Abstract A scalable approach for the mass production of chemically modified graphene has yet to be developed, which holds key large‐scale stable colloids optical electronics, energy conversion, and storage materials, catalysis, sensors, composites, etc. Here, a facile fabricating covalently its polymer nanocomposites is presented. The method involves: i) employing common furnace, rather than furnace installed with quartz tube operated in inert gas as required previous studies, treat...

In spite of extensive studies conducted on carbon nanotubes and silicate layers for their polymer-based nanocomposites, the rise graphene now provides a more promising candidate due to its exceptionally high mechanical performance electrical thermal conductivities. The present study developed facile approach fabricate epoxy–graphene nanocomposites by thermally expanding commercial product followed ultrasonication solution-compounding with epoxy, investigated morphologies, properties,...

The interface is well known for taking a critical role in the determination of functional and mechanical properties polymer composites. Previous research has focused on utilising reduced graphene oxide that limited by low structural integrity, which means high fraction needed to produce electrically conductive By using 4,4′-diaminophenylsulfone, we this study chemically modified high-structural integrity platelets (GnPs) 2–4 nm thickness, covalently bonded GnPs with an epoxy matrix,...

Rather than using graphene oxide, which is limited by a high defect concentration and cost due to oxidation reduction, we adopted cost-effective, 3.56 nm thick platelets (GnPs) of structural integrity melt compound with an elastomer-ethylene-propylene-diene monomer rubber (EPDM)-using industrial facility. An elastomer amorphous, chemically crosslinked polymer generally having rather low modulus fracture strength but strain in comparison other materials; upon removal loading, it able return...

Graphene platelets (GnPs) are a class of novel 2D nanomaterials owing to their very small thickness (∼3 nm), high mechanical strength and electric conductivity (1460 S cm−1), good compatibility with most polymers as well cost-effectiveness. In this paper we present low-cost processing technique for producing modified GnPs an investigation the electrical properties resulting composites. After dispersing in solvent N-methyl-2-pyrrolidone, long-chain surfactant (Jeffamine D 2000, denoted J2000)...

Graphene oxide (GO) nanosheets were attached to the polyamide selective layer of thin film composite (TFC) forward osmosis (FO) membranes through a poly l-Lysine (PLL) intermediary using either layer-by-layer or hybrid (H) grafting strategies. Fourier transform infrared spectroscopy, zeta potential, and thermogravimetric analysis confirmed successful attachment GO/PLL, surface modification enhancing both hydrophilicity smoothness membrane's demonstrated by water contact angle, atomic force...

Plasma polymerisation is a technologically important surface engineering process capable of depositing ultra-thin functionalised films for variety purposes. It has many advantages over other processes, including that it completely dry, can be used complex geometries, and the physico-chemical properties film tailored through judicious choice processing conditions. Despite this, mechanisms growth are largely unknown, current models based on purely chemical arguments. Consideration some basic...

In this communication we demonstrate that in the initial stages of deposition ultrathin plasma polymer films, both growth rate and chemical composition films are affected by nature substrate which is an important question surprisingly neglected until now.

Abstract Ultrathin functional coatings deposited by plasma polymerization have utility in nano‐ and microtechnologies, however, until now very little has been reported to validate the widely held view that these can be onto any type of substrate, without substrate influence. In order ascertain role early stages growth we address rate chemistry polymer from two nitrogen‐ oxygen‐containing monomers during first deposition gold thiol MUA‐coated surfaces. SPR thickness measurements XPS analyzes...

Graphene oxide (GO) nanosheets have antibacterial properties that been exploited as a biocidal agent used on desalination membrane surfaces in recent research. Nonetheless, improved strategies for efficient and stable attachment of GO onto the surface are still required this idea to be commercially viable. To address challenge, we adopted novel, single-step modification approach using tannic acid cross-linked with polyethylene imine versatile platform immobilize polyamide thin film composite...

Flexible, free-standing, high-performance supercapacitor electrodes were created by the development of a conducting composite hydrogel where graphene oxide sheets were<italic>in situ</italic>reduced polyaniline.

The influence of protein and molecular, ground state oxygen (O2) on the plasma generation, transport reactive nitrogen species (RONS) in tissue are investigated. A target, comprising a 1 mm thick gelatin film (a surrogate for real tissue), is placed top 96-well plate; each well filled with phosphate buffered saline (PBS, pH 7.4) containing one fluorescent or colorimetric reporter that specific three RONS (i.e., H2O2, NO2−, OH•) broad spectrum (2,7-dichlorodihydrofluorescein). helium cold...

Abstract The manner by which plasma polymers grow in the very first stages of deposition is a topic has been almost overlooked. We show using atomic force microscopy (AFM) and X‐ray photoelectron spectroscopy (XPS) that early there are significant differences way from two amine‐containing compounds onto silicon wafers. By AFM it shown films grown n ‐heptylamine (HA) initially ‘island‐like’ growth before continuous smooth film formed. In contrast, allylamine smoothly earliest stages. XPS data...

Smart materials that can sense and respond to changes in the environment are of interest numerous diverse applications. In this paper, we report gradient surfaces where wettability surface potential pH. The gradients produced by controlling concentration amine carboxyl acid groups across surface. response pH was studied water contact angle measurements. determined atomic force microscopy-based These studies showed at low from "no charge" end a positive charge end. At high changed negative...

Lipopolysaccharides (LPS) are the major component of outer membrane all Gram-negative bacteria and some cyanobacteria released during growth cell death. LPS pose a potential health risk in water, causing acute respiratory illnesses, inhalation fever, gastrointestinal disorders. The need for rapid accurate detection has become priority to facilitate more timely efficacious intervention and, hence, avoid unsafe water distribution. In this context, porous silicon (pSiM)-based electrochemical...