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Journal articles on the topic 'Deprotonation/protonation of surfaces'

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1

Zhou, Peng, Hongna Zhang, Hongwei Ji, Wanhong Ma, Chuncheng Chen, and Jincai Zhao. "Modulating the photocatalytic redox preferences between anatase TiO2{001} and {101} surfaces." Chemical Communications 53, no. 4 (2017): 787–90. http://dx.doi.org/10.1039/c6cc08785j.

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2

KOYAMA, EMIKO, HIDEO TOKUHISA, ABDELHAK BELAISSAOUI, YOSHINOBU NAGAWA, MASATOSHI KANESATO та TAKAO ISHIDA. "CONSTRUCTION OF MOLECULAR SENSORS FOR PROTONS USING π-CONJUGATED MOLECULES". International Journal of Nanoscience 04, № 04 (2005): 475–81. http://dx.doi.org/10.1142/s0219581x05003589.

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The protonation/deprotonation response of a novel bipyridine containing (phenylene-ethynylene) thiol adsorbed to a Au surface was investigated with scanning tunneling microscopy (STM). STM results show reversible changes in the average heights (~50 spots) and the height distribution arising from protonation/deprotonation.
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3

Xiao, Duoduo, Siqi Zhang, Dengqing Zhang, et al. "Reversible transformation of self-assemblies and fluorescence by protonation–deprotonation in pyrimidinylene–phenylene macrocycles." Chemical Communications 52, no. 23 (2016): 4357–60. http://dx.doi.org/10.1039/c6cc00943c.

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4

Wang, Zhi-Tao, Yang-Gang Wang, Rentao Mu, et al. "Probing equilibrium of molecular and deprotonated water on TiO2(110)." Proceedings of the National Academy of Sciences 114, no. 8 (2017): 1801–5. http://dx.doi.org/10.1073/pnas.1613756114.

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Understanding adsorbed water and its dissociation to surface hydroxyls on oxide surfaces is key to unraveling many physical and chemical processes, yet the barrier for its deprotonation has never been measured. In this study, we present direct evidence for water dissociation equilibrium on rutile-TiO2(110) by combining supersonic molecular beam, scanning tunneling microscopy (STM), and ab initio molecular dynamics. We measure the deprotonation/protonation barriers of 0.36 eV and find that molecularly bound water is preferred over the surface-bound hydroxyls by only 0.035 eV. We demonstrate tha
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5

ARINGHIERI, R., and G. PARDINI. "PROTONATION OF SOIL PARTICLE SURFACES: KINETICS." Canadian Journal of Soil Science 65, no. 4 (1985): 677–86. http://dx.doi.org/10.4141/cjss85-073.

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A kinetic process was investigated by which H+ ions interact with soil surfaces giving rise to a positive electric charge distribution. A two-step process took place in the range of time examined. A first rapid step was always followed by a relatively slower step, and a first-order kinetic equation was applied to describe this second step of the process. The values of specific rate, calculated at different initial H+ ion activities and two different amounts of soil, indicated that a diffusion-controlled mechanism was governing the rate of the slower step and consequently the overall rate of th
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6

Werner, Josephina, Ingmar Persson, Olle Björneholm, et al. "Shifted equilibria of organic acids and bases in the aqueous surface region." Physical Chemistry Chemical Physics 20, no. 36 (2018): 23281–93. http://dx.doi.org/10.1039/c8cp01898g.

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7

Jiang, Tao, Xin Wang, Ge Wang, et al. "Light-activated “cycle-reversible intramolecular charge transfer” fluorescent probe: monitoring of pHi trace change induced by UV light in programmed cell death." Chemical Communications 55, no. 36 (2019): 5279–82. http://dx.doi.org/10.1039/c9cc01451a.

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8

Ma, Chunping, Bingjia Xu, Gaoyi Xie, et al. "An AIE-active luminophore with tunable and remarkable fluorescence switching based on the piezo and protonation–deprotonation control." Chem. Commun. 50, no. 55 (2014): 7374–77. http://dx.doi.org/10.1039/c4cc01012d.

