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Related Concept Videos

Molecular Weight of Step-Growth Polymers01:08

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Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
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Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
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Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
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When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
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Basics of Compounding: Compounding Foams.

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This summary is machine-generated.

Pharmaceutical foam technology offers numerous advantages for topical drug delivery. These foams provide an aesthetically pleasing and effective alternative to traditional formulations, improving patient compliance and medication administration.

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Area of Science:

  • Dermatology
  • Pharmaceutics
  • Drug Delivery Systems

Background:

  • Pharmaceutical foams are increasingly popular for topical drug delivery.
  • Foam technology enables the incorporation of various active agents like corticosteroids, anti-inflammatories, sunscreens, and antimicrobials.
  • Foams offer aesthetic and cosmetic appeal, differentiating them from conventional ointments, creams, lotions, and gels in the competitive dermatological market.

Purpose of the Study:

  • To highlight the growing significance and advantages of pharmaceutical foam technology in topical drug delivery.
  • To explore the unique application benefits and patient compliance associated with foam formulations.
  • To showcase the versatility of foams as a dosage form for diverse therapeutic applications and patient populations.

Main Methods:

  • Review of current applications and benefits of pharmaceutical foam technology.
  • Analysis of foam properties contributing to improved drug delivery and patient acceptance.
  • Exploration of innovative uses, including administration to bedridden patients and pediatric/geriatric populations.

Main Results:

  • Foams provide an elegant, aesthetically pleasing alternative to traditional topical formulations.
  • Foam technology enhances patient compliance due to ease of application and reduced rubbing.
  • Foams can be formulated to be spill-resistant, reproducible, and palatable, making them suitable for various patient groups.

Conclusions:

  • Pharmaceutical foams represent a significant advancement in topical drug delivery, offering superior application advantages and patient acceptance.
  • The versatility and cosmetic appeal of foams make them a valuable dosage form in dermatology and beyond.
  • Foam technology facilitates innovative medication administration, addressing challenges in patient care and compliance.