English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Slow long-lived fluctuations of mechanical properties of drying drops ofinstant coffee water solutions have been found by means of the Drying DropTechnology developed earlier. Parameters of the fluctuations depended on theextent of dilution and were not affected by additional hashing of the solution,closing by a cover and shielding from external electromagnetic fields [1-3].Here we compared dynamics of physicochemical and morphological processes inbulk. We observed microscopically periodic emergence, growth, aggregation anddisappearance of spherical cavities (50-250 micrometers in diameter) in bulk ofdispersion, which was followed by agreed fluctuations of physicochemicalparameters of the colloidal system. We have shown that those spheres were hugehydrate covers of liquid crystal water around colloidal particles. Phasetransitions between free and bound (liquid crystal) water in a bulk of acolloidal system is a pacemaker of fluctuations of its physicochemicalproperties. These changes are regulated and coordinated by the value of osmoticpressure. At low osmotic pressure hydrate covers grow, forcing out particlesand ions into the bulk; at high osmotic pressure they collapse to small size,reducing osmotic pressure. Existence of self-oscillatory processes wasconfirmed by a mathematical model.

Water-induced self-oscillatory processes in colloidal systems by the example of instant coffee