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Progetti 2011

 
 
Raman -PERKIN ELMER

Raman -PERKIN ELMER

Raman is both qualitative and quantitative. As previously mentioned, Raman spectra are unique molecular “fingerprints”. Spectral library searching can be conducted to allow qualitative analysis. Quantitative analysis of a mixture is typically performed by measuring the relative intensities of bands that are directly proportional to the relative concentrations of the [...]

 
Acque di transizione: ricerca, gestione e comunità locali (2012)

Acque di transizione: ricerca, gestione e comunità locali (2012)

The challenge of proteomics, the next frontier of biological and biomedical research, is essentially based on archetypal “Analytical Chemistry” strategies: separation and qualitative (identification) and quantitative analysis. Identification of the proteome expressed in different tissues of mussels is important to understand many different biological, physiological and ecological aspects that may [...]

 
Proteomic evaluation of milk for breast milk, Acta pediatrica

Proteomic evaluation of milk for breast milk, Acta pediatrica

As milk represents the main source of nutrition for infants, the question of an effective human milk substitute becomes mandatory when a formula-fed baby is allergic to cows’ milk proteins. In this case, formulas containing extensively hydrolysed milk proteins should be preferred, but even such a formula may cause allergic [...]

 
FTIR nanobiosensors for Escherichia coli detection (Mura, Greppi et al., …2012)

FTIR nanobiosensors for Escherichia coli detection (Mura, Greppi et al., …2012)

Infections due to enterohaemorrhagic E. coli (Escherichia coli) have a low incidence but can have severe and sometimes fatal,health consequences, and thus represent some of the most serious diseases due to the contamination of water and food. New, fast and simple devices that monitor these pathogens are necessary to improve [...]

 
Nano-patterned SERS substrate

Nano-patterned SERS substrate

We have illustrated the fabrication of nano-structures as a surface enhanced Raman scattering (SERS) substrate using electro-plating and electron-beam lithography techniques to obtain an array of gold nanograin-aggregate structures of diameter ranging between 80 and 100 nm with interstitial gap of 10–30 nm. The nanostructure based SERS substrate permits us [...]

 
Food matrix by magnetic SERS nanoprobes

Food matrix by magnetic SERS nanoprobes

A rapid and sensitive method was developed here for separation and detection of multiple pathogens in food matrix by magnetic surface-enhanced Raman scattering (SERS) nanoprobes. Silica-coated magnetic probes (MNPs@SiO2) of ∼100 nm in diameter were first prepared via the reverse microemulsion method using cetyltrimethylammonium bromide as a surfactant and tetraethyl [...]

 
Near-Infrared Spectroscopy for Analysis of Agricultural Material

Near-Infrared Spectroscopy for Analysis of Agricultural Material

Near-Infrared Spectroscopy for Analysis of Agricultural Material Eric C. Newgard Near-infrared reflectance spectroscopy is a technique that is becoming increasingly utilized in the food industry for gathering quantitative and qualitative information regarding products. NIR spectroscopy is usually faster than other analytical techniques, is nondestructive and often requires no sample preparation. [...]

 
Nano-optics from sensing to waveguiding

Nano-optics from sensing to waveguiding

Nano-optics from sensing to waveguiding The design and realization of metallic nanostructures with tunable plasmon resonances has been greatly advanced by combining a wealth of nanofabrication techniques with advances in computational electromagnetic design. Plasmonics — a rapidly emerging subdiscipline of nanophotonics — is aimed at exploiting both localized and propagating [...]

 
La fotonica

La fotonica

Since the discovery of transmission in optical fibers in 1970 optical communication has boomed. One of the first commercial steps towards an all-optical network was taken in 1988 when the first optical fiber was installed between Europe and America. Since then the telecommunication industry has been through a major economic [...]

 
Raman and sers for detection of contaminated food products

Raman and sers for detection of contaminated food products

Development of sensors for detection of contaminated food products is important to ensure safety of the community. This paper focuses on detection of a compound, acetone associated with pathogen contamination and spoilage of beef in packaged condition. Surface Enhanced Raman Spectroscopy (SERS) technique was used to develop an integrated sensing [...]