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METHOD DEVELOPMENT FOR THE SIMULTANEOUS DETERMINATION OF METHYLMERCURY AND INORGANIC MERCURY IN SEAFOOD
Sergio Carneado, Ariane V. Zmozinski, Carmen Ibáñez-Palomino, Àngels Sahuquillo, José Fermín López-Sánchez, Márcia M. da Silva

This work reports the method development for the simultaneous determination of methylmercury (MeHg+) and inorganic mercury (iHg) species in seafood. The study focused on the extraction and quantification of MeHg+ by liquid chromatography coupled to on-line UV irradiation and cold vapour atomic fluorescence spectroscopy (LC-UV-HG-AFS), using HCl 4 mol L-1 as extractant agent.

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Relationships between Water Quality Constituents in the Delta and the Influence of Different Sources of Water
Richard A. Denton and Paul Hutton

Analysis of detailed grab sample data from San Francisco Bay and Delta and development of regression relationships between EC, TDS and water quality constituents such as chloride, bromide, sodium, calcium, sulfate, alkalinity and hardness. The relationships in the interior Delta vary depending upon the percentage contributions from seawater, agricultural drainage and freshwater inflows.

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Flow Enhancement and Dynamic of Microfluidic Base Biosensor
Esmail Abdullah Mohammed Basheer, Hayder A.Abdul Bari

The design of new biosesnor base on microfluidic system is presented. The design is consist of two chips, Microchannels chip and electrodes chip. By varying the size and optimizing the microchannels and electrode, the sensitivity of the biosensor will increase.

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Microextraction techniques combined with X-ray fluorescence spectrometry for determination of different metal ions in water
Karina Kocot (a), Beata Zawisza (a), Eva Marguí (b), Ignasi Queralt (c), Rafal Sitko (a)

In present work new preconcentration procedures combining microextraction techniques and X-ray fluorescence spectroscopy were developed. Proposed methodologies are promising tools for multielemental analysis enabling detection of natural pollutants in different water samples.

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Analysis of Low Levels of Bisphenol A (BPA) in Canned Broths
Ken G. Espenschied, Michael Ye, Olga I. Shimelis, and Christine Dumas

Bisphenol A (BPA) is a primary monomer used in the manufacture of many plastics and epoxies. Some of these plastics are used as beverage containers and as liners and sealants for metal food containers. Because of BPA’s potential to act as an endocrine disrupter at low concentrations in humans, regulations have been enacted regarding BPA concentrations in food and beverages sold for human consumption.

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Fast and Efficient Analysis of Polynuclear Aromatic Hydrocarbons in Edible Oils Using Dual-Layer SPE
Christine Dumas and Katherine Stenerson

A new dual-layer cartridge for the efficient extraction of PAHs from edible oils

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Total Phenolics and Beta-1,3-Glucans Extracted from Medicinal Mushrooms (Ganoderma lucidum, Inonotus obliquus, and Phellinus linteus)
Jaecheol Kim, Kiuk Lee, Keum Taek Hwang(1), Gichun Yoo(2)

This study was to analyze the total phenolics, beta-glucans, and beta-1,3-glucans in water extracts of three medicinal mushrooms (Ganoderma lucidum(GL), Inonotus obliquus(IO), and Phellinus linteus(PL)) under different extraction conditions.

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HOMOGENEOUS ADCs BEARING TWO DIFFERENT PAYLOADS SHOW STRONG SYNERGY IN TUMOR KILLING
Lisha Allen, Yi Mi, Muhammad Abbas, Wolfgang Richter, and Sean Hu

We presented a one-pot reaction to prepare site-specific ADCs using available mABs on hand without re-engineering. We have identified a novel non-cleavable linker, which increases not only ADC stability, but also potency. We also demonstrate synergy in cancer cell killing of hybrid ADC loaded with two different toxins

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Effect of exposure to stress conditions on propidium monoazide (PMA) - qPCR based enumeration of Campylobacter in broiler carcass rinses
A. Duarte1,2*, N. Botteldoorn2 ,W. Coucke2, S. Denayer2, K. Dierick2, and M. Uyttendaele1

Evaluation and comparison of a developed PMA-qPCR Campylobacter enumeration method with the reference method, after exposure of the broiler rinse artificially contaminated with the bacteria to stress conditions.

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Showing Results 31 - 40 of 1119
Scientific News
Novel Organoid Matrix Enables Long-Term Culture of Human Hepatocytes
Organoid growth matrix to enable long-term culture of genome-stable bipotent stem cells from adult human liver.
New Metabolic Biomarkers Predict Future Cardiovascular Diseases
Scientists of the Helmholtz Zentrum München contributed to the analysis of the biomarkers.
Study Links Deficiency of Cellular Housekeeping Gene with Aggressive Forms of Breast Cancer
Research team studies genes involved in the autophagy process and their roles in cancer, aging, infections, and neurodegenerative diseases.
New Method For Identifying Most Aggressive Childhood Cancers
A research group at Lund University in Sweden has found a new way to identify the most malignant tumours in children. The method involves studying genetic ‘micro-variation’, rather than the presence of individual mutations.
Powerful Tool Promises To Change The Way Scientists View Proteins
Aquaria, a publicly available web resource that streamlines and simplifies the process of gleaning insight from 3D protein structures, is fast, easy-to-use and contains twice as many models as all other similar resources combined.
Rapid Test Kit Detects Dengue Antibodies from Saliva
IBN’s MedTech innovation simplifies diagnosis of infectious diseases.
“Unprecedented Sensitivity and Specificity” in Ovarian Cancer
Study of the use of the Parsortix system as a clinical application in the detection and treatment of ovarian cancer patients.
Nanoparticle Lights Up Artery-Clogging Plaque
A new imaging agent that may light up dangerous plaque in arteries is to be evaluated in a clinical trial.
Study Uncovers Range of Molecular Alterations in Head and Neck Cancers
TCGA tumor genome sequencing analyses offer new insights into the effects of HPV and smoking, and find genomic similarities with other cancers.
Beating The Clock: New Treatment For Rabies Developed
University of Georgia researchers have developed a new treatment for rabies.
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