Multifunctional nano material based on aggregation-induced emission and MXenes, preparation method and application
A technology of aggregation-induced luminescence and nanomaterials, which is applied in the direction of luminescent materials, nanotechnology for materials and surface science, chemical instruments and methods, etc., can solve the problems of weak stability and no fluorescence emission, and achieve long-term stability, Efficient tumor accumulation effect
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[0041] Such as figure 1 As shown, in order to solve the above technical problems, the present invention provides a method for preparing multifunctional nanomaterials based on aggregation-induced luminescence and MXenes, wherein the method includes the following steps:
[0042] S10, dispersing TBFT, rare earth up-conversion luminescent nanomaterials and distearoylphosphatidylethanolamine-polyethylene glycol 2000-amino cross-linked product in an organic solvent to obtain a mixed solution;
[0043] S20, adding the mixed solution to a phosphate buffered saline solution containing 1-ethyl 3-[3-dimethylaminopropyl] carbodiimide hydrochloride and titanium carbide nanosheets with carboxyl functions, Multifunctional nanomaterials based on aggregation-induced luminescence and MXenes were obtained.
[0044] In this example, the DSPE-PEG-NH2 is an amphiphilic polymer that self-assembles in water to form a nanosphere with a hydrophobic interior and a hydrophilic exterior. Both UCNPS and A...
Embodiment 1
[0049] Preparation of TiC Nanosheets
[0050] Ti 3 AlC 2 It is obtained by mixing Ti, Al and C powders at a molar ratio of 2:1:1 and ball milling for 10 hours, and pressed into a round cake under a pressure of 10MPa. The disc was heated to 1500 °C for 2 h in a tube furnace under flowing argon. Using a mortar and pestle, the resulting Ti 3 AlC 2 smash. Then about 10 g of the powder was soaked in 80 mL of 40% HF aqueous solution for 3 days at room temperature. After being collected by centrifugation, they were washed with deionized water and ethanol, and stirred in 50 mL of TPAOH at room temperature for 3 d. Then, put Ti 3 C 2 The nanosheet raw material was collected by centrifugation, washed three times with ethanol and water to remove residual TPAOH. After 30 minutes of sonication, small-sized Ti 3 C 2 Nanosheets.
Embodiment 2
[0052] Ti 3 C 2 Carboxyl functions of nanosheets:
[0053] In diazonium salt: Ti 3 C 2 In a typical synthesis with a reaction ratio of 5:1, 7 mmol of sodium hydroxide and 4-aminobenzoic acid were added to 80 mL of water to prepare the diazonium salt of benzenecarboxylate. Subsequently, maintaining the temperature at 0-5°C, 7.6 mmol of sodium nitrite was slowly added. Finally, 6 mL of 20% HCl solution was quickly added, stirred for 45 minutes, and the color of the solution turned light yellow. Then 25 mL of diazonium salt solution was added to 1 mL of Ti 3 C 2 In the aqueous solution (5 mg / mL) of nanosheets, stir at 1000 rpm for 4 h. Sonicate for 15 minutes, centrifuge at 9000 rpm for 30 minutes, and wash with deionized water, acetone, and ethanol in sequence.
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