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1) Z. Han, S. Hishida, L.C. Chen. Formation of Alternating Surfactant-Enriched and Surfactant-Depleted Phases in the Taylor Cone of a Nanoelectrospray. Anal. Chem. 96: 7297–7303, 2024.
2) M. Futami, H. Naito, S. Ninomiya, L.C. Chen, T. Iwano, K. Yoshimura, Y. Ukita. Automated sample preparation for electrospray ionization mass spectrometry based on CLOCK-controlled autonomous centrifugal microfluidics. Biomed Microdevices. 26: 22, 2024.
3) D. Asakawa, K. Saikusa, H. Yoshida, Z. Han, L.C. Chen. Tuning the Internal Energy of Ions Produced by Atmospheric and High-Pressure Electrospray by Modulating the Gas Throughput into the First Vacuum Stage. Anal. Chem. 2024.
4) 亮輝小森, 理久鈴木, 忠保韓, リーチュインチェン. エミッタ内の電気化学反応を防ぐ両極性エレクトロスプレーエミッタの開発. Journal of the Mass Spectrometry Society of Japan. 71: 160–164, 2023.
5) N. Omata, T. Matsuda, Z. Han, L.C. Chen. Characteristics of high-pressure nanoESI-MS using standard and chromatographically packed (ZipTip) micropipette tips as emitters for highly conductive solutions. International Journal of Mass Spectrometry. 492: 117118, 2023.
6) S. Ninomiya, L.C. Chen, K. Hiraoka. Sputtering produced by vacuum electrospray droplet ions with different sizes and charges. Journal of Vacuum Science & Technology B. 41: 032807, 2023.
7) Z. Han, N. Omata, T. Matsuda, S. Hishida, S. Takiguchi, R. Komori, R. Suzuki, L.C. Chen. Tuning oxidative modification by a strong electric field using nanoESI of highly conductive solutions near the minimum flow rate. Chem. Sci. 14: 4506–4515, 2023.
8) Z. Han, N. Omata, L.C. Chen. Probing Acid-Induced Compaction of Denatured Proteins by High-Pressure Electrospray Mass Spectrometry. Anal. Chem. 95: 14816–14821, 2023.
9) Z. Han, R. Komori, R. Suzuki, N. Omata, T. Matsuda, S. Hishida, T. Shuuhei, L.C. Chen. Bipolar Electrospray from Electrodeless Emitters for ESI without Electrochemical Reactions in the Sprayer. J. Am. Soc. Mass Spectrom. 34: 728–736, 2023.
10) Z. Han, S. Hishida, N. Omata, T. Matsuda, R. Komori, L.C. Chen. Feedback Control of Electrospray with and without an External Liquid Pump Using the Spray Current and the Apex Angle of a Taylor Cone for ESI-MS. Anal. Chem. 95: 10744–10751, 2023.
11) Z. Han, L.C. Chen. High-pressure nanoESI of highly conductive volatile and non-volatile buffer solutions from a large Taylor cone: Effect of spray current on charge state distribution. International Journal of Mass Spectrometry. 476: 116845, 2022.
12) Z. Han, L.C. Chen. Generation of Ions from Aqueous Taylor Cones near the Minimum Flow Rate: “True Nanoelectrospray” without Narrow Capillary. J. Am. Soc. Mass Spectrom. 33: 491–498, 2022.
13) Z. Han, L.C. Chen. A Subtle Change in Nanoflow Rate Alters the Ionization Response As Revealed by Scanning Voltage ESI-MS. Anal. Chem. 94: 16015–16022, 2022.
14) 二宮啓, 川瀬幹大, チェンリーチュイン, 平岡賢三. Current Status of a Vacuum Electrospray Droplet Ion Beam and towards TOF-SIMS Applications. Journal of surface analysis. 27: 104–110, 2021.
15) リーチュインチェン, 啓二宮, 亮山垣. 第75回イオン反応研究会講演会兼平岡賢三特命教授・退官記念講演会開催報告. Journal of the Mass Spectrometry Society of Japan. 69: 202–205, 2021.
16) リーチュインチェン, 啓二宮. エレクトロスプレーを利用する質量分析技術. 表面技術. 72: 162–168, 2021.
17) Z. Han, L.C. Chen. Electrospray Ionization Inside the Ion Inlet Tube: Multijet Mode Operation. J. Am. Soc. Mass Spectrom. 32: 1821–1828, 2021.
