A hemoglobin-based nanozyme with ruthenium-induced nanomotor ability exhibiting photothermal and chemodynamic responses
Microchimica Acta, cilt.193, sa.7, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 193 Sayı: 7
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s00604-026-08176-3
- Dergi Adı: Microchimica Acta
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, EMBASE, MEDLINE, Academic Search Ultimate (EBSCO), Natural Science Collection (ProQuest), Biological Science Database (ProQuest), Engineering Source (EBSCO), Health Research Premium Collection (ProQuest), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: Chemodynamic therapy, Glioblastoma, Hemoglobin, Nanozyme, Ruthenium
- Hacettepe Üniversitesi Adresli: Evet
Özet
Ruthenium functionalized organometallic nanoparticles (Hb@Ru NPs) ca. 10 nm in size, containing crystalline Ru phases were synthesized by a new, single-stage hydrothermal protocol using hemoglobin (Hb) as the skeleton. Compared to currently reported nanozymes, Ru@Hb NPs demonstrated enhanced catalase- and and peroxidase-mimicking activities, produced superoxide (O2•-) and singlet oxygen (1O2) radicals and showed significant glutathione depletion. The maximum substrate consumption rates of 107.5 mM mg-1s-1 and 6.94 µM mg-1s-1, were obtained for catalase-like and peroxidase-like activities, respectively. Hb@Ru NPs exhibited ruthenium induced nanomotor behavior which was utilized to enhance the interaction between tumor cells and nanozyme. Photothermal conversion behavior of Hb@Ru NPs was demonstrated with the temperature elevations of up to 29 °C under NIR laser irradiation. Therapeutic potential of Hb@Ru NPs was evaluated using T98G glioblastoma and HepG2 cells. In-vitro combinatorial photothermal/chemodynamic therapy (PTT&CDT) with T98G cells achieved up to 92.7% cell death, with effective intracellular ROS formation and yielded an apoptotic rate of 63.32%, as determined by flow cytometry. TUNEL staining demonstrated that Hb@Ru NPs significantly induced DNA fragmentation in T98G cells by combined PTT&CDT via producing the most pronounced apoptotic response. PTT&CDT with Hb@Ru NPs also suppressed the migration and proliferation of glioblastoma cells, significantly inhibiting the wound closure in stratch assay.