maintained according to the standard quality control practices and
procedures. UV–vis measurements were taken on a Shimadzu BioSpec-nano
microvolume UV–vis spectrophotometer (Shimadzu Scientific Instruments;
Kyoto, Japan). Radioactivity measurements were taken using a CRC-15R
dose calibrator (Capintec, Inc.; Ramsey, NJ, USA) and an automatic
Wizard2gamma counter (PerkinElmer; Waltham, MA, USA). Surface
plasmon resonance was performed using a Nicoya OpenSPR-XT instrument
(Nicoya Lifesciences; Kitchener, ON, Canada).