tetraphenylborate

Summary

Summary: An anionic compound that is used as a reagent for determination of potassium, ammonium, rubidium, and cesium ions. It also uncouples oxidative phosphorylation and forms complexes with biological materials, and is used in biological assays.

Top Publications

  1. Arnold W, Zimmermann U, Heiden W, Ahlers J. The influence of tetraphenylborates (hydrophobic anions) on yeast cell electro-rotation. Biochim Biophys Acta. 1988;942:96-106 pubmed
    The action of a series of tetraphenylborate ion (TPB) derivatives on yeast cells was studied by electro-rotation of the pre-treated cells...
  2. Kutty R, Santostasi G, Horng J, Krishna G. MPTP-induced ATP depletion and cell death in neuroblastoma X glioma hybrid NG 108-15 cells: protection by glucose and sensitization by tetraphenylborate. Toxicol Appl Pharmacol. 1991;107:377-88 pubmed
    ..The ATP depletion was also reduced by the presence of a high concentration of glucose. In contrast, tetraphenylborate, a lipophilic anion, highly potentiated the ATP depletion and the subsequent cell death induced by MPTP...
  3. Zeng H, Hua R. Palladium-catalyzed hydrophenylation of alkynes with sodium tetraphenylborate under mild conditions. J Org Chem. 2008;73:558-62 pubmed
    ..acid, PdCl2(PPh3)2 showed high catalytic activity for the hydrophenylation of both terminal and internal alkynes with sodium tetraphenylborate (NaBPh4) under mild conditions, affording phenyl alkenes in moderate to excellent yields.
  4. Smejtek P, Wang S. Adsorption to dipalmitoylphosphatidylcholine membranes in gel and fluid state: pentachlorophenolate, dipicrylamine, and tetraphenylborate. Biophys J. 1990;58:1285-94 pubmed
    ..on the aqueous concentration of negatively charged ions of pentachlorophenol (PCP), dipicrylamine (DPA), and tetraphenylborate (TPhB)...
  5. Wu M, Santos Sacchi J. Effects of lipophilic ions on outer hair cell membrane capacitance and motility. J Membr Biol. 1998;166:111-8 pubmed
    ..We have studied the effects of the lipophilic ions, tetraphenylborate (TPB-) and tetraphenylphosphonium (TPP+), on nonlinear capacitance and motility of isolated guinea-pig OHCs...
  6. Schamberger J, Clarke R. Hydrophobic ion hydration and the magnitude of the dipole potential. Biophys J. 2002;82:3081-8 pubmed
    ..of lipid membranes is often estimated from the difference in conductance between the hydrophobic ions, tetraphenylborate, and tetraphenylarsonium or tetraphenylphosphonium...
  7. Oberhauser A, Fernandez J. Hydrophobic ions amplify the capacitive currents used to measure exocytotic fusion. Biophys J. 1995;69:451-9 pubmed
    ..Our results indicate that hydrophobic ions provide an important tool for high resolution studies of membrane capacitance...
  8. Piwnica Worms D, Kronauge J, Chiu M. Enhancement by tetraphenylborate of technetium-99m-MIBI uptake kinetics and accumulation in cultured chick myocardial cells. J Nucl Med. 1991;32:1992-9 pubmed
    ..To test for enhancement of uptake kinetics by lipophilic anions, cultured chick heart cells were exposed to tetraphenylborate (TPB), which produced a concentration-dependent maximal 15-fold increase in Tc-MIBI uptake kinetics (at 3 x ..
  9. Klodos I. Influence of intramembrane electric charge on H,K-ATPase. Ann N Y Acad Sci. 2003;986:306-7 pubmed

More Information

Publications93

  1. Buhler R, Stürmer W, Apell H, Läuger P. Charge translocation by the Na,K-pump: I. Kinetics of local field changes studied by time-resolved fluorescence measurements. J Membr Biol. 1991;121:141-61 pubmed
    ..In particular, electrochromic dyes can be used for studying electrogenic processes in microsomal membrane preparations which are not amenable to electrophysiological techniques. ..
  2. Liu G, Oba T. Change in surface charge of sarcoplasmic reticulum membrane may elicit conformational change in sulfhydryl groups of membrane proteins to release calcium. Jpn J Physiol. 1989;39:623-7 pubmed
    ..Tetraphenylarsonium (TPA+) inhibited these effects of TPB-. Change in surface charge of SR is suggested to cause conformational change in SR membrane proteins, and then result in Ca2+ release from the SR. ..
