Source 1primary paper2025MED
Toolkit/photoacoustic imaging
photoacoustic imaging
Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
Recent technological innovations, including ... super-resolution and photoacoustic imaging ... have created new opportunities for investigating the cellular and molecular basis of VDs.
Usefulness & Problems
Why this is useful
Photoacoustic imaging is listed as an emerging technology that creates new opportunities to investigate vascular disease mechanisms.; investigating the cellular and molecular basis of vascular diseases; Photoacoustic imaging is the modality used to read out the contrast generated by the photoswitchable hybrid probes. In the abstract it is the method that demonstrates visualization in cells and deep tissue.; visualizing probe contrast; cell imaging; deep-tissue imaging
Source:
Photoacoustic imaging is listed as an emerging technology that creates new opportunities to investigate vascular disease mechanisms.
Source:
investigating the cellular and molecular basis of vascular diseases
Source:
Photoacoustic imaging is the modality used to read out the contrast generated by the photoswitchable hybrid probes. In the abstract it is the method that demonstrates visualization in cells and deep tissue.
Source:
visualizing probe contrast
Source:
cell imaging
Source:
deep-tissue imaging
Problem solved
It is presented in the context of overcoming the insufficient resolution of traditional imaging and clinical assays.; limited resolution of traditional imaging approaches; It provides a way to detect the high-contrast absorption changes produced by the probes in biologically relevant settings. This supports imaging beyond purely fluorescent readouts.; provides a readout modality for the absorption-based photoswitchable probes
Source:
It is presented in the context of overcoming the insufficient resolution of traditional imaging and clinical assays.
Source:
limited resolution of traditional imaging approaches
Source:
It provides a way to detect the high-contrast absorption changes produced by the probes in biologically relevant settings. This supports imaging beyond purely fluorescent readouts.
Source:
provides a readout modality for the absorption-based photoswitchable probes
Problem links
limited resolution of traditional imaging approaches
LiteratureIt is presented in the context of overcoming the insufficient resolution of traditional imaging and clinical assays.
Source:
It is presented in the context of overcoming the insufficient resolution of traditional imaging and clinical assays.
provides a readout modality for the absorption-based photoswitchable probes
LiteratureIt provides a way to detect the high-contrast absorption changes produced by the probes in biologically relevant settings. This supports imaging beyond purely fluorescent readouts.
Source:
It provides a way to detect the high-contrast absorption changes produced by the probes in biologically relevant settings. This supports imaging beyond purely fluorescent readouts.
Published Workflows
Objective: Develop a multifunctional genetically engineered bacterial bio-composite for dual-modality imaging-guided synergistic chemo-FUAS tumor therapy.
Why it works: The abstract states that the bio-composite preferentially colonizes hypoxic tumor tissue, gas vesicles provide cavitation-mediated FUAS synergy and ultrasound imaging, polydopamine provides a uniform photoacoustic signal, and FUAS triggers controlled doxorubicin release.
preferential colonization of hypoxic tumor tissuegas-vesicle-mediated cavitation to synergize FUASgas-vesicle-mediated ultrasound imagingpolydopamine-mediated photoacoustic signal generationFUAS-triggered controlled doxorubicin releasegenetic engineering of bacteriasurface coating with polydopaminedrug loading with doxorubicinultrasound imaging guidancephotoacoustic imaging guidancefocused ultrasound ablation surgery
Objective: Develop and demonstrate a non-fluorescent photoswitchable hybrid probe platform that can be reversibly switched with near-infrared light and visualized by photoacoustic imaging in cells and deep tissue.
Why it works: The workflow couples thermochromic dyes to absorbing nanoparticles so that near-infrared light can generate local photothermal heating, which in turn switches temperature-sensitive absorption states that are detectable by photoacoustic imaging.
photothermal heating of absorbing nanoparticlesthermochromic switching of dye absorption statesnear-infrared laser photoswitchingphotoacoustic imaging
Taxonomy & Function
Primary hierarchy
Technique Branch
Method: A concrete measurement method used to characterize an engineered system.
Mechanisms
absorption spectral shiftingphotoacoustic signal generationphotothermal heatingreversible photoswitchingTechniques
Functional AssayTarget processes
editingrecombinationInput: Light
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: spectral hardware requirementoperating role: sensor
Execution requires the hybrid probes and photoacoustic imaging instrumentation. The abstract also links switching to near-infrared laser excitation of the probe system.; requires photoacoustic imaging instrumentation; depends on sufficient probe contrast
the abstract does not provide protocol details or benchmark comparisons
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Source 2primary paper2016Scientific Reports
Ranked Claims
AI enhances data integration, risk prediction, and clinical interpretability in vascular disease research.
