A novel cerium(iii)–isatin Schiff base complex: spectrofluorometric and DFT studies and application as a kidney biomarker for ultrasensitive detection of human creatinine

Abstract

A novel and promising Schiff base and Ce(iii)-complex were synthesized and fully characterized. A novel creatinine optical biosensor based on Ce(iii)-complex and could be a promising analytical tool and as a promising kidney biomarker.

WITHDRAWN: Zn(II) Metal-organic Framework Nanoparticles: Synthesis, Characterization and Application as Optical Biosensor for Prostate-Specific Antigen

“…[23][24][25][26][27][28][29][30][31][32]. Different excellent physicochemical properties of the MOF-NPs make these nanomaterials are very sensitive and selective tools for bonding to biological and organic molecules and can be simply interacted moreeffective than bulk state materials [33]. In addition, distinctive properties make MOF-NPs have considerable several applications like sensing, biomedical, drug delivery gas separation/storage, catalysis, etc.…”

A novel nano-lanthanum complex: synthesis, characterization and application as a macrofuran chemosensor in pharmaceutical, biological and environmental samples

“…These make the nanomaterials very selective and sensitive tools for the detection of organic molecules and can be easily interacted with a biological target more efficiently than bulk materials. 20 Lanthanum complexes and MOFs vital examples for metal complexes, incubated in a considerable analytical application. For example, it is used for the detection of ascorbic acid in pharmaceutical preparations, 21 as chemosensors for nitrofurans, 22 iron( iii ), 23 and for anthelmintic drugs.…”

Through-Space Interactions in Clusteroluminescence

“…In the meantime, the brightness of the CL was enhanced when the concentration of CLgens increased, and the film was brighter than the solution (Figure b). Figure c demonstrates the continuous red shift of λ em in P­(MA- co -DMAA) accompanied by the increased λ ex , showing an excitation-dependent luminescence effect which is different from the traditional chromophores with TBC . According to the molecular photophysical theories, the radiative transition follows Kasha’s rule that the luminescence is only from the lowest excited state.…”

“…Figure 3c demonstrates the continuous red shift of λ em in P(MA-co-DMAA) accompanied by the increased λ ex , showing an excitation-dependent luminescence effect which is different from the traditional chromophores with TBC. 49 According to the molecular photophysical theories, the radiative transition follows Kasha's rule that the luminescence is only from the lowest excited state. The emission wavelength is permanent for one molecule with a fixed structure, so changing the λ ex will only affect the PL intensity but not λ em .…”