  3. Kaminskaya O, Shuvalov V, Renger G. Two reaction pathways for transformation of high potential cytochrome b559 of PS II into the intermediate potential form. Biochim Biophys Acta. 2007;1767:550-8 pubmed
  4. Chisari M, Wu K, Zorumski C, Mennerick S. Hydrophobic anions potently and uncompetitively antagonize GABA(A) receptor function in the absence of a conventional binding site. Br J Pharmacol. 2011;164:667-80 pubmed publisher
    ..To gain new insights, we tested two structurally unrelated hydrophobic anions with superficially similar properties to sulphated neurosteroids...
  5. Shamsipur M, Sadeghi M, Garau A, Lippolis V. An efficient and selective flourescent chemical sensor based on 5-(8-hydroxy-2-quinolinylmethyl)-2,8-dithia-5-aza-2,6-pyridinophane as a new fluoroionophore for determination of iron(III) ions. A novel probe for iron speciation. Anal Chim Acta. 2013;761:169-77 pubmed publisher
    ..L) as a neutral Fe(3+)-selective fluoroionophore in the plasticized PVC membrane containing sodium tetraphenylborate as a liphophilic anionic additive...
  6. Argaman A, Shoshan Barmatz V. Dicyclohexylcarbodiimide interaction with sarcoplasmic reticulum. Inhibition of Ca2+ efflux. J Biol Chem. 1988;263:6315-21 pubmed
    ..The involvement of one or all of the DCCD-labeled proteins in Ca2+ release and ryanodine binding is discussed. ..
  7. Hilp M, Zembatova S. Cetylpyridinium tetrachlorozincate as standard for tenside titration. Analytical methods with 1,3-dibromo-5,5-dimethylhydantoin (DBH) in respect to environmental and economical concern, part 19. Pharmazie. 2004;59:615-7 pubmed
    ..bromophenol blue as indicator can be performed more simple. Cetylpyridinium tetrachlorozincate is recommended as a standard for tenside titration. ..
  8. Soler F, Fernandez Belda F, Gomez Fernandez J. Characterization of the tetraphenylboron-induced calcium release from skeletal sarcoplasmic reticulum. Eur J Biochem. 1989;181:513-8 pubmed
  9. Ganjali M, Rezapour M, Pourjavid M, Haghgoo S. ppt level detection of samarium(III) with a coated graphite sensor based on an antibiotic. Anal Sci. 2004;20:1007-11 pubmed
    ..It was used as an indicator electrode in potentiometric titration of Sm(III) ions with an EDTA solution, and for determination of samarium in binary and ternary mixtures. ..
  10. Kaminskaya O, Shuvalov V, Renger G. Evidence for a novel quinone-binding site in the photosystem II (PS II) complex that regulates the redox potential of cytochrome b559. Biochemistry. 2007;46:1091-105 pubmed
    ..The possible physiological role of the Q(C) site as a regulator of the reactivity of Cyt b559 is discussed. ..
  11. Issa Y, Mohamed S, Baset M. Chemically modified carbon paste and membrane sensors for the determination of benzethonium chloride and some anionic surfactants (SLES, SDS, and LABSA): Characterization using SEM and AFM. Talanta. 2016;155:158-67 pubmed publisher
    Chemically modified carbon-paste (CMCP) and membrane- sensors based on incorporating benzothonium-tetraphenylborate (BT-TPB) were constructed for the analysis of benzethonium chloride, and some other surfactants such as sodium lauryl ..
  12. Shahamirifard S, Ghaedi M, Montazerozohori M, Masoudiasl A. Carbon dots as absorbance promoter probes for detection of Cu(ii) ions in aqueous solution: central composite design approach. Photochem Photobiol Sci. 2018;17:245-255 pubmed publisher
    ..the first time, the membrane composition of the proposed optical sensor including NHBMDI as the ionophore, tetraphenylborate (NaTPB) as the anionic additive, dibutyl phthalate (DBP) as the plasticizer and polyvinyl chloride (PVC) as ..
  13. Stürmer W, Buhler R, Apell H, Läuger P. Charge translocation by the Na,K-pump: II. Ion binding and release at the extracellular face. J Membr Biol. 1991;121:163-76 pubmed
    ..notion is further supported by experiments with lipophilic ions, such as tetraphenylphosphonium (TPP+) or tetraphenylborate (TPB-), which are known to bind to lipid bilayers and to change the electrostatic potential inside the ..
  14. Kapsimali D, Zachariadis G. Comparison of tetraethylborate and tetraphenylborate for selenite determination in human urine by gas chromatography mass spectrometry, after headspace solid phase microextraction. Talanta. 2010;80:1311-7 pubmed publisher
    ..The reagents were sodium tetraethylborate (NaBEt(4)) and tetraphenylborate (NaBPh(4)), respectively, and the procedure is based on in situ derivatization of selenites in aqueous ..
