On May 15, 2022, Dou, Shuzhen; Wang, Zhongshun; Chen, Qiye; Lu, Nan published an article.Electric Literature of 144-80-9 The title of the article was One-step fabrication of high-density Si nanotips as SALDI-MS substrate for highly sensitive detection. And the article contained the following:
The high sensitivity of surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) anal. depends on the enhancement of the signal intensity and the reduction of the background. Here, high-d. Si nanotips were prepared as SALDI-MS substrate by taking template-free reactive ion etching for sensitive detection. The high-d. Si nanotips act as tiny antennas to concentrate the laser energy and generate photo-induced electrons on a small area, which promotes desorption and ionization of mol., enhancing the signal intensity. Addnl., the high stability of Si nanotips under laser irradiation ensures low background interference. The applicability of the substrate was demonstrated by the detection of various small mols., e.g., fatty acids, amino acids, environmental pollutants and drugs. In addition, this substrate can be successfully applied for detecting trace small mols. in complex sample, such as 10-9 M verapamil in serum and 10-12 M crystal violet in lake water. Moreover, the banned fungicides left on the fish skin was also detected. The substrate is compatible with imaging, and the endogenous and exogenous substances in fingerprint were visualized by MS imaging. These results demonstrate the easily prepared high-d. Si nanotips SALDI-MS substrate is of high detection sensitivity and great value toward large-scale practical applications. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Electric Literature of 144-80-9
The Article related to silicon nanotip verapamil stearic acid sarcosine saldi ms fabrication, Biochemical Methods: Spectral and Related Methods and other aspects.Electric Literature of 144-80-9
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