Results 41 to 50 of about 5,737 (220)

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni   +15 more
wiley   +1 more source

Pulsed and Cyclic Voltammetric Studies of Phenols and Naphthols in Dimethylformamide in Presence of Sodium 4-Vinylbenzenesulfonate

open access: yesChemistry
The influence of sodium 4-vinylbenzenesulfonate on the electrooxidation of phenols and naphthols was studied in dimethylformamide (DMF). The usually observed deactivation of phenol in non-aqueous environments was suppressed upon addition of sodium 4 ...
László Kiss, András Kiss
doaj   +1 more source

Chiral phosphoric acid catalyzed aminative dearomatization of α-naphthols/Michael addition sequence

open access: yesNature Communications, 2019
Catalytic asymmetric dearomatization (CADA) reactions readily convert common aromatic compounds to diverse 3D chiral, polycyclic molecules. Here, the authors report an intermolecular asymmetric dearomatization of nucleophile-tethered α-naphthols ...
Zi-Lei Xia   +3 more
doaj   +1 more source

2,4-Dinitro-1-naphthol

open access: yesActa Crystallographica Section E Structure Reports Online, 2010
In the title compound, C(10)H(6)N(2)O(5), the two fused rings are almost co-planar, with an r.m.s. deviation of 0.0163 Å. The nitro groups are oriented at dihedral angles of 2.62 (11) and 44.69 (11)° with respect to the plane of the parent fused rings. Intra-molecular O-H⋯O and C-H⋯O hydrogen bonds complete S(6) ring motifs.
Amra Rubab   +3 more
openaire   +3 more sources

Biofabrication of Endothelialized, Intrinsically Vascularized 3D‐Printed Recombinant Spider Silk Scaffolds

open access: yesAdvanced Healthcare Materials, EarlyView.
This study evaluates 3D‐printed recombinant spider silk hydrogel eADF4(C16)‐RGD in a rat AV loop model for tissue engineering. Constructs with T17b endothelial progenitor cells showed enhanced vascularization and biodegradation. Results highlight the importance of scaffold design and cellular integration in improving vascular density and overall ...
Claire M. Weinhold   +9 more
wiley   +1 more source

Trichloroisocyanuric acid, a New and Efficient Catalyst for the Synthesis of 2′- Aminobenzothiazolo-arylmethyl-2-naphthols

open access: yesE-Journal of Chemistry, 2012
An efficient one-pot synthesis of 2′-aminobenzothiazolo-arylmethyl-2-naphthols is described. This involves the three-component reaction of β-naphthol, aromatic aldehydes and 2-aminobenzothiazole in the presence of a catalytic amount of ...
Limin Yang
doaj   +1 more source

Surface photochemistry of the herbicide napropamide. The role of the media and environmental factors in directing the fates of intermediates [PDF]

open access: yes, 2008
The photochemical behaviour of the herbicide napropamide is studied on cellulose and silica surfaces, using steady-state and laser-flash diffuse ectance techniques.
Aguer   +35 more
core   +1 more source

A Biochar‐Based Composite Hydrogel Microenvironment for Enhanced Biocatalysis

open access: yesAdvanced Materials, EarlyView.
This work presents the synthesis of a polyacrylamide hydrogel wherein biomass‐derived biochar is co‐encapsulated with the enzyme horseradish peroxidase (HRP). The resulting composite hydrogel possesses balanced electron‐rich and electron‐deficient domains, creating an optimal microenvironment that concentrates both hydrogen peroxide and phenol ...
Shengzhe Wang   +9 more
wiley   +1 more source

Divers modes d'oxygénation des composés hydroxylés. Deuxième partie: cas des phénols et composés apparentés. Various Ways of Oxygenation Hydroxyl Compounds.Part Two: Case of Phenols and Related Compounds

open access: yesOil & Gas Science and Technology, 2006
Cet article examine les divers modes d'oxygénation des phénols, naphtols, anthranols et flavonols en mettant en évidence, dans la mesure du possible, la formation des peroxydes intermédiaires.Ainsi, en plus des éléments fournis dans d'autres publications
Karnojitzky V. J.
doaj   +1 more source

Three component, one-pot synthesis of amidoalkyl naphthols using polyphosphate ester under solvent-free conditions

open access: yesJournal of Saudi Chemical Society, 2014
Amidoalkyl naphthols are synthesized via a simple, one-pot, three-component reaction between aldehydes, 2-naphthol and amides or ureas using polyphosphate ester (PPE) as a reaction mediator under solvent-free conditions in good to excellent yields.
Hassan Moghanian, Sattar Ebrahimi
doaj   +1 more source

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