Biological particulate matter analogue
The present invention provides a biological particle analogue, or biological analogue, that simulates a chosen biological organism or compound. The biological analogue includes a first portion that is not, in and of itself, recognized by the biological detection system, and a second portion, which provides the properties necessary for recognition by the detection system, carried by the first portion. The biological analogue is constructed in such a way as to include some important characteristics of the chosen biological organism or compound, while excluding other undesirable characteristics of the chosen biological organism or compound. The present invention is useful in testing a variety of biological detection systems.
1. A biological analogue for use in testing or calibrating a detection system for detecting Bacillus globigii comprising:
a) a first portion, said first portion being a bead; and
b) a DNA portion carried by said first portion;
wherein said biological analogue is aerosolized, and further wherein said biological analogue acts as a surrogate for said Bacillus globigii , and said detection system recognizes said biological analogue as Bacillus globigii.
2. The biological analogue of claim 1 wherein said DNA portion is total genomic Bacillus globigii DNA.
3. The biological analogue of claim 1 where in said first portion is selected from the group consisting latex beads, polystyrene beads, silica beads, polystyrene beads, styrene/divinylbenzne copolymer beads, polymethylmethcarylate beads, polyvinyltoluence beads, styrene/butadiene copolymer beads, styrene/vinyltoluene copolymer beads, vinyl carboxylic acid/styrene copolymer beads, and styrene/maleic anhydride copolymer beads, amino-modified microsphere beads, and carboxylate-modified microsphere beads, and paramagnetic beads.
4. The biological analogue of claim 1 wherein said DNA portion is carried by said first portion because of a linkage selected from the group consisting of covalent linkages, ionic linkages, and streptavidin/biotin linkages.
5. A biological analogue for use in testing or calibrating a detection system for detecting a biological material comprising:
a) a first portion which is a polystyrene bead with an aerodynamic diameter approximately the same as said biological material; and
b) a second portion carried by said first portion, wherein the second portion is genomic Bacillus globigii DNA;
wherein said biological analogue tests or calibrates said detection system by acting as a surrogate for said biological material, and further wherein said detection system recognizes said biological analogue as said biological material.
6. The biological analogue of claim 5 herein said second portion is carried by said first portion because of a streptavidin/biotin linkage.
7. The biological analogue of claim 5 wherein an average of 1–3 genome equivalents of Bacillus globigii genomic DNA are attached per first portion.
8. A biological analogue for use in testing or calibrating a detection system for detecting a biological material comprising:
a) a first portion which is a polystyrene bead with approximately the same aerodynamic diameter as Bacillus anthracis ; and
b) a second portion carried by said first portion, wherein the second portion is genomic Bacillus globigii DNA;
wherein said biological analogue tests or calibrates said detection system by acting as a surrogate for said biological material, and further wherein said detection system recognizes said biological analogue as said biological material.
9. The biological analogue of claim 8 wherein an average of 1–3 genome equivalents of Bacillus globigii genomic DNA are attached per first portion.
10. The biological analogue of claim 8 wherein said second portion is carried by said first portion because of a streptavidin/biotin linkage.
11. A biological analogue for use in testing or calibrating a detection system for detecting a biological material wherein said biological material is Bacillus globigii comprising:
a) a first portion, wherein said first portion is a bead; and
b) a second portion carried by said first portion, wherein said second portion is selected from the group consisting of DNA, RNA, PNA, and a protein;
wherein said biological analogue is aerosolized, and further wherein said biological analogue tests or calibrates said detection system by acting as a surrogate for said biological material, and said detection system recognizes said biological analogue as said biological material.
12. The biological analogue of claim 11 wherein said second portion is DNA.
13. The biological analogue of claim 11 wherein said second portion is RNA.
14. The biological analogue of claim 11 wherein said second portion is PNA.
15. The biological analogue of claim 11 wherein said second portion is protein.
16. A biological analogue for use in testing or calibrating a detection system for detecting a biological material, wherein said biological material is Bacillus anthracis comprising:
a) a first portion, wherein said first portion is a bead; and
b) a second portion carried by said first portion, wherein said second portion is selected from the group consisting of DNA, RNA, PNA, and a protein;
wherein said biological analogue is aerosolized, and further wherein said biological analogue tests or calibrates said detection system by acting as a surrogate for said biological material, and said detection system recognizes said biological analogue as said biological material.
17. The biological analogue of claim 16 wherein said second portion is DNA.
18. The biological analogue of claim 16 wherein said second portion is RNA.
19. The biological analogue of claim 16 wherein said second portion is PNA.
20. The biological analogue of claim 16 wherein said second portion is protein.
21. A biological analogue for use in testing or calibrating a detection system for detecting a biological material, wherein said biological material is Yersinia pestis comprising:
a) a first portion, wherein said first portion is a bead; and
b) a second portion carried by said first portion, wherein said second portion is selected from the group consisting of DNA, RNA, PNA, and a protein;
wherein said biological analogue is aerosolized, and further wherein said biological analogue tests or calibrates said detection system by acting as a surrogate for said biological material, and said detection system recognizes said biological analogue as said biological material.
22. The biological analogue of claim 21 wherein said second portion is DNA.
23. The biological analogue of claim 21 wherein said second portion is RNA.
24. The biological analogue of claim 21 wherein said second portion is PNA.
25. The biological analogue of claim 21 wherein said second portion is protein.
26. A biological analogue for use in testing or calibrating a detection system for detecting a biological material, wherein said biological material is Orthopoxvirus comprising:
a) a first portion, wherein said first portion is a bead; and
b) a second portion carried by said first portion, wherein said second portion is selected from the group consisting of DNA, RNA, PNA, and a protein;
wherein said biological analogue is aerosolized, and further wherein said biological analogue tests or calibrates said detection system by acting as a surrogate for said biological material, and said detection system recognizes said biological analogue as said biological material.
27. The biological analogue of claim 26 wherein said second portion is DNA.
28. The biological analogue of claim 26 wherein said second portion is DNA.
29. The biological analogue of claim 26 wherein said second portion is DNA.
30. The biological analogue of claim 26 wherein said second portion is DNA.
31. A biological analogue for use in testing or calibrating a detection system for detecting a biological material, wherein said biological material is Salmonella comprising:
a) a first portion, wherein said first portion is a bead; and
b) a second portion carried by said first portion, wherein said second portion is selected from the group consisting of DNA, RNA, PNA, and a protein;
wherein said biological analogue is aerosolized, and further wherein said biological analogue tests or calibrates said detection system by acting as a surrogate for said biological material, and said detection system recognizes said biological analogue as said biological material.
32. The biological analogue of claim 31 wherein said second portion is DNA.
33. The biological analogue of claim 31 wherein said second portion is RNA.
34. The biological analogue of claim 31 wherein said second portion is PNA.
35. The biological analogue of claim 31 wherein said second portion is protein.