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9

Khmeleva M. Yu., Laptinskiy K. A., Kasyanova P. S., Tomskaya A. E., and Dolenko T. A. "Dependence of photoluminescence of carbon dots with different surface functionalization on hydrogen factor of water." Optics and Spectroscopy 130, no. 6 (2022): 697. http://dx.doi.org/10.21883/eos.2022.06.54706.36-22.

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The pH dependences of the photoluminescence of carbon dots synthesized by the hydrothermal method with polyfunctional and monofunctional (carboxylated and hydroxylated) surfaces have been studied. As a result of the analysis of the obtained photoluminescence and absorption spectra of aqueous suspensions of all studied types of carbon dots at different pH values, a significant effect of the acidity of the environment of nanoparticles on their optical properties was found. It has been found that the greatest changes in the spectral characteristics of absorption and photoluminescence of carbon do
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10

Deibert, Benjamin J., and Jing Li. "A distinct reversible colorimetric and fluorescent low pH response on a water-stable zirconium–porphyrin metal–organic framework." Chem. Commun. 50, no. 68 (2014): 9636–39. http://dx.doi.org/10.1039/c4cc01938e.

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11

Hengge, Elisabeth, Markus Hirber, Philipp Brunner, Eva-Maria Steyskal, Bernd Nidetzky, and Roland Würschum. "Nanoporous gold electrodes modified with self-assembled monolayers for electrochemical control of the surface charge." Physical Chemistry Chemical Physics 23, no. 26 (2021): 14457–64. http://dx.doi.org/10.1039/d1cp01491a.

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Nanoporous gold is modified with self-assembled monolayers (SAMs) of different length. The point of zero charge and the protonation/deprotonation reaction are investigated revealing precise charge control for long-chain SAMs.
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12

Хмелева, М. Ю., К. А. Лаптинский, П. С. Касьянова, А. Е. Томская та Т. А. Доленко. "Зависимость фотолюминесценции углеродных точек с различной функционализацией поверхности от водородного показателя воды". Оптика и спектроскопия 130, № 6 (2022): 882. http://dx.doi.org/10.21883/os.2022.06.52630.36-22.

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The pH dependences of the photoluminescence of carbon dots synthesized by the hydrothermal method with polyfunctional and monofunctional (carboxylated and hydroxylated) surfaces have been studied. As a result of the analysis of the obtained photoluminescence and absorption spectra of aqueous suspensions of all studied types of carbon dots at different pH values, a significant effect of the acidity of the environment of nanoparticles on their optical properties was found. It has been found that the greatest changes in the spectral characteristics of absorption and photoluminescence of carbon do
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13

Qiu, Yinghua, Anna Dawid, and Zuzanna S. Siwy. "Experimental Investigation of Dynamic Deprotonation/Protonation of Highly Charged Particles." Journal of Physical Chemistry C 121, no. 11 (2017): 6255–63. http://dx.doi.org/10.1021/acs.jpcc.7b01919.

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14

Bolzon, Lucas Bomfim, and Alexandre G. S. Prado. "Effect of protonation and deprotonation on surface charge density of Nb2O5." Journal of Thermal Analysis and Calorimetry 106, no. 2 (2011): 427–30. http://dx.doi.org/10.1007/s10973-011-1316-0.

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15

LIU, LINGYUN, FANFEI MIN, FANGQIN LU, MINGXU ZHANG, and SHAOXIAN SONG. "A NOVEL METHOD FOR THE DETERMINATION OF THE POINT OF ZERO NET PROTON CHARGE OF COLLOIDAL KAOLINITE IN AQUEOUS SOLUTIONS." Surface Review and Letters 23, no. 04 (2016): 1650023. http://dx.doi.org/10.1142/s0218625x16500232.

