Fluorescence based detection of polychlorinated biphenyls (PCBs) in water using hydrophobic interactions

Ahmad, Irfan; Weng, Jiaying; Stromberg, Arnold J.; Hilt, J. Zach; Dziubla, Thomas D.

doi:10.1039/c8an00867a

Cited by 26 publications

(9 citation statements)

References 22 publications

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“…To strengthen the quality management of drinking water, the United States Environmental Protection Agency (USEPA) set the highest acceptable concentration for PCBs of 500 pg mL −1 . 54 In 2001, governments around the world signed the Stockholm Convention aiming to eliminate PCBs by 2028. As one of the signatories to the convention, China was committed to proper inventory and harmless disposal of PCBs.…”

Section: Endocrine Disrupting Chemicalsmentioning

confidence: 99%

Endocrine disrupting chemicals in water and recent advances on their detection using electrochemical biosensors

Wang

Tizaoui

et al. 2023

Sens. Diagn.

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Section: Endocrine Disrupting Chemicalsmentioning

confidence: 99%

Endocrine disrupting chemicals in water and recent advances on their detection using electrochemical biosensors

Wang

Tizaoui

et al. 2023

Sens. Diagn.

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Section: Backgroudmentioning

confidence: 99%

“…For example, BPA is widely found in industry which commonly used in mineral water bottles, coatings inside beverage tanks, mouth cups for baby and food products [1]. PCBs are additives to many industrial supplies [2].Profenofos and atrazine are applied in agricultural as anti-helminths and herbicides [3,4]. These environmental hormones will accumulate in livestock and crops with sewage and soil, nally enter the human body.…”

mentioning

confidence: 99%

Suspension array platform based on aptamer for high-throughput detection of five environmental hormones

Yao¹,

Jia²,

Ren³

et al. 2021

Preprint

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Background As a common small molecule substance, environmental hormones widely exist in nature, especially water sources, which have a profound effects in humans. Highly efficient and sensitive method for estrogens in the environment are essential. Results In this paper, a novel high-throughput platform was established based on five small hormones molecules specificity aptamer and magnetic beads (MBs). The results showed that the sensitivity of the proposed method are greatly improved. The limit of detection(LOD) of this method for atrazine(Atz), profenofos, bisphenolA(BPA), estradiol(E2), and polychlorinated biphenyls(PCBs) were 9.46, 20.75, 23.81, 8.97, 6.27 pg/mL, respectively. The Recovery rate of the diluted environmental hormones spiked in the samples of Haihe river were in the range of 87.5-111.02% with relative standard deviations (RSDs) lower than 28.44%. Conclusion This platform based on new complementary strand fragments can simultaneously rapid detection five environmental hormones. The whole procedure completed within 1.5h including sample treatment, incubation and detection, greatly improving the detection efficiency.

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“…Moreover, the mechanism of aerosol separation can be tuned by changing the configuration of air flow through an asymmetric membrane, i.e., sieving separation at the porous membrane surface in one direction versus capture within the porous structure in the other (Figure 1B,C). The ability to capture particles within the porous network may also have potential advantages for sensing and quantifying certain captured components of interest such as pollutants 23 or pathogens. 24 Hollow fiber membranes (HFMs) are a particular type of membrane with cylindrical geometry where transport occurs across the membrane in the radial direction.…”

Section: ■ Introductionmentioning

confidence: 99%

Demonstration of Hollow Fiber Membrane-Based Enclosed Space Air Remediation for Capture of an Aerosolized Synthetic SARS-CoV-2 Mimic and Pseudovirus Particles

et al. 2022

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Reduction of airborne viral particles in enclosed spaces is critical in controlling pandemics. Three different hollow fiber membrane (HFM) modules were investigated for viral aerosol separation in enclosed spaces. Pore structures were characterized by scanning electron microscopy, and air transport properties were measured. Particle removal efficiency was characterized using aerosols generated by a collision atomizer from a defined mixture of synthetic nanoparticles including SARS-CoV-2 mimics (protein-coated 100 nm polystyrene). HFM1 (polyvinylidene fluoride, ∼50–1300 nm pores) demonstrated 96.5–100% efficiency for aerosols in the size range of 0.3–3 μm at a flow rate of 18.6 ± 0.3 SLPM (∼1650 LMH), whereas HFM2 (polypropylene, ∼40 nm pores) and HFM3 (hydrophilized polyether sulfone, ∼140–750 nm pores) demonstrated 99.65–100% and 98.8–100% efficiency at flow rates of 19.7 ± 0.3 SLPM (∼820 LMH) and 19.4 ± 0.2 SLPM (∼4455 LMH), respectively. Additionally, lasting filtration with minimal fouling was demonstrated using ambient aerosols over 2 days. Finally, each module was evaluated with pseudovirus (vesicular stomatitis virus) aerosol, demonstrating 99.3% (HFM1), >99.8% (HFM2), and >99.8% (HFM3) reduction in active pseudovirus titer as a direct measure of viral particle removal. These results quantified the aerosol separation efficiency of HFMs and highlight the need for further development of this technology to aid the fight against airborne viruses and particulate matter concerning human health.

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Fluorescence based detection of polychlorinated biphenyls (PCBs) in water using hydrophobic interactions

Abstract: Despite increasing controls in their production and disposal, persistent organic pollutants in water, even at concentrations below parts per million, represent an ongoing environmental health risk.

Cited by 26 publications

References 22 publications

Endocrine disrupting chemicals in water and recent advances on their detection using electrochemical biosensors

Endocrine disrupting chemicals in water and recent advances on their detection using electrochemical biosensors

Suspension array platform based on aptamer for high-throughput detection of five environmental hormones

Demonstration of Hollow Fiber Membrane-Based Enclosed Space Air Remediation for Capture of an Aerosolized Synthetic SARS-CoV-2 Mimic and Pseudovirus Particles

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