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Nasurullah Mahar ; Amir Al-Ahmed ; Abdulaziz A. Al-Saadi Appl. Surf. Sci.,2023,607,155034. DOI: 10.1016/j.apsusc.2022.155034
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Abstract: The development of rapid and efficient spectroanalytical protocols to detect bioactive drugs in aqueous samples is linked with the evolution of new generations of nanostructured materials. The 2D vanadium carbide (V2CTx) family of MXenes has been proved to be a promising material owing to its excellent plasmonic effects, short-range charge transfer (CT), and covers a wide variety of applications, especially in the fields of sensing and optics. For several years, research is focused on the stability and inter-layers spacing of a few-layered V2CTx in colloidal states. In this work, the synthesis and characterization of vanadium carbide sheets using a soft condition approach were reported. The delamination with the triethylamine (TEA) intercalant resulted in deceased interlayer spacing of 8.13?? and enhanced the shelf life by up to six weeks. The synthesized highly stable MXene was treated with self-assembled silver nanoparticles (AgNPs) to fabricate a hybrid material as a potential surface-enhanced Raman scattering (SERS) substrate for the detection of ultra-trace quantities of anti-cancer drug gemcitabine (GMC). The developed approach showed an unprecedented limit of detection of 10[-12] M with a wide dynamic range of 10[-4]-10-[12] M. The MXene-based SERS sensor has achieved a Raman signal amplification corresponding to an enhancement factor of 109, with high sensitivity and reproducibility.
Keywords: Vanadium carbide ; SERS ; Gemcitabine ; Hybrid materials ; Intercalation
Purchased from AmBeed: 122111-03-9
CAS No. : | 122111-03-9 | MDL No. : | MFCD01735988 |
Formula : | C9H12ClF2N3O4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | OKKDEIYWILRZIA-OSZBKLCCSA-N |
M.W : | 299.66 | Pubchem ID : | 60749 |
Synonyms : |
LY 188011 hydrochloride;Gemcitabine (hydrochloride);Gemcitabine HCl
|
Chemical Name : | 4-Amino-1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one hydrochloride |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
95% | With acetic acid; sodium nitrite; In water; at 20℃; for 48h; | formula 11(5 g, 16.7 mmol, 1.0 eq.) Was dissolved in a 2N aqueous acetic acid solution (350 ml) Sodium nitrite (16.7 g, 14.5 eq.) Was added slowly and left at room temperature for 48 hours. 2N The mixture was adjusted to pH 6-7 with aqueous sodium hydroxide solution and then concentrated under reduced pressure. Decompression concentration After the addition of methanol / ethyl acetate (1: 5, 360 ml), the insoluble salts were removed. This process The salt was removed repeatedly several times to concentrate under reduced pressure to obtain 4.22 g of a light brown transparent oil of formula (7) in 95% yield. |