{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T06:58:31Z","timestamp":1770965911108,"version":"3.50.1"},"reference-count":55,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,5,2]],"date-time":"2025-05-02T00:00:00Z","timestamp":1746144000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"},{"start":{"date-parts":[[2025,5,2]],"date-time":"2025-05-02T00:00:00Z","timestamp":1746144000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"funder":[{"DOI":"10.13039\/501100000844","name":"European Space Agency","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000844","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Sci Rep"],"DOI":"10.1038\/s41598-025-97285-9","type":"journal-article","created":{"date-parts":[[2025,5,2]],"date-time":"2025-05-02T12:28:45Z","timestamp":1746188925000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Development of novel lubricant formulation for cleanroom and vacuum application"],"prefix":"10.1038","volume":"15","author":[{"given":"Fabian","family":"Sch\u00fcler","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreas","family":"Keller","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Markus","family":"Grebe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anthony","family":"Kent","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael","family":"Buttery","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Malgorzata","family":"Holynska","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,5,2]]},"reference":[{"key":"97285_CR1","doi-asserted-by":"crossref","unstructured":"a) Den, W., Hu, S. C., Garza, C. M., Zargar, O. A. & Varghese, K. C. Airborne molecular contamination: Recent developments in the understanding and minimization for advanced semiconductor device manufacturing; ECS J. Solid State Sci. Technol. 9, 064003 b) Khan, S., Lorenzelli, L., Dahiya, R. S. Technologies for printing sensors and electronics over large flexible substrates: a review; IEEE Sensors Journal 15 (6), 3164\u20133185 (2015). c) Esteves, S. C., Varghese, A. C., Worrilow, K. C. Cleanroom technology in ART clinics \u2013 a practical guide (CRC Press, 2016). d) Benalc\u00e1zar, D., Hensiek D. V., L\u00f3pez, E., Sandobal\u00edn, S., Llumiquinga, H. Development of a clean environment for nanosatellite integration and testing at the university level. in 7th International Engineering, Sciences and Technology Conference. Proceedings (IEEE, 2019). e) Abeel, A. C., Wooldridge, E. M., Calabrini, M., Ward, J. O., Schmeitzky, O. Overview of contamination control for the James Webb space telescope launch campaign. In SPIE Optical Engineering\u2009+\u2009Applications. Proceedings volume 12224 (SPIE, 2022). (2020).","DOI":"10.1149\/2162-8777\/aba080"},{"key":"97285_CR2","unstructured":"a) Holbrook, D. Controlling contamination: The origins of cleanroom technology; Hist. Technol. 25, 173\u2013191 b) Whyte, W. Operating a cleanroom: Risk management and control of contamination; Clean Air Contain. Rev. 50, 1\u20136 (2024). c) Whyte, W. Cleanroom design (John Wiley & Sons, 1999). (2009)."},{"key":"97285_CR3","unstructured":"Mowry, M. The true cost of bearing lubrication. Igus (2023). https:\/\/toolbox.igus.com\/wp-content\/uploads\/2023\/08\/The-true-cost-of-bearing-lubrication.pdf"},{"key":"#cr-split#-97285_CR4.1","doi-asserted-by":"crossref","unstructured":"a) Fischer, D., Moder, P. & Ehm, H. Investigation of predictive maintenance for semiconductor manufacturing and its impact on the supply chain. In 22nd IEEE International Conference on Industrial Technology. Proceedings (IEEE, 2021). b) Belingheri, M., Von, D., Tosellini, R. Programmatic risk management in space projects","DOI":"10.1109\/ICIT46573.2021.9453481"},{"key":"#cr-split#-97285_CR4.2","unstructured":"ESA Bulletin 103, 86-91 c) European Cooperation for Space Standardization (2000). https:\/\/ecss.nl\/standards\/ (2024)."},{"key":"97285_CR5","doi-asserted-by":"crossref","unstructured":"Mang, T. & Dresel, W. Lubricants and Lubrication (Wiley VCH, 2017).","DOI":"10.1002\/9783527645565"},{"key":"97285_CR6","unstructured":"Bartels, T., Mang, T. & Bobzin, K. Industrial Tribology (Wiley VCH, 2010)."