Molecular movers and shakers

Ball, Philip

doi:10.1038/35050261

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…[1][2][3] Nanochemistry is not only one method to produce nanostructures, 4,5 but it also deals "with extraordinary size-dependent effects emerging from confined states of all matter". 6 A spatial confinement can influence matter differently on different length scales.…”

Section: Introductionmentioning

confidence: 99%

Influence of Spatial Restrictions on Equilibrium Reactions: A Case Study about the Excimer Formation of Pyrene

2003

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(Chemical) processes under spatial confinements are important for a number of areas, as for instance in catalysis (chemistry) or enzymatic reactions (biology). The role of the spatial restriction parallel to the functional interactions in these systems is hard to trace. Ordered mesoporous silica materials are ideal to provide a multiplicity of parallel, just nanometer-large, well-defined confinements. Therefore, they are ideal to act as model compounds for the examination of spatial confinement effects. In the current contribution, a bimolecular reaction, the formation of excimers of pyrene, is studied under varying confinement conditions in ordered mesoporous silica materials. It will be shown that spatial confinement changes both the excimer formation equilibrium and the kinetics of excimer relaxation.

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Section: Introductionmentioning

confidence: 99%

Influence of Spatial Restrictions on Equilibrium Reactions: A Case Study about the Excimer Formation of Pyrene

2003

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“…The homogeneous gold-catalysed process developed by J.-H. Teles et al at BASF (see above) has been patented (16). 30 25 20 1990 Year In the area of pollution control, some patents (25,26) have been filed claiming use of gold catalysts in automotive emissions. The work carried out by John Marsh and his team at the Anglo American Research Laboratories in South Africa, see above (10), indicates some promise for applications in motor vehicle emission devices: these are most likely in the exhaust treatment for gasoline and diesel cars running over lower temperature ranges and for low light off applications, such as cold start conditions in gasoline engines.…”

Section: Commercial Positionmentioning

confidence: 99%

“…The US Federal Government doubled its expenditure between 2000 and 2001 to $400 million and Japan increased its spending on nanotechnology by 40% between these two years. Several European countries have made nanotechnology a priority (30).…”

Section: Figurementioning

confidence: 99%

Developing new industrial applications for gold: Gold nanotechnology

2002

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“…As a result, these nanomaterials have been used in people's daily life. They can be applied in different applications such as electronics, diagnosis, and energy storage [1,2]. Compared to bulk materials and according to classical physics laws, these nanomaterials have a larger surface area making them highly reactive.…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide as a Substrate for Biosensors: Synthesis and Characterization

Adel

Abdel-Wahab

Abdel-Mawgood

et al. 2021

SSP

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Graphene oxide (GO) is an oxidized nanosheets of graphite with a 2D planar structure. GO could be readily complexed with bio-entities as it possesses many oxygen-containing functionalities on its surface. The preparation process is fast, easy, and cost-effective. It was prepared using modified Hummers’ method in acidic solution as a primary solvent and potassium permanganate as an oxidizing agent. Afterwards, it was successfully characterized by FTIR, UV-visible spectroscopy, as well as XRD and Raman spectroscopy, and finally, SEM analysis. It was observed that the formed GO is mainly composed of carbon and oxygen elements rich in oxygen functional groups. Furthermore, the existence of (001) plane in XRD interprets the complete oxidation of graphite with d-spacing 9 Å. Moreover, Raman spectroscopy displayed the sp3 carbon hybridization, besides, the ID/IG ratio is found to be 0.84, which confirms the disorder between graphene oxide layers. The SEM images also pointed out that graphene oxide sheets were regularly stacked together as flake-like structures. Accordingly, the richness of oxygen-containing functionalities was confirmed. Hence, it is appropriate to be used as a base transducer for biosensing applications.

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Molecular movers and shakers

Cited by 8 publications

References 8 publications

Influence of Spatial Restrictions on Equilibrium Reactions: A Case Study about the Excimer Formation of Pyrene

Influence of Spatial Restrictions on Equilibrium Reactions: A Case Study about the Excimer Formation of Pyrene

Developing new industrial applications for gold: Gold nanotechnology

Graphene Oxide as a Substrate for Biosensors: Synthesis and Characterization

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