(51) Influence of Natural, Electrically Neutral Lipids on the Potentiometric Responses of Cation-Selective Polymeric Membrane Electrodes. Buhlmann, P.; Hayakawa, M.; Ohshiro, T.; Amemiya, S.; Umezawa, Y. submitted.
(50) Functional Group Recognition with Scanning Tunneling Microscopy Using Chemically Modified Tips: Recognition of Ether Oxygens Through Hydrogen Bond Formation. Nishino, T.; Buhlmann, P.; Ito, T.; Umezawa, Y. submitted.
(49) Scanning Tunneling Microscopy with Chemically Modified Tips: Discrimination of Porphyrin Centers Based on Metal Coordination and Hydrogen Bonding. Ohshiro, T.; Ito, T.; Buhlmann, P.; Umezawa, Y. Anal. Chem. 2001, 73, 1618-1631.
(48) Origin of Non-Nernstian Anion Response Slopes of Metalloporphyrin-Based Liquid/Polymer Membrane Electrodes. Steinle, E.; Amemiya, S.; Buhlmann, P.; Meyerhoff, M. Anal. Chem. 2000, 72, 5766-5773.
(47) Tables of Spectral Data for Structure Determination of Organic Compounds; 3rd edition. Pretsch, E.; Buhlmann, P.; Affolter, C.; Springer Verlag: Berlin, Heidelberg, New York, 2000.
(46) Electrochemical Detection of a One-Base Mismatch in an Oligonucleotide Using Ion-Channel Sensors With Self-Assembled PNA Monolayers. Aoki, H.; Buhlmann, P.; Umezawa, Y. Electroanalysis 2000, 12, 1272-1276.
(45) Selectivity Coefficients of Ion-Selective Electrodes. Umezawa, Y.; Buhlmann, P.; Umezawa, K.; Tohda, K.; Amemiya, S. Pure Appl. Chem. 2000, 72, 1851-2082.
(44) Selectivity of Potentiometric Ion Sensors; Bakker, E.; Pretsch, E.. Buhlmann, P. Anal. Chem. 2000, 72, 1127-1133.
(43) Development of an Ion-Channel Sensor for Heparin Detection. Gadzekpo, V. P. Y.; Buhlmann, P.; Xiao, K. P.; Aoki, H.; Umezawa, Y. Anal. Chim. Acta 2000, 411, 163-173.
(42) Cationic or Anionic Sites? Selectivity Optimization of Ion-Selective Electrodes Based on Charged Ionophores. Amemiya, S.; Buhlmann, P.; Pretsch, E.; Rusterholz, B.; Umezawa, Y. Anal. Chem. 2000, 72, 1618-1631.
(41) Lifetime of Ion-Selective Electrodes Based on Charged Ionophores. Buhlmann, P.; Umezawa, Y.; Rondinini, S.; Vertova, A.; Pigliucci, A.; Bertesago, L. Anal. Chem. 2000, 72, 1843-1852.
(40) Electrostatically Induced Inclusion of Anions in Cyclodextrin Monolayers on Electrodes. Chamberlain, R. V.; Slowinska, K.; Majda, M.; Buhlmann, P.; Aoki, H.; Umezawa, Y. Langmuir 2000, 16, 1388-1396.
(39) Redox-Active Self-Assembled Monolayers as Novel Solid Contacts for Ion-Selective Electrodes. Fibbioli, M.; Bandyopadhyay, K.; Liu, S.-G.; Echegoyen, L.; Bourgeois, J.-P.; Enger, O.; Diederich, F.; Buhlmann, P.; Pretsch, E. Chem. Commun. 2000, 339-340.
(38) Apparently "Non-Nernstian" Equilibrium Responses Based on Complexation Between the Primary Ion and a Secondary Ion in the Liquid ISE Membrane. Buhlmann, P.; Umezawa, Y. Electroanalysis 1999, 11, 687-693.
(37) Ion-Channel-Mimetic Sensors Based on Self-Assembled Monolayers of Phosphate Esters: High Selectivity for Trivalent Cations. Takaya, M.; Buhlmann, P.; Umezawa, Y. Mikrochim. Acta 1999, 132, 55-60.
(36) Ion-Channel-Mimetic Sensing of Hydrophilic Anions Based on Monolayers of a Hydrogen Bond Forming Receptor. Xiao, K. P.; Buhlmann, P.; Umezawa, Y. Anal. Chem. 1999, 71, 1183-1187.
(35) Polymer Membrane Ion-Selective Electrodes---What are the Limits? Bakker, E.; Buhlmann, P.; Pretsch, E. Electroanalysis 1999, 11, 915-933.
