“Integrating Molecular Switches and Machines with the Everyday World”
Sir Fraser Stoddart, PhD, Head of Northwestern’s Mechanostereochemistry Group
875 papers and publications
Briefly reviewed his work
1981 to 1998 to make a molecular switch
Spread the switch onto monolayer
Works with Jim Heath to work on crossbars
electrochemical switching of the bistable catenane (2000)
rotaxane based switch
molecular switch tunnel junction. 70nm wires and 100 nm wires
5000 molecules per junction
160 kbit molecular RAM (2007)
2500 junctions out of 160000
device is smaller than the cross section of a white blood cells
75% of the switches were bad.
10^11 bits per square centimeter.
Switches are not robust, need to put them into polymers
Bottom up – Stoddart, top down Heath
2007 160 kbit molecular device
where to go
Omar Yaghi
Beyond open reticulated geometries
Catananes and rotaxanes inside metal organic frameworks
Molecule is the crystal
Ultra high porous (a lot of space in them)
Mechanically interlocked molecules
A crown ether in a MOF
Paraquat in BORG 1
A catanane in a 2D
A MOF replete with otdered catananes
Towards 3D molecular structures
Need to add switchability to a robust MIMS with MOF structures
making of nanovalves (video) to try and develop a way to treat cancer
Simple ways to make complex molecules
Efficient and creative templated organic synthesis rapid and reliable physical measurements
Nanotech spawns new approaches to energy, nanoelectronics and photonics,
Next generation beyond cmos,
Nanomaterials and composites, nanocatalysis, nanomembranes, nanoinitiatives and grand challenges remain
How to go from switches to machines
molecular switch ==> autonomous molecular machine
Panaceanano
Make a food grade product that replaces methanol from basic chemical component
For pharma, food and other
If you liked this article, please give it a quick review on ycombinator or StumbleUpon. Thanks
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.