1. A bottle and cap assembly for containing a liquid nutrient having a pH equal to or greater than about 2.5, said bottle having an interior surface having a polymeric layer thereon, said polymeric layer having a metal-ion sequestering agent for removing a designated metal ion from said liquid nutrient for inhibiting growth of microbes in said liquid nutrient, said metal-ion sequestering agent comprises derivatized nanoparticles comprising inorganic nanoparticles having an attached metal-ion sequestrant, wherein said inorganic nanoparticles have an average particle size of less than 200 nm and the derivatized nanoparticles have a stability constant greater than 1010 with iron (III), said metal-ion sequestering agent is immobilized in said polymeric layer and comprises 0.1 to 50.0% by weight of the polymeric layer, and the polymeric layer contacts the liquid contained therein and is permeable to water.
2. A bottle and cap assembly according to claim 1 wherein said metal-ion sequestering agent is immobilized on the surface of said bottle and has a stability constant greater than 1010 with iron (III).
3. A bottle and cap assembly according to claim 1 wherein said sequestering agent is immobilized on the surface of said bottle and has a high-affinity for biologically important metal ions.
4. A bottle and cap assembly according to claim 1 wherein said sequestering agent is immobilized on the surface of said bottle and has a high-selectivity for biologically important metal ions.
5. A bottle and cap assembly according to claim 1 wherein said sequestering agent has a high-selectively for certain metal ions but a low-affinity for at least one other ions.
6. A bottle and cap assembly according to claim 1 wherein said certain metal ions comprises Mn, Zn, Cu and Fe and said other at least one ion comprises calcium.
7. A bottle and cap assembly according to claim 1 wherein said metal-ion sequestering agent is immobilized on the surface of said bottle and has a stability constant greater than 1020 with iron (III).
8. A bottle and cap assembly according to claim 1 wherein said metal-ion sequestering agent is immobilized on the surface of said bottle and has a stability constant greater than 1030 with iron (III).
9. A bottle and cap assembly according to claim 1 wherein said inorganic nanoparticles have an average particle size of less than 100 nm.
10. A bottle and cap assembly according to claim 1 wherein said metal-ion sequestrant comprises an alpha amino carboxylate, a hydroxamate, or a catechol functional group.
11. A bottle and cap assembly according to claim 1 wherein said metal-ion sequestrant is attached to to inorganic nanoparticle by reacting the inorganic nanoparticle with a silicon alkoxide intermediate of the sequestrant having the general formula:
Si(OR)4\u2212xR\u2032x;
wherein x is an integer from from 1 to 3
R is an alkyl group; and
R\u2032 is an organo group containing an alpha amino carboxylate, a hydroxamate, or a catechol.
12. A bottle and cap assembly according to claim 1 wherein said bottle is made of a plastic material.
13. A bottle and cap assembly according to claim 1 wherein said liquid nutrient comprises a beverage.
14. A bottle and cap assembly according to claim 1 wherein said bottle is made of a material that includes said sequestering agent.
15. A bottle and cap assembly for containing a liquid nutrient having a pH equal to or freater than about 2.5 said cap having an interior surface having a polymeric layer thereon, said polymeric layer having a metal-ion sequestering agent for removing a designated metal ion from said liquid nutrient for inhibiting growth of microbes in said liquid nutrient, said metal-ion sequestering agent comprises derivatized nanoparticles comprising inorganic nanoparticles having an attached metal-ion sequestrant, wherein said inorganic nanoparticles have an average particle size of less than 200 nm and the derivatized nanoparticles have a stability constant greater than 1010 with iron (III), said metal-ion sequestering agent is immobilized in said polymeric layer and comprises 0.1 to 50.0% by weight of the polymeric layer, and the polymeric layer is capable of contacting the liquid contained therein and is permeable to water.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A lighting structure for a recessed lighting fixture, the lighting structure comprising:
a lighting fixture housing having an opening, the opening including a horizontal slot and a vertical slot, the vertical slot intersecting the horizontal slot; and
a retention structure attached to the housing, the retention structure to retain the lighting structure recessed into a ceiling, wherein the retention structure includes:
a wall segment positioned within the housing;
a tension spring segment positioned outside of the housing, the tension spring segment extending out from a first end portion of the wall segment; and
an end segment having a wide segment and a narrow segment, the narrow segment coupled to a second end portion of the wall segment, wherein the wide segment of the end segment is positioned outside of the housing by extending the wide segment of the end segment through the horizontal slot of the opening of the housing, and wherein the narrow segment of the end segment extends through the vertical slot of the opening of the housing.
