ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 17(1), С. 2238 - 2249

Опубликована: Дек. 17, 2024

In situ monitoring of small molecule diffusion at solid–solid interfaces is challenging, even with sophisticated equipment. Here, novel chromogenic photonic crystal detectors enabled by integrating bioinspired structural color stimuli-responsive shape memory polymer (SMP) for detecting trace amounts interfacial are reported. Colorless macroporous SMP membranes deformed macropores can recover back to the "memorized" microstructures and corresponding iridescent colors when triggered diffused molecules. Systematic experimental theoretical investigations using various microscopes, optical spectroscopy modeling, spatio-resolved energy-dispersive X-ray spectroscopy, calculations confirm diffusion-induced mechanisms. Importantly, proof-of-concept sensing temporospatial-resolved bioactive ingredients used in drug delivery, including anti-inflammatory methyl salicylate pain relieving patches vitamin E barriers loaded contact lens, phthalates plasticizers commercial PVC products has been demonstrated. These innovative inexpensive, reusable, easy operate deploy both qualitative quantitative analyses, promising opening new avenues biomedical research, threat detection, plastics, food, environmental safety. Moreover, reconfigurable crystals micrometer-scale resolution, which great importance tunable integrated nanooptics, be fabricated diffusion-enabled microcontact printing.

Язык: Английский