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Immobilization of ammonia oxidizing bacteria using mycelial pellets: Preparation, characteristics, and application for nitritation.
Bioresour Technol
January 2025
College of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.
Ammonia-oxidizing bacteria (AOB) sourced from an aerobic granular sludge (AGS) process were rapidly enriched by progressively increasing ammonia nitrogen (NH-N) loads, achieving a Nitrosomonas abundance of 20.7 % and a nitrite accumulation rate exceeding 80 %. Mycelial pellets formed by Cladosporium, isolated from the same AGS system, provided a porous surface structure for the immobilization of the enriched AOB, creating mycelial pellet/AOB composites.
View Article and Find Full Text PDFKill two birds with one stone: Biochar immobilised polydopamine coated compound bacterial agent for remediation of dibutyl phthalate contaminated soil.
Environ Res
January 2025
School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China. Electronic address:
The severe contamination of the plasticiser dibutyl phthalate (DBP) in agriculture soils is often accompanied by a decrease in nutrient utilisation. Though the combined application of a variety of microorganisms can simultaneously address the problems of soil contamination and nutrient deprivation, the activity and function of microorganisms can be severely inhibited by DBP, and studies on their protection under DBP contamination are almost non-existent. In this study, a compound bacterial agent KPSB was prepared by optimising with FeO-modified biochar loaded with DBP-degrading bacterium Enterobacterium sp.
View Article and Find Full Text PDFThree-dimensional ordered macro-microporous ZIF-8-α-Glu microreactors for α-glucosidase inhibitors screening from green tea.
Talanta
January 2025
Department of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, Bangladesh.
Due to the larger pore structure, the macroporous material can be used as the immobilized carrier to not only increase the enzyme loading capacity, but also facilitate the transfer of reactants and substrates. Based on this, a three-dimensional ordered macro-microporous ZIF-8 (SOM-ZIF-8) was prepared using three-dimensional ordered stacked polystyrene spheres as the hard template. The morphology and structure of SOM-ZIF-8 were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and so on.
View Article and Find Full Text PDFSpontaneous immobilization of single atom in NbCT MXene as excellent nanozyme for detecting and preventing gastric mucosal injury.
Biosens Bioelectron
January 2025
Key Laboratory of Organic Integrated Circuit, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China. Electronic address:
Early diagnosis and treatment of gastric mucosal injury is crucial to prevent further gastritis and even canceration. As an efficient biocatalyst, single-atom nanozyme (SAzyme) is proposed to be an ideal candidate for the construction of multifunctional platforms. Nevertheless, SAzyme still faces challenges in detecting and treating diseases due to the complexity of preparation methods, limitations of enzyme activity, and undesirable biocompatibility.
View Article and Find Full Text PDFEffective denitrification from landfill leachate using magnetic PVA/CMC/DE carrier immobilized microorganisms.
Waste Manag
January 2025
Guangxi Bossco Environmental Protection Technology Co., Ltd., Nanning 530007, China.
Ammonia nitrogen (NH-N) discharge has caused eutrophication of water bodies and harm to humans and organisms. In this work, polyvinyl alcohol (PVA), sodium carboxymethyl cellulose (CMC), diatomite (DE), and FeO were used to prepare magnetic immobilized carriers by encapsulating microorganisms for the treatment of NH-N wastewater. The response surface methodology was used to explore the optimal ratio of the immobilized carriers.
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