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These composites are designed to combine the intrinsic high thermal and chemical stability of polyimides, as well as their well-established radiation resistance reported in the literature, with the electrical functionality of graphene. PI\/GNP membranes are fabricated by casting dispersions of graphene nanoplatelets within the polyimide solution, using a green and bio-based solvent (dimethyl isosorbide), followed by thermal treatment in vacuum. The effect of UV-C irradiation is investigated as a sterilization-relevant stress condition, showing that the PI\/GNP composites retain their main chemical and surface characteristics after exposure. In addition, irradiation is associated with an improvement in the electrical response, suggesting that the conductive network formed by graphene nanoplatelets remains effective after treatment. Overall, this study highlights the PI\/GNP composites as robust and electrically functional candidate materials for dry electrode applications in harsh environments. By combining chemical stability, thermal resistance, a stable surface and electrical conductivity, these membranes emerge as promising candidates for future health monitoring applications on Earth and during long-term missions in space.<\/jats:p>","DOI":"10.3390\/polym18182222","type":"journal-article","created":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T08:10:23Z","timestamp":1789373423000},"page":"2222","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Robust Polyimide\/Graphene Composites as Electrically Functional Materials for Space-Compatible Biomedical Applications"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-2275-651X","authenticated-orcid":false,"given":"Martina","family":"Campanella","sequence":"first","affiliation":[{"name":"Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"investigation","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-3855-8213","authenticated-orcid":false,"given":"Francesca","family":"Blondelli","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"investigation","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8394-328X","authenticated-orcid":false,"given":"Elisa","family":"Toto","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"validation","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9159-709X","authenticated-orcid":false,"given":"Susanna","family":"Laurenzi","sequence":"additional","affiliation":[{"name":"Sapienza Aerospace Structures Laboratory, Sapienza University of Rome, Via Salaria 851, 00138 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"validation","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2736-8580","authenticated-orcid":false,"given":"Maria Gabriella","family":"Santonicola","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"conceptualization","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"funding-acquisition","vocabulary":"credit"},{"role":"validation","vocabulary":"credit"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Mircea, A.A., Pistritu, D.V., Fortner, A., Tanca, A., Liehn, E.A., and Bucur, O. (2024). Space Travel: The Radiation and Microgravity Effects on the Cardiovascular System. Int. J. Mol. Sci., 25.","DOI":"10.3390\/ijms252111812"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Krittanawong, C., Singh, N.K., Scheuring, R.A., Urquieta, E., Bershad, E.M., Macaulay, T.R., Kaplin, S., Dunn, C., Kry, S.F., and Russomano, T. (2023). Human Health during Space Travel: State-of-the-Art Review. Cells, 12.","DOI":"10.3390\/cells12010040"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1016\/j.bios.2018.03.062","article-title":"Advanced biosensors for monitoring astronauts\u2019 health during long-duration space missions","volume":"111","author":"Roda","year":"2018","journal-title":"Biosens. Bioelectron."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"491","DOI":"10.3390\/life4030491","article-title":"Space Radiation: The Number One Risk to Astronaut Health beyond Low Earth Orbit","volume":"4","author":"Chancellor","year":"2014","journal-title":"Life"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"635","DOI":"10.1016\/j.compbiomed.2010.05.001","article-title":"A biomedical sensor system for real-time monitoring of astronauts\u2019 physiological parameters during extra-vehicular activities","volume":"40","author":"Fei","year":"2010","journal-title":"Comput. Biol. Med."},{"key":"ref_6","first-page":"190","article-title":"Advancements in health monitoring technologies for astronauts in deep space missions: A Review","volume":"47","author":"Gupta","year":"2025","journal-title":"Life Sci. Space Res."