Quartz Particles Electron-Microscopic Investigations Modified by Mechanochemical Processing

Centrifugal sedimentation of virus particles for electron microscopic counting.

Centrifuge cells with conical chambers were provided by using special inserts for the stainless-steel tubes that fit the Spinco SW-39 rotor. Particulate material, centrifuged in these cells, was collected on carbon-coated glass discs. These discs were exposed to OsO(4) vapor, dehydrated in graded alcohols, air-dried, and metal-shadowed. The metal-shadowed carbon film was floated from the glass,...

Respiratory Monitoring by Porphyrin Modified Quartz Crystal Microbalance Sensors

A respiratory monitoring system based on a quartz crystal microbalance (QCM) sensor with a functional film was designed and investigated. Porphyrins 5,10,15,20-tetrakis-(4-sulfophenyl)-21H,23H-porphine (TSPP) and 5,10,15,20-tetrakis-(4-sulfophenyl)-21H, 23H-porphine manganese (III) chloride (MnTSPP) used as sensitive elements were assembled with a poly(diallyldimethyl ammonium chloride) (PDDA)....

Scanning electron-microscopic and light-optic investigations of erythrocytes in toxic anaemia.

Detailed assessment of the peculiarities of erythrocyte morphology by applying scanning electron microscopy and light-optics methods gives valuable information on the age characteristics, functional failures of the erythrocyte, pathogenesis of anaemia, and also diagnosis. In toxic anaemia caused by the chronic effect of lead and chlorobenzene there is accumulation of aging erythrocytes in blood...

Electron microscopic and optical investigations of the indium distribution in GaAs capped InxGa12xAs islands

Preparation of human formalin-fixed brain slices for electron microscopic investigations.

Ultra-structural analysis of human post-mortem brain tissue is important for investigations into the pathomechanism of neuropsychiatric disorders, especially those lacking alternative models of studying human-specific morphological features. For example, Von Economo Neurons (VENs) mainly located in the anterior cingulate cortex and in the anterior part of the insula, which seem to play a role i...