• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Wednesday, September 10, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Chemistry

Researchers discover new charge transfer and separation process

Bioengineer by Bioengineer
April 29, 2019
in Chemistry
Reading Time: 2 mins read
0
IMAGE
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

SUTD worked with an international team of researchers to develop glutathione fluorescent probes based on the discovery of Twisted Intramolecular Charge Shuttle (TICS)

IMAGE

Credit: SUTD

Charge transfer and separation is a fundamental process in the energy conversion that powers life on earth. Besides being used in solar cells and photocatalyst, this process is even in photosynthesis as it enables energy conversion by harvesting light and then transferring and converting into chemical energy.

However, deeper understanding of charge transfer and separation at a molecular level continues to be a challenge as this process is very quick – light absorption induced charge transfer and separation takes place over a few femtoseconds to a few picoseconds.

An international team of researchers from the Singapore University of Technology and Design (SUTD), Chinese Academy of Science, Pohang University of Science and Technology and Vanderbilt University, overcame this challenge by using fluorescence in their model systems and studying the change in fluorescence output – intensity, lifetime and wavelength, etc – and discovered a new charge transfer and separation process, Twisted Intramolecular Charge Shuttle (TICS). In TICS molecules, the charge donor and acceptor fragments dynamically switch roles after absorbing light and experiencing a structural twisting, thus exhibit a ‘charge shuttle’ phenomenon.

TICS’ unique bidirectional, role switching process differentiates TICS from a similar process’ unidirectional charge transfer mechanism named the Twisted Intramolecular Charge Transfer (TICT). While TICT has facilitated the development of many functional materials and devices such as bright and photostable fluorophores, dark quenchers, viscosity sensors and polarity sensors, TICS paves a new avenue for chemists to construct unique and useful fluorescent probes in a wide range of chemical families of fluorophores.

For instance, the research team constructed TICS fluorescent probes which can be used to detect glutathione, an antioxidant found in plants and animals that is essential in removing many toxic chemicals in biological cells. Similarly, another type of specifically constructed TICS based probe would be able to detect phosgene, a colourless and highly toxic gas that was used as a chemical weapon agent during World War I, which could potentially be used in terrorist attacks.

SUTD’s Assistant Professor Liu Xiaogang explained how the research team developed TICS based glutathione fluorescent probes and their efforts to transform the dye chemistry from trial-and-error into molecular engineering.

“Research in this area of study has often been based on trial-and-error. At SUTD, where design is a key component in our research strategy, we made sure to take on a design-centric approach in our research process. We first analysed chemical big data and spotted a pattern between molecular structures and fluorescent properties. After understanding this TICS process, we then designed a probe to prove this concept,” said Assistant Professor Liu.

###

The paper, entitled ‘A Photoexcitation Induced Twisted Intramolecular Charge Shuttle (TICS)’, has been published in Angewandte Chemie International Edition, a leading journal in the area of general chemistry.

Media Contact
Jessica Sasayiah
[email protected]

Related Journal Article

http://dx.doi.org/10.1002/anie.201902766

Tags: Atomic/Molecular/Particle PhysicsBiochemistryBiomedical/Environmental/Chemical EngineeringChemistry/Physics/Materials SciencesMaterialsMolecular PhysicsTechnology/Engineering/Computer Science
Share12Tweet8Share2ShareShareShare2

Related Posts

blank

Most Precise Confirmation of Hawking’s Area Theorem from Clearest Black Hole Collision Signal Yet

September 10, 2025
Gravitational Waves Confirm Hawking and Kerr Black Hole Theories

Gravitational Waves Confirm Hawking and Kerr Black Hole Theories

September 10, 2025

A Decade Later: Gravitational Waves Confirm Stephen Hawking’s Black Hole Area Theorem

September 10, 2025

When Magnetic Moments Clash: How Quantum Mechanics Unlocks the Secrets of Iron Catalysts

September 10, 2025
Please login to join discussion

POPULAR NEWS

  • blank

    Breakthrough in Computer Hardware Advances Solves Complex Optimization Challenges

    151 shares
    Share 60 Tweet 38
  • New Drug Formulation Transforms Intravenous Treatments into Rapid Injections

    116 shares
    Share 46 Tweet 29
  • Physicists Develop Visible Time Crystal for the First Time

    59 shares
    Share 24 Tweet 15
  • First Confirmed Human Mpox Clade Ib Case China

    56 shares
    Share 22 Tweet 14

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Brain Lung Cancer Cells Create Electrical Links with Neurons, Driving Tumor Growth

Discovery of “Brain Dial” Mechanism Influencing Consumption Behavior in Mice

Lung Cancer Remodels Bone Marrow Immune Cells, Undermining the Body’s Defenses

  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.