Aluminosilicate gel precursor having mullite composition was synthesized from inorganic salts of aluminum and silicon by employing the sol-gel method. Chemical analysis, surface area and bulk density measurements were performed to characterize the dried gel. The course of the mullitization was examined by FT-IR analysis which confirmed the diphasic nature of the gel. ...

In heterogeneous microfluidic immunosensors, the diffusion boundary layer produced on sensing area represents a critical factor that limits biosensor performance. A three-dimensional simulation using finite element method binding reaction kinetics of C-reactive protein (CRP) has been performed. We present new based novel reaction-surface design without and with electrothermal force. Two surface...

Biomass derived from Tamarindus indica partially activated seed coat was investigated for the removal of nitrate ions from aqueous solutions. Batch experiments were performed to evaluate the parameters like pH, contact time, sorbent dose and initial nitrate concentration. pH of the solution played vital role. The maximum sorption observed at pH=7, sorbent dose 300mg, contact time at 120min, ini...

• The esterification process of Carica papaya seeds conversion to biodiesel was optimized. Maximum yield 80% obtained at 600C. follows the first-order degree kinetics with K 5.63 × 10-2 kmol/Lmin. Activation energy 18024.7 kJmol optimum conditions. biofuel satisfied ASTM (D6751-02) specifications and complied EN 141215 standards. Optimization alkali transesterification pawpaw seed extract using...

The integration of gene delivery technologies with electrospun nanofibers is a versatile strategy to increase the potential of gene therapy as a key platform technology that can be readily utilized for numerous biomedical applications, including cancer therapy, stem cell therapy, and tissue engineering. As a spatial template for gene delivery, electrospun nanofibers possess highly advantageous ...

Using first-principles total energy calculations within density functional theory, we investigate the energetics, kinetics, and transport properties of Ti on clean and hydrogen-terminated diamond (100)-2x1 surfaces at increasing Ti coverages. On a clean surface, an isolated Ti adatom prefers to adsorb on top of a C-C dimer row, and also diffuses faster along the dimer row direction. As the Ti c...

There seems some underlying technological interest in recent developments (1-9) in palladium alloy systems because of the possibilities of developing palladium alloys with improved characteristics for use as diffusion membranes for hydrogen purification and allied purposes (10). In addition to the important issues of surface kinetics and membrane thickness, other key factors for improved diffus...