Optogenetics and organ-on-chip platforms allow controlled manipulation and physiologically relevant modeling in vascular disease research.
Single-cell and spatial transcriptomics, super-resolution and photoacoustic imaging, microfluidic organ-on-chip platforms, CRISPR/Cas9-based gene editing, and AI have created new opportunities for investigating the cellular and molecular basis of vascular diseases.
These emerging technologies enable high-resolution mapping of cellular heterogeneity and functional alterations, facilitating biomarker discovery, disease modeling, and therapeutic development in vascular diseases.
Future progress in vascular disease research should prioritize multi-center large-scale validation studies, harmonization of assay protocols, and integration with clinical datasets and human samples.
Multi-omics approaches and computational modeling hold promise for unraveling disease complexity, and digital twins may accelerate personalized medicine in vascular disease research and treatment.
Integrating single-cell and multiomics approaches highlights disease-driving cell types and gene programs in vascular disease.
The paper introduces photoswitchable hybrid probes composed of thermochromic dye and absorbing nanoparticles.
Here we introduce a novel concept of photoswitchable hybrid probes consisting of thermochromic dye and absorbing nanoparticles
The hybrid probes switch temperature-sensitive light-dark states and absorption spectral shifts through controllable photothermal heating of doped nanoparticles.
temperature-sensitive light-dark states and spectral shifts in absorption can be switched through controllable photothermal heating of doped nanoparticles
Photoacoustic imaging showed that the probes have high contrast sufficient for visualization in cells and deep tissue.
Photoacoustic imaging revealed the high contrast of these probes, which is sufficient for their visualization in cells and deep tissue.
The new photoswitchable multicolour probes may be useful for multimodal cellular diagnostics and potentially for magnetic and photothermal therapy.
Our results suggest that these new photoswitchable multicolour probes can be used for multimodal cellular diagnostics and potentially for magnetic and photothermal therapy.
Proof-of-concept was demonstrated using two types of temperature-sensitive dyes doped with magnetic nanoparticles that were reversibly photoswitched by a near-infrared laser.
The proof-of-concept is demonstrated through the use of two different types of temperature-sensitive dyes doped with magnetic nanoparticles and reversibly photoswitched by a near-infrared laser.
Approval Evidence
2 sources4 linked approval claimsfirst-pass slug photoacoustic-imaging
Recent technological innovations, including ... super-resolution and photoacoustic imaging ... have created new opportunities for investigating the cellular and molecular basis of VDs.
Source:
Photoacoustic imaging revealed the high contrast of these probes, which is sufficient for their visualization in cells and deep tissue.
Source:
capabilitysupports
Single-cell and spatial transcriptomics, super-resolution and photoacoustic imaging, microfluidic organ-on-chip platforms, CRISPR/Cas9-based gene editing, and AI have created new opportunities for investigating the cellular and molecular basis of vascular diseases.
Source:
capabilitysupports
These emerging technologies enable high-resolution mapping of cellular heterogeneity and functional alterations, facilitating biomarker discovery, disease modeling, and therapeutic development in vascular diseases.
Source:
future directionsupports
Future progress in vascular disease research should prioritize multi-center large-scale validation studies, harmonization of assay protocols, and integration with clinical datasets and human samples.
Source:
performancesupports
Photoacoustic imaging showed that the probes have high contrast sufficient for visualization in cells and deep tissue.
Photoacoustic imaging revealed the high contrast of these probes, which is sufficient for their visualization in cells and deep tissue.
Source:
Comparisons
Source-stated alternatives
The abstract frames the work against conventional photoswitchable fluorescent proteins, implying fluorescence-based readouts as the contrasted approach.
Source:
The abstract frames the work against conventional photoswitchable fluorescent proteins, implying fluorescence-based readouts as the contrasted approach.
Source-backed strengths
revealed high contrast; supported visualization in cells and deep tissue
Source:
revealed high contrast
Source:
supported visualization in cells and deep tissue
Compared with Cas12aVIP
photoacoustic imaging and Cas12aVIP address a similar problem space because they share editing, recombination.
Shared frame: same top-level item type; shared target processes: editing, recombination; same primary input modality: light
Strengths here: appears more independently replicated; looks easier to implement in practice.
Compared with spatial transcriptomics
photoacoustic imaging and spatial transcriptomics address a similar problem space because they share editing, recombination.
Shared frame: same top-level item type; shared target processes: editing, recombination; same primary input modality: light
Compared with two-photon excitation microscopy
photoacoustic imaging and two-photon excitation microscopy address a similar problem space because they share recombination.
Shared frame: same top-level item type; shared target processes: recombination; same primary input modality: light
Strengths here: appears more independently replicated; looks easier to implement in practice.
Ranked Citations
- 1.
- 2.