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"77","DOI":"10.1016\/j.wees.2024.12.007","article-title":"Flexible wearable device applications for monitoring astronaut health: Current status and challenges","volume":"2","author":"Wang","year":"2025","journal-title":"Wearable Electron."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Kim, H., Kim, E., Choi, C., and Yeo, W.-H. (2022). Advances in Soft and Dry Electrodes for Wearable Health Monitoring Devices. Micromachines, 13.","DOI":"10.3390\/mi13040629"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1088\/0967-3334\/21\/2\/307","article-title":"A direct comparison of wet, dry and insulating bioelectric recording electrodes","volume":"21","author":"Searle","year":"2000","journal-title":"Physiol. Meas."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1186\/s13756-025-01669-5","article-title":"Is UV-C light disinfection suitable as a disinfection method for medical devices: A scoping review","volume":"15","author":"Halmans","year":"2025","journal-title":"Antimicrob. Resist. Infect. Control"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Amza, C.G., Zapciu, A., Baciu, F., Vasile, M.I., and Popescu, D. (2021). Aging of 3D Printed Polymers under Sterilizing UV-C Radiation. Polymers, 13.","DOI":"10.3390\/polym13244467"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Amza, C.G., Zapciu, A., Baciu, F., and Radu, C. (2023). Effect of UV-C Radiation on 3D Printed ABS-PC Polymers. Polymers, 15.","DOI":"10.3390\/polym15081966"},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Toto, E., Lambertini, L., Laurenzi, S., and Santonicola, M.G. (2024). Recent Advances and Challenges in Polymer-Based Materials for Space Radiation Shielding. Polymers, 16.","DOI":"10.3390\/polym16030382"},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Laurenzi, S., Zaccardi, F., Toto, E., Santonicola, M.G., Botti, S., and Scalia, T. (2024). Fused filament fabrication of polyethylene\/graphene composites for in-space manufacturing. Materials, 17.","DOI":"10.3390\/ma17081888"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"11647","DOI":"10.1002\/pc.29707","article-title":"Shape memory polymer and composites for space applications: A review","volume":"46","author":"Yadav","year":"2025","journal-title":"Polym. Compos."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"e00999","DOI":"10.1002\/admt.202500999","article-title":"Polymer Materials and Their Composites for On-Orbit Manufacturing","volume":"11","author":"Song","year":"2026","journal-title":"Adv. Mater. Technol."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Tserpes, K., and Sioutis, I. (2025). Advances in Composite Materials for Space Applications: A Comprehensive Literature Review. Aerospace, 12.","DOI":"10.3390\/aerospace12030215"},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Toto, E., Santonicola, M.G., Mancini, M.C., and Laurenzi, S. (2017, January 21\u201323). Ultraviolet-sensing surfaces based on hybrid nanocomposites for radiation monitoring systems. Proceedings of the 2017 IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace), Padua, Italy.","DOI":"10.1109\/MetroAeroSpace.2017.7999599"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"103557","DOI":"10.1016\/j.cis.2025.103557","article-title":"Polymer nanocomposite-based biomolecular sensor for healthcare monitoring","volume":"343","author":"Natarajan","year":"2025","journal-title":"Adv. Colloid Interface Sci."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Kuznetsova, L.S., Arlyapov, V.A., Plekhanova, Y.V., Tarasov, S.E., Kharkova, A.S., Saverina, E.A., and Reshetilov, A.N. (2023). Conductive Polymers and Their Nanocomposites: Application Features in Biosensors and Biofuel Cells. Polymers, 15.","DOI":"10.3390\/polym15183783"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"16016","DOI":"10.1021\/acsami.4c21102","article-title":"Innovative Polyimide Modifications for Aerospace and Optoelectronic Applications: Synergistic Enhancements in Thermal, Mechanical, and Optical Properties","volume":"17","author":"Chen","year":"2025","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"14221","DOI":"10.1007\/s10853-025-11148-2","article-title":"Effect of trifluoromethyl groups on properties of aromatic and semi-aromatic polyimides for space applications","volume":"60","author":"Podzimek","year":"2025","journal-title":"J. Mater. Sci."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"907","DOI":"10.1016\/j.progpolymsci.2012.02.005","article-title":"Advanced polyimide materials: Syntheses, physical properties and applications","volume":"37","author":"Liaw","year":"2012","journal-title":"Prog. Polym. Sci."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1007\/s42452-021-04362-5","article-title":"Applications of polyimide coatings: A review","volume":"3","year":"2021","journal-title":"SN Appl. Sci."