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  Nanolayer laser absorber for femtoliter chemistry in polymer reactors

Zhang, J., Liu, Y., Ronneberger, S., Tarakina, N. V., Merbouh, N., & Löffler, F. F. (2022). Nanolayer laser absorber for femtoliter chemistry in polymer reactors. Advanced Materials, 34(8): 2108493. doi:10.1002/adma.202108493.

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 Urheber:
Zhang, Junfang1, Autor           
Liu, Yuxin1, Autor                 
Ronneberger, Sebastian1, Autor           
Tarakina, Nadezda V.2, Autor           
Merbouh, Nabyl, Autor
Löffler, Felix F.1, Autor           
Affiliations:
1Felix Löffler, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2385692              
2Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2522693              

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Schlagwörter: femtoliter chemistry; hematite film; laser-induced forward transfer; nano-absorber; solid phase synthesis
 Zusammenfassung: Laser-induced forward transfer (LIFT) has the potential to be an alternative approach to atomic force microscopy based scanning probe lithography techniques, which have limitations in high-speed and large-scale patterning. However, traditional donor slides limit the resolution and chemical flexibility of LIFT. Here, we propose a hematite nanolayer absorber for donor slides to achieve high-resolution transfers down to sub-femtoliters. Being wettable by both aqueous and organic solvents, this new donor significantly increases the chemical scope for the LIFT process. For parallel amino acid coupling reactions, the patterning resolution can now be increased more than five times (>111,000 spots/cm2 for hematite donor versus 20,000 spots/cm2 for standard polyimide donor) with even faster scanning (2 versus 6 ms per spot). Due to the increased chemical flexibility, we could explore other types of reactions inside ultrasmall polymer reactors: copper (I) catalyzed click chemistry and laser-driven oxidation of a tetrahydroisoquinoline derivative, suggesting the potential of LIFT for both deposition of chemicals and laser-driven photochemical synthesis in femtoliters within milliseconds. Since the hematite shows no damage after typical laser transfer, donors can be regenerated by heat treatment. These findings will transform the LIFT process into an automatable, precise, and highly efficient technology for high-throughput femtoliter chemistry.

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Sprache(n): eng - English
 Datum: 2021-12-092022
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1002/adma.202108493
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Titel: Advanced Materials
  Andere : Adv. Mater.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 34 (8) Artikelnummer: 2108493 Start- / Endseite: - Identifikator: ISSN: 0935-9648