Effective Suppression of Antiphase Domains in GaP(N)/GaP Heterostructures on Si(001)

2019 ◽  
Vol 19 (8) ◽  
pp. 4510-4520 ◽  
Author(s):  
Alexey D. Bolshakov ◽  
Vladimir V. Fedorov ◽  
Olga Yu. Koval ◽  
Georgiy A. Sapunov ◽  
Maxim S. Sobolev ◽  
...  
Keyword(s):  
Effective Suppression ◽  
Antiphase Domains

Electron microscope characterization of MOCVD-grown gap layers on Si

1986 ◽  
Vol 44 ◽  
pp. 724-725
Author(s):  
K.M. Jones ◽  
M.M. Al-Jassim ◽  
J.M. Olson
Keyword(s):  
Atmospheric Pressure ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Organic Chemical ◽  
Lattice Match ◽  
Si Substrates ◽  
Metal Organic ◽  
Good Lattice ◽  
Antiphase Domains

The epitaxial growth of III-V semiconductors on Si for integrated optoelectronic applications is currently of great interest. GaP, with a lattice constant close to that of Si, is an attractive buffer between Si and, for example, GaAsP. In spite of the good lattice match, the growth of device quality GaP on Si is not without difficulty. The formation of antiphase domains, the difficulty in cleaning the Si substrates prior to growth, and the poor layer morphology are some of the problems encountered. In this work, the structural perfection of GaP layers was investigated as a function of several process variables including growth rate and temperature, and Si substrate orientation. The GaP layers were grown in an atmospheric pressure metal organic chemical vapour deposition (MOCVD) system using trimethylgallium and phosphine in H2. The Si substrates orientations used were (100), 2° off (100) towards (110), (111) and (211).

Formation process of periodic non-conservative antiphase boundary structure in L-Pd5Ce

1990 ◽  
Vol 48 (4) ◽  
pp. 162-163
Author(s):  
Masaru Itakura ◽  
Noriyuki Kuwano ◽  
Kensuke Oki
Keyword(s):  
Formation Process ◽  
Domain Size ◽  
Antiphase Boundary ◽  
Boundary Structure ◽  
Temperature Phase ◽  
Arc Melting ◽  
Iced Water ◽  
Antiphase Domains ◽  
Low Temperature Phase ◽  
Degree Of Order

The low temperature phase of Pd5Ce (L-Pd5Ce) has a one-dimensional long period superstructure (1D-LPS) derived from Ll2. The periodic antiphase boundaries (APBs) are parallel to (110) planes and have a shift vector of 1/2[110]. Hereafter, the indices are referred to the basic lattices of Ll2 As insertion of the APB causes a change in composition, such an APB is called “non-conservative”. Then, a domain size M depends upon the Ce concentration in the alloy. It was found that M increases also with temperature. The temperature dependency of M is attributed to a change of the degree of order within the antiphase domains. In this work, morphology of the non-conservative APBs is observed to clarify the formation process of the 1D-LPS.The alloy of Pd-16.7 at%Ce was prepared by arc melting in argon atmosphere. Disc specimens made from the alloy ingot were first held at 985 K for 260 ks and quenched in iced water to obtain the state of M=∞ or Ll2, followed by annealing for various lengths of time. The annealing temperature was 873 K where the equilibrium value for M is about 3 in unit of (110) lattice spacing of Ll2. Observation was carried out using microscopes JEM-2000FX, JEM-4000EX (HVEM Lab., Kyushu Univ.) and JEM-2000EX (Dept. of Mater. Sci. Tech., Kyushu Univ.).

