| 1. |
- Carlmark, Anna, et al.
(författare)
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New methodologies in the construction of dendritic materials
- 2009
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Ingår i: Chemical Society Reviews. - : Royal Society of Chemistry (RSC). - 0306-0012 .- 1460-4744. ; 38:2, s. 352-362
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Forskningsöversikt (refereegranskat)abstract
- Dendritic polymers are highly branched polymer structures, with complex, secondary architectures and well-defined spatial location of functional groups. Due to their unique physical and chemical features, applications in areas such as targeted drug-delivery, macromolecular carriers, catalysis, sensors, light harvesting, surface engineering and biomimetic materials have been proposed. However, only a few dendritic materials have been exploited commercially due to time consuming syntheses and the generation of significant waste/presence of unreacted starting materials. This tutorial review describes traditional synthesis of dendritic materials as well as recent advances in synthetic strategies, for example the use of Click chemistry, as a tool to efficiently obtain complex, functional dendritic structures.
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| 2. |
- Fors, Yvonne, et al.
(författare)
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Sulfur and Iron in Shipwrecks Create Conservation Concerns
- 2006
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Ingår i: Chemical Society Reviews. - : Royal Society of Chemistry (RSC). - 0306-0012 .- 1460-4744. ; 35:5, s. 399-415
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Tidskriftsartikel (refereegranskat)abstract
- Synchrotron-based sulfur X-ray absorption spectroscopy reveals considerable accumulation of organosulfur (e.g. thiols), pyrite and iron(II) sulfides in marine-archaeological wood preserved in seawater, e.g. for historical shipwrecks such as the Vasa and Mary Rose. In the museum, oxidation of the sulfur compounds in the presence of iron ions may cause severe acidity in the moist wood. This tutorial review discusses developments of conservation methods to remove acid and iron, and how to analyse and stabilise sulfur compounds in the wood.
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| 3. |
- Gagliardi, Laura, et al.
(författare)
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Multiconfigurational quantum chemical methods for molecular systems containing actinides
- 2007
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Ingår i: Chemical Society Reviews. - : Royal Society of Chemistry (RSC). - 0306-0012 .- 1460-4744. ; 36:6, s. 893-903
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Forskningsöversikt (refereegranskat)abstract
- Recent advances in computational actinide chemistry are reported in this tutorial review. Muticonfigurational quantum chemical methods have been employed to study the gas phase spectroscopy of small actinide molecules. Examples of actinide compounds studied in solution are also presented. Finally the multiple bond in the diuranium molecule and other diactinide compounds is described.
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| 4. |
- Laurell, Thomas, et al.
(författare)
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Chip integrated strategies for acoustic separation and manipulation of cells and particles
- 2007
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Ingår i: Chemical Society Reviews. - : Royal Society of Chemistry (RSC). - 0306-0012. ; 36:3, s. 492-506
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Forskningsöversikt (refereegranskat)abstract
- Acoustic standing wave technology combined with microtechnology opens up new areas for the development of advanced particle and cell separating microfluidic systems. This tutorial review outlines the fundamental work performed on continuous flow acoustic standing wave separation of particles in macro scale systems. The transition to the microchip format is further surveyed, where both fabrication and design issues are discussed. The acoustic technology offers attractive features, such as reasonable throughput and ability to separate particles in a size domain of about tenths of micrometers to tens of micrometers. Examples of different particle separation modes enabled in microfluidic chips, utilizing standing wave technology, are described along a discussion of several potential applications in life science research and in the medical clinic. Chip integrated acoustic standing wave separation technology is still in its infancy and it can be anticipated that new laboratory standards very well may emerge from the current research.
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| 5. |
- Linares, Mathieu, et al.
(författare)
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Expression of chirality in molecular layers at surfaces : Insights from modelling
- 2009
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Ingår i: Chemical Society Reviews. - : Royal Society of Chemistry (RSC). - 0306-0012 .- 1460-4744. ; 38:3, s. 806-816
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Tidskriftsartikel (refereegranskat)abstract
- This tutorial review illustrates how modelling can be used to understand the structure and properties of chiral surfaces formed by adsorption of molecular layers. The two major theoretical approaches for such modelling (Density Functional Theory and classical force-field methods) are briefly described and compared. A few examples of their use are given, focussing on: (i) the expression of chirality at the local and global scale in layers of chiral molecules, (ii) the appearance of chirality in layers of achiral molecules on achiral surfaces, and (iii) the molecular organisation in layers formed from racemic mixtures.
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| 6. |
- Samec, Joseph S. M., et al.
(författare)
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Mechanistic aspects of transition metal-catalyzed hydrogen transfer reactions.
- 2006
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Ingår i: Chemical Society Reviews. - : Royal Society of Chemistry (RSC). - 0306-0012 .- 1460-4744. ; 35:3, s. 237-248
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Tidskriftsartikel (refereegranskat)abstract
- A review. In this tutorial review recent mechanistic studies on transition metal-catalyzed hydrogen transfer reactions are discussed. A common feature of these reactions is that they involve metal hydrides, which may be monohydrides or dihydrides. An important question is whether the substrate coordinates to the metal (inner-sphere hydrogen transfer) or if there is a direct concerted transfer of hydrogen from the metal to substrate (outer-sphere hydrogen transfer). Both exptl. and theor. studies are reviewed. [on SciFinder(R)]
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