Article
Chemistry, Applied
SeonHyung Lee, Gna Ahn, Woo-Ri Shin, Jae-Won Choi, Yang-Hoon Kim, Ji-Young Ahn
Summary: To increase the freshness of vegetables, the removal of ethylene is necessary, which can be achieved through chemical methods. However, for environmental reasons, eco-friendly approaches are being developed. In this study, Chlorella vulgaris was used as a biological material for ethylene removal, supported by bacterial cellulose produced by Gluconacetobacter hansenii. The potential of BC hydrogels to integrate C. vulgaris as a sustainable ethylene absorber for green food packaging and biomass technology was demonstrated.
CARBOHYDRATE POLYMERS
(2023)
Article
Energy & Fuels
Xiaoli Yang, Zelin Li, Mingyu Guo, Tao Zhao, Xiong Su, Wei Jiang, Guangting Han, Haoxi Ben
Summary: A series of multifunctional NiCu/WO3 catalysts were prepared and applied for the one-pot catalytic conversion of cellulose to ethylene glycol (EG). By tuning the metal ratio and WO3 content, a high EG selectivity of 58.9% and a total diols selectivity of 83.9% were achieved. The catalyst exhibited excellent performance in the conversion of raw biomass, attributed to the unique catalyst structure and the formation of NiCu-WOx-1-O(H) interfacial sites.
Article
Engineering, Chemical
M. Raheel Anjum, Shehla Mushtaq, M. Asad Abbas, Azhar Mahmood, Habib Nasir, Hussnain A. Janjua, Qamar Malik, Nasir M. Ahmad
Summary: The study focused on blending polystyrene with polyethylene glycol and silver sulfadiazine to form thermally stable polymeric blends with improved antialgal properties, showing potential for a wide range of applications, including marine coatings. The incorporation of PEG and SS decreased contact angles while increasing hydrophilicity and surface energy, leading to significant antialgal activity in the synthesized blends. The PSPS10 composition exhibited the highest inhibition zones against different algal strains, indicating the synergetic effect of PEG and SS in enhancing antialgal performance.
ADVANCES IN POLYMER TECHNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Ana-Lorena Neagu, Anamaria Zaharia, Octavian Dumitru Pavel, Alina Tirsoaga, Iulia Elena Neblea, Sorin Viorel Dolana, Carmen Elena Tebrencu, Tanta-Verona Iordache, Andrei Sarbu, Rodica Zavoianu
Summary: This work focuses on the synergetic effect of immobilizing Rhamnus frangula L. (RfL) phytoextract in layered double hydroxides (LDHs) and encapsulating them into biocompatible hydrogels (HG). After immobilization of the phytoextract in LDHs, they were embedded into HG matrixes based on polyethylene glycol diacrylate (PEGDA). The results showed improved release behavior of the phytoextract from the composite HGs, indicating the synergistic effect of PEGDA network and LDH particles.
Article
Materials Science, Paper & Wood
Yangyang Zhang, Qinfeng He, Kayoko Kobayashi, Ryosuke Kusumi, Masahisa Wada
Summary: Hydrogels prepared from enzymatically synthesized dextran and carboxymethyl cellulose showed different properties depending on the CMC and dextran content. They exhibited excellent adsorption capabilities for heavy metal ions and dyes, and demonstrated potential for multiple reuses.
Article
Polymer Science
Klaudia Ordon, Piotr Szatkowski, Wojciech Piekarczyk, Elzbieta Pamula, Kinga Pielichowska
Summary: Novel polyurethane-based materials were synthesized using a two-step process with poly(epsilon-caprolactone) diol (PCL) and 1,3-propanediol/starch (PDO/ST) systems as chain extenders/cross-linkers. Poly(ethylene glycol)/starch (PEG/ST) system as a phase change material (PCM) decreased the maximum setting temperature, and hydroxyapatite (HAp) was used as a bioactive nanofiller. The synthesized polyurethanes showed good energy storage effect and potential application for bone cements.