On the origin and growth of antiphase domains in anorthite

1984 ◽  
Vol 107 (3) ◽  
pp. 489-494 ◽  
Author(s):  
Wolfgang F. Müller ◽  
Ralf J. John ◽  
Herbert Kroll
Keyword(s):  
Antiphase Domains

Factorial Modeling for Effective Suppression of Directional Noise

2017 ◽  
Author(s):  
Osamu Ichikawa ◽  
Takashi Fukuda ◽  
Gakuto Kurata ◽  
Steven J. Rennie
Keyword(s):  
Effective Suppression

scholarly journals Proteolysis-targeting chimera against BCL-XL destroys tumor-infiltrating regulatory T cells

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ryan Kolb ◽  
Umasankar De ◽  
Sajid Khan ◽  
Yuewan Luo ◽  
Myung-Chul Kim ◽  
...  
Keyword(s):  
T Cells ◽  
Regulatory T Cells ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Molecular Target ◽  
Therapeutic Strategies ◽  
Normal Tissues ◽  
Effective Suppression ◽  
Immunosuppressive Microenvironment ◽  
Cancer Immunotherapies

AbstractRegulatory T cells (Tregs) play an important role in maintaining immune homeostasis and, within tumors, their upregulation is common and promotes an immunosuppressive microenvironment. Therapeutic strategies that can eliminate Tregs in the tumor (i.e., therapies that do not run the risk of affecting normal tissues), are urgently needed for the development of cancer immunotherapies. Here we report our discovery of B-cell lymphoma extra-large (BCL-XL) as a potential molecular target of tumor-infiltrating (TI) Tregs. We show that pharmacological degradation of BCL-XL using a newly developed platelet-sparing BCL-XL Proteolysis-targeting chimera (PROTAC) induces the apoptosis of TI-Tregs and the activation of TI-CD8+ T cells. Moreover, these activities result in an effective suppression of syngeneic tumor growth in immunocompetent, but not in immunodeficient or CD8+ T cell-depleted mice. Notably, treatment with BCL-XL PROTAC does not cause detectable damage within several normal tissues or thrombocytopenia. These findings identify BCL-XL as a target in the elimination of TI-Tregs as a component of cancer immunotherapies, and that the BCL-XL-specific PROTAC has the potential to be developed as a therapeutic for cancer immunotherapy.

Antiphase domains in?-eucryptite (LiAlSiO4)

1976 ◽  
Vol 63 (6) ◽  
pp. 294-294 ◽  
Author(s):  
W. F. M�ller ◽  
H. Schulz
Keyword(s):  
Antiphase Domains

scholarly journals Effective Suppression of the Polysulfide Shuttle Effect in Lithium–Sulfur Batteries by Implementing rGO–PEDOT:PSS-Coated Separators via Air-Controlled Electrospray

ACS Omega ◽  
2018 ◽  
Vol 3 (12) ◽  
pp. 16465-16471 ◽  
Author(s):  
Jin Hong Lee ◽  
Jisoo Kang ◽  
Seung-Wan Kim ◽  
Willy Halim ◽  
Margaret W. Frey ◽  
...  
Keyword(s):  
Shuttle Effect ◽  
Effective Suppression ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Polysulfide Shuttle

scholarly journals Effective suppression of nitric oxide production by HX106N through transcriptional control of heme oxygenase-1

2015 ◽  
Vol 240 (9) ◽  
pp. 1136-1146 ◽  
Author(s):  
Doo Suk Lee ◽  
Binna N. Kim ◽  
Seonung Lim ◽  
Junsub Lee ◽  
Jiyoung Kim ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Heme Oxygenase ◽  
Transcriptional Control ◽  
Heme Oxygenase 1 ◽  
Nitric Oxide Production ◽  
Oxide Production ◽  
Effective Suppression

Hydrophilic crosslinked-polymeric surface capable of effective suppression of protein adsorption

2016 ◽  
Vol 378 ◽  
pp. 467-472 ◽  
Author(s):  
Yuri Kamon ◽  
Naoko Inoue ◽  
Erika Mihara ◽  
Yukiya Kitayama ◽  
Tooru Ooya ◽  
...  
Keyword(s):  
Protein Adsorption ◽  
Polymeric Surface ◽  
Effective Suppression
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