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Heat sink type cryogenic biological sample platform for scanning probe microscope

A biological sample, scanning probe technology, applied in scanning probe technology, microscopes, instrument parts and other directions, can solve problems such as high price and complex structure, and achieve the effect of simple structure and low price

Inactive Publication Date: 2004-03-03
LOW TEMPERATURE TEST CENT CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This device also has the problems of complicated structure and high price

Method used

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  • Heat sink type cryogenic biological sample platform for scanning probe microscope
  • Heat sink type cryogenic biological sample platform for scanning probe microscope
  • Heat sink type cryogenic biological sample platform for scanning probe microscope

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Embodiment Construction

[0023] Further describe the present invention below in conjunction with accompanying drawing and specific embodiment:

[0024] As can be seen from the figure, the heat sink type cryogenic biological sample platform for scanning probe microscope provided by the present invention includes two parts: heat sink A and vacuum cover 9 connected with vacuum pump 10, heat sink A is placed between vacuum cover 9 Middle; the heat sink A is made up of a solid thin-neck sample stage 13 made of a material with a large specific heat capacity and a vacuum imaging cavity 6, and the top of the thin neck 14 of the solid thin-neck sample stage 13 is fixedly installed with a table 1 for placing low-temperature biological samples , a temperature sensor 11 is installed on the table top 1, a molecular sieve 4 is housed in the groove on the lower large table of the solid thin-necked sample table 13, and the outer surface of the lower large table of the solid thin-necked sample table 13 is covered with ...

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Abstract

The heat sink type cryogenic biological sample platform consists of vacuum imaging cavity and thin-neck sample table inside the cavity. The sample table has table top with temperature sensor fixed in the top of the thin neck, molecular sieve installed in the channel of the lower large tablet top, insulating layer covering its surface, thin neck extending beyond the cavity, and low expansion thin wall alloy tube around it. The upper and lower ends of the thin wall alloy tube are welded respecrively to the table top and the vacuum imaging cavity cover plate. The platform has simple structure and low cost, and may be matched with common scanning probe microscope without need of expensive equipment and its working range may be expanded to lower temperature.

Description

field of invention [0001] The present invention relates to a biological sample platform, in particular to a platform for scanning probe microscopes which can be used with almost all scanning probe microscopes and whose initial temperature can be preset so as to maintain nanoscale biological samples below a certain freezing point temperature. The heat sink type low temperature biological sample platform can extend the function of ordinary scanning probe microscope to the range from freezing point temperature to lower temperature, and can also be used as a general low temperature material science observation platform, and has a simple structure and low price. Background technique [0002] Life processes occur at three spatial scales: the nanoscale, which relates to the behavior of organic molecules, the microscale, which relates to the behavior of individual cells within tissues, and the macroscale, which relates to the behavior of whole biological organisms. Low temperatures ...

Claims

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Application Information

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IPC IPC(8): G01Q30/08G02B21/28
Inventor 刘静周一欣
Owner LOW TEMPERATURE TEST CENT CHINESE ACAD OF SCI
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