Stabilization of hydroxyl-terminated silanes in porous silicon for in-situ DNA synthesis

2010 ◽  
Vol 8 (6) ◽  
pp. 1851-1855 ◽  
Author(s):  
Jenifer L. Lawrie ◽  
Sharon M. Weiss
Keyword(s):  
Porous Silicon ◽  
Dna Synthesis

(Invited) Porous Silicon Dissolution Monitoring and Optical Constants Measurement Using in Situ Photoconduction in HF

2016 ◽  
Vol 75 (1) ◽  
pp. 63-75
Author(s):  
B. Gelloz ◽  
K. Ichimura ◽  
H. Fuwa ◽  
E. Kondoh ◽  
L. Jin
Keyword(s):  
Porous Silicon ◽  
Optical Constants ◽  
Silicon Dissolution

scholarly journals Porous Silicon Structural Evolution from In-Situ Luminescence and Raman Measurements

1996 ◽  
Vol 431 ◽  
Author(s):  
D. R. Tallant ◽  
M. J. Kelly ◽  
T. R. Guilinger ◽  
R. L. Simpson
Keyword(s):  
Porous Silicon ◽  
Silicon Surface ◽  
Structural Evolution ◽  
Surface Oxidation ◽  
Ethanol Solution ◽  
Nonradiative Recombination ◽  
Photoluminescence Intensity ◽  
Exciton Migration ◽  
Photoluminescence Mechanism

AbstractWe performed in-situ photoluminescence and Raman measurements on an anodized silicon surface in the HF/ethanol solution used for anodization. The porous silicon thereby produced, while resident in HF/ethanol, does not immediately exhibit intense photoluminescence. Intense photoluminescence develops spontaneously in HF/ethanol after 18–24 hours or with replacement of the HF/ethanol with water. These results support a quantum confinement mechanism in which exciton migration to traps and nonradiative recombination dominates the de-excitation pathways until silicon nanocrystals are physically separated and energetically decoupled by hydrofluoric acid etching or surface oxidation. The porous silicon surface, as produced by anodization, shows large differences in photoluminescence intensity and peak wavelength over millimeter distances. Parallel Raman measurements implicate nanometer-size silicon particles in the photoluminescence mechanism.

Magnetic Properties of Ferrous Ferric Oxide Confined in Porous Silicon

2010 ◽  
Vol 663-665 ◽  
pp. 1142-1145
Author(s):  
Yuan Ming Huang ◽  
Bao Gai Zhai ◽  
Qing Lan Ma ◽  
Ming Meng
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Iron Oxide ◽  
Porous Silicon ◽  
Ferrous Iron ◽  
Silicon Film ◽  
X Ray ◽  
Loop Measurement ◽  
Scanning Electron

During the chemical synthesis nanometer-sized particles of ferrous iron oxide were in situ infiltrated into the mesopores in a porous silicon film. The microstructures of porous silicon and the magnetic properties of the nanometer-sized particles of the ferrous iron oxide were characterized with scanning electron microscopy, X-ray diffractometry, and the hysteresis loop measurement, respectively. Our results have demonstrated that the magnetic properties of the nanometer-sized Fe3O4 particles can be dramatically modified when they are confined into the mesopores of the porous silicon film.

HYPERTROPHY AND HYPERPLASIA IN THE MOUSE UTERUS AFTER OESTROGEN TREATMENT: AN AUTORADIOGRAPHIC STUDY

1973 ◽  
Vol 56 (1) ◽  
pp. 133-NP ◽  
Author(s):  
L. MARTIN ◽  
C. A. FINN ◽  
GAIL TRINDER
Keyword(s):  
Cell Death ◽  
Dna Synthesis ◽  
Proliferative Response ◽  
Autoradiographic Study ◽  
Luminal Epithelium ◽  
Uterine Tissue ◽  
Mouse Uterus ◽  
Oestrogen Treatment ◽  
Ovariectomized Mice

SUMMARY The uteri of untreated ovariectomized mice consisted almost entirely of myometrium and connective tissue stroma. After oestrogenic stimulation these tissues underwent marked hypertrophy, but showed little proliferation. The luminal epithelium underwent marked hyperplasia, with most cells dividing twice to quadruple cell numbers by 35–40 h, when they made up 10–12% of the uterine tissue volume and 20% of the total uterine cell population. The proliferative response was rapid, highly synchronized and short-lived. The number of cells incorporating [3H]thymidine first increased 8·5 h after oestradiol-17β and by 13–16 h 60–70% were engaged in DNA synthesis. Up to 21 h cell-death was minimal. From 21 h onwards the proliferation rate declined and the rate of cell death increased. A second injection of oestrogen prevented the rise in death rate and produced a second smaller burst of DNA synthesis. Cells in DNA synthesis or mitosis were insensitive to oestrogen. A smaller proliferative response occurred in the glands: only 25% of cells entered DNA synthesis after the first injection of oestradiol and none after the second. Gland cells appeared to die in situ and there was no evidence that they migrated into the luminal epithelium.

Fabrication and properties of in situ silicon nitride nanowires reinforced porous silicon nitride (SNNWs/SN) composites

2018 ◽  
Vol 38 (6) ◽  
pp. 2671-2675 ◽  
Author(s):  
Duan Li ◽  
Bin Li ◽  
Xuejin Yang ◽  
Shitao Gao ◽  
Yuanyi Zheng
Keyword(s):  
Silicon Nitride ◽  
Porous Silicon

Complementary DNA Synthesis in Situ: Methods and Applications

1995 ◽  
pp. 3-23
Author(s):  
JAMES EBERWINE ◽  
CORINNE SPENCER ◽  
KEVIN MIYASHIRO ◽  
SCOTT MACKLER ◽  
RICHARD FINNELL
Keyword(s):  
Dna Synthesis ◽  
Complementary Dna ◽  
In Situ Methods

In situ study of porous silicon thin films thermal oxidation by pulsed laser photoacoustics

2018 ◽  
Vol 33 (8) ◽  
pp. 085001
Author(s):  
Atzin David Ruíz Pérez ◽  
M B de la Mora ◽  
J L Benítez ◽  
R Castañeda-Guzmán ◽  
Jorge Alejandro Reyes-Esqueda ◽  
...  
Keyword(s):  
Thin Films ◽  
Porous Silicon ◽  
Thermal Oxidation ◽  
Pulsed Laser ◽  
In Situ Study ◽  
Silicon Thin Films
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