microinjection

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microinjection

(mī′krō-ĭn-jĕk′shən)
n.
Injection of minute amounts of a substance into a microscopic structure, such as a single cell.

mi′cro·in·ject′ (-jĕkt′) v.

microinjection

[mī′krō·injek′shən]
the injection of tiny amounts of a substance into a cell by using micromanipulation instruments.

microinjection

A method of introducing DNA into a cell by direct injection into the nucleus, using a microcapillary pipette.

microinjection

a method for introducing new DNA into a CELL by injecting it directly into the NUCLEUS or CYTOPLASM using a thin glass needle. The technique has been used to inject cloned genes into the nucleus of an egg cell in vitro, to generate a TRANSGENIC ORGANISM.

microinjection

a method in which very finely drawn glass pipettes held in a finely adjustable mechanical device are used to introduce new materials (antibodies, organelles, DNA) into cells as they are visualized under a microscope.
References in periodicals archive ?
Effects of the Microinjection of Saline into the Cuneiform Nucleus on Blood Pressure and Heart Rate
The microinjection of saline (100-150 nL, n=10) into the CnF did not affect [DELTA]MAP (before: 72.
ET-1 Microinjections Induce Progressive Astrocyte Activation in the Ischemic Striatum.
However, other studies using microinjection have found that both DA receptor agonists and antagonists can reduce voluntary alcohol intake in animal models.
A dummy cannula (33-gauge stainless steel wire) was inserted into the guide cannula to reduce the incidence of occlusion and was removed prior to the microinjection.
The microinjections were carried out at the end of the behavioral experiments.
It was observed that while microinjection of cholinergic agonist, carbachol, into the medio-dorsal pontine tegmentum including LC-alpha and peri-LC-alpha in the intact cat induced high amount of REM sleep with short latency of less than 5 min, similar microinjection in the cat where brainstem was transected between the pons and the medulla, failed to induce REM sleep with short latency (150).
In brief, microinjections were made from a multibarrel micropipette (20-50 [micro]m diameter) and the coordinates for the RVLM (2.
Mesotherapy is said to stimulate the middle layer of the skin with microinjections introducing small quantities of homeopathic "medication", vitamins and amino acids to "increase circulation, break down fat deposits and firm the skin".
3] progenies did indicate that it is possible to transform plants through DNA microinjection.
The Japanese rice fish, medaka (Oryzias latipes), was used as the experimental model in which individual eggs were exposed via microinjection to various known concentrations of PbTx-3 dissolved in an oil vehicle.