Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40824-023-00442-2/MediaObjects/40824_2023_442_Fig2_HTML.png)
A Representative SEM images of LTZ-PDA@AG hydrogels. B Infrared measurements of each component (AG, DA, PDA, LTZ, ALN, ALPN) in LTZ-PDA@AG hydrogel in the wavelength range of 500 to 4000 cm−1. C Variation of hydrogel temperature with power after 808 nm NIR. D The photothermal stability experiment of LTZ-PDA@AG hydrogels with 1.5W cm−2 NIR irradiation power. E Accumulated release of LTZ from LTZ-PDA@AG hydrogels with and without 808 nm NIR. F The changes of storage modulus (G') and loss modulus(G'') at different temperatures