Quantifoil R2/4 Holey Carbon Films - Circular

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Shape Circular
Poisonous Yes
Density 2.1 Gram per cubic centimeter(g/cm3)
Other Names TEM grid, Quantifoil grid
Melting Point Not applicable (amorphous material)
Molecular Weight 12.01 g/mol (carbon)
Form Thin film on grid
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Quantifoil R2/4 Holey Carbon Films - Circular Product Specifications

Melting Point Not applicable (amorphous material)
Other Names TEM grid, Quantifoil grid
Density 2.1 Gram per cubic centimeter(g/cm3)
Poisonous Yes
Shape Circular
Application Sample supports for transmission electron microscopy (TEM), cryo-EM, structural biology, material science
Ph Level Neutral
Molecular Formula C
Main Material Carbon film on copper or gold grids
CAS No 7440-44-0 (carbon)
Smell Odorless
Grade Electron microscopy grade
Chemical Name Amorphous carbon film
Storage Store in a clean, dry, dust-free environment
Solubility Insoluble in water and most solvents
Structural Formula Amorphous carbon structure
HS Code 70171000
Classification Laboratory consumable
Type R2/4 holey carbon film, circular
Purity High purity carbon (>99.9%)
Standard Quantifoil manufacturing standard
Form Thin film on grid
Usage Electron microscopy sample grid, supporting thin films or biological specimens
Molecular Weight 12.01 g/mol (carbon)

Quantifoil R2/4 Holey Carbon Films - Circular Trade Information

Main Export Market(s) Western Europe, Eastern Europe, Central America, Middle East, South America, Asia, North America, Australia, Africa
Main Domestic Market All India

Product Description

Quantifoil R2/4 Holey Carbon Films - Circular

Quantifoils^®, produced by semiconductor lithographic techniques, are 15 - 20nm thick perforated carbon films with precise, well defined hole sizes, shapes and arrays. Quantifoil support films provide a high percentage of open area in addition to minimising total specimen thickness. Object distortions arising from interactions with the support film are also reduced. They are particularly suited for cryo applications, tomography and low dose microscopy (LEEP).

Circular hole, size 2µm dia, separation 4µm

Quantifoil type: R2/4

Quantifoils are supplied as 10 grids or 100 grids in a grid box.

Exceptional Support for High-Resolution Microscopy

Designed for demanding electron microscopy techniques, Quantifoil R2/4 Holey Carbon Films offer uniform hole distribution and outstanding film quality. Their high electron transparency and consistent geometry enable reliable imaging of delicate samples, from biological macromolecules to nanomaterials. Suitable for transmission electron microscopy, cryo-EM, and negative staining, these grids help achieve clear, interpretable results in research and diagnostic settings.

Flexible Grid Options and Custom Treatments

Available with copper or gold grids and a selection of 200, 300, or 400 mesh sizes, these films cater to diverse experimental needs. Optional glow discharge treatment enhances hydrophilicity, facilitating better sample adhesion. All grids are packaged in protective boxes for optimal cleanliness and safekeeping, ensuring each film arrives in pristine condition for immediate laboratory use.

FAQs of Quantifoil R2/4 Holey Carbon Films - Circular:

Q: How should Quantifoil R2/4 Holey Carbon Films be stored before use?

A: Store the films in a clean, dry, and dust-free environment to maintain their integrity. They are supplied in protective grid boxes, which should remain closed until you are ready to mount a sample.

Q: What techniques are these Quantifoil grids compatible with?

A: They are designed for transmission electron microscopy (TEM), cryo-electron microscopy (cryo-EM), and negative staining, making them ideal for use in structural biology, materials science, and related fields.

Q: When is it recommended to opt for glow-discharged (hydrophilic) grids?

A: Glow-discharged grids are especially beneficial when working with aqueous or biological samples, as increased surface hydrophilicity promotes better specimen spreading and adherence to the carbon film.

Q: Where are these Quantifoil R2/4 grids typically used?

A: These grids are widely utilized in laboratories conducting high-resolution electron microscopy research, including academic, clinical, and industrial facilities, particularly in the United Kingdom and globally.

Q: What is the process for ordering specific mesh sizes or support materials?

A: When placing an order, specify the required mesh count (200, 300, or 400) and whether you prefer copper or gold grids. Additional treatments like glow discharge can also be requested as part of your order.

Q: How are these films beneficial compared to other grid types?

A: Quantifoil R2/4 grids provide uniform hole sizes and spacing, facilitating reduced sample drift, improved ice thickness control in cryo-EM, and enhanced imaging contrast for detailed structural analysis.

Q: Can these Quantifoil grids be reused after sample preparation?

A: No, Quantifoil R2/4 Holey Carbon Films are intended for single-use applications and should not be autoclaved or reused to prevent potential contamination and ensure optimal imaging quality.

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