Catalytic Au/PEDOT/Pt micromotors for cancer biomarker detection and potential breast cancer treatment

Yurdabak Karaca G., KURALAY F., BİNGÖL ÖZAKPINAR Ö., Uygun E., Koc U., ULUSOY S., ...More

APPLIED NANOSCIENCE, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume:
  • Publication Date: 2021
  • Doi Number: 10.1007/s13204-021-01735-5
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex
  • Hacettepe University Affiliated: Yes


The synthesis and biomedical applications of nano/micromotors have attracted great attention. In this work, preparation and characterization of catalytic gold/poly(3,4-ethylenedioxythiophene)/platinum (Au/PEDOT/Pt) micromotors were reported to present their contribution for cancer biomarker miRNA-21 detection. Potential use of these motors for possible cancer treatment was also illustrated after their biocompability had shown. At first, anti-miRNA probe immobilized Au/PEDOT/Pt micromotors (probe DNA/Au/PEDOT/Pt/MMs) were used for the sensitive and selective recognition of synthetic miRNA-21 target sequence to present the proof-of-concept. Then intracellular studies were carried out using four types of cancer cells (human breast cancer cell line, MCF-7, human colorectal adenocarcinoma cell line, HT-29, human lung carcinoma cell line, A-549 and human osteosarcoma cell line, SJSA-1). These studies illustrated the high selectivity of probe DNA/Au/PEDOT/Pt micromotors for MCF-7 and SJSA-1 cells. Later, antiproliferative and cytotoxic effects of the micromotors and their potential use for breast cancer treatment were investigated.