Search results for “Polymer”

About 33 results in articles

Open Access Pub publishes peer-reviewed, free-to-read open-access articles. Showing articles matching Polymer — open any to read the full text, or download the PDF or XML.

Journal of Enzymes Open Access

Enzyme Immobilization on Polypropylene Film: A Role Model for Biocatalytic Polymer Membranes?

Dec 2023 DOI 10.14302/issn.2690-4829.jen-23-4799
Patrizia GartnerCorresponding author

Polymer electrolyte membrane (PEM) technologies hold promise for sustainable energy solutions, yet pinhole-related challenges persist. Our research introduces a novel biohybrid approach to self-healing, enhancing multiple healing cycles with minimal membrane disruption. Initial steps involve immobil…

Production of biodegradable polymer via graft copolymerization of gum Arabic and polyethylene glycol

Jun 2023
Rifkatu Kambel DogaraCorresponding author

The increasing demand for environmentally-friendly materials has led to a surge in research on the production of biodegradable polymers. In this study, we investigate the synthesis of a biodegradable polymer by graft copolymerization of gum Arabic (GA) and polyethylene glycol (PEG). GA, a natural po…

Insights on the Thermal and Physical Stability of the Modified Polymerizable Liposomes for Improved Photoactivity

Sep 2020 DOI 10.14302/issn.2835-513X.ijl-20-3454
Anju GuptaCorresponding author

We investigated physical steric and thermal stability effects induced by cholesterol and polyethylene glycol (PEG) in liposomes encapsulated with riboflavin. The composition of liposome was varied systematically to decipher the individual and combined effects of cholesterol and PEG on the stabilizat…

Composite Photopolymerization: Temperature Increase According to Light Source and Dentin Thickness

Jul 2016 DOI 10.14302/issn.2473-1005.jdoi-16-1080
Regina Guenka Palma-DibbCorresponding author

When a composite resin restoration is photopolymerized, a considerable amount of heat can be produced, potentially causing pulpal injury. Objective: Evaluate the influence of the type of light source and remaining dentin thickness on the temperature increase in the pulp chamber while curing composit…

Influence of Light Source and Photopolymerization Distance on Composite Resin Microhardness

Jun 2016 DOI 10.14302/issn.2473-1005.jdoi-16-1079
Regina Guenka Palma-DibbCorresponding author

The present study evaluated in vitro the influence of two light sources in composite resin microhardness in different distances of photopolymerization. Two light sources were used (halogen, LED) to photopolymerize the composite resin (Filtek Z250; Esthet-X) in different distances surface (1,2,3 and…

Preparation Physico-Chemical Characterization and Catalytic applications of Polymer Anchored Dimethylglyoxime Copper (II) Metal Complex

Nov 2014 DOI 10.14302/issn.2377-2549.jndc-14-391
Athar Adil HashmiCorresponding author

Oxidation of 1-Proponol, 1-butanol 1-Hexanol and benzyl alcohol using chloromethylated polystyrene (6% Cross link) DMG (Dimethylglyoxime) copper complex or Poly(S-DVB)-DMG-M Where M= Cu) as catalyst and tert.butylhydroperoxide(TBHP) as oxidant, was studied. The polymer supported Cu Complex was chara…

Carbapenem-resistant Enterobacterales at a quaternary public hospital in Durban, KwaZulu-Natal: Ascertaining the clinical and molecular paradigm shift following COVID-19

Oct 2026 DOI 10.14302/issn.2690-4721.ijcm-26-6425
Nitesh BrijlalCorresponding author

Background Extensive carbapenem use has resulted in an increasing occurrence of difficult-to-treat resistant gram-negative bacteria (DTR-GNB), such as carbapenem-resistant Enterobacterales (CREs). The international antimicrobial resistance (AMR) landscape was profoundly impacted due to varying antib…

Herpes Zoster Ophthalmicus Presenting with Suspected Orbital Myositis Following Recent Recombinant Zoster Vaccination

Jul 2026 DOI 10.14302/issn.2470-0436.jos-26-6357
Muhammad AwanCorresponding author

Herpes zoster ophthalmicus (HZO) is a manifestation of varicella-zoster virus (VZV) reactivation involving the ophthalmic division of the trigeminal nerve, carrying significant risk of vision-threatening complications. Diplopia in HZO is often attributed to cranial nerve palsy, although orbital myos…

A Review on Monkey Pox: Role of One Health Approach Against Monkey Pox

Oct 2023 DOI 10.14302/issn.2641-4538.jphi-23-4622
Tariku Geinoro AlleyoCorresponding author

The Ortho-poxvirus virus, which causes monkey pox, is a member of the Poxviridae genus. It was initially found in primates. In 1970, the Democratic Republic of the Congo reported the first instance of monkey pox. From there, it spread to a number of countries both inside and outside of Africa. There…

Camel Brucellosis in Ethiopia: Seroprevalence and Associated Risk Factor

Oct 2023 DOI 10.14302/issn.2575-1212.jvhc-23-4532
Sultan Abda NejaCorresponding author

Camels are a significant source of income for nomadic populations in many developing countries, including Ethiopia. Camels are well adapted to dry and semi-dry regions, providing income, food security, and transportation. However, camel production and productivity are constrained by infectious disea…

Detection of carbapenem resistance mechanisms among Avian Pathogenic Escherichia coli (APEC) isolated from broiler chickens

