Related Experiment Video
Updated: Aug 12, 2025
11:55
Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution
Published on: August 16, 2016
11.8K
Controlled Membrane Transport in Polymeric Biomimetic Nanoreactors
Shoupeng Cao1, Tsvetomir Ivanov1, Marina de Souza Melchiors1
1Department of Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Chembiochem : a European Journal of Chemical Biology
|January 30, 2023
Summary
Polymersome-based biomimetic nanoreactors (PBNs) offer robust, tunable platforms for cell mimicry. These nanoreactors control transport and convert substrates, paving the way for advanced artificial organelles in nanomedicine.
Area of Science:
- Nanomedicine
- Biomaterials Science
- Cell Mimicry
Background:
- Polymersome-based biomimetic nanoreactors (PBNs) are gaining attention for their robustness and versatile chemistry.
- Their applications span nanomedicine and cell mimicry, highlighting their biological relevance.
Purpose of the Study:
- To review the current state of functional polymersomes as biomimetic nanoreactors.
- To focus on PBNs with membrane-controlled transport and stimuli-responsive permeability.
- To explore PBNs as artificial organelles for biomedical applications.
Main Methods:
- Discussion of polymersome structure and function.
- Analysis of membrane permeability control via environmental changes or external stimuli.
- Review of catalytic species encapsulation for substrate conversion.
Main Results:
- PBNs demonstrate tuneable membrane permeability while maintaining structural integrity.
- Encapsulated catalysts enable controlled conversion of inactive substrates to functional products.
- PBNs show promise as tailored artificial organelles for in vitro and in vivo applications.
Conclusions:
- PBNs represent a significant advancement in creating functional artificial organelles.
- Their ability to mimic cellular functions offers potential for next-generation therapeutics.
- Further development of PBNs can lead to innovative nanocompartments for biomedical use.
Related Concept Videos
01:24Cellular Membranes and Drug Transport
723
Drugs must traverse multiple biological barriers, such as multi-layered skin, single-layered intestinal epithelium, and the plasma membrane, to reach their target sites within the body. The plasma membrane, a highly structured composite of phospholipids, carbohydrates, and proteins, is the cell's protective boundary, facilitating selective substance exchange.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
723
01:19Membrane Asymmetry Regulating Transporters
4.7K
Enzymes like flippase, floppase, and scramblase transfer phospholipids from one layer to another in the membrane, thereby affecting membrane asymmetry.
Flippase
Eukaryotic flippases are type-IV P-type ATPases or P4-ATPases belonging to P-type ATPase family proteins that are membrane-bound pumps involved in the ATP-mediated transport of ions and molecules across the membrane. Flippases flip specific phospholipids from the outer to the inner leaflet of a membrane. All P4-ATPases have one...
Flippase
Eukaryotic flippases are type-IV P-type ATPases or P4-ATPases belonging to P-type ATPase family proteins that are membrane-bound pumps involved in the ATP-mediated transport of ions and molecules across the membrane. Flippases flip specific phospholipids from the outer to the inner leaflet of a membrane. All P4-ATPases have one...
4.7K
01:44The Significance of Membrane Transport
28.3K
The transport of solutes across the cell membrane is essential for metabolic processes, like maintaining cell size and volume, generating the action potential, exchanging nutrients and gases, etc. Membrane transport can be either passive or active. It can be simple diffusion, facilitated, or mediated transport aided by transport proteins such as transporters and channels.
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
28.3K
01:16Facilitated Diffusion
539
The plasma membrane, a critical structure in cellular biology, houses an array of transporters, or carrier proteins, interspersed within its lipid bilayer. These proteins play a crucial role in solute transport through facilitated diffusion, a form of passive diffusion that uses transporters to move the molecules across the membrane.
In this process, substrates such as organic compounds and ions interact with a transporter on one side, triggering conformational changes in proteins that enable...
In this process, substrates such as organic compounds and ions interact with a transporter on one side, triggering conformational changes in proteins that enable...
539
01:17Pore Transport and Ion-Pair Transport
551
Pore transport and ion-pair formation are critical mechanisms for the absorption and distribution of drugs in the body.
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
551
01:19Drug Absorption Mechanism: Carrier-Mediated Membrane Transport
4.0K
Certain large, lipid-insoluble drug molecules that resemble amino acids, peptides, or glucose, require specialized carrier proteins to facilitate their diffusion across cell membranes. This transport can occur through either facilitated diffusion, which does not require energy input, or active transport, which does require energy input.
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
4.0K