[62] Kousuke Kashihara, Muneki Oouchi, Yu Kodama, Tatsuhiro Arai, Miki Horie, Takehiro Kitaura, and Yoshitaka Ishii
High-field nuclear magnetic resonance studies reveal new structural landscape of sulfur-vulcanized natural rubber
Biomacromolecules, 23, 4481-4492 (2022).
理研プレスリリース「加硫天然ゴム中の未知構造が明らかに －ゴム製品の高性能化やリサイクル法開発への応用に期待－」


[61] Tatsuya Matsunaga, Ryotaro Okabe, and Yoshitaka Ishii
Efficient solvent suppression with adiabatic inversion for ¹H-detected solid-state NMR
J. Biomol. NMR, 75, 365-370 (2021).


[60] Yoshinori Yanagisawa, Renzhong Piao, Yu Suetomi, Toshio Yamazaki, Kazama Yamagishi, Takeshi Ueno, Tomoaki Takao, Kohtaro Ohki, Takashi Yamaguchi, Tatsuoki Nagaishi, Hitoshi Kitaguchi, Yasuyuki Miyoshi, Masatoshi Yoshikawa, Mamoru Hamada, Kazuyoshi Saito, Kenichi Hachitani, Yoshitaka Ishii, and Hideaki Maeda
Development of a persistent-mode NMR magnet with superconducting joints between high-temperature superconductors
Supercond. Sci. Technol., 34, 115006 (2021). (Open Access)
理研プレスリリース 「電気抵抗のない高温超電導接合で２年間の永久電流運転に世界で初めて成功」


[59] Ayesha Wickramasinghe, Yiling Xiao, Naohiro Kobayashi, Songlin Wang, Kathryn P. Scherpelz, Toshio Yamazaki, Stephen C. Meredith, and Yoshitaka Ishii
Sensitivity-enhanced solid-state NMR detection of structural differences and unique polymorphs in pico- to nanomolar amounts of brain-derived and synthetic 42-residue amyloid-β fibrils
J. Am. Chem. Soc., 143, 11462-11472 (2021).
東工大ニュース 「アルツハイマー病のタンパク質凝集体の構造の違いに迫る －微量試料計測で凝集タンパク質の分子構造の違いを同定可能に－」
日本経済新聞 「東工大と理研、微量試料計測で凝集タンパク質の分子構造の違いを同定可能に」


[58] Kathryn P. Scherpelz, Songlin Wang, Peter Pytel, Rama S. Madhurapantula, Atul K. Srivastava, Joseph R. Sachleben, Joseph Orgel, Yoshitaka Ishii, and Stephen C. Meredith
Atomic-level differences between brain parenchymal- and cerebrovascular-seeded Aβ fibrils
Sci. Rep., 11, 247 (2021). (Open Access)


[57] Tatsuya Matsunaga, Isamu Matsuda, Toshio Yamazaki, and Yoshitaka Ishii
Decoherence optimized tilted-angle cross polarization: a novel concept for sensitivity-enhanced solid-state NMR using ultra-fast magic angle spinning
J. Magn. Reson., 322, 106857 (2021).


[56] Takako Ohyama, Hazuki Takahashi, Harshita Sharma, Toshio Yamazaki, Stefano Gustincich, Yoshitaka Ishii, and Piero Carninci
An NMR-based approach reveals the core structure of the functional domain of SINEUP lncRNAs
Nucleic Acids Res., 48, 9346–9360 (2020). (Open Access)
理研プレスリリース 「タンパク質を増やす秘訣に迫る －翻訳を促進するノンコーディングRNAの2次構造を決定－」


[55] Yiling Xiao, Isamu Matsuda, Masafumi Inoue, Tomoya Sasahara, Minako Hoshi, and Yoshitaka Ishii
NMR-based site-resolved profiling of β-amyloid misfolding reveals structural transitions from pathologically relevant spherical oligomer to fibril
J. Biol. Chem., 295, 458–467 (2020). (Open Access)

[54] Hideaki Maeda, Jun-ichi Shimoyama, Yoshinori Yanagisawa, Yoshitaka Ishii, and Masaru Tomita
The MIRAI Program and the new super-high field NMR initiative and its relevance to the development of superconducting joints in Japan
IEEE Trans. Appl. Supercond., 29, 1–9 (2019).


