Article
Chemistry, Physical
Aycan Altun, Osman Nuri Sara
Summary: In this study, the densities and viscosities of binary mixtures of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide, [bmim][NTf2], and ethylene glycol (EG) were experimentally measured. A first-order polynomial and Vogel-FulcherTammann equation were used to estimate the densities and viscosities of the mixtures, respectively. The excess molar volume, viscosity, and Gibbs energy of activation for viscous flow were calculated and fitted to the Redlich-Kister equation. The thermal expansion coefficients and partial and apparent molar volumes of [bmim][NTf2] and EG in their binary mixtures were also investigated.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Thermodynamics
Naved Azum, Maroof Ali, Sana Fatima, Abdullah M. Asiri
Summary: This study reveals the synergistic behavior and solute-solvent interactions in the IL-EGME binary mixture through spectroscopic investigations. The results indicate the presence of strong hydrogen bonding between IL and EGME molecules, leading to the formation of a new entity.
FLUID PHASE EQUILIBRIA
(2022)
Article
Chemistry, Multidisciplinary
Ekkachai Martwong, Yvette Tran
Summary: The study reports on the synthesis and temperature-responsive properties of poly(PEGMA) hydrogel thin films. Surface-attached poly(PEGMA) hydrogel films were synthesized using a simple, versatile, and well-controlled thiol-ene click reaction method, with the transition temperature finely tunable by adjusting the number of PEG units. The LCST properties of the hydrogel films are not sensitive to salt, holding promise for applications in biology such as injectable hydrogels, drug delivery systems, microfluidic valves, and flow switches for biotechnologies.
Article
Biochemistry & Molecular Biology
Irina M. Le-Deygen, Oxana E. Musatova, Victor N. Orlov, Nikolay S. Melik-Nubarov, Irina D. Grozdova
Summary: This study provides the first evidence of the interaction between PEG and HA in aqueous solutions. The binding of PEG to HA requires multiple free primary hydroxyls regularly distributed along the polysaccharide chain. Additionally, PEG-induced compaction of HA may be related to changes in plasma membrane properties and resealing of mechanical injuries.
Article
Polymer Science
Graham Hayes, Ben Drain, C. Remzi Becer
Summary: Poly(2-oxazoline)s are promising for biomedical applications, but limited synthetic approaches exist for star-shaped polymers. A novel bis-oxazoline cross-linker was developed via a fast thiol click reaction, allowing the preparation of well-controlled core cross-linked star polymers. The synthesized star-shaped polymers were characterized extensively and showed potential for encapsulation of dihydroxyanthroquinone.
Article
Polymer Science
Moein Zarei, Miroslawa El Fray
Summary: Polymeric materials have a wide range of applications due to their controllable properties. In this study, a series of PBS-DLS-PEG copolymers were synthesized with different molecular weights of PEG to investigate their surface and thermal properties. The incorporation of higher molecular weight PEG improved the surface wettability of the materials while maintaining their thermal properties.
Article
Engineering, Chemical
Ting Wang, Xiao-Xing Huang, Lu-Lu Huang, Li-Guang Wu, Dong-Feng Zhu, Guo-Qin Wang, Xiao-Jia Jiang
Summary: In order to reduce emissions in industries such as automotive coatings, the separation and recovery of ethylene glycol butyl ether (EB) from wastewater is crucial. This study focused on using nanomaterials as additives to construct mixed matrix membranes (MMMs) for pervaporation separation of EB. The addition of nanomaterials improved the affinity and diffusion process of EB in MMMs, enhancing the separation performance. Surface modification of nanomaterials with polyethylene glycol (PEG) further enhanced the affinity and swelling performance, resulting in improved membrane flux and selectivity. The MMMs with PEG2000-grafted nanomaterials showed the best performance and stability for separating EB compared to commercial membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Qiuquan Cai, Jiahong Jiang, Hongjie Zhang, Pengfei Ge, Liu Yang, Weipu Zhu
Summary: A PTX-loaded nanodrug was prepared through self-assembly of PTX and an amphiphilic PEG derivative, showing good biocompatibility and selective drug release under intratumor reducing conditions. This nanodrug has potential for delivering hydrophobic drugs to treat malignant tumors with prolonged circulation time and excellent antitumor efficacy in vivo.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Yasuhiro Nakagawa, Kotaro Ushidome, Keita Masuda, Kazunori Igarashi, Yu Matsumoto, Tatsuya Yamasoba, Yasutaka Anraku, Madoka Takai, Horacio Cabral
Summary: Multi-arm star-shaped block copolymers consisting of poly(furfuryl glycidol) (PFG) and poly(ethylene glycol) (PEG) were developed for drug delivery. The block copolymers showed controlled sizes and effectively loaded and released model drugs. When injected intravenously, they exhibited prolonged blood circulation, indicating their potential as long-circulating nanocarriers.
