120244 20240319081026.0 doi 10.3390/nano12172900 sideral 131200 ART-2022-131200 eng Rupérez, David Universidad de Zaragoza Mechanochemically Scaled-Up Alpha Cyclodextrin Nanosponges: Their Safety and Effectiveness as Ethylene Scavenger 2022 Access copy available to the general public Unrestricted Aiming at the development of a greener ethylene removal alternative, the goal of this study was to scale up and ensure the safety of α-cyclodextrin nanosponges (α-CD-NS) for further use as ethylene scavengers. The solvent-free synthesis of α-CD-NS was successfully scaled up using α-cyclodextrin and N,N′-carbonyldiimidazole as cross-linkers (1:4 molar ratio) by means of mechanical alloying using a PM 100 ball mill by focusing on varying the rotation frequency, as determined by FTIR-ATR, X-ray diffraction, and TGA. α-CD-NS washing optimization was performed in water by monitoring the imidazole concentration in the washing solution through the validation of a fast and sensitive HPLC-DAD method. After 6 h at 40 °C, all imidazole was extracted, allowing a faster and less energy-dependent extraction. α-CD-NS absorbent capacity and porosity were also evaluated through BET isotherms and ethylene absorption experiments using α-CD-NS and commercially available absorbents (zeolite and bentonite) were performed by means of gas chromatography (GC) coupled to a flame ionization detector (FID). With a 93 µL h−1 kgadsorbent−1 ethylene removal capacity, α-CD-NS revealed the best ethylene scavenging activity when compared to the other absorbents, opening the doors for a safer, innovative, and eco-friendlier ethylene removal active packaging. info:eu-repo/grantAgreement/ES/MICINN/RTI2018-097805-B-I00 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 5.3 2022 PHYSICS, APPLIED 39 / 160 = 0.244 2022 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 51 / 107 = 0.477 2022 Q2 T2 CHEMISTRY, MULTIDISCIPLINARY 58 / 178 = 0.326 2022 Q2 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 110 / 343 = 0.321 2022 Q2 T1 0.811 2022 Chemical Engineering (miscellaneous) 2022 Q1 Materials Science (miscellaneous) 2022 Q2 7.4 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Gracia-Vallés, Nicolás Universidad de Zaragoza Clavero, Eva Silva, Filomena (orcid)0000-0001-7143-8905 Nerín, Cristina Universidad de Zaragoza (orcid)0000-0003-2685-5739 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 12, 17 (2022), 2900 [16 pp.] Nanomaterials (Basel) Nanomaterials 2079-4991 3628266 http://zaguan.unizar.es/record/120244/files/texto_completo.pdf Versión publicada 2763623 http://zaguan.unizar.es/record/120244/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:120244 articulos driver 2024-03-18-16:43:44 ARTICLE