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Bacterial Smear Preparation

Bacterial Smear – Principle, Preparation Steps, Uses, Limitations

By Sourav Pan

Sourav Pan

Academic Writer, Microbiology Specialist • M.Sc. Microbiology, Calcutta University, Founder of Biologynotesonline.com

Sourav is the founder and sole author of Biology Notes Online. He holds a Master’s degree in Microbiology from Calcutta University and has over 5 years of experience in academic writing, life science content creation. His content reflects hands-on lab expertise, deep subject knowledge, and a strong passion for simplifying biology for students. Whether it’s genetics, microscopy, or metabolic pathways — Sourav explains it in a way that’s accurate, exam-focused, and easy to remember. He regularly updates and fact-checks all the material published on this site, ensuring students get trustworthy and updated biology notes with references to real scientific sources.

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• Published on November 27, 2025 • 11 min readby Sourav Pan

A bacterial smear is a thin layer of bacterial cell/culture which is placed on a clean, grease-free microscopic slide to observe a clear image under a microscope.

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