Production of Two Dimensional NanoTemplate in Microgravity (2D-NanoTemplate) - 05.06.15
Production of Two Dimensional NanoTemplate in Microgravity (2D-NanoTemplate) fabricates large and highly oriented nano-scale two-dimensional arranged peptide arrays by suppressing convection and sedimentation. Science Results for Everyone
Honey, I shrunk the peptides! This investigation fabricated nanoscale, two-dimensional peptide arrays by suppressing convection and sedimentation. Peptide particles on the space station were subjected to concentrated sodium hydroxide (NaOH) solution and allowed to arrange for a week in microgravity. The peptides that formed showed patterns similar to those created on the ground, indicating that their motion is not influenced by microgravity. Suppression of convection in microgravity did result in more sophisticated nanopatterns by reducing adsorption of unexpected aggregates. Semiconductor material made of the space-produced nanotemplates will likely have higher quality and performance, advancing development of high-performance computers and blue LED light applications as well as reducing semiconductor manufacturing costs. Experiment Details
Takatoshi Kinoshita, Ph.D., Nagoya Institute of Technology, Nagoya, Japan
Ryushu Ko, Nagoya University, Japan
Segio Tanaka, Nagoya University, Japan
Munehira Tanaka, Nagoya University, Japan
Brandenburg Technical University, Cottbus, Germany
Sponsoring Space Agency
Japan Aerospace Exploration Agency (JAXA)
ISS Expedition Duration
March 2010 - May 2012
Previous ISS Missions
- Production of Two Dimensional NanoTemplate in Microgravity (2D-NanoTemplate) fabricates large and highly oriented nano-scale two-dimensional arranged peptide arrays by suppressing convection, sedimentation, and buoyancy.
- The arrangement generated will be used as the template of electronic materials on Earth.
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Tanaka M, Abiko S, Himeiwa T, Nakamura M, Koshikawa N, Kinoshita T. Two-dimensional self-assembly of amphiphilic peptide at the solid/water interface toward a facile method for metal nanoparticle alignment. Chemistry Letters. 2012; 41(10): 1221-1222. DOI: 10.1246/cl.2012.1221.
Cai R, Zhao Y, Ogura K, Tanaka M, Kinoshita T, Cai Q. Self-assembled gels of amphiphilic sequential peptide in water and organic solvents. Chemistry Letters. 2011; 40(6): 617-619. DOI: 10.1246/cl.2011.617.
Nonoyama T, Tanaka M, Kinoshita T, Nagata F, Sato K, Kato K. Morphology control of calcium phosphate by mineralization on the β-sheet peptide template. Chemical Communications. 2010; 46(37): 6983-6985. DOI: 10.1039/c0cc02012e. PMID: 20730201.
Ground Based Results Publications
NASA Image: ISS024E007814 - 2D Nano Template Kit during 2D Nano Experiment Activity in US Laboratory Destiny.
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NASA Image: ISS024E007811 - View of Doug Wheelock as he retrieves 2D Nano Template sample bags from the Minus Eighty Laboratory Freezer for ISS (MELFI) in US Laboratory Destiny during Expedition 24.
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