  15. Liu G, Oba T. Effects of tetraphenylboron-induced increase in inner surface charge on Ca2+ release from sarcoplasmic reticulum. Jpn J Physiol. 1990;40:723-36 pubmed
    ..Thus, the local increase in negative charge on the SR inner membrane leaflet seems to be causally related to the Ca2+ release. Mg2+ and TPA+ are suggested to inhibit TPB(-)-induced Ca2+ release by different mechanisms. ..
  16. Bandi K, Upadhyay A, Singh A, Jain A. Nano-level monitoring of Er(III) by fabrication of coated graphite electrode based on newly synthesized Schiff base as neutral carrier. Mater Sci Eng C Mater Biol Appl. 2016;62:9-17 pubmed publisher
    ..sodium tetraphenylborate and potassium tetrakis-p-(chlorophenyl)borate was studied in detail and improved performance was observed...
  17. Eren H, Uzun H, Andac M, Bilir S. Potentiometric monitoring of cobalt in beer sample by solid contact ion selective electrode. J Food Drug Anal. 2014;22:413-417 pubmed publisher
    ..The best performance was observed with the membrane having an ionophore/polyvinyl chloride/sodium tetraphenylborate/nitrophenyl octyl ether ratio of 3.5:33:1.5:62 (w/w; mg)...
  18. Ozumerzifon T, Bhowmick I, Spaller W, Rappé A, Shores M. Toward steric control of guest binding modality: a cationic Co(ii) complex exhibiting cation binding and zero-field relaxation. Chem Commun (Camb). 2017;53:4211-4214 pubmed publisher
    ..The air- and moisture-stable tetraphenylborate salt (2) shows slow magnetic relaxation under both zero and applied dc fields...
  19. Bouchaala R, Mercier L, Andreiuk B, Mely Y, Vandamme T, Anton N, et al. Integrity of lipid nanocarriers in bloodstream and tumor quantified by near-infrared ratiometric FRET imaging in living mice. J Control Release. 2016;236:57-67 pubmed publisher
    ..5 and 7.5 dyes with a help of bulky hydrophobic counterion tetraphenylborate. Excellent brightness and efficient Förster Resonance Energy Transfer (FRET) inside lipid NCs enabled for ..
  20. Hiegel K, Spangenberg B. New method for the quantification of dequalinium cations in pharmaceutical samples by absorption and fluorescence diode array thin-layer chromatography. J Chromatogr A. 2009;1216:5052-6 pubmed publisher
    ..The total for the quantification of an ointment sample (measuring four standards and five samples), including all sample pre-treatment steps takes less than 45 min! ..
  21. McPherson G, Piekarska A. Antagonism by lipophilic quaternary ions of the K+ channel opener, levcromakalim, in vascular smooth muscle. Br J Pharmacol. 1994;112:1223-9 pubmed
    ..However, given the lipophilicity of these compounds, it is possible they may act at a number of sites including the KATP channel itself or possibly via some other intracellular mechanism. ..
  22. Malik A. Determination of the fungicide ferbam in wheat grains after adsorption onto microcrystalline naphthalene. J AOAC Int. 2000;83:971-5 pubmed
    ..the determination of iron(III) dimethyldithiocarbamate by converting it into iron(II)-bathophenanthroline-tetraphenylborate complex, which was then adsorbed onto microcrystalline naphthalene...
  23. Sayre L, Wang F, Arora P, Riachi N, Harik S, Hoppel C. Dopaminergic neurotoxicity in vivo and inhibition of mitochondrial respiration in vitro by possible endogenous pyridinium-like substances. J Neurochem. 1991;57:2106-15 pubmed
    ..Relative to MPP+, all compounds tested had weak dopaminergic uptake activity in vitro and weak dopaminergic toxicity in vivo, consistent with other findings of relatively low neurotoxic potential for presumed endogenous pyridiniums. ..
  24. Seelig J, Ganz P. Nonclassical hydrophobic effect in membrane binding equilibria. Biochemistry. 1991;30:9354-9 pubmed
    ..dye 2-(p-toluidinyl)naphthalene-6-sulfonate (TNS), the membrane conductivity inducing anion tetraphenylborate (TPB), the Ca2+ channel blocker amlodipine [Bäuerle, H. D., & Seelig, J...
  25. Mbongo N, Loiseau P, Lawrence F, Craciunescu D, Robert Gero M. Uptake into leishmania donovani promastigotes and antileishmanial action of an organometallic complex derived from pentamidine. Arzneimittelforschung. 1998;48:850-5 pubmed
    Iridium (Ir)-(COD)-pentamidine tetraphenylborate (CAS 225-75-4) was selected from a primary screening to be evaluated in vitro on three Leishmania (L.) strains comparatively to pentamidine used as reference compound...
