Biosensors are tools for understanding biological samples, very simple. Many of them try to convert a biological response or datum into an electrical signal, from which it can be analyzed. Because computers mostly are able to analyze digital data, it is important to be able to convert biological data to electrical signals. This has a wide range of applications, and these include medical, pure research, and transhumanism. The basics of biosensors have been around for quite some time, but recently the technology has come forward rapidly. Most biosensors consist of three distinct entities, a sensitive biological element, the transducer/detector element, and the signal processors.
Pure Science Applications
There are many ways this can be helpful. By gathering data from organism and tissues, we can learn more about the biological world around us. This helps us for its own sake. Biology is a branch of science, and like all sciences, there is a base, intrinsic value to learning about the universe. This is quite a beautiful thing, or at least many scientists say so. This also is the foundation for applied science, and there is a lot we can learn about the environment by gaining a deep appreciation for how the world works.
Biosensors are used in many specific medical applications as well, and for many people they are part of everyday life. For example, blood glucose and other molecule levels in the blood can be measured. This can be used to help treat and administer treatment for a variety of illnesses that involved abnormal chemical levels in the blood. For example, when drawing blood, the blood can be applied to a chemically active test strip, which then feeds information to a small digital computer. This can be used to display levels of glucose in a patient's blood.
Tran humanists are actually very interested in biosensors because they can be used to help develop the technology they are interested in. Modern biosensors are actually becoming capable of reading input from the brain. This is not very advanced or well developed yet, but theoretically, this could be used to create robotics enhanced prosthetic limbs. Alternatively, even other organs, such as ears or eyes- of course that type of technology is a long way off. There are other possible applications, such as reading brave waves or recording dreams, which would be a boon to the arts and psychological fields.