18) L.C. Chen, T. Iwano, S. Ninomiya, T. Koike, Y. Tanaka, K. Yoshimura. Miniaturized String Sampling Probe and Electrospray Extraction/Ionization within the Ion Inlet Tube for Mass Spectrometric Endoscopy. J. Am. Soc. Mass Spectrom. 32: 606–610, 2021.
19) L.C. Chen. High-pressure ESI-MS made easy using a plug-and-play ion source and its application to highly conductive aqueous solutions. Journal of Mass Spectrometry. 56: e4583, 2021.
20) K. Hiraoka, O. Ariyada, D.T. Usmanov, L.C. Chen, S. Ninomiya, K. Yoshimura, S. Takeda, Z. Yu, M.K. Mandal, H. Wada, S. Rankin-Turner, H. Nonami. Probe Electrospray Ionization (PESI) and Its Modified Versions: Dipping PESI (dPESI), Sheath-Flow PESI (sfPESI) and Adjustable sfPESI (ad-sfPESI). Mass Spectrometry. 9: A0092–A0092, 2020.
21) L.C. Chen. A Plug-and-Play High-Pressure ESI Source with an Emitter at Ground Potential and Its Application to High-Temperature Capillary LC-MS. J. Am. Soc. Mass Spectrom. 31: 1015–1018, 2020.
22) K. Yoshimura, Y. Yamada, S. Ninomiya, W.Y. Chung, Y.-T. Chang, A.R. Dennison, K. Hiraoka, S. Takeda, L.C. Chen. Real-time analysis of living animals and rapid screening of human fluid samples using remote sampling electrospray ionization mass spectrometry. Journal of Pharmaceutical and Biomedical Analysis. 172: 372–378, 2019.
23) S. Ninomiya, S. Iwamoto, L.C. Chen, K. Hiraoka. Probe electrospray ionization of mixture solutions using metal needles with different tip conditions. Surface and Interface Analysis. 51: 100–104, 2019.
24) L.C. Chen. High-Temperature Liquid Chromatography and the Hyphenation with Mass Spectrometry Using High-Pressure Electrospray Ionization. Mass Spectrometry. 8: S0079–S0079, 2019.
25) 啓二宮, 諒渡邊, リーチュインチェン, 賢三平岡. 水溶液の真空エレクトロスプレーにより発生する帯電液滴の質量および価数. Vac. Surf. Sci. 61: 286–291, 2018.
26) 啓二宮, 悠一郎髙木, リーチュインチェン, 賢三平岡. 真空型エレクトロスプレー液滴イオン銃の開発と飛行時間型二次イオン質量分析への応用. Vac. Surf. Sci. 61: 440–445, 2018.
27) 亮山垣, リーチュインチェン, 啓二宮, 晃本山. 第69回イオン反応研究会講演会開催報告. J. Mass Spectrom. Soc. Jpn. 66: 97–100, 2018.
28) M.M. Rahman, L.C. Chen. Analytical characteristics of nano-electrospray operated under super-atmospheric pressure. Analytica Chimica Acta. 1021: 78–84, 2018.
29) S. Ninomiya, Y. Sakai, L.C. Chen, K. Hiraoka. Development of a Vacuum Electrospray Droplet Ion Gun for Secondary Ion Mass Spectrometry. Mass Spectrometry. 7: A0069–A0069, 2018.
30) S. Ninomiya, L.C. Chen, K. Hiraoka. Relative secondary ion yields produced by vacuum-type electrospray droplet ion beams. Journal of Vacuum Science & Technology B. 36: 03F134, 2018.
31) T. Chen, A. Kitada, Y. Seki, K. Fukami, D.T. Usmanov, L.C. Chen, K. Hiraoka, K. Murase. Identification of Copper(II)–Lactate Complexes in Cu2O Electrodeposition Baths: Deprotonation of the α-Hydroxyl Group in Highly Concentrated Alkaline Solution. J. Electrochem. Soc. 165: D444–D451, 2018.
32) L.C. Chen, S. Tsutsui, T. Naito, S. Ninomiya, K. Hiraoka. Electrospray ionization source with a rear extractor. Journal of Mass Spectrometry. 53: 400–407, 2018.
33) L.C. Chen, T. Naito, S. Ninomiya, K. Hiraoka. Hyphenation of high-temperature liquid chromatography with high-pressure electrospray ionization for subcritical water LC-ESI-MS. Analyst. 143: 5552–5558, 2018.
34) 啓二宮, 悠治境, リーチュインチェン, 賢三平岡. 真空エレクトロスプレーを用いるイオン銃の開発. Journal of the Vacuum Society of Japan. 60: 321–327, 2017.
35) Y. Yamada, S. Ninomiya, K. Hiraoka, L.C. Chen. Development of Remote Sampling ESI Mass Spectrometry for the Rapid and Automatic Analysis of Multiple Samples. Mass Spectrometry. 5: S0068–S0068, 2017.
36) D.T. Usmanov, S. Ninomiya, L.C. Chen, S. Saha, M.K. Mandal, Y. Sakai, R. Takaishi, A. Habib, K. Hiraoka, K. Yoshimura, S. Takeda, H. Wada, H. Nonami. Desorption in Mass Spectrometry. Mass Spectrometry. 6: S0059–S0059, 2017.
37) D.T. Usmanov, K. Hiraoka, S. Ninomiya, L.C. Chen, H. Wada, M. Matsumura, S. Sanada-Morimura, K. Nakata, H. Nonami. Pulsed probe electrospray and nano-electrospray: the temporal profiles of ion formation from the Taylor cone. Anal. Methods. 9: 4958–4963, 2017.
38) S. Ninomiya, K. Yoshimura, L.C. Chen, S. Takeda, K. Hiraoka. Secondary Ion Mass Spectrometry Analysis of Renal Cell Carcinoma with Electrospray Droplet Ion Beams. Mass Spectrom (Tokyo). 6: A0053, 2017.
39) L.C. Chen, K. Yoshimura, S. Ninomiya, S. Takeda, K. Hiraoka. Towards Practical Endoscopic Mass Spectrometry. Mass Spectrometry. 6: S0070–S0070, 2017.
40) L.C. Chen, T. Naito, S. Tsutsui, Y. Yamada, S. Ninomiya, K. Yoshimura, S. Takeda, K. Hiraoka. In vivo endoscopic mass spectrometry using a moving string sampling probe. Analyst. 142: 2735–2740, 2017.
41) D.T. Usmanov, Z. Yu, L.C. Chen, K. Hiraoka, S. Yamabe. Low-pressure barrier discharge ion source using air as a carrier gas and its application to the analysis of drugs and explosives. J. Mass Spectrom. 51: 132–140, 2016.
42) D.T. Usmanov, L.C. Chen, K. Hiraoka, H. Wada, H. Nonami, S. Yamabe. Nitrogen incorporation in saturated aliphatic C6–C8 hydrocarbons and ethanol in low-pressure nitrogen plasma generated by a hollow cathode discharge ion source. J. Mass Spectrom. 51: 446–452, 2016.
43) S. Ninomiya, Y. Sakai, R. Watanabe, M. Sogou, T. Miyayama, D. Sakai, K. Watanabe, L.C. Chen, K. Hiraoka. Secondary ion yields for vacuum-type electrospray droplet beams measured with a triple focus time-of-flight analyzer. Rapid Commun. Mass Spectrom. 30: 2279–2284, 2016.
44) S. Ninomiya, L.C. Chen, Y. Sakai, K. Hiraoka. Secondary ions produced by electrospray droplet impact with m/z selection from 103 to 106. Journal of Vacuum Science & Technology B. 34: 03H116, 2016.
45) L.C. Chen, S. Ninomiya, K. Hiraoka. Super-atmospheric pressure ionization mass spectrometry and its application to ultrafast online protein digestion analysis. J. Mass Spectrom. 51: 396–411, 2016.
46) K. Yoshimura, L.C. Chen, H. Johno, M. Nakajima, K. Hiraoka, S. Takeda. Development of Non-proximate Probe Electrospray Ionization for Real-Time Analysis of Living Animal. Mass Spectrom. 3: S0048–S0048, 2015.
47) D.T. Usmanov, S. Saha, L.C. Chen, S. Ninomiya, M.K. Mandal, K. Hiraoka. Probe Electrospray Ionization Mass Spectrometry with Discontinuous Atmospheric Pressure Interface. Eur J Mass Spectrom (Chichester). 21: 327–334, 2015.
