1. Near-Infrared Dual-Modal Sensing of Force and Temperature in Total Knee Replacement Using Mechanoluminescent Phosphor of Sr 3 Sn 2 O 7 : Nd, Yb.
- Author
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Li W, Wang S, Jin M, Wang L, Nan J, Wang C, Xiong P, Hu QM, Liu L, Ren J, and Zhang J
- Subjects
- Humans, Strontium chemistry, Ytterbium chemistry, Luminescence, Neodymium chemistry, Luminescent Measurements methods, Infrared Rays, Arthroplasty, Replacement, Knee, Temperature
- Abstract
Knee replacement surgery confronts challenges including patient dissatisfaction and the necessity for secondary procedures. A key requirement lies in dual-modal measurement of force and temperature of artificial joints during postoperative monitoring. Here, a novel non-toxic near-infrared (NIR) phosphor Sr
3 Sn2 O7 :Nd, Yb, is designed to realize the dual-modal measurement. The strategy is to entail phonon-assisted upconversion luminescence (UCL) and trap-controlled mechanoluminescence (ML) in a single phosphor well within the NIR biological transmission window. The phosphor is embedded in medical bone cement forming a smart joint in total knee replacements illustrated as a proof-of-concept. The sensing device can be charged in vitro by a commercial X-ray source with a safe dose rate for ML, and excited by a low power 980 nm laser for UCL. It attains impressive force and temperature sensing capabilities, exhibiting a force resolution of 0.5% per 10 N, force detection threshold of 15 N, and a relative temperature sensitive of up to 1.3% K-1 at 309 K. The stability against humidity and thermal shock together with the robustness of the device are attested. This work introduces a novel methodological paradigm, paving the way for innovative research to enhance the functionality of artificial tissues and joints in living organisms., (© 2024 Wiley‐VCH GmbH.)- Published
- 2024
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