Controlled alignment of nanobarcodes encoding specific information for scanning probe microscopy (SPM) reading
US7361821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Oct 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/924
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
The methods, apparatus and compositions disclosed herein concern the detection, identification and/or sequencing of biomolecules, such as nucleic acids or proteins. In certain embodiments of the invention, coded probes comprising a probe molecule attached to one or more nanobarcodes may be allowed to bind to one or more target molecules. After binding and separation from unbound coded probes, the bound coded probes may be aligned on a surface and analyzed by scanning probe microscopy. The nanobarcodes may be any molecule or complex that is distinguishable by SPM, such as carbon nanotubes, fullerenes, submicrometer metallic barcodes, nanoparticles or quantum dots. Where the probes are oligonucleotides, adjacent coded probes hybridized to a target nucleic acid may be ligated together before alignment and SPM analysis. Compositions comprising coded probes are also disclosed herein. Systems for biomolecule analysis may comprise a scanning probe microscopy (SPM) instrument and at least one coded probe attached to a surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.