Toward million-fold sensitivity enhancement by sweeping in capillary electrophoresis combined with thermal lens microscopic detection using an interface chip
Fumihiko Kitagawa, Takashi Tsuneka, Yoshihiro Akimoto, Kenji Sueyoshi, Kenji Uchiyama, Akihiko Hattori, Koji Otsuka
J. Chromatogr. A 2006, 1106, 36-42.

One-step immobilization of cationic polymer onto a poly(methyl methacrylate) microchip for high-performance electrophoretic analysis of proteins
Fumihiko Kitagawa, Kei Kubota, Kenji Sueyoshi, Koji Otsuka
Sci. Technol. Adv. Mater. 2006, 7, 558-565.

Application of a partial filling technique to electrophoretic analysis on microchip with T-cross channel configuration
Kenji Sueyoshi, Hidenori Nagai, Shin-ichi Wakida, Junji Nishii, Fumihiko Kitagawa, Koji Otsuka
Meas. Sci. Technol. 2006, 17, 3154-3161.

On-line sample preconcentration and separation technique based on transient trapping in microchip micellar electrokinetic chromatography
Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
Anal. Chem. 2008, 80, 1255-1262.

Recent progress of online sample preconcentration techniques in microchip electrophoresis
Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
J. Sep. Sci. 2008, 31, 2650-2666.

High-performance microchip electrophoresis by using on-line sample preconcentration and partial filling techniques
Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
Bunseki Kagaku 2008, 57, 1001-1010.

Microchip electrophoresis of oligosaccharides using large-volume sample stacking with an electroosmotic flow pump in a single channel
Takayuki Kawai, Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
Anal. Chem. 2010, 82, 6504-6511.

One-step preparation of amino-PEG modified poly(methyl methacrylate) microchips for electrophoretic separation of biomolecules
Fumihiko Kitagawa, Kei Kubota, Kenji Sueyoshi, Koji Otsuka
J. Pharm. Biomed. Anal. 2010, 53, 1272-1277.

Hydrophobic labeling of amino acids: Transient trapping-capillary/microchip electrophoresis
Kenji Sueyoshi, Kota Hashiba, Takayuki Kawai, Fumihiko Kitagawa, Koji Otsuka
Electrophoresis 2011, 32, 1233-1240.

Highly sensitive oligosaccharide analysis in capillary electrophoresis using large-volume sample stacking with an electroosmotic flow pump
Takayuki Kawai, Masato Watanabe, Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
J. Chromatogr. A 2012, 1232, 52-58.

Recent progress of on-line sample preconcentration techniques in microchip electrophoresis
Fumihiko Kitagawa, Takayuki Kawai, Kenji Sueyoshi, Koji Otsuka
Anal. Sci. 2012, 28, 85-94.

Highly sensitive chiral analysis in capillary electrophoresis with large-volume sample stacking with an electroosmotic flow pump
Takayuki Kawai, Hiroshi Koino, Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
J. Chromatogr. A 2012, 1246, 28-34.

Electrophoretic analysis of cations using large-volume sample stacking with an electroosmotic flow pump using capillaries coated with neutral and cationic polymers
Takayuki Kawai, Jun Ito, Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
J. Chromatogr. A 2012, 1267, 65-73.

Sensitive enantioseparation by transient trapping-cyclodextrin electrokinetic chromatography
Kenji Sueyoshi, Hiroshi Koino, Fumihiko Kitagawa, Koji Otsuka
J. Chromatogr. A 2012, 1269, 366-371.

Synthesis of Poly(ethylene glycol)-Based Hydrogels and Their Swelling/Shrinking Response to Molecular Recognition
Yuichi Tominaga, Takuya Kubo, Kenji Sueyoshi, Ken Hosoya, Koji Otsuka
J. Polym. Sci. Part A: Polym. Chem. 2013, 51, 3153-3158.

Towards 10,000-fold Sensitivity Improvement of Oligosaccharides in Capillary Electrophoresis Using Large-volume Sample Stacking with an Electroosmotic Flow Pump Combined with Field-amplified Sample Injection
Takayuki Kawai, Masumi Ueda, Yudai Fukushima, Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
Electrophoresis 2013, 34, 2303-2310.

Effect of a Low-conductivity Zone on Field-amplified Sample Stacking in Microchip Micellar Electrokinetic Chromatography
Kenji Sueyoshi, Fumihiko Kitagawa, Koji Otsuka
Anal. Sci. 2013, 29, 133-138.

Open-tubular Electrochromatographic Chiral Separation of Amino Acids Using an Organic Nanocrystals Immobilized Capillary
Fumihiko Kitagawa, Hiroshi Sudaki, Kenji Sueyoshi, Koji Otsuka
Anal. Sci. 2013, 29, 107-112.

