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Keywords:

  • drug delivery;
  • fluorescent cell probes;
  • high-throughput;
  • intracellular delivery;
  • nanoneedle arrays
Thumbnail image of graphical abstract

A dense diamond nanoneedle array is capable of rapidly and conveniently delivering fluorescent probe and drug molecules to a large number of cells. This simple approach paves the way for potential high-throughput delivery of genes, drugs, and fluorescent probes into cells without endocytosis.