A Self-Made Optical Tweezers Integrated Upconversion Luminescence Confocal Scanning Instrument Enables Stable and Noninvasive Long-Term <i>In Situ</i> Imaging a Single Suspension Cell Under Exceptionally Efficient Luminescent Resonance Energy Transfer SensingChengyu Li, Yaling Chen, Junxian Liu et al.|Analytical Chemistry|2022Cited by 3