Nine oligosaccharides have been isolated from urine collected from an O(H), Le(a+ b-1, nonsecretor, woman during her pregnancy and subsequent lactation. One of them is a new hexasaccharide denoted lacto-N-neo-difucohexaose II: P-D-Gal-(1~4)-[ru-L-Fuc-(1~3)1-P-D-GlcNAc-(1~3)-P-DGal-(1~4)-[a-L-Fuc-(1~3)1-D-Glc. Seven of the remainder were identified as the milk oligosaccharides lacto-N-difucohexa...

In this work, a new type of optical fiber based chemical sensor, the sub-nanoliter sample cell (SNSC) based gas sensor, is described and compared to existing sensors designs in the literature. This novel SNSC gas sensor is shown to have the capability of gas detection with a cell volume in the sub-nanoliter range. Experimental results for various configurations of the sensor design are presente...

[1] As part of the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA)Cooperative LBA Airborne Regional Experiment (CLAIRE) 2001 campaign in July 2001, separate day and nighttime aerosol samples were collected at a ground-based site in Amazonia, Brazil, in order to examine the composition and temporal variability of the natural ‘‘background’’ aerosol. We used a high-volume sampler to ...

The conversion of deuterium-labeled ceramide to cerebroside has been studied. A mixture of N-(2’+hydroxy [4’,4’,5’,5’-2H4]hexadecanoyl) D-eryfhYO-1,3-dihydroxy-2amino-4-frans-[4,5-*H2]octadecene and N-(2’-D-hydroxy hexadecanoyl) D-eryfhro-l,3-dihydroxy-2-amino-4-frans-[33Hl]octadecene was incubated with mouse brain microsomes and a UDP-galactose regenerating system. Both galactosyl ceramide and...

We describe the isolation and spectroscopic characterization of the heavier phosphorus-containing analogue of isocyanic acid (HPCO), and its isotopologue (DPCO). This fundamental small molecule, which has been postulated to exist in interstellar space, has thus far only been observed at low gas phase concentrations or in inert gas matrices. In this report we describe its synthesis, spectroscopi...

Tripterygium wilfordii (Hook. f.) is a woody vine of the Celastraceae family, and native to China (south of the Yangtze River), Korea, and Japan, is used in the clinic for the treatment of inflammatory and autoimmune diseases, especially rheumatoid arthritis. In this study, we developed a urine metabolomic method by gas chromatographymass spectrometry (GC-MS) to evaluate the effect of Tripteryg...