EconPapers    
Economics at your fingertips  
 

Label-free 3D molecular imaging of living tissues using Raman spectral projection tomography

Elzbieta Stepula, Anders R. Walther, Magnus Jensen, Dev R. Mehrotra, Mu H. Yuan, Simon V. Pedersen, Vishal Kumar, Eileen Gentleman, Michael B. Albro, Martin A. B. Hedegaard () and Mads S. Bergholt ()
Additional contact information
Elzbieta Stepula: King’s College London
Anders R. Walther: University of Southern Denmark
Magnus Jensen: King’s College London
Dev R. Mehrotra: Boston University
Mu H. Yuan: King’s College London
Simon V. Pedersen: University of Southern Denmark
Vishal Kumar: King’s College London
Eileen Gentleman: King’s College London
Michael B. Albro: Boston University
Martin A. B. Hedegaard: University of Southern Denmark
Mads S. Bergholt: King’s College London

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract The ability to image tissues in three dimensions (3D) with label-free molecular contrast at the mesoscale would be a valuable capability in biology and biomedicine. Here, we introduce Raman spectral projection tomography (RSPT) for volumetric molecular imaging with optical sub-millimeter spatial resolution. We have developed a RSPT imaging instrument capable of providing 3D molecular contrast in transparent and semi-transparent samples. We also created a computational pipeline for multivariate reconstruction to extract label-free spatial molecular information from Raman projection data. Using these tools, we demonstrate imaging and visualization of phantoms of various complex shapes with label-free molecular contrast. Finally, we apply RSPT as a tool for imaging of molecular gradients and extracellular matrix heterogeneities in fixed and living tissue-engineered constructs and explanted native cartilage tissues. We show that there exists a favorable balance wherein employing Raman spectroscopy, with its advantages in live cell imaging and label-free molecular contrast, outweighs the reduction in imaging resolution and blurring caused by diffuse photon propagation. Thus, RSPT imaging opens new possibilities for label-free molecular monitoring of tissues.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-51616-y Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51616-y

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-51616-y

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().

 
Page updated 2025-03-19
Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51616-y