Micro-nano device

Abstract

The invention discloses a micro-nano device. The device includes multiple modules, each of the modules comprises a substrate having a plurality of concave pits and nanoparticle aggregates self-assembled in the concave pits, and the average size of the nanoparticle aggregates in the different modules is different; and the micro-nano device of the invention has the characteristics of simultaneouslyperforming functions such as detection, catalysis and degradation on a plurality of substances, and has the advantages of wide matching range and strong universality.

Description

Technical field [0001] The invention belongs to the field of micro-nano functional devices, and specifically relates to a micro-nano device. Background technique [0002] At the micro-nano scale, the properties of materials will change drastically. Although the mechanical theory of the macroscopic world has been fully developed, there is no mature theoretical system to describe the mechanical properties and internal mechanisms of micro-nano-scale materials. . And some special micro-nano structure devices have unique catalytic and photoelectric properties, which make a large number of researchers to study. [0003] At present, the research direction of micro-nano devices is basically to maintain uniformity and prepare controllable and reproducible micro-nano devices. However, in practical applications, such as catalysis or detection, it is difficult to use when it has an effect on multiple substances. A single micro-nano device (a single particle size nanomaterial may only have a ...

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Problems solved by technology

[0003] At present, the direction of research on micro-nano devices is basically to maintain uniformity and prepare controllable and repeatable micro-nano devices. However, in practical applications, such as catalysis or detection, it is difficult to use when it needs to act on multiple substances. It can be realized by a single micro-nano device (nanomaterials with a single particle size may only have a significant catalytic effect on a specific substance). If you don’t know what kind of substance you need to detect, you may need to try one by one, which will undoubtedly increase the workload and increase the work cost, especially in the field of SERS (Surface Enhanced Raman Scattering) detection. The big difficulty is that the samples to be tested require complicated pre-treatment, otherwise the samples to be tested have many interfering substances, and it is difficult to obtain accurate qualitative or quantitative signals

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