Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 12170-12176 |
| Journal | Langmuir |
| Volume | 31 |
| Issue number | 44 |
| DOIs | |
| Publication status | Published - 2015 |
| MoE publication type | A1 Journal article-refereed |
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Water vapor uptake of ultrathin films of biologically derived nanocrystals : Quantitative assessment with quartz crystal microbalance and spectroscopic ellipsometry. / Niinivaara, Elina; Faustini, Marco; Tammelin, Tekla; Kontturi, Eero (Corresponding Author).
In: Langmuir, Vol. 31, No. 44, 2015, p. 12170-12176.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Water vapor uptake of ultrathin films of biologically derived nanocrystals
T2 - Quantitative assessment with quartz crystal microbalance and spectroscopic ellipsometry
AU - Niinivaara, Elina
AU - Faustini, Marco
AU - Tammelin, Tekla
AU - Kontturi, Eero
PY - 2015
Y1 - 2015
N2 - Despite the relevance of water interactions, explicit analysis of vapor adsorption on biologically derived surfaces is often difficult. Here, a system was introduced to study the vapor uptake on a native polysaccharide surface; namely, cellulose nanocrystal (CNC) ultrathin films were examined with a quartz crystal microbalance with dissipation monitoring (QCM-D) and spectroscopic ellipsometry (SE). A significant mass uptake of water vapor by the CNC films was detected using the QCM-D upon increasing relative humidity. In addition, thickness changes proportional to changes in relative humidity were detected using SE. Quantitative analysis of the results attained indicated that in preference to being soaked by water at the point of hydration each individual CNC in the film became enveloped by a 1 nm thick layer of adsorbed water vapor, resulting in the detected thickness response.
AB - Despite the relevance of water interactions, explicit analysis of vapor adsorption on biologically derived surfaces is often difficult. Here, a system was introduced to study the vapor uptake on a native polysaccharide surface; namely, cellulose nanocrystal (CNC) ultrathin films were examined with a quartz crystal microbalance with dissipation monitoring (QCM-D) and spectroscopic ellipsometry (SE). A significant mass uptake of water vapor by the CNC films was detected using the QCM-D upon increasing relative humidity. In addition, thickness changes proportional to changes in relative humidity were detected using SE. Quantitative analysis of the results attained indicated that in preference to being soaked by water at the point of hydration each individual CNC in the film became enveloped by a 1 nm thick layer of adsorbed water vapor, resulting in the detected thickness response.
U2 - 10.1021/acs.langmuir.5b01763
DO - 10.1021/acs.langmuir.5b01763
M3 - Article
VL - 31
SP - 12170
EP - 12176
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 44
ER -