In this study, a microstructure of a range of stable aqueous solutions and dispersions (agar, kaolin, montmorillonite, nanoparticles) was investigated by means of cryo-SEM and confocal LSM in order to compare cryo-fixed and unfrozen structures.

Jul 1, 2022 · Fourier transform infrared spectroscopy and carbon nuclear magnetic resonance analyses showed that succinic anhydride could be mono-succinylated, cross-linked, and desulfurized with agar. The transition from mono-succinylation to cross-linking of agar was achieved by attemperation.

Cryo–SEM membrane observations of (a) 3.3% (by mass) plain CS–ItA–LCys gel (b) 3% (by mass) plain agar gel. Membrane thickness is indicated with purple double arrows. A close-up of the agar membrane is observed in the purple square (c).

Mar 1, 2017 · The microstructure of agar gels prepared from samples extracted of the same solution after different incubation times T at 80 °C is investigated by cryo-Scanning Electron Microscopy (cryo-SEM). Agar gels are prepared in Petri dishes left to cool at room temperature, i.e. T = (22 ± 2)°C.

In this study, a microstructure of a range of stable aqueous solutions and dispersions (agar, kaolin, montmorillonite, nanoparticles) was investigated by means of cryo‐SEM and confocal LSM in...

Low-temperature SEM is used to examine the internal structure of these gels in their frozen natural hydrated states. Results of this study show that both polymers have an array of hollow cells that resembles honeycomb structures.

Jan 11, 2024 · A Fourier-transformed (FT) infrared spectroscopy characterization is performed, completed with rheological measurements and Cryo-Scanning Electron Microscopy (cryo-SEM) to investigate the physico-chemical properties of the gels, …

Jun 15, 2022 · The results showed concurrence of structural features observed by cryo-SEM and confocal LSM measurements for agar gel, mineral (montmorillonite and kaolin) clays, and NPs hydrocolloid.

We now report the synthesis and detailed structural, rheological and electrical characterizations of supramolecular gels obtained by self-assembly of a dicationic low molecular weight gelator...

Jul 1, 2020 · Thus, in this paper, a series of agar/κ-carrageenan mixed hydrogels with different mass ratios were prepared. And their physicochemical properties were characterized by the measurements of gelling temperature, gel melting temperature, gel strength, apparent viscosity, texture and Cryo-SEM.