Materials Literature
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Palmitoyl glycol chitosan is an amphiphilic polymer with a hydrophilic backbone (made up of glycol chitosan molecules) bearing a pendant hydrophobic chain palmitic acid attached at the C-2 position on its hydrophilic back bone. Quaternary ammonium palmitoyl glycol chitosan is a quaternised derivative of the palmitoyl…
An alternative to a needle for penetrating cells may be found in the precise and forceful fluid jet created by two bubbles expanding and collapsing in tandem.
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Details of the design, fabrication, and characterization of silicon-on-insulator (SOI) nanophotonic devices are presented.Shallow etched rectangular profile gratings are demonstrated to couple free space light into planar SOI waveguides with efficiencies exceeding 20%.Parabolic planar solid immersion mirror (PSIM) cou…
Telah dilakukan lanjutan penelitian berupa uji kekerasan Vickers dan karakterisasi struktur mikro functionally graded materials (FGMs) α-Al2O3/Al2TiO5-MgO menggunakan vickers hardness tester, SEM EDX. FGMs disintesis dari serbuk α-Al2O3 sebagai prakeramik dengan MgO (0 wt%, 2 wt%, 5 wt%) sebagai penstabil yang kemudia…
Fiberglass Reinforced Plastic (FRP) adalah salah satu material yang sering digunakan sebagai alternatif pengganti baja pada pembangunan kapal. Sifat Naturfiber Reinforced Plastic (NRP) yang ringan, tahan terhadap korosi dan lebih ramah lingkungan menjadikan material ini diminati sebagai bahan alternatif dalam pembuata…
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Nucleic acid biosensors have been found to have interesting possibilities for applications in various fields including environmental and medical screening. The two types of analysis used for the nucleic acid biosensors are : (a) detection of genotoxicants/ DNA damage (b) detection of DNA hybridization. For the detecti…
In recent years, coinage metal nanoparticles have emerged as materials with largest quadratic optical nonlinearity. Their first hyperpolarizabilities (β) are very high (105-106 x 10-30 esu) but such large values were quite unexpected because of their apparently centrosymmetric bulk structure. Only a small second harmo…
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The oscillation of the four-probe electric resistance of monatomic carbon chains as a function of electron energy was theoretically analysed on the basis of non-equilibrium Green's function formalism and the self-consistent charge density-functional tight-binding method. We constructed spectra from the spacing of the…
This paper has been withdrawn by the author due to some experimental mistakes. In this paper, we reported that C66, C44 and (C11-C12)/2 show remarkable softening toward the structural transition temperature TS. The data reported in this paper were acquired using the ultrasonic frequency lower than 25 MHz. Recently, we…
Abstract : Analytical solutions for the impact and blast response of naval composite structures were developed in this research grant. Finite element analysis using ABAQUS and experimental results found in the open literature were also considered in conjunction with the work. Four problems, in particular, were address…
The 11th Pacific Polymer Conference brought together experts in all fields of polymer science. In this issue some of the recent advances presented at the meeting are highlighted.
We present a spin-boson theory for magnetotransport in organic semiconducting materials, on the basis of a coupling between charge carriers' spin and a local bosonic environment, which is shown to be an irreducible ingredient in understanding of the anomalous organic magnetoresistance (OMR). Among those composing this…
FeTe0.5Se0.5 superconducting wires have been fabricated using ex-situ PIT method with an Fe sheath. Among the other FeAs-based superconductor, FeTe0.5Se0.5 has great advantage for application due to binary composition and less toxic. Surprisingly, superconducting current was observed in the as-fabricated wire without…
Considerar as seguintes alterações: Página 29: O magnetismo nos materiais surge da propriedade fundamental do elétron, o spin, que é o seu momento angular intrínseco, juntamente com a contribuição advinda de seu momento angular orbital.Estas grandezas representam dois dos quatro números quânticos... Página 31: Figura…
The effect of doping on electronic and other related properties of PbO-type FeSe1-xTex has been investigated theoretically using density functional method. The elastic properties for mono- and poly-crystalline FeSe1-xTex system are predicted for the first time and the results discussed. Analysis of doping dependent ba…
Complexes that have polisulphurated ligands represent a very important class of coordination compounds due to their several applications as high-conducting charge transfer salts. In the present work, [E+(MNT)2](n-4) complexes (E= Sb+3, In+3, Bi+3) ; MNT= 1,2-dicyanoethene-1,2-dithiolate, using the tetrabutilammonium c…
Surface enhanced Raman scattering (SERS) has been observed using a sapphire fiber coated with gold nano-islands for the first time. The effect was found to be much weaker than what was observed with a similar fiber coated with silver nanoparticles. Diameter-modulated sapphire fibers have been successfully fabricated o…