Polymer Membrane Synthesis
Polymer Membrane Synthesis - Related Videos
13:42
Solid-phase Submonomer Synthesis of Peptoid Polymers and their Self-Assembly into Highly-Ordered Nanosheets
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Cited by 40 •
2011
A simple and general manual peptoid synthesis method involving basic equipment and commercially available reagents is outlined, enabling peptoids to be easily synthesized in most laboratories. The synthesis, purification and characterization of an amphiphilic peptoid 36mer is described, as well as its self-assembly into highly-ordered nanosheets.
04:46
Synthesis of Nanodisc-Stabilized Membrane Protein Antigens Using a Cell-Free System
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2025
Source: Gilmore, S. F., et al. Cell-Free Scaled Production and Adjuvant Addition to a Recombinant Major Outer Membrane Protein from Chlamydia muridarum for Vaccine Development. J. Vis. Exp. (2022)This video demonstrates the cell-free synthesis of nanodisc-stabilized membrane protein antigens using a dual-compartment system. The device maintains optimal conditions for efficient protein synthesis, proper folding, and stable integration into nanodiscs.
09:09
Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
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Cited by 3 •
2015
In this paper we describe the interfacial synthesis of conjugated microporous polymers (CMP) on sacrificial substrates, and the dissolution of the substrate for the preparation of freestanding CMP nanomembranes. In addition, we will describe how the fragile nanomembranes can be transferred to other substrates.
10:58
Combinatorial Synthesis of and High-throughput Protein Release from Polymer Film and Nanoparticle Libraries
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Cited by 7 •
2012
This method describes the combinatorial synthesis of biodegradable polyanhydride film and nanoparticle libraries and the high-throughput detection of protein release from these libraries.
06:55
Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
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2016
A protocol for the synthesis and characterization of diffusive motion of cyclic polymers at the single molecule level is presented.
FAQs
During phase inversion, solvent moves from the cast polymer solution into the nonsolvent while the nonsolvent enters the film. This exchange reduces polymer solubility and triggers precipitation. The timing and extent of precipitation help determine whether the resulting membrane develops a porous or denser structure, which directly affects molecular, ionic, and fluid transport.
Polymer composition, solvent system, additives, temperature, and other processing conditions collectively control membrane characteristics. Changing these variables can alter pore size, permeability, mechanical strength, and selectivity. Researchers therefore adjust the formulation and processing environment to match the intended transport requirement rather than treating membrane structure as a fixed property.
The choice depends on the required transport behavior. Porous structures can support passage through defined openings, whereas denser structures can provide a more restrictive barrier. Because membrane architecture influences permeability and selectivity, this distinction matters when designing systems for filtration, controlled delivery, biosensing, cell encapsulation, or tissue-engineering applications.
A typical workflow begins by preparing a polymer solution with the selected solvent system and any additives. The solution is then cast into a film and immersed in a nonsolvent. Solvent exchange causes polymer precipitation, producing the membrane structure. Researchers subsequently evaluate properties such as permeability, pore size, mechanical strength, and selectivity.
Application-specific design starts with the transport and barrier requirements of the system. Filtration may prioritize permeability and selectivity, while drug delivery may require controlled transport. Biosensing, cell encapsulation, and tissue-engineering scaffolds also require suitable membrane structure and mechanical behavior, with biocompatibility remaining important wherever the membrane interacts with biological systems.
Researchers can compare pore size, permeability, mechanical strength, and selectivity to determine whether processing produced the intended performance. These measurements connect fabrication choices with transport and structural behavior. In bioengineering, evaluation also considers whether the membrane provides the controlled transport and biocompatibility needed for filtration, delivery, sensing, encapsulation, or scaffold use.