Corporate Banner
Satellite Banner
Technology Networks Header
Wednesday, September 17, 2014
 
Register | Sign in
Home Page>Posters

  Posters

Correlation between plasma levels of lutein and oxidized low density lipoproteins: a short human intervention study
Tiziana Bacchetti, Gianna Ferretti

The increase of plasma carotenoids, in particular lutein, after dietary treatment for two weeks is associated with a significant protective effect against lipid peroxidation of plasma lipoproteins.

More Information
Analysis of 10 systemic pesticide residues in various baby foods using liquid chromatography-tandem mass spectrometry
Jae-Han Shim, Angel Yang, A. M. Abd El-Aty, Jong-Hyouk Park, Ayman Goudah, Md. Musfiqur Rahman, Jung-Ah Do

The method developed was sensitive and selective, and detected the analytes below the MRL established by the European Commission and the Korea Food and Drug Administration. The combination of QuEChERS sample preparation and LC-MS/MS analysis provided acceptable quantitative and qualitative results in baby food.

More Information
Residue Analysis of Etoxazole in Red Pepper using Gas Chromatography: Application to Dissipation Pattern
Sung-Woo Kim, Jin Jang, Md. Musfiqur Rahman, A. M. Abd El-Aty, Ah-Young Ko, Jong-Heui Choi, Jae-Han Shim

The dSPE of QuEChERS was replaced with an SPE cartridge, which provided a very clean chromatogram, although a small recovery percentage was obtained. The method fulfilled all validation criteria and was useful for monitoring etoxazole residues in red pepper. It can also be used and optimized for other fruit and vegetable matrices.

More Information
Simultaneous multi-determination and transfer of eight pesticide residues from green tea leaves to infusion using gas chromatography
Sung-Woo Kim, Soon-Kil Cho, A. M. Abd El-Aty, Md. Musfiqur Rahman, Jeong-Heui Choi, Jae-Han Shim

Acetonitrile was used as the extraction solvent with sodium chloride to enhance the partitioning of analytes into the organic phase. Recovery indicated good method accuracy and repeatability, and was within the acceptable range for residue determinations. The mere presence of pesticide residues in tea does not necessarily mean that the tea has become toxic and would pose a health hazard. We revealed that only a negligible or small percentage of pesticides in tea is transferred to the infusion.

More Information
Matrix enhancement effect: A blessing or curse for gas chromatography?
Jae-Han Shim, Md. Musfiqur Rahman, A. M. Abd El-Aty

A sharp, narrow, and sensitive peak is a pre-condition for a sensitive GC analysis. Therefore, a protectant is needed to protect the analyte from any type of distortion for integration and to prevent overestimation. Existing solutions do not overcome these problems completely due to limitations. As the matrix enhancement problem originated from matrix components, its solution should come from similar components.

More Information
Novel Gpr39 Agonists: Correlation Of Binding Affinity Using Label-Free Back-Scattering Interferometry With Potency In Functional Assays
Daniel Brown (1), Niklas Larsson (2), Ola Fjellström (3), Anders Johansson (3), Sara Lundqvist (2), Johan Brengdahl (2), and Richard J. Isaacs (1)

We describe the application of back-scattering interferometry (BSI) to the characterization of small molecule ligand binding to human GPR39 (a GPCR targeted for type-2 diabetes therapy) overexpressed in crude membrane fractions in free solution, including how BSI-derived affinity and functional assay-derived potency correlate for compounds of varying scaffolds

More Information
PRESEPSIN, A SOLUBLE CD14-SUBTYPE, A POSSIBLE NEW BIOMARKER INCREASES IN SEPTIC PATIENTS’ PLASMA FROM PEDIATRIC DEPARTMENT.
Hayato YAMAGUCHI1), Satoshi KIMURA1), Seiji FUKUOKA1), Emiko NAKAMA1), Hideyasu OTO2), Makoto INOUE2), Takashi SOGA2), Shigetaka KITAZAWA2), Yoh UMEDA2)

Increased plasma concentration of soluble CD14-subtype (presepsin) was observed in pediatric patients with bacteremia. Presepsin could be a possible biomarker of sepsis in pediatric patients, however, their reference interval in children could be lower than that of adults. More studies with larger number of samples are required to confirm the result.

More Information
DETERMINATION OF HOMOCYSTEINE THIOLACTONE IN URINE BY FIELD AMPLIFIED SAMPLE INJECTION AND SWEEPING MEKC METHOD WITH UV DETECTION
Paulina Furmaniak, Pawel Kubalczyk, Kamila Borowczyk, Rafal Glowacki

* The procedure does not overload the capillary and has positive effect on the increase in peak hight,
* The method allows about 70-fold increase in method sensitivity,
* The limits of detection and quantification are 0.1 nmol and 0.09 nmol of Hcy-thiolactone in 1 mL of urine, respectively,
* Presented assay can be used for the determination of Hcy-thiolactone in biological samples.

More Information
CAPILLARY ELECTROPHORESIS OF APIGENIN
Paulina Furmaniak, Pawel Kubalczyk, Rafal Glowacki

* Application of an appropriate mode of extraction allowed to use on-line stacking method for the determination of apigenin in plant extracts,
* The low limit of detection was 5 nmol in 1 mL of plant extract,
* Presented procedure allows approximately 20-fold increase of sensitivity,
* Elaborated assay can be useful for the determination of apigenin in biological samples.

More Information
<< 1 2 3 4 5 6 7 >>
Showing Results 11 - 20 of 1020
Scientific News
Blood Cleanser for Sepsis
Dialysis-like ‘biospleen’ quickly filters bacteria, fungi and toxins.
Scientists Discover Neurochemical Imbalance in Schizophrenia
Researchers discovers that neurons from schizophrenia patients secrete higher amounts of three neurotransmitters.
Building Replacement Kidneys in the Lab
Milestone reached in work to build replacement kidneys in the lab.
Intestinal Bacteria Needed for Strong Flu Vaccine Responses in Mice
Study demonstrate a dependency on gut bacteria for strong immune responses to the seasonal flu and inactivated polio vaccines.
Stanford Engineers Aim to Connect the World with Ant-sized Radios
Costing just pennies to make, tiny radios-on-a-chip are designed to serve as controllers or sensors for the 'Internet of Things.'
Diabetes Researchers Find Faster Way to Create Insulin-producing Cells
A new protocol can turn stem cells into reliable, insulin-producing cells in about six weeks.
Genetic Testing for Prostate Cancer
Genetic testing can identify men at six-fold increased risk of prostate cancer.
Novel Method for Portable Detection of ‘Bath Salts’
Despite being outlawed in 2012 in the U.S., the synthetic drugs known as “bath salts” are still readily available in some retail shops, on the Internet and on the streets.
Mass Spectrometry in Your Hand
Electrospray arrays can dramatically downsize systems and costs for onsite chemical analysis and many other applications.
Continuous Flow Production of Metal-Organic Frameworks
An optimal continuous flow chemistry concept for the production of over kilogram per day of MOFs has been devised.
Scroll Up
Scroll Down
Skyscraper Banner
Skyscraper Banner
Follow TechNetcom1 on Twitter
Technology Networks Ltd. on LinkedIn
Go to LabTube.tv