Search Results - "Maekawa, Hiroaki"

Phase-Sensitive Vibrationally Resonant Sum-Frequency Generation Microscopy in Multiplex Configuration at 80 MHz Repetition Rate by Maekawa, Hiroaki, Kumar, S. K. Karthick, Mukherjee, Sudipta S., Ge, Nien-Hui

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Comparative Study of Electrostatic Models for the Amide-I and -II Modes: Linear and Two-Dimensional Infrared Spectra by Maekawa, Hiroaki, Ge, Nien-Hui

“…We have carried out a comparative study of five ab initio electrostatic frequency maps and a semiempirical model for the amide-I and -II modes. Unrestrained…”
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Linear and Two-Dimensional Infrared Spectroscopic Study of the Amide I and II Modes in Fully Extended Peptide Chains by Maekawa, Hiroaki, Ballano, Gema, Toniolo, Claudio, Ge, Nien-Hui

“…We have carried out structural determination of capped Cα,α-diethylglycine (Deg) homopeptides with different chain lengths, Ac-(Deg) n -OtBu (n = 2−5),…”
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Onset of 310-Helical Secondary Structure in Aib Oligopeptides Probed by Coherent 2D IR Spectroscopy by Maekawa, Hiroaki, Formaggio, Fernando, Toniolo, Claudio, Ge, Nien-Hui

“…We have investigated the onset of the secondary structure and the evolution of two-dimensional infrared (2D IR) spectral patterns as a function of chain length…”
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Sensitivity of 2D IR Spectra to Peptide Helicity: A Concerted Experimental and Simulation Study of an Octapeptide by Sengupta, Neelanjana, Maekawa, Hiroaki, Zhuang, Wei, Toniolo, Claudio, Mukamel, Shaul, Tobias, Douglas J, Ge, Nien-Hui

“…We have investigated the sensitivity of two-dimensional infrared (2D IR) spectroscopy to peptide helicity with an experimental and theoretical study of…”
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Toward Detecting the Formation of a Single Helical Turn by 2D IR Cross Peaks between the Amide-I and -II Modes by Maekawa, Hiroaki, Poli, Matteo De, Moretto, Alessandro, Toniolo, Claudio, Ge, Nien-Hui

“…We have combined two-dimensional infrared (2D IR) spectroscopy and isotope substitutions to reveal the vibrational couplings between a pair of amide-I and -II…”
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Development of ultra-high sensitivity bioluminescent enzyme immunoassay for hepatitis B virus surface antigen using firefly luciferase by Minekawa, Takayuki, Ohkuma, Hiroshi, Abe, Katsushi, Maekawa, Hiroaki, Arakawa, Hidetoshi

“…Hepatitis B virus (HBV) infection continues to be a global public health concern. Efficient diagnosis of HBV surface antigen (HBsAg) is useful for…”
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Development of Bioluminescent Enzyme Immunoassay for S-Equol Using Firefly Luciferase and Its Application to the Assessment of Equol-Producer Status by Minekawa, Takayuki, Kambegawa, Akira, Shindome, Kumiko, Ohkuma, Hiroshi, Abe, Katsushi, Maekawa, Hiroaki, Arakawa, Hidetoshi

“…In this study, we developed a specific bioluminescent enzyme immunoassay (BLEIA) for S-equol, employing firefly luciferase as a labeling enzyme, as an…”
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Probing the Spectral Diffusion of Vibrational Transitions of OCN- and SCN- in Methanol by Three-Pulse Infrared Photon Echo Spectroscopy by Ohta, Kaoru, Maekawa, Hiroaki, Saito, Shinji, Tominaga, Keisuke

“…Three-pulse infrared photon echo spectroscopy has been used to determine the correlation function of the fluctuations of the vibrational frequencies of OCN-…”
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Vibrational Population Relaxation of the −NCN− Antisymmetric Stretching Mode of Carbodiimide Studied by the Infrared Transient Grating Method by Maekawa, Hiroaki, Ohta, Kaoru, Tominaga, Keisuke

