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The University of Edinburgh is one of the world’s top 20 institutions of higher education.....
- Recruiter: The University of Edinburgh
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Principal Electrical Engineer - Power Join our Electrical Power team and help design the self-contained generation and distribution system for the Successor submarine - a new generation of submarine designed to carry the UK's independent nuclear deterrent
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- £33000 - £39000 per annum
Operations Supervisor - (Mechanical/Electrical/Instrumentation) Salary: Circa £33k - 39k dependant on experience + vehicle and great additional benefits (share scheme, pension, potential bonus).Location: Wisbech - Cambridgeshire We currently have an excit
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What?s the opportunity? There are fantastic opportunities in Systems Design for engineers to work within Future Systems. These are highly visible, fast paced roles, in...
- Recruiter: MBDA
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- Shropshire, England, Telford
PLM Engineer (Product Lifecycle Management) Would you like a varied role that involves working across all engineering functions within BAE Systems Land UK? We currently have a vacancy for a PLM Engineer at our site in Telford with occasional travel within
Graphene armband monitors diabetes through sweat
The graphene patch is more convenient than current treatments available to diabetics
A wearable graphene-based patch has been developed that allows accurate diabetes monitoring and feedback therapy by analysing the sweat of the wearer.
The device’s detecting capabilities are achieved by integrating electrochemically active and soft functional materials on a hybrid of gold-doped graphene and a serpentine-shape gold mesh.
Its pH and temperature monitoring functions enable systematic corrections of sweat glucose measurements, as the enzyme-based glucose sensor is affected by pH (blood acidity levels) and temperature.
South Korea’s Institute for Basic Science (IBS) has been developing the device because diabetes represents a significant health hazard in the country. Roughly three million Koreans are affected, a figure that is increasing due to dietary patterns and an aging society.
The patch is said to be more convenient than the current treatments available to diabetics which are often painful, inconvenient and costly. Regular visits to a doctor and home testing kits are also needed to record glucose levels.
KIM Dae-Hyeong, a scientist from IBS’s Center for Nanoparticle Research, describes the vast array of components used in the patch: “Our wearable GP-based device is capable of not only sweat-based glucose and pH monitoring, but also controlled transcutaneous drug delivery through temperature-responsive microneedles.
“Precise measurement of sweat glucose concentrations are used to estimate the levels of glucose in the blood of a patient. The device retains its original sensitivity after multiple uses, thereby allowing for multiple treatments.
“The connection of the device to a portable wireless power supply and data transmission unit enables the point-of-care treatment of diabetes.”
Explaining how the device works, Dae-Hyeong said: “The patch is applied to the skin where sweat-based glucose monitoring begins on sweat generation.
“The humidity sensor monitors the increase in relative humidity (RH). It takes an average of 15 minutes for the sweat-uptake layer of the patch to collect sweat and reach RH over 80 per cent, at which time glucose and pH measurements are initiated.”
A group of Israeli engineers recently demonstrated a smartphone connected washable smart sock fitted with dozens of pressure sensors that can help diabetes sufferers avoid foot amputation.
Last year, a new type of diabetes pump was demonstrated that mimics the pancreas by using sensors to anticipate blood sugar levels to prevent hypoglycaemic attacks.
"As the dust settles after the referendum result, we consider what happens next. We also look forward to an international summer of sport."
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