Toolkit/light activation at variable amplitudes (LAVA)

light activation at variable amplitudes (LAVA)

Delivery Strategy·Research·Since 2019

Also known as: engineered illumination devices, LAVA

Taxonomy: Mechanism Branch / Architecture. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

LAVA is a set of engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes. It delivers user-defined light intensity, temporal sequences, and spatial patterns to control signaling responses, including optogenetic Wnt/beta-catenin pathway activation.

Usefulness & Problems

Why this is useful

LAVA is useful for imposing controlled optical input waveforms on cells, enabling systematic interrogation of how signaling pathways respond to light dose, timing, and spatial patterning. Its optical design was optimized for uniform illumination of multi-well cell culture plates, supporting high-throughput optogenetic activation of signaling pathways and protein-protein interactions.

Problem solved

LAVA addresses the need for illumination hardware that can deliver reproducible, user-defined, and spatially patterned optogenetic stimulation across multi-well culture formats. This is particularly relevant for studying signaling dynamics where pathway output depends on light amplitude and temporal structure.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Architecture: A delivery strategy grouped with the mechanism branch because it determines how a system is instantiated and deployed in context.

Target processes

signaling

Input: Light

Implementation Constraints

LAVA was designed as an illumination platform for cell culture experiments, with optical optimization for uniform illumination of multi-well plates. The available evidence supports use in optogenetic assays requiring control over light intensity, timing, and spatial patterning, but does not provide further practical details on construction, electronics, or operating parameters.

The supplied evidence is limited to a single 2019 source and focuses on device capability and one application in optoWnt signaling. The evidence provided does not specify hardware components, wavelength ranges, calibration procedures, or validation across multiple optogenetic systems beyond signaling pathways and protein-protein interactions.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1control capabilitysupports2019Source 1needs review

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)
Claim 2control capabilitysupports2019Source 1needs review

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)
Claim 3control capabilitysupports2019Source 1needs review

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)
Claim 4control capabilitysupports2019Source 1needs review

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)
Claim 5control capabilitysupports2019Source 1needs review

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)
Claim 6control capabilitysupports2019Source 1needs review

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)
Claim 7control capabilitysupports2019Source 1needs review

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)
Claim 8design optimizationsupports2019Source 1needs review

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.
Claim 9design optimizationsupports2019Source 1needs review

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.
Claim 10design optimizationsupports2019Source 1needs review

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.
Claim 11design optimizationsupports2019Source 1needs review

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.
Claim 12design optimizationsupports2019Source 1needs review

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.
Claim 13design optimizationsupports2019Source 1needs review

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.
Claim 14design optimizationsupports2019Source 1needs review

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.
Claim 15dose responsesupports2019Source 1needs review

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).
Claim 16dose responsesupports2019Source 1needs review

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).
Claim 17dose responsesupports2019Source 1needs review

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).
Claim 18dose responsesupports2019Source 1needs review

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).
Claim 19dose responsesupports2019Source 1needs review

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).
Claim 20dose responsesupports2019Source 1needs review

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).
Claim 21dose responsesupports2019Source 1needs review

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).
Claim 22patterning resultsupports2019Source 1needs review

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro
Claim 23patterning resultsupports2019Source 1needs review

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro
Claim 24patterning resultsupports2019Source 1needs review

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro
Claim 25patterning resultsupports2019Source 1needs review

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro
Claim 26patterning resultsupports2019Source 1needs review

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro
Claim 27patterning resultsupports2019Source 1needs review

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro
Claim 28patterning resultsupports2019Source 1needs review

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro
Claim 29practicalitysupports2019Source 1needs review

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling
Claim 30practicalitysupports2019Source 1needs review

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling
Claim 31practicalitysupports2019Source 1needs review

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling
Claim 32practicalitysupports2019Source 1needs review

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling
Claim 33practicalitysupports2019Source 1needs review

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling
Claim 34practicalitysupports2019Source 1needs review

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling
Claim 35practicalitysupports2019Source 1needs review

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling

Approval Evidence

1 source5 linked approval claimsfirst-pass slug light-activation-at-variable-amplitudes-lava
novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)

Source:

control capabilitysupports

LAVA devices enable optogenetic Wnt/beta-catenin pathway activation at user-defined intensities, temporal sequences, and spatial patterns.

optogenetic Wnt/β-catenin pathway activation can be controlled at user-defined intensities, temporal sequences, and spatial patterns using novel engineered illumination devices for optogenetic photostimulation and light activation at variable amplitudes (LAVA)

Source:

design optimizationsupports

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

The optical design of LAVA devices was optimized for uniform illumination of multi-well cell culture plates to enable high-throughput, spatiotemporal optogenetic activation of signaling pathways and protein-protein interactions.

Source:

dose responsesupports

In human embryonic stem cells, variation in light intensity using LAVA induced a dose-dependent response in optoWnt activation and downstream Brachyury expression.

Using the LAVA devices, variation in light intensity induced a dose-dependent response in optoWnt activation and downstream Brachyury expression in human embryonic stem cells (hESCs).

Source:

patterning resultsupports

Time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro.

time-varying and spatially localized patterns of light revealed tissue patterning that models embryonic presentation of Wnt signals in vitro

Source:

practicalitysupports

LAVA devices provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling.

The engineered LAVA devices thus provide a low-cost, user-friendly method for high-throughput and spatiotemporal optogenetic control of cell signaling

Source:

Comparisons

Source-backed strengths

The reported strengths are variable-amplitude light delivery, programmable temporal and spatial stimulation, and optimization for uniform illumination of multi-well plates. In human embryonic stem cells, changing light intensity with LAVA produced a dose-dependent optoWnt response and downstream Brachyury expression, providing functional validation in a developmental signaling context.

Ranked Citations

  1. 1.

    Extracted from this source document.