Biofunctionalized nanoneedles for the direct and site-selective delivery of probes into living cells

Kyungsuk Yum, Min Feng Yu, Ning Wang, Yang Kevin Xiang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Background: Accessing the interior of live cells with minimal intrusiveness for visualizing, probing, and interrogating biological processes has been the ultimate goal of much of the biological experimental development. Scope of review: The recent development and use of the biofunctionalized nanoneedles for local and spatially controlled intracellular delivery brings in exciting new opportunities in accessing the interior of living cells. Here we review the technical aspect of this relatively new intracellular delivery method and the related demonstrations and studies and provide our perspectives on the potential wide applications of this new nanotechnology-based tool in the biological field, especially on its use for high-resolution studies of biological processes in living cells. Major conclusions: Different from the traditional micropipette-based needles for intracellular injection, a nanoneedle deploys a sub-100-nm-diameter solid nanowire as a needle to penetrate a cell membrane and to transfer and deliver the biological cargo conjugated onto its surface to the target regions inside a cell. Although the traditional micropipette-based needles can be more efficient in delivery biological cargoes, a nanoneedle-based delivery system offers an efficient introduction of biomolecules into living cells with high spatiotemporal resolution but minimal intrusion and damage. It offers a potential solution to quantitatively address biological processes at the nanoscale. General significance: The nanoneedle-based cell delivery system provides new possibilities for efficient, specific, and precise introduction of biomolecules into living cells for high-resolution studies of biological processes, and it has potential application in addressing broad biological questions. This article is part of a Special Issue entitled Nanotechnologies - Emerging Applications in Biomedicine.

Original languageEnglish (US)
Pages (from-to)330-338
Number of pages9
JournalBiochimica et Biophysica Acta - General Subjects
Volume1810
Issue number3
DOIs
StatePublished - Mar 2011
Externally publishedYes

Fingerprint

Nanoneedles
Biological Phenomena
Cells
Needles
Biomolecules
Nanotechnology
Cell membranes
Nanowires
Demonstrations
Cell Membrane
Injections

Keywords

  • Cargo delivery into living cell
  • Compartment
  • Cytoplasm
  • Imaging
  • Nanoneedle
  • Nucleus
  • Single-molecule study
  • Subcellular

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Cite this

Biofunctionalized nanoneedles for the direct and site-selective delivery of probes into living cells. / Yum, Kyungsuk; Yu, Min Feng; Wang, Ning; Xiang, Yang Kevin.

In: Biochimica et Biophysica Acta - General Subjects, Vol. 1810, No. 3, 03.2011, p. 330-338.

Research output: Contribution to journalArticle

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