Prospecção do uso e reaproveitamento de grids para a microscopia eletrônica de transmissão (MET)

Abstract

Transmission electron microscopy (TEM) is explored in the most diverse areas, given its great resolving power when compared to other microscopes. These analyzes are only performed due to an extremely important piece that serves as the support of the studied specimens, the grids. However, this tiny part has relatively high costs. Still, TEM grids are usually used once and then discarded, at least that's what you'd expect when consulting available bibliographies. However, it is known in the academic world that there are possibilities of reusing these grids, after a previous cleaning and replacement of the coating films. Thus, it is proposed a literature review seeking to map the applications of transmission electron microscopy in the reuse of grids and, in parallel, analyze the use of the main types of grids used in the observation of inorganic, biological, organic samples and areas related to TEM techniques. Thus, using databases Scopus and Web of Science databases, articles in the area of interest are collected using very well- defined search strategies These results were catalogued, read, filed and later organized into tables and graphs for their analysis and discussion. The argumentation of this work was divided into two moments, the first about the applicability of grids and their most relevant characteristics for each area and the second focusing completely on knowledge about the reuse of grids.