An ex situ nanoparticle DNA detection assay utilizing DNA-modified nanoparticles attached to DNA monolayer gratings on glass substrates is developed. The assay utilizes the simultaneous hybridization of a single stranded DNA (ssDNA) target molecule to both an amine-modified DNA oligonucleotide attached to an amine-reactive glass surface and a thiol-modified DNA oligonucleotide attached to a 13 ...

In this paper we present a study of the BRDF characteristics of urban surface materials (e.g. roof coverings). Multiangular measurements were made at the European Goniometer Facility, Ispra, Italy. We used a linearly polarized HeNe-laser as illumination source and a spectroradiometer with a mounted polarizer as detector. Measurements were done at horizontal (s) and vertical (p) polarisation sta...

This thesis describes an investigation of certain aspects of laser light beam propagation in a simulated ocean environment. The specific parameter of interest here is the angular spectrum, or angular distribution, of the received optical power after it traverses the underwater medium. Knowledge of the angular spectrum width is required by the communication engineer in order to specify the field...

(abstractThe Kowa laser cell flare meter has been recently introduced to quantify the assessment of aqueous cells and flare in vivo by measurement of light scattering from a low power HeNe beam. Computer analysis of this scattered light can distinguish cells (expressed as cell count) from protein (expressed as photon count/ms), and in-vitro work with albumin solutions has shown that the photon ...

The photothermal deflection technique, also known as "mirage effect", is a nondestructive method of evaluating thermal properties of solid, liquid or gaseous species. This technique will be used to detect pollutant absorption. As the deflection is stronger in liquids than gases, we will first consider the deflection in paraffin oil. We consider a medium that is heated by a modulated laser diode...

Introduction : Oral mucositis (OM) is a common side effect of radiotherapy (RT) or radio-chemotherapy (RT/CT) for head and neck cancers. It causes lesions leading to impairment the quality life, dysphagia, pain, in up 20% cases, dosimetry concession, decreasing local tumor control, thereby impacting survival rate. Positive results photobiomodulation (PBM) treat it have been reported literature....

An intensity-modulated HeNe-laser beam was utilized to optically actuate the mechanical resonance of a macroscopic torsional silicon oscillator (f 0 = 67 700 Hz, Q = 42 100 at p = 1 mbar and T = 300 K). Both radiation pressure and photothermal effects may cause optical actuation of a mechanical device. Both excitation effects were studied. In actuation through radiation pressure, the actuating ...

I. Ben-Itzhak, 1 J. P. Bouhnik, 2 Z. Chen, 1,* B. D. Esry, 3 I. Gertner, 2 C. Heinemann, 4,† W. Koch, 4 C. D. Lin, 1 and B. Rosner 2 J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506 Department of Physics, Technion, Haifa 32000, Israel Department of Physics, JILA, University of Colorado, Boulder, Colorado 80309 Institut für Organische Chemie, Tec...

Potential parameters sensitivity analysis for helium unlike molecules, HeNe, HeAr, HeKr and HeXe is the subject of this work. Number of bound states these rare gas dimers can support, for different angular momentum, will be presented and discussed. The variable phase method, together with the Levinson’s theorem, is used to explore the quantum scattering process at very low collision energy usin...