Search found 7 matches

by Jarek
Wed Sep 03, 2008 2:38 pm
Forum: General Discussion
Topic: Can organisms feed with vibrations or thermal infrared?
Replies: 1
Views: 3541

Re: Can organisms feed with vibrations or thermal infrared?

I was thinking about 2nd law of thermodynamics and crystallization. During this process we get higher ordering (lower entropy), but the cost is energy difference between free and bind molecule - this energy is usually just dispersed around, increasing general temperature. But what if we wouldn't all...
by Jarek
Fri Aug 22, 2008 5:33 pm
Forum: General Discussion
Topic: Chiral life concept
Replies: 1
Views: 1698

Chiral life concept

Imagine that we take mirror reflection of a cell - change each molecule into its enantiomer. In physics it's called parity transform - it's not perfectly conserved, but the differences of energies are many orders of magnitude smaller than thermal noise in biochemistry - such cell should function pro...
by Jarek
Wed Aug 20, 2008 12:14 pm
Forum: General Discussion
Topic: Trap for viruses...
Replies: 6
Views: 5161

Re: Trap for viruses...

I've completely forgotten that viral envelop proteins stays in the membrane... These proteins can make more difficult entering more viruses to already infected cell (they could infect different cell and it affects very precise infection mechanism so in summarize there should be produced smaller amou...
by Jarek
Mon Aug 18, 2008 3:44 pm
Forum: General Discussion
Topic: Trap for viruses...
Replies: 6
Views: 5161

Re: Trap for viruses...

Yes, I've just get know it from another forum - there are more details if someone is interested:
http://www.thescienceforum.com/viewtopic.php?p=140400
by Jarek
Sun Aug 17, 2008 9:17 pm
Forum: General Discussion
Topic: Trap for viruses...
Replies: 6
Views: 5161

Re: Trap for viruses...

? from wiki: "A decoy receptor, or sink receptor [2], is a receptor that binds a ligand, inhibiting it from binding to its normal receptor. For instance, the receptor VEGFR-1 can prevent vascular endothelial growth factor (VEGF) from binding to the VEGFR-2[2]" I'm not talking about blockin...
by Jarek
Sun Aug 17, 2008 6:52 am
Forum: General Discussion
Topic: Trap for viruses...
Replies: 6
Views: 5161

Trap for viruses...

Standard approach to fight with viruses is to use antigens which search for some specific place on it's surface, but the problem is that the capsid is varying rapidly. What usually doesn't change is that the virus still targets to the same molecules on cell's surface - maybe we should try to use it....
by Jarek
Tue Aug 12, 2008 4:29 pm
Forum: General Discussion
Topic: Can organisms feed with vibrations or thermal infrared?
Replies: 1
Views: 3541

Can organisms feed with vibrations or thermal infrared?

In microscopic scale chemical reactions are reversible - the dominant direction depends of parameters (like ATPase H+). Myosin can change energy stored in ATP into movement. It's functions are too directed, too complicated to be reversed in practice. But imagine simpler protein which is physically c...