光热加热和实时现场发光温度计与氧化铁核心-外纳米物体
Farah Abdel Sater1, Gautier Félix1, Saad Sene1
1ICGM, Univ. Montpellier, CNRS, ENSCM, route de Mende CNRS Occitanie Est, 1919, Montpellier, 34293, France.
Small (Weinheim an der Bergstrasse, Germany)
|October 22, 2025
概括
新的多功能纳米粒子为纳米粒子辅助加热提供精确的纳米级热反. 这些氧化铁/纳米物体既可以充当加热器,也可以充当温度计,从而可以实时可靠地监测温度.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 在纳米粒子辅助加热中实现精确的纳米级热反是具有挑战性的.
- 精确的表面温度读数需要对纳米物体形态和加热器/探头布局进行细致的控制.
研究的目的:
- 在纳米粒子辅助光热加热过程中提供实时纳米尺度温度测量.
- 引入新的多功能纳米物体,用于同时加热和温度传感.
主要方法:
- 单个氧化铁纳米颗粒的合成包装在星状的外中,装有发光协调化合物[Tb/Eu]9[acac]16[μ3-OH]8[μ4-O]和[μ4-OH]].
- 利用纳米物体作为光触发的纳米加热器和比度发光温度计.
- 在808nm光热加热过程中,通过Tb3+/Eu3+发光强度比率实时实地监测温度.
主要成果:
- 这些纳米物体作为高效的纳米加热器和比度发光温度计,在水中在20-65°C之间工作.
- 证明了出色的循环性和最大相对热灵敏度为0.75±0.02%°C−1在65°C.
- 实现了1°C的热不确定性,具有可重现和可靠的热反.
结论:
- 开发的多功能纳米物体为光热加热提供了可靠的纳米级热反.
- 实时温度监测功能突显了它们对先进温度响应应用的潜力.
- 这项工作提高了纳米级热管理的精度和效率.
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