Remarkably little is known about the mechanism of action of ice nucleation proteins (INPs), although their ability to trigger ice nucleation could be used in a broad variety of applications. We present CD measurements of an insect lipoprotein ice nucleator (LPIN) which show that the lipoproteins consist of a high amount of β-structures (35%). Terahertz absorption spectroscopy is used to probe t...

Forty years after the discovery of metallocene catalysts, there are still several aspects that remain unresolved, especially when “conventional” alkylaluminum activators not used. Herein, we systematically investigated synthesis polyethylene (PE) via three different zirconocene with alkyl substituents, activated organoboron compounds. The polymerization behavior, as well properties materials, w...

Mummification salts and mummified bones were assayed for borate. In two samples of mummification salt one from Deir el-Bahari (26th Dynasty, 700Ð600 BC) and salt from the embalming material of Tutankhamen (18th Dynasty, 1370Ð1335 BC) 3.9 and 2.1 μMol borate/ gram were found, respectively. Six mummified bone fragments from the Old Kingdom contained up to 1.2 μMol/gram. It is suggested that borat...

Surface modification with oligo(ethylene oxide) functionalized monolayers terminated with reactive headgroups constitutes a powerful strategy to provide specific coupling of biomolecules with simultaneous protection from nonspecific adsorption on surfaces for the preparation of biorecognition interfaces. To date, oligo(ethylene oxide) functionalized monolayer-forming molecules which can be acti...

A procedure for obtaining pure glycoasparagine specimens was developed. This method constitutes ion-exchange chromatography in a DEAE-Sephadex A-25 (borate form) column, using a linear gradient of borate buffer as the eluent. With no conversion, almost all the individual glycoasparagines, including some new ones, derived from ovalbumin could be isolated in pure form. By the borate-ion exchange ...

The asymmetric unit of the title basic strontium oxotellurate(IV), Sr5Te4O12(OH)2 {systematic name penta-strontium tetra-kis-[oxotellurate(IV)] di-hydroxide}, comprises three SrII cations (one with site symmetry 2) and two TeIV atoms, as well as seven O atoms. The coordination numbers of the alkaline earth cations to nearby O atoms range from seven (2 ×) to eight, and the TeIV atoms are surroun...

The reaction of hydroxyl-amine hydro-chloride with isatin in ethanol, catalysed with HCl and neutralized with Na(2)CO(3), yielded the one-dimensional coordination polymer, catena-poly[[[aqua-sodium]-di-μ-aqua-[aqua-sodium]-bis-(μ-2-oxoindoline-2,3-dione 3-oximato)] tetra-kis-(oxoindoline-2,3-dione 3-oxime)], {[Na(C(8)H(5)N(2)O(2))(H(2)O)(2)]·2C(8)H(6)N(2)O(2)}(n). The Na(I) atom has a six-coord...

Zinc borate is an important inorganic hydrate borate material, which can be used as a flame retardant agent and corrosion resistance material. This compound can loss its structural water content at higher than 290°C. Due to thermal stability; Zinc Borate can be used as flame retardant at high temperature process of plastic and gum. In this study, the ultrasonic reaction of zinc borates were stu...