The insertion of a substance into a cell through a microelectrode. Typical applications include the injection of drugs, histochemical markers (such as horseradish peroxidase or lucifer yellow) and RNA or DNA in molecular biological studies. To extrude the substances through the very fine electrode tips, either hydrostatic pressure (pressure injection) or electric currents (ionophoresis) is employed.

Dictionary of molecular biology. 2004.

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  • Microinjection — refers to the process of using a glass micropipette to insert substances at a microscopic or borderline macroscopic level into a single living cell. It is a simple mechanical process in which a needle roughly 0.5 to 5 micrometers in diameter… …   Wikipedia

  • microinjection — microinjection. См. микроинъекция. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • microinjection —  Microinjection  Микроинъекция   Введение вещества в микроскопические объекты (клетки, ядра и т.п.) через микрокапиллярную пипетку. Стандартная область применения включает в себя введение лекарственных препаратов, гистохимических маркеров (таких… …   Толковый англо-русский словарь по нанотехнологии. - М.

  • microinjection — [mī΄krō in jek′shən] n. an injection made by means of a very thin needle and with the aid of a microscope, as, for example, to insert genetic material into a cell microinject vt …   English World dictionary

  • microinjection — noun Date: 1921 injection under the microscope; specifically injection by means of a micropipette into a tissue or a single cell • microinject transitive verb …   New Collegiate Dictionary

  • microinjection — /muy kroh in jek sheuhn/, n. Biol. injection performed under a microscope, esp. of a solution or gene transplant into a cell or cell part. [1920 25; MICRO + INJECTION] * * * …   Universalium

  • microinjection — noun injection (especially of biological material) using a micropipette …   Wiktionary

  • microinjection — mi·cro·in·jec·tion .mī krō in jek shən n injection under the microscope specif injection esp. by a micropipette into a tissue or a single cell mi·cro·in·ject in jekt vt …   Medical dictionary

  • microinjection — mi·cro·injection …   English syllables

  • microinjection —  n.f. Méd. Technique de fécondation assistée …   Le dictionnaire des mots absents des autres dictionnaires

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