Sugar Molecule
Image Credit: Courtesy of University of Manchester
Scientific Frontline: Extended "At a Glance" Summary: Tunable Carbohydrate Biomolecules
The Core Concept: Researchers have developed precisely modified sugar building blocks that can be automatically assembled into defined structures, creating powerful new tools to study how complex carbohydrates function in biology and disease.
Key Distinction/Mechanism: Unlike natural sugars, which are structurally complex and notoriously difficult to control, these modified biomolecules are created by replacing specific chemical parts with fluorine. This allows scientists to subtly "tune" internal molecular interactions without disrupting the sugar's overall shape.
Major Frameworks/Components:
- Alginate Focus: The study specifically targeted alginates, a class of complex sugars widely used as food thickeners and in medical wound dressings.
- Fluorination: By introducing fluorine atoms into the molecular structure, the modified sugars can act as highly sensitive "reporters" during spectroscopic analysis.
- Automated Synthesis: The team used automated chemical synthesis to construct customized libraries of sugar chains step-by-step, ensuring high precision and exact modification placement.
- Nuclear Magnetic Resonance (NMR): Advanced analytical techniques, including NMR spectroscopy, were utilized to prove that the fluorinated sugars retain their original overall conformation despite altered internal interactions.
Branch of Science: Chemical Biology, Biochemistry, Biotechnology, and Materials Science.
Future Application: These modified biomolecules will be used to track molecular interactions, uncover how enzymes process sugars during infections, and engineer highly precise, tailored carbohydrate-based materials for medicine and industry.
Why It Matters: Carbohydrates dictate cellular communication and protein interactions, yet their natural complexity has hindered deep molecular study. This highly controlled, scalable platform bridges a major gap in molecular science, allowing researchers to isolate exactly how carbohydrate structures control biological behavior.
Researchers at the Manchester Institute of Biotechnology have developed a new way to precisely build and modify complex sugar molecules, creating powerful tools to study how they function in biology and disease.
Sugars are not just a source of energy—they also play a crucial role in how cells communicate, how proteins interact, and how materials behave in medicine and industry. However, studying these processes is challenging because sugar molecules are structurally complex and difficult to control.
In a new study published in Angewandte Chemie International Edition, the team—led by Professor Gavin Miller—has created modified sugar building blocks that can be assembled automatically into defined structures, enabling scientists to probe their behavior in unprecedented detail.
The team focused on alginates—a type of sugar widely used as a thickener in food and as a component of wound dressings. By introducing a small chemical modification (replacing part of the molecule with fluorine), they were able to subtly alter how these sugars behave without disrupting their overall structure.
Crucially, the researchers showed that these modified building blocks can be assembled using automated synthesis—a process that allows complex molecules to be built step by step with high precision. This enabled the creation of a library of tailored sugar chains with specific modifications at defined positions.
Unlocking How Structure Controls Function
Using advanced analytical techniques, including nuclear magnetic resonance (NMR), the team demonstrated that the modified sugars retain their overall shape, even though key internal interactions are altered.
This finding is significant because it shows that scientists can “tune” specific features of a molecule without fundamentally changing how it behaves—allowing them to isolate and study individual interactions in complex biological systems.
—Gavin Miller, Professor of Chemical Biology
New Tools for Biotechnology and Medicine
The ability to design and synthesize these molecules opens up new possibilities for research and application.
Fluorinated sugars can act as sensitive “reporters,” making it easier to track interactions between molecules using spectroscopic methods. They can also help scientists better understand how enzymes process sugars—an important step in areas ranging from infection biology to materials science.
More broadly, this work lays the foundation for developing tailored carbohydrate-based materials, where structure and function can be engineered with precision.
By providing a reliable method to build and study these modified sugars, the research offers a new platform for exploring how carbohydrate structure affects behavior—helping to bridge a long-standing gap in molecular science.
Published in journal: Angewandte Chemie International Edition
Authors: Sean T. Evans, Nishu Yadav, Wouter A. Remmerswaal, Daan Hoogers, Koen N. A. van de Vrande, Sarah Hosking, Ana Poveda, Jeroen D. C. Codée, Jesús Jiménez-Barbero, Martina Delbianco, and Gavin J. Miller
Source/Credit: University of Manchester | Enna Bartlett
Edited by: Scientific Frontline
Reference Number: bchm062426_01
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