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Lipophobicity, also sometimes called lipophobia (from the Greek λιποφοβία from λίπος ''lipos'' "fat" and φόβος ''phobos'' "fear"), is a chemical property of chemical compounds which means "fat rejection", literally "fear of fat". Lipophobic compounds are those not soluble in lipids or other non-polar solvents. From the other point of view, they do not absorb fats. "Oleophobic" (from the Latin ''oleum'' "oil", Greek ελαιοφοβικό ''eleophobico'' from έλαιο ''eleo'' "oil" and φόβος ''phobos'' "fear") refers to the physical property of a molecule that is repelled from oil. The most common lipophobic substance is water. Fluorocarbons are also lipophobic/oleophobic in addition to being hydrophobic. ==Uses== A lipophobic coating is used on the touchscreens of Apple's iPhones since the 3GS, their iPads,〔(【引用サイトリンク】publisher=Apple )〕 Nokia's N9 and Lumia devices, various Samsung phones such as the Google Nexus S and Galaxy Nexus, the HTC HD2, Hero, LG G3 and Flyer and many other phones to repel fingerprint oil, which aids in preventing and cleaning fingerprint marks. Most "Oleophobic" coatings used on mobile devices are fluoropolymer-based solids (similar to Teflon, which was used on the HTC Hero〔(【引用サイトリンク】title=HTC Hero Specifications )〕) and are both lipophobic and hydrophobic. In addition to being lipophobic or oleophobic, perfluoropolyether coatings impart exceptional lubricity to touch screens and give them a "slick feel" that eases their use.〔(【引用サイトリンク】publisher=Cytonix )〕 Use of isopropyl alcohol to clean the screen can damage or remove the coating. Several products exist to restore or add a lipophobic coating to devices lacking one. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「lipophobicity」の詳細全文を読む スポンサード リンク
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