NaErF4@NaYF4-folic acid stokes shifts probe and preparation method thereof
A probe, folic acid technology, applied in the field of lung adenocarcinoma detection, can solve the problems that have not been reported in the literature, and achieve the effects of low cost, no radiation, high sensitivity, and high feedback speed
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[0046] 1. Probe Preparation
[0047] 1.1 Preparation of shell precursor
[0048] Preparation of Gd-OA (0.1M) precursor: In a 50mL three-neck round bottom flask, first add 2.5mmolGdCl3, 10mL oleic acid, and 15mL octadecene. Then heated to 140 °C under vacuum and magnetic stirring conditions and kept for 1 hour, and finally a clear and transparent Gd-OA (0.1M) precursor was obtained.
[0049] Preparation of Y-OA (0.1M) precursor: In a 50mL three-neck round bottom flask, first add 2.5mmolYCl3, 10mL oleic acid, and 15mL octadecene. Then heated to 140 °C under vacuum and magnetic stirring conditions and kept for 1 hour, and finally a clear and transparent Y-OA (0.1M) precursor was obtained.
[0050] Preparation of Na-TFA-OA precursor: In a 25mL three-necked round-bottomed flask, add 4mmol sodium trifluoroacetate and 10mL oleic acid in sequence, keep room temperature, dissolve under vacuum and stirring conditions, and finally obtain colorless, transparent and clear Na- TFA-OA pre...
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