MIT Researcher Wants To Light Up The World With Glowing Plants

By on

CCSS NAS-3 Word Search
Photo Credit: MIT.edu)

If Michael Strano has his way, homes and streets of the future will be lit up with “green” energy — literally — from glowing plants and trees. While that may sound like a lofty goal, the Massachusetts Institute of Technology (MIT) professor of chemical engineering and his team are well on their way to realizing the dream with a luminescent plant, which they hope will someday replace your bedside or table lamp!

To create the glowing plants, the scientists turned to fireflies for assistance. In the bioluminescent insects, an enzyme called luciferase reacts with a molecule called luciferin, causing it to release light. Another molecule, dubbed coenzyme A, helps the process along by getting rid of a byproduct of the reaction that inhibits luciferase activity.

The researchers began by extracting all three chemicals and packaging them in separate nanoparticle carriers. This would ensure that they would reach the appropriate areas of the leaves in the required quantities without harming the plant. The particles containing the luciferin and coenzyme A were targeted to reach the extracellular space of the mesophyll, an inner layer of the leaf, while the carrier with the luciferase, went directly into the mesophyll cells.

Glowing plants (MIT.edu)

The final step entailed infusing the components into the plants. To achieve this, the three particle carriers were placed in a solution. The researchers then submerged some plants into the solution and applied high pressure, enabling the nanoparticles to enter through the stomata, the tiny pores found on the undersurface of the leaves. As the luciferin gradually entered the plant cells, it reacted with the already-present luciferase emitting a glow bright enough to be observed through the leaves.

While the initial luminescence lasted just 45 minutes, the researchers have since been able to increase the time to a respectable 3.5 hours. Though the light emitted by a 10-centimeter watercress seedling is too dim for reading, the team is confident that with further optimization of the chemicals, they can increase both the intensity and duration of the glow. They have even devised a way to “turn off” the glowing plant by using a luciferase inhibitor.

Spinach leaves that detect explosives (Photo Credit: MIT.edu)

This is not the first time scientists have developed glowing plants. However, previous attempts have involved genetically engineering the plants, a slow, laborious process. It also worked on a limited variety of plants and resulted in very faint light. The MIT innovation, which has been successfully tested on watercress, arugula, kale, and spinach, is not only easier to implement, but also appears to be working universally.

Once the technique has been perfected, the researchers, who published the study in the ACS journal Nano Letters in November 2017, envision developing a way to paint or spray plant leaves with the nanoparticles, so that even large trees can become light sources. “Our target is to perform one treatment when the plant is a seedling or a mature plant, and have it last for the lifetime of the plant,” Strano says. “Our work very seriously opens up the doorway to streetlamps that are nothing but treated trees, and to indirect lighting around homes.”

This is not the first time the MIT Lab, a pioneer in Plant nanobionics, has transformed ordinary shrubs. Their previous inventions include explosive-detecting plants that relay the information to smartphones and ones that send out distress signals when in need of water!

Resources:mit.edu

Generate citations in MLA, APA & Chicago formats for this article.

VocabularyPlay Game

appropriatebioluminescentbyproductcomponentsdeviseddistressdurationemittingenvisionenzymeextracellularfirefliesimplementinfusinginhibitorinhibitsintensitylaboriousloftyluminescentmesophylloptimizationpioneerstomatasubmergedtechniqueundersurfaceuniversally
Name:
Date:

Reading Comprehension (11 questions)

  1. What does Michael Strano want to do?
  2. What has his team created to help achieve the goal?
Name:
Date:

Critical Thinking Challenge

List two ways in which the introduction of glowing plants could...

Name:
Date:

Vocabulary in Context

“However, previous attempts have involved genetically engineering the plants, a slow, laborious process.”

In the above sentence, the word laborious most likely means:

...

487 Comments
Sign in to use your custom avatar.
  • Daniela is coolWednesday, June 20, 2018 at 8:55 am
    Cool
    • Exigari is coolWednesday, June 20, 2018 at 8:44 am
      interisting
      • yeet makaraWednesday, June 20, 2018 at 8:42 am
        i really dont have anything to say its so cool!
        • TDTuesday, May 22, 2018 at 6:14 pm
          I like this it is interesting
          • YEPThursday, May 17, 2018 at 6:44 am
            cool
            • so coolFriday, May 11, 2018 at 1:20 pm
              how do people make those plants
              • lolMonday, April 30, 2018 at 2:08 pm
                wow i could light up my room to play iw
                • gerogeMonday, April 30, 2018 at 2:08 pm
                  coolooooolollll
                  • supremeMonday, April 30, 2018 at 2:08 pm
                    so cool
                    • gerogeMonday, April 30, 2018 at 2:07 pm
                      asowme

                      Recent Comments

                      Our Apps and Plugins

                      ALA