And though I .... understand all mysteries, and all knowledge; ...and have not Love, I am nothing
1 Corinthians 13:2
"....July 31 issue of the journal Science that common chemical reactions accelerate Brownian diffusion by sending long-range ripples into the surrounding solvent.
The findings violate a central dogma of chemistry, that molecular diffusion and chemical reaction are unrelated.
To observe that molecules are energized by chemical reaction is “new and unknown,” said Granick. “When one substance transforms to another by breaking and forming bonds, this actually makes the molecules move more rapidly. It’s as if the chemical reactions stir themselves naturally.”
“Currently, Nature does an excellent job of producing molecular machines but in the natural world scientists have not understood well enough how to design this property,” said Wang.
The unexpected ripples generated by chemical reactions, especially when catalyzed (accelerated by substances not themselves consumed), propagate long-range. For chemists and physicists, this work challenges the textbook view that molecular motion and chemical reaction are decoupled, and that reactions affect only the nearby vicinity.
For engineers, this work shows a powerful new approach to design nanomotors at the truly molecular level.
Screening 15 organic chemical reactions, the researchers study chemical reactions that are workhorses with wide application within the organic chemical, pharmaceutical and materials industries.
For example, “click” reactions assist the assembly of libraries of biomedical compounds for screening and the “Grubbs” reaction used for plastic manufacture.
Their economic impact is major. Estimates indicate that a majority of all products manufactured require catalysis somewhere in their production sequence.
Wang remarked with enthusiasm: “Now, we’re like a baby taking her first steps and there’s so much exciting opportunity to grow this baby.”
Granick concluded: “The field of active materials, quite new and growing fast, is enriched by this discovery that chemical reactions behave as nanoswimmers made of individual molecules that stir up the reaction soup. The concept of active materials has shown its value in challenging a central dogma of chemistry.”
These findings were published in the July 31, 2020 issue of Science magazine. The study was performed at the IBS Center for Soft and Living Matter by authors Huan Wang, Myeonggon Park, Ruoyu Dong, Junyoung Kim, Yoon-Kyoung Cho, Tsvi Tlusty, and Steve Granick."
SciTechDaily
1 Corinthians 13:2
"....July 31 issue of the journal Science that common chemical reactions accelerate Brownian diffusion by sending long-range ripples into the surrounding solvent.
The findings violate a central dogma of chemistry, that molecular diffusion and chemical reaction are unrelated.
To observe that molecules are energized by chemical reaction is “new and unknown,” said Granick. “When one substance transforms to another by breaking and forming bonds, this actually makes the molecules move more rapidly. It’s as if the chemical reactions stir themselves naturally.”
“Currently, Nature does an excellent job of producing molecular machines but in the natural world scientists have not understood well enough how to design this property,” said Wang.
The unexpected ripples generated by chemical reactions, especially when catalyzed (accelerated by substances not themselves consumed), propagate long-range. For chemists and physicists, this work challenges the textbook view that molecular motion and chemical reaction are decoupled, and that reactions affect only the nearby vicinity.
For engineers, this work shows a powerful new approach to design nanomotors at the truly molecular level.
Screening 15 organic chemical reactions, the researchers study chemical reactions that are workhorses with wide application within the organic chemical, pharmaceutical and materials industries.
For example, “click” reactions assist the assembly of libraries of biomedical compounds for screening and the “Grubbs” reaction used for plastic manufacture. Their economic impact is major. Estimates indicate that a majority of all products manufactured require catalysis somewhere in their production sequence.
Wang remarked with enthusiasm: “Now, we’re like a baby taking her first steps and there’s so much exciting opportunity to grow this baby.”
In designing their study, the researchers were bio-inspired by noticing that motion can be powered by enzymes and other molecular motors that are prevalent in living systems.
Granick concluded: “The field of active materials, quite new and growing fast, is enriched by this discovery that chemical reactions behave as nanoswimmers made of individual molecules that stir up the reaction soup. The concept of active materials has shown its value in challenging a central dogma of chemistry.”
These findings were published in the July 31, 2020 issue of Science magazine. The study was performed at the IBS Center for Soft and Living Matter by authors Huan Wang, Myeonggon Park, Ruoyu Dong, Junyoung Kim, Yoon-Kyoung Cho, Tsvi Tlusty, and Steve Granick."
SciTechDaily