Graphene-based hybrid composites for cancer diagnostic and therapy.

The application of graphene-based nanocomposites for therapeutic and diagnostic reasons has advanced considerably in recent years due to advancements in the synthesis and design of graphene-based nanocomposites, giving rise to a new field of nano-cancer diagnosis and treatment. Nano-graphene is being utilized more often in the field of cancer therapy, where it is employed in conjunction with diagnostics and treatment to address the complex clinical obstacles and problems associated with this life-threatening illness. When compared to other nanomaterials, graphene derivatives stand out due to their remarkable structural, mechanical, electrical, optical, and thermal capabilities.

Effects of L-ascorbic acid (CHO: Vit-C) on collagen amino acids: DFT study.

Vitamin C plays a very important role in the repair of connective tissue, especially for sports whose training causes the most damage to this tissue. Therefore, many people believe that L-ascorbic acid (CHO: vitamin C) reduces the recovery time between sports exercises. The most abundant form of structural protein in the body is collagen.

DFT study on the removal of polyacrylamide by titanium dioxide nanoparticles/polyacrylonitrile (rTiO@PAC) composite in aqueous solutions.

Due to its high solubility in water, polyacrylamide is one of the most widely used materials for removing environmental pollutants by coagulation and flocculation. It is worth noting that the excess amount of this polymer in the wastewater is considered a secondary pollutant, which causes the blocking of the membranes and filters used in the treatment plant. Polyacrylonitrile (PAN) is one of the practical polymers used to remove this pollutant, and its performance can be increased by using physical modification and hydrolysis of this polymer (poly-acrylic carboxylate (PAC)).

Simulation and computational study of graphene oxide nano-carriers, absorption, and release of the anticancer drug of camptothecin.

The structure of nano-graphene oxide has attracted special attention in drug release due to its special properties such as hydrophilicity, special surface, biocompatibility, and the possibility of high loading of hydrophilic and hydrophobic drugs. In this study, after simulating and optimizing the structure of nano-graphene and then nano-graphene oxide (NGO), it was used to load the anti-cancer drug of camptothecin (CA) in an aqueous medium, and the optimal conditions for achieving maximum loading efficiency of the drug were investigated. Due to the structure of the drug, there are two forms, one form of lactone ring and the other carboxylate.

Phytoremediation and absorption isotherms of heavy metal ions by Convolvulus tricolor (CTC).

In recent years, use of plants for remediation of contaminated soils, especially removal of heavy metals, is considered. The current study tends to investigate the removal of lead and nickel ions by the Convolvulus tricolor (CTC), was grown for 30 days in different concentrations of lead and nickel ions. Then concentration of them in soil and different organs of the plant was measured by atomic absorption spectrometry.

Using of TiN-nanotubes and Cu-nanoparticles for conversion of CO2 to hydrocarbon fuels.

In this study, conversion of CO2 and H2O to CH3OH or CH4 on Cu-nanoparticles in TiN- nanotubes was optimized by density functional theory (DFT) methods. DFT optimized the intermediates and transient states using the GAMESS program package, but the structures, total energy, and thermodynamic properties were calculated by semi-empirical methods using ZINDO/1 at room temperature. The results show a sensitivity enhancement in resistance and capacitance when CO2 and H2O are converted to CH3OH and other products.