  26. Rizzuto F, Wu W, Ronson T, Nitschke J. Peripheral Templation Generates an M(II) 6 L4 Guest-Binding Capsule. Angew Chem Int Ed Engl. 2016;55:7958-62 pubmed publisher
    ..tetrahedral guests and most of the anions investigated were observed to bind within the central cavity, tetraphenylborate anions bound on the outside, with one phenyl ring pointing into the cavity...
  27. Drain C, Mauzerall D. Photogating of ionic currents across lipid bilayers. Hydrophobic ion conductance by an ion chain mechanism. Biophys J. 1992;63:1556-63 pubmed
    ..This ion chain conductance can be viewed as an evolutionary prototype of an ion channel across the membrane. It also underscores the importance of the counter ion in the transport of large ions such as peptides across the lipid bilayer. ..
  28. Casely I, Ziller J, Mincher B, Evans W. Bismuth coordination chemistry with allyl, alkoxide, aryloxide, and tetraphenylborate ligands and the {[2,6-(Me2NCH2)2C6H3]2Bi}+ cation. Inorg Chem. 2011;50:1513-20 pubmed publisher
    ..Chloride is removed from 1 by NaBPh(4) to form [Ar'(2)Bi][BPh(4)], 5, which crystallizes from THF in an unsolvated form with tetraphenylborate as an outer sphere counteranion.
  29. Mauzerall D, Drain C. Photogating of ionic currents across lipid bilayers. Electrostatics of ions and dipoles inside the membrane. Biophys J. 1992;63:1544-55 pubmed
    ..However, the synergistic movement of the positive choline group into the membrane can account for the large positive potential. ..
  30. Shulov I, Arntz Y, Mely Y, Pivovarenko V, Klymchenko A. Non-coordinating anions assemble cyanine amphiphiles into ultra-small fluorescent nanoparticles. Chem Commun (Camb). 2016;52:7962-5 pubmed publisher
    A non-coordinating anion, fluorinated tetraphenylborate, assembles specially designed cationic cyanine amphiphiles into 7-8 nm fluorescent nanoparticles that are >40-fold brighter than a single cyanine dye...
  31. Rheault M, O Donnell M. Organic cation transport by Malpighian tubules of Drosophila melanogaster: application of two novel electrophysiological methods. J Exp Biol. 2004;207:2173-84 pubmed
    ..Kinetic parameters (J(max) and K(t)) were determined using both approaches...
  32. Zayed S, Issa Y. Sibutramine selective electrodes for batch and flow injection determinations in pharmaceutical preparations. Anal Sci. 2010;26:45-9 pubmed
    ..The sensors are based on the ion association complexes of sibutramine with sodium tetraphenylborate (NaTPB) or phosphotungstic acid (PTA) using dibutyl phthalate as plasticizing solvent...
  33. Smith D, Chidipudi S, Goundry W, Lam H. Rhodium-catalyzed [2 + 2] cycloaddition of ynamides with nitroalkenes. Org Lett. 2012;14:4934-7 pubmed
    ..The presence of sodium tetraphenylborate was found to be crucial for the reactions to proceed efficiently.
  34. Shoshan Barmatz V. Activation of Ca2+ release in isolated sarcoplasmic reticulum. J Membr Biol. 1988;103:67-77 pubmed
    ..They also suggest that membrane surface charges might play an important role in the control mechanism of Ca2+ release...
  35. Piekarska A, McPherson G. Structure-activity relationship of quaternary ion antagonism of levcromakalim-induced relaxation in pig coronary artery. Eur J Pharmacol. 1997;322:37-44 pubmed
    ..It is also apparent that marked changes can be made in the substitution on the phosphonium ion (ethyl to hexyl) with little or no effect on their potency...
  36. Hainfeld J, Foley C, Maelia L, Lipka J. Eleven tungsten atom cluster labels: high-resolution, site-specific probes for electron microscopy. J Histochem Cytochem. 1990;38:1787-93 pubmed
    ..These new labels are beam resistant and provide significantly higher resolution then most other electron microscopy (EM) markers. Labeling of the protein albumin is described as an example...
  37. Mohamed G, Ali T, El Shahat M, Migahed M, Al Sabagh A. Novel screen-printed electrode for the determination of dodecyltrimethylammonium bromide in water samples. Drug Test Anal. 2012;4:1009-13 pubmed publisher
    ..The sensor was based on the use of DTA-tetraphenylborate ion association complex as an electroactive material in screen-printed electrode with dioctylsebacate (DOS) ..
  38. Loiseau P, Mbongo N, Bories C, Boulard Y, Craciunescu D. In vivo antileishmanial action of Ir-(COD)-pentamidine tetraphenylborate on Leishmania donovani and Leishmania major mouse models. Parasite. 2000;7:103-8 pubmed
    Ir-(COD)-pentamidine tetraphenylborate which has previously been studied on promastigote forms of Leishmania, was investigated for its antileishmanial properties compared with pentamidine used as reference compound...
