1. Real-time nanodiamond thermometry probing in vivo thermogenic responses
- Author
-
Keisuke Oshimi, Oliver Benson, Yuka Takezawa, Nikola Sadzak, Simo Sun, Eriko Kage-Nakadai, Yumi Umehara, Yushi Nishimura, Naoki Komatsu, Li Zhao, Yoshio Teki, Yutaka Shikano, Masazumi Fujiwara, Alexander Dohms, and Ken Suto
- Subjects
Temperature monitoring ,Microscope ,Materials science ,蛍光ナノダイヤモンド ,Quantitative Biology::Tissues and Organs ,Caenorhabditis elegans worm ,Biophysics ,Energy metabolism ,Physics::Optics ,FOS: Physical sciences ,Tracking (particle physics) ,Quantitative Biology - Quantitative Methods ,law.invention ,Quantitative Biology::Cell Behavior ,Direct measure ,線虫 ,Quantitative Biology::Subcellular Processes ,mobile nanodaiamonds ,Chemical stimuli ,optically assessible electron spins ,law ,In vivo ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,光検出磁気共鳴法 ,Physics - Biological Physics ,Sample chamber ,Nanodiamond ,Research Articles ,Quantitative Methods (q-bio.QM) ,Quantum Physics ,Multidisciplinary ,Condensed Matter - Mesoscale and Nanoscale Physics ,Chemistry ,Physics ,量子温度計測 ,technology, industry, and agriculture ,SciAdv r-articles ,Thermoregulation ,Biocompatible material ,equipment and supplies ,Biological Physics (physics.bio-ph) ,FOS: Biological sciences ,Quantum Physics (quant-ph) ,quantum nanothermometers ,Research Article - Abstract
Real-time temperature monitoring inside living organisms provides a direct measure of their biological activities. However, it is challenging to reduce the size of biocompatible thermometers down to submicrometers, despite their potential applications for the thermal imaging of subtissue structures with single-cell resolution. Here, using quantum nanothermometers based on optically accessible electron spins in nanodiamonds, we demonstrate in vivo real-time temperature monitoring inside Caenorhabditis elegans worms. We developed a microscope system that integrates a quick-docking sample chamber, particle tracking, and an error correction filter for temperature monitoring of mobile nanodiamonds inside live adult worms with a precision of ±0.22°C. With this system, we determined temperature increases based on the worms’ thermogenic responses during the chemical stimuli of mitochondrial uncouplers. Our technique demonstrates the submicrometer localization of temperature information in living animals and direct identification of their pharmacological thermogenesis, which may allow for quantification of their biological activities based on temperature., 蛍光ナノダイヤモンドを用いた量子温度計により動物個体の発熱を捉えることに成功. 京都大学プレスリリース. 2020-09-25., Get diamonds, take temperature. 京都大学プレスリリース. 2020-10-06.
- Published
- 2020