Layer-by-layer modification effects on a nanopore's inner surface of polycarbonate track-etched membranes
نویسندگان
چکیده
منابع مشابه
Chemical Modification of track-etched dingle conical nanopores inducing inversed inner wall polarity
Nanopores are currently considered as promising candidates for a variety of applications, including separation techniques and biological sensing [1,2]. The pore surface properties are crucial for all these applications, since they influence the transport properties (e.g. hydrophobicity, selectivity) and chemical groups on the inner pore walls may serve as binding sites for analytes [3]. Therefo...
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The production of the track-etched membranes is well known in membrane science. Latent ion tracks are the result of the passage of swift ions through solid matter, they can be etched selectively in many materials. As a result, conical, cylindrical or other shape channels can be obtained. The increasing interest in polymer track-etched membranes with nano-channels is connected with the developme...
متن کاملConformal SiO2 coating of sub-100 nm diameter channels of polycarbonate etched ion-track channels by atomic layer deposition
Polycarbonate etched ion-track membranes with about 30 µm long and 50 nm wide cylindrical channels were conformally coated with SiO2 by atomic layer deposition (ALD). The process was performed at 50 °C to avoid thermal damage to the polymer membrane. Analysis of the coated membranes by small angle X-ray scattering (SAXS) reveals a homogeneous, conformal layer of SiO2 in the channels at a deposi...
متن کاملLayer-by-layer surface modification of lipid nanocapsules.
Lipid nanocapsules (LNCs) were modified by adsorbing sequentially dextran sulfate (DS) and chitosan (CS) on their surface by the layer-by-layer (LBL) approach. Tangential flow filtration (TFF) was used in intermediate purifications of the LNC dispersion during the LBL process. The surface modification was based on electrostatic interactions between the coating polyelectrolytes (PEs) and the LNC...
متن کاملVesicle extrusion through polycarbonate track-etched membranes using a hand-held mini-extruder.
The vesicle extrusion method is used for preparing small (e.g., 100 nm diameter) monodisperse (uniform-sized) vesicles. Polycarbonate track-etched membranes with pores generally ranging from 50 to 200 nm in diameter and a hand-held mini-extruder are used for such a procedure. Extrusion through small (100 nm in diameter or smaller) pores also ensures that the vesicle population is predominantly ...
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ژورنال
عنوان ژورنال: RSC Advances
سال: 2020
ISSN: 2046-2069
DOI: 10.1039/d0ra05322h