Benzo[a]phenoxazinium-Based Red-Emitting Chemosensor for Zinc Ions in Biological Media

Abstract

A benzo[a]phenoxazinium-based chemosensor bearing an N,N-di(2-picolyl)ethylenediamine unit was successfully synthesized. It is a long-wave emission and fully water-soluble fluorescent sensor with good membrane permeability for the selective detection of Zn(2+).

Synthesis, crystal structure, photophysical property and metal ion-binding behavior of a cyclometalated platinum(ii) terpyridylacetylide with efficient π-conjugation degree

“…The binding constants of 3 toward Fe 2+ and Zn 2+ from the absorption titration data were calculated using the linear Benesi-Hildebrand equation. [31][32][33] Moreover, the binding constants of 3 toward Fe 2+ and Zn 2+ were evaluated from their uorescence titration data using the Stern-Volmer expression 34,35 and the linear Benesi-Hildebrand equation, respectively.…”

Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species

“…316 The standard instrumental analysis techniques for heavymetal ions detection often require sample preparation which may change oxidation states of the metal ions, leading to false positives. 321,322 Herein, we have summarized the varieties of zinc sensor with variable functionalities. 318 Furthermore, detection of zinc is also important for environmental safety as it is widely employed in the electroplating industries and persistence as environmental pollutants where its toxicity has been found in both acute and chronic forms.…”

A Simple Perceptive Diphenyl‐Imidazole‐Based Dipodal Schiff‐Base Chemosensor for Zn2+ and PPi ions and Its Live‐Cell Imaging Applications

“…In current years, researchers focused on recognition of metal ions by using fluorescent chemosensor. Because fluorescent chemosensor is very inexpensive method to identify the metal ions when compared to other sophisticated utensils like AAS, ICP‐MS etc., Now a day's transition metal ions play a vital role in the environment and human health. Among the metal ions present in the human body, zinc is found to be second most abundant transition metal ion after iron and it involves in several biological evolution such as, enzyme regulation, neurotransmission and apoptosis etc .…”

“…Among the metal ions present in the human body, zinc is found to be second most abundant transition metal ion after iron and it involves in several biological evolution such as, enzyme regulation, neurotransmission and apoptosis etc . However the presence of a lower amount of zinc ions in human may cause diseases like alzheimer, osteoporosis cerebral ischemia and epilepsy, and also extreme presence of zinc ions in the environment tends to reduce the activity of microbes present in soil. Hence, selective and sensitive sensors for the detection of zinc ion is become very much needed.…”