نتایج جستجو برای: thiolated dna

تعداد نتایج: 507855  

Journal: :Chemical communications 2014
Tae-Jun Kim Gihan Kwon Yong-Tae Kim

We report an anomalous phenomenon in Pt supported on thiolated multi-walled carbon nanotubes (Pt-S-MWNT): oxygen reduction reaction (ORR) activity increases with accelerated durability test (ADT) cycles. Sub-nanometer-sized Pt clusters on S-MWNT were gradually agglomerated to an optimal size with ADT cycles, and finally showed increased ORR activity after the ADT.

Journal: :Chemical communications 2013
Tatsuro Goda Miyuki Tabata Mai Sanjoh Mai Uchimura Yasuhiko Iwasaki Yuji Miyahara

We developed a new building block for a protein- and cell-repellant self-assembled monolayer (SAM) from 2-methacryloyloxyethyl phosphorylcholine (MPC) via a simple Michael-type addition to one mercapto group in alkanedithiol. The thiolated MPC can enable functionalization of a noble metal electrode to minimize noise signal in biosensing.

Journal: :The Biochemical journal 1966
J Stephen R G Gallop H Smith

1. gamma-Globulin concentrates of antisera prepared against ovalbumin and human serum albumin were thiolated and cross-linked to form insoluble polymers. 2. These immunosorbents were of low solubility and of high capacity for homologous antigen. 3. The high specificity of these immunosorbents was demonstrated by fractionation of various binary mixtures of fluorescent ovalbumin, (131)I-labelled ...

Ali akbar Moosavi Movahedi Elaheh Mortazavian Morteza Rafiee-Tehrani Zahra Emam- Djomeh, Zahra Mahdizadeh Barzoki

Insulin therapy has been the best choice for the clinical management of diabetes mellitus. The current insulin therapy is via subcutaneous injection, which often fails to mimic the glucose homeostasis that occurs in normal individuals. Oral delivery is the most convenient administration route. However, insulin cannot be well absorbed orally because of its rapid enzymatic degradation in the gast...

Journal: :Journal of bacteriology 2004
Ramune Leipuviene Qiang Qian Glenn R Björk

tRNA from Salmonella enterica serovar Typhimurium contains five thiolated nucleosides, 2-thiocytidine (s(2)C), 4-thiouridine (s(4)U), 5-methylaminomethyl-2-thiouridine (mnm(5)s(2)U), 5-carboxymethylaminomethyl-2-thiouridine (cmnm(5)s(2)U), and N-6-(4-hydroxyisopentenyl)-2-methylthioadenosine (ms(2)io(6)A). The levels of all of them are significantly reduced in cells with a mutated iscS gene, wh...

2014
Tianxun Gong Douglas Goh Malini Olivo Ken-Tye Yong

In this work, we investigated the cytotoxicity, colloidal stability and optical property of gold nanorods before and after functionalizing them with thiolated PEG and Pluronic triblock copolymer (PEO-PPO-PEO) molecules. The morphology of functionalized gold nanorods was characterized by UV-visible absorption spectroscopy, transmission electron microscopy, and dynamic light scattering. Solution ...

2012
I. Ayensu J. S. Boateng

Annealed and non-annealed freeze-dried wafers from synthesised thiolated-chitosan have been developed and evaluated. Wafers were obtained by freeze-drying aqueous gels of the thiolated polymer incorporating per polymer weight, 10 % each of glycerol as plasticizer, D-mannitol as cryoprotectant and 50% BSA as model protein drug. The formulation was freeze-dried with or without the process of anne...

Journal: :MOJ Bioequivalence & Bioavailability 2017

Journal: :Chemical communications 2014
Kousuke Moriyama Kosuke Minamihata Rie Wakabayashi Masahiro Goto Noriho Kamiya

Horseradish peroxidase-mediated oxidative cross-linking of a thiolated poly(ethylene glycol) is promoted in the absence of exogenous hydrogen peroxide, by adding a small amount of a phenolic compound under physiological conditions. The prepared hydrogel can encapsulate and release living mammalian cells.

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