AFM imaging of the transcriptionally active chromatin in mammalian cells' nuclei

Bairamukov, V. Yu.; Filatov, M. V.; Kovalev, R. A.; Fedorova, Natalia D.; Пантина, Р. А.; Ankudinov, A. V.; Iashina, E. G.; Grigoriev, S. V.; Varfolomeeva, E. Yu.

doi:10.1016/j.bbagen.2022.130234

Cited by 5 publications

(1 citation statement)

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“… 37 The Atomic Force Micrograph (AFM) showed fibrous inter‐knotted morphology of L4 organogel resembling to that of collagen at a concentration of 10 −6 M (Figure 3a). 38 The primary fiber bundles of diameter 3.24 μm, composed of 3 secondary bundles each of diameter 0.64 μm, are further composed of 14 tertiary bundles of diameter 42.98 nm. These tertiary bundles composed of 43–53 fibers each of each of diameter 1.85 nm and irregular fiber length.…”

Section: Materials Characterizationmentioning

confidence: 99%

Gemini surfactant‐stabilized Pd nanoparticles: Synthesis, characterization, and catalytic application in the reduction and reductive acetylation in the water solvent

Gupta,

Srivastava,

V.S. Ranganath

2023

Applied Organom Chemis

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A series of Gemini surfactants (GSs) were prepared by reacting alkyl bromides with N,N,N′,N′‐tetramethyl ethylenediamine. Various alkyl bromides used in for the preparation of GSs are 1,3‐dibromo ethane, 1,3‐dibromoethane, 1‐Bromohexane, 1‐Bromooctane, 1‐Bromooctadecane and 1‐Bromooctadodecane. Different solvents and temperatures were investigated for the formation of gels of prepared GSs. Among all, 1‐Bromooctane, 1‐Bromooctadecane‐derived GSs formed organogels. Thus, synthesized long‐chain organogels have been used to stabilize Pd NPs. The Pd NPs formation initially confirmed through Ultraviolet‐visible, Scanning Electron Microscopy, and Atomic Force Micrograph studies. Later Fourier Tansform Infra Red, Thermo Gravimetric Analysis, and Zeta potential studies were also carried out to understand their properties extensively. The Pd NPs stabilized by GSs have been identified as a potential catalyst in the reductive N‐acetylation of nitroaromatics at room temperature. The N‐acetylated products were obtained in good yields in an aqueous medium. In addition, the potentiality of our catalyst has been also evaluated in the reduction of nitroaromatics in an aqueous medium, which is a green protocol. Further, the semi‐empirical geometry optimizations of active GS gel confirmed the dihedral angle of 59° in between the two octyl moieties calculated from computational studies. The rheological properties such as amplitude sweeping, viscosity shear profile of the gel have also been studied.

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Section: Materials Characterizationmentioning

confidence: 99%