Letter | Published:

Preparation of Sieves with Microscopic Pore Diameters

Naturevolume 199page1288 (1963) | Download Citation



SIEVES with pore diameters in the micron range are finding increasingly frequent applications. While a number of commercially available articles fulfil criteria of pore size uniformity, these pathways are generally tortuous, with great individual variation in the exact hole pattern. A simple technique for preparation of such filters has therefore been developed.

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  1. Johns Hopkins University, Baltimore, 18, Maryland

    • WM. H. DOBELLE
    •  & RALPH K. WITT


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