week 3

This week, we are still reading the relevant reports and papers to obtain more details about the design. More recognition moiety which is different chemical source that can identify the target mental ions in the sewage, such as, Ca, Mg, Hg, Cd, Co. meanwhile, the details about the respond of each sensor unit to different ions are also measured. There will be several fluorescent reagents for one mental ion, which means if the first reagent is not able to detect the target ion, the other reagents of the same class will continue to do the same job, and these reagents are increasingly sensitive. Hence, the rough measurement of the concentration of the target ion is obtained.

At the same time, the basic structure of the design, which is based on the microfluid technology, has been sketched on the paper.

The details of the structure of the design are not figured out, for instance, the width of the channel, how to pull the sample water and the reagents into the reactive cell, furthermore, how much reagents should be used in the reaction.

The statistics of the results shown by the fluorescent reagents have not been considered. At the same time, the transform of the results from chemical signals to the processible data are not considered neither.