Micromanipulator Alignment
Micromanipulator Alignment - Related Videos
05:45
Micromanipulation of Chromosomes in Insect Spermatocytes
0 Views •
Cited by 9 •
2018
In this protocol, we describe the selection and preparation of appropriate cells for micromanipulation and the use of a piezoelectric micromanipulator to reposition chromosomes within those cells.
02:10
Single Cell Sampling Using Micromanipulation: A Technique to Isolate Single Cells from Cancer Cell Suspension
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2023
This video describes the technique for isolating single cells from a pool of target cells to carry out downstream analysis. In this method, a micromanipulator fitted to a microscope is used for high-precision isolation of a single target cell.
11:36
Assembly, Loading, and Alignment of an Analytical Ultracentrifuge Sample Cell
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Cited by 21 •
2009
The analytical ultracentrifuge (AUC) sample cell holds sample and reference buffer and during experiments and is exposed to high vacuum and rotor speeds up to 60,000 rpm. This video will demonstrate the rigorous attention to detail necessary for assembly, loading and alignment of this very important component of an AUC experiment.
06:02
Microiontophoresis and Micromanipulation for Intravital Fluorescence Imaging of the Microcirculation
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Cited by 3 •
2011
Microiontophoresis entails movement of ions from a micropipette in response to a difference in electrical potential between the inside and outside of the micropipette. Biologically active molecules are thereby delivered in proportion to electrical current. We illustrate acetylcholine microiontophoresis in conjunction with micromanipulation to study endothelium-dependent vasodilation in the microcirculation.
07:12
Microengineering 3D Collagen Hydrogels with Long-Range Fiber Alignment
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Cited by 3 •
2022
This protocol demonstrates the use of a microfluidic channel with changing geometry along the fluid flow direction to generate extensional strain (stretching) to align fibers in a 3D collagen hydrogel (<250 µm in thickness). The resulting alignment extends across several millimeters and is influenced by the extensional strain rate.
FAQs
Verification focuses on whether each control axis produces a predictable displacement of the working tip within the microscope’s optical field. The operator also checks for unwanted drift, which would indicate that tip motion does not remain stable relative to the sample coordinate system. This assessment establishes whether later microscale operations can be controlled consistently.
Height and angle determine how the working tip approaches and moves through the sample region observed under the microscope. Adjusting both helps keep tip motion coordinated with the optical field rather than introducing unintended displacement. In bioengineering procedures, this supports more controlled contact with cells, embryos, tissues, or microassembled components and can reduce sample damage.
A tool that is not centered can make the observed tip position differ from the position expected from the instrument controls. This mismatch complicates coordination between the microscope view and the sample’s coordinate system, increasing the risk of positional inaccuracy and measurement error. Correct centering therefore supports repeatable movements during microscale manipulation.
A practical sequence begins by centering the tool within the microscope’s optical field, followed by adjustment of the working-tip height and angle. The operator then moves the controls along each axis to confirm predictable tip displacement and checks for unwanted drift. Completing these checks before handling the sample helps establish positional control and repeatability.
Careful alignment supports operations that require controlled positioning at small scales, including cell injection, embryo manipulation, microassembly, and tissue handling. In these settings, accurate tip motion can reduce sample damage and improve repeatability. The same alignment principles contribute to reliable work in cell engineering, reproductive technologies, microfluidics, and biomedical device development.
Alignment links instrument movement with both the microscope’s optical field and the sample’s coordinate system, giving researchers a consistent spatial reference during an experiment. That relationship improves positional accuracy and repeatability while reducing measurement error. As a result, alignment is relevant not only to manipulation itself but also to dependable outcomes in microscale engineering and biomedical experiments.