Abstract：
Near-infrared-excited upconversion nanoparticles (UCNPs) have multicolor emissions, a low auto-fluorescence background, a high chemical stability, and a long fluorescence lifetime. The fluorescent probes based on UCNPs have achieved great success in the analysis of different samples. Here, we presented the research results of UCNPs probes utilized in analytical applications including environment, biology, food and medicine in the last five years; we also introduced the design and construction of upconversion optical sensing platforms. Future trends and challenges of the UCNPs used in the analytical field have also been discussed with particular emphasis.
摘要：
近红外激发的上转换纳米粒子（UCNPs）具有多色发射，低自发荧光背景，化学稳定性高,和长的荧光寿命。基于UCNPs的荧光探针在不同样品的分析中取得了巨大的成功。这里,我们介绍了UCNPs探针在分析应用中的研究结果，包括环境，生物学在过去的五年中，我们还介绍了上转换光学传感平台的设计和建设。还特别强调了分析领域中使用的UCNPs的未来趋势和挑战。
