System and method for controlling local in-situ growth of micro-nano composite material

Abstract

The invention discloses a system and method for controlling local in-situ growth of a micro-nano composite material, and the system comprises: a visual feedback observation module which consists of amicroscope and conductive glass, a microelectrode moving module which comprises a moving device, wherein a microelectrode tube is arranged on the moving device, a micro-injection pump which is used for injecting gas into the microelectrode tube so as to drop out the reaction liquid from the microelectrode, and a resistance contact feedback module which comprises an amplifier, an AD converter and acomputer which are connected in sequence, wherein the input end of the amplifier is inserted into the microelectrode tube to be connected with the reaction liquid in the microelectrode. According tothe invention, real-time control is carried out by visual feedback observation, and whether the microelectrode is in contact with the surface of the substrate material is judged by utilizing resistance value change of the resistor, so that small-area fixed-point growth of the micro-nano composite material is realized, and the precision and the controllability are good.

Description

technical field [0001] The invention belongs to the field of growth of micro-nano composite materials, and in particular relates to a system and method for controlling local in-situ growth of micro-nano composite materials. Background technique [0002] With the maturity, diversification and industrialization of micro-technology and nano-technology, micro-nano composite technology and micro-nano composite materials have emerged. Micro-nano composite materials not only have a special structure, but also contain the characteristics of micro-materials and many special properties of nano-materials, so that they have shown special application value in biology and drug detection; and because they overcome the single substrate material The disadvantage of low strength itself, especially poor mechanical properties, has received more and more attention in recent years, and related technologies have emerged in an endless stream. [0003] A Chinese patent with application number 20171...

AI Technical Summary

Problems solved by technology

[0006] Based on this, the present invention provides a system for controlling the local in-situ growth of micro-nano composite materials. The present invention uses visual feedback observation for real-time manipulation, accurately moves the reaction solution to the surface area of ​​the substrate, and then uses contact resistance as precise feedback to utilize The change of resistance value judges whether the microelectrode is in contact with the surface of the substrate material, which solves the problem that the existing technology can only grow with large area coverage, and at the same time, the precision and controllability are not good.

Images