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An “acid” structure for polyriboguanylic acid observed by X-ray diffraction

✍ Scribed by Steven B. Zimmerman

Publisher
Wiley (John Wiley & Sons)
Year
1975
Tongue
English
Weight
127 KB
Volume
14
Category
Article
ISSN
0006-3525

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✦ Synopsis

A n "Acid" Structure for Polyriboguanylic Acid Observed b y X-Kuy Diffraction

We report here 1 he application to polyrihoguanylic acid (poly rC;) of a techriiyue used to form solids nit h partial inolecular orientat ion by freairig of acidic. soli~tions.~ The freezing casts the pol>-mer inolerides i n t o a hard flak), solid, which can he studied by X-ray diffract ion. The predoiiiiiiairt form of the solid is platelike, with the nwlcrrilar

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Wide-angle (WAXS) and small-angle X-ray scattering (SAXS) studies of dry granular zein, zein fibers, zein-oleic acid resin, and zein-oleic acid films are reported. WAXS patterns showed two diffuse rings for these samples indicative of noncrystalline structures. Measured d-spacings of ϳ 4.6 Å and ϳ 1