Wireless Sensor Networks (WSNs) had been applied in Internet of Things (IoT) and in Industry 4.0. Since a WSN system contains multiple wireless sensor nodes, it is necessary to develop a low-power and multiband wireless communication system that satisfies the specifications of the Federal Communications Commission (FCC) and the Certification European (CE).
View Article and Find Full Text PDFLipopolysaccharide (LPS) from gram negative bacteria plays an important role in the pathophysiology of neurodegenerative diseases. Many evidences showed that LPS-induced neuroinflammation is related to upregulation of NF-kappaB. Here, we report that long-term treatment of lower dosage LPS mainly causes upregulation of Id2 protein.
View Article and Find Full Text PDFThe translocations of lipopolysaccharide (LPS) from the gut and its effects on bone healing are usually of clinical interest during bone fracture. As already widely studied, Cyclooxygenase-2 (COX-2) is a key enzyme for prostaglandin E2 (PGE(2)) production, which induces the nuclear factor kappa B (NFkappaB) activation and is beneficial to fracture healing. In order to know their roles in skeletal regeneration, mouse MC3T3-E1 osteoblasts were treated with NFkappaB inhibitor BAY 11-7082 and sc791 (a selective COX-2 inhibitor), in the presence of LPS.
View Article and Find Full Text PDFA novel assay of gamma-globulin (gamma-IgG) with a sensitivity at the nanogram level is proposed based on the measurement of enhanced resonance light-scattering (RLS) signals resulting from the interaction of functionalized nano-HgS with gamma-globulin. At pH 5.03, the RLS signals of functionalized nano-HgS were greatly enhanced by gamma-globulin in the region of 200-700nm characterized by the peak around 362nm.
View Article and Find Full Text PDFThe mitochondrial flavoprotein apoptosis-inducing factor (AIF) has proved to be either the main mediator of apoptosis or an anti-apoptotic factor via its putative oxidoreductase and peroxide scavenging activities. We report here that 100 muM hydrogen peroxide (H2O2) induced the proliferation of C2C12 myoblasts and over-expression of AIF simultaneously in vitro. Immunofluorescence showed that the over-expression of AIF was located in the cytoplasm.
View Article and Find Full Text PDFGuang Pu Xue Yu Guang Pu Fen Xi
July 2005
Cuprum-enriched cuprum sulfide nanoparticles (CuS/Cu2+) were prepared. The nanoparticles are water-soluble. They could be used as a resonance light scattering (RLS) probe in the determination of human gamma globulin, which was proved to be a simple, rapid and specific method.
View Article and Find Full Text PDFOrganic fluorescence nanoparticles (1-aminopyrene nanoparticles) were prepared under ultrasonic radiation and used to determine nitrite. Such nanoparticles have a broad, continuous excitation spectrum, but they are also photochemically stable and water-soluble. Nitrite determination was based upon nitrite quenching the fluorescence of the nanoparticles due to a simple diazotization reaction; a simple and specific method.
View Article and Find Full Text PDFGuang Pu Xue Yu Guang Pu Fen Xi
January 2004
In this work, nano-ZnS has been successfully prepared. The nano-ZnS has also been modified with sodium mercaptoacetic acid. The functionalized nanoparticles are water-soluble and biocompatible.
View Article and Find Full Text PDFThis novel method of Pedestrian Tracking using Support Vector (PTSV) proposed for a video surveillance instrument combines the Support Vector Machine (SVM) classifier into an optic-flow based tracker. The traditional method using optical flow tracks objects by minimizing an intensity difference function between successive frames, while PTSV tracks objects by maximizing the SVM classification score. As the SVM classifier for object and non-object is pre-trained, there is need only to classify an image block as object or non-object without having to compare the pixel region of the tracked object in the previous frame.
View Article and Find Full Text PDFThe current standard Unified Modeling Language(UML) could not model framework flexibility and extendability adequately due to lack of appropriate constructs to distinguish framework hot-spots from kernel elements. A new UML profile that may customize UML for framework modeling was presented using the extension mechanisms of UML, providing a group of UML extensions to meet the needs of framework modeling. In this profile, the extended class diagrams and sequence diagrams were defined to straightforwardly identify the hot-spots and describe their instantiation restrictions.
View Article and Find Full Text PDFNanometer-sized L-cysteine-capped ZnS particles have been synthesized and used as a fluorescence probe to investigate the effect of proteins on fluorescent intensity. With Delta lambda=190 nm, maximum and constant synchronous fluorescence enhancement was produced at 267 nm and pH 5.12 in the presence of proteins.
View Article and Find Full Text PDFZhongguo Zhong Xi Yi Jie He Za Zhi
March 2002
Objective: To explore the effect of Xiaolong Tongbi (XLTB), a Chinese herbal preparation, on nitric oxide synthase (NOS) containing nerve and epithelial cell apoptosis.
Methods: NOS containing nerve level of various groups prostate was determined by NADPH histochemical staining and morphological quantitative analysis, and the cell apoptosis rate in rats prostatic epithelium was tested immunohistochemically with TUNEL method.
Results: After 3 weeks treatment with high dose XLTB, the length density of NOS contained nerves in prostate tissue of rats was 0.
ZnS nanoparticles have been prepared and modified with sodium thioglycolate. The functionalized nanoparticles are water-soluble. They were used as fluorescence probes in the determination of proteins, which was proved to be a simple, rapid and specific method.
View Article and Find Full Text PDFNanometer-sized fluorescent particles were successfully synthesized. The nanoparticles have a narrow, tunable, symmetric emission spectrum and a broad, continuous excitation spectrum. They are also photochemically stable.
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