Article
Polymer Science
Wasana Nonkrathok, Tatiya Trongsatitkul, Nitinat Suppakarn
Summary: In this study, the shape memory properties of poly(lactic acid) (PLA)/poly(ethylene glycol) (PEG) blends were improved by adding maleic anhydride-grafted poly(lactic acid) (PLA-g-MA) as a compatibilizer. The PLA-g-MA improved interfacial adhesion between phases and promoted chain entanglement, leading to enhanced mechanical properties and shape fixity performance. The compatibilized blend containing 2 wt% PLA-g-MA exhibited the best shape fixity and recovery performance.
Correction
Chemistry, Multidisciplinary
Jun Lu, Yao Xue, Rui Shi, Jing Kang, Chao-Yang Zhao, Ning-Ning Zhang, Chun-Yu Wang, Zhong-Yuan Lu, Kun Liu
Summary: This study proposes a new method for quantifying the grafting density of poly(ethylene glycol) on gold nanoparticles in nanomedicine. By employing a corrected experimental procedure, the density of poly(ethylene glycol) on the nanoparticles can be measured more accurately. This has important implications for drug delivery and biological effect studies in nanomedicine.
Article
Biotechnology & Applied Microbiology
Shin-Ichi Hachisuka, Jia Fong Chong, Tsuyoshi Fujiwara, Akiyo Takayama, Yumiko Kawakami, Shosuke Yoshida
Summary: The bacterium Ideonella sakaiensis, which degrades poly(ethylene terephthalate) (PET), has been found to produce enzymes that convert PET into its monomeric compounds. This study identified the enzymes involved in the metabolism of ethylene glycol (EG) in I. sakaiensis and demonstrated the unique alcohol oxidation pathway of the bacterium. Understanding these metabolic pathways is important for the potential engineering of I. sakaiensis for bioremediation and biorecycling purposes.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Applied
Hui Jiang, Hefang Wang, Xiaofei Ma, Kai Shao, Cui Wang
Summary: A series of HPW supported on AHFs modified H beta zeolite catalysts were prepared, which showed improved catalytic performance and stability compared to the untreated catalysts.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Polymer Science
Chao Wang, Junwei He, Liming Zou, Huajun Wang, Yanli Wang, Yan Vivian Li
Summary: PVA/IL composites were prepared using an ionic liquid (IL) and poly(vinylalcohol) (PVA). The plasticizing effect of IL on PVA was investigated using various analytical techniques. The results showed that IL could form hydrogen bonds with PVA, leading to changes in absorption peaks and thermal properties. The addition of IL improved the thermal stability and broadened the thermal processing window of the PVA/IL composites. However, the melt processability of the composites was not significantly improved.
POLYMER INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Gan Lin, Christina Cortez-Jugo, Yi Ju, Quinn A. Besford, Timothy M. Ryan, Shuaijun Pan, Joseph J. Richardson, Frank Caruso
Summary: In this study, a strategy based on the noncovalent coordination between PEG-polyphenolic ligands and transition metal ions was used to synthesize sub-100 nm PEG NPs with tunable size and morphology. The self-assembly of PEG-gallol/metal NPs was driven by metal-phenolic coordination, resulting in a series of metal-stabilized PEG NPs with different sizes and morphologies. The formation of the PEG-gallol/Mn-II NPs was predominantly driven by ionic interactions, leading to high biocompatibility and functionality, suggesting their potential for biomedical applications.
Article
Engineering, Environmental
Shruti Trivedi, Abhra Sarkar, Siddharth Pandey
CHEMICAL ENGINEERING JOURNAL
(2009)
Review
Chemistry, Physical
Abhra Sarkar, Shruti Trivedi, Gary A. Baker, Siddharth Pandey
JOURNAL OF PHYSICAL CHEMISTRY B
(2008)
Article
Chemistry, Physical
Abhra Sarkar, Shruti Trivedi, Siddharth Pandey
JOURNAL OF PHYSICAL CHEMISTRY B
(2008)
Review
Chemistry, Physical
Abhra Sarkar, Maroof Ali, Gary A. Baker, Sergey Y. Tetin, Qiaoqiao Ruan, Siddharth Pandey
JOURNAL OF PHYSICAL CHEMISTRY B
(2009)
Article
Chemistry, Multidisciplinary
Maroof Ali, Abhra Sarkar, Mohammad Tariq, Anwar Ali, Siddharth Pandey
Article
Thermodynamics
Abhra Sarkar, Siddharth Pandey
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2006)
Article
Chemistry, Analytical
Maroof Ali, Abhra Sarkar, Mrituanjay D. Pandey, Siddharth Pandey
ANALYTICAL SCIENCES
(2006)