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Collisions

Collision

(Science: physics) refers to the close approach of two or more particles, photons, atoms, nuclei, etc, during which such quantities as energy, momentum, and charge may be altered.

More-or-less synonymous with scattering, except in scattering one generally thinks of one of the particles as being at rest, and the other colliding particles scatter from their initial direction of motion due to the collision.


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Re: 2.5 M glycine crystallized

... might be enough. If not, a 37C water bath might work. Autoclaving is very likely to do the job -- be sure to use the liquid cycle. Solvent collisions can shake the molecules off the crystals, the question is how energetic the collisions should be.

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by jonmoulton
Fri Jun 20, 2014 2:45 pm
 
Forum: Molecular Biology
Topic: 2.5 M glycine crystallized
Replies: 1
Views: 639

Re: SURFACE AREA TO VOLUME RATIO AND DIFFUSION - Please help!

... with one another producing a random zig-zag movement Larger particles move slower, due to their larger mass and may be influenced by numerous collisions with many nearby smaller particles. Smaller particles move faster. The overall energy of movement is proportional to the square root of the ...

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by Paula78
Mon Aug 15, 2011 9:44 am
 
Forum: Cell Biology
Topic: SURFACE AREA TO VOLUME RATIO AND DIFFUSION - Please help!
Replies: 9
Views: 51571

Re: how to slow down the elongation step in protein synthesis

... can decrease the ratio of (charged aa-tRNA)/(empty tRNA) you should slow elongation due to the increased frequency of unproductive codon-anticodon collisions. I am assuming that the uncharged tRNAs would competitively inhibit loading of charged tRNAs. This could be as simple as starving the cells ...

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by jonmoulton
Tue Apr 20, 2010 8:53 pm
 
Forum: Molecular Biology
Topic: how to slow down the elongation step in protein synthesis
Replies: 1
Views: 1232

Re: Generation of DNA nucleotides

... and collision, not any form of intelligence on the part of a protein." "The chemical reactions are all driven by random moves and random collisions." "Water is very polar, and can even form clathrins around certain other charge molecules." "this means, that there are ...

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by gs99
Sat Jan 30, 2010 3:32 am
 
Forum: Molecular Biology
Topic: Generation of DNA nucleotides
Replies: 65
Views: 58267

Generation of DNA nucleotides

The chemical reactions are all driven by random moves and random collisions, just proteins are catalysts, they speed up the reaction, helping all molecules to react in the correct orientation and stuff like that. If you had e.g. ethene and hydrogen, nothing ...

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by JackBean
Fri Jan 15, 2010 4:44 pm
 
Forum: Molecular Biology
Topic: Generation of DNA nucleotides
Replies: 65
Views: 58267
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