Chemisorption vs. Physisorption in Perfluorinated Zn(II) Porphyrin–SnO2 Hybrids for Acetone Chemoresistive Detection
Manuel Minnucci, Sara Oregioni, Eleonora Pargoletti, Gabriele Di Carlo, Francesca Tessore, Gian Luca Chiarello, Rocco Martinazzo, Mario Italo Trioni, Giuseppe Cappelletti, Wim Dehaen · 2025
Read Chemisorption vs. Physisorption in Perfluorinated Zn(II) Porphyrin–SnO2 Hybrids for Acetone Chemoresistive Detection by Manuel Minnucci, Sara Oregioni, Eleonora Pargoletti, Gabriele Di Carlo, Francesca Tessore, Gian Luca Chiarello, Rocco Martinazzo, Mario Italo Trioni, Giuseppe Cappelletti, Wim Dehaen (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12735734.txt.
Description
Acetone in air or breath can signal factory leaks and some diseases, so sensors that sniff it cheaply draw wide interest. Manuel Minnucci and co-authors pair tin oxide with a fluorinated zinc porphyrin dye to sharpen such a sensor. Their 2025 paper tests whether tying the dye down with a chemical anchor beats letting it rest loose on the surface.
They built mixes at three dye-to-oxide ratios and ran them at 120 degrees, in the dark and under LED light. The middle mix with the anchored dye beat the loose-dye version on sensitivity, even though it conducted worse in plain air. Computer models of the bond explain the twist: the anchor strikes a better balance between charge flow and free sensing sites. Careful dye design, the work shows, can matter as much as the oxide itself for sensor quality.
Catalog record
| CREATOR | Manuel Minnucci, Sara Oregioni, Eleonora Pargoletti, Gabriele Di Carlo, Francesca Tessore, Gian Luca Chiarello, Rocco Martinazzo, Mario Italo Trioni, Giuseppe Cappelletti, Wim Dehaen |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 37 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |