Abstract：
We here report the formation of a turbid-gel phase in acrylic cuvettes upon exposure to pure Dimethyl Sulfoxide (DMSO) at room temperature. The observed phenomenon occurred over a 10 h to 14 h incubation in the presence of environmental oxygen. After the turbid gel was removed from the cuvette, it became a white solid exhibiting unique emission behavior. The formation of the turbid-gel phase was accelerated upon exposure to UV 295 LED pulses of light from 6 h to 8 h. Surprisingly, subsequent exposure of the white solid to a few microliters of pure DMSO and vortexing resulted in its transformation into a transparent gel state in just a few minutes, eventually acquiring transparent and liquid properties. Additionally, the white-solid phase can load other molecules, such as Resveratrol and Quercetin, leading to shifts in the respective emission spectra compared with the same molecule in liquid and pure DMSO. These novel findings highlight the interaction between UV photons, oxygen, DMSO and Acrylic, and potentially distort fluorescence spectroscopy experiments.
摘要：
我们在这里报告了在室温下暴露于纯二甲基亚砜（DMSO）后，丙烯酸比色皿中混浊的凝胶相的形成。观察到的现象发生在环境氧气存在下的10h至14h孵育期间。从比色皿中取出浑浊的凝胶后，它变成了白色固体，表现出独特的发射行为。在暴露于UV295LED脉冲的光从6h到8h时,混浊凝胶相的形成被加速。令人惊讶的是,随后将白色固体暴露于几微升的纯DMSO和涡旋导致其在短短几分钟内转化为透明凝胶状态。最终获得透明和液体的特性。此外,白色固相可以负载其他分子，如白藜芦醇和槲皮素，导致与液体和纯DMSO中的相同分子相比各自的发射光谱发生偏移。这些新发现突出了紫外光子之间的相互作用，氧气,DMSO和丙烯酸，并可能扭曲荧光光谱实验。
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