Cargando…

Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors

Both cellulose nanocrystals and gold nanoparticles show immense potential for biological and chemical applications. Gold nanoparticles, which tend to aggregate, are hybridized with cellulose nanocrystals to form stable inorganic–organic hybrids in which nanocellulose acts as a green supporting mater...

Descripción completa

Detalles Bibliográficos
Autores principales: Koroleva, Maria S., Tracey, Chantal, Sidunets, Yuri A., Torlopov, Mikhail A., Mikhaylov, Vasily I., Krivoshapkin, Pavel V., Martakov, Ilia S., Krivoshapkina, Elena F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056851/
https://www.ncbi.nlm.nih.gov/pubmed/35515643
http://dx.doi.org/10.1039/d0ra07300h
_version_ 1784697759522095104
author Koroleva, Maria S.
Tracey, Chantal
Sidunets, Yuri A.
Torlopov, Mikhail A.
Mikhaylov, Vasily I.
Krivoshapkin, Pavel V.
Martakov, Ilia S.
Krivoshapkina, Elena F.
author_facet Koroleva, Maria S.
Tracey, Chantal
Sidunets, Yuri A.
Torlopov, Mikhail A.
Mikhaylov, Vasily I.
Krivoshapkin, Pavel V.
Martakov, Ilia S.
Krivoshapkina, Elena F.
author_sort Koroleva, Maria S.
collection PubMed
description Both cellulose nanocrystals and gold nanoparticles show immense potential for biological and chemical applications. Gold nanoparticles, which tend to aggregate, are hybridized with cellulose nanocrystals to form stable inorganic–organic hybrids in which nanocellulose acts as a green supporting material for the catalytically active gold nanoparticles. A green synthesis approach was taken, and hydrothermal treatment was used to reduce electrostatic repulsion between the gold nanoparticles and the cellulose nanocrystals to promote heteroaggregation instead of homoaggregation. AFM analysis showed hybrid films to be hygroscopic, suggesting that they would respond to changes in humidity. Laser diffraction and fluorescence quenching were used to determine how hybrid films respond to changes in humidity. Hybrid films were found to respond to changes in humidity quickly, reversibly, and autonomously, making them ideal for use as or in a humidity sensor. Gold nanoparticles were shown to enhance the hybrid response to ambient moisture, causing them to show a linear dependence on changes in humidity, making the hybrid controllable, highly sensitive, and a viable prospective material for humidity sensing applications.
format Online
Article
Text
id pubmed-9056851
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-90568512022-05-04 Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors Koroleva, Maria S. Tracey, Chantal Sidunets, Yuri A. Torlopov, Mikhail A. Mikhaylov, Vasily I. Krivoshapkin, Pavel V. Martakov, Ilia S. Krivoshapkina, Elena F. RSC Adv Chemistry Both cellulose nanocrystals and gold nanoparticles show immense potential for biological and chemical applications. Gold nanoparticles, which tend to aggregate, are hybridized with cellulose nanocrystals to form stable inorganic–organic hybrids in which nanocellulose acts as a green supporting material for the catalytically active gold nanoparticles. A green synthesis approach was taken, and hydrothermal treatment was used to reduce electrostatic repulsion between the gold nanoparticles and the cellulose nanocrystals to promote heteroaggregation instead of homoaggregation. AFM analysis showed hybrid films to be hygroscopic, suggesting that they would respond to changes in humidity. Laser diffraction and fluorescence quenching were used to determine how hybrid films respond to changes in humidity. Hybrid films were found to respond to changes in humidity quickly, reversibly, and autonomously, making them ideal for use as or in a humidity sensor. Gold nanoparticles were shown to enhance the hybrid response to ambient moisture, causing them to show a linear dependence on changes in humidity, making the hybrid controllable, highly sensitive, and a viable prospective material for humidity sensing applications. The Royal Society of Chemistry 2020-09-21 /pmc/articles/PMC9056851/ /pubmed/35515643 http://dx.doi.org/10.1039/d0ra07300h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Koroleva, Maria S.
Tracey, Chantal
Sidunets, Yuri A.
Torlopov, Mikhail A.
Mikhaylov, Vasily I.
Krivoshapkin, Pavel V.
Martakov, Ilia S.
Krivoshapkina, Elena F.
Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors
title Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors
title_full Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors
title_fullStr Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors
title_full_unstemmed Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors
title_short Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors
title_sort environmentally friendly au@cnc hybrid systems as prospective humidity sensors
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056851/
https://www.ncbi.nlm.nih.gov/pubmed/35515643
http://dx.doi.org/10.1039/d0ra07300h
work_keys_str_mv AT korolevamarias environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors
AT traceychantal environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors
AT sidunetsyuria environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors
AT torlopovmikhaila environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors
AT mikhaylovvasilyi environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors
AT krivoshapkinpavelv environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors
AT martakovilias environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors
AT krivoshapkinaelenaf environmentallyfriendlyaucnchybridsystemsasprospectivehumiditysensors