  39. Masadome T, Yada K, Wakida S. Microfluidic polymer chip integrated with an ISFET detector for cationic surfactant assay in dental rinses. Anal Sci. 2006;22:1065-9 pubmed
    ..surfactant ion-selective field-effect transistor (cationic surfactant-ISFET) has been developed based on the tetraphenylborate derivative known as sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate...
  40. Mauchamp J. [Dissociation of thyroglobulin by tetraphenylborate ion]. Biochim Biophys Acta. 1971;251:281-4 pubmed
    ..The electrophoretic mobilities on acrylamide gels of sodium tetraphenyl borate-resistant molecules and of native thyroglobulin are identical. Sodium dodecyl sulfate-resistant molecules move more slowly than the native protein...
  41. Badr I, Gouda M, Abdel Sattar R, Sayour H. Reduction of thrombogenicity of PVC-based sodium selective membrane electrodes using heparin-modified chitosan. Carbohydr Polym. 2014;99:783-90 pubmed publisher
  42. Chowdhury M, Kataky R. Emulsification at the Liquid/Liquid Interface: Effects of Potential, Electrolytes and Surfactants. Chemphyschem. 2016;17:105-11 pubmed publisher
    ..4 mm, the Marangoni effect and the interfacial emulsification became more prominent. The chaotic behaviour was found to be dependent on the surfactant concentration and the electrolytes present. ..
  43. Sedgwick E, Bragg P. Mechanism of energization of uptake of the fluorescent dye 2-(4-dimethylaminostyryl)-1-ethylpyridinium cation [DMP+] into an acrA strain of Escherichia coli. Biochim Biophys Acta. 1992;1099:51-6 pubmed
    ..Attempts to demonstrate the latter mechanism in everted membrane vesicles were unsuccessful...
  44. Sayre L, Wang F, Hoppel C. Tetraphenylborate potentiates the respiratory inhibition by the dopaminergic neurotoxin MPP+ in both electron transport particles and intact mitochondria. Biochem Biophys Res Commun. 1989;161:809-18 pubmed
    ..Nernstian transport into mitochondria in response to the transmembrane electrochemical potential gradient, tetraphenylborate (TPB-) was found to accelerate the onset of the respiratory inhibition by MPP+ on intact mitochondria...
  45. Taher M. Flame atomic absorption spectrometric determination of trace chromium in various standard samples after preconcentration with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol. Fresenius J Anal Chem. 2000;368:421-3 pubmed
    ..The interference of a large number of anions and cations has been studied and the optimized conditions developed were utilized for the trace determination of chromium in various standard alloys and biological samples...
  46. Hartvig R, Mendez M, van de Weert M, Jorgensen L, Østergaard J, Girault H, et al. Interfacial complexes between a protein and lipophilic ions at an oil-water interface. Anal Chem. 2010;82:7699-705 pubmed publisher
  47. Tyagi S, Agarwal H, Ikram S. Potentiometric polymeric membrane electrodes for mercury detection using calixarene ionophores. Water Sci Technol. 2010;61:693-704 pubmed publisher
    ..Excellent selectivity for Hg(2+) ions is indicated by match potential method and fixed interference method. The sensors could be used successfully in the estimation of mercury in different sample...
  48. Klodos I, Plesner L. The influence of membrane charge on the kinetic properties of Na,K-ATPase. Acta Physiol Scand Suppl. 1992;607:235-9 pubmed
    ..The effect of TPP+ on the ATP hydrolysis rate strongly resembled the effect of decreasing [KCl]. The results indicated a pronounced effect of adding positive charge to the lipid environment of site III.(ABSTRACT TRUNCATED AT 250 WORDS)..
  49. Aiuchi T, Syou M, Matsunaga M, Kinemuchi H, Nakaya K, Nakamura Y. Enhancement of the uptake of 1-methyl-4-phenylpyridinium ion (MPP+) in mitochondria by tetraphenylboron. Biochim Biophys Acta. 1992;1103:233-8 pubmed
    ..3) The respiratory inhibition induced to release MPP+ from the matrix. The relation between MPP+ distribution in the membrane of mitochondria and the respiratory inhibition by MPP+ are discussed...
  50. Hayashi H, Karasawa S, Koga N. Molecular structure and magnetic properties of 1-ethyl-2-(1-oxy-3-oxo-4,4,5,5-tetramethylimidazolin-2-yl)-3-methylimidazolium arylcarboxylates and other salts. J Org Chem. 2008;73:8683-93 pubmed publisher
    ..and converted to seven salts, [EMINN](+)[X](-) (X = I, TFSI (bis(trifluoromethanesulfonyl)imide), BPh4 (tetraphenylborate), [EMINN](+)(1-3)[BA(1-3)]((1-3)-); BA1 (benzoic acid), BA2 (terephthalic acid), and BA3 (trimesic acid), ..
