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Mitochondrial dynamics and quantification of mitochondria-derived vesicles in cardiomyoblasts by structured illumination microscopy (CAT#: STEM-MIT-0410-LJX)

Introduction

Mitochondria are essential energy-providing organelles of particular importance in energy-demanding tissue such as the heart. The production of mitochondria-derived vesicles (MDVs) is a cellular mechanism by which cells ensure a healthy pool of mitochondria. These vesicles are small and fast-moving objects not easily captured by imaging. In this service, we use the structured illumination microscopy to capture high-resolution images of MDVs.




Principle

The structured illumination microscopy (SIM) applies a pattern lighting field (different from the traditional wide-field lighting) to the samples to improve the spatial resolution of the optical microscope and has advantages for the observation of living cells. In this method, the spatial frequency of the illumination pattern is mixed with the spatial frequency of the sample feature, converting the high frequency feature into a lower frequency detectable by the microscope. The periodic lighting pattern (Moire fringes, Moire fringes) is generated by the interference of multiple light sources in the axial (Z), lateral (X-Y) or both directions, and the high-resolution image is reconstructed based on the acquisition of multiple illumination images in different phases and directions. Since the illumination mode itself is also limited by optical diffraction, SIM can only double the spatial resolution by combining two information sources with limited diffraction, achieving resolutions of 100 nm and 300 nm in the X-Y and Z-axis directions, respectively.

Applications

Applied to the research of cell physiology, cell dynamics and other subcellular level

Procedure

1. Sampling
2. Preparation of slices
3. Staining (Select according to the specific experimental situation)
4. Observation

Materials

• Sample Type:
Mitochondria-derived vesicles in cardiomyoblasts

Notes

Operate in strict accordance with the operating procedures, and shall not arbitrarily change the operating procedures
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