A sandwich-embedding method for oriented sectioning.

High-quality sections are indispensable for many scientific studies. Most published methods are often time-consuming or require special devices. We present an easy, quick and low-cost method for oriented embedding of thin structures using glycol methacrylate resin and self-constructed, reusable embedding tools made of overhead transparencies. This technique allows for more flexibility in orientation than other methods, enabling precise transverse, longitudinal and even oblique sectioning.