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In this work, a novel method to determine the point of zero net proton charge (PZNPC) of colloidal kaolinite in aqueous solutions was presented through the measurement of zeta potential of the particles in various concentrations of NaCl solution and the mathematic regression of the zeta potential versus pH curves. This method is based on the observation that there are two common intersection points (CIP) in the two curves of zeta potential versus pH of colloidal kaolinite with a low and a high NaCl concentration. The observation might be attributed to that NaCl would compress the electric doub
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16

Burgess, Ian, Brian Seivewright, and R. Bruce Lennox. "Electric Field Driven Protonation/Deprotonation of Self-Assembled Monolayers of Acid-Terminated Thiols." Langmuir 22, no. 9 (2006): 4420–28. http://dx.doi.org/10.1021/la052767g.

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17

Zhang, Jibo, Jinlong Chen, Bin Xu, et al. "Remarkable fluorescence change based on the protonation–deprotonation control in organic crystals." Chemical Communications 49, no. 37 (2013): 3878. http://dx.doi.org/10.1039/c3cc41171k.

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18

Takada, Tomoya. "Removal of F− from Water Using Templated Mesoporous Carbon Modified with Hydrated Zirconium Oxide." C — Journal of Carbon Research 6, no. 1 (2020): 13. http://dx.doi.org/10.3390/c6010013.

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Three types of MgO-templated mesoporous carbon possessing different specific surface area and pore size distribution were modified with hydrated zirconium oxide (ZrO2·xH2O) to prepare fluoride anion (F−) adsorbents. ZrO2·xH2O was synthesized through the auto-hydrolysis of zirconium oxychloride (ZrOCl2) in water under the coexistence of mesoporous carbon. X-ray diffractometry (XRD) and X-ray photoelectron spectroscopy (XPS) indicated that the mesoporous carbon surfaces were coated with mainly amorphous ZrO2·xH2O. Capabilities of aqueous F− removal of the prepared adsorbents and the unmodified m
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19

Messina, Grazia Maria Lucia, Marta De Zotti, Alvaro S. Siano, Claudia Mazzuca, Giovanni Marletta, and Antonio Palleschi. "Dimer Is Not Double: The Unexpected Behavior of Two-Floor Peptide Nanosponge." Molecules 30, no. 1 (2024): 47. https://doi.org/10.3390/molecules30010047.

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Using the framework of an investigation of the stimuli-responsive behavior of peptide assembly on a solid surface, this study on the behavior of a chemisorbed peptide on a gold surface was performed. The studied peptide is a dimeric form of the antimicrobial peptide Trichogin GAIV, which was also modified by substituting the glycine with lysine residues, while the N-terminus octanoyl group was replaced by a lipoic one that was able to bind to the gold surface. In this way, a chemically linked peptide assembly that is pH-responsive was obtained because of the protonation/deprotonation of the si
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20

Zhang, Chenhao, Anthony Z. Gao, Xin Nie та ін. "Catalytic α-Deracemization of Ketones Enabled by Photoredox Deprotonation and Enantioselective Protonation". Journal of the American Chemical Society 143, № 33 (2021): 13393–400. http://dx.doi.org/10.1021/jacs.1c06637.

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21

Kolomiets, Elena, Volker Berl, Ibon Odriozola, Adrian-Mihail Stadler, Nathalie Kyritsakas, and Jean-Marie Lehn. "Contraction/extension molecular motion by protonation/deprotonation induced structural switching of pyridine derived oligoamides." Chemical Communications, no. 23 (2003): 2868. http://dx.doi.org/10.1039/b311578j.

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22

Rumfeldt, Jessica, Moona Kurttila, Heikki Takala, and Janne A. Ihalainen. "The hairpin extension controls solvent access to the chromophore binding pocket in a bacterial phytochrome: a UV–vis absorption spectroscopy study." Photochemical & Photobiological Sciences 20, no. 9 (2021): 1173–81. http://dx.doi.org/10.1007/s43630-021-00090-2.

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AbstractSolvent access to the protein interior plays an important role in the function of many proteins. Phytochromes contain a specific structural feature, a hairpin extension that appears to relay structural information from the chromophore to the rest of the protein. The extension interacts with amino acids near the chromophore, and hence shields the chromophore from the surrounding solvent. We envision that the detachment of the extension from the protein surface allows solvent exchange reactions in the vicinity of the chromophore. This can facilitate for example, proton transfer processes
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23

Farha, Trisha Diba, Samyoung Kim, Mieko Imayasu, and Hidekazu Tsutsui. "Voltage Mediated Control of Fluorescence Protein Emissions at the Metal-Solution Interface." Materials Science Forum 1056 (March 14, 2022): 27–32. http://dx.doi.org/10.4028/p-k21iuv.

