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The per- and polyfluoroalkyl substances (PFAS) constitute a group of organofluorine chemicals treated as the emerging pollutants and currently are of particularly acute concern. These compounds have been employed intensively as surfactants…

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental pollutants with known toxicity and bioaccumulation issues. Their widespread industrial use and resistance to degradation have led to global environmental contamination…

Machine Learning · Computer Science 2024-09-17 Lucas Jividen , Tibo Duran , Xi-Zhi Niu , Jun Bai

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with significant public health impacts, yet large-scale monitoring remains severely limited due to the high cost and logistical challenges of field…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 Jowaria Khan , Alexa Friedman , Sydney Evans , Rachel Klein , Runzi Wang , Katherine E. Manz , Kaley Beins , David Q. Andrews , Elizabeth Bondi-Kelly

In this work, we have investigated the possibility of using COOH functionalized CdTe quantum dots (QDs) as fluorescent nanosensor for the detection of some environmentally hazardous metal ions ($\rm{Cr^{3+}}$, $\rm{Pb^{2+}}$,…

Chemical Physics · Physics 2020-11-10 Pooja , Papia Chowdhury

Heavy metal pollution, particularly in the form of airborne aerosols such as lead (Pb), cadmium (Cd), mercury (Hg), and cobalt (Co), poses serious health and environmental risks, necessitating highly sensitive remote detection techniques.…

Instrumentation and Detectors · Physics 2025-06-12 Yuezheng Wang , Lu Sun , Zhiwenqi An , Jiayun Xue , Zhixuan An , Nan Zhang , Lie Lin , Weiwei Liu

Boron-doped, graphene sponge anode was synthesized and applied for the electrochemical oxidation of C4-C8 per and polyfluoroalkyl substances (PFASs). Removal efficiencies, obtained in low conductivity electrolyte (1 mS cm-1) and one-pass…

Materials Science · Physics 2022-02-15 Nick Duinslaeger , Jelena Radjenovic

Standoff chemical sensing of chemicals and toxic compounds is very desirable for actively monitoring residential, commercial, and industrial spaces. Analytes such as toxic industrial compounds (TICs), chemical warfare agents (CWAs), and…

Short-chain per- and polyfluoroalkyl substances (PFASs) are increasingly replacing regulated long-chain PFASs, yet they remain challenging to remove from water due to their high persistence, mobility, and weak affinity toward conventional…

Materials Science · Physics 2026-03-17 Mengru Zhang , Satyanarayana Bonakala , Taku Watanabe , Karim Hamzaoui , Guillaume Maurin

The microfluidic optomechanical resonator (uFOMR) based on a thin-walled glass capillary supports high Q-factor (>1000) mechanical modes in the presence of liquids. In this Letter, the sensitivity of the uFOMR to the surface change is…

Optics · Physics 2015-09-01 Kyu Hyun Kim , Xudong Fan

The electronics and semiconductor industry is a prominent consumer of per- and poly-fluoroalkyl substances (PFAS), also known as forever chemicals. PFAS are persistent in the environment and can bioaccumulate to ecological and human toxic…

Hardware Architecture · Computer Science 2025-05-13 Mariam Elgamal , Abdulrahman Mahmoud , Gu-Yeon Wei , David Brooks , Gage Hills

Detecting water-surface targets for Unmanned Surface Vehicles (USVs) is challenging due to wave clutter, specular reflections, and weak appearance cues in long-range observations. Although 4D millimeter-wave radar complements cameras under…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yuting Wan , Liguo Sun , Jiuwu Hao , Zao Zhang , Pin LV

Pursuing ultrasensitivity of pressure sensors has been a long-standing goal. Here, we report a piezoelectric sensor that exhibits supreme pressure-sensing performance, including a peak sensitivity up to 3.5*10^6 kPa^-1 in the pressure range…

X-ray absorption spectroscopy (XAS) is a powerful and well established technique with sensitivity to elemental and chemical composition. Despite these advantages, its implementation has not kept pace with the development of ultrafast pulsed…

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental pollutants of major public health concern due to their resistance to degradation, widespread presence, and potential health risks. Analyzing PFAS in groundwater is…

Applications · Statistics 2026-03-17 Suman Majumder , Indranil Sahoo

Ammonia (NH$_3$) toxicity, stemming from nitrification, can adversely affect aquatic life and influence the taste and odor of drinking water. This underscores the necessity for highly responsive and accurate sensors to continuously monitor…

Mesoscale and Nanoscale Physics · Physics 2023-12-04 Apostolos Apostolakis , Guillaume Aoust , Grégory Maisons , Ludovic Laurent , Mauro Fernandes Pereira

As a persistent pollutant, PFOA places a serious threat to natural ecosystems and human health for its global distribution and residual. Currently, adsorption technology is a promising approach for PFOA removal. MOFs become a concerned…

Chemical Physics · Physics 2021-09-28 Sicheng Ding , Xiaolan Zeng

Low concentration hydrogen gas detection is of paramount importance both in space applications as well as medical applications. It is also critically important for safe handling of hydrogen below the explosive limit. Here, we report a novel…

A photoacoustic (PA) sensor for fast and real-time gas sensing is demonstrated. The PA sensor is a standalone system controlled by a Field-Programmable Gate Array (FPGA). The PA cell has been designed for flow noise immunity using…

Instrumentation and Detectors · Physics 2018-05-23 Mikael Lassen , David Balslev-Harder , Anders Brusch , Nikola Pelevic , Stefan Persijn , Jan C. Petersen

The development of highly-sensitive and miniaturized sensors that capable of real-time analytes detection is highly desirable. Nowadays, toxic or colorless gas detection, air pollution monitoring, harmful chemical, pressure, strain,…

Applied Physics · Physics 2018-01-19 Ahmmed A. Rifat , Kawsar Ahmed , Sayed Asaduzzaman , Bikash Kumar Paul , Rajib Ahmed

The introduction of the Water Framework directive sets stringent limits on phosphorous discharge from wastewater treatment plants to maintain the complex interdependent relationship between water tributaries and the ecosystem. This paper…

Signal Processing · Electrical Eng. & Systems 2022-10-13 Saif S. S. Al Wahaibi , Benjamin D. Martin , Ana Soares
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