Toolkit/scintillator-mediated optogenetics

scintillator-mediated optogenetics

Engineering Method·Research·Since 2019

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

Summary

Scintillator-mediated optogenetics is an engineering method in which implanted Ce:GAGG microparticles convert X-ray irradiation into scintillation light that activates red-shifted opsins. In mice, this enabled wireless modulation of neural activity at tissue depth, including bidirectional control of midbrain dopamine neurons and associated place preference behavior.

Usefulness & Problems

Why this is useful

This method is useful for optogenetic control in deep tissue where conventional external light delivery is limited by poor penetration and hardware invasiveness. The reported platform provides less invasive, wireless control of cellular and neural functions in living animals through X-ray-induced scintillation.

Source:

Using injectable Ce:GAGG microparticles, we successfully activated and inhibited midbrain dopamine neurons in freely moving mice by X-ray irradiation, producing bidirectional modulation of place preference behavior.

Problem solved

It addresses the problem of delivering sufficient light to opsin-expressing cells located deep in tissue without tethered optical fibers or other more invasive light-delivery hardware. The cited study specifically used Ce:GAGG microparticles to transduce X-rays into local light for in vivo activation and inhibition of neurons in freely moving mice.

Problem links

Need precise spatiotemporal control with light input

Derived

Scintillator-mediated optogenetics is an engineering method that uses X-ray-induced scintillation from implanted Ce:GAGG microparticles to activate red-shifted opsins in vivo. In mice, this approach enabled wireless, less invasive control of cellular and neural function at tissue depth.

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete method used to build, optimize, or evolve an engineered system.

Target processes

No target processes tagged yet.

Input: Light

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: spectral hardware requirementoperating role: builder

Implementation involved injectable, chronically implantable Ce:GAGG microparticles and X-ray irradiation to generate scintillation in situ. Functional output depended on expression of compatible red-shifted opsins, specifically ChRmine for activation and GtACR1 for inhibition, in the target cells.

The supplied evidence is centered on a single 2019 study and primarily documents performance with Ce:GAGG microparticles and the opsins ChRmine and GtACR1 in mice. The provided material does not detail dose constraints, spatial resolution, long-term functional stability beyond chronic implantation, or validation in other species or cell types.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Observations

successMouseapplication demomouse

Inferred from claim c4 during normalization. Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow. Derived from claim c4. Quoted text: Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

successMouseapplication demomouse

Inferred from claim c4 during normalization. Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow. Derived from claim c4. Quoted text: Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

successMouseapplication demomouse

Inferred from claim c4 during normalization. Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow. Derived from claim c4. Quoted text: Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

successMouseapplication demomouse

Inferred from claim c4 during normalization. Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow. Derived from claim c4. Quoted text: Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

successMouseapplication demomouse

Inferred from claim c4 during normalization. Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow. Derived from claim c4. Quoted text: Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

successMouseapplication demomouse

Inferred from claim c4 during normalization. Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow. Derived from claim c4. Quoted text: Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

successMouseapplication demomouse

Inferred from claim c4 during normalization. Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow. Derived from claim c4. Quoted text: Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

Supporting Sources

Ranked Claims

Claim 1activation capabilitysupports2019Source 1needs review

Ce:GAGG could effectively activate the red-shifted opsins ChRmine and GtACR1 under X-ray-induced scintillation.

Ce-doped Gd3(Al,Ga)5O12 (Ce:GAGG), could effectively activate red-shifted excitatory and inhibitory opsins, ChRmine and GtACR1, respectively.
Claim 2activation capabilitysupports2019Source 1needs review

Ce:GAGG could effectively activate the red-shifted opsins ChRmine and GtACR1 under X-ray-induced scintillation.

Ce-doped Gd3(Al,Ga)5O12 (Ce:GAGG), could effectively activate red-shifted excitatory and inhibitory opsins, ChRmine and GtACR1, respectively.
Claim 3activation capabilitysupports2019Source 1needs review

Ce:GAGG could effectively activate the red-shifted opsins ChRmine and GtACR1 under X-ray-induced scintillation.

Ce-doped Gd3(Al,Ga)5O12 (Ce:GAGG), could effectively activate red-shifted excitatory and inhibitory opsins, ChRmine and GtACR1, respectively.
Claim 4activation capabilitysupports2019Source 1needs review

Ce:GAGG could effectively activate the red-shifted opsins ChRmine and GtACR1 under X-ray-induced scintillation.

Ce-doped Gd3(Al,Ga)5O12 (Ce:GAGG), could effectively activate red-shifted excitatory and inhibitory opsins, ChRmine and GtACR1, respectively.
Claim 5activation capabilitysupports2019Source 1needs review

Ce:GAGG could effectively activate the red-shifted opsins ChRmine and GtACR1 under X-ray-induced scintillation.

