Silicon-photonic interferometric biosensor using active phase demodulation

2018 ◽  
Author(s):  
Yisbel E. Marin ◽  
Veronica Toccafondo ◽  
Philippe Velha ◽  
Yoon Jeong ◽  
Simona Scarano ◽  
...  
Keyword(s):  
Active Phase ◽  
Silicon Photonic ◽  
Interferometric Biosensor ◽  
Phase Demodulation

Integrated FBG Sensors Interrogation Using Active Phase Demodulation on a Silicon Photonic Platform

2017 ◽  
Vol 35 (16) ◽  
pp. 3374-3379 ◽  
Author(s):  
Yisbel E. Marin ◽  
Tiziano Nannipieri ◽  
Claudio J. Oton ◽  
Fabrizio Di Pasquale
Keyword(s):  
Active Phase ◽  
Silicon Photonic ◽  
Fbg Sensors ◽  
Phase Demodulation

scholarly journals Active phase correction of high resolution silicon photonic arrayed waveguide gratings

2017 ◽  
Vol 25 (6) ◽  
pp. 6320 ◽  
Author(s):  
M. Gehl ◽  
D. Trotter ◽  
A. Starbuck ◽  
A. Pomerene ◽  
A. L. Lentine ◽  
...  
Keyword(s):  
High Resolution ◽  
Active Phase ◽  
Phase Correction ◽  
Arrayed Waveguide Gratings ◽  
Silicon Photonic ◽  
Waveguide Gratings ◽  
Arrayed Waveguide

scholarly journals Coherent silicon photonic interferometric biosensor with an inexpensive laser source for sensitive label-free immunoassays

2020 ◽  
Vol 45 (24) ◽  
pp. 6595
Author(s):  
Jonas Leuermann ◽  
Vladimir Stamenkovic ◽  
Patricia Ramirez-Priego ◽  
Alejandro Sánchez-Postigo ◽  
Adrián Fernández-Gavela ◽  
...  
Keyword(s):  
Laser Source ◽  
Label Free ◽  
Silicon Photonic ◽  
Interferometric Biosensor

What catalysis needs from the electron microscopist

1988 ◽  
Vol 46 ◽  
pp. 694-695
Author(s):  
Alexis T. Bell
Keyword(s):  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Catalyst Deactivation ◽  
Surface Composition ◽  
Internal Surface ◽  
Active Phase ◽  
Atomic Scale ◽  
Metal Catalyst ◽  
Internal Surface Area ◽  
Porous Support

Heterogeneous catalysts, used in industry for the production of fuels and chemicals, are microporous solids characterized by a high internal surface area. The catalyticly active sites may occur at the surface of the bulk solid or of small crystallites deposited on a porous support. An example of the former case would be a zeolite, and of the latter, a supported metal catalyst. Since the activity and selectivity of a catalyst are known to be a function of surface composition and structure, it is highly desirable to characterize catalyst surfaces with atomic scale resolution. Where the active phase is dispersed on a support, it is also important to know the dispersion of the deposited phase, as well as its structural and compositional uniformity, the latter characteristics being particularly important in the case of multicomponent catalysts. Knowledge of the pore size and shape is also important, since these can influence the transport of reactants and products through a catalyst and the dynamics of catalyst deactivation.

CHANGES IN THE METABOLISM OF CALCIUM AND PHOSPHORUS IN THE VARIOUS PHASES OF ACROMEGALY AND FOLLOWING THE IMPLANTATION OF THE PITUITARY GLAND WITH 90Y

1961 ◽  
Vol 36 (2) ◽  
pp. 161-179 ◽  
Author(s):  
G. M. Molinatti ◽  
F. Camanni ◽  
O. Losana ◽  
M. Olivetti
Keyword(s):  
Pituitary Gland ◽  
Marked Decrease ◽  
Active Phase ◽  
Tolerance Test ◽  
Urinary Calcium ◽  
Phosphorus Metabolism ◽  
Blood Calcium ◽  
X Ray ◽  
Calcium Retention ◽  
Calcium And Phosphorus

ABSTRACT A study of calcium and phosphorus metabolism has been carried out on 13 acromegalic patients, in various stages of the disease. This study was repeated in nine patients following implantation of the pituitary gland with 90Y and in another two patients after deep X-ray therapy and suction removal of a pituitary adenoma respectively. Increased urinary calcium and phosphorus excretion was found in all the patients in whom the disease was in an active phase of evolution. The calcium tolerance test revealed a marked decrease of calcium retention in certain subjects, while in others, calcium retention was found to be increased. Such changes were not found in patients in whom the disease was in a quiescent phase. The blood calcium, phosphorus and alkaline phosphatase were found to be either normal or slightly increased. The implantation of the pituitary gland with 90Y and deep X-ray therapy induced a marked decrease of hypercalciuria, both spontaneous and induced, and of hyperphosphaturia, together with a definite improvement, of the clinical picture and glucose metabolism. It is concluded that the changes in calcium and phosphorus metabolism described above depend either directly or indirectly on a pituitary factor. They may therefore prove a reliable index for assessing pituitary growth hormone activity.

Ultra-Small Silicon Photonic Wire Waveguide Devices

2009 ◽  
Vol E92-C (2) ◽  
pp. 217-223 ◽  
Author(s):  
Tao CHU ◽  
Hirohito YAMADA ◽  
Shigeru NAKAMURA ◽  
Masashige ISHIZAKA ◽  
Masatoshi TOKUSHIMA ◽  
...  
Keyword(s):  
Waveguide Devices ◽  
Silicon Photonic ◽  
Photonic Wire
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