Release date: 2015-12-11 For war doctors or doctors in remote villages, the lack of professional medical equipment conditions makes it difficult for them to judge the patient's eye injury. The research team from the University of Illinois in the United States has developed a new portable sensing device, OcuCheck, which can help determine the specific conditions of ocular trauma in a patient by measuring the vitamin C content in the patient's tears. Relevant research results have been published in the journal Science Report. Source: cnBeta chlorella powder,spirulina powder, blue spirulina powder , rice protein etc Organic Powder,Butterfly Pea Powder,Chaga Mushroom Extract,Hericium Erinaceus Extract Youth Biotech CO,. Ltd. , https://www.youtherb.com
The concentration of vitamin C (also known as L-ascorbic acid) in the Ocular tear film on the human eye is relatively low under normal conditions, while the acid concentration of the vitreous gel inside the eye is relatively high. The principle of the OcuCheck sensor is to sample the patient's tear film by measuring the vitamin C content and comparing it to normal values. If the acid concentration is higher than the normal value, it indicates that the ocular trauma causes the leakage of vitamin C from the inside of the eyeball to the surface of the eyeball. The seriousness of the ocular trauma can be determined by measuring the acid concentration.
The main part of the sensing instrument consists of several layers of material in a stack structure, including a layer of filter paper, a layer of 1 nm thick graphene, a polymer that can pass graphene, a gold electrode, ascorbate oxidase (Ascorbate) Oxidase). When the ascorbate in the sensor encounters ascorbic acid, the polymer in the material begins to pass through the graphene, the charge in the sensor changes, and the electrode measures the amount of vitamin C.
At present, OcuCheck has been applied to 16 eye surgery experiments in patients with ocular trauma. The researchers found that the instrument is highly accurate for the determination of ascorbic acid concentration. Although the instrument has not been tested on trauma patients, the accuracy of the instrument is not affected by blood, so the team predicts that the results will still be very good. The university's spin-off company, InnSight Technologies, is commercializing sensors, including adding operator interfaces and portable devices.