Abstract
Zinc ions play an important role in nerve conduction system, while maintaining a relative high concentration in the neuron populated area. The amount of the zinc ion content will also affects the vivo physiological cycle, immune function and behavioral memory. Zinc ions are very important transition elements in living organism, so a novel method of developing hydrogel film capable of detecting zinc ions is conducted. The hydrogel film is composed of HEMA and fluorescent molecule that can capture zinc ions. It also exhibits high permeability, transparency and flexibility, which made it perfect for uses in bio-sensing experiments. When the fluorescent molecules are fixed in HEMA, its absorption spectrum and optical excitation spectrum does not change. However, in experimental environments of different zinc ion concentration, the zinc ion detection film may have different photoluminescence strength. In order to detect zinc ion concentration more efficiently and rapidly, we use the e-spinning technology, which makes the thin film possess a higher porosity and permeable nature. Thus, the measurable limit of the zinc ion concentration detection is enhanced to a more precision level of 10-6 molar concentration.