},{"key":"97285_CR7","doi-asserted-by":"crossref","unstructured":"Jones, W. R. & Jansen, M. J. Space tribology. Nasa Tech. Memorandum 209924 (2000).","DOI":"10.1201\/9780849377877.ch31"},{"key":"97285_CR8","doi-asserted-by":"publisher","first-page":"503001","DOI":"10.1088\/0022-3727\/45\/50\/503001","volume":"45","author":"EW Roberts","year":"2012","unstructured":"Roberts, E. W. Space tribology: its role in spacecraft mechanisms. J. Phys. D: Apply Phys. 45, 503001 (2012).","journal-title":"J. Phys. D: Apply Phys."},{"key":"97285_CR9","unstructured":"Kent, A., Lewis, S. & Blanc, A. Guidelines for qualification and space application of new fluid lubricants. In 20th European Space Mechanisms and Tribology Symposium. ProceedingsESA, (2023)."},{"key":"97285_CR10","doi-asserted-by":"publisher","first-page":"2097","DOI":"10.1116\/1.575195","volume":"6","author":"RJ Miller","year":"1988","unstructured":"Miller, R. J. et al. Mechanisms of contaminant particle production, mitigation and adhesion. J. Vac Sci. Technol. A. 6, 2097\u20132102 (1988).","journal-title":"J. Vac Sci. Technol. A"},{"key":"97285_CR11","doi-asserted-by":"crossref","unstructured":"a) Gleirscher, M. et al. Accelerated thermo-catalytic degradation of perfluoropolyether lubricants for space applications; Lubricants 11, 81 b) Pouzar, J., Kostal, D., Sperka, P., Krupka, I., Hartl, M. Experimental study of space lubricant evaporation in a high vacuum environment. Vacuum 219, 112758 (2024). c) Bertrand, P.A. Chemical degradation of a multiply alkylated cyclopentane (MAC) oil during wear: Implications for spacecraft attitude control system bearings; Tribol. Lett. 49, 357\u2013370 (2013). d) Kuerten, D., Khader, I., Kailer, A. Tribochemical degradation of vacuum-stable lubricants: A comparative study between multialkylated cyclopentane and perfluoropolyether in a vacuum ball-on-disc and full-bearing tests; Lubr. Sci. 32, 183\u2013191 (2020). (2023).","DOI":"10.1002\/ls.1494"},{"key":"97285_CR12","doi-asserted-by":"crossref","unstructured":"a) Jiao, Z., Jiang, L., Sun, J., Huang, J. & Zhu, Y. Outgassing environment of spacecraft: an overview; IOP Conf. Ser.: Mater. Sci. Eng. 611, 012071 b) Fremerey, J. K. Residual gas: traditional understanding and new experimental results; Vacuum 53, 197\u2013201 (1999). c) Kang, Y., Den, W., Bai, H., Ko, F.-H. Direct quantitative analysis of phthalate esters as micro-contaminants in cleanroom air and wafer surfaces by auto-thermal desorption\u2013gas chromatography\u2013mass spectrometry; J. Chromatogr. A 1070, 137\u2013145 (2005). (2019).","DOI":"10.1016\/j.chroma.2005.02.055"},{"key":"97285_CR13","doi-asserted-by":"crossref","unstructured":"a) Buse, H., Schueler, F. & Hodulov\u00e1, E. Planar contact fretting test method applied to solid lubricants; Lubricants 9, 58 b) Rabinowicz, E. Lubrication of metal surfaces by oxide films; ASLE Transactions 10, 400\u2013407 (1967). c) Roberts, E.W. Space and vacuum tribology; Wear 136, 157\u2013167 (1990). (2021).","DOI":"10.3390\/lubricants9060058"},{"key":"97285_CR14","doi-asserted-by":"publisher","first-page":"93473","DOI":"10.1109\/ACCESS.2019.2927811","volume":"7","author":"Y Lu","year":"2019","unstructured":"Lu, Y., Shao, Q., Yue, H. & Yang, F. A review of the space environment effects on spacecraft in different orbits. IEEE Access. 7, 93473\u201393488 (2019).","journal-title":"IEEE Access."},{"key":"97285_CR15","doi-asserted-by":"crossref","unstructured":"Banks, B. A., Miller, S. & de Groh, K. Low Earth orbital atomic oxygen interactions with spacecraft materials. Nasa Tech. Memorandum 213400 (2004).","DOI":"10.1557\/PROC-851-NN8.1"},{"key":"97285_CR16","unstructured":"Fusaro, R. L. & Khonsari, M. M. Liquid lubrication for space application. NASA Tech. Memorandum 105198 (1992)."},{"key":"97285_CR17","doi-asserted-by":"publisher","first-page":"348","DOI":"10.1115\/1.2833944","volume":"121","author":"T Fukuchi","year":"1999","unstructured":"Fukuchi, T. Degradation of perfluoropolyether fluids with metal ions. ASME Trans. 