Results 81 to 90 of about 54,764 (213)

Beta-hydroxyphosphonate ribonucleoside analogues derived from 4-substituted-1,2,3-triazoles as IMP/GMP mimics: synthesis and biological evaluation

open access: yesBeilstein Journal of Organic Chemistry, 2016
A series of seventeen β-hydroxyphosphonate ribonucleoside analogues containing 4-substituted-1,2,3-triazoles was synthesized and fully characterized. Such compounds were designed as potential inhibitors of the cytosolic 5’-nucleotidase II (cN-II), an ...
Tai Nguyen Van   +7 more
doaj   +1 more source

Asymmetrically Substituted s‐Triazine Phosphonates by One‐Step Synthesis

open access: yesChemistryOpen, 2023
Asymmetrically substituted s‐triazine phosphonates with up to three different phosphonate groups C3N3RR'R” with R, R’, R”=PO(OR”’) and R”’=for example, methyl, ethyl, isopropyl or n‐butyl are interesting as polymer additives like flame retardants ...
Claudia Vogt   +5 more
doaj   +1 more source

Structural investigations of the regio- and enantioselectivity of lipases [PDF]

open access: yes, 1998
Although lipases are widely applied for the stereospecific resolution of racemic mixtures of esters, the atomic details of the factors that are responsible for their stereospecificity are largely obscure. We determined the X-ray structures of Pseudomonas
Bando   +38 more
core   +2 more sources

Aplicação de fosfito de potássio, cálcio ou magnésio para a redução da podridão-do-pé do mamoeiro em casa de vegetação Papaya foot rot reduction under nursery conditions with application of potassium, calcium, or magnesium phosphate

open access: yesCiência Rural, 2009
O controle da podridão-do-pé (Phytophthora palmivora) do mamoeiro (Carica papaya) é essencial para reduzir perdas e aumentar a produtividade dos plantios.
Alexei de Campos Dianese   +3 more
doaj   +1 more source

New Multifunctional Lanthanide and Zr(IV) Phosphonates Derived from the 5-(dihydroxyphosphoryl) Isophthalate Ligand as Proton Conductors [PDF]

open access: yes, 2019
Metal phosphonates are essentially acidic solids featured by groups such as P-OH, -COOH, etc. Moreover, the presence of coordination and lattice water molecules favors the formation of H-bond networks, which make these compounds appropriate as proton ...
Bazaga García, Montse   +8 more
core  

Superconducting HfO2-YBa2Cu3O7-δ nanocomposite films deposited using ink-jet printing of colloidal solutions [PDF]

open access: yes, 2019
To reduce the fabrication costs while maximizing the superconducting and pinning properties of YBa2Cu3O7−δ (YBCO) nanocomposite films, the drop-on-demand ink-jet printing technique was used to deposit colloidal YBCO inks onto LaAlO3 substrates.
Cayado, Pablo   +10 more
core   +2 more sources

PhnW-PhnX pathway in dinoflagellates not functional to utilize extracellular phosphonates

open access: yesFrontiers in Marine Science, 2016
Phosphorus (P) is an essential nutrient for marine phytoplankton but its preferred form, dissolved inorganic phosphorus (DIP), is often limited in the euphotic zone of the ocean.
Yudong eCui   +5 more
doaj   +1 more source

Degradation behaviour of potassium K-phosphite in apple trees [PDF]

open access: yes, 2008
Although potassium phosphite is not registered for organic fruit production in Europe, it has long been regarded as a potential alternative to sulphur- and copper-containing fungicides.
Casera, Claudio   +2 more
core  

Diversity and abundance of phosphonate biosynthetic genes in nature [PDF]

open access: yes, 2013
Phosphonates, molecules containing direct carbon–phosphorus bonds, compose a structurally diverse class of natural products with interesting and useful biological properties.
Circello, Benjamin   +7 more
core   +1 more source

Nanoengineering of Phosphate/Phosphonate Drugs via Competitive Replacement with Metal‐Phenolic Networks to Overcome Breast Tumor with Lung and Bone Metastasis

open access: yesAdvanced Science
Phosphate and phosphonate drugs are vital in building organisms, regulating physiological processes, and exhibiting diverse biological activities, including antiviral, antibacterial, antineoplastic, and enzyme‐inhibitory effects.
Wanrui Shi   +7 more
doaj   +1 more source

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