Ce-doped Gd3(Al,Ga)5O12 (Ce:GAGG), could effectively activate red-shifted excitatory and inhibitory opsins, ChRmine and GtACR1, respectively.
Claim 6biocompatibilitysupports2019Source 1needs review

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing chronic implantation.

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing for chronic implantation.
Claim 7biocompatibilitysupports2019Source 1needs review

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing chronic implantation.

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing for chronic implantation.
Claim 8biocompatibilitysupports2019Source 1needs review

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing chronic implantation.

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing for chronic implantation.
Claim 9biocompatibilitysupports2019Source 1needs review

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing chronic implantation.

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing for chronic implantation.
Claim 10biocompatibilitysupports2019Source 1needs review

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing chronic implantation.

Ce:GAGG microparticles were non-cytotoxic and biocompatible, allowing for chronic implantation.
Claim 11in vivo neural controlsupports2019Source 1needs review

Injectable Ce:GAGG microparticles enabled X-ray-driven activation and inhibition of midbrain dopamine neurons in freely moving mice, producing bidirectional modulation of place preference behavior.

Using injectable Ce:GAGG microparticles, we successfully activated and inhibited midbrain dopamine neurons in freely moving mice by X-ray irradiation, producing bidirectional modulation of place preference behavior.
Claim 12in vivo neural controlsupports2019Source 1needs review

Injectable Ce:GAGG microparticles enabled X-ray-driven activation and inhibition of midbrain dopamine neurons in freely moving mice, producing bidirectional modulation of place preference behavior.

Using injectable Ce:GAGG microparticles, we successfully activated and inhibited midbrain dopamine neurons in freely moving mice by X-ray irradiation, producing bidirectional modulation of place preference behavior.
Claim 13in vivo neural controlsupports2019Source 1needs review

Injectable Ce:GAGG microparticles enabled X-ray-driven activation and inhibition of midbrain dopamine neurons in freely moving mice, producing bidirectional modulation of place preference behavior.

Using injectable Ce:GAGG microparticles, we successfully activated and inhibited midbrain dopamine neurons in freely moving mice by X-ray irradiation, producing bidirectional modulation of place preference behavior.
Claim 14in vivo neural controlsupports2019Source 1needs review

Injectable Ce:GAGG microparticles enabled X-ray-driven activation and inhibition of midbrain dopamine neurons in freely moving mice, producing bidirectional modulation of place preference behavior.

Using injectable Ce:GAGG microparticles, we successfully activated and inhibited midbrain dopamine neurons in freely moving mice by X-ray irradiation, producing bidirectional modulation of place preference behavior.
Claim 15in vivo neural controlsupports2019Source 1needs review

Injectable Ce:GAGG microparticles enabled X-ray-driven activation and inhibition of midbrain dopamine neurons in freely moving mice, producing bidirectional modulation of place preference behavior.

Using injectable Ce:GAGG microparticles, we successfully activated and inhibited midbrain dopamine neurons in freely moving mice by X-ray irradiation, producing bidirectional modulation of place preference behavior.
Claim 16platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 17platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 18platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 19platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 20platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 21platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 22platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 23platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 24platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 25platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 26platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 27platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 28platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 29platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 30platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 31platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 32platform capabilitysupports2019Source 1needs review

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals
Claim 33xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 34xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 35xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 36xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 37xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 38xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 39xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 40xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 41xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 42xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 43xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 44xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 45xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 46xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 47xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 48xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.
Claim 49xray dose tolerabilitysupports2019Source 1needs review

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Approval Evidence

1 source2 linked approval claimsfirst-pass slug scintillator-mediated-optogenetics
Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions

Source:

platform capabilitysupports

Scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at tissue depth in living animals.

Thus, scintillator-mediated optogenetics enables less invasive, wireless control of cellular functions at any tissue depth in living animals

Source:

xray dose tolerabilitysupports

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Pulsed X-ray irradiation at a clinical dose level was sufficient to elicit behavioral changes without reducing the number of radiosensitive cells in the brain and bone marrow.

Source:

Comparisons

Source-backed strengths

Ce:GAGG microparticles effectively activated the red-shifted opsins ChRmine and GtACR1 under X-ray-induced scintillation. The particles were reported as non-cytotoxic and biocompatible, permitting chronic implantation, and the approach achieved bidirectional behavioral modulation through activation or inhibition of midbrain dopamine neurons in freely moving mice.

scintillator-mediated optogenetics and doxycycline-dependent photoactivated gene expression address a similar problem space.

Shared frame: same top-level item type; same primary input modality: light

scintillator-mediated optogenetics and oligomerization reactions address a similar problem space.

Shared frame: same top-level item type; same primary input modality: light

scintillator-mediated optogenetics and targeted mutagenesis of Arabidopsis phototropins address a similar problem space.

Shared frame: same top-level item type; same primary input modality: light

Ranked Citations

  1. 1.

    Extracted from this source document.