Journal: Theranostics

Article Title: Understanding the Structure and Mechanism of Formation of a New Magnetic Microbubble Formulation

doi: 10.7150/thno.4307

Figure Lengend Snippet: Optical microscope images (400x magnification) of: A) Non-magnetic droplets imaged at the top of the haemocytometer and B) non-magnetic droplets mixed with microbubbles in the same focal plane. Two separate populations of microbubbles and droplets on the micrometre scale can be observed. Scale bar in all images is 50 µm.

Article Snippet: Images were obtained at 400x magnification with a standard light microscope (Bresser Optical Microscope No 0510119).

Techniques: Microscopy

Journal: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology

Article Title: Far field scattering pattern of differently structured butterfly scales

doi: 10.1007/s00359-007-0297-8

Figure Lengend Snippet: Angular and spectral reflectance of isolated butterfly scales. a – d White scale of the dorsal forewing of a male Pieris rapae . e – h White scale from the dorsal forewing of a male black jezebel, Delias nigrina . i – l Blue scale of a Morpho aega . m – p Purple scale from the tip of the dorsal forewing of a male purple tip, Colotis regina . q – t Orange–white scale of Urania fulgens . First column : scanning electron microscopy of scale cross-sections made by cutting pieces of wing with a razor blade. Bars 1 μm. Second column : photographs of the angular distribution of light reflected by a scale and subsequently reflected by a white screen, where the scale was illuminated with a narrow beam of white light (see Fig. a). The scales were glued at the tip of a glass micropipette, which was suspended from above on a micromanipulator; see the black shadow in the upper part of b and f . The bright spot at the right of the central black hole is due to light forward scattered by the scale. The ellipses in b (due to the slightly oblique position of the camera) represent directional angles in steps of 10°, from 10° to 60°, as well as that for 65°. The hole in the screen is ca. 8°. Third column : angular dependence of the reflectance in the horizontal plane, measured with the setup of Fig. b. Fourth column : reflectance spectra of single scales measured with a microspectrophotometer

Article Snippet: In addition, the spectral reflectances of single scales were measured with a microspectrophotometer, consisting of a xenon light source, a Leitz Ortholux microscope, and a fiber optic spectrometer.

Techniques: Isolation, Electron Microscopy