[53] Muneki Oouchi, Jinta Ukawa, Yoshitaka Ishii, and Hideaki Maeda
Structural analysis of the terminal groups in commercial Hevea natural rubber by 2D-NMR with DOSY filters and multiple-WET methods using ultrahigh-field NMR
Biomacromolecules, 20, 1394-1400 (2019).
理研プレスリリース 「新NMR測定法による天然ゴム末端基の解析 －次世代人工ゴムの高分子合成の研究の加速に期待－」

[52] Brian K. Yoo, Yiling Xiao, Dan McElheny, and Yoshitaka Ishii
E22G pathogenic mutation of β-amyloid (Aβ) enhances misfolding of Aβ40 by unexpected prion-like cross talk between Aβ42 and Aβ40
J. Am. Chem. Soc., 140, 2781-2784 (2018). (Author Manuscript available from PMC)


[51] Yoshitaka Ishii, Ayesha Wickramasinghe, Isamu Matsuda, Yuki Endo, Yuji Ishii, Yusuke Nishiyama, Takahiro Nemoto, and Takayuki Kamihara
Progress in proton-detected solid-state NMR (SSNMR): Super-fast 2D SSNMR collection for nano-mole-scale proteins
J. Magn. Reson., 286, 99-109 (2018).
One of the five most downloaded articles in JMR in 2018!

[50] Thomas J. Nacken, Christian E. Halbig, Simon E. Wawra, Cornelia Damm, Stefan Romeis, Johannes Walter, Mohammad J. Tehrani, Yichen Hu, Yoshitaka Ishii, Siegfried Eigler, and Wolfgang Peukert
Structural factors controlling size reduction of graphene oxide in liquid processing
Carbon, 125, 360-369 (2017). (Open Manuscript available from the publisher website)


[49] Yichen Hu, Yeonjun Shim, Junghoon Oh, Sunghee Park, Sungjin Park, and Yoshitaka Ishii
Synthesis of ¹³C-, ¹⁵N-labeled graphitic carbon nitrides and NMR-based evidence of hydrogen-bonding assisted two-dimensional assembly
Chem. Mater., 29, 5080-5089 (2017).

[48] Songlin Wang, Isamu Matsuda, Fei Long, and Yoshitaka Ishii
Spectral editing at ultra-fast magic-angle-spinning in solid-state NMR: facilitating protein sequential signal assignment by HIGHLIGHT approach
J. Biomol. NMR, 64, 131-141 (2016). (Full-text PDF available from Songlin's ReasearchGate page)

[47] Ayesha Wickramasinghe, Songlin Wang, Isamu Matsuda, Yusuke Nishiyama, Takahiro Nemoto, Yuki Endo, and Yoshitaka Ishii
Evolution of CPMAS under fast magic-angle-spinning at 100 kHz and beyond
Solid State Nucl. Magn. Reson., 72, 9-16 (2015). (Open Manuscript available from the publisher website)


[46] Kui Shen, Benjamin Ramirez, Brandon Mapes, Grace R. Shen, Vijay Gokhale, Mary E. Brown, Bernard Santarsiero, Yoshitaka Ishii, Steven M. Dudek, Ting Wang, and Joe G. N. Garcia
Structure-function analysis of the non-muscle myosin light chain kinase (nmMLCK) isoform by NMR spectroscopy and molecular modeling: influence of MYLK variants
PLoS ONE, 10, e0130515 (2015). (Open Access)


[45] Yiling Xiao, Buyong Ma, Dan McElheny, Sudhakar Parthasarathy, Fei Long, Minako Hoshi, Ruth Nussinov, and Yoshitaka Ishii
Aβ (1-42) fibril structure illuminates self-recognition and replication of amyloid in Alzheimer’s disease
Nat. Struct. Mol. Biol., 22, 499-505 (2015). (Author Manuscript available from PMC)


