Why is hyperbranched polyglycerol antifouling?
Best insight from top research papers
Hyperbranched polyglycerol (HPG) exhibits antifouling properties due to its unique physicochemical characteristics . HPG is highly water-soluble, biocompatible, and possesses an antifouling feature, making it attractive for various applications, including modifying carbon-based nanomaterials and biomedical devices. When used to coat surfaces, HPG significantly reduces protein adsorption, cell adhesion, and microbial attachment, thereby preventing fouling. The antifouling nature of HPG is attributed to its high water solubility, functionality, and ability to form hydrophilic and non-adhesive surfaces, which deter the accumulation of unwanted biological matter. Additionally, HPG can be modified to enhance its antifouling properties, making it a promising material for developing durable and effective antifouling coatings.
Answers from top 4 papers
More filters
| Papers (4) | Insight |
|---|---|
| Hyperbranched polyglycerol (HPG) is antifouling due to steric hindrance from its hyperbranched structure, which hinders marine microorganism attachment by creating a protective barrier on the surface. | |
11 May 2020 6 Citations | Hyperbranched polyglycerol (HPG) is antifouling due to its non-fouling hydrophilic properties, making it resistant to adsorption of proteins and cells on biomaterial surfaces. |
15 Citations | Hyperbranched polyglycerol is antifouling due to its ability to greatly reduce cell adhesion, protein adsorption, and enable specific biological interactions, making it ideal for biomedical devices. |
| Hyperbranched polyglycerol is antifouling due to its incorporation in poly(ionic liquid) coatings, enhancing mobility for self-healing interactions, preventing fouling in osmotic power generation membranes. |
Related Questions
Why is hydrophilic surfaces antifouling?4 answersHydrophilic surfaces are antifouling due to their ability to resist protein, bacterial, and cell adhesion. When surfaces are modified with hydrophilic polymers like zwitterionic block copolymers or sulfur-containing polymer brushes, they exhibit high hydrophilicity and excellent antifouling properties without the need for pre-hydration. These modifications create surfaces that repel foulants such as proteins, bacteria, and other biological entities, preventing their adhesion and subsequent biofilm formation. The presence of zwitterionic groups or positive charges on the surface further enhances the antibacterial activity, making these surfaces dual-functional with both antifouling and antibacterial properties. Overall, the hydrophilic nature of these surfaces plays a crucial role in preventing nonspecific biological adhesion, making them ideal for various biomedical and environmental applications.
What is the future trends of antifouling coatings for biomedical applications?5 answersAntifouling coatings for biomedical applications are an important area of research. One future trend is the development of coatings that have both antifouling and antibacterial properties. These coatings can help prevent infections caused by biofouling on medical devices. Another trend is the use of self-defensive coatings that can actively remove bacteria and renew the antifouling surfaces. These coatings incorporate materials that can release antibacterial agents and degrade in the presence of bacteria. Additionally, there is a focus on developing coatings with self-healing properties, which can repair any damages or scratches that may occur on the coating, maintaining its antifouling functionality. Furthermore, the use of environmentally friendly coatings, such as siloxane coatings, is being explored as alternatives to fluorinated films. These coatings show promise in repelling liquids and have low adhesion towards biological mixtures. Overall, the future trends in antifouling coatings for biomedical applications involve the development of multifunctional coatings with antibacterial, self-defensive, and self-healing properties, as well as the exploration of environmentally friendly alternatives.
Does topology affect the antifouling of a polymer brush?5 answersThe topology of a polymer brush does affect its antifouling properties. Different topologies, such as linear, loop, 3-armed, and 4-armed polymers, can lead to different morphologies of the polymer-modified surfaces, ranging from smooth to nanoscale coarse surfaces. The increase in arm numbers can result in an increase in nanoscale roughness, leading to higher hydrophilicity of the coatings. The antifouling efficiency of the polymer brush can be adjusted simply by the topology, with the 4-armed polymer exhibiting the best antifouling efficiency. Additionally, the carbon space length between zwitterionic groups and the nature of the anionic groups in zwitterionic polymer brushes have a distinct effect on their antifouling performance. The conformation and compositional heterogeneities of asymmetric polymer brushes can also enhance their antifouling performance. Therefore, the topology of a polymer brush plays a crucial role in determining its antifouling properties.
Is sulphated fucoidan antifouling?4 answersSulphated fucoidan has been shown to have antifouling properties. Fucoidan, a natural polysaccharide derived from brown seaweeds, has been used as an antifouling material due to its ability to inhibit the adhesion and growth of organisms on solid surfaces. Fucoidan can be conjugated with catechols to create fucoidan catechol (FD-C), which can be used to produce robust antifouling coatings on various substrates. The FD-C coatings have demonstrated excellent antifouling capability against fouling organisms, including bacteria. Additionally, fucoidan has been found to have anti-inflammatory and anti-oxidative effects. Therefore, sulphated fucoidan can be considered as an antifouling material with potential applications in various industries.
Are antifouling compounds concentrated in algae surface?3 answersAntifouling compounds in algae are found in both the surface and the whole-cell extracts. Surface extracts of certain algae, such as Delisea pulchra and Caulerpa filiformis, have been shown to contain non-polar metabolites that significantly inhibit settlement of fouling organisms. These species also exhibit lower biofouling cover in the field compared to other seaweeds. However, whole-cell extracts of various seaweeds have also been found to contain non-polar metabolites that inhibit settlement at concentrations lower than the total whole tissue content. Therefore, settlement assays with whole-cell extracts may not accurately predict the natural antifouling roles of seaweed metabolites. It has been suggested that the surface extraction procedure used in studies, such as the one described for D. pulchra, can be useful for investigating the deterrent effects of seaweed surface metabolites against fouling organisms.
How can biofouling in membranes be prevented?5 answersBiofouling in membranes can be prevented through various approaches. One method is to modify the membrane surface with biomimetic patterns, such as the sharkskin pattern, which has been shown to effectively mitigate biofouling. Another approach is to consider the characteristics of the membrane, such as surface roughness, charge, and hydrophilicity, as these can affect biofouling. Concentration polarization, which contributes to biofouling, should also be taken into account. Monitoring and control measures for biofouling are crucial, and physical, chemical, and biological methods can be employed for this purpose. Additionally, the use of quorum sensing inhibitors (QSIs) can inhibit biofilm formation and alleviate biofouling in membrane filtration processes. Novel strategies, such as enzyme-based cleaners and naturally produced antimicrobials, can also be utilized to control membrane biofilms.