UltrAuFoil Holey Gold Films

Product Description

These recently developed ultra-stable gold supports for electron cryomicroscopy reduce the movement of frozen specimens during imaging. This improves image contrast and quality leading to better 3D reconstruction in TEM tomography applications.

During imaging at cryo-temperatures, traditional carbon supports move, particularly at the beginning of irradiation. This movement blurs images and makes it difficult to determine the structures of small and challenging molecules

Characteristics of UltrAuFoil

• Thickness of gold foil: approx 500
• Structure of gold foil: regular square array of micrometer-sized circular holes
• Geometry: R1.2/1.3 R0.6/1 and R2/2
• Gold 300 mesh (R0.6/1 or R1.2/1.3 geometry)
• Gold 200 mesh (R2/2 geometry)
• Other types are also available

Using UltrAuFoils^®, designed at MRC's Laboratory of Molecular Biology by Dr Christopher J Russo and Dr Lori A Passmore and produced by Quantifoil Micro Tools, specimen motion can be reduced significantly.

Precision for High-Resolution Imaging

The regular hole array pattern and ultra-flat gold film of UltrAuFoil grids deliver superior image clarity and consistency. Their surface properties enhance particle distribution, making them ideal for demanding cryo-EM and tomography workflows where resolution and reproducibility are essential.


Engineered for Compatibility and Reliability

These grids are meticulously crafted to match Krios Autogrid specifications. With robust construction, and high durability against mechanical stress, UltrAuFoil Holey Gold Films retain their performance through freezing and handling, resulting in more reliable sample preparation and reduced grid waste.


Pure Gold InnovationNo Added Carbon

Constructed solely from ultra-pure (>99.99%) gold, these grids offer unparalleled electrical conductivity and electron transparency. Their design eliminates the need for additional carbon support, minimizing background noise and maximizing data quality for precision electron microscopy applications.