Effects of polymer architecture and charge density on the pH-responsive Ca(II) release from brushite

Yang, Taewook; Huh, Wansoo; Kong, Hyunjoon; Jho, Jae Young; Kim, Il Won

doi:10.1016/j.colsurfa.2014.06.045

Cited by 8 publications

(6 citation statements)

References 41 publications

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“…The number of repeating units of poly(acrylic acid) (PAA), poly(methacrylic acid) (PMAA), and poly(ethylene imine) (PEI) was 25, 25, and 30, respectively. After structural optimization in the same way for the calcite, 20 carboxylic acids and 3 primary amines were ionized according to the ionization degrees at pH 8: 0.8 for PAA and PMAA and 0.1 for PEI [23][24][25]. Specific functional groups in the polymer chains to be ionized were selected through random number generation using the RANDBETWEEN function of Microsoft Excel software.…”

Section: Methodsmentioning

confidence: 99%

Molecular Dynamics Simulation to Understand the Ability of Anionic Polymers to Alter the Morphology of Calcite

Choi

Kim

2017

International Journal of Polymer Science

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Molecular dynamics was utilized to investigate the ability of anionic macromolecules to drastically change the morphology of calcite in the presence of magnesium ions. Anionic poly(acrylic acid) and poly(methacrylic acid) were compared with cationic poly(ethylene imine) in their binding behavior on calcite (104) and (110) surfaces. Poly(acrylic acid) and poly(methacrylic acid) showed preferential binding on (110) with strong electrostatic attractions, whereas poly(ethylene imine) was only weakly attracted to (104). The extent of the charge imbalance on the surfaces appeared responsible for the current results, which originated from the deficient number of the coordinating oxygen atoms of carbonate around the surface calcium. The results of the current study were in accordance with the previous experimental observations, where the {hk0} surfaces of calcite were elongated under the coexistence of the anionic polymers and magnesium ions. These results could be generally utilized in the polymer-controlled crystallization with broad implications in the specific interactions with crystal surfaces.

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Section: Methodsmentioning

confidence: 99%

Molecular Dynamics Simulation to Understand the Ability of Anionic Polymers to Alter the Morphology of Calcite

Choi

Kim

2017

International Journal of Polymer Science

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“…The conformational shape of the backbone could be altered by the charge density of polyelectrolytes because of the repulsive force between same charges. The degree of expansion can be calculated using the following equation (eqn (1)): 47 R e = bN(uf 2 ) 2/7…”

Section: Guo Et Al Previously Monitored the Nucleation And Crystalmentioning

confidence: 99%

“…31 Here, the pH change in a hydrogel system was focused because it affects the chain conformation of anionic polyelectrolytes. 47,48 We speculated that the CaCO 3 structures could be controlled by manipulating the chain conformation of polyelectrolytes. As a result, spherical or elliptical CaCO 3 microparticles were formed using different transferring ions and PAA concentrations.…”

Section: Introductionmentioning

confidence: 99%

Effect of poly(acrylic acid) on crystallization of calcium carbonate in a hydrogel

2022

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“…In recent years, investigation into the stimulus-response polymer brush has involved biochemical, environmental biology and biomedical applications. This is owing to its ability to reversibly switch between adaptation and responsiveness via external stimulation, including temperature (15)(16)(17), pH value (18), ionic strength of the solvent (19,20) and light (21). A schematic diagram of polymer brushes is shown in Fig.…”

Section: Properties and Research Of Stimulus-response Polymer Brushesmentioning

confidence: 99%

“…pH-responsive polymer brushes. The height of pH-responsive polymer brushes (18) alters with environmental pH value, leading to the receipt or release of protons due to the ionizable groups in some polymers, including PAA, PMA, PDMAEMA and P4VP. This response relies on different properties of polymers; for example, the electrostatic repulsion between polymer chains or an alteration of solubility.…”

Section: Polymer Brushes and Their Possible Applications In Artificiamentioning

confidence: 99%

Polymer brushes and their possible applications in artificial cilia research

Zhu

Jiang

Zhong

et al. 2017

Molecular Medicine Reports

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The review aimed to assess the current research status of polymer brushes and artificial cilia, based on the analysis of polymer brush properties and the structure and function of natural cilia. The application of polymer brushes to develop artificial cilia has attracted increasing research interest, with rheological analysis often employed as an entry point for polymer mechanics. The present review assessed whether combing polymer brushes with artificial cilia, along with appropriate designing of high‑polymer materials and use of suitable equipment, may to the development of a polymer net‑structured material to imitate the morphology and functionality of a natural cilium system.

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Effects of polymer architecture and charge density on the pH-responsive Ca(II) release from brushite

Cited by 8 publications

References 41 publications

Molecular Dynamics Simulation to Understand the Ability of Anionic Polymers to Alter the Morphology of Calcite

Molecular Dynamics Simulation to Understand the Ability of Anionic Polymers to Alter the Morphology of Calcite

Effect of poly(acrylic acid) on crystallization of calcium carbonate in a hydrogel

Polymer brushes and their possible applications in artificial cilia research

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