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The fluorescence protein technologies have made remarkable contributions to the advancement of life science. Accordingly, the physicochemical properties of fluorescence proteins have been deeply investigated in the bulk solution that mimics the cellular environment, but those at the less common environment such as surface and interface have not been deeply investigated. We recently found the phenomenon that the fluorescence protein immobilized at the metal-solution interface exhibits voltage-dependent photoluminescence. Upon the blue light photoexcitation of Venus, a yellow-emitting variant of
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24

Patni, Divya, and Santosh Kumar Jha. "Protonation–Deprotonation Switch Controls the Amyloid-like Misfolding of Nucleic-Acid-Binding Domains of TDP-43." Journal of Physical Chemistry B 125, no. 30 (2021): 8383–94. http://dx.doi.org/10.1021/acs.jpcb.1c03262.

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25

Khorwal, Vijaykant, Biswajit Sadhu, Arghya Dey, Mahesh Sundararajan, and Anindya Datta. "Modulation of Protonation–Deprotonation Processes of 2-(4′-Pyridyl)benzimidazole in Its Inclusion Complexes with Cyclodextrins." Journal of Physical Chemistry B 117, no. 28 (2013): 8603–10. http://dx.doi.org/10.1021/jp403476n.

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26

Boyd, Susan L., Russell J. Boyd, Paul W. Bessonette, Denise I. Kerdraon, and Nicole T. Aucoin. "A Theoretical Study of the Effects of Protonation and Deprotonation on Bond Dissociation Energies." Journal of the American Chemical Society 117, no. 34 (1995): 8816–22. http://dx.doi.org/10.1021/ja00139a015.

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27

Roston, Daniel, Darren Demapan, and Qiang Cui. "Extensive free-energy simulations identify water as the base in nucleotide addition by DNA polymerase." Proceedings of the National Academy of Sciences 116, no. 50 (2019): 25048–56. http://dx.doi.org/10.1073/pnas.1914613116.

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Transphosphorylation of nucleotide triphosphates is the central reaction in DNA replication by DNA polymerase as well as many other biological processes. Despite its importance, the microscopic chemical mechanism of transphosphorylation of nucleotide triphosphates is, in most cases, unknown. Here we use extensive simulations of DNA polymerase η to test mechanistic hypotheses. We systematically survey the reactive space by calculating 2D free-energy surfaces for 10 different plausible mechanisms that have been proposed. We supplement these free-energy surfaces with calculations of pKa for a num
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28

Adamescu, Adrian, Holly Gray, Katherine M. E. Stewart, I. P. Hamilton та Hind A. Al-Abadleh. "Trends in the frequencies of ν(AsOxHx–1) [x = 2–4] in selected As(V)-containing compounds investigated using quantum chemical calculations". Canadian Journal of Chemistry 88, № 1 (2010): 65–77. http://dx.doi.org/10.1139/v09-147.

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The application of computational chemistry to studies in geochemistry is increasingly becoming invaluable in explaining experimentally observed trends for surface interactions of pollutants with sorbents ubiquitous in the environment. We report computational results on factors that affect the force constant of AsOx bonds in As(V)-containing compounds relevant to geochemical environments. Geometries, atomic charges, and stretching frequencies of –AsOxHx–1 (x = 2– 4) moieties in these molecules were calculated using semi-empirical methods (PM3) and density functional theory (B3LYP) for both isol
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29

Guo, Lin, and Ying-qiu Liang. "pH-controlled location and metalation of an amphiphilic porphyrin in sodium dodecyl sulfate micelle." Canadian Journal of Chemistry 80, no. 12 (2002): 1655–61. http://dx.doi.org/10.1139/v02-180.

