{"id":84446,"date":"2019-03-12T13:45:34","date_gmt":"2019-03-12T11:45:34","guid":{"rendered":"https:\/\/www.technion.ac.il\/blog\/super-sensitive-sensor-tastes-and-sniffs\/"},"modified":"2019-03-12T13:45:34","modified_gmt":"2019-03-12T11:45:34","slug":"super-sensitive-sensor-tastes-and-sniffs","status":"publish","type":"post","link":"https:\/\/www.technion.ac.il\/en\/blog\/super-sensitive-sensor-tastes-and-sniffs\/","title":{"rendered":"Super Sensitive Sensor \u201cTastes\u201d and \u201cSniffs\u201d"},"content":{"rendered":"

Super Sensitive, Groundbreaking Smart Sensor \u201cTastes\u201d and \u201cSniffs\u201d<\/b><\/span><\/p>\n

\"Professor
Professor Hossam Haick<\/figcaption><\/figure>\n

Researchers from the Technion-Israel Institute of Technology in Haifa have developed an innovative sensing system capable of identifying and distinguishing different stimuli. The system is based on origami (the art of paper folding) combined with ink developed at the Technion.<\/strong> <\/span><\/p>\n

The Israeli researchers have developed an innovative sensing system capable of identifying and distinguishing different stimuli. The research, just published in the journal <\/span>Nature Communications<\/i><\/b>, was led by Professor Hossam Haick of the Technion\u2019s Wolfson Faculty of Chemical Engineering and the Russell Berrie Nanotechnology Institute, and Dr. Min Zhang, who did his post-doctoral fellowship with him. Dr. Zhang is currently an associate professor at East China Normal University.<\/span><\/p>\n

\u201cToday, there is significant demand for multi-purpose sensing systems for specific purposes,\u201d said Prof. Haick. \u201cThese systems have great potential as applications in medicine, counterterrorism, food safety, environmental monitoring, \u2018The Internet of things\u2019 and more. The problem is that existing technologies, such as gas chromatography, have many disadvantages, including high cost.\u201d<\/span><\/p>\n

The challenge facing the researchers was to develop a single system sensitive enough to identify and distinguish among different stimuli. They say they developed a solution inspired by nature. \u00a0\u201cWhen we think about the human sensory system, we think of a whole that brings all the data to the brain in a format that it understands. That inspired our development, which is meant to concentrate in a different place all the environmental data we want to monitor. It is a multi-purpose sensory system that absorbs the stimuli and distinguishes among them.\u201d<\/span><\/p>\n

\"(L-R)
(L-R) Dr. Min Zhang and Professor Hossam Haick<\/figcaption><\/figure>\n

The system developed by Prof. Haick and Dr. Zhang, called \u201corigami hierarchical sensor array\u201d (OHSA), is an integrated array of grouped sensors written on the target object in conductive ink that the two scientists developed. \u00a0It is a single device that demonstrates sensing abilities and detecting physical and chemical stimuli \u2013 temperature, humidity, light and volatile organic particles \u2013 at high resolution of time and space. Since it also distinguishes between isomers and chiral en<\/span>antiomers (<\/span>forms that are mirror images of each other), it paves new avenues for medical diagnosis. It is worth noting that volatile particle monitoring can be useful in a variety of areas including the diagnosis of disease and monitoring of dangerous substances.<\/span><\/p>\n

There are many advantages to this unique ink \u2013 its low price, the ability to produce it in large quantities and the simplicity of its application on the target surfaces. The researchers conducted experiments that included control groups (other types of ink) and <\/span>showed that the special ink attaches itself tightly to materials such as aluminum foil; glass; photo paper; <\/span>Kapton\u00a0tape (a\u00a0<\/span>polyimide<\/span><\/a>\u00a0film developed by\u00a0<\/span>DuPont<\/span><\/a>\u00a0in the late 1960s that remains stable across a wide range of temperatures and is used in, among other things, flexible printed circuits and\u00a0<\/span>thermal blankets used on spacecraft, satellites, and various space instruments<\/span><\/a>; nitrile (the material used to make disposable gloves); and polydimethylsiloxane (PDMS, used to make contact lenses and for medical technologies and cosmetics). <\/span><\/p>\n

The ink also allows writing on human skin and nails in a kind of conductive tattoo, waterproof – which may allow, for example, constant monitoring of relevant physiological variables. In addition, it can also be used on human skin and fingernails as a kind of water-resistant, conductive tattoo \u2013 which can make possible, for example, constant monitoring of relevant physiological variables. <\/span><\/p>\n

\u201cWe can say that our system identifies the \u2018fingerprints\u2019 of chemical and physical stimuli and supplies information about them,\u201d said Prof. Haick. Its low cost will make possible its application in many places, including poor areas, for medical and other uses.\u201d<\/span><\/p>\n

Click <\/b>here<\/a> <\/strong><\/span>for the paper in <\/b>Nature Communications<\/i><\/b><\/p>\n

\"Optical
Optical Microscope images of composite made of melanin-analogous polydopamine and graphene, coating (a) paper; and (b) flexible substrate made of Kapton<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

Super Sensitive, Groundbreaking Smart Sensor \u201cTastes\u201d and \u201cSniffs\u201d Researchers from the Technion-Israel Institute of Technology in Haifa have developed an innovative sensing system capable of identifying and distinguishing different stimuli. The system is based on origami (the art of paper folding) combined with ink developed at the Technion. The Israeli researchers have developed an innovative… Continue Reading Super Sensitive Sensor \u201cTastes\u201d and \u201cSniffs\u201d<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-84446","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"\nSuper Sensitive Sensor \u201cTastes\u201d and \u201cSniffs\u201d - \u05d4\u05d8\u05db\u05e0\u05d9\u05d5\u05df-\u05de\u05db\u05d5\u05df \u05d8\u05db\u05e0\u05d5\u05dc\u05d5\u05d2\u05d9 \u05dc\u05d9\u05e9\u05e8\u05d0\u05dc<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.technion.ac.il\/en\/blog\/super-sensitive-sensor-tastes-and-sniffs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Super Sensitive Sensor \u201cTastes\u201d and \u201cSniffs\u201d - \u05d4\u05d8\u05db\u05e0\u05d9\u05d5\u05df-\u05de\u05db\u05d5\u05df \u05d8\u05db\u05e0\u05d5\u05dc\u05d5\u05d2\u05d9 \u05dc\u05d9\u05e9\u05e8\u05d0\u05dc\" \/>\n<meta property=\"og:description\" content=\"Super Sensitive, Groundbreaking Smart Sensor \u201cTastes\u201d and \u201cSniffs\u201d Researchers from the Technion-Israel Institute of Technology in Haifa have developed an innovative sensing system capable of identifying and distinguishing different stimuli. 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