Zone electrophoresis of proteins in poly(dimethylsiloxane) (PDMS) microchip coated with physically adsorbed amphiphilic phospholipid polymer
Kyosuke Nii, Kenji Sueyoshi, Koji Otsuka, Madoka Takai
Microfluid. Nanofluid. 2013, 14, 951-959.

Inner surface modification of poly(dimethylsiloxane) microchannel with chitin for electrophoretic analysis of proteins
Kenji Sueyoshi, Yusuke Hori, Koji Otsuka
Microfluid. Nanofluid. 2013, 14, 933-941.

Novel Fluorescent Probe for Highly-Sensitive Bioassay using Sequential Enzyme-Linked Immunosorbent Assay - Capillary Isoelectric Focusing (ELISA-cIEF)
Terence Henares, Yuta Uenoyama, Yuto Nogawa, Ken Ikegami, Daniel Citterio, Koji Suzuki, Shun-ichi Funano, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
Analyst 2013, 138, 3139-3141.

Capillary-based enzyme-linked immunosorbent assay for highly sensitive detection of thrombin-cleaved osteopontin in plasma
Shun-ichi Funano, Terence Henares, Mie Kurata, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
Anal. Biochem. 2013, 440, 137-141.

Design of Single-Step Immunoassay Principle Based on the Combination of Enzyme-Labeled Antibody Release Coating and Hydrogel Copolymerized with Fluorescent Enzyme Substrate in a Microfluidic Capillary Device
Hideki Wakayama, Terence Henares, Kaede Jigawa, Shun-ichi Funano, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
Lab Chip 2013, 13, 4304-4307.

Development of a C₆₀-fullerene bonded open-tubular capillary using a photo/thermal active agent for liquid chromatographic separations by π-π interactions
Takuya Kubo, Yoshiki Murakami, Yuichi Tominaga, Toyohiro Naito, Kenji Sueyoshi, Mingdi Yan, Koji Otsuka
J. Chromatogr. A, 2014, 1323, 174-178.

Effective determination of a pharmaceutical, sulpiride, in river water by online SPE-LC-MS using a molecularly imprinted polymer as a preconcentration medium
Takuya Kubo, Kenta Kuroda, Yuichi Tominaga, Toyohiro Naito, Kenji Sueyoshi, Ken Hosoya, Koji Otsuka
J. Pharm. Biomed. Anal., 2014, 89, 111-117.

Advancements in Capillary-Assembled Microchip (CAs-CHIP) Development for Multiple Analyte Sensing and Microchip Electrophoresis
Terence Henares, Shun-ichi Funano, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
Anal. Sci., 2014, 30, 7-15. (Invited mini review)

Efficient Immobilization of Enzyme and Substrate for Single-Step Caspase-3 Inhibitor Assay Using Combinable PDMS Capillary Sensor Array
Tadashi Ishimoto, Kaede Jigawa, Terence Henares, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
RSC Adv., 2014, 4, 7682-7687.

Development of novel protease assay device using a nanoimprinted two dimensional photonic crystal
Wakana Hashimoto, Tatsuro Endo, Kenji Sueyoshi, Hideaki Hisamoto
Chem. Lett. 2014, 43, 1728-1730.

Plasticized poly(vinyl chloride)-based photonic crystal for ion sensing
Shoma Aki, Tatsuro Endo, Kenji Sueyoshi, Hideaki Hisamoto
Anal. Chem. 2014, 86, 11986-11991.

A single-step enzyme immunoassay capillary sensor composed of functional multilayer coatings for diagnosis marker proteins
Shun-ichi Funano, Masato Sugahara, Terence Henares, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
Analyst 2015, 140, 1459-1465.

Simple and Effective Label-Free Capillary Electrophoretic Analysis of Sugars by Complexation Using Quinoline Boronic Acids
Takuya Kubo, Koichi Kanemori, Risa Kusumoto, Takayuki Kawai, Kenji Sueyoshi, Toyohiro Naito, Koji Otsuka
Anal. Chem. 2015, 87, 5068-5073.

Fabrication and packaging of a mass-producible capillary-assembled microchip for simple and multiplexed bioassay
Terence Henares, Akihiro Shirai, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
Sens. Actuators B 2015, 218, 245-252.

Highly Sensitive and Multiple Enzyme Activity Assay Using Reagent-release Capillary-Isoelectric Focusing with Rhodamine 110-based Substrates
Kenji Sueyoshi, Yuto Nogawa, Kasumi Sugawara, Tatsuro Endo, Hideaki Hisamoto
Anal. Sci. 2015, 31, 1155-1161.

Simple and Rapid Immobilization of Coating Polymers on Poly(dimethyl siloxane)-glass Hybrid Microchips by a Vacuum-drying Method
Fumihiko Kitagawa, Syo Nakagawara, Isoshi Nukatsuka, Yusuke Hori, Kenji Sueyoshi, Koji Otsuka
Anal. Sci. 2015, 31, 1171-1175.