Results 51 to 60 of about 1,862,039 (280)

Polyamide-rubber blends: micrscopic studies of the deformation zone [PDF]

, 1995
The morphology of injection moulded samples of polyamide—polybutadiene blends (85.15) with an average particle size of 0.3 μm was studied. The samples were fractured in a notched tensile test at crosshead speeds of 10−4 and 1 ms −1 and the structure of ...
Dijkstra, K., Dijkstra, Krijn, Gaymans, R.J., Janik, H., Janik-Jakubowska, H.Z.   +4 more
core   +4 more sources

Redox‐dependent binding and conformational equilibria govern the fluorescence decay of NAD(P)H in living cells

FEBS Letters, EarlyView.
In this work, we reveal how different enzyme binding configurations influence the fluorescence decay of NAD(P)H in live cells using time‐resolved anisotropy imaging and fluorescence lifetime imaging microscopy (FLIM). Mathematical modelling shows that the redox states of the NAD and NADP pools govern these configurations, shaping their fluorescence ...
Thomas S. Blacker, Nimit Mistry, Nicoletta Plotegher, Elizabeth R. Westbrook, Michael D. E. Sewell, John Carroll, Gyorgy Szabadkai, Angus J. Bain, Michael R. Duchen   +8 more
wiley   +1 more source

AgNP-PVP-meglumine antimoniate nanocomposite reduces Leishmania amazonensis infection in macrophages

BMC Microbiology, 2021
Background Leishmaniasis is an infectious disease caused by parasites of the genus Leishmania and presents different clinical manifestations. The adverse effects, immunosuppression and resistant strains associated with this disease necessitate the ...
Ana Patricia Cacua Gélvez, José Antonio Picanço Diniz Junior, Rebecca Thereza Silva Santa Brígida, Ana Paula Drummond Rodrigues   +3 more
doaj   +1 more source

Kikuchi ultrafast nanodiffraction in four-dimensional electron microscopy [PDF]

, 2011
Coherent atomic motions in materials can be revealed using time-resolved X-ray and electron Bragg diffraction. Because of the size of the beam used, typically on the micron scale, the detection of nanoscale propagating waves in extended ...
A. H. Zewail, A. Yurtsever, Bargheer, Barwick, Bressler, Cavalleri, Harb, Lindenberg, Mounier, Muller, Nie, Raman, Sokolowski-Tinten, Yurtsever   +13 more
core   +2 more sources

Neutrophil deficiency increases T cell numbers at the site of tissue injury in mice

FEBS Letters, EarlyView.
In wild‐type mice, injury or acute inflammation induces neutrophil influx followed by macrophage accumulation. Mcl1ΔMyelo (neutrophil‐deficient) mice lack neutrophils, and in response to muscle injury show fewer macrophages and exhibit strikingly elevated T‐cell numbers, primarily non‐conventional “double‐negative” (DN) αβ and γδ T cells.
Hajnalka Halász, Albert Bálint Papp, Lukács Sándor Lesinszki, Attila Mócsai, Tamás Varga, László Nagy, Péter Gogolák   +6 more
wiley   +1 more source

Probing electronic structure in berkelium and californium via an electron microscopy nanosampling approach

Nature Communications, 2021
The obtention and study of actinide elements is challenging due to various factors including their radioactivity and scarcity. Herein, the authors characterize the atomic and electronic structure of Am, Cm, Bk, and Cf compounds using a transmission ...
Alexander Müller, Gauthier J.-P. Deblonde, Peter Ercius, Steven E. Zeltmann, Rebecca J. Abergel, Andrew M. Minor   +5 more
doaj   +1 more source

The cytochrome oxidase defect in ISC‐depleted yeast is caused by impaired iron–sulfur cluster maturation of the mitoribosome assembly factor Rsm22

FEBS Letters, EarlyView.
The yeast mitoribosome assembly factor Rsm22 contains a [4Fe‐4S] cluster that is matured by the mitochondrial iron–sulfur cluster assembly (ISC) machinery. Defects in ISC components result in impaired mitochondrial protein synthesis due to a mitoribosome assembly defect.
Ulrich Mühlenhoff, Dominik Trauth, Weronika Śliwińska, Linda Boss, Roland Lill   +4 more
wiley   +1 more source

Comparison of atomic scale dynamics for the middle and late transition metal nanocatalysts

Nature Communications, 2018
The atomistic behaviour of nanocatalysts still remains largely unknown. Here, the authors reveal and explore reactions of nm-sized clusters of 14 technologically important metals in carbon nano test tubes using time-series imaging by atomically-resolved ...
Kecheng Cao, Thilo Zoberbier, Johannes Biskupek, Akos Botos, Robert L. McSweeney, Abdullah Kurtoglu, Craig T. Stoppiello, Alexander V. Markevich, Elena Besley, Thomas W. Chamberlain, Ute Kaiser, Andrei N. Khlobystov   +11 more
doaj   +1 more source

Postsynaptic protein organization revealed by electron microscopy. [PDF]

, 2019
Neuronal synapses are key devices for transmitting and processing information in the nervous system. Synaptic plasticity, generally regarded as the cellular basis of learning and memory, involves changes of subcellular structures that take place at the ...
Bi, Guo-Qiang, Lau, Pak-Ming, Liu, Yun-Tao, Tao, Chang-Lu, Zhou, Z Hong   +4 more
core  

Orthogonal Matrix Retrieval in Cryo-Electron Microscopy

, 2015
In single particle reconstruction (SPR) from cryo-electron microscopy (cryo-EM), the 3D structure of a molecule needs to be determined from its 2D projection images taken at unknown viewing directions.
Bhamre, Tejal, Singer, Amit, Zhang, Teng
core   +1 more source