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a polymer powder born pretty
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
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Several 3D printing materials are waterproof, including certain types of plastics and resins. Polyactic Acid (PLA) can be waterproof if properly treated, but it's not inherently water-resistant. Acrylonitrile Butadiene Styrene (ABS) is a stronger, petroleum-based plastic that is naturally more resistant to water and can be made completely waterproof through proper sealing or coating. Photopolymer resins used in SLA and DLP 3D printing, once fully cured, are inherently waterproof and often used in applications requiring water resistance. However, the level of water resistance can vary based on the resin's formulation. It's important to note that the waterproof nature is also highly dependent on how the object is printed, including factors like layer adhesion and the presence of any gaps or faults in the final product.
Camptothecin (CPT), a potent anticancer alkaloid, has shown remarkable efficacy against various cancers; however, its clinical application is limited due to poor water solubility and severe side effects. To address these issues, researchers have developed a novel drug delivery system using a cyclodextrin (CD)-containing polymer conjugate. CDs are cyclic oligosaccharides that can encapsulate hydrophobic drugs like CPT within their hydrophobic cavities, enhancing their solubility and stability. The polymer conjugate used in this system is designed to improve the pharmacokinetics and biodistribution of the drug. By conjugating CPT with CD via a biodegradable linkage, the conjugate can achieve controlled release of the drug at the tumor site, minimizing systemic toxicity. This innovative approach not only increases the therapeutic index of CPT but also potentially broadens its clinical utility.
No, lipids are not amino acids. Lipids are a broad class of molecules that include fats, oils, waxes, and certain vitamins, among others, which are primarily used for energy storage, insulation, and as structural components of cell membranes. Unlike proteins, which are polymers of amino acids, lipids are generally constructed from fatty acids and glycerol. Amino acids, on the other hand, are organic compounds that serve as the building blocks of proteins, essential for numerous biological functions including enzyme activity, cell signaling, and tissue repair. While both lipids and amino acids are vital for life, they play very distinct roles in biological systems and have different structures and functions.
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