Table 1.

Materials of paper-based microfluidic chips [12,13,14].

Material	Characteristics	Applications
Filter paper	Suitable water absorption, easy to obtain, low cost, poor strength	Suitable for all kinds of paper chips, the most widely used paper-based materials
Nitrocellulose paper	It can bind and fix protein, and high cost	Detection based on Western blot reaction, colloidal gold test paper reaction zone
Glass fiber paper	Stable properties, not easy to break, high temperature resistance, corrosion resistance	Detection based on chemical reactions