  51. Taher M. Flame atomic absorption spectrometric determination of trace amounts of manganese in alloys and biological samples after preconcentration with the ion pair of 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol and ammonium tetraphenylborate on microcrysta. Anal Sci. 2001;17:969-73 pubmed
    Manganese is quantitatively retained on 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP)-ammonium tetraphenylborate with microcrystalline naphthalene or by a column method in the pH range 7.5-10...
  52. Zareh M, Issa Y, Shoukry A, Shohaib R. Potentiometric determination of ephedrine hydrochloride using plastic membrane ion-selective electrode. J Chem Technol Biotechnol. 1993;58:371-6 pubmed
    A plastic membrane electrode based on phenylephrine-tetraphenylborate ion association shows a Nernstian response to both ephedrinium (Ep+) and silver (Ag+) cations over the concentration ranges 2 x 10(-5)-10(-1) M and 10(-5)-10(-1) M for ..
  53. Sun K, Mauzerall D. Evidence for ion chain mechanism of the nonlinear charge transport of hydrophobic ions across lipid bilayers. Biophys J. 1996;71:295-308 pubmed
    The conductivity across a lipid bilayer by tetraphenylborate anion is increased 10-fold on the photoformation of lipophilic porphyrin cations. The cations alone have negligible conductivity...
  54. Aiuchi T, Matsunaga M, Syo M, Nakaya K. The relation between respiratory inhibition and uptake of 1-methyl-isoquinoline (MIQ+) in mitochondria. Neurochem Int. 1996;28:319-23 pubmed
    ..But, it does not eliminate the possibility that MIQ+ acts as a neurotoxin in the long-term, since MIQ+ was taken up in mitochondria and inhibited the respiration...
  55. McIntosh T, Simon S, Vierling P, Santaella C, Ravily V. Structure and interactive properties of highly fluorinated phospholipid bilayers. Biophys J. 1996;71:1853-68 pubmed
    ..Thus, compared to conventional liposomes, liposomes made from fluoroalkylated PCs have different binding properties, which may be relevant to their use as drug carriers...
  56. Miyoshi H, Inoue M, Okamoto S, Ohshima M, Sakamoto K, Iwamura H. Probing the ubiquinone reduction site of mitochondrial complex I using novel cationic inhibitors. J Biol Chem. 1997;272:16176-83 pubmed
    ..With a combined use of MP6 and 2,3-diethoxy-5-methyl-6-geranyl-1,4-benzoquinone, we also provided kinetic evidence for the existence of two ubiquinone binding sites...
  57. Erukova V, Krylova O, Antonenko Y, Melik Nubarov N. Effect of ethylene oxide and propylene oxide block copolymers on the permeability of bilayer lipid membranes to small solutes including doxorubicin. Biochim Biophys Acta. 2000;1468:73-86 pubmed
    ..Pluronics also accelerate the translocation of large hydrophobic anions (tetraphenylborate)...
  58. el Masdouri L, Aubry A, Grand V, Marraud M. Structure of tBuCO-Gly-Gly psi [CH2-N+H2]NHEt.BPh4-. Acta Crystallogr C. 1992;48 ( Pt 1):173-5 pubmed
    N-(tert-Butylcarbonylglycylaminoethyl)-N-(ethyl)ammonium tetraphenylborate, C11H24N3O+2.C24H20B-, Mr = 549.57, triclinic, P-1, a = 11.567 (2), b = 11.922 (2), c = 14.484 (3) A, alpha = 70.99 (2), beta = 74.83 (2), gamma = 59...
  59. Leenhouts J, Chupin V, de Gier J, De Kruijff B. The membrane potential has no detectable effect on the phosphocholine headgroup conformation in large unilamellar phosphatidylcholine vesicles as determined by 2H-NMR. Biochim Biophys Acta. 1993;1153:257-61 pubmed
    ..However, this method could be used to measure the redistribution of tetraphenylphosphonium across the bilayer in response to delta psi, which reorients the phosphocholine headgroups in the opposite bilayer-water interfaces...
  60. Deschamps D, DeBeco V, Fisch C, Fromenty B, Guillouzo A, Pessayre D. Inhibition by perhexiline of oxidative phosphorylation and the beta-oxidation of fatty acids: possible role in pseudoalcoholic liver lesions. Hepatology. 1994;19:948-61 pubmed
    ..These effects may contribute to the development of necrosis, steatosis and possibly certain other pseudoalcoholic liver lesions in human beings...