48) D.T. Usmanov, L.C. Chen, Z. Yu, S. Yamabe, S. Sakaki, K. Hiraoka. Atmospheric pressure chemical ionization of explosives using alternating current corona discharge ion source. J. Mass Spectrom. 50: 651–661, 2015.
49) G. Petroselli, M.K. Mandal, L.C. Chen, K. Hiraoka, H. Nonami, R. Erra-Balsells. In situ analysis of soybeans and nuts by probe electrospray ionization mass spectrometry. J. Mass Spectrom. 50: 676–682, 2015.
50) A. Habib, L.C. Chen, D.T. Usmanov, Z. Yu, K. Hiraoka. Detection of explosives using a hollow cathode discharge ion source. Rapid Commun. Mass Spectrom. 29: 601–610, 2015.
51) L.C. Chen, M. Kinoshita, M. Noda, S. Ninomiya, K. Hiraoka. Rapid Online Non-Enzymatic Protein Digestion Analysis with High Pressure Superheated ESI-MS. J. Am. Soc. Mass Spectrom. 26: 1085–1091, 2015.
52) L.C. Chen. When API Mass Spectrometry Meets Super Atmospheric Pressure Ion Sources. Mass Spectrometry. 4: A0041–A0041, 2015.
53) Z. Yu, L.C. Chen, S. Ninomiya, M.K. Mandal, K. Hiraoka, H. Nonami. Piezoelectric inkjet assisted rapid electrospray ionization mass spectrometric analysis of metabolites in plant single cells via a direct sampling probe. Analyst. 139: 5734–5739, 2014.
54) S. Ninomiya, Y. Sakai, L.C. Chen, K. Hiraoka. Characteristics of Charged Droplet Beams Produced from Vacuum Electrospray. Journal of surface analysis. 20: 171–176, 2014.
55) S. Ninomiya, L.C. Chen, Y. Sakai, K. Hiraoka. Evaluation of a diode laser-assisted vacuum-type charged droplet beam source. Surf. Interface Anal. 46: 364–367, 2014.
56) A. Habib, S. Ninomiya, L.C. Chen, D.T. Usmanov, K. Hiraoka. Desorption Mass Spectrometry for Nonvolatile Compounds Using an Ultrasonic Cutter. J. Am. Soc. Mass Spectrom. 25: 1177–1180, 2014.
57) L.C. Chen, Md.M. Rahman, K. Hiraoka. High Pressure Super-Heated Electrospray Ionization Mass Spectrometry for Sub-Critical Aqueous Solution. J. Am. Soc. Mass Spectrom. 25: 1862–1869, 2014.
58) L.C. Chen, M.M. Rahman, K. Hiraoka. Super-Atmospheric Pressure Ion Sources: Application and Coupling to API Mass Spectrometer. Mass Spectrom. 3: S0024–S0024, 2014.
59) Z. Yu, L.C. Chen, M.K. Mandal, K. Yoshimura, S. Takeda, K. Hiraoka. Direct Electrospray Ionization Mass Spectrometric Profiling of Real-World Samples via a Solid Sampling Probe. J. Am. Soc. Mass Spectrom. 24: 1612–1615, 2013.
60) K. Yoshimura, M.K. Mandal, M. Hara, H. Fujii, L.C. Chen, K. Tanabe, K. Hiraoka, S. Takeda. Real-time diagnosis of chemically induced hepatocellular carcinoma using a novel mass spectrometry-based technique. Analytical Biochemistry. 441: 32–37, 2013.
61) D. Usmanov, L.C. Chen, S. Ninomiya, K. Hiraoka. Threshold behaviour of ion formation for noble metals (Au, Ag, Cu, Pt) irradiated by 4 ns 532 nm laser. International Journal of Mass Spectrometry. 341–342: 45–51, 2013.
62) S. Saha, M.K. Mandal, L.C. Chen, S. Ninomiya, Y. Shida, K. Hiraoka. Trace Level Detection of Explosives in Solution Using Leidenfrost Phenomenon Assisted Thermal Desorption Ambient Mass Spectrometry. Mass Spectrometry. 2: S0008–S0008, 2013.
63) S. Saha, L.C. Chen, M.K. Mandal, K. Hiraoka. Leidenfrost Phenomenon-assisted Thermal Desorption (LPTD) and Its Application to Open Ion Sources at Atmospheric Pressure Mass Spectrometry. J. Am. Soc. Mass Spectrom. 24: 341–347, 2013.
