Provide a latest product, a super stable porous gold film, to the vast number of electron microscope users, mainly to solve the problem of movement of frozen samples on the film observed by electron microscopy. Gold film can improve the contrast and quality of images, making it easier to further apply this limited information3DReconstruction work. Carbon film is usually used for cryo electron microscopy. When electron irradiation begins, the movement of the sample will make the image blurry, which will increase the difficulty of determining the molecular structure. Gold film precisely overcomes this difficulty.(For details see: Ultrastable gold substrates for electron cryomicroscopy, Science, 2014, Vol. 346 no. 6215 pp. 1377-1380).

The thickness of the perforated gold film is approximately50nmThe hole pattern of the gold film is similarQuantifoilThe gold mesh used inside the membrane (circular hole type, square array arrangement) has 200 mesh and 300 mesh.

1. Why use gold to make porous membranes?

Gold has excellent conductivity, non oxidation, and ultra short wave radiation. The surface of the gold film exhibits chemical inertness and biocompatibility.

2. Why choose Jinwang?

The main consideration is to ensure that the gold mesh and the film material on it are the same during sample cooling, which can eliminate thermal shrinkage differences; Prevent changes in the geometry and tension of the gold film.