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Hiraoka Lab
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The lab explores how molecules come together to form structures, from the perspective of time.
AboutAbout the lab
Organization arises in time.
Hiraoka Lab builds on supramolecular chemistry, coordination chemistry, and synthetic organic chemistry to study self-assembly, the process by which molecules come together to form structures.
The lab's guiding question is "What governs temporal organization?"
Rather than looking only at what exists at a given moment, such as structure, state, and equilibrium, the lab focuses on how organization arises over time.
The lab aims not only to explain phenomena but also to find the principles behind them and derive new concepts.
Key terms
- Supramolecular chemistry
- The chemistry of large assemblies (supramolecules) formed when molecules come together through weak interactions
- Self-assembly
- A phenomenon in which molecules come together on their own, without being put together from outside, to form a structure with a defined shape
- Reversible reaction
- A reaction in which the products can also proceed in the opposite direction and return to the starting materials
- Flux
- A quantity that represents how fast a reaction proceeds and how much matter is flowing
ResearchResearch themes
Research begins with the question "What if the order of nature is fundamentally a temporal phenomenon?" Starting from the view that organization arises in time, the lab studies the behavior of networks of connected reactions.
*Illustrative imageOrganization in Time
The true nature of organization cannot be seen by looking at structure alone. The lab views organization as something that emerges when selection takes place in time.
*Illustrative imageFrom "What" to "When"
A fixed gate determines what can pass through. A fluctuating gate determines when something can pass through. The lab asks why the gate needs to move.
*Illustrative imageBeyond Reversibility
A system made up only of reversible reactions is not necessarily reversible as a whole. When reactions are connected, irreversible behavior can emerge.
*Illustrative imagePropagation of Flux
A local change does not necessarily stay local. Through a network of reactions, changes in flux propagate.
MembersFaculty
The members of Hiraoka Lab are faculty, a secretary, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorShuichi HiraokaPublications ↗
- LecturerTsukasa Abe
- Assistant ProfessorThakun Chen
VoicesStudent voices
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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: “Hourglass with sand” John Morgan / CC BY 2.0 (cropped)
- Organization in Time: “ReactionNetwork” Nkchenjx / CC BY-SA 4.0 (cropped)
- From "What" to "When": “Ion channel” Original uploader was Outslider (Paweł Tokarz) at pl.wikipedia / Public domain (cropped)
- Beyond Reversibility: “ChemicalEquilibrium” Fintelia / CC BY-SA 3.0 (cropped)
- Propagation of Flux: “Braided river. Canterbury NZ. ( )” Bernard Spragg. NZ from Christchurch, New Zealand / CC0 (cropped)
- Related lab (Uchida Lab): “Alfa-Keggin” Quimiprof / CC BY-SA 4.0 (cropped)
- Related lab (Terao-Iwai Lab): “Cycloparaphenylene-3D-balls” Jynto (talk) / CC0 (cropped)
- Related lab (Toyota Lab): “Phosphatidylcholine liposomes at phase-contrast microscopy” ArkhipovSergey / CC BY-SA 4.0 (cropped)
- Related lab (Yokogawa Lab): “Separatory funnel with oil and colored water” PRHaney / CC BY-SA 3.0 (cropped)
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