Cryo-EM literature · Sindri Materials
Graphene and Graphene Oxide Grids for Cryo-EM
Explore the research, reported benefits and practical limitations across eight sample-preparation and imaging topics.
A curated research guide to graphene, graphene oxide and related cryo-EM supports. Studies are organized by their relevance to each topic, with material, specimen, comparator and limitations kept together.
Eight ways to explore the evidence
Preferred orientation
Can a support change how my particles orient?
A support surface can change the views a protein presents to the microscope. That change can help, preserve or worsen a preferred orientation. Surface chemistry and the specific target matter; particle enrichment alone does not demonstrate a better angular distribution.
20 papers · 9 primary / 11 secondary
Particle distribution
Can I obtain a useful density without consuming more sample?
Graphene-based surfaces can recruit particles into imageable regions. Adsorption can improve occupancy, but dense fields can also overlap, aggregate or favor particular views. The useful outcome is an adequate population of intact, well-separated particles in suitable ice.
41 papers · 16 primary / 25 secondary
Air–water interface
Can a support reduce harmful interface interactions?
A support can offer particles an alternative surface within the thin liquid film. Selected studies show improved preservation on graphene-based supports, but adsorption, damage and orientation are different observations. Protection has to be established for the particular protein and preparation.
21 papers · 9 primary / 12 secondary
Ice thickness
Can a support improve the consistency of imageable ice?
Graphene-based support designs can help shape or constrain the liquid film. The objective is ice that preserves the target and permits useful imaging across enough of the grid. The thinnest ice is not always appropriate, and a local measurement does not establish uniformity over an entire grid.
12 papers · 6 primary / 6 secondary
Background & contrast
What does the support add to the image?
Support thickness, layer count, contamination and functional coatings affect the imaging environment. The collection distinguishes monolayer graphene, GO, reduced GO and other films so that a result from one architecture is not silently transferred to another.
14 papers · 6 primary / 8 secondary
Charging & motion
Can the support improve stability during exposure?
Graphene-based supports have shown improvements in charging-related imaging behavior and beam-induced motion in specific comparisons. Charging, mechanical movement and their image effects are related but distinct. Grid architecture, beam conditions and analysis method must accompany any performance claim.
11 papers · 10 primary / 1 secondary
Reconstruction & challenging targets
Can graphene-based supports help resolve small or fragile targets?
Graphene-based supports have enabled reconstructions of small proteins and fragile complexes in particular workflows. Read small-target capability, attainable resolution and structural completeness alongside the contributing background, ice, orientation and motion evidence. A successful map is valuable evidence; a claim of better resolution or less acquisition effort additionally needs an appropriate comparison.
41 papers · 9 primary / 32 secondary
Reliability & quality
What makes a grid dependable from preparation to use?
Coverage, layer count, cleanliness, wetting, storage and survival through handling are separate quality checks. A reproducible preparation needs a defined acceptance standard and grid-level records; a favorable image is only a local observation.
35 papers · 13 primary / 22 secondary
Read the result in context
Primary and secondary describe topic relevance, not study quality or a positive outcome. A paper can contribute to several topics. This is a focused literature resource, not an exhaustive systematic review or a reanalysis of raw data.
Considering graphene for your sample?
Published findings apply to the materials and conditions tested; they do not independently validate Sindri products.
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