May 2023 DOI 10.14302/issn.2575-1212.jvhc-23-4521
Aya El- shaerCorresponding author

Background The emergence and spread of carbapenem-resistant gram-negative bacteria pose a serious threat to human health. Currently, little is known about the molecular mechanisms underlying carbapenem -resistance and their prevalence among APEC in Egypt. The aim of this study was to detect APEC in…

Biotechnological application of Cyanobacteria in, Agriculture, Medicine and Environment

Jul 2022 DOI 10.14302/issn.2691-6622.ijar-22-4221
Tefera TadesseCorresponding author

Cyanobacteria are considered as one of the important group of organisms having significant ecological, industrial, and biotechnological importance. Cyanobacteria have gained a lot of atten ion in recent years because of their potential applications in biotechnology. This review presents an overview…

Cytokine Expression in Peripheral Blood Mononuclear Cell Cultures Obtained from Cattle with Different Stages of Natural Mycobacterium bovis Infection

Dec 2021 DOI 10.14302/issn.2575-1212.jvhc-21-4034
Fernando Díaz-Otero,Corresponding author CENID-Salud Animal e Inocuidad. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP). Carretera México-Toluca, Km. 15.5, C.P. 05110, Ciudad de México, México.

In bovine tuberculosis (bTB), cellular, humoral, or both types of immune responses have been observed. The purpose of this study was to examine the immune status of tuberculous cows based on the differential cytokine gene expression associated with Th1 (IFN-γ, IL-2), or Th2 (IL-4, IL-10) responses.…

Colored Anti-Hail Nets Modify the Ripening Parameters of Nebbiolo and a Smart NIRS can Predict the Polyphenol Features

Sep 2021 DOI 10.14302/issn.2639-3166.jar-21-3955
Giorgio MasoeroCorresponding author

In the cultivation of vines the risk of hail appears to be increasing with the ongoing climate change. The use of protective plastic nets is spreading, but there is little knowledge on the additional processing costs and on the phenological and qualitative consequences, moreover, as depending on dif…

Evaluation of Acacia- Guar Gum Combination as Delayed Release Coating Former on Solid Placebo Tablets

Feb 2021 DOI 10.14302/issn.2328-0182.japst-21-3700
Suad Y. AlkaribCorresponding author

Objectives The present study addresses evaluation of acacia-guar gum combination as an enteric former for tablet coating aiming to add knowledge on how develop the ability of enteric forming ability of acacia-guar combination. Methods Five formulations of enteric coating solution incorporating guar…

Preparation of Microwave Multi-Adsorbent Nanocomposites Based on Copper, Iron Carbonyl, Carbon Nanofiber, Graphite Nanoflake and Polypyrrole

Nov 2020 DOI 10.14302/issn.2689-2855.jan-20-3616
Seyed Hossien HosseiniCorresponding author

The composites of Cu, Carbonyl iron (CI), carbon nanofiber (CNF), graphite nanoflake (GNF)/polypyrrole (PPy) and [(Cu-CI-CNF-GNF) 0.5-PAA]-PPy0.5 were synthesized via different methods by in-situ polymerization on the surface of nanoparticles (NPs) with core-shell structure. This paper describes a m…

Association of BsmI and ApaI Polymorphisms of the Vitamin D Receptor Gene with Dyslipidemia in Patients with Coronary Artery Disease.

Mar 2020 DOI 10.14302/issn.2374-9431.jbd-20-3195
E.G SergeevaCorresponding author FIRST St. Petersburg state medical University named after academician I. P. Pavlov

Purpose The goals of the present study were to assess the genotypic and allelic distribution of Bsm-I (rs1544410) and Apa-I (rs7975232) polymorphisms of the vitamin D receptor (VDR) gene in coronary artery disease (CAD) patients in comparison to control patients of the same age without CAD and to de…

D Allele and DD Genotype of I /D Polymorphism in The ACE Gene in Patients with Hypertension, Stroke And Cancer Prostate In Libreville: A Concern Given The High Frequencies of these Signatures in Gabonese Population

Dec 2019 DOI 10.14302/issn.2326-0793.jpgr-19-3114
Benjamin OllomoCorresponding author

Background During the last two decades, the polymorphism of Angiotensin-Converting Enzyme (ACE) gene has been extensively studied among different human populations. In humans, several studies have shown the relationship between this polymorphism and the risk of many serious diseases with a heavy bur…

L162v Polymorphism of Par-Α Gene, A603g Polymorphism of Tissue Factor Gene and Risk of Coronary Heart Disease in Russian Population

Jun 2019 DOI 10.14302/issn.2374-9431.jbd-19-2788
E.G. SergeevaCorresponding author

Purpose The goal of this study is to determine the association of L162V polymorphism of PPAR-alpha gene, A603G polymorphism of tissue factor gene and the risk of coronary heart disease development in Russian population.   Materials and Methods A clinical and genetic study of 414 patients with CHD an…

Application of Acrylates in Enhanced Oil Recovery

Apr 2019 DOI 10.14302/issn.2377-2549.jndc-19-2720
A.N. El-hoshoudyCorresponding author

Currently, enhanced oil recovery (EOR) acquire increased attention to recover more residual oil trapped after the primary and secondary process in petroleum reservoirs. EOR comprise different technologies involving chemical, thermal, miscible flooding techniques. Chemical flooding by the polymer is…

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