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1

The Synthesis of a Luminescent Plasmonic Nanomaterial

100%

Hashim Z., Green M.

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2014

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vol. 1

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issue 1

EN

Gold nanoparticles were synthesised in toluene and stabilised by a fluorescent conjugated polymer (F8BT). The gold/conjugated polymer nanoparticles system was also found to be stable in dichloromethane (DCM), exhibiting both fluorescence (quantum yield = 14%) and a surface plasmon in organic solvents

2

Wet-chemical treatment and electronic interface properties of silicon solar cell substrates

100%

Angermann H., Rappich J. r., Klimm C.

Open Physics

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2009

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vol. 7

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issue 2

363-370

EN

On textured n-type silicon substrates for solar cell manufacturing, the relation between light trapping behavior, structural imperfections, energetic distribution of interface state densities and interface recombination losses were investigated by applying surface sensitive techniques. The field-modulated surface photovoltage (SPV), in-situ photoluminescence (PL) measurements, total hemispherical UV-NIR-reflectance measurements and electron microscopy (SEM) were employed to yield detailed information on the influence of wet-chemical treatments on preparation induced micro-roughness and electronic properties of polished and textured silicon substrates. It was shown that isotropic as well as anisotropic etching of light trapping structures result in high surface micro-roughness and density of interface states. Removing damaged surface layers in the nm range by wet-chemical treatments, the density of these states and the related interface recombination loss can be reduced. In-situ PL measurements were applied to optimise HF-treatment times aimed at undamaged, oxide-free and hydrogen-terminated substrate surfaces as starting material for subsequent solar cell preparations.

3

Aerogel nanoscale magnesium oxides as a destructive sorbent for toxic chemical agents

100%

Štengl V., Bakardjieva S., Maříková M., Šubrt J., Opluštil F., Olšanská M.

Open Chemistry

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2004

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vol. 2

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issue 1

16-33

EN

An autoclave hypercritical drying procedure has been used to prepare precursors of MgO from Mg(OCH3)2. This material was prepared with a specific surface area of 1200 m2 g 1. The dehydrated materials consisted of much smaller crystallites than conventionally prepared MgO and were free of OCH3 groups. The precursors and samples of magnesium oxide were taken for experimental evaluation of their reactivity with mustard. The largest percentage of the conversion mustard into non-toxic products after the elapse of the reaction was 77%.

4

Changes of the expression of insulin-like growth factor 1 and its two receptors in the periphery of the developing lung are parallel to ultrastructural capillary changes during perinatal period

100%

Marszałek A., Biczysko W., Daa T., Kaczmarek E., Wąsowicz M., Yokoyama S.

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EN

Insulin-like growth factor type 1 (IGF-1) belongs to the peptide hormones which regulate cell proliferation and differentiation as well as angiogenesis. The aim of the present study was the quantitative evaluation of immuohistochemical (IH) expression of IGF-1 and its two receptors (IGF-1Rα and IGF-1Rβ) parallel to changes of capillary lumen/whole capillary area (L/W) ratio during the perinatal period. Tissue samples from lungs from 19-, and 21-day fetuses as well as 1-, 3-, 5-day old newborns were processed for frozen sections that were used for IH staining and then used for quantitative analysis of antigens expression. In parallel, tissue samples were processed for transmission electron microscopy and used for capillaries morphometry. Our results were statistically evaluated. We found that the expression of IGF-1 in the peripheral part of the developing lung has a peak at the moment of birth when changes of vascular structure were reflected by L/W ratio. This is followed by the peak expression of the IGF-1Rα, but not of the IGF-1Rβ.

5

Mechanical and morphological characterization of discarded fishnet/glass fiber reinforced polyester composite

86%

Monivarman P., Nagarajan V. A., Raj F. M., Monivarman P., Nagarajan V. A., Raj F. M.

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2020

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issue 6

6

Mikroskopowe metody badania cytoszkieletu

58%

Nowak N., Pomorski P.

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PL

Cytoszkielet to sieć białkowych polimerów oraz związanych z nimi setek białek motorycznych, regulatorowych i łączących cytoszkielet z innymi strukturami komórkowymi. Rozwój wiedzy o cytoszkielecie jest nierozerwalnie zwiększany z postępem technik mikroskopowych używanych do jego obserwacji. Początki tych badań to niespecyficzne, nieskomplikowane barwienia utrwalonego materiału biologicznego, które później rozwinęły się w nowoczesną mikroskopię strukturalną, pozwalającą na precyzyjne znakowanie określonych białek tworzących cytoszkielet, badanie ich stanu fizjologicznego czy też oddziaływań cytoszkieletu z luźno związanymi białkami błony czy cytoplazmy. Obecnie możliwe jest nie tylko obrazowanie struktury i funkcji cytoszkieletu ze znacznie lepszą rozdzielczością przestrzenną, ale także prowadzenie tych obserwacji na żywym materiale biologicznym. Z drugiej strony, stabilność cytoszkieletu umożliwia poszukiwanie nowych metod jego obrazowania, co niewątpliwie należy do kół napędowych postępu, jaki dokonał się i wciąż dokonuje się w dziedzinie mikroskopii.

EN

Cytoskeleton is basically a network of protein polymers, but it also contains thousands of motor, regulatory and scaffolding proteins that interact with this network. Discoveries related to the cytoskeleton were strictly connected to the development of microscopy techniques used to observe the cytoskeletal structures. At first, the imaging involved only unspecific, very simple staining of fixed material. Then, the methods evolved into advanced structural microscopy, which enabled accurate detection of specific cytoskeletal proteins, their physiological status, and interactions with loosely bound membrane and cytoplasmic proteins. Today, it is possible not only to visualize the structure and function of the cytoskeleton with better spatial resolution but also to perform the imaging in vivo on live biological specimens. On the other hand, one should also notice that observations of the stable, well defined cytoskeletal structures from their very discovery have continuously stimulated the progress in the microscopy field.

Refine search results

The Synthesis of a Luminescent Plasmonic Nanomaterial

Wet-chemical treatment and electronic interface properties of silicon solar cell substrates

Aerogel nanoscale magnesium oxides as a destructive sorbent for toxic chemical agents

Changes of the expression of insulin-like growth factor 1 and its two receptors in the periphery of the developing lung are parallel to ultrastructural capillary changes during perinatal period

Mechanical and morphological characterization of discarded fishnet/glass fiber reinforced polyester composite

Mikroskopowe metody badania cytoszkieletu