在C1s的光谱中,COF-318和COF-318/TNF均有5个峰,分别对应-C≡N、 C-C/C=C、C-N、C-O和C-F。在N1s和O1s的光谱中,与纯COF-318相比,在引入TNF后观察到小的结合能偏移,这意味着化学环境发生改变,可归因于COF和TiO2之间的键相互作用。COF-318/TNF的O1s光谱中,530.7 eV处的结合能由于TiO2纳米纤维中O2...
We demonstrated that shorter DNAs are adsorbed more rapidly and bind more tightly to the surface of 2D COF. The adsorption is favored by a higher pH. The different buffer types also can affect the adsorption. In Tris-HCl solution, the adsorption reached highest efficiency. By adding the ...
在C1s的光谱中,COF-318和COF-318/TNF均有5个峰,分别对应-C≡N、 C-C/C=C、C-N、C-O和C-F。在N1s和O1s的光谱中,与纯COF-318相比,在引入TNF后观察到小的结合能偏移,这意味着化学环境发生改变,可归因于COF和TiO2之间的键相互作用。COF-318/TNF的O1s光谱中,530.7 eV处的结合能由于TiO2纳米纤维中O2...
Therefore, a method for detecting MiR-205 based on 2D COF nanosheets and fluorescent oligonucleotide probe was constructed and investigated in this study. The 2D COF nanosheet quenches the fluorescence of the fluorescent single-stranded DNA (ss-DNA) probes through fluorescence resonance energy transfer...
2D COFfluorescent DNA probehybridization efficiencyoptical sensorsIn the current study, the internal law of the combination between COFs and DNA in solution was explored. It was found that shorter DNAs adsorbed more rapidly and bound more tightly to the surface of 2D COFs. Many different factors ...
图12. Cu-NH2-MIL-125、TpPa-2-COF和Cu-NH2-MIL-125/TpPa-2-COF(4:6)的PL光谱(c)和时间分辨PL光谱(d) 13. 核磁共振(NMR): 与机械掺杂不同,所制备的NH2-UiO-66@Br-COFs杂化材料是由Schiff基反应及连接NH2-UiO-66核和Br-COFs壳的亚胺(C=N)共价键产生的,FT-IR光谱可证实该结论,13C CP-MAS NMR...
图12. Cu-NH2-MIL-125、TpPa-2-COF和Cu-NH2-MIL-125/TpPa-2-COF(4:6)的PL光谱(c)和时间分辨PL光谱(d) 13. 核磁共振(NMR): 与机械掺杂不同,所制备的NH2-UiO-66@Br-COFs杂化材料是由Schiff基反应及连接NH2-UiO-66核和Br-COFs壳的亚胺(C=N)共价键产生的,FT-IR光谱可证实该结论,13C CP-MAS NMR...