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An unmet challenge is the creation of gas\u2010sensitive materials where the response to humidity is controlled by the material itself. Here, humidity effects are controlled through the design of gelatin formulations in ionic liquids without and with liquid crystals as electrical and optical sensors, respectively. In this design, the anions [DCA]<jats:sup>\u2212<\/jats:sup> and [Cl]<jats:sup>\u2212<\/jats:sup> of room temperature ionic liquids from the 1\u2010butyl\u20103\u2010methylimidazolium family tailor the response to humidity and, subsequently, sensing of VOCs in dry and humid conditions. Due to the combined effect of the materials formulations and sensing mechanisms, changing the anion from [DCA]<jats:sup>\u2212<\/jats:sup> to the much more hygroscopic [Cl]<jats:sup>\u2212<\/jats:sup>, leads to stronger electrical responses and much weaker optical responses to humidity. Thus, either humidity sensors or humidity\u2010tolerant VOC sensors that do not require sample preconditioning or signal processing to correct humidity impact are obtained. With the wide spread of 3D\u2010 and 4D\u2010printing and intelligent devices, the monitoring and tuning of humidity in sustainable biobased materials offers excellent opportunities in e\u2010nose sensing arrays and wearable devices compatible with operation at room conditions.<\/jats:p>","DOI":"10.1002\/adma.202107205","type":"journal-article","created":{"date-parts":[[2021,12,6]],"date-time":"2021-12-06T22:00:39Z","timestamp":1638828039000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":75,"title":["Tackling Humidity with Designer Ionic Liquid\u2010Based Gas Sensing Soft Materials"],"prefix":"10.1002","volume":"34","author":[{"given":"Carina","family":"Esteves","sequence":"first","affiliation":[{"name":"Associate Laboratory i4HB \u2013 Institute for Health and Bioeconomy NOVA School of Science and Technology NOVA University of Lisbon  Caparica 2829\u2010516 Portugal"},{"name":"UCIBIO \u2013 Applied Molecular Biosciences Unit Department of Chemistry NOVA School of Science and Technology NOVA University of Lisbon  Caparica 2829\u2010516 Portugal"}]},{"given":"Susana I. 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