THE TECH-LICIOUS

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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">You may remember that a little while ago we reported on what looked like a pair of normal winter gloves, which in actual fact had bluetooth capabilities, allowing you to take calls simply by holding your thumb and forefinger up to your ear and mouth. The gloves, which can be charged in thirty minutes and give you twenty hours of talk time, are great if you want to avoid getting cold hands. However, if you love tinkering and building your own gadgets, did you know it is possible to build your own bluetooth gloves?</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;"><img alt="Hi-Fun Gloves" class="lazy alignnone size-full wp-image-18127 data-lazy-ready" data-lazy-src="http://news.filehippo.com/wp-content/uploads/2014/08/hi-fun-gloves.jpg" data-lazy-type="image" height="365" src="http://news.filehippo.com/wp-content/uploads/2014/08/hi-fun-gloves.jpg" style="background: rgb(236, 240, 244); display: inline; float: none; max-width: 708px; padding: 10px;" width="640" /></span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">That’s what Instructables user,  known as <a href="http://www.instructables.com/member/WiseGuy10x/" style="color: #0092dd;" target="_blank">WiseGuy10x</a> has done. Using a glove, a push button, soldering iron, soldering wire, wire and of course a bluetooth headset, he has been able to build his own bluetooth glove that allows you to take easily take calls, without actually getting your phone out of your pocket.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;"><img alt="bluetooth gloves" class="lazy alignnone size-full wp-image-18128 data-lazy-ready" data-lazy-src="http://news.filehippo.com/wp-content/uploads/2014/08/bluetooth-glove.jpg" data-lazy-type="image" height="477" src="http://news.filehippo.com/wp-content/uploads/2014/08/bluetooth-glove.jpg" style="background: rgb(236, 240, 244); display: inline; float: none; max-width: 708px; padding: 10px;" width="640" /></span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">The step-by-step guide is pretty straight forward and could perhaps be a great first project for any budding gadget hacker. For full instructions on how to build your very own ‘Bluetooth Glove: Version 3.0′, then check out the guide on<a href="http://www.instructables.com/id/Bluetooth-Glove-Version-30/" style="color: #0092dd;" target="_blank"> Instructables</a>.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">source-<a href="http://news.filehippo.com/2014/08/build-bluetooth-gloves-taking-calls/" target="_blank">tech beat</a></span><br />
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Build Your Own Bluetooth Gloves For Taking Calls

You may remember that a little while ago we reported on what looked like a pair of normal winter gloves, which in actual fact had bluetooth capabilities, allowing you to take calls simply by holding …

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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;"><img alt="A new system developed at Princeton University allows diabetics to check blood glucose lev..." height="358" src="http://images.gizmag.com/hero/laser-blood-glucose-diabetes.jpg" width="640" /></span><br />
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">Finger-prick tests to monitor blood glucose levels can be the bane of a diabetic's life. In a move that could put an end to such tests in the future, researchers at Princeton University have developed a non-invasive way to test blood glucose levels using a laser.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">Like a number of other blood glucose measuring research efforts we've seen in recent years, such as carbon nanotube "tattoos" and biochips that measure glucose in saliva, the Princeton team's method doesn't require direct analysis of a blood sample.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">Instead, the new approach detects the level of blood sugar by directing a specialized laser at a person's palm and measuring the amount of absorption by the sugar molecules in the person's body. Rather than the person's blood, the laser targets dermal interstitial fluid, which has a strong correlation with blood sugar.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">Instead of near-infrared light, which is used by many medical devices, the Princeton team's method uses mid-infrared light. This is because although near infrared light is not blocked by water, making it suitable for use in the human body, it interacts with a number of acids and chemicals in the skin, making it unsuitable for detecting blood sugar.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">However, the use of mid-infrared light presents its own problems – it is difficult to harness with standard lasers and requires relatively high power and stability to penetrate the skin and scatter off bodily fluid. The researchers found the answer in the form of a new type of device particularly capable of producing mid-infrared light called a quantum cascade laser.</span></div>
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<a href="http://www.gizmag.com/laser-blood-glucose-level-mesurement/33466/pictures#2" style="background-color: transparent; color: #1e8dd7; text-decoration: none;" target="_blank"><span style="font-family: Georgia, Times New Roman, serif; font-size: large;"><img alt="The new monitor uses a quantum cascade laser, instead of blood sample, to read blood sugar..." src="http://images.gizmag.com/inline/laser-blood-glucose-diabetes-1.jpg" style="border: 0px; vertical-align: bottom;" width="530" /></span></a></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">Quantum cascade lasers boast the ability to produce one of a number of frequencies by passing electrons through a "cascade" of semiconductor layers. Recent developments have also provided increased power and stability, allowing the researchers to produce mid-infrared light with the properties required to penetrate the skin.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">In testing the approach the researchers measured the blood sugar of three healthy subjects before and after eating 20 jellybeans and compared the results to measurements taken with a finger-prick test. These measurements were conducted repeatedly over a period of several weeks.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">Although the laser measurement readings produced average errors larger than the standard blood sugar monitors, the research hers said they remained within the clinical requirement for accuracy. Glucose monitors need to produce a reading within 20 percent of the patient's actual level and the early version of the new system met that standard with an accuracy of 84 percent.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">"It works now but we are still trying to improve it," said Sabbir Liakat, the lead author of a paper detailing the new approach.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">The experimental setup the team started with took up a moderate-sized workbench and required an elaborate cooling system to work. However, they have since solved the cooling problem, allowing the laser to work at room temperature, and will now look to shrinking the device.</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">"This summer, we are working to get the system on a mobile platform to take it places such as clinics to get more measurements," Liakat said. "We are looking for a larger dataset of measurements to work with."</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: large;">source-<a href="http://www.gizmag.com/laser-blood-glucose-level-mesurement/33466/" target="_blank">gizmag</a></span></div>
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Laser device detects blood glucose levels without the finger-prick

Finger-prick tests to monitor blood glucose levels can be the bane of a diabetic's life. In a move that could put an end to such tests in the future, researchers at Princeton University have develope…