Japanese Government Procurement
National University Corporation - Notice of request for submission of materialsTransmission Electron Microscope for Cryo-EM 1 Set
This procurement is covered by the WTO Agreement on Government Procurement, Japan-EU Economic Partnership Agreement or Japan-UK Comprehensive Economic Partnership Agreement.
| Publishing date | Aug 21, 2020 |
|---|---|
| Type of notice | Notice of request for submission of materials |
| Procurement entity | National University Corporation - Miyagi |
| Classification |
0024 Professional/Scientific & Controlling Instruments & Apparatus |
| Summay of notice | ⑴ Classification of the products to be procured : 24 ⑵ Nature and quantity of the products to be purchased : Transmission Electron Microscope for Cryo-EM 1 Set ⑶ Type of the procurement : Purchase ⑷ Basic requirements of the procurement : Requirements for the complete set of the transmission electron microscope for cryo-EM are described below. A A transmission electron microscope for cryo-EM equipped with a cold field emission gun (FEG) a It should be equipped with a cold FEG, which produces a highly coherent electron beam. The energy resolution is supposed to be less than 0.4 eV without using a monochromator. b The accelerating voltage should be higher than 300 kV. c The automated specimen exchange system should be equipped. It must be able to contain up to 12 grids at the same time. d The system should contain a direct electron detector (DED). The physical pixel size of the DED should be less than 5 μm2 and it has 24 megapixels (5,760x4,092) field of view. The readout speed of the DED should be 1,500 full frames per second. It contains the GPU-based motion correction feature. B A vacuum evaporator This is needed to prepare amorphous carbon layer for grid preparation. a The reachable vacuum degree should be higher than 1x10-4Pa. b A cold trap should be equipped. C A glow discharger This is needed to hydrophilize the surface of the grid for grid preparation. a The size of the electrostatic shield electrode should be larger than 50 mm in its diameter. D An automated grid plunging devise This is needed to perform plunge-freezing for vitrification of specimens. a The temperature of the specimen chamber should be controllable at the range from 4℃ to 60℃. b The container should keep 1 ℓ liquid nitrogen for one hour. ⑸ Time limit for the submission of the requested material : 17 : 00 23 September, 2020 ⑹ Contact point for the notice : Shigehiro Akiyama, Procurement Services Office, Finance Department, Tohoku University, 2-1-1 Katahira Aoba-ku Sendai-shi 980-8577 Japan, TEL 022-217-4869 |