64) Md.O. Rahman, M.K. Mandal, Y. Shida, S. Ninomiya, L.C. Chen, H. Nonami, K. Hiraoka. Development of sheath-flow probe electrospray ionization (SF-PESI). J. Mass Spectrom. 48: 823–829, 2013.
65) Md.M. Rahman, L.C. Chen, K. Hiraoka. Development of high-pressure probe electrospray ionization for aqueous solution. Rapid Commun. Mass Spectrom. 27: 68–74, 2013.
66) M.M. Rahman, M.K. Mandal, K. Hiraoka, L.C. Chen. High pressure nanoelectrospray ionization mass spectrometry for analysis of aqueous solutions. Analyst. 138: 6316–6322, 2013.
67) M.M. Rahman, K. Hiraoka, L.C. Chen. Realizing nano electrospray ionization using disposable pipette tips under super atmospheric pressure. Analyst. 139: 610–617, 2013.
68) S. Ninomiya, L.C. Chen, Y. Sakai, H. Suzuki, K. Hiraoka. Development of a high-performance electrospray droplet beam source. Surface and Interface Analysis. 45: 126–130, 2013.
69) A. Habib, D. Usmanov, S. Ninomiya, L.C. Chen, K. Hiraoka. Alternating current corona discharge/atmospheric pressure chemical ionization for mass spectrometry. Rapid Commun. Mass Spectrom. 27: 2760–2766, 2013.
70) L.C. Chen, M.M. Rahman, K. Hiraoka. Super-atmospheric pressure chemical ionization mass spectrometry. J. Mass Spectrom. 48: 392–398, 2013.
71) L.C. Chen, H. Hori, K. Hiraoka. Laser Desorption and Ionization Mass Spectrometry Using PlasmonicSubstrates. in Handbook of Nano-Optics and Nanophotonics, (Eds: M. Ohtsu), Springer Berlin Heidelberg, 2013, pp. 1017–1055.
72) Z. Yu, L.C. Chen, M.K. Mandal, H. Nonami, R. Erra-Balsells, K. Hiraoka. Online Electrospray Ionization Mass Spectrometric Monitoring of Protease-Catalyzed Reactions in Real Time. J. Am. Soc. Mass Spectrom. 23: 728–735, 2012.
73) K. Yoshimura, L.C. Chen, M.K. Mandal, T. Nakazawa, Z. Yu, T. Uchiyama, H. Hori, K. Tanabe, T. Kubota, H. Fujii, R. Katoh, K. Hiraoka, S. Takeda. Analysis of Renal Cell Carcinoma as a First Step for Developing Mass Spectrometry-Based Diagnostics. J. Am. Soc. Mass Spectrom. 23: 1741–1749, 2012.
74) G. Petroselli, M.K. Mandal, L.C. Chen, G.T. Ruiz, E. Wolcan, K. Hiraoka, H. Nonami, R. Erra-Balsells. Mass spectrometry of rhenium complexes: a comparative study by using LDI-MS, MALDI-MS, PESI-MS and ESI-MS. J. Mass Spectrom. 47: 313–321, 2012.
75) S. Ninomiya, L.C. Chen, H. Suzuki, Y. Sakai, K. Hiraoka. Vacuum electrospray of volatile liquids assisted by infrared laser irradiation. Rapid Commun. Mass Spectrom. 26: 863–869, 2012.
76) M.K. Mandal, K. Yoshimura, S. Saha, S. Ninomiya, M.O. Rahman, Z. Yu, L.C. Chen, Y. Shida, S. Takeda, H. Nonami, K. Hiraoka. Solid probe assisted nanoelectrospray ionization mass spectrometry for biological tissue diagnostics. Analyst. 137: 4658–4661, 2012.
77) M.K. Mandal, K. Yoshimura, L.C. Chen, Z. Yu, T. Nakazawa, R. Katoh, H. Fujii, S. Takeda, H. Nonami, K. Hiraoka. Application of Probe Electrospray Ionization Mass Spectrometry (PESI-MS) to Clinical Diagnosis: Solvent Effect on Lipid Analysis. J. Am. Soc. Mass Spectrom. 23: 2043–2047, 2012.
78) L.C. Chen, M.M. Rahman, K. Hiraoka. Non-vacuum field desorption ion source implemented under super-atmospheric pressure. J. Mass Spectrom. 47: 1083–1089, 2012.
