esterification and its degree have significant effects on the interfacial properties.
Review
Food Science & Technology
Zhixiang Cai, Yue Wei, Hongbin Zhang, Pingfan Rao, Qiang Wang
Summary: This review highlights the extraction, physicochemical properties, biological activities, and functional properties of corn fiber gum (CFG), emphasizing its emulsifying property and potential applications in the food industry. It is found that the biological activities and functional properties of CFG are closely related to its fine structural features, with the protein content and nutraceutical phenolic compound content playing significant roles in its emulsifying property. Additional chemical or physical modifications may enhance the functional properties of CFG, making it a promising ingredient in the food industry for its antioxidant, immunomodulatory, dietary fiber, and emulsifying properties.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Zhixiang Cai, Yanmei Tang, Yue Wei, Pengguang Wang, Hongbin Zhang
Summary: Various studies have shown that physical anti-adhesion barriers like hydrogels can effectively reduce or prevent postsurgical peritoneal adhesions, while the use of chemical cross-linkers in chemical hydrogels may lead to cytotoxicity or unwanted side effects. A physically cross-linked hyaluronan cryogel was developed as a novel anti-adhesion biomaterial, demonstrating excellent biocompatibility and preventing fibroblast penetration, with the ability to inhibit inflammatory responses and modulate the fibrinolytic system to prevent peritoneal adhesions.
Article
Nanoscience & Nanotechnology
Zhixiang Cai, Shanming Hu, Yue Wei, Tao Huang, Aishui Yu, Hongbin Zhang
Summary: The development of an in situ covalently crosslinked three-dimensional (3D) supramolecular network for silicon electrodes shows promise in improving cycling performance and overall performance of lithium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Pengguang Wang, Min Wu, Ruiqi Li, Zhixiang Cai, Hongbin Zhang
Summary: In this study, a stretchable, tough, and self-recoverable DN hydrogel was fabricated by combining physically cross-linked carboxymethylated curdlan (CMCD) and covalently cross-linked polyacrylamide (PAAm) networks. The DN hydrogel demonstrated tunable, multiple, and recoverable mechanical properties, making it suitable for applications such as cartilage repair.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Engineering, Biomedical
Zhixiang Cai, Yanmei Tang, Yue Wei, Pengguang Wang, Hongbin Zhang
Summary: In this study, a double-network hydrogel based on hyaluronan and gellan gum was fabricated, which exhibited high compressive strength, high toughness, stiffness, and good self-recovery property. The hydrogel could support chondrocyte proliferation and new extracellular matrix deposition, correlated with its improved mechanical properties, good cytocompatibility, and biodegradability. In vivo experiments in animals demonstrated that this hydrogel facilitated hyaline-like cartilage regeneration. These findings suggest that the developed hydrogel as a biomimetic extracellular matrix offers a hopeful new platform for cartilage tissue engineering.
ACTA BIOMATERIALIA
(2022)
Article
Chemistry, Physical
Yue Wei, Yanping Xie, Zhixiang Cai, Yalong Guo, Min Wu, Pengguang Wang, Ruiqi Li, Hongbin Zhang
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Materials Science, Biomaterials
Zhixiang Cai, Hongbin Zhang, Yue Wei, Min Wu, Ailing Fu
BIOMATERIALS SCIENCE
(2019)
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.