We present the enhanced transduction of a photonic crystal dye laser for gas sensing via deposition of an additional swelling polymer film. Device operation involves swelling of the polymer film during exposure to specific gases, leading to a change in total effective refractive index. Experimental results show an enhancement of 16.09 dB in sensing ethanol vapor after deposition of a polystyrene film. We verify different responses of the polystyrene film when exposed to either ethanol vapor or increased humidity, indicating selectivity. The concept is generic and, in principle, straightforward in its application to other intracavity-based detection schemes to enable gas sensing.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.36.001392 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The blue-light receptor CRY1 serves as a switch to balance photosynthesis and plant defense.
Cell Host Microbe
December 2024
CAS Center for Excellence in Molecular Plant Sciences (CEMPS), Institute of Plant Physiology and Ecology (SIPPE), Chinese Academy of Sciences, Shanghai 200031, People's Republic of China; College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China. Electronic address:
Plant stomata open in response to blue light, allowing gas exchange and water transpiration. However, open stomata are potential entry points for pathogens. Whether plants can sense pathogens and mount defense responses upon stomatal opening and how blue-light cues are integrated to balance growth-defense trade-offs are poorly characterized.
View Article and Find Full Text PDFDissemination mechanisms of unique antibiotic resistance genes from flowback water to soil revealed by combined Illumina and Nanopore sequencing.
Water Res
December 2024
Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China. Electronic address:
As a byproduct of shale gas extraction, flowback water (FW) is produced in large quantities globally. Due to the unique interactions between pollutants and microorganisms, FW always harbor multiple antibiotic resistance genes (ARGs) that have been confirmed in our previous findings, potentially serving as a point source for ARGs released into the environment. However, whether ARGs in FW can disseminate or integrate into the environmental resistome remains unclear.
View Article and Find Full Text PDFAdsorption and Sensing Performance of Transition Metal Decorated Graphene Quantum Dots for AsH, NH, PH, and HS.
Langmuir
December 2024
Department of Physics, National Institute of Technology, Jamshedpur-831014, India.
We have conducted a systematic study employing density functional theory (DFT) and quantum theory of atoms in molecules (QTAIM) to explore the gas sensing capabilities of nitrogen-doped single vacancy graphene quantum dots (SV/3N) decorated with transition metals (TM = Mn, Co, Cu). We have studied the interactions between TM@SV/3N and four different target gases (AsH, NH, PH, and HS) through the computation of adsorption energies, charge transfer, noncovalent interaction, density of states, band gap, and work function for 12 distinct adsorption systems. Our comprehensive analysis included an in-depth assessment of sensors' stability, sensitivity, selectivity, and reusability for practical applications.
View Article and Find Full Text PDFThe Role of Biosilica and Its Potential for Sensing Technologies: A Review.
J Biotechnol
December 2024
Laboratory of Electrochemistry and Nanotechnology, Institute of Technology and Research (ITP), Aracaju, Sergipe, Brazil; Process Engineering Graduate Program (PEP), Tiradentes University, Aracaju, Sergipe, Brazil.
Efficiently managing agricultural waste while innovating to derive value-added products is a significant challenge in the 21 century. In recent decades, these by-products have been increasingly explored as alternative sources for materials such as biosilica. Biosilica is renowned for its high surface area, biocompatibility, chemical stability, and modifiable surface, which makes it suitable for various applications.
View Article and Find Full Text PDFOxygenated VOC Detection Using SnO Nanoparticles with Uniformly Dispersed BiO.
Nanomaterials (Basel)
December 2024
Department of Advanced Materials Science and Engineering, Faculty of Engineering Sciences, Kyushu University, Kasuga 816-8580, Fukuoka, Japan.
BiO particles are introduced as foreign additives onto SnO nanoparticles (NPs) surfaces for the efficient detection of oxygenated volatile organic compounds (VOCs). BiO-loaded SnO materials are prepared via the impregnation method followed by calcination treatment. The abundant BiO/SnO interfaces are constructed by the uniform dispersion of BiO particles on the SnO surface.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!