(34) Self-Assembly of a Tricarboxylate Receptor Through Thioamide Groups and Its Use for Electrochemical Detection of Protonated Amines. Aoki, H.; Buhlmann, P.; Umezawa, Y. J. Electroanal. Chem. 1999, 473, 105-112.
(33) Polypyrrole-Modified Tips for Functional Group Recognition in Scanning Tunneling Microscopy. Ito, T.; Buhlmann, P.; Umezawa, Y. Anal. Chem. 1999, 71, 1699-1705.
(32) Electrochemical Analysis. Sugawara, M.; Buhlmann, P.; Aoki, H.; Tohda, K.; In: Experiments in Analytical Chemistry (Japanese); ; Umezawa, Y., Motomizu, S., Watarai, H. and Teramae, N., Ed.; Tokyo Kagaku Dojin: Tokyo, Japan, 1999, pp 141-164.
(31) Observation of Silver and Hydrogen Ion Binding to Self-Assembled Monolayers with Chemically Modified AFM Tips; Ito, T.; Citterio, D.; Buhlmann, P.; Umezawa, Y. Langmuir 1999, 15, 2788-2793.
(30) Voltammetric Detection of the Polycation Protamine by the Use of Electrodes Modified with Self-Assembled Monolayers of Thioctic Acid; Gadzekpo, V. P. Y.; Xiao, K. P.; Aoki, H.; Buhlmann, P.; Umezawa, Y. Anal. Chem. 1999, 71, 5109-5115.
(29) An Ion-Selective Electrode for Acetate Based on an Urea-Functionalized Porphyrin as a Hydrogen-Bonding Ionophore. Amemiya, S.; Buhlmann, P.; Umezawa, Y.; Jagessar, R. C.; Burns, D. H. Anal. Chem. 1999, 71, 1049-1054.
(28) Chemical Sensors 1997/1998-Ion Sensors. Buhlmann, P. Chem. Sens. 1998, 14, 93-109.
(27) Carrier-Based Ion-Selective Electrodes and Bulk Optodes. 2. Ionophores for Potentiometric and Optical Sensors; Buhlmann, P.; Pretsch, E.; Bakker, E. Chem. Rev. 1998, 98, 1593-1687.
(26) A Phase Boundary Model for Apparently "Twice-Nernstian" Responses of Liquid Membrane Ion-Selective Electrodes. Amemiya, S.; Buhlmann, P.; Umezawa, Y. Anal. Chem. 1998, 70, 445-454.
(25) Scanning Tunneling Microscopy Using Chemically Modified Tips. Ito, T.; Buhlmann, P.; Umezawa, Y. Anal. Chem. 1998, 70, 255-259.
(24) Application of a Bis-Thiourea Ionophore for an Anion Selective Electrode with a Remarkable Sulfate Selectivity. Nishizawa, S.; Buhlmann, P.; Xiao, K. P.; Umezawa, Y. Anal. Chim. Acta 1998, 358, 35-44.
(23) Co-Ion Interference for Ion-Selective Electrodes Based on Charged and Neutral Ionophores: A Comparison. Buhlmann, P.; Amemiya, S.; Yajima, S.; Umezawa, Y. Anal. Chem. 1998, 70, 4291-4303.
(22) Hydrogen-Bonding Ionophores for Inorganic Anions and Nucleotides and Their Application in Chemical Sensors. Buhlmann, P.; Amemiya, S.; Nishizawa, S.; Xiao, K. P.; Umezawa, Y. J. Inclusion Phenom. Mol. Recognit. Chem. 1998, 32, 151-163.
(21) Chemical Sensing with Chemically Modified Electrodes that Mimic Gating at Biomembranes Incorporating Ion-Channel Receptors. Buhlmann, P.; Aoki, H.; Xiao, K. P.; Amemiya, S.; Tohda, K.; Umezawa, Y. Electroanalysis 1998, 10, 1149-1158.
(20) Fluorescence Mediated Sensing of Guanosine Derivatives Based on Multitopic Hydrogen Bonding. Amemiya, S.; Buhlmann, P.; Umezawa, Y. Chem. Commun. 1997, 1027-1028.
(19) Carrier-Based Ion-Selective Electrodes and Bulk Optodes. 1. General Characteristics. Bakker, E.; Buhlmann, P.; Pretsch, E. Chem. Rev. 1997, 97, 3083-3132.
(18) Donnan Exclusion Failure of Neutral Ionophore-Based Ion-Selective Electrodes Studied by Optical Second-Harmonic Generation. Yajima, S.; Tohda, K.; Buhlmann, P.; Umezawa, Y. Anal. Chem. 1997, 69, 1919-1924.
