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Supramolecular Functional Chemistry Lab
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The lab combines antibodies with polymers to create materials with new functions.
AboutAbout the lab
Supramolecular synthesis and functionalization using biopolymers
The Supramolecular Functional Chemistry Lab aims to create functional materials that combine the strengths of biopolymers (especially monoclonal antibodies) with those of synthetic polymers and low-molecular-weight compounds by forming composites of them.
The lab extracts the essential structural features of biomolecules, designs and synthesizes molecules and polymers that take over those roles, and aims to achieve new functions in materials that assemble in a specific manner.
In recent years, the lab has also been working on sulfur-containing polymers made from sulfur, a surplus resource.
Key terms
- Monoclonal antibody
- A type of antibody, a biopolymer that binds specifically and strongly to a target molecule
- Noncovalent bond
- A weak bond that links molecules together, such as a hydrogen bond or a metal–ligand interaction
- Photoinduced electron transfer
- A reaction in which, upon light irradiation, an electron moves from an electron-donating molecule (donor) to an electron-accepting molecule (acceptor)
NewsLab news
Paper on the dispersion and precipitation of sulfur-containing polymers accepted by Macromolecular Rapid Communications
Review article by a Project Assistant Professor accepted by Nippon Gomu Kyokaishi (Journal of the Society of Rubber Science and Technology, Japan)
Master's student receives an Excellent Presentation Award at a joint presentation meeting of the Green Chemistry Study Group and others
Paper by a doctoral student published in Nature Communications
Paper by an Assistant Professor and colleagues wins the Paper Award of the Adhesion Society of Japan
ResearchResearch themes
The lab aims to create materials with unprecedented functions by combining biopolymers such as antibodies with synthetic polymers and low-molecular-weight compounds. Research themes include composite catalysts of antibodies and metal complexes, control of electron transfer induced by light, and materials based on noncovalent bonds.
*Illustrative imageAntibody Complexes That Move Electrons with Light
The lab produced antibodies that bind porphyrin and confirmed that electron transfer upon light irradiation (photoinduced electron transfer) is accelerated. It also built a system that generates hydrogen using the antibody–porphyrin complex.
*Illustrative imageCatalysts of Antibodies and Metal Complexes
Complexes of antibodies and metal complexes are used as catalysts. The lab has so far shown that an iron porphyrin–antibody complex catalyzes a peroxidation reaction, and that a rhodium complex–antibody complex produces the L-enantiomer from a precursor of alanine.
*Illustrative imageMaterials Linked by Noncovalent Bonds
The lab makes materials using weak noncovalent bonds. So far, it has developed a system that switches gels between adhesion and dissociation with light, as well as materials cross-linked by hydrogen bonds and metal–ligand interactions that show self-healing and shape-memory properties.
*Illustrative imageControlling Electron Transfer with Polymers
Taking its cue from the fact that proteins control electron transfer in photosynthesis, the lab attempts the same kind of control with synthetic polymers. It found that when polyvinylpyrrolidone forms a complex with porphyrin, more electron-transfer products are generated by light.
MembersFaculty
The members of the Supramolecular Functional Chemistry Lab consist of faculty, project researchers, project academic policy researchers, a secretary, technical assistants, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorHiroyasu Yamaguchi
- Assistant ProfessorYuichiro Kobayashi
- Project Assistant ProfessorDaisho Yamawaki
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Monoclonal antibodies (5)” Linda Bartlett (Photographer) / Public domain (cropped)
- Antibody Complexes That Move Electrons with Light: “Antibody IgG1 surface” Tokenzero / CC BY-SA 4.0 (cropped)
- Catalysts of Antibodies and Metal Complexes: “Monoclonal antibodies (3)” Linda Bartlett (Photographer) / Public domain (cropped)
- Materials Linked by Noncovalent Bonds: “Organogel processus de formation” Mforesto / CC BY-SA 3.0 (cropped)
- Controlling Electron Transfer with Polymers: “Photosynthesis in action” Rcaravit / CC BY 4.0 (cropped)
- Related lab (Precision Polymer Science Lab): “Plastic pellets for injection molding” Teemeah / CC BY-SA 3.0 (cropped)
- Related lab (Adsorption Chemistry Lab): “Bruker 600 Mhz NMR Spectrometer” SiriusHT / CC BY-SA 4.0 (cropped)
- Related lab (Polymer Structural Science Lab): “Caulobacter crescentus CcrM” Jcaceresvergara / CC BY-SA 4.0 (cropped)
- Related lab (Functional Molecular Materials Lab): “Fluorescence of Anthracene under UV light” TimJW12 / CC BY-SA 4.0 (cropped)
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