A number of researchers are attempting to develop a biosensor based on terahertz sensing. Key to the realization of any biosensor system is the access of the target molecules to the sensor. In the case of using terahertz spectroscopy, there are limitations due to high attenuation by water and sensitivity levels. In order to have a significant response at THz frequencies generally requires a min...

Abstract: Xerogel is a typical porous material with large internal surface area, causing them to have significant gas adsorption. Adsorption performance was investigated determine the potential contribution of xerogel removing Hydrogen Sulphide (H2S) in this research. well-known energy-efficient approach for acid gases at low temperatures. H2S harms human health, such as headaches, eye irritati...

Self-assembled bolaamphiphilic perylene bisimide (PBI) containing an amino acid appended fluorescent semiconducting soft material (hydrogel) has been discovered at physiological pH. This new organic material based on self-assembled perylene bisimide appended amino acid-based bolaamphiphile (PBI-C11-Y) has been well characterized using various techniques including UV-Vis, fluorescence, X-ray dif...

Titanium dioxide nano-particles were synthesized via the sol-gel method using titanium butoxide as the precursor. Acid catalyzed and aged gels were dried under air to produce xerogels and under supercritical conditions to produce aerogels. Porous particles obtained were characterized using X-ray diffraction, SEM and BET analysis. Aerogel powder was found to have more favorable properties compar...

Abstract N-, Ni-, and graphene oxide (GO)-doped carbon xerogel were synthesized from melamine-resorcinol-formaldehyde gels by drying followed pyrolysis at 950 °C. The mass of nickel GO in xerogel, formed after carbonization was 5 1%, respectively. obtained product characterized scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction (XRD) Fourier transform in...

Kualitas dispersi bahan pengisi dalam karet sangat mempengaruhi sifat fisis dari vulkanisat karet. Metode baku pengujian silika (ISO 11345-2006) merupakan metode kualitatif sehingga hasilnya bersifat subyektif. Tujuan penelitian ini adalah menguji yang penggabungan mikroskop optik dan perangkat lunak ImageJ untuk mendapatkan secara kuantitatif. Alat dipergunakan mengevaluasi yaitu Arcs. Karet a...