Hard tissues of organisms, such as bones and shells, are composed of inorganic minerals (biominerals). While these substances are created by biomineralization, which will be discussed later, many uncertainties remain in the mechanism.
Research scientists at Tohoku University have been conducting studies designed to elucidate the crystal growth mechanisms of shells, in which a calcium carbonate crystal, which is normally stable only in a high-pressure phase, is formed under normal temperature and pressure conditions.
It is necessary to observe the atomic structural changes of the growing crystal surface in solution. Under such circumstances, a system capable of high-resolution surface observation in a liquid environment would be ideal.
Tsukamoto and Araki learned that the atomic force microscope (AFM) probe system developed by the Yamada group at Kyoto University could operate under such conditions and was available for use via the Kyoto Advanced Nanotechnology Network; an application was made for joint utilization and support.
By using the FM-AFM system, based on leading-edge frequency-modulation atomic force microscope (FM-AFM) technology, they successfully observed the calcium carbonate crystal growth process in solution on the atomic level.
Atomic structure of ultrasound material not what anyone expected
21.02.2018 | North Carolina State University
Hidden talents: Converting heat into electricity with pencil and paper
20.02.2018 | Helmholtz-Zentrum Berlin für Materialien und Energie
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
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21.02.2018 | Life Sciences
21.02.2018 | Life Sciences
21.02.2018 | Materials Sciences