Rapid Detection of AIB1 in Breast Cancer Cells Based on Aptamer-Functionalized Nanomotors

Chemphyschem. 2019 Dec 3;20(23):3177-3180. doi: 10.1002/cphc.201900844. Epub 2019 Nov 11.

Abstract

Herein, we report ultrasound-propelled graphene-oxide coated gold nanowire motors, functionalized with fluorescein-labeled DNA aptamers (FAM-AIB1-apt), for qualitative detection of overexpressed AIB1 oncoproteins in MCF-7 breast cancer cells. The movement of nanomotors under the ultrasound field facilitated intracellular uptake and resulted in a faster aptamer binding with the target protein and thus faster fluorescence recovery. The propulsion behavior of the aptamer functionalized nanomotors greatly enhanced the fluorescence intensity compared to static conditions. The new aptamer@nanomotor-based strategy offers considerable potential for further development of sensing methodologies towards diagnosis of breast cancer.

Keywords: AIB1; aptamer; fluorescence; graphene; nanomotor.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aptamers, Nucleotide / chemistry
  • Aptamers, Nucleotide / metabolism*
  • Breast Neoplasms / diagnosis
  • Breast Neoplasms / metabolism
  • Breast Neoplasms / pathology
  • Female
  • Fluorescein / chemistry*
  • Gold / chemistry
  • Humans
  • MCF-7 Cells
  • Microscopy, Electron, Scanning
  • Nanotechnology / instrumentation
  • Nanotechnology / methods
  • Nanowires / chemistry
  • Sonication

Substances

  • Aptamers, Nucleotide
  • Gold
  • Fluorescein