Microporous carbon blacks can be characterized by the same techniques as activated carbons, using the classical DR equation and comparison plots based on non-porous materials. The CO adsorption isotherm at 273 K, combined with 2 computer modelling, also leads to an assessment of microporosity. The results agree with independent techniques such as immersion calorimetry into liquids of variable m...

Petroleum and coal tar pitches have been treated thermally at 4008C and 4708C, extracted with toluene and subsequently activated with CO at 9008C. With one exception, the development of the micropore widths and volumes in the resulting 2 carbons follows the trend observed for carbons based essentially on precursors of vegetable origin. On the other hand, petroleum pitch treated at 4008C leads t...

1. Endothelial cells were cultured in tissue culture flasks or on microcarrier beads and labeled with a lipid specific spin-label. 2. Exposure of endothelial cells to benzyl alcohol caused a dose- and time-dependent increase in membrane fluidity using electron spin resonance (ESR). Maximum fluidity was reached after a 5-min exposure to 100 mM benzyl alcohol. 3. Albumin permeability across endot...

The usefulness of cerebrospinal fluid cytology in the diagnosis of malignancy has been enhanced in recent years by the development of new techniques for increasing cellular yield. Micropore filters and a specially adapted cytocentrifuge have been used for this purpose with a resulting increase in cell concentration and in diagnostic accuracy. Cerbrospinal fluid examination has been found to be ...

The protein C pathway is an important regulator of the blood coagulation system. Protein C may also play a role in inflammatory and immunomodulatory processes. Whether protein C or activated protein C affects lymphocyte migration and possible mechanisms involved was tested. Lymphocyte migration was studied by micropore filter assays. Lymphocytes that were pretreated with protein C (Ceprotin) or...

In this study, structural, thermal, and hydrogen (H2) adsorption properties of natural analcime-rich zeolite tuff (A) from Trakya (Turkey) that acid-treated forms investigated. Analcime mineral was treated with 0.1, 0.5, 1, 2, 3 M HCl solutions at 80 °C for 5 h. Differences in structural thermal behaviors the analcime samples before after acid- treatment were examined by X-ray fluorescence spec...