Electroless deposition of silver was studied to determine how chemical and physical parameters affect the morphology of the deposited metal. The study was conducted using variations of a silver deposition bath originally described by Danscher. The standard bath produced reflective and electrical...
The aim of the current study was to biosynthesize the silver nanoparticles (AgNPs) from the bacterial strain of Bacillus cereus (ATCC 14579) extracellularly. When bacterial extract was challenged with 1 mM silver nitrate (AgNO3) the color of the extract changed into brown confirms the formation ...
Silver is used in different applications that result in contact with skin and mucosal surfaces (e.g., jewelry, wound dressings, or eye drops). Intact skin poses an effective barrier against the absorption of silver. Mucosal surfaces are observed to be less effective barriers and compromised skin...
This review analyzes electrochemical biosensors for the determination of lactate (lactic acid) and pyruvate (pyruvic acid) concentrations in liquid samples, especially in the blood serum. The biosensor systems for the simultaneous determination of both substances and commercial variants of the b...
Here we report the first mediated microneedles-based biosensor for minimally invasive continuous sensing of lactate in the dermal interstitial fluid (ISF). To further demonstrate the capability of microneedle arrays as second generation biosensors we have functionalized gold microneedles with na...
l-Lactate is an important biomarker for clinical diagnostics and fitness monitoring that shows oxygen deficiency or elevated salt concentrations due to pathophysiological conditions or intensive exercise. To avoid current painful and inconvenient blood testing techniques of measuring lactate lev...
This article, based on a presentation at the 18th International Symposium on Analytical and Applied Pyrolysis in Costa Teguise, May 18–23, 2008, will give a brieve approach for systematization of thermal rearrangements occurring within the series of pinane- and pinene-type compounds. To reach t...
A convenient, reproducible two-step method for preparing 6,6-dimethylbicyclo[3.1.1]heptane-2,4-dione is described. The method involves isomerizing the double bond of commercially available (−)-verbenone as previously described, followed by ozonolysis to give the desired product in good yield.
Poly-β(+)-pinene (pB(+)p) was synthesized with γ irradiation of the monomer β(+)-pinene in bulk under vacuum at 1181 kGy. Also scalemic mixtures of β(+)-pinene and β(−)-pinene were irradiated at 1181 kGy to obtain synthetic copolymers of pB(+)/B(−)p. For comparison also β(−)-pinene was con...
The potential energy surfaces for the reactions of α-pinene and β-pinene with NO3 radicals are explored by using M06-2X hybrid meta density functional theory (HMDFT) method. On the basis of the optimized geometries and energies of the intermediates and transition states, the mechanisms of the ...
AimsLinalool and β-pinene are two volatile monoterpenes that possess antidepressant-like activity. These are components of many aromatic plants used in folk medicine around the world to relieve anxiety and depression. In this contribution, we focused on examining the mechanism of action of thes...
This study investigated the reduction of terpene emissions from Oriented Strand Boards (OSB) by pre-treatment of pine wood strands with a mixed culture of Pseudomonas bacteria and the ascomycete Penicillium nigricans. While Pseudomonas alone efficiently degraded α-pinene and β-pinene, the comb...
The detailed molecular composition of laboratory-generated secondary organic aerosols (SOA) during the high-NO photooxidation of β-pinene (βP) was investigated using a novel thermal desorption dichloromethane-assisted low-pressure photoionization mass spectrometry (TD-CH2Cl2-assisted LPPI-MS) ...
A natural zeolite presents in rocks of volcanic origin located in Colombia was characterized and tested for the isomerization of β-pinene epoxide. The material was characterized by TPD-NH3, BET, SEM, FRX, FTIR of adsorption-desorption of pyridine, TPD-CO2 and TPR-H2. It was found that 65% of th...
IntroductionPinenes are the most abundant components in the essential oils of various plant species. (+)-α-Pinene and (+)-β-pinene are bicyclic monoterpene hydrocarbons with different fragrance qualities. The present study was carried out to investigate the effect of inhalation of isomeric aro...
Fe and Cu based heterogeneous catalysts were evaluated in the isomerization reaction of α- and β-pinene epoxides. The metals were incorporated on SBA-15 and MCM-41 using incipient wetness impregnation procedure and the materials were characterized by XRD, Raman spectroscopy, BET analysis, NH3-...
The crystal structure and supramolecular architectures of Schiff bases derived from the o-arsanilic acid, (E)-(2-(4-hydroxybenzylidene)aminophenyl)arsonic acid(I); (E)-(2-(4-methoxybenzylidene)aminophenyl)arsonic acid (II) and (E)-(2-(3-cyanobenzylidene)aminophenyl)arsonic acid (III) are reporte...
The solubility of sulfamerazine (SMR) and sulfamethazine (SMT) in some ethanol + water cosolvent mixtures was measured at five temperatures from 293.15 to 313.15 K in all the polarity range provided by the aqueous mixtures. The mole fraction solubility of both drugs was maximal in the mixture 0....
Understanding the dynamics of veterinary antibiotic and related antibiotic resistance genes (ARGs) during swine manure composting is crucial in assessing the environmental risk of antibiotics, which could effectively reduce their impact in natural environments. This study investigated the dissip...
A nickel-foam cathode modified by a self-nitrogen-doped biochar derived from waste giant reed was synthesized. The fabricated cathode ([email protected]) proved to be with high oxygen reaction reactive (ORR) reactivity and H2O2 selectivity (70.41%) owing to the enrichment of oxygen functional gr...
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