Results 41 to 50 of about 285,995 (306)

Preparation of copper modified biochar and its effect on catalyzing persulfate to remove the tetracycline from water

open access: yesGongye shui chuli
Copper modified corn stalk biochar(CBC) was prepared by hydrothermal method and used as a catalyst to activate potassium persulfate(PS) to remove tetracycline (TC) from water. The results showed that CBC+PS system had high efficiency and stability for TC
FAN Xiulei   +6 more
doaj   +1 more source

Antibiotic-resistant Escherichia Coli from Retail Poultry Meat with Different Antibiotic Use Claims [PDF]

open access: yes, 2018
Background We sought to determine if the prevalence of antibiotic-resistant Escherichia coli differed across retail poultry products and among major production categories, including organic, “raised without antibiotics”, and conventional.
Davis, Gregg S.   +10 more
core   +2 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

Antibiotic residues and R-plasmid selection: are in vitro methods good models? [PDF]

open access: yes, 1987
Three clones of E. coli, one of which was harbouring a tetracycline resistance plasmid were inoculated together into the stomach of axenic mice. Without antibiotic selective pressure, the R-Plasmid bearing strain became dominant in the faeces of mice ...
Corpet, Denis E., Lumeau, Solange
core   +2 more sources

Receptor and secreted targets of Wnt-1/beta-catenin signalling in mouse mammary epithelial cells. [PDF]

open access: yes, 2005
BackgroundDeregulation of the Wnt/ beta-catenin signal transduction pathway has been implicated in the pathogenesis of tumours in the mammary gland, colon and other tissues. Mutations in components of this pathway result in beta-catenin stabilization and
Ashworth, Alan   +2 more
core   +3 more sources

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

open access: yesAdvanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir   +7 more
wiley   +1 more source

Regulation of the putative ykkCD riboswitch by tetracycline and related antibiotics in Bacillus subtilis [PDF]

open access: yes, 2013
Multi-drug resistance among bacterial pathogens can be mediated by a number of mechanisms, including multidrug efflux pumps. One such pump in Bacillus spp. is ykkCD, a heterodimer of the SMR family consisting of C and D subunits.
Frecker, Nicholas L.
core   +2 more sources

Multidrug-resistant Escherichia coli and Tetracycline-resistant Enterococcus faecalis in wild raptors of Alabama and Georgia, USA [PDF]

open access: yes, 2019
Wild birds inhabit in a wide variety of environments and can travel great distances. Thus, wild birds can possibly spread antimicrobial resistance along the way, and this may represent a potential public health concern.
Bellah, Jamie   +7 more
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

Occurrence and transformation of veterinary pharmaceuticals and biocides in manure: a literature review [PDF]

open access: yes, 2016
The spread of veterinary medicinal products (VMPs) and biocides via manure onto agriculturally used areas represents a very important emission into the environment for these product groups.
Berkner, Silvia   +5 more
core   +1 more source

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