Article
Food Science & Technology
Weijia Zhu, Die Zhang, Xiaoqing Liu, Tiezheng Ma, Jiangling He, Qi Dong, Zia-ud Din, Jiaojiao Zhou, Lei Chen, Zhongze Hu, Jie Cai
Summary: This study proposed a simple route to develop crosslinked starch nanofibrous films with improved flexibility and mechanical properties, which showed promising potential application in the field of food packaging.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Food Science & Technology
Kamal Alahmad, Wenshui Xia, Qixing Jiang, Yanshun Xu
Summary: Fish protein hydrolysates from bighead carp were successfully produced using ficin enzymes under optimal conditions. The hydrolysis time and degree of hydrolysis values were positively correlated, with higher hydrolysis leading to increased hydrolysate yield. The hydrolysis process resulted in the formation of peptides with low molecular weight, improving the functional characteristics of the fish protein hydrolysates such as protein solubility. The thermal degradation of the hydrolysates occurred within a temperature range of 160 to 168 degrees Celsius, showing significant endothermic peaks. The fish protein hydrolysates exhibited higher oil holding capacity at a lower degree of hydrolysis and increased water holding capacity with higher hydrolysis. These hydrolysates can serve as supplements and excellent protein sources in various food applications.
Article
Food Science & Technology
Xingzi Lan, Tingting Luo, Zhixin Zhong, Dongchao Huang, Chengfeng Liang, Yurong Liu, Han Wang, Yadong Tang
Summary: By incorporating antioxidant and antibacterial agents into gelatin nanofibrous membrane and cross-linking at high temperature, the water resistance and antibacterial activity were enhanced, showing great potential in bioactive food packaging.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Polymer Science
Jing Jiang, Xueyu Yuan, Xi He, Shengjie Guan, Qian Wu, Ming Liu, Li Liu, Yudong Huang
Summary: This study reports a strategy to enhance the thermal resistance of silicone resins by introducing zirconium into the main chain. The molecular simulation shows that the introduction of zirconium atoms leads to the formation of high energy zirconium-oxygen bonds, increasing the cross-linking degree and suppressing the formation of cyclic oligomers. The results suggest that this work could provide a systemic experimental and theoretical foundation for thermal properties enhancement through metal atoms incorporation.
Article
Biochemistry & Molecular Biology
Huimin Yong, Fengfeng Xu, Dawei Yun, Huixia Hu, Jun Liu
Summary: Dialdehyde starch-catechin conjugates were used to produce chitosan-based antioxidant packaging films, which exhibited improved barrier properties and higher antioxidant activity compared to plain chitosan films.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Materials Science, Multidisciplinary
Liang Chen, Taotao Qiang, Xuejun Chen, Wenqi Ren, Hui Jie Zhang
Summary: The multi-cross-linked biodegradable film showed excellent mechanical properties due to the multiple hydrogen bonds, covalent bonds, and crystalline domains in its structure, acting as sacrificial bonds to dissipate energy. Additionally, it exhibited good light transmittance, improved moisture resistance, and biodegradability in natural soil.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Michael B. Sims, Bo Zhang, Zachary M. Gdowski, Timothy P. Lodge, Frank S. Bates
Summary: The effect of long-wavelength ultraviolet photo-cross-linking on microphase-separated coumarin-containing blockpolymers was investigated, revealing the ability to control the mechanical properties and preserve the ordered structure of the material. The cross-linking reaction showed high spatiotemporal control and stability in the ordered state.
Article
Biochemistry & Molecular Biology
Roberto Sole, Chiara Buranello, Alessandro Di Michele, Valentina Beghetto
Summary: This paper presents a novel strategy for preparing biodegradable chitosan derived films as new packaging systems. The combination of chitosan, adipic acid, and DMTMM allows for the production of high-performing cross-linked films. The experimental data show that the addition of DMTMM improves moisture content, moisture uptake, water vapor permeability, and UV barrier properties. The physical-mechanical properties of the obtained films are significantly improved due to cross-linking by DMTMM, making them promising for packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Thermodynamics
Xiao Wan, Baris Demir, Meng An, Tiffany R. Walsh, Nuo Yang
Summary: Epoxy resins are widely used polymer matrices for various applications, but the molecular-level knowledge needed to fully exploit their potential is still limited. This study uses molecular dynamics simulations to explore the relationships between thermal conductivity, mechanical properties, and cross-linking degree in an exemplar epoxy resin. The results suggest that both the elastic modulus and thermal transport of the resin increase with greater cross-linking, providing insights for designing customized epoxy resins with desirable thermal and mechanical attributes.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Multidisciplinary
Yulong Huang, Yuxuan Chen, Yong Hu, Travis Mitchell, Lu An, Zheng Li, Jason Benedict, Huashan Li, Shenqiang Ren
Summary: A promising design strategy for next-generation molecular magnetoelectrics has been proposed, which integrates molecular magnetism and electric conductivity through an in situ cross-linking strategy. This approach has successfully synthesized flexible molecular-based magnetoelectronics by cross-linking magnetic coordination networks that incorporate conducting chain building blocks, achieving significant improvements.
Article
Materials Science, Paper & Wood
Shichen Yuan, Maksim Tyufekchiev, Michael T. Timko, Klaus Schmidt-Rohr
Summary: The quantification of reducing chain ends in hydrolyzed cellulose samples using solid-state C-13 NMR was demonstrated. This method can serve as a primary standard to calibrate other methods for molar-mass determination in hydrolyzed cellulose.
Article
Materials Science, Multidisciplinary
Guangxin Lv, Elynn Jensen, Naisong Shan, Christopher M. Evans, David G. Cahill
Summary: This study synthesized 14 epoxy resin thermosets to systematically examine the impact of molecular structure on thermal conductivity. It was found that aromatic structures generally exhibit higher thermal conductivity compared to aliphatic structures, with naphthalene-based hardeners providing the highest thermal conductivity.
