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Breast cancer is the most common cancer among women and the cancer that causes the most deaths after lung cancer. Tamoxifen has long been used for the treatment of breast cancer in different stages of the disease; however it presents several side effects. The use of delivery systems has been proposed to minimize its side effects, especially hepatotoxicity, and to improve its bioavailability, hence...
In modern society, the application of biosensor gains its popularity in various fields such as biomedical diagnostic, food technology, cancer therapies, pharmaceutics and environmental monitoring. New biosensing technology is needed to accommodate low cost sensor, able to give fast response, versatile technique and eventually more stable products. During the past decades, various researches work focusing...
This paper investigated the effect of different doped n-type silicon on pores formation. We found that star-like shape pores occurred when low doped concentration n-type silicon sample was used while high doped concentration produced normal pores hole-shape on the surface. By increasing etching time will cause the neighbouring star-like shape branches to combine and produced bigger pores. Reasons...
We present an investigation on a coupled system consists of gold nanoparticles and silicon nanocrystals. Gold nanoparticles (AuNPs) embedded into porous silicon (PSi) were prepared using the electrochemical deposition method. Scanning electron microscope images and energy-dispersive X-ray results indicated that the growth of AuNPs on PSi varies with current density. X-ray diffraction analysis showed...
Research on heterogeneous integration system implementation for high-performance and low-power large scale integration (LSI) is in great demand and continues to grow. The co-integration of alternative materials such as Ge and III-V channels on Si substrate is essential in order to fully utilize the conventional Si CMOS platform. Thus, it opens up the feasibility of advance device technologies along...
Observation of visible luminescence in porous silicon(PS) by Canham in 1990[1] seemed to solve the physical inability of silicon to act as light emitter. PS has unique properties such as direct and wide modulated energy bandgap, high resistivity, vast surface area-to-volume ratio and the same single-crystal structure as bulk Si. These characteristics make it a suitable material for use in photodetectors...
Several parameters such as doping concentration and crystal orientation of the substrate, electrolyte composition, applied current density and etching time play an important role in the electrochemistry of silicon [1–4]. However, illumination is another major parameter in Si etching process, particularly for n-type material [5]. In this paper, porous silicon (PS) structures were prepared under front-side...
ZnO nanostructure is one of the most interesting compound semiconductors due to its enormous potential applications in the electronics and optical devices [1, 2]. In this work, ZnO nanostructures were grown on porous silicon (PS) substrate without any catalyst by a simple thermal evaporation method. It has been found that PS with a rough surface morphology is an ideal growth template for growing ZnO...
In this work a very low cost and conventional technique was used to prepare Ge nano/microstructures by means of filling the material inside porous silicon (PS) using thermal evaporator. PS was prepared by anodization of Si wafer in ethanoic hydrofluoric acid (HF).The Ge layer was deposited onto the PS by thermal evaporation.Subsequent annealing at 650°C and 750 C for 30 mins were done to drive in...
Effects of various metal contacts on contact resistance and barrier height of metal/graphene interface are reported. Illustration of graphene-based back-gate FET is done. Graphene sheets are prepared from micromechanical exfoliation of highly ordered pyrolytic graphite (HOPG) are transferred onto 300nm SiO2/p-Si substrate.
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