Efficient processing systems and methods for biological samples
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-001/30
G01N-001/31
G01N-033/543
G01N-033/58
B01F-011/00
B01F-013/00
G01N-035/00
출원번호
US-0937891
(2013-07-09)
등록번호
US-9442049
(2016-09-13)
발명자
/ 주소
Barker, Stephen
Avantsa, Saradha
출원인 / 주소
Biocare Medical, LLC
대리인 / 주소
Santangelo Law Offices, P.C.
인용정보
피인용 횟수 :
4인용 특허 :
128
초록▼
Systems and methods of sample and staining processing including compression and dynamic movement of liquids in a fluidically moving substantially contained liquid bridge perhaps between a hydrophobic wand and a hydrophilic sample support element. Embodiments may include low volume reagent and perhap
Systems and methods of sample and staining processing including compression and dynamic movement of liquids in a fluidically moving substantially contained liquid bridge perhaps between a hydrophobic wand and a hydrophilic sample support element. Embodiments may include low volume reagent and perhaps even low volume buffer wash in sample processing. In addition, antibodies can be conjugated with nanoparticles and can be used in sample processing. Exposing a sample with or without movement to AC, DC, or even a permanent magnet field may improve staining. Staining with nanoparticle reagents could be quantified using a microscope with a magnetometer below the slide viewing area. The detection of nanoparticles attached to the chemistry may facilitate the quantification of cancerous cells stained in the tissue.
대표청구항▼
1. A method for efficient sample processing of a non-liquid biological sample with a dynamically moving aqueous-based processing liquid, comprising the steps of: providing a stationary sample support with a hydrophilic surface;providing the non-liquid biological sample fixed on the stationary sample
1. A method for efficient sample processing of a non-liquid biological sample with a dynamically moving aqueous-based processing liquid, comprising the steps of: providing a stationary sample support with a hydrophilic surface;providing the non-liquid biological sample fixed on the stationary sample support;providing a moveable wand positioned above the sample support, the moveable wand having a substantially flat hydrophobic surface;applying the aqueous-based processing liquid to the stationary sample support with the non-liquid biological sample;contacting said substantially flat hydrophobic surface of the moveable wand with the aqueous-based processing liquid;forming a substantially contained liquid bridge with the aqueous-based processing liquid between the substantially flat hydrophobic surface of the wand and the hydrophilic surface of the stationary sample support;steadily oscillating the moveable wand back and forth above the stationary sample support and the non-liquid biological sample, therefore steadily oscillating the substantially contained liquid bridge over the stationary sample support and the non-liquid biological sample; wherein contact between said liquid bridge and said hydrophilic surface of said stationary sample support comprises an acute angle;wherein contact between said liquid bridge and said hydrophilic surface of said movable wand comprises an obtuse angle;applying an electrical field or magnetic field to said aqueous-based processing liquid; andefficiently processing the non-liquid biological sample with the aqueous-based processing liquid. 2. A method for efficient sample processing according to claim 1 wherein said step of applying an electrical field or magnetic field to said aqueous-based processing liquid comprises the step of changing a contact angle of said substantially contained liquid bridge with said substantially flat hydrophobic surface of the wand and said hydrophilic surface of the stationary sample support. 3. A method for efficient sample processing according to claim 1 and further comprising a step of as a result of said efficiently processing the non-liquid biological sample with the aqueous-based processing liquid, providing a stained sample. 4. A method for efficient sample processing according to claim 3 wherein said stained sample comprises a property selected from a group consisting of a sharp stain, crisp stain, a stained sample with substantially no background, a stained sample with substantially no non-specific staining, and a stained sample with substantially no hue on the sample support element. 5. A method for efficient sample processing according to claim 1 wherein said step of applying an electrical field or magnetic field to said aqueous-based processing liquid comprises the step of increasing electrostatic charge of said aqueous-based processing liquid. 6. A method for efficient sample processing according to claim 1 and further comprising the step of supporting said stationary sample support with a conducting plate. 7. A method for efficient sample processing according to claim 1 and further comprising the step of applying a voltage between said hydrophobic wand and said stationary sample support. 8. A method for efficient sample processing according to claim 7 wherein said step of applying a voltage between said hydrophobic wand and said stationary sample support comprises the step of applying a voltage selected from a group consisting of static voltage, variable negative voltage, DC bias voltage, DC voltage, and AC voltage. 9. A method for efficient sample processing according to claim 1 and further comprising the step of varying a field strength of said electrical field or said magnetic field. 10. A method for efficient sample processing according to claim 1 wherein said hydrophobic surface comprises a nano structured hydrophobic surface. 11. A method for efficient sample processing according to claim 1 and further comprising the step of pretreating said sample. 12. A method for efficient sample processing according to claim 11 wherein said step of pretreating said sample comprises the step of pretreating said sample with a process selected from a group consisting of deparaffinization, antigen retrieval, epitope retrieval, heat induced antigen retrieval, antigen retrieval, epitope retrieval, proteolytic-induced epitope retrieval, and any combination thereof. 13. A method for efficient sample processing according to claim 1 wherein said substantially contained liquid bridge comprises at least one component in said substantially contained liquid bridge. 14. A method for efficient sample processing according to claim 13 wherein said at least one component is selected from a group consisting of an antibody, a DNA probe, a RNA probe, a particle, a nanoparticle, a micro particle, a salt, a primary antibody, a secondary antibody, a tertiary antibody, a chromogenic substrate, a counterstain compatible with an antibody-enzyme conjugate, a surfactant, a component capable of reducing surface tension of a water based reagent, any combination thereof. 15. A method for efficient sample processing according to claim 1 wherein said step of efficiently processing the non-liquid biological sample with the aqueous-based processing liquid comprises the step of detecting a stain result on said non-liquid biological sample. 16. A method for efficient sample processing according to claim 15 wherein said step of detecting said stain result on said sample comprises the step of detecting said stain result with a process selected from a group of automatic detection, change in property detection, fluorescent detection, magnetic detection, electrical detection, visual detection, radioactive detection, calorimetric detection, and qualitative detection. 17. A method for efficient sample processing according to claim 1 wherein said step of steadily oscillating the moveable wand back and forth above the stationary sample support and the non-liquid biological sample comprises the step of automatically steadily oscillating the moveable wand back and forth above the stationary sample support and the non-liquid biological sample. 18. A method for efficient sample processing according to claim 1 wherein said step of steadily oscillating the moveable wand back and forth above the stationary sample support and the non-liquid biological sample comprises the step of manually steadily oscillating the moveable wand back and forth above the stationary sample support and the non-liquid biological sample.
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