Development of sedimentation field-flow fractionation-inductively coupled plasma mass-spectrometry for the characterization of environmental colloids

Ranville, James F.; Chittleborough, David J.; Shanks, F. L.; Morrison, Richard J. S.; Harris, Tony; Doss, Faber; Beckett, Ronald

doi:10.1016/s0003-2670(98)00702-8

Cited by 85 publications

(60 citation statements)

References 20 publications

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“…[155][156][157] 52 Characterization methods For a quantitative analysis of the elemental composition, a calibration is needed and recorded by aqueous solutions of the respective elements in known concentrations. For a reliable determination of the element concentration, the standards need to resemble the analyte solution (matrix matching).…”

Section: Inductively Coupled Plasma Optical Emission Spectrometry (Icmentioning

confidence: 99%

“…[158] A number of reports on the use of ICP for the characterization of colloidal systems can be found in literature, mostly for the analysis of sediments on environmental sciences. [155][156][157] Investigations on polymer-based hybrid nanoparticles are rare in literature. However,…”

Section: Introductionmentioning

confidence: 99%

“…While some reports describe the elemental analysis of synthetic, inorganic particles, [161][162][163][164] most of the literature reported for ICP characterization of colloids deals with slurry methods for the analysis of sediments for environmental sciences. [155][156][157] Investigations on polymer-based hybrid nanoparticles are rare in literature. However, Vancaeyzeele et al used ICP-MS as well as ICP-OES for the determination of lanthanide complexes in latex particles but reported lanthanide contents systemically lower than the value expected without finding an explanation for this feature of data.…”

mentioning

confidence: 99%

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Surface Patterning with Colloidal Monolayers

Vogel

2012

Springer Theses

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This thesis focuses on the controlled assembly of monodisperse polymer colloids into ordered two-dimensional arrangements. These assemblies, commonly referred to as colloidal monolayers, are subsequently used as masks for the generation of arrays of complex metal nanostructures on solid substrates.The motivation of the research presented here is twofold. First, monolayer crystallization methods were developed to simplify the assembly of colloids and to produce more complex arrangements of colloids in a precise way. Second, various approaches to colloidal lithography are designed with the aim to include novel features or functions to arrays of metal nanostructures.The air/water interface was exploited for the crystallization of colloidal monolayer architectures as it combines a two-dimensional confinement with a high lateral mobility of the colloids that is beneficial for the creation of high long range order. A direct assembly of colloids is presented that provides a cheap, fast and conceptually simple methodology for the preparation of ordered colloidal monolayers. The produced two-dimensional crystals can be transformed into nonclose-packed architectures by a plasma-induced size reduction step, thus providing valuable masks for more sophisticated lithographic processes. Finally, the controlled co-assembly of binary colloidal crystals with defined stoichiometries on a Langmuir trough is introduced and characterized with respect to accessible configurations and size ratios.Several approaches to lithography are presented that aim at introducing different features to colloidal lithography. First, using metal-complex containing latex particles, the synthesis of which is described as well, symmetric arrays of metal nanoparticles can be created by controlled combustion of the organic material of the colloids. The process does not feature an inherent limit in nanoparticle size and is able to produce complex materials as will be demonstrated for FePt alloy particles. Precise control over both size and spacing of the particle array is presented.Second, two lithographic processes are introduced to create sophisticated nanoparticle dimer units consisting of two crescent shaped nanostructures in close proximity; essentially by using a single colloid as mask to generate two structures simultaneously. Strong coupling processes of the parental plasmon resonances of the two objects are observed that are accompanied by high near-field enhancements. A plasmon hybridization model is elaborated to explain all polarization dependent shifts of the resonance positions. Last, a technique to produce laterally patterned, ultra-flat substrates without surface topographies by embedding gold nanoparticles in a silicon dioxide matrix is applied to construct robust and re-usable sensing architectures and to introduce an approach for the nanoscale patterning of solid supported lipid bilayer membranes.

