[Retracted] Preparation of High-Refractive-Index Flexible Nanoparticle Laser Engraving Materials and Micro-Nano Sculpture Art

Table 1

Comparison of nanoparticle laser engraving methods.

Category	Preparation principle	Advantage	Disadvantage
DNA folding	Sculpting DNA into a shape with particles	Small size, mature technology	Need patience
Printing technology	Allow nanoparticles to build up on surfaces and guide them into a certain shape	Technology is similar to printing technology	High requirements for equipment
Micro contact printing technology	Embedding particles into objects with lamination material	Embedded operation	Lamination material is relatively rare
Freeze drying	Freeze particles into solids that maintain a certain shape	Simple to implement	Strict temperature control
Atmospheric drying	The particles are contracted by the tension on the surface of the object	Only need special solvents to achieve	Side effects of solvents