eprintid: 10173621 rev_number: 7 eprint_status: archive userid: 699 dir: disk0/10/17/36/21 datestamp: 2023-07-20 10:27:57 lastmod: 2023-07-20 10:27:57 status_changed: 2023-07-20 10:27:57 type: article metadata_visibility: show sword_depositor: 699 creators_name: Hagger, Oliver SJ creators_name: Sener, M Emre creators_name: Khan, Imran creators_name: Estrin, Francis Lockwood creators_name: Agrotis, Stefanos creators_name: Handoko, Albertus D creators_name: Parkin, Ivan P creators_name: Caruana, Daren J title: Rapid single step atmospheric pressure plasma jet deposition of a SERS active surface ispublished: inpress divisions: UCL divisions: B04 divisions: C06 divisions: F56 note: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. abstract: A helium gas atmospheric pressure plasma jet (APPJ) is used to prepare a silver-based SERS substrate. The Raman enhancement from substrates created using APPJ compares well with two commercially available silver-based SERS substrates and an in-house prepared physical deposition of pre-synthesised silver nanoparticles. An aqueous solution of rudimentary silver salt was required as an ink to deposit zero valent silver in a single step with no post processing. An array of 16 × 16 silver ‘islands’ are printed on borosilicate glass, each island taking 5 seconds to print with a power of < 14 W to sustain the plasma. The SERS response was assessed using 4-mercaptobenzoic acid and rhodamine 6G as model analytes, with a calculated detection limit of 1 × 10−6 M. Also demonstrated is the removal of analyte from the surface after Raman measurement by exposure to helium APPJ doped with oxygen followed by hydrogen to restore zero baseline. This regeneration takes less than 10 seconds and allows for replicate measurements using the same SERS substrate. date: 2023-07-10 date_type: published publisher: Royal Society of Chemistry (RSC) official_url: https://doi.org/10.1039/D3MA00249G oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2037086 doi: 10.1039/d3ma00249g lyricists_name: Caruana, Daren lyricists_name: Parkin, Ivan lyricists_id: DJCAR76 lyricists_id: IPPAR53 actors_name: Kalinowski, Damian actors_id: DKALI47 actors_role: owner full_text_status: public publication: Materials Advances issn: 2633-5409 citation: Hagger, Oliver SJ; Sener, M Emre; Khan, Imran; Estrin, Francis Lockwood; Agrotis, Stefanos; Handoko, Albertus D; Parkin, Ivan P; Hagger, Oliver SJ; Sener, M Emre; Khan, Imran; Estrin, Francis Lockwood; Agrotis, Stefanos; Handoko, Albertus D; Parkin, Ivan P; Caruana, Daren J; - view fewer <#> (2023) Rapid single step atmospheric pressure plasma jet deposition of a SERS active surface. Materials Advances 10.1039/d3ma00249g <https://doi.org/10.1039/d3ma00249g>. (In press). Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10173621/1/Caruana_Rapid%20single%20step%20atmospheric%20pressure%20plasma%20jet%20deposition%20of%20a%20SERS%20active%20surface_AOP.pdf