Article
Biophysics
Da-xia Zhang, Rui Wang, Haichao Cao, Jian Luo, Tong-fang Jing, Bei-xing Li, Wei Mu, Feng Liu, Youming Hou
Summary: A study was conducted to synthesize an ecofriendly polymer for nanogel delivery system of pesticide, which showed favorable stability and efficient pest control under various conditions. The nanogel demonstrated prolonged pest control period and effective bioactivity against pests, indicating a promising future for pesticide delivery.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Chemistry, Physical
Masoud Sadeghi, Vico Tenberg, Stephan Munzberg, Heike Lorenz, Andreas Seidel-Morgenstern
Summary: This study measured and theoretically modeled the ternary phase diagram of t-valine and leucine in water, showing the formation of solid solutions between L-valine and L-leucine. Different models were used to describe the solubility curve, with a graphical separation method based on the Lippmann plot proposed for potential use in separating organic compounds forming solid solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Biomedical
P. Narmatha Christy, S. Khaleel Basha, V. Sugantha Kumari
Summary: This study developed a novel organic-inorganic hybrid bionanocomposite for bone tissue engineering by incorporating nanocellulose as a template material into a chitosan-poly(vinyl alcohol)-nanobioactive glass system. The resulting CPBNC bionanocomposite exhibited strong electrostatic interactions, improved mechanical properties, suitable porosity, and enhanced antibacterial effects. The findings suggest a simple method for synthesizing high-performance scaffolds for bone tissue engineering using nanocellulose.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Chemistry, Physical
Chinami Kaku, Satoshi Suganuma, Kiyotaka Nakajima, Etsushi Tsuji, Naonobu Katada
Summary: The selective hydrogenation of L-proline into L-prolinol using M MoOx/Al2O3 catalysts was investigated in this study. Pt-MoOx/Al2O3 catalyst exhibited higher activity and selectivity in the reaction. The Mo species, highly dispersed on both Pt nanoparticles and Al2O3 support, participated in the hydrogenation process.
Article
Polymer Science
Seong Baek Yang, Mohammad Rezaul Karim, Jungeon Lee, Jeong Hyun Yeum, Sabina Yeasmin
Summary: Novel poly(vinyl alcohol)/poly(vinyl butyral-vinyl alcohol) films with improved hydrophobicity were prepared by saponification of poly(vinyl acetate)/poly(vinyl butyral) blend films. The saponification process was confirmed by various analysis techniques. The hydrophobicity of the films increased with increasing poly(vinyl butyral) content. The saponified films exhibited improved mechanical properties and unique surface characteristics. These films have potential applications in biomaterials, filters, and medical devices.
Article
Polymer Science
Xu Yang, Baolong Wang, Di Sha, Yonggang Liu, Jiuduo Xu, Kai Shi, Cong Yu, Xiangling Ji
Summary: The injectable and antibacterial hydrogels based on c-poly (L-lysine)-modified poly (vinyl alcohol)/chitosan/silver complexes displayed excellent bactericidal properties, biocompatibility, and accelerated wound healing effects.
Article
Materials Science, Composites
Lujuan Li, Xiaodong Xu, Bingtao Wang, Pingan Song, Qianqian Cao, Yang Yang, Zhiguang Xu, Hao Wang
Summary: The research found that the structure, chain dynamics, and mechanical properties of PVA/PhyAc composite are influenced by the content of PhyAc. When the PhyAc content reaches 1.9 wt%, the PVA composite shows lower free volume and smaller diffusion coefficient, while the glass transition temperature (T-g) of PVA reaches the maximum at around 1.25 wt% of PhyAc. Additionally, adding 10 wt% PhyAc gives PVA the highest tensile strength and good antibacterial capability.
