Results 181 to 190 of about 13,061 (210)

CuO nanoparticles with PAMAM dendrimers

Journal of Coordination Chemistry, 2016
AbstractAn easy pathway to synthesize a variety of cupric oxide (CuO) nanoshapes by a one-step wet chemical method is reported. CuO nanoparticles and nanorods were obtained from CuCl2 in a mixture of water and DMSO in the absence of a base at room temperature.
A. R. Vázquez-Olmos, R. Redón, A. L. Fernández-Osorio, R. Y. Sato-Berrú, J. M. Saniger   +4 more
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Self-assembling of DNA and PAMAM dendrimer

2005 IEEE Engineering in Medicine and Biology 27th Annual Conference, 2005
The self-assembling of DNA and cationic polymers are of interest for their biological applications. In this paper, the interaction of DNA with PAMAM was studied by agarose gel electrophoresis, size and zeta-potential measurements and circular dichroism (CD) spectroscopy. DNA was shown to form stable complexes with PAMAM by gel electrophoresis. The mean
L Z, Zhou, X L, Yang, L, Gan, H B, Xu
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Fluorescence emission from PAMAM and PPI dendrimers

Journal of Colloid and Interface Science, 2007
A strong fluorescence emission from poly(amido amine) (PAMAM) dendrimers with different terminal groups or a poly(propylene imine) (PPI) dendrimer was studied under different conditions by varying experimental parameters such as pH value, aging time, temperature, and concentration.
Dongjun, Wang, Toyoko, Imae, Masao, Miki
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Fluorescence Analysis Of PAMAM Dendrimers

2023
Despite their lack of conjugation, polyamidoamine (PAMAM) dendrimers are intrinsically fluorescent, and this fluorescent is somewhat manipulable through altering the dendrimer's solvent. This level of fluorescence is dependent on a number of the dendrimer's qualities: the pH of the solvent, the mass percent concentration of the dendrimer in solvent ...
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Application of PAMAM dendrimers in optical sensing

The Analyst, 2015
In this review, recent advances have been reported in those PAMAM dendrimer-based optical sensors that are used for the detection of pH, cations, and other analyte.
E, Soršak, J Volmajer, Valh, Š Korent, Urek, A, Lobnik   +3 more
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Antioxidant Action by Gold−PAMAM Dendrimer Nanocomposites

Langmuir, 2004
Gold-dendrimer nanocomposites were prepared in the presence of poly(amidoamine) (PAMAM) dendrimer (generation 3, 3.5, 5, and 5.5) via reduction of HAuCl4 with sodium borohydride. The average particle size of the gold nanoparticles was independent of the dendrimer concentration, ranging between 3.0 and 4.3 nm in diameter. The catalytic activities of the
Kunio, Esumi, Hiroko, Houdatsu, Tomokazu, Yoshimura   +2 more
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Convergent Synthesis of Internally Branched PAMAM Dendrimers

Organic Letters, 2005
[reaction: see text] A series of aliphatic internally branched poly(amido amine) dendrons and dendrimers has been synthesized. The internal branching unit was 1,2-propanediamine and a series of PAMAM-type dendrons of the types AB2, AB4, and AB8 were built.
Pittelkow, Michael, Christensen, Jørn Bolstad   +1 more
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DNA Assisted Self-Assembly of PAMAM Dendrimers

The Journal of Physical Chemistry B, 2014
We report DNA assisted self-assembly of polyamidoamine (PAMAM) dendrimers using all atom Molecular Dynamics (MD) simulations and present a molecular level picture of a DNA-linked PAMAM dendrimer nanocluster, which was first experimentally reported by Choi et al. (Nano Lett., 2004, 4, 391-397). We have used single stranded DNA (ssDNA) to direct the self-
Mandal, Taraknath, Kumar, Mattaparthi Venkata Satish, Maiti, Prabal K   +2 more
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Nanoscale Protein Pores Modified with PAMAM Dendrimers

Journal of the American Chemical Society, 2007
We describe nanoscale protein pores modified with a single hyperbranched dendrimer molecule inside the channel lumen. Sulfhydryl-reactive polyamido amine (PAMAM) dendrimers of generations 2, 3 and 5 were synthesized, chemically characterized, and reacted with engineered cysteine residues in the transmembrane pore alpha-hemolysin.
Hugh, Martin, Helen, Kinns, Nick, Mitchell, Yann, Astier, Rethi, Madathil, Stefan, Howorka   +5 more
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Toxicity of PAMAM dendrimers to Chlamydomonas reinhardtii

Aquatic Toxicology, 2010
In recent decades, a new class of polymeric materials, PAMAM dendrimers, has attracted marked interest owing to their unique nanoscopic architecture and their hopeful perspectives in nanomedicine and therapeutics. However, the potential release of dendrimers into the aquatic environment raises the issue about their toxicity on aquatic organisms.
Anne-Noëlle, Petit, Philippe, Eullaffroy, Timothée, Debenest, François, Gagné   +3 more
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