The direct chemical vapor deposition (CVD) of transition metal dichalcogenides (TMDCs) on graphene or oxide (GO) allows for the scalable production van der Waals heterostructures (vdWHs). Herein, considering that CVD growth TMDCs depends largely surface property substrate, we compared chemically reduced GO (CrGO) and thermally (TrGO) as substrates to induce MoS2 without a seeding promoter. On m...

The unique properties of fluorine atom on nucleic acid backbone can offer stricking functional and structural features. In order to extend the biological applications L-type acid, we chemically incorporate fluoro-modification into 2′-position L-cytidine, obtain a series fluoro-modified L-DNAs/ L-RNAs. Our melting study indicates that 2′-fluoro-modification does not disrupt thermostabilities wil...

To integrate irreconcilable material properties into a single component, a new class of engineered materials termed “surface composites” has been developed. In this engineered material, the second phase is spatially distributed in the near surface regions, such that the phase composition is linearly graded as a function of distance from the surface. Surface composites are different from existin...

A novel anilato-based 3D ultramicroporous MOF is reported, displaying a significant balance of high CO 2 separation from :N and :CH 4 gas mixtures, thermal stability regenerability, challenge in the technology industry.

Beech sawdust was reacted with phthalic (PA) and maleic (MA) anhydrides for chemical modification. The influence of reaction time and anhydride amount was investigated. IR spectra gave evidence of wood esterification. Thermogravimetric investigation of chemically modified wood indicated a better thermal stability (mainly for wood treated with phthalic anhydride) in comparison with the untreated...

The results of petrographic studies structure formation and the phase composition developed aluminophosphate refractory adhesive compositions Al 2 O 3 *-Cr -H PO 4 at different temperatures with addition clay components are presented. It has been established that polarizing cristobalite tridymite AlPO4 crystals rhombic modification observed in fired samples, which thermally stable compounds pro...

The chemical modification of hydrophobic polymer matrices is an alternative way to elchange their surface properties. The introduction of sulfonic groups in the polymer changes the surface properties such as adhesion, wettability, catalytic ability, and adsorption capacity. This work describes the production and application of chemically modified polyvinyl chloride (PVC) as adsorbent for dyes r...

Polymethyl methacrylate (PMMA) was surface modified by tetrafluoromethane (CF4) plasma and its effect on the human breast cancer cells (MCF-7) adhesion and proliferation were investigated. The promotion of MCF-7 cell growth was positively and quantitatively related to the CF4 plasma modification as revealed by different characterizations. From ESCA analysis, it is revealed that CF4 plasma treat...