scholarly journals Self‐Assembling Supramolecular Hybrid Hydrogel Beads

2019 ◽  
Vol 132 (2) ◽  
pp. 863-869 ◽  
Author(s):  
Carmen C. Piras ◽  
Petr Slavik ◽  
David K. Smith
Keyword(s):  
Hybrid Hydrogel ◽  
Hydrogel Beads ◽  
Self Assembling

scholarly journals Self‐Assembling Supramolecular Hybrid Hydrogel Beads

2020 ◽  
Vol 59 (2) ◽  
pp. 853-859 ◽  
Author(s):  
Carmen C. Piras ◽  
Petr Slavik ◽  
David K. Smith
Keyword(s):  
Hybrid Hydrogel ◽  
Hydrogel Beads ◽  
Self Assembling

scholarly journals Isolation of Circulating Biomarkers for Liquid Biopsy using Immunoaffinity‐Based Stimuli‐Responsive Hybrid Hydrogel Beads

2021 ◽  
Author(s):  
Yoon-Tae Kang ◽  
Young Jun Kim ◽  
Brittany Rupp ◽  
Emma Purcell ◽  
Thomas Hadlock ◽  
...  
Keyword(s):  
Liquid Biopsy ◽  
Stimuli Responsive ◽  
Circulating Biomarkers ◽  
Hybrid Hydrogel ◽  
Hydrogel Beads

scholarly journals Nanoporous Sodium Carboxymethyl Cellulose-g-poly (Sodium Acrylate)/FeCl3 Hydrogel Beads: Synthesis and Characterization

Gels ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 49
Author(s):  
Bijender Kumar ◽  
Ruchir Priyadarshi ◽  
Sauraj ◽  
Farha Deeba ◽  
Anurag Kulshreshtha ◽  
...  
Keyword(s):  
Carboxymethyl Cellulose ◽  
Sodium Carboxymethyl Cellulose ◽  
Sodium Acrylate ◽  
X Ray Diffraction ◽  
Hybrid Hydrogel ◽  
X Ray ◽  
Hydrogel Beads ◽  
Force Microscopy ◽  
Atomic Force ◽  
Potential Applications

Novel sodium carboxymethyl cellulose-g-poly (sodium acrylate)/Ferric chloride (CMC-g-PNaA/FeCl3) nanoporous hydrogel beads were prepared based on the ionic cross-linking between CMC-g-PNaA and FeCl3. The structure of CMC and CMC-g-PNaA were elucidated by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy, and the elemental composition was analyzed by energy dispersive X-ray analysis (EDX). The physicochemical properties of the CMC-g-PNaA/FeCl3 hydrogel beads were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM) and thermogravimetric analysis (TGA). The swelling percentage of hydrogel beads was studied at different time periods. The obtained CMC-g-PNaA/FeCl3 hydrogel beads exhibited a higher nanoporous morphology than those of CMC-g-PNaA and CMC beads. Furthermore, an AFM image of the CMC-g-PNaA/FeCl3 beads shows granule type topology. Compared to the CMC-g-PNaA (189 °C), CMC-g-PNaA/FeCl3 hydrogel beads exhibited improvement in thermal stability (199 °C). Furthermore, CMC-g-PNaA/FeCl3 hydrogel beads depicted a higher swelling percentage capacity of around 1452%, as compared to CMC-g-PNaA (1096%). Moreover, this strategy with preliminary results could be useful for the development of polysaccharide-based hybrid hydrogel beads for various potential applications.

