Micromanipulator Control
Micromanipulator Control - Related Videos
05:45
Micromanipulation of Chromosomes in Insect Spermatocytes
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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.
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.
12:52
Micromanipulation Techniques Allowing Analysis of Morphogenetic Dynamics and Turnover of Cytoskeletal Regulators
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Cited by 10 •
2018
We describe how micro- and photomanipulation techniques such as FRAP and photoactivation enable the determination of motility parameters and the spatiotemporal dynamics of proteins within migrating cells. Experimental readouts include subcellular dynamics and turnover of motility regulators or of the underlying actin cytoskeleton.
05:17
Micromanipulation of Circulating Tumor Cells for Downstream Molecular Analysis and Metastatic Potential Assessment
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Cited by 10 •
2019
Here, we present an integrated workflow to identify phenotypic and molecular features that characterize circulating tumor cells (CTCs). We combine live immunostaining and robotic micromanipulation of single and clustered CTCs with single cell-based techniques for downstream analysis and assessment of metastasis-seeding ability.
FAQs
Mechanical knobs, motorized drives, and joystick interfaces scale user input into small movements along one or more axes. This lets an operator adjust a pipette or recording electrode in controlled increments rather than making large, disruptive movements. The resulting positioning control supports a measured approach to a target and helps maintain stable placement during delicate cellular experiments.
Microscopic visualization allows the operator to monitor the instrument as it approaches a cell, tissue, or other target. Because the pipette or electrode can be positioned while the specimen remains visible, the researcher can make fine adjustments and limit unnecessary disturbance. This combination of visual guidance and controlled motion is especially important for accessing specific neural structures.
These control formats provide different ways to direct the same underlying positioning task. Mechanical knobs allow direct manual adjustment, motorized drives produce controlled movement through powered axes, and joysticks provide an interface for directing motion. The appropriate choice depends on how the operator needs to approach and hold a target within the laboratory workspace.
Positioning quality depends on the ability to make finely scaled movements, control the relevant axis or axes, and keep the instrument stable once it reaches the target. Microscopic visualization further supports accurate placement by showing the relationship between the instrument and specimen. Together, these factors can improve recording quality and experimental reproducibility.
The operator first views the target through a microscope, then uses the selected interface to move the pipette or recording electrode along the required axis or axes. Fine adjustments bring the instrument toward the cell or tissue while minimizing disturbance. Once the desired position is reached, stable placement supports the subsequent recording, stimulation, or manipulation.
In neuroscience, this control is used for patch-clamp recording, intracellular stimulation, and microinjection, as well as targeted manipulation of neurons or brain tissue. These applications require an instrument to reach a selected cellular or tissue location without excessive movement. Precise positioning therefore helps researchers examine neural signaling and related cellular mechanisms.
Accurate positioning can improve the quality of recordings and make experimental procedures more reproducible. It also gives researchers better access to cellular mechanisms underlying neural signaling by helping them place electrodes or pipettes at intended locations. These benefits are relevant when experiments depend on consistent contact with, stimulation of, or delivery into delicate neural specimens.