Di-oxime based selective fluorescent probe for arsenate and arsenite ions in a purely aqueous medium with living cell imaging applications and H-bonding induced microstructure formation

Abstract

A 2-hydroxy-5-methyl-benzene-1,3-dicarboxaldehyde di-oxime based turn-on blue emission fluorescent probe was found to recognize both AsO2(-) and H2AsO4(-) in a purely aqueous medium in intra and extra-cellular conditions. Self-organization of the ligand in the absence and presence of AsO2(-) and H2AsO4(-) was investigated by DLS, optical microscopy, optical fluorescence microscopy and FE-SEM methods.

Yellow Fluorescent Carbon Dots for Selective Recognition of As3+ and Fe3+ Ions

“…The values of K SV indicate a moderately strong interaction between the functional groups and the targeted ions . The LOD values of the As 3+ and Fe 3+ ions in this study are significant and comparable with previous reports as well as with other fluorophores. ,,− A comparative study is shown in Table S1 (SI), although some of the reports experienced a comparatively lower detection level due to the attachment of specific functional molecules on the probe surface. The functionalization involves multistep processes and may quench the fluorescence intensity of fluorophores.…”

Nitric Oxide Sensing through 1,2,3,4-Oxatriazole Formation from Acylhydrazide: A Kinetic Study

“…On further addition of NO, the FI remains almost unaltered. The linear part was analyzed using eq where a and b are FIs of the free probe and in the presence of excess NO (≥40 μM), c = K f . Assuming 1 ≫ c ∗ x and n = 1, eq turns to y = a + b ∗ c ∗ x .…”

Colorimetric and fluorometric probes for the optical detection of environmental Hg(ii) and As(iii) ions

“…Sensor 85 consists of a detection limit of 0.5 ppb, which is much lower than the WHO limit. An oxime based fluorogenic probe 86 [148] was applied for the detection of arsenite with turn- A colorimetric probe 87 was designed as a benzothiazole Schiff base for highly sensitive and selective detection of As 3+ ion. [149] Sensor 87 showed light yellow color in DMSO-water (1:1) medium.…”