Enhanced mechanical stability and sensitive swelling performance of chitosan/yeast hybrid hydrogel beads

2016 ◽  
Vol 40 (4) ◽  
pp. 3350-3362 ◽  
Author(s):  
Diejing Feng ◽  
Bo Bai ◽  
Honglun Wang ◽  
Yourui Suo
Keyword(s):  
Mechanical Stability ◽  
Hybrid Hydrogel ◽  
Hydrogel Beads ◽  
Chitosan Hydrogels ◽  
Yeast Hybrid

Up to the present time, improving the mechanical stability of hydrogel beads is still a challenging task for future applications of chitosan hydrogels.

scholarly journals Survival and Behavior of Encapsulated Probiotics (Lactobacillus plantarum) in Calcium-Alginate-Soy Protein Isolate-Based Hydrogel Beads in Different Processing Conditions (pH and Temperature) and in Pasteurized Mango Juice

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ong-Ard Praepanitchai ◽  
Athapol Noomhorm ◽  
Anil Kumar Anal
Keyword(s):  
Lactobacillus Plantarum ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Heat Processing ◽  
Hybrid Hydrogel ◽  
Hydrogel Beads ◽  
Acidic Conditions ◽  
Mango Juice ◽  
And Behavior

Hybrid alginate-soy protein isolate-based hydrogel beads were prepared and evaluated to enhance the survival of the encapsulated probiotics (Lactobacillus plantarum) during heat processing to incorporate in mango juice. The solutions of sodium alginate-soy protein isolate (SA-SPI) with probiotic cells were dropped into the gelation bath containing calcium chloride (3% w/v) solution to develop various types of hydrogel beads. The level of survival of probiotics in encapsulated beads under acidic conditions (pH 2, 3, and 6.5) and bile salt (0.5 and 1.0% w/v) was evaluated. The survival of the encapsulated probiotics to thermal processing was evaluated by treating the beads in saline solution (0.9% w/v) at 30, 50, 63, and 72°C. The encapsulated probiotic bacteria were found alive even after treatment at 72°C for 90 s. Most of the free cells did not survive at the temperature higher than 50°C and very low pH (pH 2 and 3). The survival of probiotic cells was found higher with the hybrid hydrogel beads containing alginate and soy protein isolate (1:8 w/w). Furthermore, mango juice fortified with encapsulated L. plantarum in hydrogel beads was subjected to thermal pasteurization at 72°C for 90 s.

COMPACTIVITY OF CELL COLONIES-RELATIONS BETWEEN LIVING CELLS INSIDE POLYMER HYDROGEL BEADS

2010 ◽  
Vol 24 (06n07) ◽  
pp. 813-824 ◽  
Author(s):  
M. B. PLAVSIC ◽  
I. PAJIC-LIJAKOVIC ◽  
M. M. PLAVSIC
Keyword(s):  
Volume Fraction ◽  
Living Cells ◽  
Polymer Hydrogel ◽  
Hydrogel Beads ◽  
Self Assembling ◽  
Phase Transition Temperatures ◽  
Polymer Bead ◽  
Characteristic Values ◽  
State Of Matter ◽  
Theory And Experiments

The system of living cells closed in a polymer bead as a matrix is considered in formalism of lattice model extended with compactivity concept developed for complex systems in statistical mechanics of jammed state of matter. Possibility of extension of Edwards concept of compactivity developed for hard irregular grains with friction to living cell systems, is considered if function of cell interactions and properties. Existence of critical points in the course of cell colony grow related to their self assembling and response to polymer hydrogel micro-environment resistance, is analyzed in function of cell volume fraction growth. Based on the theory and experiments it is related to characteristic values of compactivity in analogy to phase transition temperatures. Interpretation of data from literature on cancer cell cluster growth suppression under pressure of microenvironment on the base of model proposed is offered.

Photoresponsive hybrid hydrogel with a dual network of agarose and a self-assembling peptide

Soft Matter ◽  
2020 ◽  
Vol 16 (31) ◽  
pp. 7299-7304
Author(s):  
Benedikt P. Nowak ◽  
Bart Jan Ravoo
Keyword(s):  
Shape Memory ◽  
Rheological Properties ◽  
Hybrid Hydrogel ◽  
Self Assembling

A dual network of a photoswitchable self-assembling peptide and agarose provides a robust hydrogel with photoresponsive rheological properties and shape memory.

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