[44] Sudhakar Parthasarathy, Masahumi Inoue, Yiling Xiao, Yoshitaka Matsumura, Yo-ichi Nabeshima, Minako Hoshi, and Yoshitaka Ishii
Structural insight into an Alzheimer’s brain-derived spherical assembly of amyloid β by solid-state NMR
J. Am. Chem. Soc., 137, 6480-6483 (2015). (Open Access)


[43] Songlin Wang, Sudhakar Parthasarathy, Yusuke Nishiyama, Yuki Endo, Takahiro Nemoto, Kazuo Yamauchi, Tetsuo Asakura, Mitsuhiro Takeda, Tsutomu Terauchi, Masatsune Kainosho, and Yoshitaka Ishii
Nano-mole scale side-chain signal assignment by ¹H-detected protein solid-state NMR by ultra-fast magic-angle spinning and stereo-array isotope labeling
PLoS ONE, 10, e0122714 (2015). (Open Access)


[42] Songlin Wang, Sudhakar Parthasarathy, Yiling Xiao, Yusuke Nishiyama, Fei Long, Isamu Matsuda, Yuki Endo, Takahiro Nemoto, Kazuo Yamauchi, Tetsuo Asakura, Mitsuhiro Takeda, Tsutomu Terauchi, Masatsune Kainosho, and Yoshitaka Ishii
Nano-mole scale sequential signal assignment by ¹H-detected protein solid-state NMR
Chem. Commun., 51, 15055-15058 (2015). (Author Version available from the publisher website)


[41] Zhenxing Wang, Siegfried Eigler, Yoshitaka Ishii, Yichen Hu, Christian Papp, Ole Lytken, Hans-Peter Steinrück, and Marcus Halik
A facile approach to synthesize an oxo-functionalized graphene/polymer composite for low-voltage operating memory devices
J. Mater. Chem. C, 3, 8595-8604 (2015). (Open Access)

[40] Yang Wen, Kai He, Yujie Zhu, Fudong Han, Yunhua Xu, Isamu Matsuda, Yoshitaka Ishii, John Cumings, and Chunsheng Wang
Expanded graphite as superior anode for sodium-ion batteries
Nat. Commun., 5, 4033 (2014).


[39] Sudhakar Parthasarathy, Brian Yoo, Dan McElheny, William Tay, and Yoshitaka Ishii
Capturing a reactive state of amyloid aggregates: NMR-based characterization of copper-bound Alzheimer disease amyloid β-fibrils in a redox cycle
J. Biol. Chem., 14, 9998-10010 (2014). (Open Access)

[38] Sudhakar Parthasarathy, Yusuke Nishiyama, and Yoshitaka Ishii
Sensitivity and resolution enhanced solid-state NMR for paramagnetic systems and biomolecules under very fast magic angle spinning
Acc. Chem. Res., 46, 2127-2135 (2013). (Author Manuscript available from PMC)


[37] Siegfried Eigler, Yichen Hu, Yoshitaka Ishii, and Andreas Hirsch
Controlled functionalization of graphene oxide with sodium azide
Nanoscale, 5, 12136-12139 (2013). (Open Access)

[36] Songlin Wang and Yoshitaka Ishii
Revealing protein structures in solid-phase peptide synthesis by ¹³C solid-state NMR: evidence of excessive misfolding for Alzheimer’s β
J. Am. Chem. Soc., 134, 2848-2851 (2012). (Author Manuscript available from PMC)


[35] Sungjin Park, Yichen Hu, Jin Ok Hwang, Eui-Sup Lee, Leah B. Casabianca, Weiwei Cai, Jeffrey R. Potts, Hyung-Wook Ha, Shanshan Chen, Junghoon Oh, Sang Ouk Kim, Yong-Hyun Kim, Yoshitaka Ishii, and Rodney S. Ruoff
Chemical structures of hydrazine-treated graphene oxide and generation of aromatic nitrogen doping
Nat. Commun., 3, 638 (2012).

