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Spectroscopic Physical Chemistry Lab
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A lab that uses spectroscopy to explore the structure and motion of molecules at interfaces and in solution.
AboutAbout the lab
Observing molecules at interfaces and in solution through spectroscopy.
The Spectroscopic Physical Chemistry (Ishibashi) Lab uses a variety of molecular spectroscopy methods to study the structure, orientation, and motion of molecules at interfaces and in solution.
Using vibrational sum-frequency generation (SFG) spectroscopy and total internal reflection Raman spectroscopy, the lab investigates the structure of molecules at interfaces and the interactions between them.
Using time-resolved infrared spectroscopy and the transient grating method, the lab studies photochemical reactions in solution.
The lab also works on constructing mesoscopic organized assemblies and studying their optical functions and photophysicochemical properties.
Key terms
- Vibrational sum-frequency generation (SFG) spectroscopy
- An interface-sensitive spectroscopic method that captures the structure and orientation of molecules at an interface and the interactions between them
- Time-resolved infrared spectroscopy
- A method that uses changes in the vibrational spectrum after photoexcitation to examine the bonding state and kinetics of short-lived chemical species generated in a reaction
- Transient grating method
- A technique that captures the motion of molecules in solution (diffusion coefficients)
- Lipid bilayer
- A membrane that can be prepared at a solid-liquid interface. It is considered a closer model of biological membranes than a monolayer at an air-liquid interface
NewsLab news
Paper by Associate Professor Momotake and colleagues published in ChemBioChem
Paper by Professor Ishibashi and colleagues published in CHEMICAL PHYSICS
Paper by Associate Professor Momotake and colleagues published in DYES AND PIGMENTS
Paper by Professor Ishibashi and colleagues published in The Journal of Physical Chemistry B
Paper on the bonding character of diradicals published in the J. Phys. Org. Chem.
ResearchResearch themes
This lab uses spectroscopy to study the structure, orientation, and motion of molecules at interfaces and in solution. Mainly using laser spectroscopy, it investigates the interactions between molecules at interfaces and the short-lived chemical species generated in photochemical reactions in solution.
*Illustrative imageDetecting the chirality of molecules at interfaces
The lab studies chiral vibrational SFG spectroscopy with heterodyne detection, which can distinguish and detect the R and S enantiomers by the sign of the signal, starting from instrument development. Targets include protein monolayers at the air-water interface.
*Illustrative imageMolecular structure at air-liquid interfaces
The lab investigates the structure and orientation of molecules in lipid and surfactant monolayers formed at air-liquid interfaces. It also studies how molecules in an aqueous solution are recognized by molecules at the interface to form supramolecular structures.
*Illustrative imageMolecular structure at solid-liquid interfaces
Lipid bilayers formed at solid-liquid interfaces are considered a closer model of biological membranes. To study their interactions with peptides and proteins, the lab works from the very start, building its own instruments and experimental methods.
*Illustrative imageInteractions between lipid membranes and peptides
The lab studies the interaction between lipid bilayers at solid-liquid interfaces and antimicrobial peptides using interface-sensitive Raman spectroscopy in a total internal reflection geometry. It has also worked on building an instrument and a method to accurately measure the difference spectra before and after adding the peptide.
MembersFaculty
The members of the Spectroscopic Physical Chemistry (Ishibashi) Lab are faculty, graduate students, and undergraduate students.As of 2024
- ProfessorTakaaki Ishibashi
- Associate ProfessorTomoo Sato
- Associate ProfessorAtsuya Momotake
- Assistant ProfessorMasato Kondo
- Assistant ProfessorKeisei Shibata
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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: “Silver Target in XPS Spectrometer” MichaelBueker / CC BY-SA 3.0 (cropped)
- Detecting the chirality of molecules at interfaces: “Laser lab ( )” Maximilian Paradiz from Amsterdam, Netherlands / CC BY 2.0 (cropped)
- Molecular structure at air-liquid interfaces: “Water droplet lying on a damask” Petar Milošević / CC BY-SA 4.0 (cropped)
- Molecular structure at solid-liquid interfaces: “Cell membrane detailed diagram nl2” LadyofHats, translated by Rasbak / Public domain (cropped)
- Interactions between lipid membranes and peptides: “Raman Spectroscopy device by Bruker” Ijon / CC BY-SA 4.0 (cropped)
- Related lab (生物有機化学): “Separatory funnel” 作者不詳 / Public domain (cropped)
- Related lab (分析化学): “Lasers; Optics ( )” National Institute of Standards and Technology / Public domain (cropped)
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- Related lab (無機反応化学): “Winkler Titration Prior Titration” Original uploader was Willwood at en.wikipedia / CC BY-SA 3.0 (cropped)
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