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5,10,15-Tri(4-hydroxyphenyl)-20-(4-hexadecyloxyphenyl)porphyrin (P) was solubilized in sodium dodecyl sulfate (SDS) micelle solutions. Taking advantage of the protonation and deprotonation properties of the amphiphilic porphyrin allowed the study of the pH-controlled transfer process of P in SDS micelle by means of UV–vis and fluorescence spectra. In neutral SDS micelle, P may be protonated and located at the outer surface of the micelle. In mildly basic conditions the hydrophilic ability of P decreases and the porphyrin moiety may transfer to the inner layer of SDS micelle. In strong basic co
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30

Mulligan, Steven, Jesús J. Ojeda, Gabriella Kakonyi, Steven F. Thornton, Keyvan Moharamzadeh, and Nicolas Martin. "Characterisation of Microparticle Waste from Dental Resin-Based Composites." Materials 14, no. 16 (2021): 4440. http://dx.doi.org/10.3390/ma14164440.

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Clinical applications of resin-based composite (RBC) generate environmental pollution in the form of microparticulate waste. Methods: SEM, particle size and specific surface area analysis, FT-IR and potentiometric titrations were used to characterise microparticles arising from grinding commercial and control RBCs as a function of time, at time of generation and after 12 months ageing in water. The RBCs were tested in two states: (i) direct-placement materials polymerised to simulate routine clinical use and (ii) pre-polymerised CAD/CAM ingots milled using CAD/CAM technology. Results: The maxi
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31

Gilbert, Thomas M., and Robert G. Bergman. "Synthesis of trimethylphosphine-substituted (pentamethylcyclopentadienyl)iridium hydride complexes; protonation and deprotonation of (pentamethylcyclopentadienyl)(trimethylphosphine)iridium dihydride." Journal of the American Chemical Society 107, no. 12 (1985): 3502–7. http://dx.doi.org/10.1021/ja00298a017.

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32

Yoon, Subhin, Dong-gyu Lee, Seokmin Shin, Yongdae Lee, and Hyun-Kon Song. "pH-Dependent Oxygen Reduction on Metal Monoxide/Polypyrrole Hybrid Catalysts." ECS Meeting Abstracts MA2024-02, no. 56 (2024): 3764. https://doi.org/10.1149/ma2024-02563764mtgabs.

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The oxygen reduction reaction (ORR) is at the heart of many such fuel cell devices and holds a special place in the field of electrocatalysis, but it is notoriously slow. Various studies in the past decade have focused on determining a method to reduce the over potential of ORR and to replace the conventional costly Pt catalyst in both types of fuel cells. Theoretical approaches have been reported that dual-catalyst system in which two catalysts work simultaneously to decrease specific adsorption energies of intermediates, resultantly, linear scaling relationship were circumvented, could be an
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33

Chen, Licai, Yunliang Zhao, Haoyu Bai, Tong Wen, Zhong Ai, and Shaoxian Song. "Effect of protonation and deprotonation reactions of clay on regulating pyrite flotation in the presence of clay." Colloids and Surfaces A: Physicochemical and Engineering Aspects 609 (January 2021): 125654. http://dx.doi.org/10.1016/j.colsurfa.2020.125654.

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34

Huang, Junyang, David-Benjamin Grys, Jack Griffiths, et al. "Tracking interfacial single-molecule pH and binding dynamics via vibrational spectroscopy." Science Advances 7, no. 23 (2021): eabg1790. http://dx.doi.org/10.1126/sciadv.abg1790.

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Understanding single-molecule chemical dynamics of surface ligands is of critical importance to reveal their individual pathways and, hence, roles in catalysis, which ensemble measurements cannot see. Here, we use a cascaded nano-optics approach that provides sufficient enhancement to enable direct tracking of chemical trajectories of single surface-bound molecules via vibrational spectroscopy. Atomic protrusions are laser-induced within plasmonic nanojunctions to concentrate light to atomic length scales, optically isolating individual molecules. By stabilizing these atomic sites, we unveil s
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35

Watanabe, Daisuke, and Hiro-o. Hamaguchi. "Ultrafast Protonation/Deprotonation Dynamics of N,N-Dimethylacetamide in Hydrochloric Acid As Studied by Raman Band Shape Analysis." Journal of Physical Chemistry C 113, no. 27 (2009): 11662–66. http://dx.doi.org/10.1021/jp9014993.