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Vibrational population relaxation and dephasing dynamics of Fe(CN) 64− in water: deuterium isotope effect of solvents by Ohta, Kaoru, Maekawa, Hiroaki, Tominaga, Keisuke

“…Femtosecond infrared transient grating and three pulse photon-echo experiments have been performed to investigate the vibrational dynamics of the CN stretching…”
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Vibrational dephasing of the –N C N– anti-symmetric stretching mode of carbodiimide studied by infrared photon echo method by Maekawa, Hiroaki, Ohta, Kaoru, Tominaga, Keisuke

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13C18O/15N Isotope Dependence of the Amide-I/II 2D IR Cross Peaks for the Fully Extended Peptides by Maekawa, Hiroaki, Ballano, Gema, Formaggio, Fernando, Toniolo, Claudio, Ge, Nien-Hui

“…We have used a combination of 2D IR spectroscopy with 13C18O labeled amide-I and 15N-labeled amide-II modes to reveal how vibrational coupling between labeled…”
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Investigation of Two-Dimensional Vibrational Spectrum by a Diagrammatic Approach by Tominaga, Keisuke, Maekawa, Hiroaki

“…We have theoretically investigated two-dimensional vibrational spectra for a two-mode system in terms of a diagrammatic approach. The two vibrational modes are…”
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Development of Bioluminescent Enzyme Immunoassay for S-Equol Using Firefly Luciferase and Its Application to the Assessment of Equol-Producer Status by Takayuki MINEKAWAa, b, Akira KAMBEGAWAc, Kumiko SHINDOMEa, Hiroshi OHKUMAa, Katsushi ABEa, Hiroaki MAEKAWAa, Hidetoshi ARAKAWAb

“…In this study, we developed a specific bioluminescent enzyme immunoassay (BLEIA) for S-equol, employing firefly luciferase as a labeling enzyme, as an…”
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Wavelength and Polarization Dependence of Second-Harmonic Responses from Gold Nanocrescent Arrays by Maekawa, Hiroaki, Drobnyh, Elena, Lancaster, Cady A, Large, Nicolas, Schatz, George C, Shumaker-Parry, Jennifer S, Sukharev, Maxim, Ge, Nien-Hui

“…In the developing field of nonlinear plasmonics, it is important to understand the fundamental relationship between properties of the localized surface plasmon…”
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Development of two-dimensional Raman spectroscopy by higher-order optical nonlinear spectroscopy by Tominaga, Keisuke, Maekawa, Hiroaki

“…Recent development of the optical two-dimensional spectroscopy is reviewed. This is an optical analogue of the two-dimensional magnetic resonance technique. We…”
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Couplings between peptide linkages across a 3(10)-helical hydrogen bond revealed by two-dimensional infrared spectroscopy by Maekawa, Hiroaki, De Poli, Matteo, Toniolo, Claudio, Ge, Nien-Hui

“…Vibrational couplings between the amide modes are keenly dependent on peptide structure. Site-specific couplings can inform us of molecular conformation in…”
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Pyrenocine A induces monopolar spindle formation and suppresses proliferation of cancer cells by Myobatake, Yusuke, Kamisuki, Shinji, Tsukuda, Senko, Higashi, Tsunehito, Chinen, Takumi, Takemoto, Kenji, Hachisuka, Masami, Suzuki, Yuka, Takei, Maya, Tsurukawa, Yukine, Maekawa, Hiroaki, Takeuchi, Toshifumi, Matsunaga, Tomoko M., Sahara, Hiroeki, Usui, Takeo, Matsunaga, Sachihiro, Sugawara, Fumio

“…[Display omitted] Pyrenocine A, a phytotoxin, was found to exhibit cytotoxicity against cancer cells with an IC50 value of 2.6–12.9 μM. Live cell imaging…”
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Picosecond Rotational Interconversion Adjacent to a CO Bond Studied by Two-Dimensional Infrared Spectroscopy by Maekawa, Hiroaki, Ge, Nien-Hui

“…Molecular conformations around the CO group of carbonyl compounds like ketones and aldehydes play an important role in determining their reaction properties…”
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