On-Chip Fabrication of Carbon Nanoparticle–Chitosan Composite Membrane

Ding, Weiping; Cheng, Liang; Sun, Shaoli; He, Liqun; Gao, Dayong

doi:10.1016/j.jmst.2015.09.004

Cited by 9 publications

(2 citation statements)

References 49 publications

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“…Interestingly, while the membrane thickness between the upstream versus downstream membranes by electrofabrication was similar, this was not the case for the flow-assembled membranes. Figure 8 C(ii) shows that the upstream membranes were thicker while the downstream membranes were thinner, which was in agreement with our previous study due to the reduction in available chitosan molecules along the membrane growth front from upstream to downstream of flow [ 55 ]. Overall, the membrane thickness was more uniform by electrofabrication, suggesting that the electrofabrication approach is highly reproducible and spatially programmable.…”

Section: Resultssupporting

confidence: 90%

Programmable Physical Properties of Freestanding Chitosan Membranes Electrofabricated in Microfluidics

Piao

Raub

et al. 2023

Membranes

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Microfluidic-integrated freestanding membranes with suitable biocompatibility and tunable physicochemical properties are in high demand for a wide range of life science and biological studies. However, there is a lack of facile and rapid methods to integrate such versatile membranes into microfluidics. A recently invented interfacial electrofabrication of chitosan membranes offers an in-situ membrane integration strategy that is flexible, controllable, simple, and biologically friendly. In this follow-up study, we explored the ability to program the physical properties of these chitosan membranes by varying the electrofabrication conditions (e.g., applied voltage and pH of alginate). We found a strong association between membrane growth rate, properties, and fabrication parameters: high electrical stimuli and pH of alginate resulted in high optical retardance and low permeability, and vice versa. This suggests that the molecular alignment and density of electrofabricated chitosan membranes could be actively tailored according to application needs. Lastly, we demonstrated that this interfacial electrofabrication could easily be expanded to produce chitosan membrane arrays with higher uniformity than the previously well-established flow assembly method. This study demonstrates the tunability of the electrofabricated membranes’ properties and functionality, thus expanding the utility of such membranes for broader applications in the future.

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Section: Resultssupporting

confidence: 90%

Programmable Physical Properties of Freestanding Chitosan Membranes Electrofabricated in Microfluidics

Piao

Raub

et al. 2023

Membranes

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“…Some modified methods are blending and cross-linking with some compounds. [11][12][13][14] Some compound has been combined with chitosan such as poly(acryl acid) 15 , poly vinyl alcohol 1 , polysulphon/ N,O-carboxymethyl 16 , polysulphon with amphiphilic block 17 , thiourea-formaldehyde. 18 In this research chitosan blend with calcium alginate.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization Chitosan-Glutaraldehide Alginate Blends for Candidate Hemodialysis Membrane

2017

RJC

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The composite membrane was produced by mixing the chitosan and sodium alginate solutions followed glutaraldehyde as a crosslinking agent for filtration of Ca 2+ ion, phosphate ion, sodium salicylate, urea, and albumin. The membranes were characterized by FTIR to verify the functional group, tensile testing to test their mechanical stability, the surface morphology analysis, and application of membrane for filtration that minerals. The results showed that the mechanical properties of the membrane the higher the concentration of chitosan in the membrane, the higher the value of modulus young. The morphology analysis showed that this membrane has a diameter of the pore in range nanopore, included in the range of ultrafiltration membrane. The membrane of chitosanglutaraldehyde-alginate was applied for the filtration some minerals with a variety of concentrations. This membrane could filtration Ca 2+ and phosphate ion, sodium salicylate, urea and albumins were 5.51 mmol/L; 39.27 mg/L; 30.87 mg/L; 500.56 mg/Land 0 mg/L, respectively.

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Fabrication and Characterization of Porous Flow-Assembled Chitosan Membranes in Microfluidics

Luo

2021

IFMBE Proceedings

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On-Chip Fabrication of Carbon Nanoparticle–Chitosan Composite Membrane

Cited by 9 publications

References 49 publications

Programmable Physical Properties of Freestanding Chitosan Membranes Electrofabricated in Microfluidics

Programmable Physical Properties of Freestanding Chitosan Membranes Electrofabricated in Microfluidics

Synthesis and Characterization Chitosan-Glutaraldehide Alginate Blends for Candidate Hemodialysis Membrane

Fabrication and Characterization of Porous Flow-Assembled Chitosan Membranes in Microfluidics

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