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- Path: sparky!uunet!gatech!rutgers!igor.rutgers.edu!planchet.rutgers.edu!nanotech
- From: ttf@iti.org (Tihamer T. Toth-Fejel)
- Newsgroups: sci.nanotech
- Subject: Re: Self Replication vs. Bootstrapping
- Message-ID: <Aug.14.00.10.19.1992.365@planchet.rutgers.edu>
- Date: 14 Aug 92 04:10:26 GMT
- Sender: nanotech@planchet.rutgers.edu
- Lines: 37
- Approved: nanotech@aramis.rutgers.edu
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- Holding an enzyme between two atoms doesn't sound v.practical
- to me. Enzymes are v. large mol.wt's around 30,000 and also
- highly flexible.
- You're right. What I really meant was the putting the active site
- on the tip of an STM.
-
- single atom approaches are a little ambitious for this time and
- we aught to be talking about an initial approach based on using
- clever chemistry to "bootstrap" the first devices.
- Theoretically, there are three "paths" to full blown nanotechnology:
- STM, chemistry, and IC semiconductor manufacturing. Albrech has done
- some really neat work in combining STM and IC semiconductor manufacturing,
- advancing both (IMHO), and putting an active site (or an array of active
- sites) on the tip of a probe would combine the first two. In many respects,
- the microphotolithography used in electronic IC manufacturing and micromechanical
- devices *is* chemistry, but I think for chemistry to be clever,
- we need to be able to work with smaller amounts - i.e. use Feymann's approach
- of intermediate micro-manipulators.
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- we would have to have constructed a wide range of far simpler nano-tools
- before constructing anything programmable anything became plausible.
- yes, the simpler nanotools come first. I was engaged in design-ahead.
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- we always use PDB (Brookhaven) files to transfer structures.
- I'm not familiar with the format. Do you have a pointer?
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- But lots of software exists that will read them and often
- automatically assign the atoms and bonds.
- Lots of software? Do you have any names and company phone numbers?
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- By what criteria should we assess the designs ?
- i) Chemical stability ?
- ii) Ease of construction ?
- iii) Compatability with other designs ?
- All three, of course!
-