Core Technology

Technology

Bioluminescent Genetic Technology Based on Fluorescent and Bioluminescent Proteins

LEP's core technology is a bioluminescent genetic system utilizing fluorescent proteins and bioluminescent proteins. This technology has evolved as bioimaging technology for visualizing molecular and cellular activities in living organisms, widely used in life science, medical, and drug discovery research.

At LEP, we leverage this technology to introduce luminescent genes into plants, developing self-luminous plants.

Challenges of Conventional Technology

Feature

Fluorescent and bioluminescent proteins are widely used as bioimaging technology. However, conventional technologies faced the following challenges.

01

Fluorescence Imaging

  • Requires strong excitation light for observation
  • Causes phototoxicity (cell damage from light)
  • Long-term observation is difficult
02

Bioluminescence Imaging

  • Weak luminescent signal
  • Real-time observation is difficult

This created the need for a luminescence system that requires no light irradiation and enables high-brightness observation.

Flowers and leaves of a Nano-lantern plant glowing green in the dark
CORE-TECHNOLOGY

Nano-lantern

Proprietary luminescent protein technology without parallel

High-Brightness Luminescent Protein: Nano-lantern

Professor Kenji Nagai's research group developed Nano-lantern, a high-brightness luminescent protein that fuses bioluminescent proteins with fluorescent proteins.

A bioluminescent mushroom glowing green in the dark

Autonomous Luminescence

Self-Luminescence Technology

No substrate addition required

Redesigning bioluminescent mushroom systems within plants. Building autonomous circuits that glow continuously without external substrate addition.

Structure of the luminescent protein Nano-lantern, which uses bioluminescence resonance energy transfer (BRET)

High Brightness

High-Luminosity Technology

Outstanding brightness enhancement

Our proprietary Nano-lantern technology fuses luminescent enzymes with fluorescent proteins, optimizing energy transfer to achieve 20x brightness over conventional methods.

Solutions of luminescent proteins glowing in colors from blue to red

Multi-Color

Multi-Color Technology

Cutting-edge color diversification

By precisely controlling light wavelengths, we achieved approximately 20 color variations in luminescent proteins, opening infinite possibilities for illumination and landscape design.

Application Areas

Applications

Nano-lantern technology enables broad applications spanning from life science research to environmental and urban infrastructure, built on bioimaging and gene expression technologies.

Biosensor

Luminescent Biosensors

Nano-lantern is applied as a luminescent biosensor that detects physiological activities such as calcium ions, ATP, and membrane potential with high sensitivity.

Bioimaging

Whole-Organism Bioimaging

High-brightness luminescence enables real-time observation at the whole-organism level, previously difficult to achieve. Enables multi-color simultaneous observation and video-rate cellular activity monitoring.

Plant Luminescence

Plant Luminescence Technology

Introducing Nano-lantern genes into plants to develop self-luminous plants. We have also succeeded in creating liverworts that emit three colors of light.

Potential for Social Implementation

Social Implementation

Luminous plant technology is being explored for the following applications.

A tree-lined path glowing green at night, with people walking beneath
Lighting

Lighting Infrastructure

Self-luminous street trees, park lighting, landscape illumination—toward lighting technology that requires no electricity.

Leafy vegetables glowing green in a field at night
Sensing

Environmental Sensing

Plant-based biosensors that luminesce in response to environmental changes. For detecting pollutants and monitoring ecosystems.

Street trees glowing green in a city plaza, with people looking up at them
Smart City

Smart City

Contributing to environmentally symbiotic urban systems that integrate natural environments with urban infrastructure.

Would you like to explore the future possibilities
with our proprietary luminescent protein technology?