Track topics on Twitter Track topics that are important to you
We have developed nanoparticle-modified monoliths in pipette tips for selective and efficient enrichment of phosphopeptides. The 5 μL monolithic beds were prepared by UV-initiated polymerization in 200 μL polypropylene pipette tips and either iron oxide or hydroxyapatite nanoparticles were used for monolith modification. Iron oxide nanoparticles were prepared by a co-precipitation method and stabilized by citrate ions. A stable coating of iron oxide nanoparticles on the pore surface of the monolith was obtained via multivalent electrostatic interactions of citrate ions on the surface of nanoparticles with a quaternary amine functionalized poly(2-hydroxyethyl methacrylate-co-ethylene dimethacrylate) monolith. Hydroxyapatite nanoparticles were incorporated into the poly(2-hydroxyethyl methacrylate-co-ethylene dimethacrylate) monolith by simply admixing them in the polymerization mixture followed by in situ polymerization. The nanoparticle-modified monoliths were compared with commercially available titanium dioxide pipette tips. Performance of the developed and commercially available sorbents was demonstrated with the efficient and selective enrichment of phosphopeptides from peptide mixtures of α-casein and β-casein digests followed by off-line MALDI/MS analysis.
Institute of Analytical Chemistry of the Academy of Sciences of the Czech Republic, v. v. i, 602 00, Brno, Czech Republic, email@example.com.
This article was published in the following journal.
Name: Analytical and bioanalytical chemistry
As one of the most important posttranslational modifications, protein phosphorylation plays an important role in vital movement. However, an efficiency enrichment treatment prior to MS detection is st...
A new type of chiral magnetic nano-particles was prepared via covalently linked magnetic nano-particles (Fe3O4) and heptakis (6-O-triisopropylsilyl)-β-cyclodextrin (6-TIPS-β-CD). The resulting selec...
Phosphorylation is among the most important post-translational modifications of proteins and has numerous regulatory functions across all domains of life. However, phosphorylation is often substoichio...
Mass spectrometry has played a significant role in the identification of unknown phosphoproteins and sites of phosphorylation in biological samples. Analyses of protein phosphorylation, particularly l...
Studies on the marginal fit of monolithic restorations are limited. This study aimed to evaluate the marginal fit among monolithic zirconia, monolithic lithium disilicate, and conventional metal-ceram...
To evaluate the clinical benefits in the patients receiving Viatorr CX over a period of 12 months of structured Follow-up (before TIPS, at TIPS, 1 week after TIPS, at 6 weeks, 4 months, 6 ...
This study is designed to recall all patients who have received a full-arch monolithic zirconia implant supported fixed dental prosthesis in the University of North Carolina (UNC) School o...
TIPS has been used for 20 years, as a means of reducing portal pressure in patients with cirrhosis and portal hypertension related complications. TIPS proved more effective than alternativ...
This pilot study will evaluate a computer-based intervention titled "Trauma-informed Personalized Scripts" (TIPS). The goal of this intervention is to improve patient-provider communicatio...
The aim of our prospective multicenter study was to investigate the prognostic value of the acute and long-term changes of liver stiffness in patients receiving a transjugular intrahepatic...
Food derived from genetically modified organisms (ORGANISMS, GENETICALLY MODIFIED).
Molecule produced in plant leaves that acts like a hormone by inducing flowering in the shoot apical meristem of buds and growing tips.
New immature growth of a plant including stem, leaves, tips of branches, and SEEDLINGS.
A modified nucleoside which is present in the first position of the anticodon of tRNA-tyrosine, tRNA-histidine, tRNA-asparagine and tRNA-aspartic acid of many organisms. It is believed to play a role in the regulatory function of tRNA. Nucleoside Q can be further modified to nucleoside Q*, which has a mannose or galactose moiety linked to position 4 of its cyclopentenediol moiety.
Antibodies from non-human species whose protein sequences have been modified to make them nearly identical with human antibodies. If the constant region and part of the variable region are replaced, they are called humanized. If only the constant region is modified they are called chimeric. INN names for humanized antibodies end in -zumab.