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36

Neti, Syam Sundar, Jian-Jung Pan, and C. Dale Poulter. "Mechanistic Studies of the Protonation–Deprotonation Reactions for Type 1 and Type 2 Isopentenyl Diphosphate:Dimethylallyl Diphosphate Isomerase." Journal of the American Chemical Society 140, no. 40 (2018): 12900–12908. http://dx.doi.org/10.1021/jacs.8b07274.

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37

Pannwitz, Andrea, and Oliver S. Wenger. "Photoinduced Electron Transfer Coupled to Donor Deprotonation and Acceptor Protonation in a Molecular Triad Mimicking Photosystem II." Journal of the American Chemical Society 139, no. 38 (2017): 13308–11. http://dx.doi.org/10.1021/jacs.7b08761.

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38

Ueno, Ryota, and Hiroshi Yao. "Influence of Surface Protonation–Deprotonation Stimuli on the Chiroptical Responses of (R)-/(S)-Mercaptosuccinic Acid-protected Gold Nanoclusters." Chemistry Letters 44, no. 2 (2015): 171–73. http://dx.doi.org/10.1246/cl.140953.

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39

Wang, Zhen, Guanglong Ma, Juan Zhang, et al. "Surface protonation/deprotonation controlled instant affinity switch of nano drug vehicle (NDV) for pH triggered tumor cell targeting." Biomaterials 62 (September 2015): 116–27. http://dx.doi.org/10.1016/j.biomaterials.2015.05.020.

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40

Li, Ye-Xin, Cun-Zhao Zhu, Zhen-Feng Yu, et al. "Protonation–Deprotonation Treatment Modulating the Aggregate Structure and Fluorescence Property of (9-Anthryl)vinyl(4-pyridyl)vinylbenzene Position Isomers." Journal of Physical Chemistry C 123, no. 10 (2019): 6167–75. http://dx.doi.org/10.1021/acs.jpcc.8b11254.

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41

Aghazadeh, Valeh, Shima Barakan, and Ehsan Bidari. "Determination of surface protonation-deprotonation behavior, surface charge, and total surface site concentration for natural, pillared and porous nano bentonite heterostructure." Journal of Molecular Structure 1204 (March 2020): 127570. http://dx.doi.org/10.1016/j.molstruc.2019.127570.

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42

Ren, Hang, Cameron G. Cheyne, Aaron M. Fleming, Cynthia J. Burrows, and Henry S. White. "Single-Molecule Titration in a Protein Nanoreactor Reveals the Protonation/Deprotonation Mechanism of a C:C Mismatch in DNA." Journal of the American Chemical Society 140, no. 15 (2018): 5153–60. http://dx.doi.org/10.1021/jacs.8b00593.

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43

Qiu, Sen, Tingsheng Qiu, Huashan Yan, et al. "Investigation of protonation and deprotonation processes of kaolinite and its effect on the adsorption stability of rare earth elements." Colloids and Surfaces A: Physicochemical and Engineering Aspects 642 (June 2022): 128596. http://dx.doi.org/10.1016/j.colsurfa.2022.128596.

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44

Kilina, Svetlana V., Dinesh Thapa, and Victoria Oas. "Effect of Amino Acids Used As Intercalating Agents on Electro-Magnetic Properties of Montmorillonite Clay Nanostructures." ECS Meeting Abstracts MA2024-01, no. 33 (2024): 1626. http://dx.doi.org/10.1149/ma2024-01331626mtgabs.

