Introduction

Lacey Carbon Film TEM Grids feature a randomly structured, web-like carbon support film characterized by large irregular open areas interconnected by thin carbon strands. Unlike lacey carbon films, which form a sparse web-like network with large irregular openings, holey carbon films typically exhibit smaller perforations within a more continuous carbon framework.

This configuration provides extensive unsupported regions while maintaining sufficient carbon framework for specimen stability, making it well suited for advanced transmission electron microscopy (TEM) and cryo-electron microscopy (cryo-EM) applications.

Structure and Film Characteristics

Lacey carbon films consist of:

• A randomly distributed carbon network
• Large irregular open regions
• Variable strand (string) width
• Non-uniform geometry

The carbon strands form an interconnected framework with no defined hole size or periodic arrangement. Both the open areas and the strand thickness vary across the grid.

This irregular structure distinguishes lacey films from holey carbon films, which typically exhibit more defined perforation patterns.

Key Advantages

Lacey Carbon Film TEM Grids provide:

• Large suspended imaging regions
• Minimal background support interference
• Flexible imaging area selection
• Reduced substrate interaction for certain specimens
• Suitable support for delicate or beam-sensitive samples

The extensive open regions make lacey carbon particularly useful when larger unsupported spans are required.

Applications

Lacey Carbon Film TEM Grids are widely used in:

• Cryo-electron microscopy (cryo-EM)
• Nanoparticle and nanomaterial analysis
• Thin film studies
• Advanced materials characterization
• Specimens requiring large suspended areas

For enhanced beam stability, explore our:

• Formvar-Carbon Double Film TEM Grids
• Continuous Carbon Film TEM Grids

For applications requiring perforated support, explore our:

• Holey Carbon Film TEM Grids
• Holey Carbon Film TEM Grids with Continuous Carbon Coating
• Lacey Carbon Film TEM Grids
• Lacey Carbon Film TEM Grids with Continuous Carbon Coating

Available Base Grid Materials

• Copper TEM grids
• Molybdenum TEM grids

Multiple mesh sizes (e.g., 200, 300, 400 mesh) are available to match your imaging requirements. Copper and molybdenum substrates are available as standard. Additional base materials - including tungsten, nickel, titanium, and nylon - are available upon request. Please contact us to discuss custom grid configurations.

Manufacturing and Quality Control