The selective detachment of the cells is achieved by the near-IR (NIR) irradiation of the cells cultured on a dish coated by single-walled carbon nanotubes (SWNTs). The shockwave generated by the NIR pulse laser irradiation of the SWNTs plays an important role in the detachment of the cell.
By increasing the laser power as well as decreasing the depth of the cultured medium, the detached cells are readily catapulted onto the substrate placed close to the medium surface.
Such a catapulting method enables the highly-selective collection of the targeted cells of interest and is a very useful tool for single cell studies. The scanning electron microscope and PCR experiments revealed that no fragmentation occurred for the catapulted cell.
The real-time PCR analysis for the catapulted single cell revealed the retention of the genetic information.
On July 6, 2011, our article iT. Sada, T. Fujigaya, Y. Niidome, K. Nakazawa, N. Nakashima, "Near-IR Laser-triggered Target Cell Collection Using a Carbon Nanotube-based Cell-cultured Substrate", ACS Nano, 2011, 5, 4414-4421. IF=9.855 ) was introduced in Nature Nanotechnology, research highlights.
This article first appeared in the August 2011 issue of Nanotech Japan Bulletin
Mikiko Tanifuji | Research asia research news
One in 5 materials chemistry papers may be wrong, study suggests
15.12.2017 | Georgia Institute of Technology
Scientists channel graphene to understand filtration and ion transport into cells
11.12.2017 | National Institute of Standards and Technology (NIST)
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
15.12.2017 | Power and Electrical Engineering
15.12.2017 | Materials Sciences
15.12.2017 | Life Sciences