A ratiometric chemosensor for Al3+ based on naphthalene-quinoline conjugate with the resultant complex as secondary sensor for F−: Interpretation of molecular logic gates

A naphthalene-based azo armed molecular framework for selective sensing of Al3+

“…Furthermore, there are reports on a similar framework without azo armed sensors that can detect metal ions like Cu 2+ and Al 3+ . 37,38 But in the case of Al 3+ , the above sensors responded in a much lower wavelength, i.e. , in the blue region, but in our work, the sensor senses the Al 3+ in a longer wavelength, i.e.…”

“…Furthermore, there are reports on a similar framework without azo armed sensors that can detect metal ions like Cu 2+ and Al 3+ . 37,38 But in the case of Al 3+ , the above sensors responded in a much lower wavelength, i.e., in the blue region, but in our work, the sensor senses the Al 3+ in a longer wavelength, i.e., in the greenish-yellow region. The detection of Al 3+ at a longer wavelength i.e., with a lower energy is also beneficial for in vitro cell imaging studies.…”

A simple hydrazone as a multianalyte (Cu2+, Al3+, Zn2+) sensor at different pH values and the resultant Al3+ complex as a sensor for F−

“…The advantage of the reversibility of the probe based on coordination reaction ( vide infra ) was taken into consideration. 30 The rupture of the 1 + Al 3+ species to regenerate 1, and the subsequent change in the optical properties of 1 + Al 3+ system in buffered CH 3 CN/HEPES solution (10 mM, 1/1, v/v) at pH 6.0, were studied by introducing a variety of anions (AcO − , F − , Cl − , Br − , I − , CN − , SCN − , N 3 − , ClO 4 − , HSO 4 − , HSO 3 − , H 2 PO 4 − , HPO 4 2− , S 2− and PO 4 3− ). The significant quenching of fluorescence in the 1 + Al 3+ system due to regeneration of 1 was observed only in the presence of F − ions ( Fig.…”

“…Noticeably, the 1 + Al 3+ system is able to detect F À ions by uorescence quenching, as the resultant metal-probe complex used as secondary sensor is one of the most promising design strategies for the detection of uoride. [28][29][30] In addition, the application of the uorescent probe in living cell image is demonstrated.…”

Discriminative ‘Turn-on’ Detection of Al3+ and Ga3+ Ions as Well as Aspartic Acid by Two Fluorescent Chemosensors

“…Earth’s crust consists of various metals, out of which aluminum is the third most abundant [ 1 , 2 ]. Aluminum metal and its compounds enter into the environment through various anthropogenic activities such as building materials, transportation, electronics, industrial effluents, wastewater treatment plants, utensils, and food additives [ 3 , 4 , 5 , 6 ]. As a result, aluminum gets absorbed and accumulated in the human body due to its excessive exposure [ 6 , 7 , 8 ].…”