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2. Positron emission tomography - Wikipedia

   en.wikipedia.org/wiki/Positron_emission_tomography

   Positron emission tomography ( PET) [ 1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption. Different tracers are used for various imaging ...

3. Polyethylene terephthalate - Wikipedia

   en.wikipedia.org/wiki/Polyethylene_terephthalate

   Polyethylene terephthalate (or poly (ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P ), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, and thermoforming for manufacturing, and in combination with glass fibre for engineering resins. [ 5]

4. Polyester - Wikipedia

   en.wikipedia.org/wiki/Polyester

   Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. [ 1] As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in plants and insects, as well as synthetics such as polybutyrate.

5. Polyethylene glycol - Wikipedia

   en.wikipedia.org/wiki/Polyethylene_glycol

   Infobox references. Polyethylene glycol ( PEG; / ˌpɒliˈɛθəlˌiːn ˈɡlaɪˌkɒl, - ˈɛθɪl -, - ˌkɔːl /) is a polyether compound derived from petroleum with many applications, from industrial manufacturing to medicine. PEG is also known as polyethylene oxide ( PEO) or polyoxyethylene ( POE ), depending on its molecular weight.

6. Nature Chemistry - Wikipedia

   en.wikipedia.org/wiki/Nature_Chemistry

   Nature Chemistry is a monthly peer-reviewed scientific journal published by Nature Portfolio. It was established in April 2009. The editor-in-chief is Stuart Cantrill. The journal covers all aspects of chemistry. Publishing formats include primary research articles, reviews, news, views, highlights of notable research from other journals ...

7. Terephthalic acid - Wikipedia

   en.wikipedia.org/wiki/Terephthalic_acid

   Terephthalic acid is an organic compound with formula C 6 H 4 (CO 2 H) 2. This white solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles. Several million tons are produced annually. [ 8]