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31.
Yaoyu Ren Timo Danner Alexandra Moy Martin Finsterbusch Tanner Hamann Jan Dippell Till Fuchs Marius Müller Ricky Hoft André Weber Larry A. Curtiss Peter Zapol Matthew Klenk Anh T. Ngo Pallab Barai Brandon C. Wood Rongpei Shi Liwen F. Wan Tae Wook Heo Martin Engels Jagjit Nanda Felix H. Richter Arnulf Latz Venkat Srinivasan Jürgen Janek Jeff Sakamoto Eric D. Wachsman Dina Fattakhova-Rohlfing 《Liver Transplantation》2023,13(1):2201939
The garnet-type phase Li7La3Zr2O12 (LLZO) attracts significant attention as an oxide solid electrolyte to enable safe and robust solid-state batteries (SSBs) with potentially high energy density. However, while significant progress has been made in demonstrating compatibility with Li metal, integrating LLZO into composite cathodes remains a challenge. The current perspective focuses on the critical issues that need to be addressed to achieve the ultimate goal of an all-solid-state LLZO-based battery that delivers safety, durability, and pack-level performance characteristics that are unobtainable with state-of-the-art Li-ion batteries. This perspective complements existing reviews of solid/solid interfaces with more emphasis on understanding numerous homo- and heteroionic interfaces in a pure oxide-based SSB and the various phenomena that accompany the evolution of the chemical, electrochemical, structural, morphological, and mechanical properties of those interfaces during processing and operation. Finally, the insights gained from a comprehensive literature survey of LLZO–cathode interfaces are used to guide efforts for the development of LLZO-based SSBs. 相似文献
32.
Anil Amaratunga †Susan E. Leeman ‡Kenneth S. Kosik § Richard E. Fine 《Journal of neurochemistry》1995,64(5):2374-2376
Abstract: We have previously demonstrated that the in vivo vitreal injection of an antisense oligonucleotide directed to the kinesin heavy chain inhibits retinal kinesin synthesis by 82% and concomitantly inhibits rapid transport of total protein into the optic nerve by 70%. These results establish a major role for kinesin in rapid axonal transport in vivo. Recently, the cloning of a family of kinesin-like molecules from the mammalian brain has been reported, and some of these proteins are also expressed in neurons. To assign a specific function to the kinesin heavy chain we inhibited the kinesin synthesis with an antisense kinesin oligonucleotide and assessed the axonal transport into the optic nerve of representative proteins from each of three vesicle classes that contain rapidly transported proteins. Marker proteins used were substance P for peptide-containing synaptic vesicles, the amyloid precursor protein for plasma membrane precursor vesicles, and several integral synaptic vesicle proteins. Our results indicate that the major anterograde motor protein for all three vesicle classes utilizes kinesin heavy chain, although we discuss alternative explanations. 相似文献
33.
Rice seedlings accumulate stainable amounts of the 104 and 90 kDa polypeptides in response to high temperature stress. We have purified and raised highly specific polyclonal antisera against both of these polypeptides. In western blotting experiments, we find that these proteins are accumulated to different extents in rice seedlings subjected to salinity (NaCl), water stress, low-temperature stress and exogenous abscisic acid application. These proteins also accumulated when rice seedlings grown in pots under natural conditions were subjected to water stress by withholding watering. Seedlings of Triticum aestivum, Sorghum bicolor, Pisum sativum, Zea mays, Brassica juncea and mycelium of Neurospora crassa showed accumulation of the immunological homologues of both the 104 and the 90 kDa polypeptides, in response to high-temperature stress. We have earlier shown that shoots of rice seedlings exposed to heat shock accumulate a 110 kDa polypeptide which is an immunological homologue of the yeast HSP 104 (Singla and Grover, Plant Mol Biol 22: 1177–1180, 1993). Employing anti-rice HSP 104 antibodies and anti-yeast HSP 104 antibodies together, we provide evidence that rice HSP 104 is different from the earlier characterized rice HSP 110. 相似文献
34.
Possible mitochondrial involvement in mechanism of cytoplasmic male sterility in maize (Zea mays L.) 总被引:1,自引:0,他引:1
The mechanism of cytoplasmic male sterility was investigated in maize by isolating mitochondria from seedlings and various anther stages and analyzing cytochrome oxidase and succinic dehydrogenase biochemically and electrophoretically. Sterile anthers exhibited a lack of biochemical activity and fewer isozymatic bands for cytochrome oxidase. No apparent differences were detected biochemically or electrophoretically between fertile and sterile anthers for succinate dehydrogenase. 相似文献
35.
Mycelium of Fusarium oxysporum grown on a glucose-containing medium lacked fructosyl transferase and invertase activities. Synthesis of fructosyl t 相似文献
36.
Wayne K. Hoffman Peter Lalley Jean Deb Butler Sheldon Orloff Joseph D. Schulman Anil B. Mukherjee 《In vitro cellular & developmental biology. Plant》1981,17(8):735-740
Summary Using lipochromosomes (phospholipid-entrapped chromosomes) we have transferred the human HGPRT gene into HGPRT deficient mouse
cells (A9) with a frequency of approximately 1×10−5 (Mukherjee et al., Proc. Natl. Acad. Sci. USA 75: 1361–1365; 1978). Two other genes located on the long arm of the human
X-chromosome were also expressed in two independently derived populations of transferents (A9/GT3 and A9/GT4). We report here
the chromosomal and enzymatic composition of human HGPRT-positive clones from each subpopulation analyzed in detail with alkaline
Giemsa-11 staining.
