Sensing devices and chemosensors and compositions relating thereto
A composition includes a 1,8-naphthalimide fluorophore, a spacer bound to the 1,8-naphthalimide fluorophore and a thiazole-based receptor having an unsaturated heterocycle ring bound to the spacer. The composition may be employed as a chemosensor configured to capture an ion in a fluid medium. The chemosensor may further be incorporated into a sensing device configured to detect the ion and calculate a concentration of the ion in the fluid medium.
1. A compound comprising:
a 1,8-naphthalimide fluorophore;
a spacer bound to the 1,8-naphthalimide fluorophore, the spacer being —CH 2 —NH—; and
a thiazole-based receptor bound to the spacer.
2. The compound of claim 1 , wherein the thiazole-based receptor includes at least two electronegative atoms.
3. The compound of claim 1 , wherein the compound includes electronegative atoms facilitating a capture of Pb 2+ ion from a fluid.
4. The compound of claim 1 , further comprising a sulfur-based anchor bound to the 1,8-naphthalimide fluorophore.
5. The compound of claim 1 , wherein the thiazole-based receptor has a moiety sidechain that is a piperidinyl group or a sulfur-containing group.
6. A compound comprising:
a 1,8-naphthalimide fluorophore;
a spacer bound to the 1,8-naphthalimide fluorophore, the spacer being —CH(R)—NH—, wherein R is CH 3 ; and
a thiazole-based receptor bound to the spacer, the thiazole-based receptor having a moiety sidechain that is dimethylamine.
7. A chemosensor configured to capture an ion in a fluid medium, the chemosensor comprising:
a 1,8-naphthalimide fluorophore;
a spacer bound to the 1,8-naphthalimide fluorophore, the spacer being —CH 2 —NH—; and
a thiazole-based receptor bound to the spacer,
the chemosensor including at least two electronegative atoms facilitating capture of the ion from fluid medium.
8. The chemosensor of claim 7 , wherein the ion is Pb 2+ ion.
9. The chemosensor of claim 7 , further comprising a sulfur-based anchor bound to the 1,8-naphthalimide fluorophore.
10. The chemosensor of claim 7 , wherein the thiazole-based receptor has a moiety sidechain that is a piperidinyl group or a sulfur-containing group.
11. A sensing device comprising:
a chemosensor configured to capture an ion in a fluid medium and to generate a signal in response to capturing the ion, the chemosensor including:
a 1,8-naphthalimide fluorophore;
a spacer bound to the 1,8-naphthalimide fluorophore, the spacer being —CH 2 —NH—; and
a thiazole-based receptor bound to the spacer, the spacer and the thiazole-based receptor configured to capture the ion to generate the signal.
12. The sensing device of claim 11 , wherein the thiazole-based receptor includes at least two electronegative atoms.
13. The sensing device of claim 11 , further comprising a sulfur-based anchor bound to the 1,8-naphthalimide fluorophore and configured to link the chemosensor to cellulose microparticles.
14. The sensing device of claim 13 , wherein the cellulose microparticles are embedded in a hydrogel.
15. The sensing device of claim 11 , wherein the ion is Pb 2+ ion.
16. The sensing device of claim 11 , wherein the thiazole-based receptor has a moiety sidechain that is a piperidinyl group or a sulfur-containing group.