Wszystkie pola: Wróbel, Jarosław - Katalog OPAC zbiorów

Tytuł:: Multi-technique characterisation of InAs-on-GaAs wafers with circular defect pattern
Autorzy:: Boguski, Jacek
Wróbel, Jarosław
Złotnik, Sebastian
Budner, Bogusław
Liszewska, Malwina
Kubiszyn, Łukasz
Michałowski, Paweł P.
Ciura, Łukasz
Moszczyński, Paweł
Odrzywolski, Sebastian
Jankiewicz, Bartłomiej
Wróbel, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/2204219.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: wafer homogeneity
wafer defect pattern
surface roughness
indium arsenide
beryllium doping
Opis:: The article presents the results of diameter mapping for circular-symmetric disturbance of homogeneity of epitaxially grown InAs (100) layers on GaAs substrates. The set of acceptors (beryllium) doped InAs epilayers was studied in order to evaluate the impact of Be doping on the 2-inch InAs-on-GaAs wafers quality. During the initial identification of size and shape of the circular pattern, non-destructive optical techniques were used, showing a 100% difference in average roughness between the wafer centre and its outer part. On the other hand, no volumetric (bulk) differences are detectable using Raman spectroscopy and highresolution X-ray diffraction. The correlation between Be doping level and circular defect pattern surface area has been found.
Źródło:: Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144564
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Connexin-dependent intercellular stress signaling in tissue homeostasis and tumor development
Autorzy:: Czyż, Jarosław
Piwowarczyk, Katarzyna
Paw, Milena
Luty, Marcin
Wróbel, Tomasz
Catapano, Jessica
Madeja, Zbigniew
Ryszawy, Damian
Powiązania:: https://bibliotekanauki.pl/articles/1038572.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: carcinogenesis
connexin
gap junctions
cellular stress
tumor
Opis:: Cellular stress responses determine tissue development, homeostasis and pathogenesis. Paracrine signaling, exchange of mechanical stimuli and intercellular transfer of small metabolites via connexin-built gap junctional channels are involved in the cellular stress detection and propagation of stress stimuli in multicellular networks. Cellular stress responses are also regulated through the activity of unpaired connexons (hemichannels) and via the intracellular interference of connexins with the cell cycle and pro-apoptotic machinery. Therefore, connexins are considered as multidirectional transmitters of the "outside-in" and "inside-out" stress signaling that are crucial for tissue homeostasis, regeneration and pathology. In particular, the disturbance of connexin function during the multi-stage process of tumor development leads to abnormal reactions of tumor cells to stress stimuli. In this review, we outline the current knowledge on the multidirectional role of connexins in the detection of stress signals. We also discuss the role of connexin-mediated intercellular transmittance of stress signals in tumour promotion, progression and metastatic cascade. Highlights: 1. Connexins and gap junctions protect cells from the microenvironmental stress and are involved in propagation and intracellular processing of stress signals. 2. The quality and quantity of stress stimuli, which may lead to cell adaptation or death by apoptosis, is determined by intrinsic properties of connexins and the cell phenotype. 3. Connexin deficiency increases the resistance of tumor cells to the "outside-in" stress signaling. 4. The connexin-mediated "inside-out" stress signaling participates in tumor cell invasion during the metastatic cascade.
Źródło:: Acta Biochimica Polonica; 2017, 64, 3; 377-389
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki