Rapid determination of fluorescent molecular orientation in leakage radiation microscopy

Leakage radiation interference microscopy.

We present a proof of principle for a new imaging technique combining leakage radiation microscopy with high-resolution interference microscopy. By using oil immersion optics it is demonstrated that amplitude and phase can be retrieved from optical fields, which are evanescent in air. This technique is illustratively applied for mapping a surface mode propagating onto a planar dielectric multil...

Best Orientation Determination of Buildings in Zanjan City Based on Solar Radiation

In recent years, high consumption of energy has become one of the major problems of world, especially in big cities. One of the solutions given for this situation is using solar energy as much as possible. If buildings are constructed in accordance with solar radiation and regional climate, they can absorb the lowest energy in hot and the most energy in cold periods; there will then be noticeab...

Rapid determination of the three-dimensional orientation of single molecules.

A technique is proposed for determination of the three-dimensional orientation of the transition dipoles of single molecules by use of polarization-sensitive detection of fluorescence through a high-N.A. objective. Molecular orientation can be determined uniquely and rapidly based on the counts from three detectors that are sensitive to different polarizations of light.

Fluorescent strip sensor for rapid determination of toxins.

Here, we report a simple fluorescent strip sensor based on aptamer-quantum dots technology that can meet toxin monitoring demands using ochratoxin A (OTA) as a model toxin. The limit of the detection (LOD) for the fluorescent strip was 1.9 ng mL(-1), while the time needed for the detection is only 10 min; this conforms to the standards of World Health Organization (WHO) or better. Overall funct...

Cytochemical studies with African Horse-Sickness Virus by Fluorescent Microscopy