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Keywords:

  • biosensors;
  • click chemistry;
  • DNA;
  • fluorescent probes;
  • photosensitizers
Thumbnail image of graphical abstract

All there in black and white: DNA labeled with spectral sensitizers applied to commercially available photopaper allows the detection of oligonucleotides with extreme sensitivity. The detection of the DNA with the help of black and white photography is shown in the picture (ODN=oligodeoxyribonucleotide).