1. A removable nonvolatile memory system comprising:
storing read data onto a memory portion of a memory device; and
accessing the memory portion including:
reading the read data from the memory portion, and
writing predetermined data onto the memory portion after reading the memory portion.
2. The system as claimed in claim 1 wherein writing the predetermined data onto the memory portion includes writing data different from the read data.
3. The system as claimed in claim 1 wherein reading the read data from the memory portion includes reading a row of the memory device.
4. The system as claimed in claim 1 wherein reading the read data from the memory portion includes reading a page of the memory device.
5. The system as claimed in claim 1 further comprising forming an electronic system with the memory device.
6. A removable nonvolatile memory system comprising:
storing read data onto a memory portion of a memory device;
reading the read data from the memory portion; and
writing predetermined data different from the read data onto the memory portion immediately after reading the memory portion.
7. The system as claimed in claim 6 wherein reading the read data from the memory portion includes reading the read data once from the memory portion.
8. The system as claimed in claim 6 further comprising:
reading a further memory portion of the memory device; and
wherein writing the predetermined data different from the read data onto the memory portion immediately after reading the memory portion includes:
writing the predetermined data to both the memory portion and the further memory portion.
9. The system as claimed in claim 6 further comprising verifying the read data from the memory portion before writing the predetermined data.
10. The system as claimed in claim 6 wherein writing the predetermined data different from the read data onto the memory portion immediately after reading the memory portion includes selectively not writing the predetermined data onto a further memory portion of the memory device.
11. A removable nonvolatile memory system comprising:
a memory portion of a memory device for storing read data; and
a controller device coupled to the memory device for accessing the memory portion including:
reading the read data from the memory portion, and
writing predetermined data onto the memory portion after reading the memory portion.
12. The system as claimed in claim 11 wherein the controller device includes a control block for writing the predetermined data different from the read data onto the memory portion.
13. The system as claimed in claim 11 wherein the memory portion includes a row of the memory device.
14. The system as claimed in claim 11 wherein the memory portion includes a page of the memory device.
15. The system as claimed in claim 11 further comprising an electronic system with the memory device.
16. The system as claimed in claim 11 wherein the controller device includes a control block for writing the predetermined data different from the read data onto the memory portion immediately after reading the memory portion.
17. The system as claimed in claim 16 wherein the controller device includes the control block for reading the read data once from the memory portion.
18. The system as claimed in claim 16 wherein the controller device includes the control block for reading a further memory portion of the memory device and writing the predetermined data to both the memory portion and the further memory portion.
19. The system as claimed in claim 16 wherein the controller device includes the control block for verifying the read data from the memory portion before writing the predetermined data.
20. The system as claimed in claim 16 wherein the controller device includes the control block for selectively not writing the predetermined data onto a further memory portion of the memory device.
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 method to prepare a solid or non-aqueous liquid formulation with antimicrobial properties which method comprises including in said formulation an antimicrobially effective amount of an anhydrous composition containing SDC and citric acid.
2. A non-aqueous liquid or solid formulation which comprises an antimicrobial amount of an anhydrous composition of SDC and citric acid.
3. The formulation of claim 2 wherein the citric acid in said anhydrous composition is in molar excess of the SDC.
4. The formulation of claim 3 wherein the citric acid is in at least 5 fold molar excess of the SDC.
5. The formulation of claim 2 wherein said anhydrous composition is in the form of microparticles.
6. The formulation of claim 5 wherein the microparticles have average diameters of 2-500 \u03bc.
7. The formulation of claim 2 wherein the percentage by weight of said anhydrous citric acidSDC composition is 0.5-5% by weight.
8. The formulation of claim 2 wherein said non-aqueous composition is a paint, a varnish, construction material, a solid polymer or a paper product.
9. The formulation of claim 2 wherein the construction material is drywall.
10. A method to provide antimicrobial protection to a surface or to a formulation, which method comprises applying to said surface or including in said formulation in antimicrobially effective amount of an anhydrous composition of silver dihydrogen citrate (SDC) and citric acid.
11. The method of claim 10 wherein the citric acid in said anhydrous composition is in molar excess of the SDC.
12. The method of claim 11 wherein the citric acid is in at least 5 fold molar excess of the SDC.
13. The method of claim 10 wherein said anhydrous composition is in the form of microparticles.
14. The method of claim 13 wherein the microparticles have average diameters of 2-500 \u03bc.
15. A method to provide antimicrobial protection to an environment, which method comprises applying to said environment an antimicrobially effective amount of an anhydrous composition of silver dihydrogen citrate (SDC) and citric acid or a solid or non-aqueous liquid formulation thereof.
16. The method of claim 15 wherein the citric acid in said anhydrous composition or formulation is in molar excess of the SDC.
17. The method of claim 16 wherein the citric acid is in at least 5 fold molar excess of the SDC.
18. The method of claim 15 wherein said anhydrous composition is in the form of microparticles.
19. The method of claim 18 wherein the microparticles have average diameters of 2-500 \u03bc.
20. A method to prepare an emulsion or lotion which method comprises providing non-aqueous components of said lotion or emulsion or said lotion or emulsion itself with an antimicrobially effective amount of an anhydrous composition of silver dihydrogen citrate (SDC) and citric acid.
21. The method of claim 20 wherein the citric acid in said anhydrous composition is in molar excess of the SDC.
22. The method of claim 21 wherein the citric acid is in at least 5 fold molar excess of the SDC.
23. The method of claim 20 wherein said anhydrous composition is in the form of microparticles.
24. The method of claim 23 wherein the microparticles have average diameters of 2-500 \u03bc.