Plasma-boundaries floating in an ionized gas are usually negatively charged. They accumulate electrons more efficiently than ions which leads to the formation of a quasi-stationary electron film at the boundaries. We propose a physisorption-inspired quantum-kinetic description of the build-up of surface charges at inert plasma boundaries, where other surface modifications, in particular, implan...

Engineering flow systems operating under low pressures and/or at the micro/nano scale generally include a physically adsorbed gas layer next to surface. In this paper, we develop scattering kernel that accounts for effect of adsorption, arising from van der Waals interactions, on dynamics molecules impinging solid smooth surfaces. limit bulk density, surface adsorption becomes negligible and re...

Surface modification of biomaterials is a promising approach to control biofunctionality while retaining the bulk biomaterial properties. Perlecan major proteoglycan in vascular basement membrane that supports low levels platelet adhesion but not activation. Thus, perlecan bioactive for blood-contacting applications. This study furthers mechanistic understanding interactions with by establishin...

A series of benzene derivatives with different substituents adsorbed on graphene was investigated using a density-functional tight-binding method with a dispersion correction. Compared to benzene, the derivative with either an electron-withdrawing or -donating substituent exhibits stronger physisorption. Moreover, the steric size of the substituent is important in determining the adsorption str...

Thallium (I) was removed from aqueous solution by using gamma-alumina nanoparticles (?ANPs) materials as nano adsorbents. Varied experimental conditions such adsorbent dose, agitation time, initial concentration, pH, and temperature effects were carried out in batch view of the optimization thallium adsorption identification mechanisms system ?ANPs-Tl. The pH effect indicated a remarkable incre...

Arsenic exposure results in several human cancers, including those of the skin, lung, and bladder. As skin cancers are the most common form, epidermal keratinocytes (KC) are the main target of arsenic exposure. The mechanisms by which arsenic induces carcinogenesis remains unclear, but aberrant cell proliferation and dysregulated energy homeostasis play a significant role. Protein glycosylation...