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Section: Inductively Coupled Plasma Optical Emission Spectrometry (Icmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Surface Patterning with Colloidal Monolayers

Vogel

2012

Springer Theses

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“…The primary requirements for sampling and fractionation of colloids are reliability, lack of bias, and minimum perturbation of their native forms (Baalousha et al 2005). A wide variety of techniques have been applied to fractionate colloids, including split-thin flow fractionation (SPLIFF) (Contado et al 2003), flow field-flow fractionation (FIFFF) (Benedetti et al 2002;Lyvén et al 2003;Baalousha et al 2005Baalousha et al , 2006, sedimentation field-flow fractionation (SdFFF) (Ranville et al 1999;Ran et al 2000), and cross-flow filtration (CFF, also called tangential flow filtration (TFF)) (Guo et al 2000;Hoffmann et al 2000;Wilding et al 2004;Doucet et al 2004Doucet et al , 2005. Among these fractionation techniques cross-flow filtration has perhaps been the most widely used (Powell et al 1996;Stordal et al 1996;Benoit and Rozan 1999;Guéguen et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Size fractionation and characterization of nanocolloidal particles in soils

Zhi-yun

Luo

et al. 2008

Environ Geochem Health

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A protocol was developed to fractionate soil particles down to the nanocolloid scale by combining sieving, sedimentation, centrifugation, and cross-flow filtration (CFF). The validity of the method and the performance of the CFF system were tested by characterizing fractions using laser granulometry, electron microscopy, and chemical analysis. The 0.1-lm-pore-size membrane CFF system effectively retained nanocolloids (\0.1 lm) as shown by laser granulometry and observed directly by transmission electron microscopy. However, environmental scanning electron microscopy images of freeze-dried colloids were very different from their TEM counterparts, suggesting that sample preparation influenced microscopy imaging. Chemical analysis of Cu, Cd, and organic carbon in each fraction showed that the concentrations of these components increased as particle size decreased, indicating colloids and nanocolloids play an important role in retaining trace metals. Particle-size fractionation combined with chemical analysis and electron microscopy can provide insight into the nature and properties of nanocolloids in soil.

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“…While some reports describe the elemental analysis of synthetic, inorganic particles, [36][37][38][39] most of the literature reported for ICP characterization of colloids deals with slurry methods for the analysis of sediments for environmental sciences. [40][41][42] Investigations on polymer-based hybrid nanoparticles are rare in literature. However, Vancaeyzeele et al used ICP-MS as well as ICP-OES for the determination of lanthanide complexes in latex particles but reported lanthanide contents systemically lower than the value expected without finding an explanation for this feature of data.…”

Section: Introductionmentioning

confidence: 99%

Accurate Elemental Analysis of Metal‐Containing Polymer Latexes Using ICP‐Optical Emission Spectrometry

Vogel

Hauser

Schuller

et al. 2010

Macro Chemistry & Physics

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The use of ICP‐OES to determine the metal content of metal‐complex‐containing colloidal dispersions is explored. Colloidal dispersions containing a defined amount of metal complex were produced by miniemulsion polymerization. It was found that simple ICP‐OES measurements yielded apparent metal concentrations significantly below the expected value. To examine the behavior of the colloidal dispersions in the ICP spectrometer, a systematic study on measurement conditions was performed. It was found that the addition of a surfactant to both colloidal dispersions and standards led to measured metal contents close to the theoretical value. Most reliable results were obtained using SDS in concentrations above the cmc.magnified image

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Development of sedimentation field-flow fractionation-inductively coupled plasma mass-spectrometry for the characterization of environmental colloids

Cited by 85 publications

References 20 publications

Surface Patterning with Colloidal Monolayers

Surface Patterning with Colloidal Monolayers

Size fractionation and characterization of nanocolloidal particles in soils

Accurate Elemental Analysis of Metal‐Containing Polymer Latexes Using ICP‐Optical Emission Spectrometry

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