多路复用
材料科学
光子上转换
编码(内存)
光电子学
可扩展性
发光
光学
计算机科学
物理
电信
数据库
人工智能
作者
Lei Zhou,Yong Fan,Rui Wang,Xiaomin Li,Lingling Fan,Fan Zhang
标识
DOI:10.1002/anie.201808209
摘要
Abstract Optical multiplexing plays an important role in fields ranging from advanced biological assays to security. However, conventional codes based on fluorescent color and intensity are limited to spectral overlap and background interference. Herein, we present a new multiplexing concept by manipulating the luminescence emission color and decay lifetimes of upconversion nanoparticles (τ λ ‐UCNPs) separately for the first time through designing the core/multi‐shell structure and controlled energy relay method. This new color/lifetime binary strategy exhibits exponentially scalable encoding capacity (>10 5 ), three orders of magnitudes higher than that of conventional color/intensity way. The strategy enables the multiplexed detection of human papilloma virus (HPV) subtypes in patient samples and robust anti‐counterfeiting. This work opens new opportunities for optical multiplexing with luminescent materials.
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