Reaggregation of Sodium Alginate Microgel Structures After Shear-Induced Deaggregation at Filtering

Rendevski, Stojan; Andonovski, A.

doi:10.1007/s00289-005-0356-7

Cited by 12 publications

(4 citation statements)

References 4 publications

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“…However, when the strain amplitude was decreased (g ¼ 0.01%) at the same frequency, G 0 instantly recovered its initial value and the system returned to a quasi-solid (gel) state (tan d z 0.2). In fact, the shear recovery of the composite gels was extremely fast compared to pure alginate 32,46 and chitosan 45 gels, for which the reported shear recovery occurs over a longer period of time.…”

Section: Rheological Propertiesmentioning

confidence: 91%

A novel dual-structure, self-healable, polysaccharide based hybrid nanogel for biomedical uses

2011

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Notice: Changes introduced as a result of publishing processes such as copy-editing and formatting may not be reflected in this document. For a definitive version of this work, please refer to the published source. Please note that access to the published version might require a subscription. Chalmers Publication Library (CPL) offers the possibility of retrieving research publications produced at Chalmers University of Technology. It covers all types of publications: articles, dissertations, licentiate theses, masters theses, conference papers, reports etc. Since 2006 it is the official tool for Chalmers official publication statistics. To ensure that Chalmers research results are disseminated as widely as possible, an Open Access Policy has been adopted. The CPL service is administrated and maintained by Chalmers Library.

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Section: Rheological Propertiesmentioning

confidence: 91%

A novel dual-structure, self-healable, polysaccharide based hybrid nanogel for biomedical uses

2011

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“…This hole has dimensions that are ideal for the cooperative binding of calcium ions. When calcium ions are added to a sodium alginate solution, such an alignment of the G-blocks occurs; the calcium ions are bound between the two chains like eggs in an egg box [26]. Roger et al [27] reported the complete conversion of sodium alginate in to calcium alginate in about 10 min after addition of sodium alginate to calcium chloride solution.…”

Section: Preparation Of Chitosan-calcium (Cs/ca) Alginate Blended Beadsmentioning

confidence: 97%

Biosorption of phenol and o-chlorophenol from aqueous solutions on to chitosan–calcium alginate blended beads

Nadavala¹,

Kalyani²,

Boddu³

et al. 2009

Journal of Hazardous Materials

161

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“…Bead formation is driven by the interaction of calcium ions with the G-block regions of the polymer (Badwan et al, 1985) that complexes the calcium ions like egg box system (Rendevski and Andonovski, 2005;Roger et al, 2006).…”

Section: Preparation Of Alginate and Alginate-montmorillonite Beadsmentioning

confidence: 99%

The effect of montmorillonite clay in alginate gel beads for polychlorinated biphenyl adsorption: Isothermal and kinetic studies

Barreca

Orecchio

Pace

2014

Applied Clay Science

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Beads of alginate montmorillonite have been used as sorbent for polychlorinated biphenyls from aqueous solutions. The structure and the differences between the different beads were established by IR spectroscopy (FT-IR). The adsorption at 25°C has been studied in a batch system, following its kinetics and assessing adsorbent dose, initial PCB concentrations, and pH effects. The results show that increasing the initial concentration of the PCBs and the adsorption time favored the adsorption. Adsorption isotherm data were modeled using Chapman, Freundlich and Langmuir adsorption isotherms and the appropriate parameters were calculated. Adsorption of trichlorobiphenyls on alginate-montmorillonite beads followed a Freundlich isotherm type model, while adsorption of tetra-, penta-, and hexachlorobiphenyls displayed a sigmoid-shaped (S-type) isotherm fitting the Chapman sigmoidal equation with the highest non-linear R 2 values among the three tested models. By comparing the percentage adsorptions using the same number of beads (same volumes), best removals were obtained by using alginate montmorillonite beads. Kinetic models were investigated to determine the mechanism of adsorption showing a best fit for the pseudosecond order model (R 2 from 0.998 to 0.982). Moreover, to underline the effect of montmorillonite in alginate gel beads, we have compared the isothermal adsorption curves between alginate montmorillonite and alginate beads.

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Reaggregation of Sodium Alginate Microgel Structures After Shear-Induced Deaggregation at Filtering

Cited by 12 publications

References 4 publications

A novel dual-structure, self-healable, polysaccharide based hybrid nanogel for biomedical uses

A novel dual-structure, self-healable, polysaccharide based hybrid nanogel for biomedical uses

Biosorption of phenol and o-chlorophenol from aqueous solutions on to chitosan–calcium alginate blended beads

The effect of montmorillonite clay in alginate gel beads for polychlorinated biphenyl adsorption: Isothermal and kinetic studies

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