  61. Muzikar J, van de Goor T, Gas B, Kenndler E. Electrophoretic mobilities of large organic ions in nonaqueous solvents: determination by capillary electrophoresis in propylene carbonate, N,N-dimethylformamide, N,N,-dimethylacetamide, acetonitrile and methanol. Electrophoresis. 2002;23:375-82 pubmed
    The mobilities of the monocharged permanent tertraphenylphosphonium cation and tetraphenylborate anion are determined by capillary zone electrophoresis in different organic solvents as a function of the ionic strength, I, of the ..
  62. Wu G, Terskikh V. A multinuclear solid-state NMR study of alkali metal ions in tetraphenylborate salts, M[BPh4] (M = Na, K, Rb and Cs): what is the NMR signature of cation-pi interactions?. J Phys Chem A. 2008;112:10359-64 pubmed publisher
    We report a multinuclear solid-state ( (23)Na, (39)K, (87)Rb, (133)Cs) NMR study of tetraphenylborate salts, M[BPh 4] (M = Na, K, Rb, Cs)...
  63. Inabayashi M, Miyauchi S, Kamo N, Jin T. Conductance change in phospholipid bilayer membrane by an electroneutral ionophore, monensin. Biochemistry. 1995;34:3455-60 pubmed
    ..It should be noted that this electrogenic component may change the membrane potential...
  64. Piwnica Worms D, Rao V, Kronauge J, Croop J. Characterization of multidrug resistance P-glycoprotein transport function with an organotechnetium cation. Biochemistry. 1995;34:12210-20 pubmed
    ..The biochemical data favor a high Km, high capacity allosterically modulated translocation mechanism for P-glycoprotein-mediated transport of this organometallic cation...
  65. Chiu M, Herman L, Kronauge J, Piwnica Worms D. Comparative effects of neutral dipolar compounds and lipophilic anions on technetium 99m-hexakis (2-methoxyisobutyl isonitrile) accumulation in cultured chick ventricular myocytes. Invest Radiol. 1992;27:1052-8 pubmed
    ..sarcolemmal and mitochondrial membrane potentials, and can be enhanced by addition of the lipophilic anion, tetraphenylborate (TPB)...
  66. Jin D, Dai Z, Zhang D. 4-[2-(3-Methoxyphenyl)ethenyl]-N-methylpyridinium tetraphenylborate. Acta Crystallogr C. 2008;64:o50-2 pubmed publisher
    ..The hexagon is constructed from six BPh(4)(-) anions. The cations interact in a head-to-tail fashion along [010], forming chains, and pack antiparallel inside the above honeycomb-like structure through C-H...pi interactions...
  67. Davey G, Tipton K, Murphy M. Uptake and accumulation of 1-methyl-4-phenylpyridinium by rat liver mitochondria measured using an ion-selective electrode. Biochem J. 1992;288 ( Pt 2):439-43 pubmed
    ..These data indicate that MPP+ interacts with mitochondria independently of its inhibition of NADH-ubiquinone oxidoreductase, and these alternative interactions may be of relevance for its mechanism of neurotoxicity...
  68. Benz R. Structural requirement for the rapid movement of charged molecules across membranes. Experiments with tetraphenylborate analogues. Biophys J. 1988;54:25-33 pubmed
    Charge-pulse experiments were performed in the presence of structural analogues of tetraphenylborate (TPB) on membranes made of dioleoyl phosphatidylethanolamine and dioleoyl phosphatidylcholine...
  69. Mohamed G, El Shahat M, Al Sabagh A, Migahed M, Ali T. Septonex-tetraphenylborate screen-printed ion selective electrode for the potentiometric determination of Septonex in pharmaceutical preparations. Analyst. 2011;136:1488-95 pubmed publisher
    ..of 1-(ethoxycarbonyl)pentadecyltrimethylammonium bromide (Septonex) based on the use of Septonex-tetraphenylborate as the electroactive substance, and o-nitrophenyloctylether (o-NPOE) as the plasticizing agent...
  70. Fernandez Belda F, Gomez Fernandez J. Effect of the calcium-channel blockers on calcium accumulation in sarcoplasmic reticulum of skeletal muscle. Biochim Biophys Acta. 1987;903:473-9 pubmed
    ..This study suggests the existence of a Ca2+ pathway (putative channels) which is blocked by the drugs tested allowing Ca2+ accumulation inside the vesicles owing to the Ca2+-dependent ATPase activity...
  71. Samardžić M, Sak Bosnar M, Madunić Čačić D. Simultaneous potentiometric determination of cationic and ethoxylated nonionic surfactants in liquid cleaners and disinfectants. Talanta. 2011;83:789-94 pubmed publisher
    ..potentiometric surfactant sensor based on a highly lipophilic 1,3-didecyl-2-methyl-imidazolium cation and a tetraphenylborate (TPB) antagonist ion was used as the end-point detector in ion-pair potentiometric surfactant titrations ..
