Recent Advances in Scanning Electrochemical Microscopy for Biological Applications

Area of Science:

• * Electrochemistry
• * Chemical Microscopy
• * Biological Sciences

Background:

• * Scanning electrochemical microscopy (SECM) is a powerful chemical microscopy technique.
• * It provides high spatial resolution for imaging topography and mapping chemical species in liquid environments.
• * Advancements in ultramicroelectrodes (UMEs) and computer-controlled measurements have expanded SECM's use in biological studies over 30 years.

Purpose of the Study:

• * To review the basic principles of SECM.
• * To provide an updated overview of SECM applications in biological studies.
• * To discuss the potential of SECM for investigating bacterial and biofilm activities.

Main Methods:

• * Introduction to the fundamental principles of SECM.
• * Review of recent methodological breakthroughs popularizing SECM for molecular-level chemical reactions.
• * Discussion of common SECM applications in biological systems.

Main Results:

• * SECM is widely used for studying enzymes, DNA, proteins, and living cells.
• * It enables monitoring of biological processes like enzymatic activity and physiological activity of microorganisms.
• * SECM shows significant potential for investigating bacterial and biofilm activities at a molecular level.

Conclusions:

• * SECM is a versatile tool for high-resolution chemical imaging in biological research.
• * Its applications span from molecular reactions to cellular and microbial activities.
• * SECM is particularly promising for understanding bacterial and biofilm dynamics.