Syracuse dish

A Syracuse dish or Syracuse watch glass is a specialized piece of laboratory equipment primarily used in the field of biology for the storage and culturing of samples. It is a shallow, circular, flat-bottomed dish crafted from thick glass, designed to facilitate microscopic observation and manipulation of samples, especially in nematology, the study of nematodes.

Description

The Syracuse dish distinguishes itself from other petri dishes and watch glasses by its specific dimensions and design. Typically, it measures 67 mm in outer diameter and 52 mm in inner diameter, offering a clear and wide area for observation while minimizing the volume of liquid required, thus making it ideal for microscopic examinations.

Background

The introduction of the Syracuse dish to biological research can be traced back to Nathan Cobb, a pioneer of nematology in the United States. In 1918, Cobb proposed the use of the Syracuse dish as an innovative tool for counting nematodes, significantly contributing to the methodology of nematode research. His advocacy for this tool underscored its value in enhancing the accuracy and efficiency of nematode studies.

Uses

In the realm of biology, the Syracuse dish is utilized not only for the storage of biological samples but also for their cultivation. It is particularly advantageous for:

• Microscopic Examination: The dish's shallow depth and clear glass construction allow for detailed microscopic observation of specimens, including nematodes, without the need for transferring them to a separate slide.
• Culturing Samples: Its design facilitates the culturing of small organisms or cells under controlled conditions, providing an ideal environment for growth and observation over time.
• Counting Organisms: Following in the footsteps of Nathan Cobb, researchers continue to use Syracuse dishes for counting small organisms, such as nematodes, due to the ease of sample distribution and visibility.

Advantages

The Syracuse dish offers several benefits over traditional laboratory dishes:

• It requires a smaller volume of liquid, reducing waste and the cost of reagents.
• The flat bottom and uniform thickness ensure consistent sample illumination and visibility under a microscope.
• Its robust construction makes it durable and reusable, aligning with sustainable laboratory practices.

Conclusion

The Syracuse dish remains a valuable tool in biological research, particularly in studies requiring precise observation and cultivation of microscopic organisms. Its design and utility embody the intersection of simplicity and functionality, making it a staple in laboratories specializing in nematology and other microscopic studies.

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