79) K. Yoshimura, L.C. Chen, Z. Yu, K. Hiraoka, S. Takeda. Real-time analysis of living animals by electrospray ionization mass spectrometry. Anal. Biochem. 417: 195–201, 2011.
80) M.K. Mandal, L.C. Chen, Z. Yu, H. Nonami, R. Erra‐Balsells, K. Hiraoka. Detection of protein from detergent solutions by probe electrospray ionization mass spectrometry (PESI‐MS). J. Mass Spectrom. 46: 967–975, 2011.
81) M.K. Mandal, L.C. Chen, K. Hiraoka. Sequential and Exhaustive Ionization of Analytes with Different Surface Activity by Probe Electrospray Ionization. J. Am. Soc. Mass Spectrom. 22: 1493–1500, 2011.
82) K. Hiraoka, S. Ninomiya, L.C. Chen, T. Iwama, M.K. Mandal, H. Suzuki, O. Ariyada, H. Furuya, K. Takekawa. Development of double cylindrical dielectric barrier discharge ion source. Analyst. 136: 1210–1215, 2011.
83) L.C. Chen, M.K. Mandal, K. Hiraoka. Super-Atmospheric Pressure Electrospray Ion Source: Applied to Aqueous Solution. J. Am. Soc. Mass Spectrom. 22: 2108–2114, 2011.
84) L.C. Chen, M.K. Mandal, K. Hiraoka. High Pressure (>1 atm) Electrospray Ionization Mass Spectrometry. J. Am. Soc. Mass Spectrom. 22: 539–544, 2011.
85) Z. Yu, L.C. Chen, R. Erra-Balsells, H. Nonami, K. Hiraoka. Real-time reaction monitoring by probe electrospray ionization mass spectrometry. Rapid Commun. Mass Spectrom. 24: 1507–1513, 2010.
86) M.K. Mandal, L.C. Chen, Y. Hashimoto, Z. Yu, K. Hiraoka. Detection of biomolecules from solutions with high concentration of salts using probe electrospray and nano-electrospray ionization mass spectrometry. Anal. Methods. 2: 1905–1912, 2010.
87) K. Hiraoka, L. chuin Chen, T. Iwama, M. kanti Mandal, S. Ninomiya, H. Suzuki, O. Ariyada, H. Furuya, K. Takekawa. Development of a Remote-from-Plasma Dielectric Barrier Discharge Ion Source and Its Application to Explosives. Journal of the Mass Spectrometry Society of Japan. 58: 215–220, 2010.
88) L.C. Chen, Z. Yu, K. Hiraoka. Vapor phase detection of hydrogen peroxide with ambient sampling chemi/chemical ionization mass spectrometry. Anal. Methods. 2: 897–900, 2010.
89) L.C. Chen, Z. Yu, H. Furuya, Y. Hashimoto, K. Takekawa, H. Suzuki, O. Ariyada, K. Hiraoka. Development of ambient sampling chemi/chemical ion source with dielectric barrier discharge. J. Mass Spectrom. 45: 861–869, 2010.
90) Z. Yu, L.C. Chen, H. Suzuki, O. Ariyada, R. Erra-Balsells, H. Nonami, K. Hiraoka. Direct profiling of phytochemicals in tulip tissues and in vivo monitoring of the change of carbohydrate content in tulip bulbs by probe electrospray ionization mass spectrometry. J Am Soc Mass Spectrom. 20: 2304–2311, 2009.
91) K. Yoshimura, L.C. Chen, D. Asakawa, K. Hiraoka, S. Takeda. Physical properties of the probe electrospray ionization (PESI) needle applied to the biological samples. J. Mass Spectrom. 44: 978–985, 2009.
92) K. Hiraoka, L.C. Chen, D. Asakawa, S. Takeda, T. Kubota. Direct and real-time surface analysis and imaging of biological samples by probe electrospray. J. Surf. Anal. 15: 279–282, 2009.
93) C.L. Chuin, Y. Zhan, N. Hiroshi, H. Yutaka, H. Kenzo. Application of Probe Electrospray Ionization for Biological Sample Measurements. Environ. Control Biol. 47: 73–86, 2009.
