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Drug: Polyethylene Glycol
Nutrition: Organic

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Total 71 results found since Jan 2013.

Current advances and emerging trends in sustainable polyhydroxyalkanoate modification from organic waste streams for material applications
This study focuses on the development of sustainable, efficient, and cutting-edge methods, such as advanced bioprocess engineering, novel catalysts, and advances in materials science. Chemical techniques, such as epoxidation, oxidation, and esterification, have been employed for PHA functionalization, while enzymatic and microbial methods have indicated promise. PHB/polylactic acid blends with cellulose fibers showed improved tensile strength by 24.45-32.08 % and decreased water vapor and oxygen transmission rates while PHB/Polycaprolactone blends with a 1:1 ratio demonstrated an elongation at break four to six times highe...
Source: International Journal of Biological Macromolecules - September 11, 2023 Category: Biochemistry Authors: Nausheen Jaffur Gopalakrishnan Kumar Pratima Jeetah Seeram Ramakrishna Shashi Kant Bhatia Source Type: research

Enhanced persulfate activation by ethylene glycol-mediated bimetallic sulfide for imidacloprid degradation
This study not only provides a theoretical foundation for catalyst design, but also promotes the industrial application of bimetallic sulfide Fenton-like catalysts for water management.PMID:37659508 | DOI:10.1016/j.chemosphere.2023.140032
Source: Chemosphere - September 2, 2023 Category: Chemistry Authors: Mengyun Jiang Zhongjun Xu Xirong Zhang Zizhen Han Tingting Zhang Xiaochun Chen Source Type: research

Heterogenous electro-Fenton degradation of sulfamethoxazole on a polyethylene glycol-coated magnetite nanoparticles catalyst
We report the preparation and application of poly (ethylene) glycol (PEG) coated magnetite nanoparticles (MNPs) catalyst for the heterogeneous electro-Fenton (HEF) degradation of sulfamethoxazole in real wastewater PEG-coated MNPs of four MNP:PEG ratios were synthesised using the co-precipitation method. The synthesised MNP were characterised using FTIR, XRD, EDX, TEM, and CHN elemental analysis. It was observed that the coating of MNP with PEG influences the nanoparticle size, agglomeration tendencies and catalytic efficiency of MNPs properties in the HEF degradation process. A 1:1 optimal MNP:PEG catalyst yielded 91% sul...
Source: Chemosphere - August 2, 2023 Category: Chemistry Authors: Charles Muzenda Oluchi V Nkwachukwu Kehinde D Jayeola Orpah Zinyemba Minghua Zhou Omotayo A Arotiba Source Type: research

Polymeric Networks Derived from UV-Curing of Bio-Based Polyesters for Methyl Violet Removal
In this study, firstly, the syntheses and characterizations of biobased polyesters with different acid values obtained from the condensation reaction of biobased itaconic acid and polyethylene glycol were investigated. Then, UV curing was applied to form polymeric networks as adsorbent material from these polyesters containing different acids. Fourier transform infrared spectrometry (FTIR), Nuclear Magnetic Resonance Spectroscopy (NMR), X-ray Photoelectron Spectroscopy (XPS), Gel Permeation Chromatography (GPC) and scanning electron microscope (SEM) were used for the characterization of polymeric networks. The effects of t...
Source: Environmental Science and Pollution Research International - July 7, 2023 Category: Environmental Health Authors: Elif Cerraho ğlu Kaçakgil Aleyna Turanl ı Cemil Dizman Source Type: research

Ratiometric singlet oxygen self-detecting and oxygen self-supplying nanosensor for real-time photodynamic therapy feedback and therapeutic effect enhancement
Talanta. 2023 Mar 29;259:124493. doi: 10.1016/j.talanta.2023.124493. Online ahead of print.ABSTRACTIntegration of singlet oxygen (1O2) detection that provides necessary therapeutic feedback into nanotheranostics for hypoxic tumor photodynamic therapy (PDT) is desirable but still challenging. Herein, we report a nanosensor (denominated PAPD) by combining dual-channel ratiometric sensing and oxygen-augmenting strategies, which synergistically realizes real-time 1O2 self-detection, O2 self-supply and enhanced phototherapy. PAPD nanosensor is constructed by encapsulating anthracene-based 1O2 sensitive fluorophore (DPA) into po...
Source: Talanta - April 2, 2023 Category: Chemistry Authors: Ying Yang Ning Li Yanyan Zhu Jianshu Li Shumeng Li Xiaohong Hou Source Type: research

Electrochemical oxidation of chloramphenicol by modified Sm-PEG-PbO < sub > 2 < /sub > anodes: Performance and mechanism
Chemosphere. 2023 Mar 29:138518. doi: 10.1016/j.chemosphere.2023.138518. Online ahead of print.ABSTRACTChloramphenicol (CAP) is used extensively in industry and daily life, but its abuse has seriously affected the environment and public health. In this paper, a new composite PbO2 electrode was obtained through the modification Sm and polyethylene glycol (PEG), and an electrocatalytic oxidation technology of CAP degradation was investigated. The results showed that the catalytic degradation ability and industrial service life of the PEG-Sm-PbO2 composite electrode were significantly enhanced. Co-doping inhibited the growth ...
Source: Chemosphere - March 31, 2023 Category: Chemistry Authors: Chaoyang Zhang Conghao Gao Shumin Yang Xin He Yue Chen Xiao Qin Yulin Tang Source Type: research

π -Extended BTD derivatives: synthesis, photophysical properties, and applications in biological systems imaging for discriminating living and dead cells
Chem Asian J. 2023 Mar 30:e202300038. doi: 10.1002/asia.202300038. Online ahead of print.ABSTRACTBenzothiadiazole (BTD) is one of the popular compounds for organic electronic devices, organic synthesis, and fluorescent probes. Here, benzothiadiazole derivatives were successfully synthesized by heck coupling reaction, which exhibited the the advantages of simplicity and efficiency, wild substrate csope, easily available substrates and high yield. The fluorescent probe BTDAr-PEG targeting lipid droplets was successfully prepared by the nucleophilic substitution reaction between the heck coupling reaction product 3h and Amino...
Source: Chemistry, an Asian Journal - March 30, 2023 Category: Chemistry Authors: Congcong Li Jia-Xin Cao Lin Wang Xingxiang Ji Jian-Yong Wang Source Type: research