Article
Polymer Science
Dan Liu, Cheng-Jie Fan, Yi Xiao, Ke-Ke Yang, Yu-Zhong Wang
Summary: In this study, a self-healing polyurethane elastomer (PPG-UPy-SS) was developed with desirable mechanical performance and excellent self-healing capacity by incorporating multiple dynamic interactions. The introduction of UPy motif and APDS in multiphase contributed to the improvement of mechanical strength and self-healing efficiency, respectively.
Article
Materials Science, Multidisciplinary
Niu Niu, Na Yang, Cong Yu, Dong Wang, Ben Zhong Tang
Summary: A smart light-responsive drug-delivery hydrogel has been developed for efficient antibacterial therapy through photothermal-chemodynamic treatment, accelerating wound healing. The hydrogel exhibits excellent antibacterial performance and good biocompatibility.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Applied
Lian Shu, Xiong-Fei Zhang, Zhongguo Wang, Jianfeng Yao
Summary: Biobased cellulose films were fabricated from low quality cotton cellulose using green solvents, showing outstanding optical, thermal, and mechanical properties. These cellulose materials have great potential to replace plastics in the field of biodegradable packaging.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Applied
Raghav Soni, Yu- Hsu, Taka-Aki Asoh, Hiroshi Uyama
Summary: Complex films prepared by mixing different-storageduration starch pastes with cellulose nanofiber demonstrate improved mechanical properties and wet strength, but long-term storage negatively affects their properties. Optimizing the storage time of starch pastes can improve film properties, providing an environmentally friendly and energy-conserving method.
FOOD HYDROCOLLOIDS
(2021)
Article
Chemistry, Applied
Xiaojia Guo, Huimin Gao, Jingxian Zhang, Lina Zhang, Xiaowen Shi, Yumin Du
Summary: The fabrication of polymeric composite hydrogels with hierarchical structure using a one-step and template-free counterion exchange method shows great potential for various applications. The composite hydrogels exhibited interconnected nanoporous structure, enhanced thermal degradation, improved mechanical strength, and antibacterial activity, which can be easily controlled by adjusting electrode type, current density, and electrodeposited suspension.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Applied
E. Suljovrujic, M. Krstic, Z. Rogic Miladinovic, S. Petrovic, A. Leskovac, G. Stamboliev
Summary: Hydrogels with OEG, OPG, and combined OEG/OPG pendant chains were synthesized and their properties were investigated. An optimized method for OPGMA synthesis was developed. PEG6MA, PPG5MA, and P(EG6/PG5)MA hydrogels were produced using gamma radiation-induced polymerization. The combination of OEG and OPG allowed easy tuning of the phase transition temperature, making it suitable for biomedical applications.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Polymer Science
Andrew Chung, Burak Tavsanli, Elizabeth R. Gillies
Summary: Hydrogels have diverse applications, and OPF has attracted attention for its tunable degradation. By introducing protected amines into OPF, the degradation rate can be controlled by triggering the cleavage of the polymer backbone. This approach can be applied to other stimuli, providing a versatile method to control OPF degradation.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Biotechnology & Applied Microbiology
Asiyah Esmail, Ana T. Rebocho, Ana C. Marques, Sara Silvestre, Alexandra Goncalves, Elvira Fortunato, Cristiana A. Torres, Maria A. M. Reis, Filomena Freitas
Summary: Two Komagataeibacter xylinus strains demonstrated the ability to produce bacterial cellulose from petrochemical-derived plastic monomers. The strain DSM 2004 showed higher production and different physical properties compared to strain DSM 46604. This study highlights the potential for upcycling terephthalic acid and ethylene glycol into a value-added product that reduces environmental burden.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Polymer Science
Mahmoud Moustafa, M. A. Abu-Saied, Tarek H. Taha, Mohamed Elnouby, Eman A. El Desouky, Saad Alamri, Ali Shati, Sulaiman Alrumman, Huda Alghamdii, Mohmed Al-Khatani, Rahmah Al-Qthanin, Ahmed Al-Emam
Summary: Kappa-carrageenan was blended with potato peel starch to enhance hydrogel properties and water-absorbing capacity for safe and biodegradable children's toys. The blend formation showed proper reaction with shifts in characteristic peaks, rough surface topology, and presence of small pores. Enzymatic treatment displayed increased surface roughness and higher water-uptake capacity, demonstrating potential for making safe and biodegradable molded toys.