ACS APPLIED POLYMER MATERIALS
(2021)
Review
Polymer Science
Cleidiane Goncalves, Nelson Ferreira, Lucia Lourenco
Summary: Chitosan's molecular weight can be regulated through different hydrolysis methods, with acid hydrolysis being the most commonly used method, but may cause environmental impacts. Combining different hydrolysis methods may be the most effective approach, although it could increase costs. Enzymatic hydrolysis is widely studied due to its environmental advantages and high specificity, but factors such as hydrolysis time and cost still limit its industrial application.
Article
Dentistry, Oral Surgery & Medicine
T. Maravic, E. Mancuso, A. Comba, V Checchi, L. Generali, C. Mazzitelli, U. Josic, V Hass, A. Reis, A. D. Loguercio, F. R. Tay, L. Breschi, A. Mazzoni
Summary: The study found that EDC pretreatment and aging significantly influenced bond strength and endogenous enzymatic activity. After 5 years of aging in artificial saliva, the EDC-treated groups exhibited higher bond strength and lower gelatinolytic activity, especially in the etch-and-rinse groups. Raman spectra showed less defined amide III peaks in control specimens at T5.
JOURNAL OF DENTAL RESEARCH
(2021)
Article
Food Science & Technology
Athare Sangram Yashwant, Piyush Kashyap, Gulden Goksen
Summary: A major area of food research focuses on the study of how packaging materials, particularly protein films, can improve food preservation. Non-thermal and thermal techniques can be used to modify the properties of protein films, such as improving their water resistance and mechanical strength, ultimately reducing food waste and environmental pollution, and enhancing food quality, safety, and security.
Article
Polymer Science
Johana Andrade, Chelo Gonzalez-Martinez, Amparo Chiralt
Article
Biochemistry & Molecular Biology
Johana Andrade, Chelo Gonzalez-Martinez, Amparo Chiralt
Summary: Different lecithins were used to encapsulate carvacrol in liposomes for active food packaging films. The stability and retention of carvacrol in the films were influenced by the liposomal properties and membrane lipid composition. Soy lecithin enriched with phosphatidylcholine showed the highest stability and retention, while sunflower lecithin had the least stable system with the highest carvacrol losses.
Article
Food Science & Technology
Johana Andrade, Chelo Gonzalez-Martinez, Amparo Chiralt
Summary: The incorporation of cinnamic and ferulic acid into partially hydrolyzed PVA resulted in significant improvements in film properties, with ferulic acid showing a greater impact. The addition of phenolic acids enhanced the crystallinity, stiffness, and barrier capacity of the PVA films without affecting their thermal stability.
FOOD PACKAGING AND SHELF LIFE
(2021)
Article
Chemistry, Applied
Johana Andrade, Chelo Gonzalez-Martinez, Amparo Chiralt
Summary: Multilayer materials with good interlayer-adhesion were successfully obtained by thermocompression, showing excellent performance in food packaging. These materials exhibit superior barrier properties and effective control of microbial growth in food.
Article
Food Science & Technology
Johana Andrade, Chelo Gonzalez-Martinez, Amparo Chiralt
Summary: This study successfully produced Poly (vinyl alcohol) (PVA) films containing cinnamic acid (C) and ferulic acid (F) by solvent-casting and melt blending, and analyzed the effect of processing method and phenolic acid content on the microstructure, properties, and activities of the films.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Biochemistry & Molecular Biology
Adassa Gama Tavares, Johana Andrade, Rafael Resende Assis Silva, Clara Suprani Marques, Jose Osvaldo Ramos da Silva, Maria Cristina Dantas Vanetti, Nathalia Ramos de Melo, Nilda de Fatima Ferreira Soares
Summary: This study successfully encapsulated carvacrol into liposomes to enhance its application in active food packaging, and identified the optimal liposomal formulation. However, further research is needed to explore the effectiveness of carvacrol liposomes in food packaging films.
Article
Polymer Science
Tetsu Sato, Mariko Takahashi, Takeshi Saito, Masahito Toyonaga, Itsuo Tanuma, Rie Yamada, Satoru Hosoda
Summary: An automatic evaluation system for photooxidation has been developed and successfully applied to assess the photo-OIT of LDPE samples containing photooxidation stabilizers. The system allows independent setting of various measurement conditions and provides detailed information on the photooxidation process.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Zongzheng Zuo, Shuxue Zhou
Summary: In this study, three fluoroalkyl trimethoxysilane (FATMS) additives with different chain lengths were incorporated into a two-component polyurethane clearcoat to improve its hydrophobic durability. The coatings modified with FATMS maintained their surface hydrophobicity under various conditions, but quickly lost it when exposed to both UV irradiation and/or high temperature with water. The results suggest that the FATMS route is more suitable for indoor applications at room temperature.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Song Li, Feng Zhao, Xueya Wang, Zhihua Liu, Jingze Guo, Yutong Li, Shuangmei Tan, Zhenxiang Xin, Shuai Zhao, Lin Li
Summary: Green flame retardants have garnered attention for their environmental friendliness, but current options fall short in achieving high flame retardancy for flammable polymers and maintaining environmental protection. This study takes a two-pronged approach to address flame retardants and the flame-retardant process. An eco-friendly bio-based synergistic flame retardant (PAU), synthesized using phytic acid (PA) and urea (U), is used to create a flame retardant coating that can be directly applied to any surface shape using polydopamine as an adhesive. The resulting EPS-PAU exhibits excellent flame retardancy, smoke suppression, and light weight while only slightly increasing the density.
POLYMER DEGRADATION AND STABILITY
(2024)
