Interaction of sodium and calcium ions with poly(alkylene phosphate)—a synthetic analogue of natural teichoic acids
文献信息
The competitive binding of sodium and calcium ions to poly(alkylene phosphate)s, which can be considered as synthetic models of bacterial teichoic acids, and to poly(styrenesulfonate)s was studied experimentally by potentiometry with ion-selective electrodes. The fractions of apparently free counterions, ffi, were determined and compared with theoretical predictions obtained from the Poisson–Boltzmann theory applied to the cylindrical cell model of polyelectrolyte solutions containing a mixture of counterions differing in charge. For the studied systems, the dependence of ffNa and ffCa on the composition of the counterion mixture and on a charge density parameter of the polyion was found to be fairly well described by theory. For poly(alkylene phosphate)s the calculated values of ffi noticeably exceeded the measured fractions of apparently free ions. Much better agreement between theory and experiment was obtained if the effective value of the charge density parameter was used.
相关文献
Continuous microfluidic synthesis of colloidal ultrasmall gold nanoparticles: in situ study of the early reaction stages and application for catalysis
Ghazal Tofighi, Jan Pesek, Wu Wang, Ludger Schöttner, Günter Rinke, Roland Dittmeyer
DOI: 10.1039/C7RE00114B
Oxygen sensors for flow reactors – measuring dissolved oxygen in organic solvents
DOI: 10.1039/C9RE00253G
Heterogeneous palladium-based catalyst promoted reduction of oximes to amines: using H2 at 1 atm in H2O under mild conditions
Yaxu Liu, Ziyi Quan, Shaopo He, Zexi Zhao, Jiang Wang
DOI: 10.1039/C9RE00003H
Application of modulation excitation-phase sensitive detection-DRIFTS for in situ/operando characterization of heterogeneous catalysts
Hongda Zhu
DOI: 10.1039/C9RE00011A
Green and catalyst-free synthesis of deoxyarbutin in continuous-flow
Xiaoxuan Xie, Shitian Xie, Hongmiao Yao, Xin Ye, Zhiqun Yu
DOI: 10.1039/C9RE00084D
Impact of cation redox chemistry on continuous hydrothermal synthesis of 2D-Ni(Co/Fe) hydroxides
Massimo Rosa, Debora Marani, Giovanni Perin, Søren Bredmose Simonsen, Philipp Zielke, Antonella Glisenti, Ragnar Kiebach, Andreas Lesch, Vincenzo Esposito
DOI: 10.1039/C9RE00334G
Using batch reactor results to calculate optimal flow rates for the scale-up of UV photochemical reactions
L. D. Elliott, J. P. Knowles, C. S. Stacey, D. J. Klauber, K. I. Booker-Milburn
DOI: 10.1039/C7RE00193B
Outstanding Reviewers for Reaction Chemistry & Engineering in 2018
DOI: 10.1039/C9RE90020A
Microfluidic approaches for accessing thermophysical properties of fluid systems
Nicolas Pannacci, Ghislain Bergeot, Claire Marliere, Samuel Marre
DOI: 10.1039/C9RE00130A
Flow mediated metal-free PET-RAFT polymerisation for upscaled and consistent polymer production
Leonid Zhernakov, Muhammad Hazim Hashim
DOI: 10.1039/C9RE00014C
您可能还喜欢
2-(甲基磺酰基)嘧啶-5-胺(CAS号:56621-92-2)适用哪些法规指南?
该化合物适用的法规指南包括GHS(全球化学品统一分类和标签制度)分类为特定目标器官毒性-单次接触类别3;根据欧盟REACH法规,该化合物需要进行注册和评估;在美...
在合成中是否有4-(4-氯苯基)-1H-咪唑(CAS号:35512-29-9)的替代品?
在合成中,可以考虑使用一些类似的化合物作为4-(4-氯苯基)-1H-咪唑的替代品,如4-(4-溴苯基)-1H-咪唑或4-(4-甲氧基苯基)-1H-咪唑。这些化合...
什么是N~2~-甲基丙氨酸酰胺(CAS号:32012-16-1)?
N~2~-甲基丙氨酸酰胺是一种有机化合物,其化学名为2-(Methylamino)propanamide。它是一种酰胺类化合物,分子式为C4H10N2O,相对分...
如何处理含有N-苄基-3-氨基氧杂环丁烷草酸盐(CAS号:1956341-96-0)的废料?
处理含有N-苄基-3-氨基氧杂环丁烷草酸盐(CAS号:1956341-96-0)的废料时,应首先确保遵循相关法规要求,如GHS和REACH等。通常,废液应先进行...
4-bromo-2-chloro-6-methylbenzoic acid(CAS号:877149-07-0)的物理化学性质是什么?
4-溴-2-氯-6-甲基苯甲酸是一种固体化合物,具有较高的熔点和较低的沸点。它的分子量为261.03 g/mol。该化合物在水中几乎不溶,在有机溶剂中溶解度适中...
2-[(2,5-二氯-4-嘧啶)氨基]-N-甲基苯甲酰胺(CAS号:761440-08-8)通常如何合成?
该化合物通常通过缩合反应合成,典型的方法是将2,5-二氯嘧啶与N-甲基苯甲酰胺在碱性条件下进行偶联反应。常用的碱包括NaH、LDA等强碱。该合成路线具有较高的选...
在合成中是否有3,5-二溴-4-甲基苯胺(CAS号:13194-73-5)的替代品?
3,5-二溴-4-甲基苯胺在某些合成路线中可能没有直接替代品。然而,在某些应用场景下,可以考虑使用其他类似结构的化合物如3,5-二溴-4-硝基苯胺或3,5-二碘...
2-氯喹啉-4-羧酸甲酯(CAS号:62482-26-2)的主要用途是什么?
2-氯喹啉-4-羧酸甲酯主要用于有机合成和药物合成领域,作为中间体或原料。它在合成某些药物和染料时具有重要作用。此外,该化合物还可能用于某些特定的化学研究中。
i>]吡啶(CAS号:474708-88-8)安全吗?
6-溴-8-氯咪唑[1,2-a]吡啶在操作过程中需要谨慎以确保安全。该化合物具有一定的毒性,吸入其蒸气或粉尘可能导致呼吸道刺激。处理时应佩戴适当的防护装备,如手...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.













![(3R)-3-(3-Fluorophenyl)-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)propanoic acid structure (3R)-3-(3-Fluorophenyl)-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)propanoic acid structure](https://cnstatic.chemtradehub.com/structs/500/500789-04-8-20dd.webp)