COMPOSITES COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Pejman Ghaffari-Bohlouli, Hafez Jafari, Alireza Khatibi, Mamak Bakhtiari, Beeta Tavana, Payam Zahedi, Amin Shavandi
Summary: By reinforcing electrospun PLDLLA/PVA nanofibers with PCCNWs, the hydrophilicity, degradation rate, and mechanical properties of the composite material were enhanced, promoting cellular activity and showing potential for bone tissue engineering applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Multidisciplinary
Idejan P. Gross, Rodrigo H. Saatkamp, Mariele P. Sanches, Alexandre L. Parize, Alfredo T. N. Pires
Summary: The Covid-19 pandemic has led to discussions about increased packaging and reduced reuse. Many countries are promoting the use of biodegradable polymers. This study investigated the properties of blends of poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVAL) with the addition of monobutyl maleate (MBM) as a compatibilizer. The results showed that MBM acted as a plasticizer, improving the flexibility and adhesion of the blend films.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Applied
Monika Muchova, Lukas Munster, Alzbeta Vavrova, Zdenka Capakova, Ivo Kuritka, Jan Vicha
Summary: Little is known about the link between the macromolecular architecture of dialdehyde polysaccharides (DAPs), their crosslinking capabilities, and the properties of resulting hydrogels. In this study, DAPs based on cellulose, dextrin, dextran, and hyaluronate were compared as crosslinkers for poly(vinyl alcohol), PVA. The study investigated the effects of crosslinker structure, molecular weight, aldehyde group density per macromolecule, and the size of spontaneously formed crosslinker nano-assemblies on the swelling, network parameters, viscoelastic properties, porosity, and cytotoxicity of PVA/DAP hydrogels. The findings reveal that crosslinkers based on linear polysaccharides perform more reliably, while the presence of branching can have both beneficial and detrimental effects at lower crosslinker concentrations.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Saadi Samadi, Akram Ashouri, Hersh Rashid, Shiva Majidian, Mahsa Mahramasrar
Summary: In this study, SBA-15 nanoporous silica was synthesized using a hydrothermal method and functionalized to prepare chiral heterogeneous ligands for asymmetric allylic oxidation reactions. By optimizing the reaction conditions, high yields and enantiomeric excess were achieved at specific temperature and catalyst concentrations. The recyclability of the chiral heterogeneous catalysts was also evaluated, showing no significant reduction in reaction results after three runs.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Polymer Science
Minjie Pei, Xiaotong Peng, Tingting Wan, Penghui Fan, Hongjun Yang, Xin Liu, Weilin Xu, Yingshan Zhou, Pu Xiao
Summary: The research synthesized PVA hydrogels with excellent performance, and significantly improved their tensile and compression strength through double-crosslinking. The hydrogel with the optimum composition can withstand a weight about 2220 times of its own weight, and exhibits good cytocompatibility.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Optics
Yu. A. Bandurin, A. N. Zavilopulo, Sh. Molnar, O. O. Shpenik
Summary: Excitation of L-valine molecules was studied using optical spectroscopy. The results showed that the molecule undergoes fragmentation and forms excited particles when colliding with electrons. The optical emission spectra exhibited different growth dynamics and notable features at specific wavelengths.
EUROPEAN PHYSICAL JOURNAL D
(2022)
Article
Chemistry, Applied
Tao Zhang, Qiuyan Yu, Yu Zhang, Xianfeng Wang, Liping Xu, Jiajun Wang, Pingan Song
Summary: In this study, a one-step scalable assembled PVA/TA complex coating was designed and fabricated to address the low oxygen barrier property of PLA film. By tailoring the mass ratio of PVA and TA, the oxygen barrier property of PLA film can be significantly improved. The research provides a convenient and efficient approach for the development of high oxygen barrier coatings.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Multidisciplinary
Yingxu Song, Sumei Zhang, Jian Kang, Jinyao Chen, Ya Cao
Summary: Annealing PVA films at different temperatures affects the water absorption, leading to changes in the formation of PVA-iodine complexes. The amount of PVA segments with moderate hydration has a significant impact on the complexation process.
Article
Chemistry, Applied
Heena, Komal Sharma, Kamlesh Kumar, Bhargab Das, Raj Kumar
Summary: In this study, holographic films were prepared using an automatic film applicator, and their performance was compared with films prepared by other methods. The results showed that holographic films prepared with the automatic film applicator had higher diffraction efficiency and more uniform thickness, making them suitable for holographic applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Athira S. Vijayan, Antony Joseph, Abey Joseph, T. S. Abhijith, Baiju G. Nair, V. Sajith
Summary: Novel polydopamine functionalized ceria-zirconia nanoparticles filled water-borne epoxy nanocomposite coatings were developed to prevent microbial-induced corrosion of mild steel. The coatings exhibited exceptional anti-biofouling and anti-biocorrosion properties due to the synergistic effect of PDA functionalization and zirconium incorporation, providing significant enhancement in charge transfer resistance and coating resistance.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yudan Yi, Qingyong Sun, Qijun Li, Bi Shi, Ya-nan Wang
Summary: Producing metal-free leather is an effective approach to eliminate Cr pollution and achieve sustainable development of the leather industry. However, current metal-free tanning technologies have limitations in terms of water sorption and charge properties. By using cationic amphiphilic acrylic copolymers (PSD) as retanning agents, the properties of metal-free leather can be significantly improved, including enhanced hydrophobicity, better dye absorption, and excellent filling effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yunqing Xia, Lifen Tong, Xiaofang Feng, Hubing Xiang, Yi He, Xiaobo Liu
