[16a-W2_402-1~10] 12.6 Nanobiotechnology

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[16a-W2_402-4] Synthesis and characterization of InP/ZnS quantum dots for life-science applications

〇Tomo Sakanoue¹, Kazushi Kusumoto¹, Kazuhiro Nakatsui¹, Yuna Sano², Ziyu Zhao², Noriko Nakamura², Seiichi Ohta² (1.Nippon Chem. Ind., 2.Univ. Tokyo)

Keywords:

Quamtum dot,Bio imaging,lifescience

As quantum dots for bio and life science applications, we developed Cd-free and Se-free non-toxic InP/ZnS quantum dots, achieving high performance across an emission range of 470–710 nm. Water dispersibility was improved through thiolate modification under alkaline conditions, resulting in enhanced stability and long-term retention. Furthermore, cell imaging using QD-labeled antibodies demonstrated superior photostability compared to conventional dyes, confirming their potential as environmentally friendly fluorescent probes for biological applications.