■ 日時： 2026年10月31日（土）13:00～14:00
■ 開催場所： 南総合研究棟2号館 4階 セミナー室421

■ 演題： Precision Nanoclusters: New Directions and Applications
■ 講師： Edakkattuparambil Sidharth Shibu 先生（University of Calicut, India）
■ 講演概要：原子精度で制御された金属ナノクラスターを用いた超分子材料の構築、光応答性自己組織化、発光特性の向上、電極触媒への応用など、最新の研究成果についてご講演いただきます。

Atomically precise metal nanoclusters (NCs) provide an ideal platform for constructing functional supramolecular
materials with tunable optical, catalytic, and electronic properties. This talk presents recent advances in the
light-induced self-assembly of Au₂₅ NCs functionalized with azobenzene and coumarin chromophores, yielding
distinct disc-like and toroidal superstructures through photoisomerization- and photocycloaddition-driven pathways,
respectively. The influence of chromophore architecture on assembly behavior, guest encapsulation, and controlled
release will be discussed. The presentation will further highlight assembly-induced photoluminescence enhancement
in gold-copper bimetallic NCs and their integration into light-emitting devices. Subsequently, the use of redox-active
NCs for switchable electrocatalysis, enabling dynamic control over catalytic selectivity through molecular and
supramolecular design, will be showcased. Finally, the role of metal complexation in promoting efficient energy
conversion processes will be discussed. Collectively, these studies demonstrate how atomically precise NCs can
serve as versatile building blocks for designing next-generation photonic, energy, and catalytic materials.

• 根岸研究室