{"product_id":"skin-hair-analysis-products-c-k-scientific-products-other-devices-drop-angle-meter-dm-300-compact-high-quality-instrument-for-analyzing-wettability-and-spreadability-of-materials-on-the-skin","title":"Drop Angle Meter DM 300 - Compact, high-quality instrument for analyzing wettability and spreadability of materials on the skin","description":"\u003cdiv class=\"uk-grid-margin uk-grid uk-grid-stack\"\u003e\r\n\u003cdiv class=\"uk-width-1-1@m uk-first-column\"\u003e\r\n\u003ch1 class=\"uk-h1 uk-text-primary\"\u003eDrop Angle Meter DM 300\u003c\/h1\u003e\r\n\u003cp\u003e\u003cstrong\u003eCompact, high-quality instrument for analyzing wettability and spreadability of materials on the skin\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cdiv class=\"uk-margin\"\u003e\r\n\u003cp\u003eCharacterizing the shape of a drop of water on a surface and determining its \u003cspan\u003econtact angle\u003c\/span\u003e is a well-known method to analyze \u003cspan\u003ewettability\u003c\/span\u003e, skin’s free surface energy, its tension and its hydrophilic\/hydrophobic properties.\u003c\/p\u003e\r\nWettability is the ability of a liquid to maintain contact with a solid surface. Wettability can be wanted or not (repellence or spreadability).\u003c\/div\u003e\r\n\u003cdiv class=\"uk-margin\"\u003e \u003c\/div\u003e\r\n\u003cdiv class=\"uk-margin-small\"\u003e\r\n\u003cdiv class=\"uk-child-width-expand uk-grid\"\u003e\r\n\u003cdiv\u003e\r\n\u003cul id=\"js-524\" class=\"uk-switcher\"\u003e\r\n\u003cli class=\"el-item uk-active\"\u003e\r\n\u003ch3 class=\"el-title uk-margin\"\u003eMethod\u003c\/h3\u003e\r\n\u003cdiv class=\"el-content uk-margin\"\u003e\r\n\u003cp\u003eWhen a defined droplet is applied to a solid medium (here: skin), the liquid forms a certain shape (drop shape). The point at which the skin, liquid and air meet determines the contact angle.\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg title=\"drop angle measurement principle\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0704\/1427\/0699\/files\/DM_Measurement-principle.jpg?v=1723248293\" alt=\"drop angle measurement principle\" width=\"500\" height=\"176\"\u003e\u003c\/p\u003e\r\n\u003cp\u003eThe relationship between the contact angle, the skin surface free energy, the liquid surface tension and the interfacial tension between skin and liquid is defined by Young’s equation:\u003c\/p\u003e\r\n\u003cp\u003eγS = γL cosθ + γSL\u003c\/p\u003e\r\n\u003cp\u003eθ: Contact angle\u003cbr\u003eγS: Surface free energy of the solid\u003cbr\u003eγL: Surface tension of the liquid\u003cbr\u003eγSL: Interfacial tension between solid and liquid\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan\u003eThe larger the contact angle the lower the wettability, the lower the contact angle the better the wettability.\u003c\/span\u003eIn literature the relation between wettability of a substance and contact angle are defined as follows:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eContact angle \u0026lt; 90° = \u003cspan\u003ehydrophilic\u003c\/span\u003e surface\u003c\/li\u003e\r\n\u003cli\u003eContact angle \u0026gt; 90° = \u003cspan\u003ehydrophobic\u003c\/span\u003e surface\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nTranslated for the skin, \u003cspan\u003ehigher wettability indicates more moisture at the skin surface\u003c\/span\u003e. It is also linked to the sebum content of the skin as \u003cspan\u003esebum makes the skin more hydrophilic\u003c\/span\u003e. Dry skin shows correspondingly lower wettability. Skin surface free energy and wettability are also related. \u003cspan\u003eSkin with lower surface energy generally shows lower wettability properties.\u003cbr\u003e\u003c\/span\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0704\/1427\/0699\/files\/DM_wettability-text.jpg?v=1723248298\" alt=\"DM wettability text\" width=\"756\" height=\"94\"\u003e\u003c\/p\u003e\r\n\u003ctable\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003ehigh                         \u003c\/td\u003e\r\n\u003ctd\u003e\n\u003cspan\u003econtact angle\u003c\/span\u003e                                                         \u003c\/td\u003e\r\n\u003ctd\u003elow\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e low\u003c\/td\u003e\r\n\u003ctd\u003e\u003cspan\u003ewettability\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003ehigh\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e low\u003c\/td\u003e\r\n\u003ctd\u003e\u003cspan\u003eadhesiveness\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003ehigh\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e small\u003c\/td\u003e\r\n\u003ctd\u003e\u003cspan\u003eskin’s free energy\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003elarge\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cimg title=\"Drop Angle Meter DM 300\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0704\/1427\/0699\/files\/DM_arm-with-drop.jpg?v=1723248305\" alt=\"Drop Angle Meter DM 300\" width=\"385\" height=\"400\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eWith the Drop Angle Meter, the inner forearm is placed on a comfortable rest, which can be moved vertically and tilted in order to have the skin surface where the drop is applied to absolutely levelled to prevent the water from running or disintegrating. The compact system features a very \u003cspan\u003euniform diffuse LED light source\u003c\/span\u003e and a \u003cspan\u003ehigh-resolution camera\u003c\/span\u003e, which takes the macro image of the drop on the skin from the side, which is then analyzed in the software. All data, images, and even videos are saved in the database and can conveniently be filtered and exported.\u003c\/p\u003e\r\n\u003cp\u003eThe camera can be moved in x, y and z direction (up and down as well and back and forth and vertically), to perfectly match the best depth of focus for each drop size. The solid system features height adjustable feet to compensate unevenness of the working surface.\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003chr\u003e\r\n\u003cdiv class=\"uk-margin-small uk-margin-remove-top uk-text-center\"\u003e\u003ca class=\"el-content\" title=\"Download brochure\" target=\"_blank\"\u003e \u003cspan class=\"uk-text-middle\"\u003eDownload brochure\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"uk-grid-margin uk-grid\"\u003e \u003c\/div\u003e","brand":"Courage + Khazaka electronic GmbH","offers":[{"title":"Default Title","offer_id":45718234661099,"sku":"CK_DM300","price":0.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/1427\/0699\/files\/DM_arm-with-drop__10893.1677761567.1000.1200.jpg?v=1723248287","url":"https:\/\/medisa.com.au\/en-nz\/products\/skin-hair-analysis-products-c-k-scientific-products-other-devices-drop-angle-meter-dm-300-compact-high-quality-instrument-for-analyzing-wettability-and-spreadability-of-materials-on-the-skin","provider":"Medisa","version":"1.0","type":"link"}