Materials Literature
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This paper presents the recycling possibility of irradiated alanine dosimeter via annealing methods. The alanine samples were irradiated under 10 MeV electron beam with the doses of 10, 30, and 60 kGy. The samples were stored in an oven with the different temperature and time. The fading effects of the EPR signal of t…
A vacuum chamber (made up of stainless steel) and magnetron target (made up of copper) have been designed, manufactured and assembled. The sputtering target of pure copper make (dimensions 13 cm) involves cooling with (dimension 6.5 cm, with depth 3 cm) and it contains a circular magnet (6 x 3cm, an outer and inner di…
The idea of using magnetism for healing and therapy can be traced back to the ancient Greeks and Egyptians, who believed that the magical rock, now known as magnetite, was a “cure” for most common ailments. A similar belief was found in the ancient cultures of India and China, where people also used the power of magne…
PURPOSE: Sampling perfection with application optimized contrasts using different flip angle evolution (3D-SPACE) sequence enables one to decrease specific absorption rate (SAR) by using variable flip angle refocusing pulse. Therefore, it is expected that the contrast obtained with 3D-SPACE sequences is different from…
Gene therapy (GT) using nanocarriers has the potential to have a revolutionary impact on cancer treatment. Non-viral GT has been largely ignored in the past due to ineffi cient gene delivery, toxicity and short-term gene expression. However, recent advances in nanoparticle technology and in the genetic material to be…
Cancer, the uncontrolled growth and invasion and sometimes metastasis of malignant cells that can affect almost any tissue of the body and people of all ages, is a major public health burden in the world. In the United States, 1 in 4 deaths is caused by cancer (Jemal et al. 2010), which is the leading cause of death a…
Thanks to the deep investigation into the biology and physiology of cancer, numerous molecular targets have been identifi ed for chemotherapy. Recent investigations have led to the design of novel molecules with greater antitumor activity compared to traditional anticancer agents. On the contrary, the clinical use of…
Currently, most imaging probes determine the targeting specifi city by recognizing the tumor-associated receptors over-expressed in the cancer cells. However, due to the unpredictable expression levels of these receptors in different tumor subtypes, the tumor specifi city of these probes in vivo is much less satisfact…
Mixed ligand Th(IV) complexes of the type [M(Q)(L)(NO3)2] x 2H2O have been synthesized using 8-hydroxyquinoline (HQ) as a primary ligand and N- and/or O- donor amino acids (HL) such as L-threonine, L-tryptophan and L-isoleucine as secondary ligands. The metal complexes have been characterized on the basis of elemental…
Silk-elastin-like polymers (SELPs) are protein-based polymers composed of repetitive amino acid sequence motifs found in silk fibroin (GAGAGS) and mammalian elastin (VPGVG). These polymers are of much interest, both from a fundamental and applied point of view, finding potential application in biomedicine, nanotechnol…
Precise structure analyses of advanced materials under pressure were performed using each advantage of X-ray absorption fine structure (XAFS) and diffraction methods. Measurements were performed in-situ under pressure and temperature using a large-volume multi-anvil pressure apparatus and synchrotron radiation. XAFS s…
The effects of impurities on the generation of voids in composites fabricated by vacuum-assisted resin transfer molding was investigated to help reduce mechanical weakening in large structures. Impurities were intentionally inserted into laminates, which were then observed optically. Internal voids were generated in s…
En este trabajo hemos investigado teóricamente las propiedades electrónicas y ópticas del óxido de niobio B-Nb2O5para una de sus fases cristalinas, a saber la fase B. Usamos la Teoría de los Funcionales de la Densidad junto con la Aproximación del Gradiente Generalizado con uno de sus nuevos funcionales diseñado para…
Crystal structure was refined on Sr - Nb and Sr ( La )- Nb oxynitride perovskites prepared through citrate route by using neutron diffraction. The former had the composition of SrNbO2.11N0.89and crystallized in I4/mcm with a = 0.57099(2) nm , c = 0.81015(5) nm having excess oxide ions in apical 4a site around Nb being…
A new series of manganese(II), iron(III) and cobalt(III) complexes of 14-membered macrocyclic ligand, (3,6,10,13,16,19-hexaazabicyclo[6.6.6]icosane-1,8-diamine) have been prepared and characterized by elemental analyses, IR, UV-VIS, $^1H$ - and $^{13}C$ - NMR spectra, magnetic susceptibilities, conductivities, and ESR…
A method is proposed for determining chromium content in the carbon steel pipes of a nuclear power plant (NPP) to evaluate wall thinning caused by flow-accelerated corrosion (FAC). A flat file was used to obtain filings samples. To assess sampling quality, a disk form of SRM 1227 was ground with the flat file, and the…
숙신산을 시작물질로 Amberlite IR-120을 이용하여 다이옥틸숙시네이트와 무수숙신산을 합성했다. 양이온 교환 수지를 촉매로 사용했을 때, 숙신산과 옥탄올을 이용한 다이옥틸숙시네이트의 합성은 환류조건에서 18시간의 반응 시간이 요구되었고, 무수숙신산의 합성도 숙신산, Amberlite IR-120, isopropenyl acetate의 존재하에 반응을 진행하였을 때, 18 시간이상의 긴 반응 시간이 요구되었다. 그러나, 마이크로파를 이용하게 되면 반응시간은 10분 이내로 획기적으로 줄어 들었다. 80% 이상의 높은 수득률을 유지하는 상태로 촉매는 최소 4회 이…
A newly developed cost-effective approach to prepare $^{15}N/^{13}C$ -labeled protein for NMR studies is presented. This method has been successfully applied to isotopically labeling of PTK6 SH2 domain and MTH 1880 protein. The production method generates cell density using a growing media containing $^{15}NH_4Cl$ , $…
We performed the tensile test of an individual carbon nanofiber (CNF) inside a scanning electron microscope. The mechanical testing system was installed in a scanning electron microscope (SEM). The nano-manipulator was set up in the SEM, and the force sensor, which is formed as a cantilever, was mounted on the nano-ma…
Abstract Hydrogen electrosorption is studied on 3D porous carbon electrodes fabricated by interferometric lithography. Mixed acetonitrile/water solutions provided a route to electrodeposit Pd nanoparticles homogeneously throughout the structures. These monoliths exhibit hydrogen electrosorption profiles typical for li…