Highly permeable aquaporin-embedded biomimetic membranes featuring a magnetic-aided approach

Sun, Guofei; Chung, Tai‐Shung; Chen, Ningping; Lu, Xianmao; Zhao, Qipeng

doi:10.1039/c3ra40608c

Cited by 54 publications

(38 citation statements)

References 29 publications

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“…Sun et al [13] managed to encapsulate magnetic particles into proteoliposomes and more proteoliposomes tended to move towards the substrate surface under a magnetic field. All the membranes prepared by this protocol were nanofiltration (NF)-type membranes.…”

Section: Introductionmentioning

confidence: 98%

Preparation of high performance nanofiltration (NF) membranes incorporated with aquaporin Z

Wang

Wicaksana

et al. 2014

Journal of Membrane Science

136

100

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Section: Introductionmentioning

confidence: 98%

Preparation of high performance nanofiltration (NF) membranes incorporated with aquaporin Z

Wang

Wicaksana

et al. 2014

Journal of Membrane Science

136

100

View full text Add to dashboard Cite

“…When the voltage was A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT 16 increased to 30 kV, the pre-polymer mixture was expelled with a higher kinetic energy, producing disordered films at surface level. This occurs until a point in where the formation of clusters or small agglomerations over silicon wafer was realized.…”

Section: Resultsmentioning

confidence: 99%

Thin and ordered hydrogel films deposited through electrospinning technique; a simple and efficient support for organic bilayers

González‐Henríquez

Pizarro

Sarabia-Vallejos

et al. 2015

Biochimica et Biophysica Acta (BBA) - Biomembranes

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Thermal behavior of Dipalmitoylphosphatidylcholine (DPPC) bilayers deposited over hydrogel fibers was examined. Thus, membrane stability, water absorption-release, phase transitions and phase transition temperatures were studied through different methods during heating cycles. Hydrogel films were realized using an oligomer mixture (HEMA-PEGDA575/photo-initiator) with adequate viscosity. Then, the fibers were deposited over silicon wafers (hydrophilic substrate) through electrospinning technique using four different voltages: 15, 20, 25 and 30 kV. The films were then exposed to UV light, favoring polymer chain crosslinking and interactions between hydrogel and substrate. For samples deposited at 20 and 25 kV, hierarchical wrinkle folds were observed at surface level, their arrangement distribution depends directly on thickness and associated point defects. DPPC bilayers were then placed over hydrogel scaffold using Langmuir-Blodgett technique. Field emission scanning electron microscopy (FE-SEM) analysis were used to investigate sample surface, micrographies show homogeneous layer formation with chain polymer order/disorder related to applied voltage during hydrogel deposition process, among other parameters. According to the results obtained, it is possible to conclude that the oligomer deposited at 20 kV produce thin homogenous films (~40 nm) with enhanced ability to absorb water and release it in a controlled way during heating cycles. These scaffold properties confer to DPPC membrane thermal stability, which allow an easy detection of phase(s) and phase transitions. Thermal behavior was also studied via Atomic Force Microscopy (roughness analysis). Contact angle measurements corroborate system wettability, supporting the theory that hydrogel thin films act as DPPC membrane enhancers for thermal stability against external stimuli.

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“…Subsequent research has shown that intact vesicles incorporated with AQP had an excellent mechanical strength and stability [15]. Thus, instead of forming a dense layer by vesicle fusion and collapse, another protocol is now emerging where the vesicles with AQPs are immobilized on a porous substrate and subsequently coated by a layer to cover or connect these vesicles [16][17][18][19][20]. This coating layer can be formed either by crosslinking with chemicals, or by layerby-layer assembly with polyelectrolytes or by polymerization.…”

Section: Introductionmentioning

confidence: 98%

Nature gives the best solution for desalination: Aquaporin-based hollow fiber composite membrane with superior performance

Chou

Wang

et al. 2015

Journal of Membrane Science

155

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Highly permeable aquaporin-embedded biomimetic membranes featuring a magnetic-aided approach

Cited by 54 publications

References 29 publications

Preparation of high performance nanofiltration (NF) membranes incorporated with aquaporin Z

Preparation of high performance nanofiltration (NF) membranes incorporated with aquaporin Z

Thin and ordered hydrogel films deposited through electrospinning technique; a simple and efficient support for organic bilayers

Nature gives the best solution for desalination: Aquaporin-based hollow fiber composite membrane with superior performance

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