A long lifetime ratiometrically luminescent tetracycline nanoprobe based on Ir(III) complex-doped and Eu3+-functionalized silicon nanoparticles

DNA-Modified Electrochemiluminescent Tris(4,4’-Dicarboxylicacid-2,2’-Bipyridyl)Ruthenium(II) Dichloride and Assistant DNA-Modified Carbon Nitride Quantum Dots for Hg2+ Detection

“…Well-developed methods for quantifying Hg 2+ contaminants, including atomic fluorescence spectrometry (FL AFS), atomic absorption spectrometry, high-performance liquid chromatography mass spectrometry (HPLC-MS), inductively coupled plasma MS, and so forth, feature high sensitivity and accuracy, but usually involve skilled personnel, costly instrumentation, and complex sample pretreatment. − Alternatively, comparable sensitivity, simple operation, and fast response endow electrochemistry, , FL, − colorimetry, − photoelectrochemistry, and surface-enhanced Raman scattering methods with ideal sensing potential for Hg 2+ determination. Therein, electrochemiluminescence (ECL), as a specific electrochemistry process where excited species are produced at the electrode surface by electrochemical oxidation or reduction and emit a luminescence via high-energy electron transfer, exhibits a low background signal and excellent sensitivity because of its integration of the advantages of spectroscopy and electrochemistry. − …”

Dual-Channel Probe of Carbon Dots Cooperating with Lanthanide Complex Employed for Simultaneously Distinguishing and Sequentially Detecting Tetracycline and Oxytetracycline

“…The molecularly imprinted polymers (MIPs) prepared by this molecular imprinting technique have specific recognition and selective adsorption properties, which are simple and low-cost choices for improving fluorescence detection selectivity [ 31 , 32 , 33 ]. On the other hand, the construction of dual-channel ratio fluorescence probe, may effectively avoid the problems of low sensitivity and susceptibility to external environment interference from the on-off fluorescence switch sensor, and realize rapid visual detection through the change of fluorescence colors [ 34 , 35 ].…”

A time-resolved ratiometric luminescent anthrax biomarker nanosensor based on an Ir(iii) complex-doped coordination polymer network

“…FT-IR spectra were used to confirm the successful synthesis of the Ir(III)@GMP-Eu 3+ nanocomposites: As shown in Fig: 1C(a), the typical peaks at 3050 cm À1 , 1440 cm À1 and 704 cm À1 belong, respectively, to the C-H stretching vibration, the CQC (N) stretching vibration and the C-H bending vibration in benzene or pyridine rings in Ir(III)-2F. 42 Fig. 1C(b) shows that the characteristic peaks of -PO 4 3À at 2830 cm À1 , 2350 cm À1 , 1760 cm À1 and 1084 cm À1 are attributed to the O-H stretching vibration, the P-O stretching vibration, the PQO stretching vibration and the P-O bending vibration, respectively.…”