Results 21 to 30 of about 77,453 (168)

Exposure of Rats to Multi-Walled Carbon Nanotubes: Correlation of Inhalation Exposure to Lung Burden, Bronchoalveolar Lavage Fluid Findings, and Lung Morphology

Nanomaterials, 2023
To evaluate lung toxicity due to inhalation of multi-walled carbon nanotubes (MWCNTs) in rats, we developed a unique MWCNT aerosol generator based on dry aerosolization using the aerodynamic cyclone principle.
Tatsuya Kasai, Shoji Fukushima
doaj   +1 more source

Humoral cross-reactivity towards SARS-CoV-2 in young children with acute respiratory infection with low-pathogenicity coronaviruses

Journal of Clinical Virology Plus, 2022
Background: SARS-CoV-2 infection in children frequently leads to only asymptomatic and mild infections. It has been suggested that frequent infections due to low-pathogenicity coronaviruses in children, impart immunity against SARS-CoV-2 in this age ...
Nitin Dhochak, Tanvi Agrawal, Heena Shaman, Naseem Ahmed Khan, Prawin Kumar, Sushil K. Kabra, Guruprasad R. Medigeshi, Rakesh Lodha   +7 more
doaj   +1 more source

Chloramphenicol Bioassay [PDF]

Antimicrobial Agents and Chemotherapy, 1979
An accurate plate diffusion bioassay for chloramphenicol is described, in which the fast-replicating Beneckea natriegens and 1.5% salt agar are used. Zones of inhibition were well defined after 3 h, and the limit of sensitivity of the method was around 2 μg/ml. The concurrent presence of gentamicin did not influence
R M, Bannatyne, R, Cheung
openaire   +2 more sources

Neutralizing antibodies from prior exposure to dengue virus negatively correlate with viremia on re-infection

Communications Medicine, 2023
Background India is hyperendemic to dengue and over 50% of adults are seropositive. There is limited information on the association between neutralizing antibody profiles from prior exposure and viral RNA levels during subsequent infection.
Anbalagan Anantharaj, Tanvi Agrawal, Pooja Kumari Shashi, Alok Tripathi, Parveen Kumar, Imran Khan, Madhu Pareek, Balwant Singh, Chitra Pattabiraman, Saurabh Kumar, Rajesh Pandey, Anmol Chandele, Rakesh Lodha, Stephen S. Whitehead, Guruprasad R. Medigeshi   +14 more
doaj   +1 more source

Preparation of Monoclonal Antibody and Development of Indirect Competitive Enzyme-Linked Immunosorbent Assay and Fluorescence-Linked Immunosorbent Assay for Detecting 3-Amino-5-methylmorpholino-2-oxazolidinone (AMOZ) in Edible Animal Tissue

Molecules, 2021
To monitor the illegal used of furaltadone, a highly sensitive indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and fluorescence-linked immunosorbent assay (FLISA) based on a monoclonal antibody (mAb) were developed for the detection of ...
Yong Xie, Yarong Wang, Xueling Yan, Lu Gan, Tao Le   +4 more
doaj   +1 more source

Metronidazole Bioassay [PDF]

Antimicrobial Agents and Chemotherapy, 1976
Urine from patients receiving metronidazole [1-(2-hydroxyethyl)-2-methyl-5-nitromidazole] orally or per vagina were subjected to paper chromatographic fractionation and examined for anticlostridial activity. Unmodified metronidazole and several metabolites were detected.
W T, Speck, A B, Stein, H S, Rosenkranz
openaire   +2 more sources

EFFICACY AND BIOCHEMICAL EFFECTS OF SOME INSECTICIDES AGAINST COTTON LEAFWORM, Spodoptera littoralis (BOISD.) [PDF]

Arab Universities Journal of Agricultural Sciences, 2019
he efficiency and biochemical effects of certain insecticides belonging to different groups namely: flubendiamide (diamide), pyridalyl (phenoxy-pyridaloxy), clothianidin (neonicotinoide), fipronil (phenylpyrazole) and spirotetramat (tetramic acid) and ...
Rasha Sleem, M. El-Zemaity, M. Hussein, Sherifa El-Sherif   +3 more
doaj   +1 more source

Development of spiro-3-indolin-2-one containing compounds of antiproliferative and anti-SARS-CoV-2 properties

Scientific Reports, 2022
A series of 1″-(alkylsulfonyl)-dispiro[indoline-3,2′-pyrrolidine-3′,3″-piperidine]-2,4″-diones 6a‒o has been synthesized through regioselective multi-component azomethine dipolar cycloaddition reaction of 1-(alkylsulfonyl)-3,5-bis(ylidene)-piperidin-4 ...
Nehmedo G. Fawazy, Siva S. Panda, Ahmed Mostafa, Benson M. Kariuki, Mohamed S. Bekheit, Yassmin Moatasim, Omnia Kutkat, Walid Fayad, May A. El-Manawaty, Ahmed A. F. Soliman, Riham A. El-Shiekh, Aladdin M. Srour, Reham F. Barghash, Adel S. Girgis   +13 more
doaj   +1 more source

PROCESSING OF CRUDE MINERAL OILS AS EMULSIFABLE CONCENTRATES FORMULATION TO EVALUATE THEIR PHYSICAL PROPERTIES AND PESTICIDAL EFFICIENCY [PDF]

Journal of Plant Protection and Pathology, 2011
Three trade mineral oils B. W and Y were formulated as emulsifable concentrates in percentages of 94, 95 and 85, respectively.  The physical properties of the mineral oils used indicated that, Y 85% EC mineral oil was the best one because it was more ...
Shereifa El-Shereif, Y. El-Shiekh
doaj   +1 more source

Efficacy of Entomopathogenic Fungal Formulations against Elasmolomus pallens (Dallas) (Hemiptera: Rhyparochromidae) and Their Extracellular Enzymatic Activities

Toxins, 2022
Elasmolomus pallens are post-harvest insect pests of peanuts that are becoming resistant to chemical insecticides. In this, we study evaluated the effect of conidial formulations on entomopathogenic fungi against E. pallens to reduce the adverse effects.
Fredrick Fidelis Umaru, Khanom Simarani
doaj   +1 more source