Results 11 to 20 of about 342,710 (307)

Sustainable treatment of nitrate-containing wastewater by an autotrophic hydrogen-oxidizing bacterium

open access: yesEnvironmental Science and Ecotechnology, 2022
Bacteria are key denitrifiers in the reduction of nitrate (NO3−-N), which is a contaminant in wastewater treatment plants (WWTPs). They can also produce carbon dioxide (CO2) and nitrous oxide (N2O).
Yi-Zhen Chen   +9 more
doaj   +1 more source

Removal of Quinolone Antibiotics from Wastewater by the Biochar-Based Sludge Adsorbent

open access: yesFermentation, 2023
Antibiotics have been detected in tiny environmental matrices all over the world, which caused a lot of concern. To solve this problem, biological treatment can be a low-cost and high-efficiency way.
Yaoyu Zhang   +5 more
doaj   +1 more source

Preparation of Palladium(II) Ion-Imprinted Polymeric Nanospheres and Its Removal of Palladium(II) from Aqueous Solution

open access: yesNanoscale Research Letters, 2017
Three kinds of functional monomers, 4-vinylpridine(4-VP), 2-(allylthio)nicotinic acid(ANA), and 2-Acetamidoacrylic acid(AAA), were used to synthetize palladium(II) ion-imprinted polymeric nanospheres (Pd(II) IIPs) via precipitation-polymerization method ...
Hu-Chun Tao   +7 more
doaj   +1 more source

Interference Sources and Elimination Methods for the Determination of Selenium in Soil and Water Sediment by Atomic Fluorescence Spectrometry

open access: yesYankuang ceshi, 2019
BACKGROUND Atomic Fluorescence Spectrometry (AFS) has advantages of high sensitivity, simple structure and easy operation, but the digestion process of the standard analysis method for determination of Se in soil is cumbersome and readily produces ...
ZHAO Zong-sheng   +4 more
doaj   +1 more source

Peroxidase-Like Platinum Clusters Synthesized by Ganoderma lucidum Polysaccharide for Sensitively Colorimetric Detection of Dopamine

open access: yesMolecules, 2021
The sensitive and selective detection of dopamine (DA) is very important for the early diagnosis of DA-related diseases. In this study, we reported the colorimetric detection of DA using Ganoderma lucidum polysaccharide (GLP) stabilized platinum ...
Xiang Lai   +6 more
doaj   +1 more source

Preparation of Fluorescently Labeled Chitosan-Quercetin Drug-Loaded Nanoparticles with Excellent Antibacterial Properties

open access: yesJournal of Functional Biomaterials, 2022
In recent years, quercetin plays an increasingly important role in the medical field. However, the absorption and effect of quercetin as a drug in vivo are limited due to its extremely poor solubility in water.
Jingxin Zhou   +5 more
doaj   +1 more source

Biocompatible Platinum Nanoclusters Prepared Using Bitter Gourd Polysaccharide for Colorimetric Detection of Ascorbic Acid

open access: yesBiomolecules, 2021
Ascorbic acid is an organic compound with antioxidant properties that can protect the human body from the threat of free radicals. Therefore, it is important to detect the existence and measure the concentration of ascorbic acid to regulate its content ...
Kai Liu   +8 more
doaj   +1 more source

Proof of Aerobically Autoxidized Self-Charge Concept Based on Single Catechol-Enriched Carbon Cathode Material

open access: yesNano-Micro Letters, 2023
Highlights An air-breathing chemical self-charge concept of oxygen-enriched carbon cathode. The oxygen-enriched carbon material with abundant catechol groups. Rapid air-oxidation chemical self-charge of catechol groups. Abstract The self-charging concept
Junyan Wang   +14 more
doaj   +1 more source

Revealing the Hemispherical Shielding Effect of SiO2@Ag Composite Nanospheres to Improve the Surface Enhanced Raman Scattering Performance

open access: yesNanomaterials, 2021
Many studies widely used SiO2@Ag composite nanospheres for surface enhanced Raman scattering (SERS), which mainly contributes to electromagnetic enhancement.
Fengyan Wang   +6 more
doaj   +1 more source

Influence of Foliar Zinc Application on Cadmium and Zinc Bioaccessibility in Brassica chinensis L.: In Vitro Digestion and Chemical Sequential Extraction

open access: yesFoods
Foliar zinc (Zn) application can affect the accumulation and bioaccessibility of cadmium (Cd) and Zn in crops. However, the mechanisms by which foliar Zn application influences Cd and Zn bioaccessibility remain elusive. This study examined the effects of
Lin Wang   +5 more
doaj   +1 more source

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