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Layered clay minerals, such as montmorillonite (MMT) with a chemical formula (FeMg)0.25Al1.5Si4O10(OH)2.nH2O, belong to non-toxic, natural, low-cost, abundant materials. Usage of unnatural amino acids (AA) with COOH-CH-NH2 moiety as intercalating agents results in formation of clay nanoplatelets of about 1 nm in thickness. Such organically modified MMT nanostructures (nano-MMT) have improved dispersion, mechanical, flame retardancy, thermal, transport, biocompatibility, and biodegradability properties, making them suitable for tissue engineering. Using first-principle calculations based on the
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45

Cunha, Jailson Cavalcante, Hugo Alberto Ruiz, Maria Betânia Galvão dos Santos Freire, Víctor Hugo Alvarez V., and Raphael Bragança Alves Fernandes. "Quantification of permanent and variable charges in reference soils of the State of Pernambuco, Brazil." Revista Brasileira de Ciência do Solo 38, no. 4 (2014): 1162–69. http://dx.doi.org/10.1590/s0100-06832014000400012.

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The electrical charges in soil particles are divided into structural or permanent charges and variable charges. Permanent charges develop on the soil particle surface by isomorphic substitution. Variable charges arise from dissociation and association of protons (H+), protonation or deprotonation, and specific adsorption of cations and anions. The aim of this study was to quantify the permanent charges and variable charges of Reference Soils of the State of Pernambuco, Brazil. To do so, 24 subsurface profiles from different regions (nine in the Zona da Mata, eight in the Agreste, and seven in
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46

Yang, Meirong, Mandula Buren, Long Chang, and Yingchun Zhao. "Time periodic electroosmotic flow in a pH-regulated parallel-plate nanochannel." Physica Scripta 97, no. 3 (2022): 030003. http://dx.doi.org/10.1088/1402-4896/ac52f9.

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Abstract In this paper, the separation of variables method is applied to investigate the effects of solution pH, background salt concentration and AC electric field frequency on time periodic electroosmotic flow in a pH-regulated parallel-plate nanochannel. The surface charge is generated by the protonation and deprotonation of the functional group SiOH. The background salt is KCl. The pH value of the solution is adjusted by HCl and KOH. Analytical and semi-analytical solutions for electric potential and velocity distributions are obtained. The results show that the electric potential caused b
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47

Taylor, Zane, and Marcelo Marucho. "The Self-Adaptation Ability of Zinc Oxide Nanoparticles Enables Reliable Cancer Treatments." Nanomaterials 10, no. 2 (2020): 269. http://dx.doi.org/10.3390/nano10020269.

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Optimal procedures for reliable anti-cancer treatments involve the systematic delivery of zinc oxide nanoparticles, which spread through the circulatory system. The success of these procedures may largely depend on the NPs’ ability of self-adapting their physicochemical properties to overcome the different challenges facing at each stage on its way to the interior of a cancerous cell. In this article, we combine a multiscale approach, a unique nanoparticle model, and available experimental data to characterize the behavior of zinc oxide nanoparticles under different vessels rheology, pH levels
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48

Khorwal, Vijaykant, Uma Nudurupati, Sohidul Islam Mondal, and Anindya Datta. "Interplay of Hydrophobic and Electrostatic Interactions in Modulation of Protonation–Deprotonation Equilibria of Two Positional Isomers in Their Complexes with Cucurbiturils." Journal of Physical Chemistry C 121, no. 9 (2017): 5379–88. http://dx.doi.org/10.1021/acs.jpcc.6b13006.

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Maeda, Hiromitsu, Yuichi Ishikawa, Tomoyuki Matsuda, Atsuhiro Osuka, and Hiroyuki Furuta. "Control of Cu(II) and Cu(III) States in N-Confused Porphyrin by Protonation/Deprotonation at the Peripheral Nitrogen." Journal of the American Chemical Society 125, no. 39 (2003): 11822–23. http://dx.doi.org/10.1021/ja0356075.

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Kang, E. T., Z. F. Li, K. G. Neoh, Y. Q. Dong, and K. L. Tan. "Protonation and deprotonation of polyaniline films and powders: effects of acid and base concentrations on the surface intrinsic oxidation states." Synthetic Metals 92, no. 2 (1998): 167–71. http://dx.doi.org/10.1016/s0379-6779(98)80107-0.

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