Browsing by Author "Yildirim, A."
Now showing items 1-20 of 27
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Analysis of design parameters in safety-critical computers
(IEEE Computer Society, 2018)Nowadays, safety-critical computers are extensively used in many civil domains like transportation including railways, avionics, and automotive. In evaluating these safety critical systems, previous studies considered ... -
Bio-inspired hierarchically structured polymer fibers for anisotropic non-wetting surfaces
(Royal Society of Chemistry, 2017)We demonstrate a rice leaf-like hierarchically textured polymer fiber array for anisotropic non-wetting surfaces. To provide superhydrophobicity in addition to the anisotropic behavior, fiber surfaces are spray coated with ... -
Bioinspired optoelectronic nose with nanostructured wavelength-scalable hollow-core infrared fibers
(Wiley, 2011)A digital photonic nose concept based on infrared absorption inside a hollow core infrared transmitting fiber array is presented. Wavelength-scalable photonic band gap fibers filter specific energy photons from a blackbody ... -
Cytotoxicity of multifunctional surfactant containing capped mesoporous silica nanoparticles
(Royal Society of Chemistry, 2016)This paper reports the synthesis of silica capped surfactant (cetyltrimethylammonium bromide; CTAB) and dye (Rose Bengal; RB) containing mesoporous silica nanoparticles (MSNs). Capping the pores of the surfactant containing ... -
Enhanced performance of dye-sensitized solar cells by omnidirectional antireflective coatings
(S P I E - International Society for Optical Engineering, 2015)Organically modified silica (ORMOSIL)-coated dye-sensitized solar cells (DSSCs) with improved energy conversion efficiency are demonstrated. ORMOSIL-coated DSSC surfaces exhibit omnidirectional low reflectivity over a broad ... -
Flexible and mechanically stable antireflective coatings from nanoporous organically modified silica colloids
(Royal Society of Chemistry, 2012)We report the preparation of flexible and mechanically stable antireflective organically modified silica (ormosil) coatings at ambient conditions. Thin films are obtained from colloidal suspensions of ormosil gels which ... -
Formation of pyrene excimers in mesoporous ormosil thin films for visual detection of nitro-explosives
(American Chemical Society, 2014-04-01)We report the preparation of mesoporous thin films with bright pyrene excimer emission and their application in visual and rapid detection of nitroaromatic explosive vapors. The fluorescent films were produced by physically ... -
High selectivity boolean olfaction using hollow-core wavelength-scalable Bragg fibers
(American Chemical Society, 2012)A new odorant detection scheme, based on infrared absorption of volatile organics inside an optofluidic channel array, is discussed in terms of its selectivity. The sensor unit of the array is a hollow core Bragg fiber ... -
Highly transparent, flexible, and thermally stable superhydrophobic ORMOSIL aerogel thin films
(American Chemical Society, 2011)We report preparation of highly transparent, flexible, and thermally stable superhydrophobic organically modified silica (ORMOSIL) aerogel thin films from colloidal dispersions at ambient conditions. The prepared dispersions ... -
Impact of mesoporous silica nanoparticle surface functionality on hemolytic activity, thrombogenicity and non-specific protein adsorption
(Royal Society of Chemistry, 2013)Although numerous mesoporous silica nanoparticle (MSN) drug carriers and theranostic agents with various surface functionalities have been designed in the last decade, their biocompatibility remains a matter of intensive ... -
Nanoconfinement of pyrene in mesostructured silica nanoparticles for trace detection of TNT in the aqueous phase
(Royal Society of Chemistry, 2014)This article describes the preparation of pyrene confined mesostructured silica nanoparticles for the trace detection of trinitrotoluene (TNT) in the aqueous phase. Pyrene confined mesostructured silica nanoparticles were ... -
Noncovalent functionalization of mesoporous silica nanoparticles with amphiphilic peptides
(Royal Society of Chemistry, 2014)The surface of mesoporous silica nanoparticles (MSNs) has been modified for enhancing their cellular uptake, cell targeting, bioimaging, and controlled drug release. For this purpose, covalent anchorage on the silica surface ... -
One-pot preparation of fluorinated mesoporous silica nanoparticles for liquid marble formation and superhydrophobic surfaces
(American Chemical Society, 2011)One-pot synthesis of fluorinated mesoporous silica nanoparticles (FMSNs) is reported. Uniform mesoporous nanoparticles are prepared by condensation of tetraethyl orthosilicate (TEOS) and fluoroalkyl containing organotriethoxy ... -
Photonic bandgap narrowing in conical hollow core Bragg fibers
(AIP Publishing, 2014)We report the photonic bandgap engineering of Bragg fibers by controlling the thickness profile of the fiber during the thermal drawing. Conical hollow core Bragg fibers were produced by thermal drawing under a rapidly ... -
Pluronic polymer capped biocompatible mesoporous silica nanocarriers
(Royal Society of Chemistry, 2013)A facile self-assembly method is described to prepare PEGylated silica nanocarriers using hydrophobic mesoporous silica nanoparticles and a pluronic F127 polymer. Pluronic capped nanocarriers revealed excellent dispersibility ... -
A porosity difference based selective dissolution strategy to prepare shape-tailored hollow mesoporous silica nanoparticles
(Royal Society of Chemistry, 2015)This article reports a general method to prepare hollow mesoporous silica nanoparticles with tailored morphology. The method is based on selective dissolution of porous cores of solid silica shell/porous silica core ... -
Region covariance descriptors calculated over the salient points for target tracking
(IEEE, 2012)Features extracted at salient points in the image are used to construct region covariance descriptor (RCD) for target tracking purposes. In the classical approach, the RCD is computed by using the features at each pixel ... -
Robust cassie state of wetting in transparent superhydrophobic coatings
(American Chemical Society, 2014)This paper investigates the stability of the Cassie state of wetting in transparent superhydrophobic coatings by comparing a single-layer microporous coating with a double-layer micro/nanoporous coating. Increasing pressure ... -
Robust superhydrophilic patterning of superhydrophobic ormosil surfaces for high-throughput on-chip screening applications
(Royal Society of Chemistry, 2016)This article describes a facile method for the preparation of two-dimensionally patterned superhydrophobic hybrid coatings with controlled wettability. Superhydrophobic coatings were deposited from nanostructured organically ... -
Salient point region covariance descriptor for target tracking
(SPIE, 2013-02-22)Features extracted at salient points are used to construct a region covariance descriptor (RCD) for target tracking. In the classical approach, the RCD is computed by using the features at each pixel location, which increases ...
