2006年12月19日
Experimental studies conducted by Ph.D. Anatoli Bogdan at the University of Helsinki, Finland, have received broad interest in the scientific world, as the results might have applications even in the cryopreservation of cells and tissues. Bogdan's results show that mixture droplets consisting of sulphuric acid and water can be slowly cooled down to-140 degrees Celsius and then heated again without ice formation. The formation of ice is particularly problematic in cryopreservation, as the crystal formation damages cell structures.
Bogdan has conducted his experiments by cooling and heating droplets of 0.5-6 'm in diameter. His study focuses on two forms of water: low-density amorphous ice (LDA, or so-called glassy water) and highly viscous water (HVW), which is a liquid phase that LDA melts into. Bogdan reports that HVW is not a new form of water as some scientists believed. Bogdan's study Reversible Formation of Glassy Water in Slowly cooling Diluted Drops has been published in Journal of Physical Chemistry in June 2006.
博格丹本人对云研究中的水性质进行了观察，他和他的同事们最近发表了一项有关卷云的研究（H2SO4/H2SO4/H2O Aerosol液滴的低温卷心的形成，2006年11月杂志，2006年11月）。他们的研究表明，与以前的思想不同，卷云中的云晶体不是完全固体冰，而是覆盖着一层液态水和硫酸。层效应，例如云的反射率，因此是气候。还已经观察到，液体上的臭氧损失速率高于固体表面。因此，结果表明，臭氧在卷云中被破坏的速度比常规的臭氧更快。
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