Photoacoustic imaging with a synthetic aperture focusing technique (SAFT) is an effective method to improve the lateral resolution for out-of-focus regions in scanning microscopy systems, which commonly require a decent motorized scanning stage for a lateral scan of a transducer to obtain a cross-sectional image. In this study, we propose and test a photoacoustic imaging system with a scanning ...

E p o x y resins h a v e been es tab l i shed as des i rab le e m b e d d i n g m e d i a for e lec t ron m i c r o s c o p y (1-5) . F inck (6) desc r ibed a n epoxy resin, E P O N 812 (Shell) t , w h i c h in a d d i t i o n to its o t he r des i rab le charac te r i s t ics , is also a p p r e c i a b l y misc ib le w i th wate r . H e no t ed t h a t p r o l o n g e d a lcohol d e h y d r a...

Micro-CGS, an integration of the interferometric optical method Coherent Gradient Sensing (CGS) [1-3] with an inverted microscope, is introduced. Micro-CGS extends the capabilities of Classical CGS into the cellular level. As such, it provides full-field, real-time, micro-interferometric quantitative imaging. Micro-CGS is based on the introduction of a microscope objective into the classical CG...

Optoacoustic (OA) microscopy using an all-optical system based on the probe beam deflection technique (PBDT) for detection of laser-induced acoustic signals was investigated as an alternative to conventional piezoelectric transducers. PBDT provides a number of advantages for OA microscopy including (i) efficient coupling of laser excitation energy to the samples being imaged through the probing...

New forms of vanadium oxide Nanoporous were fabricated using a simple chemical synthesis method. Vanadium pentoxide (V2O5) Nanoporous were synthesized by sodium metavanadate as precursor and ethylene glycol as surfactant. The samples were characterized by high resolution transmission electron microscopy (HRTEM), field effect scanning electron microscopy (FESEM) and X-ray diffraction (XRD), Four...

Background The sensitivity of smear microscopy for diagnosis of tuberculosis might be improved through treatment of sputum with sodium hypochlorite and application of fluorescent microscopy. This study aimed to determine the agreement between direct Fluorescent Microscopy and Ziehl-Neelsen concentration technique by their ability of detecting acid fast bacilli in resource poor settings. Metho...

The application of the non-conventional imaging technique LOFI (laser optical feedback imaging) to coherent microscopy is presented. This simple and efficient technique using frequency-shifted optical feedback needs the sample to be scanned in order to obtain an image. The effects on magnitude and phase signals such as vignetting and field curvature occasioned by the scanning with galvanometric...

The advancement of transmission electron microscopy has made it possible to analyze the metallographic structure of steel products on a nanoscopic scale, which leads to the detail understanding of microstructures such as fine precipitates and grain boundaries. The application of the characteristic technology to commercial steel products requires consistency in the structural analysis of steel f...