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| 1 | Diagnostic techniques for photonic materials based on Raman and Brillouin spectroscopies显示文摘The elastic and vibrational properties of a material,bulk or planar waveguide,are studied by Brillouin and Raman spectroscopy to follow the process of nanocrystals growth in glass-ceramics. The nanoparticles cause the appearance,in the low fre-quency Raman spectrum,of characteristic peaks,whose position depends on the size of the crystals. At the same time,sharp crystal peaks,due to optical phonons,appear in the Raman spectra,allowing the determination of the nucleated phase,and a frequency shift of the Brillouin peaks is observed. | M. Mattarelli S.Caponi A. Chiappini M. Montagna E. Moser F. Rossi C.Tosello C. Armellini A. Chiasera M. Ferrari Y. Jestin G. Nunzi Conti S. Pelli G.C. Righini | 2007 | Optoelectronics Letters2007，3，3： | 11 |
| 2 | Non-contact mechanical and chemical analysis of single living cells by microspectroscopic techniques显示文摘Innovative label-free microspectroscopy,which can simultaneously collect Brillouin and Raman signals,is used to characterize the viscoelastic properties and chemical composition of living cells with sub-micrometric resolution.The unprecedented statistical accuracy of the data combined with the high-frequency resolution and the high contrast of the recently built experimental setup permits the study of single living cells immersed in their buffer solution by contactless measurements.The Brillouin signal is deconvoluted in the buffer and the cell components,thereby revealing the mechanical heterogeneity inside the cell.In particular,a 20%increase is observed in the elastic modulus passing from the plasmatic membrane to the nucleus as distinguished by comparison with the Raman spectroscopic marker.Brillouin line shape analysis is even more relevant for the comparison of cells under physiological and pathological conditions.Following oncogene expression,cells show an overall reduction in the elastic modulus(15%)and apparent viscosity(50%).In a proof-of-principle experiment,the ability of this spectroscopic technique to characterize subcellular compartments and distinguish cell status was successfully tested.The results strongly support the future application of this technique for fundamental issues in the biomedical field. | Sara Mattana Maurizio Mattarelli Lorena Urbanelli Krizia Sagini Carla Emiliani Mauro Dalla Serra Daniele Fioretto Silvia Caponi | 2017 | Light(Science & Applications)2017，6，1： | 2 |
| 3 | Er^(3+)-activated silica inverse opals synthesized by the solgel method显示文摘We present the details of the sol-gel processing used to realize inverse silica opal,where the silica was activated with 0.3 mol% of Er3+ ions. The template(direct opal) was obtained assembling polystyrene spheres of the dimensions of 260 nm by means of a vertical deposition technique. The Er3+-activated silica inverse opal was obtained infiltrating,into the void of the template,the silica sol doped with Er3+ ions and subsequently removing the polystyrene spheres by means of calcinations. Scanning electron microscope showed that the inverse opals possess a fcc structure with a air hollows of about 210 nm and a photonic band gap,in the visible range,was observed from reflectance measurements. Spectroscopic properties of Er3+-activated silica inverse opal were investigated by luminescence spectroscopy,where,upon excitation at 514.5 nm,an emission of 4I13/2 → 4I15/2 of Er3+ ions transition with a 21 nm bandwidth was observed. Moreover the 4I13/2 level decay curve presents a single-exponential profile,with a measured lifetime of 18 ms,corresponding a high quantum efficiency of the system. | A. Chiappini C.Armellini A. Chiasera Y. Jestin M. Ferrari M. Mattarelli M. Montagna E. Moser C. Tosello L. Zampedri G. Nunzi Conti S. Pelli R. M. Almeida G. C. Righini | 2007 | Optoelectronics Letters2007，3，3： | 2 |
| 4 | Probiotics and prebiotics in animal feeding for safe food production显示文摘 | Gaggia F Mattarelli P Biavati B | 2010 | Int J Food Microb2010，141，： | 1 |
| 5 | The Role of Networks of Practice and Value Sharing in Knowledge Flows Between Professional Groups显示文摘 | Tagliaventi M R Mattarelli E | 2006 | Human Relations2006，59，3： | 1 |
| 6 | Potential of the Miller cycle on a HSDI diesel automotive engine显示文摘 | Rinaldini C A Mattarelli E Golovitchev V 1 | 2013 | Applied Energy2013，112，： | 1 |
| 7 | ,Characterization of the plasmid pVS809 from Bifidobacterium globosum显示文摘 | MATTARELLI P BIAVATI B ALESSANDRINI A | 1994 | New Microbiol1994，，17： | 1 |
| 8 | Probiotics and prebiotics in animal feeding for safe food production显示文摘 | Francesca Gaggìa Paola Mattarelli Bruno Biavati | 2010 | International Journal of Food Microbiology2010，，： | 1 |
| 9 | Characterization of the plasmid pVS809 from Bifidobacterium globosum 显示文摘 | Mattarelli P Biavati B Alessandrini A | 1994 | New Microbiol1994，17，4： | 1 |
| 10 | A decision support system for urban waste management显示文摘 | HAASTRUP P MANIESSO V MATTARELLI F | 1998 | European Journal of Operational Research1998，109，2： | 1 |
| 11 | Occurrence of the family Bifi- dobacteriaceae in human dental caries and plaque 显示文摘 | Modesto M Biavati B Mattarelli P | 2006 | Caries Res2006，40，： | 1 |
| 12 | Land - use planning in the vicinity of chemical sites : risk - informed decision making at a local community level 显示文摘 | Christou M D Mattarelli M | 2000 | Journal of Hazardous Materials2000，78，： | 1 |
| 13 | Characterization of the plasmid pVSS09 from Bifidobacterium globosum 显示文摘 | Mattarelli P Biavati B Alessandrini A | 1994 | NewMicrobiol1994，17，4： | 1 |
| 14 | Probiotics and prebiotics in animal feeding for safe food production 显示文摘 | Gaggla F Mattarelli P Biavati B | 2010 | International Journal of Food Microbi- ology2010，141，： | 1 |
| 15 | Proposal to Reclassify the Three Biotypes of Bifidobacterium Longum as Three Subspecies: Bifidobacterium Longum Subsp Longum Subsp nov, Bifidobacterium Longum Subsp Infa tis comb nov and Bifidobacterium Longum Subsp Suis comb nov显示文摘 | MATTARELLI P BONAPARTE C POT B | 2008 | IntJ Syst Evol Microbiol2008，58，： | 1 |
| 16 | 2-Stroke diesel engine for light aircraft显示文摘 | Mattarelli E Paltrinierri F Perini F | 2011 | SAE International Journal Engines2011，4，2： | 1 |
| 17 | The Role of Networks of Practice,Value Sharing,and Operational Proximity in Knowledge Flows Between Professional Groups显示文摘 | Tagliaventi M R Mattarelli E | 2006 | Human Relations2006，59，3： | 1 |
| 18 | Occurrence of the family bifidobacteriaceae in human dental caries and plaque显示文摘 | Modesto M Biavati B Mattarelli P | 2006 | Caries Res2006，40，3： | 1 |
| 19 | CFD analyses on 2-stroke high speed diesel engines显示文摘 | Rinaldini C Mattarelli E Golovitchev V | 2011 | SAE International Journal Engines2011，4，2： | 1 |
| 20 | Probiotics and prebiotics in animal feeding for safe food production显示文摘 | Francesca Gaggìa Paola Mattarelli Bruno Biavati | 2010 | International Journal of Food Microbiology2010，，： | 1 |
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