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"3633","DOI":"10.1039\/D4MH01816H","article-title":"Polyimide nanocomposites for next generation spacesuits","volume":"12","author":"Prakash","year":"2025","journal-title":"Mater. Horiz."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"56553","DOI":"10.1021\/acsami.5c16114","article-title":"Porous Lightweight Polyimide Films with Ultra-High Surface Insulation Strength and Thermal Insulation for Space Solar Arrays","volume":"17","author":"Li","year":"2025","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Yin, J., Hui, H., Fan, B., Bian, J., Du, J., and Yang, H. (2022). Preparation and Properties of Polyimide Composite Membrane with High Transmittance and Surface Hydrophobicity for Lightweight Optical System. Membranes, 12.","DOI":"10.3390\/membranes12060592"},{"key":"ref_28","first-page":"100657","article-title":"Eco-friendly synthesis of high-performance polyimide materials using bio-based greener solvents: Towards sustainable technologies in space environment","volume":"25","author":"Toto","year":"2024","journal-title":"Mater. Today Sustain."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Constantin, C.P., Aflori, M., Damian, R.F., and Rusu, R.D. (2019). Biocompatibility of Polyimides: A Mini-Review. Materials, 12.","DOI":"10.3390\/ma12193166"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Cui, T.-R., Li, D., Huang, X.-R., Yan, A.-Z., Dong, Y., Xu, J.-D., Guo, Y.-Z., Wang, Y., Chen, Z.-K., and Shao, W.-C. (2022). Graphene-based flexible electrode for electrocardiogram signal monitoring. Appl. Sci., 12.","DOI":"10.3390\/app12094526"},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Huang, H., Su, S., Wu, N., Wan, H., Wan, S., Bi, H., and Sun, L. (2019). Graphene-based sensors for human health monitoring. Front. Chem., 7.","DOI":"10.3389\/fchem.2019.00399"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Toto, E., Laurenzi, S., and Santonicola, M.G. (2022). Recent trends in graphene\/polymer nanocomposites for sensing devices: Synthesis and applications in environmental and human health monitoring. Polymers, 14.","DOI":"10.3390\/polym14051030"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"2501722","DOI":"10.1002\/smll.202501722","article-title":"Recent Advances in Graphene-Polymer Nanocomposite-Based Flexible Sensors and Triboelectric Nanogenerators","volume":"21","author":"Sharma","year":"2025","journal-title":"Small"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1542","DOI":"10.1039\/D5NH00141B","article-title":"Wearable biosensors for health monitoring: Advances in graphene-based technologies","volume":"10","author":"Abdelfattah","year":"2025","journal-title":"Nanoscale Horiz."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"659","DOI":"10.1021\/acssuschemeng.9b06496","article-title":"Dimethyl isosorbide as a green solvent for sustainable ultrafiltration and microfiltration membrane preparation","volume":"8","author":"Russo","year":"2019","journal-title":"ACS Sustain. Chem. Eng."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"957","DOI":"10.1016\/j.actaastro.2025.09.074","article-title":"Polyimide\/graphene nanocomposites for space applications: Potential antibacterial coatings for human exploration missions","volume":"238","author":"Blondelli","year":"2026","journal-title":"Acta Astronaut."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1080\/08927010802716623","article-title":"Dose requirements for UVC disinfection of catheter biofilms","volume":"25","author":"Bak","year":"2010","journal-title":"Biofouling"},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Palma, F., D\u00edaz-Navarro, M., Visedo, A., Sanz-Ru\u00edz, P., Brandi, G., Schiavano, G.F., and Guembe, M. (2025). Assessment of the anti-biofilm effect of UV-C irradiation (254 nm) against healthcare associated infections related microorganisms. Front. Microbiol., 16.","DOI":"10.3389\/fmicb.2025.1741013"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"731","DOI":"10.1016\/j.coph.2013.08.009","article-title":"Light based anti-infectives: Ultraviolet C irradiation, photodynamic therapy, blue light, and beyond","volume":"13","author":"Yin","year":"2013","journal-title":"Curr. Opin. Pharmacol."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1016\/j.polymer.2016.12.037","article-title":"Thermal imidization process of polyimide film: Interplay between solvent evaporation and imidization","volume":"109","author":"Chen","year":"2017","journal-title":"Polymer"},{"key":"ref_41","unstructured":"(2021). Geometrical Product Specifications (GPS)\u2014Surface Texture: Profile\u2014Part 2: Terms, Definitions and Surface Texture Parameters (Standard No. ISO 21920)."