A5030000755- Dendrimers and Hyperbranched Polymers
- RNA Interference and Gene Delivery
- Chemical Synthesis and Analysis
- Polymer Surface Interaction Studies
- Odor and Emission Control Technologies
- Environmental Chemistry and Analysis
- Advanced Chemical Sensor Technologies
- Mass Spectrometry Techniques and Applications
- Pesticide Residue Analysis and Safety
- Lubricants and Their Additives
- Lanthanide and Transition Metal Complexes
- Fuel Cells and Related Materials
- Indoor Air Quality and Microbial Exposure
- Advanced Polymer Synthesis and Characterization
- Magnetism in coordination complexes
Corning (United States)
2002-2017
Central Michigan University
2002
United States Army
2002
Michigan Molecular Institute (United States)
1994-1999
University of Michigan
1999
Abstract We have developed a new class of magnetic resonance imaging contrast agents with large proton relaxation enhancements and high molecular relaxivities. The reagents are built from the polyamidoamine form Starburs™ dendrimers in which free amines been conjugated to chelator 2‐(4‐isothiocyanatobnenzyl)‐6‐methyl‐diethylenetriaminepenta‐acetic acid. dendrimer gadolinium poly‐chelates enhancement factors, i.e., ratlo relaxivity per Gd(III) ion that Gd(III)‐diethylenetriaminepentaacetic...
Poly(amidoamine) (PAMAM) dendrimer shell reagents possessing either nucleophilic (i.e., primary amines) or electrophilic carboxymethyl esters) functional groups have been covalently assembled around appropriate core to produce partial filled/core-shell tecto(dendrimers). Partial shell-filled products with saturation levels ranging from 28% 66% were obtained. These metastable, remarkably monodispersed assemblies possess functionally differentiated nano-cusps and clefts that exhibit...
Four different types of core−shell tecto-(dendrimer) were imaged by tapping-mode atomic force microscopy (AFM). The molecules based on PAMAM dendrimers, and included G4G3, G5G3, G6G4, G7G5 (the first number represents the generation (G) core, second number, dendrimers in shell). individual could be clearly observed AFM images, which showed that their dimensions increased as a function sum values, i.e., G4G3 < G5G3 G6G4 G7G5. molecular volumes directly obtained from weights then estimated....
Organosiloxanes are prevalent in personal care products (PCPs) due to the desired properties they impart usage and application of such products. However, European Chemical Agency (ECHA) has recently published restriction proposals on amount two cyclic siloxanes, octamethylcyclotetrasiloxane (D4) decamethylcyclotetrasiloxane (D5), allowed wash off as shampoos conditioners which discharged down drain during consumer use. This legislation will require that reliable analytical methods available...