?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=N&rft.au=Kim%2C+N&rft.aulast=Kim&rft.atitle=Tumor-Targeting+Cholesterol-Decorated+DNA+Nanoflowers+for+Intracellular+Ratiometric+Aptasensing&rft.issn=1521-4095&rft.date=18+March+2021&rft.title=ADVANCED+MATERIALS&rft.volume=33&rft.issue=11&rft.genre=article