Colorimetric hydrogel based nanosensor for detection of therapeutic levels of ionizing radiation
An apparatus includes a hydrogel including a metallic compound, a surfactant, an acid, agarose and water. The hydrogel is substantially colorless. A radiated hydrogel having a color is formed when the hydrogel receives a low dose of ionizing radiation.
1. A composition of matter comprising a hydrogel including a metallic salt, a cationic surfactant, ascorbic acid, agarose, and water.
2. The composition of claim 1 , wherein the metallic salt comprises a gold salt.
3. The composition of claim 1 , wherein the metallic salt comprises a salt of auric chloride (HAuCl 4 ).
4. The composition of claim 1 , wherein the cationic surfactant comprises cetyl trimethammoniom bromide (C 16 TAB).
5. The composition of claim 1 , wherein the ascorbic acid comprises L-ascorbic acid.
6. An apparatus comprising:
a substantially colorless hydrogel to receive a low dose of radiation and form a radiated hydrogel having a color; and
a detector optically coupled to the radiated hydrogel, wherein the radiated hydrogel comprises a plasmonic nanoparticle.
7. An apparatus comprising:
a substantially colorless hydrogel to receive a low dose of radiation and form a radiated hydrogel having a color; and
a detector optically coupled to the radiated hydrogel, wherein the substantially colorless hydrogel comprises a metallic salt, a cationic surfactant, ascorbic acid, agarose, and water.
8. The apparatus of claim 7 , wherein the metallic salt comprises a gold salt.
9. The apparatus of claim 7 , wherein the metallic salt comprises a salt of auric chloride (HAuCl 4 ).
10. The apparatus of claim 7 , wherein the cationic surfactant comprises cetyl trimethammoniom bromide (C 16 TAB).
11. The apparatus of claim 7 , wherein the ascorbic acid comprises L-ascorbic acid.