Browsing by Keywords "Nanoparticle"
Now showing items 1-20 of 23
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Advances in nanoparticle‐based medical diagnostic and therapeutic techniques
(John Wiley & Sons, 2016-03-11)Advances in modern medicine have eliminated several major causes of human mortality and considerably extended life expectancies around the world; however, this increase in the global age average has also boosted the ... -
Biocompatibility studies on lanthanum oxide nanoparticles
(Royal Society of Chemistry, 2015)Lanthanum oxide nanoparticles (LONP), a rare earth metal oxide, have unique properties that make them a suitable candidate for several biomedical applications. We investigated certain key in vitro and in vivo biocompatibility ... -
Dielectrophoresis in microfluidics technology
(2011)Dielectrophoresis (DEP) is the movement of a particle in a non-uniform electric field due to the interaction of the particle's dipole and spatial gradient of the electric field. DEP is a subtle solution to manipulate ... -
Differential charging in x-ray photoelectron spectroscopy: a nuisance or a useful tool?
(American Chemical Society, 2003)We apply a negative bias to the sample while recording an XPS spectrum to enhance differential (positive) charging. The enhanced differential charging is due to the repulsion of stray electrons from the sample, which ... -
Fast and quick degradation properties of doped and capped ZnO nanoparticles under UV-Visible light radiations
(Elsevier Ltd, 2016)Undoped and Manganese (Mn) doped zinc oxide (ZnO) (Zn1- xMnxO, x=0.005, 0.01, 0.015 and 0.02) nanoparticles (NPs) capped with (1.0%) Thioglycerol (TG) has been successfully synthesized by co-precipitation method. Optical ... -
Growth of Ge nanoparticles on SiO2 / Si interfaces during annealing of plasma enhanced chemical vapor deposited thin films
(Elsevier B.V., 2007)Multilayer germanosilicate (Ge:SiO2) films have been grown by plasma enhanced chemical vapor deposition. Each Ge:SiO2 layer is separated by a pure SiO2 layer. The samples were heat treated at 900 °C for 15 and 45 min. ... -
Immunoregulatory activities of nanoparticle-forming oligodeoxynucleotides
(Bilkent University, 2009)Innate immune system is activated by a wide range of microbial by products leading to an immediate immune activation primarily designed to neutralize and control the invading insult. The cells of the innate immune system ... -
InGaN green light emitting diodes with deposited nanoparticles
(Elsevier BV, 2007)We grew an InGaN/GaN-based light-emitting diode (LED) wafer by metal-organic chemical vapor deposition (MOCVD), fabricated devices by optical lithography, and successfully deposited ellipsoidal Ag nano-particles by way of ... -
Investigation of novel RNAi and nanoparticle approaches for their anti-proliferative and drug-sensitizing effects in breast cancer
(Bilkent University, 2017-08)Drug resistivity remains a major challenge in treating different cancer types. Among several strategies adapted to increase drug sensitivity in breast cancer cells, in the present thesis I studied an RNAi molecule targeting ... -
Mesoporous metallic rhodium nanoparticles
(Nature Publishing Group, 2017)Mesoporous noble metals are an emerging class of cutting-edge nanostructured catalysts due to their abundant exposed active sites and highly accessible surfaces. Although various noble metal (e.g. Pt, Pd and Au) structures ... -
Metal nanoring and tube formation on carbon nanotubes
(American Physical Society, 2002)The structural and electronic properties of aluminum-covered single-wall carbon nanotubes (SWNT's) are studied from first principles for a large number of coverages. Aluminum-aluminum interaction, that is stronger than ... -
Novel nanocomposite coatings of nanoparticles
(Bilkent University, 2011)Incorporating nanoparticles into nanocomposite thin-films enables coatings with multi-functionality depending on the particle type and size, and the film morphology. These multiple functions may include, for example, ... -
Plasmonics: merging photonics and electronics at nanoscale dimensions
((AAAS) American Association for the Advancement of Science, 2006)Electronic circuits provide us with the ability to control the transport and storage of electrons. However, the performance of electronic circuits is now becoming rather limited when digital information needs to be sent ... -
Reduced density matrix approach to phononic dissipation in friction
(2000)Understanding mechanisms for energy dissipation from nanoparticles in contact with large samples is a central problem in describing friction microscopically. Calculation of the reduced density matrix appears to be the most ... -
Resonant harmonic response in tapping-mode atomic force microscopy
(American Physical Society, 2004)Higher harmonics in tapping-mode atomic force microscopy offers the potential for imaging and sensing material properties at the nanoscale. The signal level at a given harmonic of the fundamental mode can be enhanced if ... -
Solid-solution of Cd(formula)Zn(formula)S nanocrystals in the channels of mesostructured silica films
(Bilkent University, 2006)Mesostructured silica can be used as a reaction medium to produce solidsolution of Cd1-xZnxS nanocrystals as thin films. These films were synthesized from oligo(ethylene oxide) non-ionic surfactant (CH3(CH2)11(OCH2CH2)10OH, ... -
Structure and nanotribology of thermally deposited gold nanoparticles on graphite
(Bilkent University, 2015)Forming a complete understanding of the physical mechanisms that govern friction on the nanometer and atomic scales is an ongoing endeavor for scientists from various disciplines. While atomic force microscopy (AFM) has ... -
Structure and nanotribology of thermally deposited gold nanoparticles on graphite
(Elsevier, 2015)We present experiments involving the structural and frictional characterization of gold nanoparticles (AuNP) thermally deposited on highly oriented pyrolytic graphite (HOPG). The effect of thermal deposition amount, as ... -
Synthesis and characterization of cucurbituril based photoactive multifunctional assemblies
(Bilkent University, 2019-02)Preparation of cucurbituril based functional materials and their use in various applications ranging from biomedicine to optoelectronics have been studied intensely over the last decade. Supramolecular assemblies, networks ... -
Synthesis of blue-shifted luminescent colloidal GaN nanocrystals through femtosecond pulsed laser ablation in organic solution
(Springer Netherlands, 2016-05)We demonstrate the synthesis of GaN nanocrystals (NCs) with the sizes of less than the doubled exciton Bohr radius leading quantum confinement effects via a single-step technique. The generation of colloidal GaN nanoparticles ...
