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  2. Pressure-sensitive adhesive - Wikipedia

    en.wikipedia.org/wiki/Pressure-sensitive_adhesive

    In contrast, pressure-sensitive adhesives (PSAs) form a bond simply by the application of light pressure to marry the adhesive with the adherend. Pressure-sensitive adhesives are designed with a balance between flow and resistance to flow. The bond forms because the adhesive is soft enough to flow, or wet, the adherend.

  3. Chemistry of pressure-sensitive adhesives - Wikipedia

    en.wikipedia.org/wiki/Chemistry_of_pressure...

    A typical PSA tape consists of a pressure-sensitive adhesive (the sticky part of the tape) coated to a backing material. To prevent the adhesive from sticking to the backing when wound in a roll, a release agent is applied to the backing or a release liner is placed on the adhesive. Sometimes a primer is coated between the adhesive and backing ...

  4. Pressure-sensitive tape - Wikipedia

    en.wikipedia.org/wiki/Pressure-sensitive_tape

    Pressure-sensitive tape or pressure-sensitive adhesive tape (PSA tape) is an adhesive tape that sticks when pressure is applied without the need for a solvent (such as water) or heat for activation. It is also known in various countries as self-stick tape , sticky tape , or just adhesive tape and tape , as well as genericized trademarks , such ...

  5. Polar surface area - Wikipedia

    en.wikipedia.org/wiki/Polar_surface_area

    The polar surface area (PSA) or topological polar surface area (TPSA) of a molecule is defined as the surface sum over all polar atoms or molecules, primarily oxygen and nitrogen, also including their attached hydrogen atoms. PSA is a commonly used medicinal chemistry metric for the

  6. Prostate-specific antigen - Wikipedia

    en.wikipedia.org/wiki/Prostate-specific_antigen

    Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), P-30 antigen, is a glycoprotein enzyme encoded in humans by the KLK3 gene.PSA is a member of the kallikrein-related peptidase family and is secreted by the epithelial cells of the prostate gland in men and the paraurethral glands in women.

  7. PSA: The "Find My" App Could Be Hurting Your Relationship - AOL

    www.aol.com/lifestyle/psa-app-could-hurting...

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  8. Ultrasensitivity - Wikipedia

    en.wikipedia.org/wiki/Ultrasensitivity

    In molecular biology, ultrasensitivity describes an output response that is more sensitive to stimulus change than the hyperbolic Michaelis-Menten response. Ultrasensitivity is one of the biochemical switches in the cell cycle and has been implicated in a number of important cellular events, including exiting G2 cell cycle arrests in Xenopus ...

  9. PSA: Feeld, the Dating App, Is Publishing a Magazine - AOL

    www.aol.com/psa-feeld-dating-app-publishing...

    Ana Kirova, CEO of Feeld, the popular kink- and poly-forward app, discusses the launch of “A Fucking Magazine,” dating app fatigue, and how her own relationship to ethical nonmonagamy has evolved.