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Tanii Lab
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A lab that uses nanofabrication to build devices linking diamond quantum sensors and cells.
AboutAbout the lab
Fabricating and measuring the nanoscale world
Tanii Lab studies molecular nanoengineering, which makes use of materials and phenomena at the scale of nanometers.
Using microfabrication technology, the lab creates quantum devices based on single atoms, as well as nanospaces suited to examining cells and biomolecules.
The research is divided into two groups: quantum sensing and biointerfaces.
Aiming to develop next-generation analytical systems, the lab works on building new microsystems.
Key terms
- NV center
- A defect in a diamond crystal in which a carbon atom has been replaced by a nitrogen atom next to a vacancy (a missing atom)
- Quantum sensing
- Technology that reads changes in quantum mechanical states to precisely measure magnetic fields, temperature, and more
- Microfabrication technology
- Technology developed in semiconductor manufacturing for creating very small structures on a substrate
ResearchResearch themes
Tanii Lab pursues molecular nanoengineering research that uses nanomaterials and nanoscale phenomena. The research is divided into two groups: quantum sensing, which uses defects in diamond, and biointerfaces, which connect cells with artificial objects.
*Illustrative imageDetecting nuclear spins in diamond
Using NV centers in diamond as quantum sensors, the lab detects very small numbers of nuclear spins. By fabricating nanopillar structures on the surface, it has also succeeded in obtaining clearer spectra.
*Illustrative imageSingle-photon sources that work at room temperature
SiV centers in diamond are expected to serve as single-photon sources that operate stably at room temperature. The lab is researching how to make photons easier to extract by fabricating nanopillar structures on the substrate surface.
*Illustrative imageFluorescent nanodiamonds that glow in response to electric potential
Nanodiamonds containing NV centers change their fluorescence color depending on their charge state. Turning this instability to advantage, the lab researches using them as local sensors that respond to changes in the surrounding environment.
*Illustrative imageDelivering substances directly into cells
The lab researches a method in which a membrane lined with nanotubes is pressed onto cells from above, opening holes in the cell membrane to deliver substances directly inside. It allows highly efficient introduction while the cells remain alive.
MembersFaculty
- ProfessorTakashi Tanii
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Raw light brown diamond crystal cut in half 1” W.carter / CC BY-SA 4.0 (cropped)
- Detecting nuclear spins in diamond: “Magnetic field around solenoid” Maciej J. Mrowinski / CC BY-SA 4.0 (cropped)
- Single-photon sources that work at room temperature: “Ion implantation machine at LAAS 0522” Guillaume Paumier / CC BY-SA 3.0 (cropped)
- Fluorescent nanodiamonds that glow in response to electric potential: “Colorful chameleon in Palmarium Reserve, Manambato, Madagascar” Andrinivo / CC BY-SA 4.0 (cropped)
- Delivering substances directly into cells: “HeLa-Tubulin-HSP60-Fibrillarin-DNA” GerryShaw / CC BY-SA 4.0 (cropped)
- Related lab (出浦研究室): “Blue light emitting diodes over a proto-board” Gussisaurio / CC BY-SA 3.0 (cropped)
- Related lab (渡邉研究室): “Multicrystalline silicon wafer with thin film iridescence” Radiotrefoil / CC BY-SA 4.0 (cropped)
- Related lab (内野研究室): “Cold atoms experiment 04” Tomasz Kawalec / CC BY-SA 4.0 (cropped)
- Related lab (川西研究室): “Antenna of Airport Surveillance Radar” FBuHL09 / CC BY-SA 4.0 (cropped)
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