[34] Fei Long, Wonhwa Cho, and Yoshitaka Ishii
Expression and purification of ¹⁵N- and ¹³C-isotope labeled 40-residue human Alzheimer’s β-amyloid peptide for NMR-based structural analysis
Protein Expr. Purif., 79, 16-24 (2011).


[33] Sudhakar Parthasarathy, Fei Long, Yifat Miller, Yiling Xiao, Dan McElheny, Kent Thurber, Buyong Ma, Ruth Nussinov, and Yoshitaka Ishii
Molecular-level examination of Cu²⁺ binding structure for amyloid fibrils of 40-residue Alzheimer’s β by solid-state NMR spectroscopy
J. Am. Chem. Soc., 133, 3390-3400 (2011). (Author Manuscript available from PMC)

[32] Leah B. Casabianca, Medhat A. Shaibat, Weiwei W. Cai, Sungjin Park, Richard Piner, Rodney S. Ruoff, and Yoshitaka Ishii
NMR-based structural modeling of graphite oxide using multidimensional ¹³C solid-state NMR and ab initio chemical shift calculations
J. Am. Chem. Soc., 132, 5672-5676 (2010).


[31] Medhat A. Shaibat, Leah B. Casabianca, Diana Y. Siberio-Pérez, Adam J. Matzger, and Yoshitaka Ishii
Distinguishing polymorphs of the semiconducting pigment copper phthalocyanine by solid-state NMR and Raman spectroscopy
J. Phys. Chem. B, 114, 4400-4406 (2010).

[30] Nalinda P Wickramasinghe, Sudhakar Parthasarathy, Christopher R. Jones, Chhavi Bhardwaj, Fei Long, Mrignayani Kotecha, Shahila Mehboob, Leslie W-M Fung, Jaan Past, Ago Samoson, and Yoshitaka Ishii
Nanomole-scale protein solid-state NMR by breaking intrinsic ¹H T₁ boundaries
Nat. Methods, 6, 215-218 (2009). (Author Manuscript available from PMC)

[29] Weiwei Cai, Richard D. Piner, Frank J. Stadermann, Sungjin Park, Medhat A. Shaibat, Yoshitaka Ishii, Dongxing Yang, Aruna Velamakanni, Sung Jin An, Meryl Stoller, Jinho An, Dongmin Chen, and Rodney S. Ruoff
Synthesis and solid-state NMR structural characterization of ¹³C-labeled graphite oxide
Science 321, 1815-1817 (2008).


[28] Nalinda P. Wickramasinghe, Medhat A. Shaibat, Christopher R. Jones, Leah B. Casabianca, Angel C. de Dios, John S. Harwood, and Yoshitaka Ishii
Progress in ¹³C and ¹H solid-state nuclear magnetic resonance for paramagnetic systems under very fast magic angle spinning
J. Chem. Phys., 128, 052210 (2008).

[27] Mrignayani Kotecha, Nalinda P. Wickramasinghe, and Yoshitaka Ishii
Efficient low-power heteronuclear decoupling in ¹³C high-resolution solid-state NMR under fast magic angle spinning
Magn. Reson. Chem., 45, S221-S230 (2007).


[26] Sandra Chimon, Medhat A Shaibat, Christopher R. Jones, Diana C. Calero, Buzulagu Aizezi, and Yoshitaka Ishii
Evidence of fibril-like β-sheet structures in a neurotoxic amyloid intermediate of Alzheimer’s β-amyloid
Nat. Struct. Mol. Biol., 14, 1157-1164 (2007).


[25] Medhat A. Shaibat, Leah B. Casabianca, Nalinda P. Wickramasinghe, Stephen Guggenheim, Angel C. de Dios, and Yoshitaka Ishii
Characterization of polymorphs and solid-state reactions for paramagnetic systems by ¹³C solid-state NMR and ab initio calculations
J. Am. Chem. Soc., 129, 10968-10969 (2007).


[24] Nalinda P. Wickramasinghe, Medhat A. Shaibat, and Yoshitaka Ishii
Elucidating connectivity and metal-binding structures of unlabeled paramagnetic complexes by ¹³C and ¹H solid-state NMR under fast magic angle spinning
J. Phys. Chem. B, 111, 9693-9696 (2007).


