Effect of temperature on the morphometrical and physical parameters of erythrocytes and polymorphonuclear leucocytes in Carassius gibelio (Bloch)

Dynamics of the morphometric and physical properties of hemocytes of the Prussian carp Carassius gibelio (Bloch) under the influence of a temperature factor has been studied with atomic force microscopy in experiments in vitr

Seasonal fluctuations of migratory activity of ertebrate nuclear hemocytes at different incubation temperatures

Agarose migration test has shown that nuclear erythrocytes of Cyprinus carpio, Rana ridibunda, and Gallus domesticus are capable for spontaneous locomotions. The migration of red blood cells from frogs is associated with formations of long pseudopodia, whereas that from carps and hens - with short protrusion

The seasonality expressed in motility of frog Rana Ridibunda Pall 1771 erythrocytes and leukocytes in agarose gel under the influence of the temperature

The agarose migration test rexealed the influence of temperature on seasonal fluctuation of locomotional activity of nuclear hemocytes of frogs of the genus Rana Ridibunda Pall. It’s been shown that at different incubation temperatures, the spontaneous migration area of blood cells changed in spring and summer, and did not change during autumn and winte

Artefactual Suboptimal Fixation Effect to Nuclear Staining on Erythrocytes of Lutjanus kasmira (Forsskål 1775)

This research presents the unusual staining characteristic of the teleosts red blood cells–the common bluestripe snapper Lutjanus kasmira, caught at Toc Tan (Allison) Reef, Truong Sa Archipelago, Vietnam, due to side effects of the delayed staining procedure. In addition to the quantitative data measured, the results of microscopic image research showed that, on slides performed with the delayed Romanovsky staining procedure using Giemsa dye, the cell "nucleus" was not dye-stained as seen in the erythrocytes of much other fish. The AFM and SEM images of blood slides show that the structure of the nuclear zone and the nuclear membrane was destroyed. Although methanol is used as one of the common fixatives in biology, the delayed staining still causes artifactual side effects, disrupts the structure of the red blood cell nucleus and can cause confusion when studying cytogenetics

Study to Fabricate the Large Scale Buckypaper Based on Carbon Nanotubes

Carbon nanotubes (CNTs) have attracted great attention because of their unique structural, electrical, mechanical and thermal properties. Then CNTs have potential application as electrode for batteries and supercapacitors, especially binder-free electrodes. The major challenge is to fabricate the large scale electrode with the uniform thickness, electrical property. The large scale CNTs buckypaper can be fabricated via vacuum filtration technique. The characteristics of CNT dispersion and buckypaper depend on variety of factor such as sonication power, sonication time, dispersant…. In this study, we investigate the multiwall carbon nanotubes (MW CNTs) in Isopropanol (IPA) solvent with different sonication conditions, membrane filter size for paper with areal density of 3 mg/cm2 with different sizes such as 4, 10, 20 cm in diameter and large scale of 30x30 cm2. It is observed that the dispersion of CNTs are good and the thickness, conductivity are uniform over whole sample for above sizes. We also can get the highest conductivity of buckypaper was 3.9x103 S/m in 30 mins. It is found that the higher sonication power and higher sonication time are better for buckypaper

The seasonality expressed in motility of frog Rana Ridibunda Pall 1771 erythrocytes and leukocytes in agarose gel under the influence of the temperature

The agarose migration test rexealed the influence of temperature on seasonal fluctuation of locomotional activity of nuclear hemocytes of frogs of the genus Rana Ridibunda Pall. It’s been shown that at different incubation temperatures, the spontaneous migration area of blood cells changed in spring and summer, and did not change during autumn and winte

Seasonal fluctuations of migratory activity of ertebrate nuclear hemocytes at different incubation temperatures

Agarose migration test has shown that nuclear erythrocytes of Cyprinus carpio, Rana ridibunda, and Gallus domesticus are capable for spontaneous locomotions. The migration of red blood cells from frogs is associated with formations of long pseudopodia, whereas that from carps and hens - with short protrusion

Design of Zeolite-Covalent Organic Frameworks for Methane Storage

A new type of zeolite-based covalent organic frameworks (ZCOFs) was designed under different topologies and linkers. In this study, the silicon atoms in zeolite structures were replaced by carbon atoms in thiophene, furan, and pyrrole linkers. Through the adoption of this strategy, 300 ZCOFs structures were constructed and simulated. Overall, the specific surface area of ZCOFs is in the range of 300–3500 m2/g, whereas the pore size is distributed from 3 to 27 Å. Furthermore, the pore volume exhibits a wide range between 0.01 and 1.5 cm3/g. Screening 300 ZCOFs with the criteria towards methane storage, 11 preliminary structures were selected. In addition, the Grand Canonical Monte Carlo technique was utilized to evaluate the CH4 adsorption ability of ZCOFs in a pressure ranging from 1 to 85 bar at a temperature of 298 K. The result reveals that two ZCOF structures: JST-S 183 v/v (65–5.8 bar) and NPT-S 177 v/v (35–1 bar) are considered as potential adsorbents for methane storage. Furthermore, the thermodynamic stability of representative structures is also checked base on quantum mechanical calculations

Graphene‐based catalysts for electrochemical carbon dioxide reduction

Abstract Electrochemical carbon dioxide (CO2) reduction is considered to be an efficient strategy to produce usable fuels and overcome the concerns regarding global warming. For this purpose, an efficient, earth abundant, and a low cost catalyst has to be designed. It has been found that graphene‐based materials could be promising candidates for CO2 conversion because of their unique physical, mechanical, and electronic properties. In addition, the surface of graphene‐based materials can be modified by using different strategies, including doping, defect engineering, producing composite structures, and wrapping shapes. In this review, the fundamentals of electrochemical CO2 reduction and recent progress of graphene‐based catalysts are investigated. Furthermore, recent studies on graphene‐based materials for CO2 reduction are summarized

Soluble MICB protein levels and platelet counts during hepatitis B virus infection and response to hepatocellular carcinoma treatment

Background: The human major histocompatibility complex class I polypeptide-related sequence B (MICB) is a protein that modulates the NK and T cell activation through the NKG2D receptor and is related to several diseases including cancer. Methods: The study investigated the prognostic role of soluble MICB (sMICB) protein in the progression of HBV-related liver diseases and to HBV-related HCC treatment. The sMICB serum levels were measured in 266 chronic HBV-infected Vietnamese patients and in healthy controls, and correlated with clinical and laboratory parameters and with therapeutic interventions for HBV-related HCC. Results: Significant differences in both clinical and laboratory parameters were observed among the patient groups with different stages of hepatitis. The platelet counts were significantly decreased with disease progression (P