(≥99.9%, #650501), trypsin–EDTA solution (#T3924), bovine
serum albumin (#A2153), Rose Bengal (#330000), and Atto633 (#18620)
were purchased from Merck. Fetal calf serum (FCS, #2-01F10-I), penicillin–streptomycin
solution (Pen-Strep, #4-01F00-H), RPMI-1640 with stable glutamine
(#1–41F50-I), and Dulbecco’s phosphate-buffered saline
(PBS) without Ca2+/Mg2+ (#3-05F29-I) were purchased
from BioConcept. Dulbecco’s Modified Eagle Medium (DMEM) high
glucose (1×) with GlutaMAX (#61965-026) was purchased from Gibco.
The ROS detection assay kit was purchased from Abcam (#ab287839).
Calcein was purchased from ThermoFisher (#C481). All other chemicals
were purchased from Merck at the highest available grade and used
as received, unless stated otherwise. Hydroxyl-functionalized PDMS25-b-PMOXA10-OH (Mn = 2850 g mol–1) was synthesized and
purified as previously described.36 (link) Terminally
azide-functionalized PDMS-b-PMOXA was synthesized
following the method described by Meyer et al.37 (link)1H NMR (