[23] Xinqi Chen, Zhi-Hui Xu, Xiaodong Li, Medhat A. Shaibat, Yoshitaka Ishii, and Rodney S. Ruoff
Structural and mechanical characterization of platelet graphite nanofibers
Carbon, 45, 416-423 (2007).


[22] Nalinda P. Wickramasinghe, Mrignayani Kotecha, Ago Samoson, Jaan Past, and Yoshitaka Ishii
Sensitivity enhancement in ¹³C solid-state NMR of protein microcrystals by use of paramagnetic metal ions for optimizing ¹H T₁ relaxation
J. Magn. Reson., 184, 350-356 (2007).

[21] Nalinda P. Wickramasinghe and Yoshitaka Ishii
Sensitivity enhancement, assignment, and distance measurement in ¹³C solid-state NMR spectroscopy for paramagnetic systems under fast magic angle spinning
J. Magn. Reson., 181, 233-243 (2006).

[20] Sandra Chimon and Yoshitaka Ishii
Capturing intermediate structures of Alzheimer’s β-amyloid, Aβ(1-40), by solid-state NMR spectroscopy
J. Am. Chem. Soc., 127, 13472-13473 (2005).


[19] Nalinda P. Wickramasinghe, Medhat Shaibat, and Yoshitaka Ishii
Enhanced sensitivity and resolution in ¹H solid-state NMR spectroscopy of paramagnetic complexes under very fast magic angle spinning
J. Am. Chem. Soc., 127, 5796-5797 (2005).

[18] Robert Tycko and Yoshitaka Ishii
Constraints on supramolecular structure in amyloid fibrils from two-dimensional solid-state NMR spectroscopy with uniform isotopic labeling
J. Am. Chem. Soc., 125, 6606-6607 (2003).


[17] Yoshitaka Ishii, Nalinda P. Wickramasinghe, and Sandra Chimon
A new approach in 1D and 2D ¹³C high-resolution solid-state NMR spectroscopy of paramagnetic organometallic complexes by very fast magic-angle spinning
J. Am. Chem. Soc., 125, 3438-3439 (2003).

[16] Aneta T. Petkova, Yoshitaka Ishii, John J. Balbach, Oleg N. Antzutkin, Richard D. Leapman, Frank Delaglio, and Robert Tycko
A structural model for Alzheimer’s β-amyloid fibrils based on experimental constraints from solid state NMR
Proc. Nat. Acad. Sci. USA, 99, 16742-16747 (2002).

[15] Yoshitaka Ishii, Michelle A. Markus, and Robert Tycko
Controlling residual dipolar couplings in high-resolution NMR of proteins by strain induced alignment in a gel
J. Biomol. NMR, 21, 141-151 (2001).


[14] Yoshitaka Ishii, John J. Balbach, and Robert Tycko
Measurement of dipole-coupled lineshapes in a many-spin system by constant-time two-dimensional solid state NMR with high-speed magic-angle spinning
Chem. Phys., 266, 231-236 (2001).


[13] Yoshitaka Ishii
¹³C-¹³C dipolar recoupling under very fast magic angle spinning in solid-state nuclear magnetic resonance: Applications to distance measurements, spectral assignments, and high-throughput secondary-structure determination
J. Chem. Phys., 114, 8473-8483 (2001).


[12] Yoshitaka Ishii, James P. Yesinowski, and Robert Tycko
Sensitivity enhancement in solid-state ¹³C NMR of synthetic polymers and biopolymers by ¹H NMR detection with high-speed magic angle spinning
J. Am. Chem. Soc., 123, 2921-2922 (2001).

[11] John J. Balbach, Yoshitaka Ishii, Oleg N. Antzutkin, Richard D. Leapman, Nancy W. Rizzo, Fred Dyda, Jennifer Reed, and Robert Tycko
Amyloid fibril formation by Aβ_16-22, a seven-residue fragment of the Alzheimer’s β-amyloid peptide, and structural characterization by solid state NMR
Biochemistry, 39, 13748-13759 (2000).


