Optoinjection methods
View Patent ↗Optoinjection method for transiently permeabilizing a target cell by (a) illuminating a population of cells contained in a frame; (b) detecting at least one property of light directed from the frame; (c) locating a target cell by the property of light; and (d) irradiating the target cell with a pulse of radiation.
1. A method of rapidly introducing an exogenous molecule into a live population of cells, comprising the steps of:
providing a live population of cells in the presence of said exogenous molecule;
providing an energy source configured to deliver a beam of radiation;
positioning a container holding said live population of cells within the focus of said beam of radiation; and
contacting one or more cells of said live population of cells with said beam of radiation, wherein said beam of radiation has a diameter of at least 2 μm at the point of contact with said one or more cells;
wherein one or more cells of said live population of cells is transiently permeabilized to allow said exogenous molecule to enter.
2. The method of claim 1 , wherein said diameter of said beam of radiation is at least 10 μm at said point of contact with said live population of cells.
3. The method of claim 2 , wherein said beam of radiation delivers at most 2 μJ/μm 2 .
4. The method of claim 2 , wherein said beam of radiation delivers at most 0.2 μJ/μm 2 .
5. The method of any of claims 1 - 4 , wherein said beam of radiation is delivered through a lens with a numerical aperture of at most 0.5.
6. The method of any of claims 1 - 4 , wherein said lens has a numerical aperture of at most 0.25.
7. The method of claim 5 , wherein said lens has an F-theta flat-field correction.
8. The method of claim 6 , wherein said lens has an F-theta flat-field correction.
9. The method of claim 5 , wherein said lens comprises a working distance of at least 10 mm.
10. The method of claim 6 , wherein said lens comprises a working distance of at least 10 mm.
11. The method of claims 1 or 2 , wherein the viability of the transiently permeabilized cells is more than 50% after the method is performed.
12. The method of claim 1 , wherein said live population of cells comprises a eukaryotic cell.
13. The method of claims 1 or 2 , wherein contacting one or more cells of said live population of cells with said beam of radiation comprises contacting at least 5,000 cells per minute with said beam of radiation.
14. The method of any of claims 1 - 4 , wherein contacting one or more cells of said live population of cells with said beam of radiation further comprises the steps of:
pulsing said energy source; and
steering the pulsed beam of radiation from said energy source to multiple spots within said container holding said live population of cells.
15. The method of claim 14 , wherein said pulsed beam of radiation is wider than any individual cell and is directed to the general area of said live population of cells.
16. A method of rapidly introducing exogenous molecules into a live population of cells, comprising the steps of:
providing a live population of cells in the presence of exogenous molecules;
providing an energy source configured to deliver a beam of radiation;
positioning a container holding said live population of cells within the focus of said beam of radiation; and
contacting one or more cells of said live population of cells with said beam of radiation, wherein said beam of radiation delivers at most 2 μJ/μm 2 ;
wherein one or more cells of said live population of cells is transiently permeabilized to allow said exogenous molecules to enter.
17. The method of claim 16 , wherein said beam of radiation delivers a value selected from the group of at most 0.2 μJ/μm 2 .
18. The method of any of claims 16 - 17 , wherein said beam of radiation is delivered through a lens with a numerical aperture of at most 0.5.
19. The method of any of any of claims 16 - 17 , wherein said lens has a numerical aperture selected from the group of at most 0.25.
20. The method of claim 18 , wherein said lens has an F-theta flat-field correction.
21. The method of claim 16 , wherein contacting said one or more cells of said live population of cells with said beam of radiation comprises:
pulsing said energy source; and
steering the pulsed beam of radiation from said energy source to multiple spots within said container holding said live population of cells.
22. The method of claim 21 , wherein said pulsed beam of radiation is wider than any individual cell and is directed to the general area of said live population of cells.
23. The method of claim 16 or 17 , wherein the viability of the transiently permeabilized cells is more than 80%, after the method is performed.
24. The method of claim 18 , wherein the lens comprises a working distance of at least 7 mm.
25. The method of claim 16 or 17 , wherein contacting one or more cells of said live population of cells with said beam of radiation comprises contacting at least 5,000 cells per minute with said beam of radiation.
26. The method of claim 16 , wherein said exogenous molecules comprises a nucleic acid, a polypeptide, a carbohydrate, a lipid or a small molecule.
27. A method of rapidly introducing exogenous molecules into a live population of cells, comprising the steps of:
providing a live population of cells in the presence of exogenous molecules;
providing an energy source configured to deliver a beam of radiation;
positioning a container holding said live population of cells within the focus of said beam of radiation; and
contacting one or more cells of said live population of cells with said beam of radiation, wherein said beam of radiation is delivered through a lens with a numerical aperture of at most 0.5;
wherein one or more cells of said live population of cells is transiently permeabilized to allow said exogenous molecules to enter.
