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2014 Fiscal Year Final Research Report

Synthesis and evaluation of photoluminescent metal nanoclusters

Research Project

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Project/Area Number 24360026
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionOsaka University

Principal Investigator

INOUYE Yasushi  大阪大学, 生命機能研究科, 教授 (60294047)

Co-Investigator(Renkei-kenkyūsha) ISHITOBI Hidekazu  大阪大学, 生命機能研究科, 助教 (20372633)
Project Period (FY) 2012-04-01 – 2015-03-31
Keywords金属ナノクラスター / 光物性制御 / 蛍光プローブ / 白金原子 / バイオイメージング / ナノフォトニクス
Outline of Final Research Achievements

We have established a synthetic method of platinum nanoclusters that acquire luminescent ability due to discretization of electronic states in a limited number of atoms. Green and yellow emitting platinum nanoclusters were synthesized via reduction of platinum ions after formation of complex in dendrimers or polymer. Then, optical properties, molecular weight, electronic states and size of the nanoclusters were measured and evaluated. Bio-imaging of chemokine receptors expressed in HeLa cells was achieved through surface modification of the green-emitting platinum nanoclusters. Finally, we demonstrated that the yellow-emitting platinum nanoclusters work as metal ion sensors and pH sensors via intensity change of photoluminescence.

Free Research Field

ナノフォトニクス

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Published: 2016-06-03  

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