After power optimization, we utilized the LAP as a photoinitiator to synthesize a PAA hydrogel using acrylamide (monomer) and bisacrylamide (crosslinking agent). PAA hydrogel was selected for its inherent hydrophilicity and optical transparency, making it suitable for a wide range of scientific applications. The optical transparency of the hydrogel are functions of the concentrations of monomers, cross-linkers, and the photoinitiator used. Hence, the experimental conditions were chosen to ensure rapid photopolymerization (0.2 to 2 seconds) while maintaining a viscosity close to that of water (1-2 cP) to avoid affecting the self-assembly process. The PAA gel was synthesized in a monomer solution containing acrylamide, N,N′methylenebis(acrylamide) as a crosslinker, and LAP as the photoinitiator. The sample preparation procedure is explained in detail in materials and methods section.