Molecular nanotechnology in aerospace 1999
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Molecular Nanotechnology in Aerospace: 1999. Dream: 10 18 MIPS computers [Drexler 1992a] 10 15 bytes/cm 2 write once memory [Bauschlicher 1997] Three ton 4 person SSTO [Drexler 1992b]. Al Globus Veridian-MRJ Technology Solutions, Inc. at NASA Ames Research Center.

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Molecular nanotechnology in aerospace 1999 l.jpg

Molecular Nanotechnology in Aerospace: 1999

  • Dream:

  • 1018 MIPS computers [Drexler 1992a]

  • 1015 bytes/cm2 write once memory [Bauschlicher 1997]

  • Three ton 4 person SSTO [Drexler 1992b]

Al Globus

Veridian-MRJ Technology Solutions, Inc.

at NASA Ames Research Center

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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Three Pillars of Molecular Nanotechnology

  • Atomically precise control of matter

  • Molecular machines

  • Programmable matter

Our favorite molecules:

carbon Nanotubes

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


Atomically precise control of matter l.jpg
Atomically Precise Control of Matter

http://www.almaden.ibm.com:80~/vis/stm/atomo.html

[Dekker 1999]

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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Molecular Machines

[Cassell 1999]

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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Programmable Matter

  • Numerical Machine Tools

  • Fabbers

http://www.Ennex.com/fabbers/uses.sht

  • DNA, RNA, Polypeptide sequencers

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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Programmed Molecules for Sale

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


Applications l.jpg
Applications

  • Computers

    • Design, simulate

    • Control

    • Test

  • H2 Storage

  • Materials

    • Strong

    • Heat tolerant

    • Smart and active

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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NanoComputer Components

[Tans 1998]

[Reed 1998]

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


Nanocomputer architecture l.jpg
NanoComputer Architecture

  • Teramac [Heath 1998]

    • Requires unreliable

      • Wires

      • Devices connecting the wires

    • in a 2D grid

  • Molecular implementation [Collier 1999]

    • Lithographically fabricated metal wires

    • Monolayer of redox-active rotaxane switches

    • Aiming for memory chip soon

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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CNT H2 Storage

Source: Deepak Srivastava, MRJ at NASA Ames

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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Materials

  • Improved strength

    • Young’s modulus:

      • Steel: 0.2 TeraPascals

      • SWCNT: 1.2 TeraPascals

  • Smart paint

  • Active materials

Source: Deepak Srivastava

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


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Polybot Replication

parts

Growth

Replication

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/


Summary l.jpg
Summary

  • Molecular nanotechnology

    • Atomically precise control of matter

    • Molecular machines

    • Programmable matter

  • Aerospace applications

    • Computers

    • H2 Storage

    • Materials (sensors/actuators)

  • Major challenge: replication

http://www.nas.nasa.gov/Pubs/TechReports/NASreports/NAS-00-001/