Sensors and Actuators B: Chemical | VOL. 237

Fluorescent responsive chlorophyllide-hydrogel for carbon dioxide detection

Publication Date Dec 1, 2016


Abstract The chlorophyllide b derivatized polyallylamine (PAAChl) was synthesized. The resulting fluorescent polymer presented a high emission quantum yield, very stable in time. The polymer formed a hydrogel when treated with carbon dioxide that was characterized by Raman spectroscopy and solid-state NMR ( ss -NMR). The adsorption of CO 2 took place through the formation of carbamate. Absorbance and fluorescence based analytical studies were performed. The UV–vis spectra of PAAChl, after additions of CO 2 , showed a growing absorption peak at 250 nm corresponding to carbamate formation. The emission of fluorescence at 664 nm as function of carbon dioxide concentrations showed a linear regression with a detection limit of 2 ppm and a quantification limit of 5 ppm. The capacity of a chemical sensor is described by sensibility, selectivity, stability; response time and regeneration were also analyzed.


Carbamate Formation Adsorption Of CO Carbon Dioxide Emission Of Fluorescence Solid-state NMR Response Time Raman Spectroscopy High Quantum Yield Spectroscopy NMR High Yield

Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.

Climate change Research Articles published between Jan 23, 2023 to Jan 29, 2023

R DiscoveryJan 30, 2023
R DiscoveryArticles Included:  3

Climate change adaptation has shifted from a single-dimension to an integrative approach that aligns with vulnerability and resilience concepts. Adapt...

Read More

Coronavirus Pandemic

You can also read COVID related content on R COVID-19

R ProductsCOVID-19


Creating the world’s largest AI-driven & human-curated collection of research, news, expert recommendations and educational resources on COVID-19

COVID-19 Dashboard

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on “as is” basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The Copyright Law.