94) L.C. Chen, K. Yoshimura, Z. Yu, R. Iwata, H. Ito, H. Suzuki, K. Mori, O. Ariyada, S. Takeda, T. Kubota, K. Hiraoka. Ambient imaging mass spectrometry by electrospray ionization using solid needle as sampling probe. J. Mass Spectrom. 44: 1469–1477, 2009.
95) L.C. Chen, H. Suzuki, K. Mori, O. Ariyada, K. Hiraoka. Mass Spectrometric Detection of Gaseous Hydrogen Peroxide in Ambient Air Using Dielectric Barrier Discharge as an Excitation Source. Chem. Lett. 38: 520–521, 2009.
96) L.C. Chen, K. Mori, H. Hori, K. Hiraoka. Au-assisted visible laser MALDI. Int. J. Mass Spectrom. 279: 41–46, 2009.
97) L.C. Chen, Y. Hashimoto, H. Furuya, K. Takekawa, T. Kubota, K. Hiraoka. Rapid detection of drugs in biofluids using atmospheric pressure chemi/chemical ionization mass spectrometry. Rapid Commun. Mass Spectrom. 23: 333–339, 2009.
98) D. Asakawa, L.C. Chen, K. Hiraoka. The analysis of industrial synthetic polymers by electrospray droplet impact/secondary ion mass spectrometry. J. Mass Spectrom. 44: 945–951, 2009.
99) L.C. Chen, K. Nishidate, Y. Saito, K. Mori, D. Asakawa, S. Takeda, T. Kubota, H. Hori, K. Hiraoka. Characteristics of Probe Electrospray Generated from a Solid Needle. J. Phys. Chem. B. 112: 11164–11170, 2008.
100) L.C. Chen, K. Nishidate, Y. Saito, K. Mori, D. Asakawa, S. Takeda, T. Kubota, N. Terada, Y. Hashimoto, H. Hori, K. Hiraoka. Application of probe electrospray to direct ambient analysis of biological samples. Rapid Commun. Mass Spectrom. 22: 2366–2374, 2008.
101) L.C. Chen, H. Hori, K. Hiraoka. Visible Laser Desorption/Ionization Mass Spectrometry Using Gold Nanostructure. in Progress in Nano-Electro-Optics VI: Nano-Optical Probing, Manipulation, Analysis, and Their Theoretical Bases, (Eds: M. Ohtsu), Springer, Berlin, Heidelberg, 2008, pp. 67–97.
102) D. Asakawa, L.C. Chen, K. Hiraoka. Negative-mode MALDI mass spectrometry for the analysis of pigments using tetrathiafulvalene as a matrix. J. Mass Spectrom. 43: 1494–1501, 2008.
103) L.C. Chen, D. Asakawa, H. Hori, K. Hiraoka. Matrix-assisted laser desorption/ionization mass spectrometry using a visible laser. Rapid Commun. Mass Spectrom. 21: 4129–4134, 2007.
104) L.C. Chen, T. Ueda, M. Sagisaka, H. Hori, K. Hiraoka. Visible Laser Desorption/Ionization Mass Spectrometry Using Gold Nanorods. J. Phys. Chem. C. 111: 2409–2415, 2007.
105) L.C. Chen, J. Yonehama, T. Ueda, H. Hori, K. Hiraoka. Visible-laser desorption/ionization on gold nanostructures. J. Mass Spectrom. 42: 346–353, 2007.
106) O. Aliman, L.C. Chen, C.S. Lim, I. Daut, M. Isa, M.R. Adzman. Solar Engine Application by Using Concentrated Solar Energy. International Energy Journal. 8: 2007.
107) L.C. Chen, A.L.Y. Low, S.F. Chien. Compound Parabolic Tapered Fiber for Fiber Coupling with a Highly Divergent Source. Appl. Opt. 43: 5923–5925, 2004.
108) L.C. Chen, A.L.Y. Low, S.F. Chien. Combinational System of a Truncated Ball Lens and a Hyperbolic Lens for Collimating a Highly Divergent Source. Appl. Opt. 43: 6380–6383, 2004.
109) Y.T. Chen, K.K. Chong, T.P. Bligh, L.C. Chen, J. Yunus, K.S. Kannan, B.H. Lim, C.S. Lim, M.A. Alias, N. Bidin, O. Aliman, S. Salehan, Shk.Abd. Rezan S.A.H., C.M. Tam, K.K. Tan. Non-Imaging, Focusing Heliostat. Solar Energy. 71: 155–164, 2001.