Quantifoil R2/2 Holey Carbon Films - Circular

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Product Details:

HS Code 9027.90.00
Smell Odorless
Melting Point N/A (carbon film thermally stable up to ~400C in vacuum)
Form Ultra-thin film on metal grid
Storage Room temperature, dry conditions, avoid contamination
Purity >99.99% (carbon layer)
Density 2.0 Gram per cubic centimeter(g/cm3)
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Quantifoil R2/2 Holey Carbon Films - Circular Product Specifications

Structural Formula Amorphous carbon (no fixed structure)
Molecular Weight 12.01 g/mol
Usage Cryo-EM, TEM, and high-resolution imaging
Shape Circular film
Molecular Formula C
Solubility Insoluble in water
Poisonous Yes
Ph Level Neutral (pH not applicable for solid)
Boiling point Not applicable (sublimes at high temperatures)
Smell Odorless
HS Code 9027.90.00
Melting Point N/A (carbon film thermally stable up to ~400C in vacuum)
Classification Microscopy accessory
Form Ultra-thin film on metal grid
CAS No 7440-44-0 (Carbon)
Grade Analytical grade for scientific research
Storage Room temperature, dry conditions, avoid contamination
Application Electron microscopy sample support grids
Purity >99.99% (carbon layer)
Main Material Ultra-thin amorphous carbon film on copper, gold, or nickel grids
Other Names Quantifoil holey carbon grid
Type Holey Carbon Support Film (Quantifoil R2/2)
Standard Conforms to scientific microscopy standards
Density 2.0 Gram per cubic centimeter(g/cm3)
Chemical Name Amorphous Carbon

Surface Quality Smooth, even with consistent hole pattern
Handling Use anti-static and clean tools to avoid damage
Grid Mesh Size 200, 300, or custom mesh options
Film Thickness ~1220 nm
Product Code Quantifoil R2/2 Circular
Grid Material Copper, gold, or other metal
Hole Size 2 m
Hole Spacing 2 m center-to-center
Packaging Individual grid storage in grid boxes or cassette
Compatibility Cryo-EM, TEM, SEM sample preparation
Grid Diameter Typically 3.05 mm (standard EM grid)

Quantifoil R2/2 Holey Carbon Films - Circular Trade Information

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

Product Description

Quantifoil R2/2 Holey Carbon Films - Circular

Quantifoils, produced by semiconductor lithographic techniques, are 15 - 20nm thick perforated carbon films with precise, well defined holesizes, 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 2m dia, separation 2m
Quantifoils are supplied as 10 grids or 100 grids in a grid box.

High-Performance Support for Electron Microscopy

Quantifoil R2/2 Holey Carbon Films deliver superior specimen support for various electron microscopy applications, including cryo-EM, TEM, and SEM. The even distribution of 2 m holes ensures minimal background and optimal imaging conditions, while the ultra-thin carbon layer offers high transparency and stability during imaging and sample preparation.

Reliable Construction with Consistent Quality

Manufactured with analytical-grade amorphous carbon (>99.99% purity) on durable metal grids (copper, gold, or nickel), these films demonstrate exceptional reliability. The precise hole pattern and stable film thickness (1220 nm) provide smooth, uniform surfaces, meeting or exceeding modern scientific microscopy standards and ensuring reproducible results for research and analysis.

FAQs of Quantifoil R2/2 Holey Carbon Films - Circular:

Q: How should I handle and store Quantifoil R2/2 Holey Carbon Films to avoid damage or contamination?

A: Handle the grids using anti-static, clean tweezers or gloves to prevent film damage and contamination. Store them in grid boxes or cassettes in a dry environment at room temperature, away from dust and chemicals, to maintain surface quality.

Q: What applications are Quantifoil R2/2 Holey Carbon Films suitable for in electron microscopy?

A: These films are designed for use as sample supports in cryo-electron microscopy (cryo-EM), transmission electron microscopy (TEM), and scanning electron microscopy (SEM), particularly for high-resolution imaging and research involving biological or material science specimens.

Q: When should I choose a 200 or 300 mesh size for these grids?

A: Select the mesh size based on sample requirements and instrument compatibility. A 200 mesh provides larger open areas for larger specimens, while 300 mesh offers greater grid stability and is suitable for smaller samples or higher magnification work.

Q: Where can I order Quantifoil R2/2 Holey Carbon Films, and are they available for international supply?

A: These films are widely available through dealers, exporters, importers, manufacturers, suppliers, and retailers in the United Kingdom and can be sourced internationally via scientific product distributors.

Q: What are the benefits of using Quantifoil R2/2 Holey Carbon Films over other sample supports?

A: The films offer exceptional mechanical stability, high transparency, and a highly consistent hole pattern, reducing background interference in imaging, enabling accurate, reproducible results, and supporting advanced techniques like cryo-EM at the nanoscale.

Q: How are Quantifoil R2/2 Holey Carbon Films prepared and packaged for shipping?

A: Each grid is individually stored in protective grid boxes or cassettes to prevent mechanical and environmental damage during transit, ensuring they arrive ready for immediate use without risk of contamination.

Q: What is the process for loading specimens onto Quantifoil R2/2 grids for cryo-EM preparation?

A: Specimens are typically applied to the carbon film, blotted to remove excess liquid, and rapidly vitrified by plunging into cryogenic liquid. The uniform hole pattern facilitates even specimen distribution and optimal imaging during data collection.

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