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Biomimetic Antireflective Silicon Nanocones Array for Small Molecules Analysis |
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| Authors: | Yandong Wang Zhoufang Zeng Jie Li Lifeng Chi Xinhua Guo Nan Lu | |
| Institution: | 1. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, People’s Republic of China 2. College of Chemistry, Jilin University, Changchun, People’s Republic of China 3. The Fourth Hospital of Jilin University, Changchun, People’s Republic of China 4. Physikalisches of Institut and Center for Nanotechnology (CeNTech), Westf?lische Wilhelms-Universit?t, Münster, Germany |
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| Abstract: | Biomimetic antireflective silicon nanocones array is used for analysis of small molecules by mass spectrometry. The role of the absorbed laser energy and its distribution in the laser desorption/ionization process has been investigated by varying the antireflective features precisely. By optimizing the antireflective silicon array, the absorbed laser energy can be channeled completely into the desorption/ionization of analytes. The optimized silicon array exhibits excellent performance to detect peptide, amino acid, drug molecule, and carbohydrate without any interference in the low-mass region.  | |
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