All the clones expressed human PGK and HGPRT, but one (A9/GT4C6) lacked human G6PD. In each of four clones examined microscopically,
a small piece of presumptive human chromatin was visible in the karyotypes of most cells. The chromatin fragment was free
or attached in each cell of an individual clone. When integrated, the human chromosomal fragment in each clone appeared associated
with the centromere of the same telocentric A9 chromosome (No. 6 by Q-banding).
These data suggest that: (a) substantial human chromosomal fragments can be transferred into recipient cells using the lipochromosome
technique; (b) clones from human HGPRT positive A9 transferent subpopulations may or may not possess other human X-linked
markers; (c) the stability of lipochromosomally transferred genes varied from clone to clone and stability is generally poor
in the absence of continuous selection pressure (e.g., HAT); (d) when multiple X-linked human genes were transferred to mouse
cells a cytologically detectable human chromosomal fragment was identified free or attached to a host chromosome; and (e)
integration of transferred human chromosomal material into mouse chromosomes may occur at preferential site(s) in the recipient
genome.
This research was sponsored in part by the Office of Health and Environmental Research U.S. Department of Energy under Contract
W-7405-eng-26 with the Union Carbide Corporation. 相似文献
37.
Germinability of the conidia of B. oryzae, after an efflux of substances — both electrolytes and non-electrolytes — was tested in sterilized solutions of plasmolytica and osmotica, ranging from molarity to 10?12 M. Maximum percent germination was recorded at 10?8 M concentration regardless of the exogenous supplement in the order KCl >D-glucose >Mannitol >NaCl. Germination was very poor or non-existent in other, higher or lower molarities tested except at 10?7 M wíth c. 50% germination. In nature the conidia, though nutrient independent, are subject to leaching and likely to lose viability; hence the possible role of the proper osmoticum, basing on the observed fact, in maintenance of membrane equilibrium and germinability of the leached conidia has been discussed. 相似文献
38.
The multiple sex chromosome system, X1X2Y /X1X1X2X2, in the small Indian mongoose, Herpestes auropunctatus, results from a translocation of a part of Y chromosome to an autosome. It is not possible to distinguish the autosome which harbours the Y chromosome element in the somatic complement. By employing the surface-spreading technique to prophase I meiocytes we have identified the region to which the Y chromosome has been translocated as the short arm of chromosome 9 which is a subtelocentric chromosome. This Y chromosome component lacks heterochromatin and no sex vesicle is organised during meiotic prophase. This suggests to us that Y heterochromatin in mammals may be required for the production of a sex vesicle.We take great pleasure in dedicating this paper to our revered teacher Prof. S.P. Ray-Chaudhuri, who initiated us to the field of Cytogenetics, on the occasion of his 75th birth day 相似文献
39.
K Anil R Abraham G S Kumar P R Sudhakaran P A Kurup 《Indian journal of experimental biology》1992,30(6):518-522
The effect of feeding fish oil on the metabolism of lipoproteins was studied in rats. Rats were fed diet containing 10% sardine or groundnut oil for 6 weeks. There was a significant decrease in the total cholesterol, phospholipids and triglycerides as well as the amount of the lipids associated with VLDL and LDL in serum in fish oil-fed rats. The synthesis and secretion of lipoproteins particularly apoB containing lipoproteins by primary cultures of hepatocytes from these rats were studied by 14(C)-acetate or 3(H)-leucine labelling. Primary cultures of hepatocytes derived from sardine oil-fed rats showed reduced incorporation of 3(H)-leucine into apoB containing lipoproteins secreted into the medium when compared to those fed groundnut oil, indicating a decreased synthesis and secretion of apoB. This was further confirmed by significantly lower incorporation of 14(C)-radioactivity into total and individual lipids of VLDL secreted into the medium, as well as that associated with different lipids in cell layer. The activity of lipoprotein lipase in adipose tissue and aorta was significantly higher in rats fed sardine oil which may cause an increased clearance of triglyceride-rich lipoproteins from circulation. These results indicate that the fish oil exerts hypolipidemic effect particularly by decreasing the synthesis and secretion of VLDL by liver and possibly by an increased clearance of triglyceride-rich lipoproteins from circulation. 相似文献
40.
Production, purification, and characterization of xylanase from a hyperxylanolytic mutant of Aspergillus ochraceus 总被引:2,自引:0,他引:2
Enhancement of the productivity of xylanase and beta-xy-losidase of Aspergillus ochraceus was investigated by multistep mutagenesis. The spores of the wild strain were subjected to UV and N-methyl-N-nitro-N-nitro-soguanidine (NTG). The hyperxylanolytic mutant (NG-13), which showed good clearing on the surface of the xylan-agar plate, secretes xylanase and beta-xylosidase at high levels during growth on commercial xylan and on agricultural wastes. Both liquid and solid state cultures were employed in the study for enzyme production. The xylanase from NG-13 was purified to homogeneity by ammonium sulfate precipitation and gel filtration. This purified enzyme showed a pH optimum of 6.0 and was stable in the range of pH 5 to 10. Prolonged stability of the enzyme was observed at 45 degrees C though its activity was maximal at 50 degrees C. The molecular weight of the enzyme was estimated to be 4.3 x 10(4) by SDS-polyacrylamide gel electrophoresis and 5 x 10(4) by gel filtration on Sephadex G-75. The kinetic data showed that the K(m) and V(max) values for xylan were 1 x 10(-3)M and 19.6 mumol/ min/mg protein, respectively. The enzyme was both more active and thermostable in the presence of K(+)and was inactivated by thiol reagents such as Hg(2+), p-hydroxymercuribenzoate (PHMB), 3', 5'-dithiobis (2'-nitrobenzoic acid) (DTNB), and N-ethylmaleimide (NEM). 相似文献