Results 91 to 100 of about 913,823 (355)

Selective separation of phenolic compound using molecular imprinting technique for solid phase extraction [PDF]

, 2010
The objectives of this research are to study the performance of molecular imprinted polymer(MIP)in solid phase extraction (SPE) process and to determine the formulation for preparing of MIP particle and also to analyze the absorbance differences between ...
Nadiah, Zainuldin
core  

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

Сорбционное концентрирование следовых количеств хлорамфеникола на поверхности силикагеля, модифицированного октадецильнимы группами [PDF]

, 2016
Проблематика. Хлорамфенікол (ХЛ) – антибіотик широкого спектра дії, використовується у різних галузях ветеринарії і може накопичуватись у продуктах харчування тваринного походження.
Ivanova, O. M., Sikolenko, T. V., Иванова, О. М., Сиколенко, Т. В., Сіколенко, Таїсія Володимирівна, Іванова, Ольга Михайлівна   +5 more
core   +1 more source

E2A selectively regulates TGF‐β–induced apoptosis in KRAS‐mutant non‐small cell lung cancer

Molecular Oncology, EarlyView.
Ability to induce apoptosis by TGF‐β is frequently lost in advanced lung adenocarcinoma despite intact TGF‐β signaling. We identify E2A as a mutant KRAS–dependent mediator of resistance to TGF‐β–induced apoptosis. TGF‐β induces E2A via SMAD3 in mutant KRAS cells, and E2A silencing restores apoptosis and enhances radiation response in cell lines ...
Sergei Chuikov, Shiva Krishna Katkam, Zhefan Wang, Venkateshwar G. Keshamouni   +3 more
wiley   +1 more source

Novel Zeolitic Imidazolate Frameworks Based on Magnetic Multiwalled Carbon Nanotubes for Magnetic Solid-Phase Extraction of Organochlorine Pesticides from Agricultural Irrigation Water Samples

Applied Sciences, 2018
Magnetic solid-phase extraction is an effective and convenient sample pretreatment technique that has received considerable interest in recent years. A lot of research indicated that magnetic nanocarbon-material-based composites have good application ...
Xiaodong Huang, Guangyang Liu, Donghui Xu, Xiaomin Xu, Lingyun Li, Shuning Zheng, Huan Lin, Haixiang Gao   +7 more
doaj   +1 more source

Solid Phase Extraction of Pesticides with Determination by Gas Chromatography [PDF]

, 2002
A simple, rapid, and effective method for the extraction of fifteen organochlorine and organophosphorus pesticides based on the use of solid phase Bond Elut C-18 cartridges was studied as an alternative method to those based on extraction with organic ...
Bhuiyan, Anwar A., Brotherton, Harry O.
core   +1 more source

Recent trends in analytical methods to determine new psychoactive substances in hair [PDF]

, 2017
New Psychoactive Substances (NPS) belong to several chemical classes, including phenethylamines, piperazines, synthetic cathinones and synthetic cannabinoids.
García Algar, Oscar, KYRIAKOU, CHRYSTALLA, MARINELLI, Enrico, Pellegrini, Manuela, ZAAMI, Simona   +4 more
core   +1 more source

Proteasome inhibitor, ixazomib prevents topoisomerase‐I degradation and reverses irinotecan resistance in colorectal cancer

Molecular Oncology, EarlyView.
Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata, Koji Ando, Hirofumi Hasuda, Koshi Mimori, Elizabeth C. Unan, Siddhartha Pulukuri, Aahana Tiku, Allison Berger, Eiji Oki, Ajit Bharti, Tomoharu Yoshizumi   +10 more
wiley   +1 more source

Enhancing Analytical Potential for Ultratrace Analysis of Inorganic Oxyanions Using Extraction Procedures with Layered Double Hydroxides

Toxics
This article provides an overview of the use of layered double hydroxides (LDHs) as effective sorbents in various extraction methods, including column-based solid-phase extraction (SPE), dispersive solid-phase extraction (DSPE), and magnetic solid-phase ...
Ingrid Hagarová, Vasil Andruch
doaj   +1 more source

New trends in sample preparation methods for the determination of flavour compound in beers.

Kvasný průmysl, 2002
The  most popular  sample preparation  methods for  the determination  of  flavour  compounds  in  beers are usually based  on  steam  distillation  or liquid-liquid extraction.
T. HORÁK, J. ČULÍK, M. JURKOVÁ, P. ČEJKA, V. KELLNER   +4 more
doaj   +1 more source