  72. Pancras J, Puri B. Column preconcentration and FAAS determination of copper, iron, nickel and zinc using 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol-tetraphenylborate-naphthalene adsorbent. Anal Bioanal Chem. 2002;374:1306-11 pubmed
    ..material obtained from an ion-pair of 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) and tetraphenylborate (TPB), and microcrystals of naphthalene has been tried as an adsorbent for the column preconcentration of ..
  73. Alçada M, Lima J, Montenegro M. FIA titrations of ephedrine in pharmaceutical formulations with a PVC tetraphenylborate tubular electrode. J Pharm Biomed Anal. 1995;13:459-64 pubmed
    ..For this purpose a tetraphenylborate tubular electrode was constructed...
  74. Ashizawa K, Imaizumi T, Okauchi K. Effects of tetraphenylboron on the motility, oxygen consumption, and adenosine 5'-triphosphate content of fowl spermatozoa. Poult Sci. 1990;69:1563-8 pubmed
    ..Tetraphenylboron did not affect the motility of demembraned spermatozoa, suggesting that the locus of action of tetraphenylboron is not directly on the axoneme of fowl spermatozoa...
  75. Gupta V, Singh A, Gupta B. Development of membrane electrodes for selective determination of some antiepileptic drugs in pharmaceuticals, plasma and urine. Anal Bioanal Chem. 2007;389:2019-28 pubmed
  76. Zou J, Jiang H, Wang L, Jiang Z. [Resonance Rayleigh scattering spectra of berberine-tetraphenylboron association nanoparticle and its analytical application]. Yao Xue Xue Bao. 2003;38:530-3 pubmed
    ..To study the relationship between resonance Rayleigh scattering(RRS) and the formation of association nanoparticle, and to develop a new and sensitive RRS method for the determination of trace berberine (BB)...
  77. Bazylak G, Nagels L. A novel potentiometric approach for detection of beta-adrenergics and beta-adrenolytics in high-performance liquid chromatography. Farmaco. 2003;58:591-603 pubmed
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    ..It is suggested that TPB- facilitates the entry of DMP+ into the fatty acyl chain regions of the phospholipid bilayer...
  79. Ramsay R, Mehlhorn R, Singer T. Enhancement by tetraphenylboron of the interaction of the 1-methyl-4-phenylpyridinium ion (MPP+) with mitochondria. Biochem Biophys Res Commun. 1989;159:983-90 pubmed
    ..We suggest that TPB- acts by ion pairing with MPP+ to facilitate penetration into mitochondria as well as access to a hydrophobic inhibition site on NADH dehydrogenase...
  80. Heikkila R, Hwang J, Ofori S, Geller H, Nicklas W. Potentiation by the tetraphenylboron anion of the effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine and its pyridinium metabolite. J Neurochem. 1990;54:743-50 pubmed
    ..All of these observations, taken together, are consistent with the premise that the inhibitory effect of MPP+ on mitochondrial respiration within dopaminergic neurons is the ultimate mechanism to explain MPTP-induced neurotoxicity...
  81. Drain C, Christensen B, Mauzerall D. Photogating of ionic currents across a lipid bilayer. Proc Natl Acad Sci U S A. 1989;86:6959-62 pubmed
    ..Thus there is a net gain in this organic field effect phototransistor. The gating can also be accomplished by continuous light or chemical oxidants. Photogating is explained as space charge effects inside the bilayer...
  82. Chung S, Chan B. A reliable method to determine methylmercury and ethylmercury simultaneously in foods by gas chromatography with inductively coupled plasma mass spectrometry after enzymatic and acid digestion. J Chromatogr A. 2011;1218:1260-5 pubmed publisher
    ..MeHg and EtHg in the extract were derivatized in an aqueous buffer with sodium tetraphenylborate. After phase separation, the extract was directly transferred to analysis...
  83. de La Coussaye J, Bassoul B, Albat B, Peray P, Gagnol J, Eledjam J, et al. Experimental evidence in favor of role of intracellular actions of bupivacaine in myocardial depression. Anesth Analg. 1992;74:698-702 pubmed
    ..Atrial rate was decreased by 10.4% and contractile force was depressed by 13.6%.(ABSTRACT TRUNCATED AT 250 WORDS)..
  84. Cornelius F. Hydrophobic ion interaction on Na+ activation and dephosphorylation of reconstituted Na+,K(+)-ATPase. Biochim Biophys Acta. 1995;1235:183-96 pubmed
    ..The results are in accordance with the simple electrostatic model for charge translocation in which two negative charges in the cytoplasmic binding domain of the Na+,K(+)-ATPase co-migrate during cation transport...