In-situ birefringence microscopy of uniaxially stretched metal–polymer laminate

NMR study of the anisotropic transport properties of uniaxially stretched membranes for fuel cells

We used NMR techniques to probe the anisotropic properties of stretched Nafion  115 membranes. The alignment of the polymeric structure under a uniaxial load is at the origin of a strong anisotropy of both the water self-diffusion coefficient and the proton conductivity. The determination of these two important membrane properties may lead to new fundamental information on the nature of the pr...

Observation of Polymer Birefringence in Near-Field Optical Microscopy

Birefringence, arising from locally preferred orientation of molecules or functional groups in polymeric and relatedmaterials has been observed in a near-field scanning optical microscope (NSOM) at suboptical spatial resolution. Our observations were successfully correlated to existing structural models of the samples, demonstrating the utility of birefringence observations in NSOM. We present ...

On Producing Colours Using Birefringence Property of Transparent, Colourless Stretched Cellophane

The authors discuss the birefringence property of transparent, colourless stretched cellophane and describe the colours produced when one or more layers of such cellophane is sandwiched between a pair of polarisers. The parameters that can be altered in order to vary the colours are explained, and a convenient method is suggested for viewing the range of colours produced.

In situ electron microscopy methods.

Telepresence for In-situ Microscopy

We present an approach for remote operation of instruments in the Internet environment. We have applied this approach to in-situ electron microscopy experiments that require dynamic interaction with the specimen under observation, as it is excited with external stimuli, i.e., temperature variation, EM eld variation, etc. The dynamic operations include control of the sample's position and orient...