Grafting high content of imidazolium polymer brushes on graphene oxide for nanocomposite membranes with enhanced anion transport

Publication date: Available online 9 December 2019Source: Reactive and Functional PolymersAuthor(s): Jianshe Wang, Huiling Chen, Yingying Ma, Huijuan Bai, Benbing Shi, Chunli Hou, Jingtao Wang, Yifan LiAbstractPolymer functionalized nanoparticles have attracted burgeoning interests in designing and fabricating novel nanocomposite membranes for fast transport of ions or small molecules. Herein, imidazolium polymer coated graphene oxides (AImGOs), bearing different length of polymer brushes, are synthesized via ATRP technique, and thus a very high weight percentage of imidazolium polymer brushes on GO (up to 89.5%) is acquired, corresponding to a high IEC value up to 65.5 mmol g−1. The as-synthesized AImGOs are then dispersed into poly(vinyl alcohol) (PVA) to prepare nanocomposite membranes. The polymer brushes coated on AImGOs render better interfacial compatibility and filler dispersity. The large specific surface area and high aspect ratio of GO contributes to the enhancement of swelling resistance and mechanical stability of membranes. More importantly, the imidazolium polymer brushes on AImGOs endow the membrane with efficient OH– conduction ability due to the high loading of OH– hopping sites, the flexible chain, and the intrinsic large surface area of GO, demonstrating that efficient OH−-hopping pathways are constructed along the interface between PVA matrix and AImGO. By lengthening the polymer brushes, increasing AImGO content, and adopting ...
Source: Reactive and Functional Polymers - Category: Chemistry Source Type: research

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Authors: Yildirim M, Kaplan M, Duzenli T, Tanoglu A, Kucukodaci Z, Onal Tastan Y, Cakir Guney B, Serindag Z Abstract Background: To investigate the protective efficacy of pentoxifylline through biochemical parameters and histopathological scores in a caerulein- and alcohol-induced experimental model of chronic pancreatitis in rats.Methods: A model of chronic pancreatitis with caerulein and alcohol was created in female rats of the genus Sprague Dawley. Pentoxifylline was administered in doses of 25 mg/kg (low dose) and 50 mg/kg (high dose) as a protective agent. Each group contained 8 animals. The gro...
Source: Scandinavian Journal of Gastroenterology - Category: Gastroenterology Tags: Scand J Gastroenterol Source Type: research
Publication date: Available online 16 January 2020Source: Journal of Food EngineeringAuthor(s): Luís Marangoni Júnior, Léa Mariza de Oliveira, Paula Fernanda Janetti Bócoli, Marcelo Cristianini, Marisa Padula, Carlos Alberto Rodrigues AnjosAbstractThe effect of high-pressure processing on the morphological surface, thermal and mechanical properties of three PA and EVOH based multilayer flexible packaging materials were evaluated. LDPE/PA/LDPE, LDPE/EVOH/LDPE and PET/LDPE/PA/EVOH/PA/LDPE packaging samples were processed under three different conditions (600 MPa/25 °C/10 min, 600 MPa/90 °C...
Source: Journal of Food Engineering - Category: Food Science Source Type: research
Most people know about the damaging effects that binge drinking can bring to someone’s life. Loss of enjoyment of life, losing family relationships, financial and career struggles, homelessness, and legal consequences are just the tip of the iceberg. However, it can be more difficult to realize the long-term effect of binge drinking on the body, because you cannot always see it. Frequent binge drinking poses many dangerous health risks, and many of them can lead to death. Facts on Long-Term Effect of Binge Drinking on the Body For men, binge drinking is defined as consuming five or more drinks within about two hour...
Source: Cliffside Malibu - Category: Addiction Authors: Tags: Alcohol Alcohol Rehab Information Alcoholism alcohol abuse alcohol dependence alcohol treatment alcohol treatment center binge binge drinking Source Type: blogs
With all the advances in modern medicine, it can be easy to wonder if there is a medication to stop drinking. Unfortunately, getting sober from alcohol isn’t as easy as simply taking medication. In addition to medication, therapy is required for the best long-term results, as well as support from loved ones and ongoing aftercare. However, there are some medications to help along in the process to stop withdrawal symptoms, block cravings, and create an aversion to alcohol. It is important to not rely only on medication to stop drinking. A commitment to behavioral therapy, holistic therapy, family involvement, self-ca...
Source: Cliffside Malibu - Category: Addiction Authors: Tags: Alcohol Alcohol Rehab Information Alcoholism Detox Resources for Alcohol and Drugs/Opiates alcohol abuse alcohol dependence alcohol detox alcohol treatment alcohol treatment center alcohol treatment facility Source Type: blogs
Alcohol is a toxic substance that can wreak havoc on the body, brain, central nervous system, internal organs, behavior patterns, emotions, and more. Long-term alcohol abuse can lead to serious damage to the body which, in some cases, can be irreversible and lead to certain chronic conditions. Detoxing from alcohol can present its own set of dangerous withdrawal symptoms and, as such, it is important to know what you need when you are ready to safely detoxify alcohol from your system. Preparation to Detoxify Alcohol When you’re ready to detoxify alcohol from your system, it is important that you and your loved ones ...
Source: Cliffside Malibu - Category: Addiction Authors: Tags: Alcohol Alcohol Rehab Information Alcoholism Detox Resources for Alcohol and Drugs/Opiates alcohol abuse alcohol dependence alcohol detox alcohol treatment alcohol treatment center alcohol treatment facility alcohol use Source Type: blogs
This study provides a strategy to design a non-polluting, biodegradable, biocompatible film with excellent mechanical properties that can be used in UV-visible barriers and has potential applications in thermal insulating materials for food preservation.Graphical abstract
Source: Carbohydrate Polymers - Category: Biomedical Science Source Type: research
Publication date: Available online 16 January 2020Source: Process BiochemistryAuthor(s): Karen Rodríguez, Claudia BernalAbstractBacillus subtilis lipase A (BSLA) has been extensively studied through protein engineering; however, its immobilization and behavior as an insoluble biocatalyst have not been extensively explored. In this work, for the first time, a direct immobilization of recombinant BSLA from microbial culture supernatant was reported, using chemically modified porous with different electrostatic, hydrophobic, hydrophilic, and hydrophilic−hydrophobic enzyme-support interactions. The resulting bioca...
Source: Process Biochemistry - Category: Biochemistry Source Type: research
Chem. Commun., 2020, Accepted Manuscript DOI: 10.1039/C9CC09449K, CommunicationChenxi Wang, Yuan Liu, Chunyan Bao, Yuan Xue, Yaowu Zhou, Dasheng Zhang, Qiuning Lin, Linyong Zhu Here we report the use of 2-nitrobenzyl alcohol (NB) as a photoreactive group with amine selectivity and explore its applications for photoaffinity labeling and crosslinking of biomolecules. This work confirms... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Chem. Commun. latest articles - Category: Chemistry Authors: Source Type: research
CONCLUSION: The incidence of colorectal cancer has been increasing in Korea. Colonoscopy screening was a protective factor for colorectal cancer, and active use of colonoscopy may reduce incidence. Early diagnosis and care are important, particularly for the high-risk group. PMID: 31937075 [PubMed]
Source: Annals of Coloproctology - Category: Gastroenterology Tags: Ann Coloproctol Source Type: research
Alcohol abuse and alcohol dependence are key factors in the development of alcohol use disorder, which is a pervasive societal problem with substantial economic, medical, and psychiatric consequences. Although our understanding of the neurocircuitry that u...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Alcohol and Other Drugs Source Type: news
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