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Keahey P, Si P, Razavi M, Yu S, Lippok N, Villiger M, Padera TP, de la Zerda A, Bouma B. Spectral- and Polarization-Dependent Scattering of Gold Nanobipyramids for Exogenous Contrast in Optical Coherence Tomography. Nano Lett 2021; 21:8595-8601. [PMID: 34644094 PMCID: PMC8555503 DOI: 10.1021/acs.nanolett.1c02291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Polarization-sensitive optical coherence tomography (PS-OCT) reveals the subsurface microstructure of biological tissue and provides information regarding the polarization state of light backscattered from tissue. Complementing OCT's structural signal with molecular imaging requires strategies to simultaneously detect multiple exogenous contrast agents with high specificity in tissue. Specific detection of molecular probes enables the parallel visualization of physiological, cellular, and molecular processes. Here we demonstrate that, by combining PS-OCT and spectral contrast (SC)-OCT measurements, we can distinguish signatures of different gold nanobipyramids (GNBPs) in lymphatic vessels from the surrounding tissue and blood vessels in live mouse models. This technique could well be extended to other anisotropic nanoparticle-based OCT contrast agents and presents significant progress toward enabling OCT molecular imaging.
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Affiliation(s)
- Pelham Keahey
- Wellman
Center for Photomedicine, Massachusetts
General Hospital, Boston, Massachusetts 02114, United States
- Harvard
Medical School, Boston, Massachusetts 02115, United States
- Email for P.K.:
| | - Peng Si
- Department
of Structural Biology, Stanford University, Stanford, California 94305, United States
- Molecular
Imaging Program at Stanford, Stanford, California 94305, United States
| | - Mohammad Razavi
- Harvard
Medical School, Boston, Massachusetts 02115, United States
- Edwin
L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
| | - Shangjie Yu
- Department
of Electrical Engineering, Stanford University, Stanford, California 94305, United States
| | - Norman Lippok
- Wellman
Center for Photomedicine, Massachusetts
General Hospital, Boston, Massachusetts 02114, United States
- Harvard
Medical School, Boston, Massachusetts 02115, United States
| | - Martin Villiger
- Wellman
Center for Photomedicine, Massachusetts
General Hospital, Boston, Massachusetts 02114, United States
- Harvard
Medical School, Boston, Massachusetts 02115, United States
| | - Timothy P. Padera
- Harvard
Medical School, Boston, Massachusetts 02115, United States
- Edwin
L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
| | - Adam de la Zerda
- Department
of Structural Biology, Stanford University, Stanford, California 94305, United States
- Molecular
Imaging Program at Stanford, Stanford, California 94305, United States
- Department
of Electrical Engineering, Stanford University, Stanford, California 94305, United States
- Biophysics
Program at Stanford, Stanford, California 94305, United States
- The
Bio-X Program, Stanford, California 94305, United States
- The
Chan Zuckerberg Biohub, San Francisco, California 94158, United States
- Email for A.d.l.Z.:
| | - Brett Bouma
- Wellman
Center for Photomedicine, Massachusetts
General Hospital, Boston, Massachusetts 02114, United States
- Harvard
Medical School, Boston, Massachusetts 02115, United States
- Institute
for Medical Engineering and Science, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
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