(redirected from Microinjections)
Also found in: Medical, Encyclopedia.


Injection of minute amounts of a substance into a microscopic structure, such as a single cell.

mi′cro·in·ject′ (-jĕkt′) v.


vb (tr)
(Microbiology) to inject (a substance, esp a single living cell) using a microscope
References in periodicals archive ?
(6) demonstrated that intracerebroventricular (icv) microinjections of this H4 receptor agonist reversed emotional memory deficits induced by scopolamine in mice subjected to an inhibitory avoidance task (IAT), which is a model related to fear expression.
Suresh et al., "A randomised, open-label, comparative study of tranexamic acid microinjections and tranexamic acid with microneedling in patients with melasma," Journal of Cutaneous and Aesthetic Surgery, vol.
Changes in mean arterial pressure ([DELTA]MAP) and changes in heart rate ([DELTA]HR) after the microinjections of the reagent and drugs at different intervals (time courses) within each group and between each group were calculated and compared with those in the control group (repeated measures ANOVA).
The method of experimental stroke used microinjections of the vasoconstrictor peptide endothelin-1 (ET-1) (Sigma, Saint Louis, MO, USA), according to our previous publications [7, 16].
Microinjections were performed using glass capillary needles (Clark Electromedical Instruments, Edenbridge, UK) prepared in an automatic puller (Narishige, Tokyo, Japan).
The star's mitts were blasted with microinjections of amino acids, vitamins and hyaluronic acid to stimulate the production of skin-plumping collagen.
I will take advantage of the ultrasound-guided in utero microinjections of lentivirus into the amniotic cavity, which has been recently developed in our lab and allows to test the function of thousands of genes simultaneously.
Bilateral microinjections were made with the use of glass micropipettes with tip diameter of 10-20 [micro]m connected to a pressure injector; the volume injected was measured by determining the displacement of the meniscus in the pipette with respect to a horizontal grid viewed through an operating microscope.
Microinjections were made in conscious rats while they were gently handled by the experimenter.
It involves gradually administering controlled amounts of sterile, medical-grade carbon dioxide gas via 0.3mm needle microinjections just beneath the skinAEs surface.