Novel sensitive sensors for Cu2+ and optical switching of photochromic dithienylethene derivatives

Dual Functional Fluorescent Chemosensor for Discriminative Detection of Ni2+ and Al3+ Ions and Its Imaging in Living Cells

“…On the basis of the selective displacement fluorescent behavior of the receptor ( S )-1, OR logic function , was investigated in the existence of Ni 2+ and Al 3+ selected as two inputs by combining two different wavelengths (λ max = 380 nm (or) 400 nm) in the emission mode. The truth table and OR logic gates are illustrated in Figure .…”

Multi‐functional ion‐sensor based on a photochromic diarylethene with a 1H‐imidazo [4,5‐f][1,10] phenanthroline unit

“…The result indicated that the coordinate sites of compound 1 for Ca 2+ and Cu 2+ different. In our previous work, we demonstrated that Cu 2+ was coordinated at the imidazole part (9). Therefore, we deduced that the coordinate of diarylethene 1 with Ca 2+ should be situated at the two nitrogen atoms of the phenanthroline moiety. )…”

“…Cu 2+ is ranked third of the essential heavy metals in the human body below zinc and iron (2), However, Cu 2+ exhibits toxicity at high concentrations and can cause serious neurodegenerative diseases such as Wilson disease (3), Alzheimer's disease (4), and familial amyotrophic lateral sclerosis (5,6). Therefore, the design of a suitable colorimetric sensor with specific response to Cu 2+ has been studied extensively (7)(8)(9)(10)(11)(12). In addition, the calcium ion is one of the most important second messengers in cell signaling pathways.…”

Donor-Acceptor Conjugated System: A Neutral Hydrophobic Fluorescence Probe

“…In general, these probes have restricted motion in the vesicles and fluoresce from LE state, whereas fluoresce from ICT state in micelles. Recently such type of donor-acceptor conjugated systems are also used as a sensor for detection of ions for various other applications [43][44][45].…”