11 Enzymatic inhibition: Inhibitors of the biosinthesis of the cellular wall

SPARK ◽  
2019 ◽  
Author(s):  
Joaquín M. Campos Rosa ◽  
M. Encarnación Camacho Quesada
Keyword(s):  
Enzymatic Inhibition ◽  
Cellular Wall

Architecture of Radiolitid Rudist (Mollusca) Shell-Wall Structures and its Phylogenetic Implications

1975 ◽  
Vol 33 ◽  
pp. 686-687
Author(s):  
David H. Sturm ◽  
Bob F. Perkins
Keyword(s):  
Phylogenetic Relationships ◽  
Outer Wall ◽  
Shell Microstructure ◽  
Shell Wall ◽  
Wall Structures ◽  
Phylogenetic Implications ◽  
Cellular Wall ◽  
Superfamily Analysis ◽  
Central Texas

Each of the seven families of rudists (Mollusca, Bivalvia, Hippuritacea) is characterized by distinctive shell-wall architectures which reflect phylogenetic relationships within the superfamily. Analysis of the complex, calcareous, cellular wall of the attached valve of the radiolite rudist Eoradiolites davidsoni (Hill) from the Comanche Cretaceous of Central Texas indicates that its wall architecture is an elaboration of the simpler monopleurid rudist wall and supports possible radiolite-monopleurid relationships.Several well-preserved specimens of E. davidsoni were sectioned, polished, etched, and carbon and gold coated for SEM examination. Maximum shell microstructure detail was displayed by etching with a 0.7% HC1 solution from 80 to 100 seconds.The shell of E. davidsoni comprises a large, thick-walled, conical, attached valve (AV) and a small, very thin, operculate, free valve (FV) (Fig. 1a). The AV shell is two-layered with a thin inner wall, in which original structures are usually obliterated by recrystallization, and a thick, cellular, outer wall.

scholarly journals Hybrid Approach for Wood Modification: Characterization and Evaluation of Weathering Resistance of Coatings on Acetylated Wood

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 658
Author(s):  
Anna Sandak ◽  
Edit Földvári-Nagy ◽  
Faksawat Poohphajai ◽  
Rene Herrera Diaz ◽  
Oihana Gordobil ◽  
...  
Keyword(s):  
Service Life ◽  
Hybrid Approach ◽  
Wood Properties ◽  
Wood Products ◽  
Superior Performance ◽  
Surface Erosion ◽  
Coating Film ◽  
Chemical Treatments ◽  
Cellular Wall ◽  
Bulk Substrate

Wood, as a biological material, is sensitive to environmental conditions and microorganisms; therefore, wood products require protective measures to extend their service life in outdoor applications. Several modification processes are available for the improvement of wood properties, including commercially available solutions. Among the chemical treatments, acetylation by acetic anhydride is one of the most effective methods to induce chemical changes in the constitutive polymers at the cellular wall level. Acetylation reduces wood shrinkage-swelling, increases its durability against biotic agents, improves UV resistance and reduces surface erosion. However, even if the expected service life for external cladding of acetylated wood is estimated to be 60 years, the aesthetics change rapidly during the first years of exposure. Hybrid, or fusion, modification includes processes where the positive effect of a single treatment can be multiplied by merging with additional follow-up modifications. This report presents results of the performance tests of wood samples that, besides the modification by means of acetylation, were additionally protected with seven commercially available coatings. Natural weathering was conducted in Northern Italy for 15 months. Samples were characterized with numerous instruments by measuring samples collected from the stand every three months. Superior performance was observed on samples that merged both treatments. It is due to the combined effect of the wood acetylation and surface coating. Limited shrinkage/swelling of the bulk substrate due to chemical treatment substantially reduced stresses of the coating film. Hybrid process, compared to sole acetylation of wood, assured superior visual performance of the wood surface by preserving its original appearance.

qNMR quantification of phenolic compounds in dry extract of Myrcia multiflora leaves and its antioxidant, anti-AGE, and enzymatic inhibition activities

2021 ◽  
pp. 114109
Author(s):  
Edinilze S.C. Oliveira ◽  
Flávia L.D. Pontes ◽  
Leonard D.R. Acho ◽  
Alessandro S. do Rosário ◽  
Bárbara Janaína P. da Silva ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Dry Extract ◽  
Enzymatic Inhibition

The Glycocalyx Protects Erythrocyte-Bound Tissue-Type Plasminogen Activator from Enzymatic Inhibition

2007 ◽  
Vol 321 (1) ◽  
pp. 158-164 ◽  
Author(s):  
Kumkum Ganguly ◽  
Juan-Carlos Murciano ◽  
Randal Westrick ◽  
John Leferovich ◽  
Douglas B. Cines ◽  
...  
Keyword(s):  
Plasminogen Activator ◽  
Tissue Type ◽  
Tissue Type Plasminogen Activator ◽  
Enzymatic Inhibition ◽  
Type Plasminogen Activator

A Triazolotriazine‐Based Dual GSK‐3β/CK‐1δ Ligand as a Potential Neuroprotective Agent Presenting Two Different Mechanisms of Enzymatic Inhibition

ChemMedChem ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. 310-314 ◽  
Author(s):  
Sara Redenti ◽  
Irene Marcovich ◽  
Teresa De Vita ◽  
Concepción Pérez ◽  
Rita De Zorzi ◽  
...  
Keyword(s):  
Neuroprotective Agent ◽  
Enzymatic Inhibition ◽  
Gsk 3Β

scholarly journals Synthesis of biomorphic SiC and SiO2 ceramics

2008 ◽  
Vol 73 (7) ◽  
pp. 745-751 ◽  
Author(s):  
Adela Egelja ◽  
Jelena Gulicovski ◽  
Aleksandar Devecerski ◽  
Biljana Babic ◽  
Miroslav Miljkovic ◽  
...  
Keyword(s):  
Porous Ceramics ◽  
X Ray Diffraction ◽  
Pressure Infiltration ◽  
X Ray ◽  
Carbon Template ◽  
Cellular Wall ◽  
Infiltration Technique ◽  
Coniferous Wood ◽  
Biomorphic Ceramics

Coniferous wood (fir) was transformed by pyrolysis into carbon preforms, which were subsequently converted into biomorphic ceramics by the pressure infiltration technique with colloidal silica. An in situ reaction between the silica and the carbon template occurred in the cellular wall at a high sintering temperature. Depending on the employed atmosphere, non-oxide (SiC) or oxide (SiO2) ceramics were obtained. The morphology of the resulting porous ceramics and their phase composition were investigated by scanning electron microscopy (SEM/EDX) and X-ray diffraction (XRD). The experimental results showed that the biomorphic cellular morphology of the wood maintained in both the SiC and silica ceramics, which consisted of only the b-SiC phase and SiO2, respectively. .

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