Summary: By incorporating functionalized nanofillers, such as polydopamine-modified graphitic carbon nitride and cerium oxide, into epoxy coatings, their corrosion resistance can be improved and their protective period can be extended.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Weineng Lu, Guanhao Ma, Jinqing Qu
Summary: Four novel bis-chalcone-based carbazole derivative photoinitiators were designed and synthesized in this study. Their maximum absorption wavelengths were determined and found to exhibit high molar extinction coefficients. Furthermore, a three-component photoinitiation system including bis-chalcone/iodonium/amine was successfully used to trigger the rapid and efficient photopolymerization of acrylates. The photoinitiators also showed good photo bleaching and biocompatibility, making them suitable for applications such as 3D printing and deep coating curing.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Xingnan Zhou, Shixian Zhang, Yiheng Song, Hongmei Qin, Chuanxi Xiong, Shan Wang, Quanling Yang, Delong Xie, Rong Fan, Dan Chen
Summary: In this study, eco-friendly 3-amino-1,2,4-triazole (ATA) molecules were used to modify graphene oxide (GO) nanosheets for improving the anti-corrosion performance of water-borne epoxy (WEP) coating. The results show that ATA modification enhances the dispersion of GO in the polymer coating and significantly improves the barrier effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Hao Fu, Wei Bing, Xushibojie Liu
Summary: In this study, temperature-sensitive coatings with bacteria-killing and bacteria-releasing functions were prepared on silicone rubber surfaces by UV polymerization and UV photocatalysis. The modified surface exhibited strong and persistent bactericidal effect, inhibiting the formation of bacterial biofilm. Moreover, the smart surface can effectively release bacteria and resist bacterial adhesion through temperature changes. The modified silicone rubber surface showed good biocompatibility without cytotoxicity.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Lee Eyann, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa
Summary: By investigating the effect of MAA addition on the properties of the WEA core-shell emulsion, film and coating, it was found that MAA can significantly impact the structure and performance of the coatings, and has great potential for applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Jinkyu Choi, Kyung Hoon Min, Byeong Seok Kim, Sung-Hyeon Baeck, Sang Eun Shim, Yingjie Qian
Summary: A novel phosphorus-based flame retardant was designed by incorporating aryl groups, which effectively improved the flame retardancy and mechanical properties of polyurethanes.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Saowaluk Taechutrakul, Thananchai Piroonpan, Beata Paulina Rurarz, Slawomir Kadlubowski, Piotr Ulanski, Wanvimol Pasanphan
Summary: This study proposes the use of nanogels to disperse and stabilize water-insoluble organic pigment particles in water-based inks. The nanogels were prepared using electron beam-induced chemical reactions and showed good dispersion and stabilization properties. The use of nanogels in ink formulation improved the ink's hiding power, lightfastness, and resistance properties.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, 2-amino-5 mercapto-1,3,4-thiadiazole (ATT) was used as an intercalating agent to prepare ATT/BNNS nanofillers via a liquid-phase assisted ultrasound method. TEM results showed that ATT successfully exfoliated BNNS and reduced agglomeration. The WEP ATT/BNNS coating exhibited the best protective performance under saline immersion due to the combined action of ATT inhibitor and BNNS physical barrier.
PROGRESS IN ORGANIC COATINGS
(2024)
Review
Chemistry, Applied
Lijie Yin, Bo Zhang, Ming Tian, Nanying Ning, Wencai Wang
Summary: This paper reviews the recent progress in the synthesis of bio-based waterborne polyurethanes (BWPU) and focuses on its applications in coatings, adhesives, and antimicrobials. BWPU has attracted much attention due to its good physical and chemical properties, no VOCs emissions, exploitation of renewable substances, and structural design-ability.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yuyang Zhou, Yang Chen, Xinming Cao, Haodong Fu, Yun Li, Yonghui Zhang, Jun Ma, Xin Liu
Summary: This study proposes a strategy to fabricate a high-strength double-layer superhydrophobic actuator, which consists of a metal/glass-based superhydrophobic substrate and a polymer superhydrophobic coating. The coating has high adhesive strength, self-cleaning, anti-ultraviolet irradiation, and anti-stripping properties, along with photothermal and magnetic response capabilities, enabling its application in various fields.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Fengbiao Chen, Fei Gao, Xinru Guo, Yu Chen, Xuelang Gao, Liang Shen
Summary: In this study, various covalent adaptable networks (CANs) were synthesized using multifunctional amines and compared with CANs prepared from primary and secondary amines. The results showed that the performance of CANs is closely related to the crosslinking density, and increasing the content of secondary amines improves the performance but weakens the dynamics.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Qian Zhang, Mengyi Shen, Xingcai Liu, Hao Fu, Wenbo Yang, Jinyuan Zhao, Jian Wang, Yaping Du, Chunjie Ma
Summary: Rare earth-containing corrosion inhibitors were successfully synthesized and added into epoxy coatings for the anti-corrosion of steel materials. The results showed that the coatings with rare earth elements had better anti-corrosion performance, and this difference in performance could be explained by the inherent properties of rare earth elements.
PROGRESS IN ORGANIC COATINGS
(2024)