(17) Hydrogen Bond Based Recognition of Nucleotides by Neutral-Carrier Ion-Selective Electrodes. Amemiya, S.; Buhlmann, P.; Tohda, K.; Umezawa, Y. Anal. Chim. Acta 1997, 341, 129-139. Erratum: Anal. Chim. Acta 1997, 351, 407.
(16) Modification of Silicon Nitride Tips with Trichlorosilane SAMs for Chemical Force Microscopy. Ito, T.; Namba, M.; Buhlmann, P.; Umezawa, Y. Langmuir 1997, 13, 4323-4332.
(15) Strong Hydrogen Bond-Mediated Complexation of H2PO4- by Neutral Bis-Thiourea Hosts. Buhlmann, P.; Nishizawa, S.; Xiao, K. P.; Umezawa, Y. Tetrahedron 1997, 53, 1647-1654.
(14) A Chloride Ion-Selective Polymeric Membrane Electrode Based on a Hydrogen Bond Forming Ionophore. Xiao, K. P.; Buhlmann, P.; Nishizawa, S.; Amemiya, S.; Umezawa, Y. Anal. Chem. 1997, 69, 1038-1044.
(13) Chemical Sensing Based on Membranes with Supramolecular Functions of Biomimetic and Biological Origin. Odashima, K.; Buhlmann, P.; Sugawara, M.; Tohda, K.; Koga, K.; Umezawa, Y.; In: Advances in Supramolecular Chemistry; ; Gokel, G. W., Ed.; JAI Press Inc.: Greenwich, CT, 1997; Vol. 4, 211-285.
(12) Channel-Mimetic Sensing Membranes for Nucleotides Based on Multitopic Hydrogen Bonding. Tohda, K.; Amemiya, S.; Ohki, T.; Nagahora, S.; Tanaka, S.; Buhlmann, P.; Umezawa, Y. Isr. J. Chem. 1997, 37, 267-275.
(11) Chemically Sensitive Interfaces Based on Molecular Self-Assembly. Umezawa, Y.; Buhlmann, P. Chemically Sensitive Interfaces Based on Molecular Self-Assembly, 1995.
(10) EMF Response of Neutral Carrier Based Ion-Selective Field Effect Transistors with Membranes Free of Ionic Sites. Buhlmann, P.; Yajima, S.; Tohda, K.; Umezawa, Y. Electrochim. Acta 1995, 40, 3021-3027.
(9) Anion Recognition by Urea and Thiourea Groups: Remarkably Simple Neutral Receptors for Dihydrogenphosphate. Nishizawa, S.; Buhlmann, P.; Iwao, M.; Umezawa, Y. Tetrahedron Lett. 1995, 36, 6483-6486.
(8) Molecular Resolution Images of a Calix[6]arene from Atomic Force Microscopy. Namba, M.; Sugawara, M.; Buhlmann, P.; Umezawa, Y. Langmuir 1995, 11, 635-638.
(7) Studies on the Phase Boundaries and the Significance of Ionic Sites of Liquid Membrane Ion-Selective Electrodes. Buhlmann, P.; Yajima, S.; Tohda, K.; Umezawa, K.; Nishizawa, S.; Umezawa, Y. Electroanalysis 1995, 7, 811-816.
(6) Anion Recognition by Neutral Hosts with Urea and Thiourea Functions. Buhlmann, P.; Nishizawa, S.; Umezawa, Y. In: Recent Advances in Inorganic and Organometallic Chemistry, JSPS/NUS Joint Seminar on Inorganic and Organometallic Chemistry, Tokyo, Japan, December 5-6, 1994.
(5) Chemical Sensors 1993/1994 - Ion Sensors. Umezawa, Y.; Sugawara, M.; Tohda, K.; Buhlmann, P.; Tani, Y.; Nishizawa, S.; Amemiya, S.; Ito, T.; Kimura, N. Chemical Sensors 1994, 10, 46-60.
(4) Neutral Hosts for the Complexation of Creatinine. Buhlmann, P.; Simon, W. Tetrahedron 1993, 49, 7627-7636.
(3) Molecular Recognition of Creatinine. Buhlmann, P.; Badertscher, M.; Simon, W. Tetrahedron 1993, 49, 595-598.
(2) Optical sensors based on neutral carriers. Spichiger, U. E.; Simon, W.; Bakker, E.; Lerchi, M.; Buhlmann, P.; Haug, J.-P.; Kuratli, M.; Ozawa, S.; West, S. Sensors and Actuators 1993, 11, 1-8.
(1) Carrier Based Optodes. Simon, W.; Morf, W. E.; Seiler, K.; Spichiger, U. E.; Haug, J.-P.; Buhlmann, P. Proceedings of the 3rd International Meeting on Chemical Sensors, Cleveland, Ohio, USA, September 24-26, 1990; 9-12.