Free-standing flexible and biomimetic hybrid membranes for ions and ATP transport

Molina, Brenda G.; Lopes-Rodrigues, Maximilien; Estrany, Francesc; Michaux, Catherine; Perpète, Éric A.; Armelín, Elaine; Alemán, Carlos

doi:10.1016/j.memsci.2020.117931

Cited by 5 publications

(3 citation statements)

References 46 publications

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“…[1,2] Particularly, in the biomedical area, hybrid systems have attracted attention due to the achievement of some relevant properties of the new material, making them suitable to be in contact with biological fluids and living organisms. [3][4][5][6][7] Mano and co-workers, [8] for example, developed a hybrid biologically-inspired adhesive patch, composed by natural polymers (chitosan, alginate and hyaluronic acid) and dopamine as outer layer, obtaining a free-standing multilayered membrane for skin wound healing. The new adhesive showed increased human fibroblast cell viability and selective bacteriostatic activity against Escherichia coli but not against Staphylococcus aureus.…”

Section: Introductionmentioning

confidence: 99%

Pla-Peg-Cholesterol Biomimetic Membrane for Electrochemical Sensing of Antioxidants

Mohammed-Sadhakathullah,

Paulo-Mirasol,

Molina

et al. 2023

Preprint

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Section: Introductionmentioning

confidence: 99%

Pla-Peg-Cholesterol Biomimetic Membrane for Electrochemical Sensing of Antioxidants

Mohammed-Sadhakathullah,

Paulo-Mirasol,

Molina

et al. 2023

Preprint

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“…Apart from those properties, nanomembranes have also attracted great attention due to the possibility to easily tune their architecture from single layered to multilayered nanomembranes and with or without (nano)perforations. Such variability has allowed expanding their applicability range like the transport of metabolites through the nanomembranes, soft actuators, water remediation or biointerfaces as cell matrixes [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Combining 2D organic and 1D inorganic nanoblocks to develop free-standing hybrid nanomembranes for conformable biosensors

et al. 2022

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We report a simple approach to fabricate free-standing perforated 2D nanomembranes hosting well-ordered 1D metallic nanostructures to obtain hybrid materials with nanostructured surfaces for flexible electronics. Nanomembranes are formed by alternatively depositing perforated poly(lactic acid) (PLA) and poly(3,4-ethylenedioxythiophene) layers. Copper metallic nanowires (NWs) were incorporated into the nanoperforations of the top PLA layer by electrodeposition and further coated with silver via a transmetallation reaction. The combination of 2D polymeric nanomembranes and aligned 1D metallic NWs allows merging the flexibility and conformability of the ultrathin soft polymeric nanomembranes with the good electrical properties of metals for biointegrated electronic devices. Thus, we were able to tailor the nanomembrane surface chemistry as it was corroborated by SEM, EDX, XPS, CV, EIS and contact angle. The obtained hybrid nanomembranes were flexible and conformable showing sensing capacity towards H2O2 with good linear concentration range (0.35–10 mM), sensitivity (120 µA cm−2 mM−1) and limit of detection (7 μm). Moreover, the membranes showed good stability, reproducibility and selectivity towards H2O2.

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“…In addition to eliminating ICP, an ideal FO membrane should retain an elevated water permeability and low salt permeability. Therefore, more efforts should be carried out for the further design of free-standing symmetric FO membranes. − …”

Section: Introductionmentioning

confidence: 99%

High-Performance, Free-Standing Symmetric Hybrid Membranes for Osmotic Separation

Geng

Liang

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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The internal concentration polarization (ICP) of asymmetric osmotic membranes with support layers greatly reduced membrane water permeability, therefore compromising membrane performance. In this study, a series of free-standing symmetric hybrid forward osmosis (FO) membranes without experiencing ICP were fabricated by covalently linking metal−organic framework (MOF) nanofillers with a polymer matrix. Owing to the introduction of MOFs, which allow only water permeation but reject salts by steric hindrance, the prepared hybrid membranes could approach the empirical permeability-selectivity trade-off. The optimized hybrid membrane displayed an outstanding water/Na 2 SO 4 selectivity of ∼1208.4 L mol −1 , compared with that of conventional membranes of ∼375.6 L mol −1 . Additionally, the fabricated hybrid membranes showed excellent mechanical robustness, maintaining structural integrity during the long-term FO separation of high-salinity solution. This work provides an effective methodology to fabricate high-performance, symmetric MOF-based membranes for osmotic separation processes such as seawater desalination and water purification.

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Free-standing flexible and biomimetic hybrid membranes for ions and ATP transport

Cited by 5 publications

References 46 publications

Pla-Peg-Cholesterol Biomimetic Membrane for Electrochemical Sensing of Antioxidants

Pla-Peg-Cholesterol Biomimetic Membrane for Electrochemical Sensing of Antioxidants

Combining 2D organic and 1D inorganic nanoblocks to develop free-standing hybrid nanomembranes for conformable biosensors

High-Performance, Free-Standing Symmetric Hybrid Membranes for Osmotic Separation

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