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/S0924-0136(02)00060-2","article-title":"Roughness parameters","volume":"123","author":"Gadelmawla","year":"2002","journal-title":"J. Mater. Process. Technol."},{"key":"ref_43","unstructured":"(2014). Standard Test Method for Assignment of the Glass Transition Temperatures by Differential Scanning Calorimetry (Standard No. ASTM E1356-08)."},{"key":"ref_44","unstructured":"(2015). Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry (Standard No. ASTM D3418)."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"2490","DOI":"10.1002\/polb.20124","article-title":"Structure and properties of polyimide films during a far-infrared-induced imidization process","volume":"42","author":"Xu","year":"2004","journal-title":"J. Polym. Sci. B Polym. Phys."},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Wu, Z., He, J., Yang, H., and Yang, S. (2022). Progress in Aromatic Polyimide Films for Electronic Applications: Preparation, Structure and Properties. Polymers, 14.","DOI":"10.3390\/polym14061269"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"6","DOI":"10.1016\/j.solidstatesciences.2013.06.012","article-title":"Polyimide nanocomposites based on functionalized graphene sheets: Morphologies, thermal properties, and electrical and thermal conductivities","volume":"24","author":"Heo","year":"2013","journal-title":"Solid State Sci."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"263","DOI":"10.1016\/j.actaastro.2022.12.040","article-title":"Three-dimensional temperature profile in a dome-shaped habitat structure on the moon","volume":"204","author":"Tripathi","year":"2023","journal-title":"Acta Astronaut."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"168344","DOI":"10.1016\/j.ijleo.2021.168344","article-title":"Analysis of optical fiber performance at extreme temperature in low earth orbit","volume":"250","author":"Xijun","year":"2022","journal-title":"Optik"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"282","DOI":"10.1038\/nature04969","article-title":"Graphene-based composite materials","volume":"442","author":"Stankovich","year":"2006","journal-title":"Nature"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1706705","DOI":"10.1002\/adfm.201706705","article-title":"Graphene platelets and their polymer composites: Fabrication, structure, properties, and applications","volume":"28","author":"Shi","year":"2018","journal-title":"Adv. Funct. Mater."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"1701513","DOI":"10.1002\/adfm.201701513","article-title":"Highly elastic graphene-based electronics toward electronic skin","volume":"27","author":"Yun","year":"2017","journal-title":"Adv. Funct. Mater."},{"key":"ref_53","doi-asserted-by":"crossref","unstructured":"Song, J., Kim, Y., Kang, K., Lee, S., Shin, M., and Son, D. (2022). Stretchable and Self-Healable Graphene\u2013Polymer Conductive Composite for Wearable EMG Sensor. Polymers, 14.","DOI":"10.3390\/polym14183766"},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"43230","DOI":"10.1021\/acsami.7b12104","article-title":"Fabrication of Graphene\u2013Polyimide Nanocomposites with Superior Electrical Conductivity","volume":"9","author":"Yoonessi","year":"2017","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/j.sna.2016.04.044","article-title":"Experimental investigation on surface wettability of copper-based dry bioelectrodes","volume":"244","author":"Zhou","year":"2016","journal-title":"Sens. Actuators A"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"251","DOI":"10.1016\/S0925-3467(97)00109-2","article-title":"UV light-induced deposition of low dielectric constant organic polymer for interlayer dielectrics","volume":"9","author":"Zhang","year":"1998","journal-title":"Opt. Mater."},{"key":"ref_57","doi-asserted-by":"crossref","unstructured":"Botti, S., Bonfigli, F., Bruttomesso, A., Micciulla, F., Nigro, V., Rufoloni, A., and Vannozzi, A. (2025). CO2 and UV Laser-Induced Graphene Based on Polymer Transformation: Advanced Characterizations by 2D Raman Mapping Combined with Microscopy Techniques. Materials, 18.","DOI":"10.20944\/preprints202504.2345.v1"}],"container-title":["Polymers"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-4360\/18\/18\/2222\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T04:18:07Z","timestamp":1789445887000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-4360\/18\/18\/2222"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,12]]},"references-count":57,"journal-issue":{"issue":"18","published-online":{"date-parts":[[2026,9]]}},"alternative-id":["polym18182222"],"URL":"https:\/\/doi.org\/10.3390\/polym18182222","relation":{},"ISSN":["2073-4360"],"issn-type":[{"value":"2073-4360","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,12]]}}}