【大学化学】doi: 10.12461/PKU.DXHX202403076
酒,乃天地之精华,文化之载体,品一杯佳酿,如同品一段历史,品一份人生。白酒在各种场合中发挥着重要作用,它不仅仅是一种饮品,还寄托着人们对美好生活的向往和追求。本文采用生动形象的对话形式,通俗易懂地描述了白酒酿制的五个主要过程——选料、糖化、发酵、蒸馏和陈酿,重点介绍了其中的主要化学成分以及酿制过程中的化学反应,白酒的酿造过程体现了匠心独运的精神以及酒文化的博大精深。通过品味白酒,可以更好地感悟人生的哲理和智慧。好酒需要陈放才能更加醇香,人生也需要经历岁月的沉淀才能更加丰富多彩。
【无机化学学报】doi: 10.11862/CJIC.20250112
In this study, a self-calibrating near-infrared fluorescence probe was designed and synthesized based on the dual-fluorophore strategy utilizing methylene blue and coumarin. The probe utilized methylene blue (emission spectrum range: 640-740 nm) and coumarin fluorophore (emission spectrum range: 440-600 nm) as signal output units, thereby achieving effective spectral separation and highly selective detection of HClO. Under physiological pH conditions, HClO triggers an oxidation-cleavage reaction, releasing methylene blue and coumarin, which emit distinct red and green fluorescence, respectively. This dualemission feature enabled rapid HClO detection with two-channel detection limits of 25.13 nmol·L-1 (green channel) and 31.55 nmol·L-1 (red channel). Furthermore, in cell imaging experiments, this probe demonstrated excellent cell membrane permeability and low cytotoxicity, successfully enabling the monitoring of both endogenous and exogenous HClO in living cells. By incorporating a two-channel self-calibration system, the probe effectively mitigated signal variations caused by instrumental or environmental interference, substantially improving detection sensitivity and reliability.