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. 2022 Apr 12;28(32):e202104191. doi: 10.1002/chem.202104191

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© 2022 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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(a) Hypodermic needle. ^[126] Adapted with permission from Ref. [126]. Copyright 2007, John Wiley and Sons. (b) Micro grid structure fabricated by 2PP using I369 as 2PI. ^[128] Adapted with permission from Ref. [128] ©The Optical Society.