2. The lighting structure of claim 1, wherein the wall segment is positioned against an inner wall of the housing.
3. The lighting structure of claim 1, wherein the wide segment of the substantially T-shaped segment is wider than the vertical slot of the opening of the housing.
4. The lighting structure of claim 1, wherein the tension spring segment curves down from the first end portion of the wall segment.
5. The lighting structure of claim 1, wherein a flange of the tension spring segment rests on the back side of the ceiling below the horizontal slot of the opening of the housing.
6. The lighting structure of claim 1, wherein the housing includes a second opening having a second horizontal slot and a second vertical slot and wherein the second vertical slot intersects the second horizontal slot.
7. The lighting structure of claim 1, wherein a torsion spring receiver extends out from the wall segment toward a center of the housing.
8. The lighting structure of claim 1, wherein the narrow segment of the end segment includes a first vertical segment, a horizontal segment, and a second vertical segment, wherein the first vertical segment extends from the second end portion of the wall segment, wherein the horizontal segment extends between the first vertical segment and the second vertical segment, and wherein the second vertical segment is coupled to the wide segment of the end segment.
9. The lighting structure of claim 1, wherein the horizontal slot of the opening of the housing is above the vertical slot of the opening of the housing when the lighting structure is recessed in a ceiling.
10. A lighting structure for a recessed lighting fixture, the lighting structure comprising:
a lighting fixture housing having an opening, the opening including a horizontal slot and a vertical slot, the vertical slot intersecting the horizontal slot; and
a retention structure to retain the lighting structure recessed into a ceiling, wherein the retention structure includes:
a wall segment to be positioned inside the housing;
a tension spring segment extending out from a first end portion of the wall segment, the tension spring segment to be positioned outside of the housing, wherein the tension spring segment is sized to pass through the horizontal slot of the opening of the housing from within the housing; and
an end segment having a wide segment and a narrow segment, the narrow segment coupled to a second end portion of the wall segment, wherein the wide segment of the end segment is to be positioned outside of the housing by passing the wide segment of the end segment through the horizontal slot of the opening of the housing from within the housing, and wherein the narrow segment of the end segment is sized to extend through the vertical slot of the opening of the housing.
11. The lighting structure of claim 10, wherein the wall segment is positioned against an inner wall of the housing.
12. The lighting structure of claim 10, wherein the wide segment of the substantially T-shaped segment is wider than the vertical slot of the opening of the housing.
13. The lighting structure of claim 10, wherein the tension spring segment curves down from the first end portion of the wall segment.
14. A lighting structure for a recessed lighting fixture, the lighting structure comprising:
a lighting fixture housing; and
a junction box attached to a lighting fixture housing, wherein a first portion of the junction box proximal to the housing is vertically narrower than a second portion of the junction box distal from the lighting fixture housing, wherein a proximal end of the junction box is attached to the lighting fixture housing, and wherein the junction box is tapered between a distal end of the junction box and the proximal end of the junction box.
15. The lighting structure of claim 14, wherein the junction box includes a first side wall and a second side wall, wherein a bottom edge of the first side wall is slanted angularly upwards as the first side wall extends towards the lighting fixture housing, and wherein a bottom edge of the second side wall is slanted angularly upwards as the second side wall extends towards the lighting fixture housing.
16. The lighting structure of claim 14, wherein the junction box includes a bottom wall and a back wall, wherein the bottom wall and the back wall extend between the first side wall and the second side wall, and wherein the back wall is at the distal end of the junction box.
17. The lighting structure of claim 16, wherein a cavity of the junction box is accessible via the back wall.
18. The lighting structure of claim 16, wherein a first portion of the bottom wall that is proximal to the lighting fixture housing is elevated relative to a second portion of the bottom wall that is distal from the lighting fixture housing.
19. The lighting structure of claim 14, wherein the proximal end of the junction box is attached to a housing top of the lighting fixture housing.
20. The lighting structure of claim 19, wherein the lighting fixture housing is cylindrical.