p Mineralogical and paleobotanical investigations of Oligo-Miocene petrified wood from the southwest of Thrace Basin (NW Turkey)

Petrified wood samples are found within terrestrial sediments belonging to the Late Oligocene-Early Miocene Danismen Formation in Malkara-Kesan located in the southwest of the Thrace Basin. The petrified wood in both regions is usually silicified and partly coalified. The silicification of the Tertiary wood in the Malkara-Kesan region is associated with volcanic activity and coeval sedimentation. Thin sections from petrified wood samples were taken as transverse, tangential, and radial sections. The mineralogicalpetrographic-botanical studies were carried out under a polarizing and botanical microscope. Opal-moganite-chalcedony-quartz, which are different polymorphs of silica, were detected under the microscope in the petrified wood. Results were supported by X-Ray density in a total of five samples. In addition, scanning electron microscopy (SEM/EDS) was performed for textures and to determine the average elementary composition of wood samples. Results showed that while crystalline quartz and chalcedony were well defined, opal-A and other polymorphs of silica could be partly examined due to isotropic features. As a result of XRD studies of petrified wood samples from the Kesan and Malkara regions, the peaks of the crystalline types of silica were well defined in the diffractogram patterns. As a result of FT-IR analysis, polymorphs of silica such as quartz-chalcedony-moganite and mineralogical elements similar to carbon and graphite were detected. In two samples, the densities of chalcedony and quartz composition were 2.35 and 2.27 g/cm3, respectively. Furthermore, the average elementary composition was detected with SEM-EDS analysis as O, Si, S, Ca, Cr, and Fe elements in the Kesan region samples and O, Si, S, and Fe elements in the Malkara region samples. The results of all investigations and analyses were interpreted to understand the geodynamic evolution and paleobotanical properties of the region

Synthesis and characterization of copper phthalocyanine and tetracarboxamide copper phthalocyanine deposited mica-titania pigments

Combination pigments were synthesized by the deposition of copper phthalocyanine and tetracarboxamide copper phthalocyanine on a mica-titania pigment in dimethyl formamide solvent to improve color properties. The MIR and XRD analyses were performed to observe the crystal transformations of the pigments on the substrate. The stable beta form of copper phthalocyanine normally preferred in paint applications was obtained at 90 degrees C and 120 degrees C, while tetracarboxamide copper phthalocyanine remained amorphous at all temperatures experimented. Pigment surface morphologies were investigated by SEM analysis. Copper phthalocyanine crystalline rods were observed on the mica-titania substrate, however, the tetracarboxamide copper phthalocyanine pigment did not exhibit any such crystalline structure due to its amorphous structure, which was confirmed by XRD analysis. Furthermore, nitrogen elemental analysis was performed to determine the amount of copper phthalocyanines adsorbed to the mica-titania surfaces at different temperatures. The resulting combination pigments showed enhanced luster, good dispersion, hue, and high color intensity

The effect of tin dioxide (SnO2) on the anatase-rutile phase transformation of titania (TiO2) in mica-titania pigments and their use in paint

The synthesis of mica-titania special effect pigment and the effect of rutile promoting additive, tin dioxide (SnO2), on the phase transformation of titanium dioxide (TiO2) were investigated. SnO2 coating with variable thicknesses on sieved and pre-treated muscovite mica prior to TiO2 coating yields a pearlescent pigment with higher rutile-to-anatase ratio. Different than what is reported in a few cases, not the co-deposition of SnO2 and TiO2, but the coating of SnO2 before TiO2 was found critical in obtaining TiO2 coatings consisting of 95% rutile phase at 1073 K. A calcination temperature as low as 1073 K resulted in the preservation of substrate's structural integrity. Scanning electron microscopy analyses showed that SnO2 promotes TiO2 growth at certain nucleation points rather than random nucleation points. Mica-titania pigments were incorporated in the acrylic based paints and gloss and hardness characteristics of the paint specimens were measured. Specimens with increased rutile content showed improved gloss

Effect of the Amount of Polysorbate 80 and Oregano Essential Oil on the Emulsion Stability and Characterization Properties of Sodium Alginate Microcapsules

Essential oils have a high volatility that leads to evaporation and loss of their pharmacological effect when exposed to the environment. The objectives of the present work were to prepare microcapsules with oregano essential oil by extrusion using sodium alginate as a shell material and non-ionic surfactant polysorbate 80 as an emulsifier to stabilize the emulsion. The present study was aimed to evaluate the physical parameters of microcapsules and to compare the influence of the amount of emulsifier and the essential oil-to-emulsifier ratio on the capsules’ physical parameters and encapsulation efficiency; to our knowledge, the existing research had not yet revealed whether unstable emulsion affects the encapsulation efficiency of oregano essential oil. This study showed that increasing the emulsifier amount in the formulation significantly influenced encapsulation efficiency and particle size. Moreover, increasing the emulsion stability positively influenced the encapsulation efficiency. The emulsion creaming index depended on the emulsifier amount in the formulation: the highest creaming index (%) was obtained with the highest amount of polysorbate 80. However, the essential oil-to-polysorbate 80 ratio and essential oil amount did not affect the hardness of the microcapsules (p > 0.05). In conclusion, the obtained results could be promising information for production of microcapsules. Despite the fact that microencapsulation of essential oils is a promising and extremely attractive application area for the pharmaceutical industry, further basic research needs to be carried out

FALLS AND AWARENESS ABOUT FALLS IN ELDERLY AND DEFINING THEIR RELATIONS WITH QUALITY OF LIFE

Uner, Sarp/0000-0002-9880-8811; Telatar, Gokhan/0000-0002-3261-3464; Bicer, Burcu Kucuk/0000-0002-5615-264XWOS: 000446617400606[No abstract available

Supplementary Information from Targeting TACC3 Induces Immunogenic Cell Death and Enhances T-DM1 Response in HER2-Positive Breast Cancer

This file contains supplementary methods, 11 supplementary figures and 2 supplementary tables</p

Supplementary Table S1 from Targeting TACC3 Induces Immunogenic Cell Death and Enhances T-DM1 Response in HER2-Positive Breast Cancer

This file contains Supplementary Table S1</p