121, 348\u2013351 (1999).","journal-title":"ASME Trans."},{"key":"97285_CR18","first-page":"19020202","volume":"2","author":"N Fu","year":"2019","unstructured":"Fu, N., Liu, Y., Ma, X. & Chen, Z. EUV lithography: State-of-the-art review. J. Microelectron. Manuf. 2, 19020202 (2019).","journal-title":"J. Microelectron. Manuf."},{"key":"97285_CR19","doi-asserted-by":"publisher","first-page":"2300867","DOI":"10.1002\/admi.202300867","volume":"11","author":"ES Choe","year":"2024","unstructured":"Choe, E. S. et al. Evaluation of H2 plasma-induced damage in materials for EUV lithography. Adv. Mater. Interfaces. 11, 2300867 (2024).","journal-title":"Adv. Mater. Interfaces"},{"key":"97285_CR20","doi-asserted-by":"publisher","first-page":"108943","DOI":"10.1016\/j.engfailanal.2024.108943","volume":"167","author":"D Senajova","year":"2025","unstructured":"Senajova, D. et al. Effect of radiation on lubrication performance and the consequences for mechanical equipment at CERN. Eng. Fail. Anal. 167, 108943 (2025).","journal-title":"Eng. Fail. Anal."},{"key":"97285_CR21","unstructured":"Senese, S. et al. ESA,., Meteosat Third Generation (MTG) Mechanisms: Impact on Instrument Performances. In 18th European Space Mechanisms and Tribology Symposium. Proceedings (2019)."},{"key":"97285_CR22","doi-asserted-by":"publisher","first-page":"012011","DOI":"10.1088\/1757-899X\/1287\/1\/012011","volume":"1287","author":"T Henry","year":"2023","unstructured":"Henry, T. & Holynska, M. Investigation of long-term storage of space materials for future constellation missions: study of Braycote 601 EF lubricant. IOP Conf. Ser. Mater. Sci. Eng. 1287, 012011 (2023).","journal-title":"IOP Conf. Ser. Mater. Sci. Eng."},{"key":"97285_CR23","doi-asserted-by":"publisher","first-page":"32","DOI":"10.3390\/lubricants8030032","volume":"8","author":"M Buttery","year":"2020","unstructured":"Buttery, M., Lewis, S., Kent, A., Bingley, R. & Cropper, M. Long-term storage considerations for spacecraft lubricants. Lubricants 8, 32 (2020).","journal-title":"Lubricants"},{"key":"97285_CR24","doi-asserted-by":"publisher","first-page":"72","DOI":"10.3390\/lubricants12030072","volume":"12","author":"F Sch\u00fcler","year":"2024","unstructured":"Sch\u00fcler, F. et al. Development of a space grease lubricant with long-term-storage properties. Lubricants 12, 72 (2024).","journal-title":"Lubricants"},{"key":"97285_CR25","unstructured":"Munafo, P. Braycote grease retains tribological properties for 17 years in controlled storage. NASA Eng. Saf. Cente Tech. Bull. (2007)."},{"key":"97285_CR26","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1007\/s11249-020-01372-z","volume":"69","author":"A Wolfberger","year":"2021","unstructured":"Wolfberger, A. et al. Effect of accelerated aging on the chemical signature and performance of a multiply-alkylated cyclopentane (MAC) lubricant for space applications. Tribol Lett. 69, 3 (2021).","journal-title":"Tribol Lett."},{"key":"97285_CR27","unstructured":"Roberts, E. W. Space Tribology Handbook 5th edn (ESR Technology Ltd, 2013)."},{"key":"97285_CR28","unstructured":"Rudnik, L. R. Synthetics, Mineral Oils and Bio-Based Lubricants 3rd edn (CRC, 2020)."},{"key":"97285_CR29","doi-asserted-by":"crossref","unstructured":"Kasai, P. H. & Perfluoropolyethers Intramolecular Disproportionation; Macromolecules 25, 6791\u20136799 (1992).","DOI":"10.1021\/ma00051a011"},{"key":"97285_CR30","doi-asserted-by":"publisher","first-page":"197","DOI":"10.1002\/jsl.22","volume":"23","author":"PT Hellman","year":"2006","unstructured":"Hellman, P. T., Gschwender, L. & Snyder, C. E. Jr. A review of the effect of metals on the thermo-oxidative stability of perfluoropolyalkylether lubricants. J. Synth. Lubr. 23, 197\u2013210 (2006).","journal-title":"J. Synth. Lubr"},{"key":"97285_CR31","doi-asserted-by":"publisher","first-page":"222","DOI":"10.1007\/s40544-013-0019-x","volume":"1","author":"Z Song","year":"2013","unstructured":"Song, Z., Liang, Y., Fan, M., Zhou, F. & Liu, W. Lithium-based ionic liquids as novel lubricant additives for multiply alkylated cyclopentanes (MACs). Friction 1, 222\u2013231 (2013).","journal-title":"Friction"},{"key":"97285_CR32","doi-asserted-by":"publisher","first-page":"335","DOI":"10.3103\/S106836661804013X","volume":"39","author":"MV Prozhega","year":"2018","unstructured":"Prozhega, M. V., Albagachiev, A. Y. & Smirnov, N. I. Smirnov, N. N. Lubricating materials for mechanisms operating in space. J. Frict Wear. 39, 335\u2013340 (2018).","journal-title":"J. Frict Wear"},{"key":"97285_CR33","doi-asserted-by":"publisher","first-page":"377","DOI":"10.1007\/s12567-021-00348-6","volume":"13","author":"A Wolfberger","year":"2021","unstructured":"Wolfberger, A., Hausberger, A. & Schl\u00f6gl, Holynska, M. Assessment of the chemical gradation of PFPE lubricants and greases for space applications: implications for long-term on-ground storage. Ceas Space J. 13, 377\u2013388 (2021).","journal-title":"Ceas Space J."},{"key":"#cr-split#-97285_CR34.1","doi-asserted-by":"crossref","unstructured":"a) Waheed, S. et al. Ionic liquids as lubricants. An overview of recent developments. J. Mol. Struct. 1301, 137307 b) Liu, M. et al. The application of ionic liquids in the lubrication field: Their design, mechanisms, and behaviors. Lubricants 12, 24 (2024). c) Zhou, Y.","DOI":"10.3390\/lubricants12010024"},{"key":"#cr-split#-97285_CR34.2","doi-asserted-by":"crossref","unstructured":"Qu, J. Ionic liquids as lubricant additives: A review. ACS Appl. Mater. Interfaces 9, 3209-3222 (2017). (2024).","DOI":"10.1021\/acsami.6b12489"},{"key":"97285_CR35","doi-asserted-by":"crossref","unstructured":"a) Li, Z. et al. Superlubricity of ionic liquids at metal interfaces induced by tribochemical reactions. Appl. Surf. Sci., 162778 b) Rohlmann, P. Tribochemistry of imidazolium and phosphonium bis(oxalate)borate ionic liquids: Understanding the differences. Tribol. Int. 181, 108263 (2023). c) Song, W. et al. Lubrication mechanism of a strong tribofilm by imidazolium ionic liquid. Friction 11, 425\u2013440 (2023). (2025).","DOI":"10.1016\/j.triboint.2023.108263"},{"key":"97285_CR36","unstructured":"a) Nautiyal, H. et al. The state of art on lubrication methods in space environment. Phys. Scri. 99, 022003 b) Okabe, T., Somaya, K. Development of a wafer cooling system using ionic liquid under high vacuum condition for semiconductor fabrication device. Vacuum 229, 113570 (2024). c) Song, J. Research progress of ionic liquids as lubricants. ACS Omega 6, 29345\u201329349 (2021). d) D\u00f6rr, N. et al. Five-stage selection procedure of ionic liquids for lubrication of steel-steel contacts in space mechanisms. Tribol. Lett. 67, 73 (2019). e) Nyberg, E., Schneidhofer, C., Pisarova, L., D\u00f6rr, N. Minami, I. Ionic liquids as performance ingredients in space lubricants. Molecules 26, 1013 (2021). f) Nancarrow, P., Mohammed, H. Ionic liquids in space technology \u2013 current and future trends. Chem. Bio. Eng. Rev. 4, 106\u2013119 (2017). (2024)."},{"key":"97285_CR37","doi-asserted-by":"publisher","first-page":"194","DOI":"10.3390\/lubricants12060194","volume":"12","author":"A Keller","year":"2024","unstructured":"Keller, A. et al. Practical evaluation of ionic liquids for application as lubricants in cleanrooms and under vacuum conditions. Lubricants 12, 194 (2024).","journal-title":"Lubricants"},{"key":"97285_CR38","unstructured":"ECSS-Q-ST-70\u00a0C. Space product assurance. Materials, mechanical parts and processes. (2009). http:\/\/esmat.esa.int\/ECSS-Q-ST-70C.pdf"},{"key":"97285_CR39","doi-asserted-by":"crossref","unstructured":"a) Dias, D., Bons, J., Kumar, A., Kabir, M. H. & Liang, H. Forever chemicals, per-and polyfluoroalkyl substances (PFAS), in lubrication. Lubricants 12, 114 b) Canter, N. PFAS: Many questions, few answers. Tribology & Lubrication Technology 80, 14\u201320 (2024). c) Figui\u00e8re, R., Miaz, L. T., Savidou, E., Cousins, I. T. An overview of potential alternatives for the multiple uses of per- and polyfluoroalkyl substances. Environ. Sci. Technol. 59, 2031\u20132042 (2025). (2024).","DOI":"10.3390\/lubricants12040114"},{"key":"97285_CR40","unstructured":"GfT worksheet no. 7: Tribology - wear, friction - definitions, terms, testing; Society for Tribology. (2009)."