Results 91 to 100 of about 296,429 (339)

Systematic Engineering of Proteases in Saccharopolyspora Spinosa Reveals Synergistic Enhancement of Spinosad Biosynthesis via Substrate Flux Optimization

Advanced Science, EarlyView.
ARTP mutagenesis yielded Saccharopolyspora spinosa mutant D184 with improved extracellular nitrogen utilization. An integrated workflow of protease genetic manipulation, multi‐omics, and rational synergy design pinpointed a pepP‐clpP‐htpX synergistic triangular combination.
Duo Jin, Wangqiong Chen, Danlu Yang, Qing Liu, Baolong Bai, Zirui Dai, Xirong Liu, Zirong Zhu, Jie Rang, Liqiu Xia   +9 more
wiley   +1 more source

Impact of two nano-pesticide formulations in combating the two-spotted spider mite, Tetranychus urticae Koch, and their residues in cucumber fruits, Cucumis sativus L

Scientific Reports
Nano-pesticides aim to improve the efficacy and safety of conventional pesticides, but as they are still in the early stages of development, data about their environmental fate is insufficient.
Al-kazafy Hassan Sabry, Rania Mohamed Ahmed Helmy, Rasha Ahmed Sleem, Shaker Mohamed Abolmaaty, Aziza Hassan Mohamady   +4 more
doaj   +1 more source

Behavioural and insecticidal effects of organophosphate-, carbamate- and pyrethroid-treated mosquito nets against African malaria vectors.

, 2009
Three insecticides - the pyrethroid deltamethrin, the carbamate carbosulfan and the organophosphate chlorpyrifos-methyl - were tested on mosquito nets in experimental huts to determine their potential for introduction as malaria control measures.
Asidi, Binka, Czeher, Fanello, Guillet, Hill, Hougard, Kolaczinski, Mahande, Mosha, Mosha, N���Guessan, Sharp, Smith, Stump, Tabashnik, World Health Organization, Zaim   +17 more
core   +1 more source

Ameliorating Effect of Chloride on Nitrite Toxicity to Freshwater Invertebrates with Different Physiology: a Comparative Study Between Amphipods and Planarians [PDF]

, 2008
High nitrite concentrations in freshwater ecosystems may cause toxicity to aquatic animals. These living organisms can take nitrite up from water through their chloride cells, subsequently suffering oxidation of their respiratory pigments (hemoglobin ...
Alonso, A., Camargo, J.A.
core   +2 more sources

Microneedle-based bioassays

Nanoscale Advances, 2020
This review summarizes recent developments in microneedle-based bioassays.
Jixiang Zhu, Xingwu Zhou, Alberto Libanori, Wujin Sun   +3 more
openaire   +3 more sources

Comparison of the standard WHO susceptibility tests and the CDC bottle bioassay for the determination of insecticide susceptibility in malaria vectors and their correlation with biochemical and molecular biology assays in Benin, West Africa

Parasites & Vectors, 2013
BackgroundThe detection of insecticide resistance in natural populations of Anopheles vectors is absolutely necessary for malaria control. In the African region, the WHO insecticide susceptibility test is the most common method for assessing resistance ...
Nazaire Aïzoun, R. Ossè, R. Azondekon, Roland Alia, Olivier Oussou, V. Gnanguénon, Rock Aikpon, G. Padonou, M. Akogbeto   +8 more
semanticscholar   +1 more source

Poria cocos as a Functional Food for Diabetes and Diabetes‐Related Foot Ulcers

AgriFood: Journal of Agricultural Products for Food, EarlyView.
Poria cocos is known as an edible mushroom for food and medicine. Poria cocos and its terpenes and terpenoids serve as novel remedies to treat diabetes and its ulcers. Its mode of actions includes reduction of insulin resistance, starch digestion and inflammation as well as promotion of blood vessel formation. ABSTRACT Poria cocos is a medicinal fungus
Yi‐San Lee, Tien‐Fen Kuo, Greta Yang, Wen‐Chin Yang   +3 more
wiley   +1 more source

Synthesis of IFN-β by Virus-Infected Chicken Embryo Cells Demonstrated with Specific Antisera and a New Bioassay [PDF]

, 2004
Transcripts of interferon-α(IFN-α) and IFN-β genes are present in virus-infected chicken cells, but because of a lack of appropriate assays and reagents, it was unclear if biologically active IFN-β is secreted.
Harlin, Olof, Kaspers, Bernd, Ohnemus, Annette, Schwarz, Heike, Staeheli, Peter   +4 more
core   +1 more source

Integration of Microfractionation, qNMR and Zebrafish Screening for the In Vivo Bioassay-Guided Isolation and Quantitative Bioactivity Analysis of Natural Products

PLoS ONE, 2013
Natural products (NPs) are an attractive source of chemical diversity for small-molecule drug discovery. Several challenges nevertheless persist with respect to NP discovery, including the time and effort required for bioassay-guided isolation of ...
Nadine Bohni, M. L. Cordero-Maldonado, Jan Maes, Dany Siverio-Mota, L. Marcourt, S. Munck, A. Kamuhabwa, M. Moshi, Camila V. Esguerra, P. D. de Witte, A. Crawford, J. Wolfender   +11 more
semanticscholar   +1 more source

Microfluidic Mixing with the Dynamic Control of Magnetic Actuation

Advanced Intelligent Systems, EarlyView.
Schematic illustration and flow field visualization of magnetically actuated L‐shaped microrobots displaying cooperative vortex generation for enhanced microscale mixing. The left side shows the electromagnetic actuation setup, which enables programmable control of rotational direction and frequency.
Prashant Kishor Sharma, Tsung‐Yen Lu, Chia‐Yuan Chen   +2 more
wiley   +1 more source