28. The method of claim 27 , wherein said lens has a numerical aperture selected from the group of at most 0.25.
29. The method of claim 27 or 28 , wherein contacting said live population of cells with said beam of radiation comprises:
pulsing said energy source; and
steering the pulsed beam of radiation from said energy source to multiple spots within said live population of cells.
30. The method of claim 29 , wherein said pulsed beam of radiation is wider than any individual cell and is directed to the general area of said live population of cells.
31. The method of claim 27 or 28 , wherein contacting one or more cells of said live population of cells with said beam of radiation comprises contacting at least 10,000 cells per minute with said beam of radiation.
32. The method of claim 27 or 28 , wherein said lens has an F-theta flat-field correction.
33. The method of claim 27 or 28 , wherein said lens comprises a working distance of at least 10 mm.
34. The method of claim 27 or 28 , wherein the viability of the transiently permeabilized cells is more than 50% after the method is performed.
35. A method of rapidly introducing exogenous molecule into a live cells, comprising:
providing a live cell in the presence of exogenous molecule;
providing an energy source configured to deliver a beam of radiation; and
contacting said live cell with said beam of radiation, wherein said live cell is transiently permeabilized to allow said exogenous molecule to enter; and
wherein said beam of radiation has a diameter of at least 10 μm at the point of contact with said live cell.
36. The method of claim 35 , wherein said beam of radiation has a diameter of at least 15 μm at the point of contact with said live cell.
37. The method of claim 36 , wherein said diameter of said beam of radiation is at least 20 μm at the point of contact with said live cell.
38. The method of claim 35 , wherein said beam of radiation delivers at most 2 μJ/μm 2 .
39. The method of claim 38 , wherein said beam of radiation delivers at most 0.2 μJ/μm 2 .
40. The method of claim 35 , wherein said beam of radiation is delivered through a lens with a numerical aperture of at most 0.5.
41. The method of claim 40 , wherein said lens has a numerical aperture of at most 0.25.
42. The method of claim 35 , wherein said beam of radiation is wider than the cell.
43. The method of claim 35 , wherein said beam of radiation delivers at most 2 μJ/μm and said beam of radiation is delivered through a lens with a numerical aperture of at most 0.5.
44. The method of claim 35 , wherein said beam of radiation has a diameter of at least 25 μm at the point of contact with said live cell.
45. The method of any one of claim 37 or 44 , wherein said beam of radiation delivers between 0.01 μJ/μm 2 and 0.1 μJ/μm 2 .
46. The method of any one of claim 37 or 44 , wherein said beam of radiation delivers at most 0.05 μJ/μm 2 .
47. The method of any one of claim 37 or 44 , wherein said beam of radiation delivers at most 0.1 μJ/μm 2 .
48. The method of any one of claim 37 or 44 , wherein said lens has a numerical aperture of at most 0.25.
49. The method of claim 45 , wherein said lens has a numerical aperture of at most 0.25.
50. The method of claim 46 , wherein said lens has a numerical aperture of at most 0.25.
51. The method of claim 47 , wherein said lens has a numerical aperture of at most 0.25.
52. The method of claim 45 , wherein contacting one or more cells of said live population of cells with said beam of radiation comprises contacting at least 5,000 cells per minute with said beam of radiation.
53. The method of claim 45 , wherein contacting one or more cells of said live population of cells with said beam of radiation comprises contacting at least 50,000 cells per minute with said beam of radiation.
54. The method of claim 1 , wherein said diameter of said beam of radiation is at least 20 μm at said point of contact with said live population of cells.
55. The method of claim 19 , wherein said lens has an F-theta flat-field correction.
56. The method of claim 17 , wherein contacting said one or more cells of said live population of cells with said beam of radiation comprises:
pulsing said energy source; and
steering the pulsed beam of radiation from said energy source to multiple spots within said container holding said live population of cells.
57. The method of claim 18 , wherein contacting said one or more cells of said live population of cells with said beam of radiation comprises:
pulsing said energy source; and
steering the pulsed beam of radiation from said energy source to multiple spots within said container holding said live population of cells.
58. The method of claim 19 , wherein contacting said one or more cells of said live population of cells with said beam of radiation comprises:
pulsing said energy source; and
steering the pulsed beam of radiation from said energy source to multiple spots within said container holding said live population of cells.
59. The method of claim 20 , wherein contacting said one or more cells of said live population of cells with said beam of radiation comprises:
pulsing said energy source; and
steering the pulsed beam of radiation from said energy source to multiple spots within said container holding said live population of cells.
60. The method of claim 19 , wherein the lens comprises a working distance of at least 7 mm.