For many people, learning about new things such as a second language is an adventure and very fulfilling. Dopamine levels boost in the brain to help us maintain the new information. However, if dopamine levels are low, the new information literally goes in and out of the brain and is lost. This work postulates disability modeling function of dopamine as a neurochemical transporter in the brain for learning language after adsorption on Boron Nitride (BN) and Titanium dioxide (TiO2 Anatase) surfaces through the theoretical methods. Thermodynamic data and vibrations can identify modes of dopamine by comparison between dopamine-Boron Nitride and dopamine-TiO2 clusters.

Porous ferroscaffolds have interesting applications in bioengineering such as tissue engineering, controlled drug release and bioimaging. In this work, the conjugated fluorescein isothiocyanate (FITC) magnetite (Fe3O4) nanoparticles (FMNP) were embedded in the hydrogel scaffold (FFS) to study the effect of static magnetic field on swelling for drug release purpose as well as to serve as an optical marker to monitor visually the swelling of FFS for bioimaging. FFS was characterized using transmission electron microscopy (TEM), x-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), vibration scanning magnetometry (VSM), UV-VIS absorption spectroscopy and laser-induced fluorescence spectroscopy (LIFS). The LIF exhibited a loss of fluorescence intensity of about 11% and 18% corresponding to laser irradiation time of 10 and 30 s respectively due to quencher fluorescent molecule complex formation. The magnetoelasticity of FFS was studied using He-Ne laser probe beam-magnet experiment. The swelling factor was found to be relatively small, nonetheless it was visually observable due to argon laser-induced fluorescence.

Copper nanoparticles have been synthesized by the reduction of copper ions using plant leaf extracts of khat (Catha edulis), castor oil (Ricimus communis) and derjihara (Prosopis juliflora) as reducing and stabilizing agents. The progress of bio-reduction of Cu2+ ions generating metallic copper was monitored by observing the absorption peak around 566 nm, characteristic of surface plasma resonance of copper. The X-ray diffraction (XRD) analysis revealed the face centre cubic (fcc) crystal structure of synthesized copper nanoparticles with average crystallite size within 20 to 30nm. The FTIR spectra suggests that copper nanoparticles are stabilized possibly by proteins molecules present in the leaf extract. The synthesized copper nanoparticles have shown anti-microbial activity against both gram-negative, Escherichia coli, as well as gram-positive, Staphylococcus aureus bacteria. The synthesized copper nanoparticles may be tried, clinically, for their antibacterial, cytotoxic, and antibiofilm efficacy or may be used as copper nanoparticles-containing antimicrobial hydrogel membrane for the treatment of wounds.