From previous experiments, the scientists knew that some chemical reactions proceed much faster
in microdroplets than in larger solution volumes.
Indeed, the team observed that gold nanoparticle grew over 100,000 times faster
in microdroplets.
Not exact matches
In addition, the material is capable of «
microdroplet manipulation,» or the transfer of miniature volumes of liquid.
«Salvinia effect» also has potential for liquid - handling technology that executes «
microdroplet manipulation» — a breakthrough where the adhesion of liquid to a robotic arm can be tuned accordingly and result
in non-loss transfer for very tiny amounts of liquid.
The key ingredient
in «thubber» is a suspension of non-toxic, liquid metal
microdroplets.
Another negative mechanism:
Microdroplets of oil dispersed
in the water might set off a feeding frenzy of microbes able to dine on the hydrocarbons, further reducing oxygen levels.
Whereas fog is made of ready - made
microdroplets floating
in the air, dew appears following the cooling of a substrate below air temperature.
It's still unclear why water
microdroplets are able to replace a reducing agent
in this reaction.
But if you turn the water
in that beaker into
microdroplets, you will get about 3,000 square meters of surface area — about the size of half a football field,» Zare said.
However, the most striking observation came while running a control experiment
in which they replaced the reducing agent — which ordinarily releases the gold particles — with
microdroplets of water.
That caused «
microdroplets» to form
in its wake, just as condensation forms (Physical Review Letters, doi.org/cdk8).
But if you turn the water
in that beaker into
microdroplets, you will get about 3,000 square meters of surface area - about the size of half a football field,» Zare said.
However, the most striking observation came while running a control experiment
in which they replaced the reducing agent - which ordinarily releases the gold particles - with
microdroplets of water.
Previous work has given insights into the mechanistic pathways leading to small molecule sequestration
in membrane - free coacervate protocells; successfully demonstrated the use of liquid - liquid phase separated micro compartments for protein expression using cell free expression systems; exploited microfluidics for the high throughput formation of stable, monodisperse
microdroplets; and integrated two contrasting modes of protocell construction to produce a novel hybrid model based on fatty acid membrane - bound coacervate micro-droplets.