[10] Robert Tycko, Francisco J. Blanco, and Yoshitaka Ishii
Alignment of biopolymers in strained gels: A new way to create detectable dipole-dipole couplings in high-resolution biomolecular NMR
J. Am. Chem. Soc., 122, 9340-9341 (2000).


[9] Yoshitaka Ishii and Robert Tycko
Multidimensional heteronuclear correlation spectroscopy of a uniformly ¹⁵N- and ¹³C-labeled peptide crystal: toward spectral resolution, assignment, and structure determination of oriented molecules in solid-state NMR
J. Am. Chem. Soc., 122, 1443-1455 (2000).


[8] Yoshitaka Ishii and Robert Tycko
Sensitivity enhancement in solid state ¹⁵N NMR by indirect detection with high-speed magic angle spinning
J. Magn. Reson., 142, 199-204 (2000).

[7] Yoshitaka Ishii and Takehiko Terao
Manipulation of nuclear spin Hamiltonians by rf-field modulations and its applications to observation of powder patterns under magic-angle spinning
J. Chem. Phys., 109, 1366-1374 (1998).


[6] Koichi Hirao, Yoshitaka Ishii, Takehiko Terao, Yasuhisa Kishimoto, Tatsuya Miyatake, Takao Ikariya, and Ryoji Noyori
Solid-state NMR study of poly(phenylacetylene) synthesized with a rhodium complex initiator
Macromolecules, 31, 3405-3408 (1998).


[5] Yoshitaka Ishii, Koichi Hirao, Takehiko Terao, Tsutomu Terauchi, Makoto Oba, Kozaburo Nishiyama, and Masatsune Kainosho
Determination of peptide φ angles in solids by relayed anisotropy correlation NMR
Solid State Nucl. Magn. Reson., 11, 169-175 (1998).

[4] Yoshitaka Ishii, Takehiko Terao, and Soichi Hayashi
Theory and simulation of vibrational effects on structural measurements by solid-state nuclear magnetic resonance
J. Chem. Phys., 107, 2760-2774 (1997).

[3] Yoshitaka Ishii, Takehiko Terao, and Masatsune Kainosho
Relayed anisotropy correlation NMR: determination of dihedral angles in solids
Chem. Phys. Lett., 256, 133-140 (1996).

[2] Yoshitaka Ishii, Jun Ashida, and Takehiko Terao
¹³C-¹H dipolar recoupling dynamics in ¹³C multiple-pulse solid-state NMR
Chem. Phys. Lett., 246, 439-445 (1995).


[1] Yoshitaka Ishii and Takehiko Terao
Determination of interheteronuclear distances by observation of the Pake-doublet patterns using the MLEV-8 sequences with composite pulses
J. Magn. Reson. A, 115, 116-118 (1995).

[33] Yoshitaka Ishii
Progress in sensitivity-enhanced protein solid-state NMR using ultra-fast MAS and revealing novel polymorphs for 42-residue amyloid β and other systems [口頭発表、英語]
ISMAR–APNMR–NMRSJ–SEST 2021, PS5-2 (2021/8/22–27, オンライン開催)

[32] Tatsuya Matsunaga, Ryotaro Okabe, and Yoshitaka Ishii
Theoretical explanation of new solvent suppression scheme with adiabatic pulse and application for solid-state NMR experiments [ポスター発表、英語]
ISMAR–APNMR–NMRSJ–SEST 2021, P1-3-11 (2021/8/22–27, オンライン開催)

[31] Hibiki Terami, Yoshiki Shigemitsu, Yuki Miyazaki, Toshio Yamazaki, Tatsuya Matsunaga, and Yoshitaka Ishii
Side-chain selective deuteration of proteins for solid-state NMR analysis [ポスター発表、英語]
ISMAR–APNMR–NMRSJ–SEST 2021, P1-3-13 (2021/8/22–27, オンライン開催)
発表者の寺見くん(M1)が「APNMR Poster Award」を受賞！

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