Double-shelled hollow carbon spheres with reduced graphene oxide (RGO) as inner shell and carbon (C) layer as outer shell have been successfully designed and prepared. This tailor-making structure acts as an excellent capsule for encapsulating with ultrafine Pd nanoparticles (Pd NPs), which could effectively prevent Pd NPs from aggregation and leaching. As a result, the as-obtained RGO@Pd@C nan...

Investigating active, stable, and low-cost materials for the oxygen reduction reaction is one of the key challenges in fuel-cell research. In this work, we describe the formation of N-doped carbon shell coated Co@CoO nanoparticles supported on Vulcan XC-72 carbon materials (Co@CoO@N-C/C) based on a simple supramolecular gel-assisted method. The double-shelled Co@CoO@N-C/C core-shell nanoparticl...

How polyamines such as spermidine cooperate with histone to condense and de-condense DNA during transcription has not been clarified. In this work, using the complex of DNA and poly(L-lysine) (PLL) at +/- ratio of 0.5 as a model of nucleosome, we monitored the de-condensation of DNA in the presence of spermidine. As revealed by the results from atomic force microscopy and time-resolved laser li...

Soft-shell crab is considered a gastronomic delicacy, reaching high values in the international market. Under normal conditions, process of hardening crab's exoskeleton after moulting takes approximately two days to complete; however, commercial consistency soft-shell lost just 3 hours. The goal this research was evaluate effects chemical changes water on duration postmoult, specifically at sta...

The atlantid heteropods represent the only predatory, aragonite shelled zooplankton. Atlantid shell production is likely to be sensitive ocean acidification (OA), and yet we know little about their mechanisms of calcification, or response changing chemistry. Here, present first study into calcification gene expression effects short-term OA exposure on juvenile atlantids across three pH scenario...

Few experimental and complementary theoretical studies have investigated high-frequency (>20 MHz) nonlinear responses from polymer-shelled ultrasound contrast agents. Three polymer agents with different shell properties were examined for their single-bubble backscatter when excited with a 40 MHz tone burst. Higher-order harmonic responses were observed for the three agents; however, their occur...

Sucrose gradient sedimentation analysis of rotavirus SA11-infected Ma104 cells revealed the presence of oligomers of VP7, the structural glycoprotein, and NS28, the nonstructural glycoprotein. Cross-linking the proteins, either before or after sucrose gradient centrifugation, stabilizes oligomers, which can be analyzed by nonreducing sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SD...

The room temperature structure of aluminum, copper and gold infinite nanowires is studied. The molecular dynamics simulation method and the same type of the embedded atom potentials made by Voter and coworkers are used. It was found that multi-shelled and various filled metallic nanowires exist depending on the metal and the initial configuration. The results were compared with previous simulat...

Abstract Multi‐shelled ZnSeTe/ZnSe/ZnS quantum dots (QDs) have served as a promising eco‐friendly emitter for blue dot light‐emitting diodes (QLEDs). While extensive studies concentrated on the optimization of shell species and thickness multi‐shelled QDs to raise QLED electroluminescent performance, very few reports focus QD surface states involving ligand defect modulations which are essentia...