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Showing 13 to 24 of 205 entries
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In vitro response of primary rat osteoblasts to titania/hydroxyapatite coatings compared with transformed human osteoblast-like cells.

Journal of materials science. Materials in medicine

Ramires PA, Cosentino F, Milella E, Torricelli P, Giavaresi G, Giardino R.
PMID: 15348568
J Mater Sci Mater Med. 2002 Aug;13(8):797-801. doi: 10.1023/a:1016183326864.

The biocompatibility of titania/hydroxyapatite (TiO(2)HA) composite coatings, at different ratio obtained by sol-gel process, was investigated studying the behavior of primary cultures of rat osteoblastic cells, isolated by femoral trabecular bone tissue. Moreover, the results have been compared with...

Time-resolved imaging on a realistic tissue phantom: μ(s)' and μ(a) images versus time-integrated images.

Applied optics

Cubeddu R, Pifferi A, Taroni P, Torricelli A, Valentini G.
PMID: 21102872
Appl Opt. 1996 Aug 01;35(22):4533-40. doi: 10.1364/AO.35.004533.

A method is proposed by which we construct images through turbid media, plotting directly either the transport-scattering coefficient μ(s) ' or the absorption coefficient μ(a). These optical parameters are obtained from the best fit of the time-resolved transmittance curves...

Treating acid reflux disease in patients with Down syndrome: pharmacological and physiological approaches.

Clinical and experimental gastroenterology

Macchini F, Leva E, Torricelli M, Valadè A.
PMID: 21694868
Clin Exp Gastroenterol. 2011;4:19-22. doi: 10.2147/CEG.S15872. Epub 2011 Jan 25.

Down syndrome (DS) is often accompanied by gastrointestinal disease, occurring mainly in early infancy and frequently requiring therapy. Among motility disorders, the most frequent is gastroesophageal reflux disease (GERD), which may often be misdiagnosed because of its atypical manifestations....

Results of analysis of must concentrates and raisin extracts.

Mitteilungen aus dem Gebiete der Lebensmittel-untersuchung un Hygiene = Travaux de chimie alimentaire et d'hygiene

TORRICELLI A.
PMID: 20278289
Mitt Geb Lebensmittelunters Hyg. 1946;37(3):181-9.

No abstract available.

Atmospheric aerosol optical properties: a database of radiative characteristics for different components and classes.

Applied optics

Levoni C, Cervino M, Guzzi R, Torricella F.
PMID: 18264333
Appl Opt. 1997 Oct 20;36(30):8031-41. doi: 10.1364/ao.36.008031.

A database management system has been realized that, by taking physical and chemical properties (the complex refractive index and the size distribution) of basic components as its starting point, allows the user to obtain optical properties of default as...

Liquid phantom for investigating light propagation through layered diffusive media.

Optics express

Del Bianco S, Martelli F, Cignini F, Zaccanti G, Pifferi A, Torricelli A, Bassi A, Taroni P, Cubeddu R.
PMID: 19475045
Opt Express. 2004 May 17;12(10):2102-11. doi: 10.1364/opex.12.002102.

A liquid phantom for investigating light propagation through layered diffusive media is described. The diffusive medium is an aqueous suspension of calibrated scatterers and absorbers. A thin membrane separates layers with different optical properties. Experiments showed that a material...

Time-resolved spectrally constrained method for the quantification of chromophore concentrations and scattering parameters in diffusing media.

Optics express

D'Andrea C, Spinelli L, Bassi A, Giusto A, Contini D, Swartling J, Torricelli A, Cubeddu R.
PMID: 19503518
Opt Express. 2006 Mar 06;14(5):1888-98. doi: 10.1364/oe.14.001888.

We have devised and experimentally validated, on tissue-simulating phantoms and in vivo, a time-resolved spectral fitting analysis for direct assessment of chromophore concentrations and scattering parameters. Experimental data have been acquired with a time-resolved broadband system based on supercontinuum...

Functional tomography using a time-gated ICCD camera.

Biomedical optics express

Zhao Q, Spinelli L, Bassi A, Valentini G, Contini D, Torricelli A, Cubeddu R, Zaccanti G, Martelli F, Pifferi A.
PMID: 21412474
Biomed Opt Express. 2011 Feb 25;2(3):705-16. doi: 10.1364/BOE.2.000705.

We present a system for near infrared functional tomography based on a single pulsed source and a time-gated camera, for non-contact collection over a large area. The mean penetration depth of diffusely reflected photons is dependent on the arrival...

X-ray pushing of a mechanical microswing.

Nanotechnology

Siria A, Rodrigues MS, Dhez O, Schwartz W, Torricelli G, Ledenmat S, Rochat N, Auvert G, Bikondoa O, Metzger TH, Wermeille D, Felici R, Comin F, Chevrier J.
PMID: 21832730
Nanotechnology. 2008 Nov 05;19(44):445501. doi: 10.1088/0957-4484/19/44/445501. Epub 2008 Sep 26.

We report here for the first time the combination of x-ray synchrotron light and a micro-electro-mechanical system (MEMS). We show how it is possible to modulate in real time a MEMS mass distribution to induce a nanometric and tunable...

Calibration of scattering and absorption properties of a liquid diffusive medium at NIR wavelengths. Time-resolved method.

Optics express

Spinelli L, Martelli F, Farina A, Pifferi A, Torricelli A, Cubeddu R, Zaccanti G.
PMID: 19546968
Opt Express. 2007 May 28;15(11):6589-604. doi: 10.1364/oe.15.006589.

In this paper, a general method to calibrate the absorption coefficient of an absorber and the reduced scattering coefficient of a liquid diffusive medium, based on time-resolved measurements, is reported. An exhaustive analysis of the error sources affecting the...

Determination of reference values for optical properties of liquid phantoms based on Intralipid and India ink.

Biomedical optics express

Spinelli L, Botwicz M, Zolek N, Kacprzak M, Milej D, Sawosz P, Liebert A, Weigel U, Durduran T, Foschum F, Kienle A, Baribeau F, Leclair S, Bouchard JP, Noiseux I, Gallant P, Mermut O, Farina A, Pifferi A, Torricelli A, Cubeddu R, Ho HC, Mazurenka M, Wabnitz H, Klauenberg K, Bodnar O, Elster C, Bénazech-Lavoué M, Bérubé-Lauzière Y, Lesage F, Khoptyar D, Subash AA, Andersson-Engels S, Di Ninni P, Martelli F, Zaccanti G.
PMID: 25071947
Biomed Opt Express. 2014 Jun 04;5(7):2037-53. doi: 10.1364/BOE.5.002037. eCollection 2014 Jul 01.

A multi-center study has been set up to accurately characterize the optical properties of diffusive liquid phantoms based on Intralipid and India ink at near-infrared (NIR) wavelengths. Nine research laboratories from six countries adopting different measurement techniques, instrumental set-ups,...

Surgical management of presbyopia.

Clinical ophthalmology (Auckland, N.Z.)

Torricelli AA, Junior JB, Santhiago MR, Bechara SJ.
PMID: 23055664
Clin Ophthalmol. 2012;6:1459-66. doi: 10.2147/OPTH.S35533. Epub 2012 Sep 06.

Presbyopia, the gradual loss of accommodation that becomes clinically significant during the fifth decade of life, is a physiologic inevitability. Different technologies are being pursued to achieve surgical correction of this disability; however, a number of limitations have prevented...

Showing 13 to 24 of 205 entries