Exciting new directions in the intersection of functionalized sol–gel materials with electrochemistry

Walcarius, Alain; Mandler, Daniel; Cox, James A.; Collinson, Maryanne M.; Lev, Ovadia

doi:10.1039/b504839g

Cited by 272 publications

(198 citation statements)

References 422 publications

(624 reference statements)

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“…Despite numerous sol-gel examples of protein interaction and entrapment (93) and integration with sensors and electrochemistry (96), examples of sol-gel protein imprinting (2D or 3D) are few.…”

Section: Dmentioning

confidence: 99%

From 3D to 2D: A Review of the Molecular Imprinting of Proteins

Turner¹,

Jeans²,

Brain³

et al. 2006

Biotechnol. Prog.

188

217

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Molecular imprinting is a generic technology that allows for the introduction of sites of specific molecular affinity into otherwise homogeneous polymeric matrices. Commonly this technique has been shown to be effective when targeting small molecules of molecular weight <1500, while extending the technique to larger molecules such as proteins has proven difficult. A number of key inherent problems in protein imprinting have been identified, including permanent entrapment, poor mass transfer, denaturation, and heterogeneity in binding pocket affinity, which have been addressed using a variety of approaches. This review focuses on protein imprinting in its various forms, ranging from conventional bulk techniques to novel thin film and monolayer surface imprinting approaches.

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Section: Dmentioning

confidence: 99%

From 3D to 2D: A Review of the Molecular Imprinting of Proteins

Turner¹,

Jeans²,

Brain³

et al. 2006

Biotechnol. Prog.

188

217

View full text Add to dashboard Cite

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“…Coupling nanoparticles with specific polymers to form nanocomposites has been shown to be very effective in producing highly selective and sensitive gas sensors [15][16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

Silver nanoparticle polymer composite based humidity sensor

Power¹,

Betts²,

Cassidy³

2010

Analyst

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Silver nanoparticles were synthesised by a chemical reduction process in order to produce an aqueous colloidal dispersion. The resulting colloids were then characterised by a combination of UV-Vis spectroscopy, dynamic light scattering, XRay diffraction and transmission electron microscopy and the nanoparticles were found to have an average diameter of 20-22nm. The Ag/polymer nanocomposites were then applied to platinum interdigital electrodes as sensor coatings and the capability of the resulting sensor as a humidity detector investigated. With the application of 1V, a current developed which was found to be directly proportional to humidity levels. The sensor gives a reversible, selective and rapid response which is proportional to levels of humidity within the range of 10% RH to 60% RH. An investigation into the mechanism of the sensor's response was conducted and the response was found to correlate well with a second order Langmuir adsorption model.

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“…Unfortunately, lower activities are observed, probably due to diffusion constraints. A notable use of a phosphine linker was reported by Shyu et al, [122] who immobilized Wilkinson's catalyst [Rh(PPh 3 ) 3 Cl] onto phosphinated MCM-41. The supported catalyst showed TOFs three times greater than the homogeneous catalyst, minimal leaching and maintained activity levels after 15 cycles.…”

Section: Tethering Of Metal Complexesmentioning

confidence: 99%

“…The most recent development of this type of catalyst (with respect to immobilization onto a solid mesoporous support) was the use of a phenoxy group, which coordinates with a Mn(salen) complex by displacing a chloride moiety with oxygen. [117] The inorganic host material is functionalized with (para-HOPh)Si(OEt) 3 in the epoxidation of a-methylstyrene and cis-b-methylstyrene compared with the 'free' complex, however, yields were generally poorer. The first paper to illustrate the beneficial effect of confining a chiral catalyst inside a periodic mesoporous host regarding the regioselectivity and ee of the products was published by Johnson et al in 1999.…”

Section: Tethering Of Metal Complexesmentioning

confidence: 99%