Results 11 to 20 of about 20,966 (267)
FREEZE ETCHING OF CELLS WITHOUT CRYOPROTECTANTS [PDF]
The Journal of Cell Biology, 1972 The technique of spray-freeze etching was applied to unicellular organisms. The superior freezing rates obtainable with this method gave excellent cryofixation on Chlorella, Euglena, and spermatozoa without the use of antifreeze agents, and cell damage due to ice crystal formation was never observed.
Plattner, Helmut +3 more
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Improved Cryofixation Applicable to Freeze Etching [PDF]
Proceedings of the National Academy of Sciences, 1971 Freeze etching of solute model systems (e.g., glycerol or ferritin solutions) demonstrates that cryofixation can introduce serious artifacts due to the segregation of the dissolved or dispersed material from the solvent. Since, in principle, this problem can be reduced by increasing the cooling rate, a new technique has been developed which combines ...
L, Bachmann, W W, Schmitt
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MEMBRANE SPLITTING IN FREEZE-ETCHING [PDF]
The Journal of Cell Biology, 1970 The freeze-etch technique was used to observe red blood cell ghosts labeled on both surfaces with covalently bound ferritin. Ferritin molecules were never observed on fracture faces, thus indicating that fracture does not show membrane-surface detail. Subliming away the surrounding ice did expose the ferritin on the membrane surface. These results were
Pedro Pinto da Silva, Daniel Branton
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Cryogenic silicon surface ion trap [PDF]
, 2014 Trapped ions are pre-eminent candidates for building quantum information processors and quantum simulators. They have been used to demonstrate quantum gates and algorithms, quantum error correction, and basic quantum simulations.
Blatt, Rainer +6 more
core +1 more source
CHIMIA, 1976 By penetration of enriched sialoglycoprotein preparations from human red cell membranes into a monolayer of red cell membrane lipids it is possible to form planar lipoprotein complexes.
P. Zahler, Ch. Rothen, R. Flückiger
doaj +1 more source
Mesoscale design of multifunctional 3D graphene networks [PDF]
, 2016 Three-dimensional graphene networks are emerging as a new class of multifunctional constructs with a wide range of potential applications from energy storage to bioelectronics.
Mattevi, C, Sherrell, PC
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Pore-linked filaments in anura spermatocyte nuclei
Anais da Academia Brasileira de Ciências, 2007 Pore-linked filaments were visualized in spreads of anuran spermatocyte nuclei using transmission electron microscope. We used Odontophrynus diplo and tetraploid species having the tetraploid frogs reduced metabolic activities.
Maria Luiza Beçak +1 more
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Stand der Forschung an der photographischen Gelatine
CHIMIA, 1976 It was the aim of the present work to characterize the gelatin by molecular parameters and investigate the elastically active elements of gelatin gels.
Ivan Tomka
doaj +1 more source
A novel surface active polymer oil displacement agent
Petroleum Exploration and Development, 2012 Based on the relationship between the molecule structure of monomers and their performance, two types of polymerizable monomers with low oil/water interfacial tension have been synthesized, which coplymerizes acrylamide to synthesize a novel polymer oil ...
Pingde LIU +3 more
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Journal of Lipid Research, 1989 Intima from aortas of normal Watanabe Heritable Hyperlipidemic (WHHL) and cholesterol-fed (10 days - 3 months) rabbits were examined by ultra-rapid freezing without chemical fixation followed by rotary shadow freeze-etching.
J S Frank, A M Fogelman
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