Search

Your search keyword '"Lu, Jiangrong"' showing total 8 results
Start Over Author "Lu, Jiangrong"
8 results on '"Lu, Jiangrong"'

5. Preparation and characterization of fibrous sepiolite modified silane coupling agent/fluororubber nanocomposite

Author

Wang Mengyi, Wang Yufeng, Han Feixue, Lu Jiangrong, and Yan Puxuan

Subjects
Materials science, Nanocomposite, Polymers and Plastics, Scanning electron microscope, Sepiolite, Composite number, Infrared spectroscopy, 02 engineering and technology, General Chemistry, Crystal structure, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Ultimate tensile strength, Materials Chemistry, Ceramics and Composites, Composite material, 0210 nano-technology, Curing (chemistry)
Abstract

Fibrous sepiolite(Sep)/fluororubber (FKM) composite was prepared by co-mixing and heat molding. Fibrous aggregation of acid sepiolite(aSep) was prepared by acid exfoliation of mineral sepiolite, and then organic sepiolite(oSep) was prepared by coupling agent modification of aSep. The crystal structure, chemical composition and morphology of different aggregations were mensurated using X-ray diffraction, infrared spectrometer, and scanning electron microscope. The curing histories and mechanical properties of composites were analyzed for two kinds of fibrous sepiolites. The results indicated that apparent diameters of aSep and oSep were respectively 100–200 nm and 60–100 nm. The apparent crosslinking densities, curing velocities, and tensile strengths of FKM composites were increased by the addition of sepiolite, the curing velocities of oSep/FKM were lower than those of aSep/FKM, and the tensile strengths of oSep/FKM were upper than those of aSep/FKM. POLYM. COMPOS., 2015. © 2015 Society of Plastics Engineers

Published
2015

7. Preparation and characterization of fibrous sepiolite modified silane coupling agent/fluororubber nanocomposite.

Author

Yan, Puxuan, Wang, Yufeng, Wang, Mengyi, Lu, Jiangrong, and Han, Feixue

Subjects
POLYMERIC nanocomposites, MEERSCHAUM, SILANE, RUBBER, X-ray diffraction, COUPLING agents (Chemistry), SCANNING electron microscopy
Abstract

Fibrous sepiolite(Sep)/fluororubber (FKM) composite was prepared by co-mixing and heat molding. Fibrous aggregation of acid sepiolite(aSep) was prepared by acid exfoliation of mineral sepiolite, and then organic sepiolite(oSep) was prepared by coupling agent modification of aSep. The crystal structure, chemical composition and morphology of different aggregations were mensurated using X-ray diffraction, infrared spectrometer, and scanning electron microscope. The curing histories and mechanical properties of composites were analyzed for two kinds of fibrous sepiolites. The results indicated that apparent diameters of aSep and oSep were respectively 100-200 nm and 60-100 nm. The apparent crosslinking densities, curing velocities, and tensile strengths of FKM composites were increased by the addition of sepiolite, the curing velocities of oSep/FKM were lower than those of aSep/FKM, and the tensile strengths of oSep/FKM were upper than those of aSep/FKM. POLYM. COMPOS., 38:E208-E213, 2017. © 2015 Society of Plastics Engineers [ABSTRACT FROM AUTHOR]

Published
2017
Full Text
View/download PDF

8. Characterization of Two Novel Oncogenic Pathways Collaborating With Loss of p53 or Activated Neu in Mouse Models of Breast Cancer

Author

HARVARD MEDICAL SCHOOL BOSTON MA, Lu, Jiangrong, Leder, Philip, HARVARD MEDICAL SCHOOL BOSTON MA, Lu, Jiangrong, and Leder, Philip

Abstract

Cancer is a complex multi step disease and progresses through successive accumulation of genetic mutations. Loss of tumor suppressor gene p53 and activation of oncogene Neu/ErbB2 are among the most frequent genetic alterations in human breast cancer. We performed a retroviral insertional mutagenesis screen to identify gene 5 that my contribute to mammary tumor formation in conjunction with deregulated p53 or Neu. Multiple proviral insertions form independent tumors were identified to be located within introns of the F-Box gene Fbw4, suggesting that the structural alteration at this locus may provide selective growth advantage. The viral integrations result in marked overexpression of a novel Fbw4 short isoform, which is also spontaneously enriched in several mouse and human breast cancer cell lines and thus appears to be associated with tumor formation. Overexpression of this short isoform in the normal' mouse mammary epithelial cell line NMuMg enable these cells to grow in soft agar. Taken together, these findings suggest that Fbw4 in a novel cancer- relevant gene. We propose a mechanism related to Fbw4's oncogenic properties.

Published
2003

Catalog

Books, media, physical & digital resources
See catalog results