},{"key":"97285_CR41","first-page":"15","volume":"178","author":"M Grebe","year":"2023","unstructured":"Grebe, M. Tribology 4.0: from Da Vinci to digitalization. Lube Mag. 178, 15\u201317 (2023).","journal-title":"Lube Mag"},{"key":"97285_CR42","unstructured":"a) DIN 51834-1; Testing of lubricants - general principles for the tribological testing of lubricants using a linear-oscillation test machine. Beuth Verlag: Berlin, Germany. b) DIN 51834-2; Testing of lubricants - tribological test in the translatory oscillation apparatus - part 2: Determination of friction and wear data for lubricating oils. Beuth Verlag: Berlin, Germany (2017). c) ASTM D7421-23; Standard test method for determining extreme pressure properties of lubricating oils using high-frequency, linear-oscillation (SRV) test machine. ASTM International (2023). (2010)."},{"key":"97285_CR43","unstructured":"Buttery, M. Spiral Orbit Tribometer; Assessment of space lubricants. In 13th European Space Mechanisms and Tribology Symposium. ProceedingsESA, (2009)."},{"key":"97285_CR44","unstructured":"Buttery, M. et al. ESA,. Recent observations on the performance of hybrid ceramic tribocontacts. In 16th European Space Mechanisms and Tribology Symposium. Proceedings (2015)."},{"key":"97285_CR45","unstructured":"ISO 16290. Space systems \u2013 definition of the technology readiness levels (TRLs) and their criteria of assessment. ISO Int. (2013)."},{"key":"97285_CR46","unstructured":"DIN 51810-1. Testing of lubricants \u2013 testing rheological properties of lubricating greases \u2013 part 1: determination of shear viscosity by rotational viscosimeter and the system of cone\/plate. Beuth Verlag: Berlin Ger. (2017)."},{"key":"97285_CR47","unstructured":"ASTM D2270-10. Standard practice for calculating viscosity index from kinematic viscosity at 40 and 100\u00b0C. ASTM Int. (2010)."},{"key":"97285_CR48","unstructured":"DIN 51810-2. Testing of lubricants \u2013 testing rheological properties of lubricating greases \u2013 part 2: determination of flow point using an oscillatory rheometer with a parallel-plate measuring system. Beuth Verlag: Berlin Ger. (2017)."},{"key":"97285_CR49","unstructured":"ASTM D445-25. Standard test method for kinematic viscosity of transparent and opaque liquids (and calculation of dynamic viscosity). ASTM Int. (2024)."},{"key":"97285_CR50","unstructured":"ASTM G1-03. Standard practice for preparation, cleaning, and evaluating corrosion test specimens. ASTM Int. (2017)."},{"key":"97285_CR51","unstructured":"ASTM D6184-17. Standard test method for oil separation from lubricant grease (conical sieve method). ASTM Int. (2022)."},{"key":"97285_CR52","unstructured":"ASTM D97-17. b; standard test method for pour point of petroleum products. ASTM Int. (2022)."},{"key":"97285_CR53","unstructured":"Buttery, M. et al. ESA,. Fomblin Z25: A New Method for its Degradation Assessment & Proposal for Safe Operation in Space. In 15th European Space Mechanisms and Tribology Symposium. Proceedings (2013)."}],"container-title":["Scientific Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-97285-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-97285-9","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-97285-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,5,2]],"date-time":"2025-05-02T12:29:18Z","timestamp":1746188958000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-97285-9"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,5,2]]},"references-count":55,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2025,12]]}},"alternative-id":["97285"],"URL":"https:\/\/doi.org\/10.1038\/s41598-025-97285-9","relation":{},"ISSN":["2045-2322"],"issn-type":[{"value":"2045-2322","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,5,2]]},"assertion":[{"value":"1 February 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"3 April 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"2 May 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"15407"}}