NAVIGATION
SiO2-COOH modified upconverting nanoparticles (near-infrared light)
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SiO2-COOH modified upconverting nanoparticles (purple-blue light)
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SiO2-COOH modified upconverting nanoparticles (Yellow green light)
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Dense silica coated upconversion nanoparticles (yellow-green light)
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Quantum dot surface modification drug small molecule
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