Glow discharge unit

Details Glow discharge unit Glow discharge unit

1987-02-19

1990-04-10

Terapane, John F.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

42218606, 422907, B01J 1908

Patent

active

049159178

ABSTRACT:
A glow discharge unit suitable for making surfaces such as carbon-coated electron microscopy grids and glass cover slips hydrophilic. The use of a vacuum leak detector (Tesla coil) in place of a conventional high voltage power supply and a small plastic desiccator for the vacuum chamber make the unit very inexpensive. Due to the small volume of the chamber and the simplicity of the unit, the whole glow discharge process can be carried out in only 2 to 3 min., a time considerably shorter than that required for conventional vacuum evaporators. The hydrophilic surfaces thus obtained improve adsorption of particles by several orders of magnitude in preparation for negative staining, freeze-drying and other procedures.

REFERENCES:
patent: 2395062 (1946-02-01), Nielsen
patent: 3018409 (1962-01-01), Berghaus et al.
patent: 3288638 (1966-11-01), Van Paassen et al.
patent: 3471396 (1969-10-01), Davidse
patent: 3859535 (1975-01-01), Bartz
patent: 4115168 (1978-09-01), Buonadonna et al.
patent: 4149923 (1979-04-01), Uehara et al.
patent: 4307283 (1981-12-01), Zajac
patent: 4341582 (1982-07-01), Kohman et al.
patent: 4482246 (1984-11-01), Meyer et al.

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