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Search for "physicochemical" in Full Text gives 275 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Electron interaction with copper(II) carboxylate compounds

  • Michal Lacko,
  • Peter Papp,
  • Iwona B. Szymańska,
  • Edward Szłyk and
  • Štefan Matejčík

Beilstein J. Nanotechnol. 2018, 9, 384–398, doi:10.3762/bjnano.9.38

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  • = CnF2n+1, n = 1–6) were previously applied as Cu CVD precursors [34][38] for the formation of copper nanomaterials. This fact confirms that copper(II) carboxylate compounds can be considered as copper sources in vapor deposition processes. The influence of secondary ligands on the physicochemical
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Published 01 Feb 2018

Liquid-crystalline nanoarchitectures for tissue engineering

  • Baeckkyoung Sung and
  • Min-Ho Kim

Beilstein J. Nanotechnol. 2018, 9, 205–215, doi:10.3762/bjnano.9.22

Graphical Abstract
  • such as blood vessels and peripheral nerves. Figure 3 summarizes the biologically-relevant physicochemical interactions occurring between scaffolds and cells. Dense collagen matrices and scaffolds in cholesteric organization Various artificial systems have been developed by mimicking native LC
  • purposes, LCEs need to undergo additional physicochemical modifications. For example, Abbott and co-workers developed a cell-culture monitoring tool with which the orientational order of ECM-decorated nematic LCE substrates could be utilized for sensing ECM-attachment and proliferation of human embryonic
  • dispersions in various phases (e.g., lamellar, hexagonal, reverse hexagonal, bicontinuous cubic, micellar cubic) have been investigated in terms of the physicochemical interactions between stratum corneum and the LC formulations for pharmaceutic purposes [112][113]. Conclusion The strength of LC biomaterials
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Published 18 Jan 2018

Response under low-energy electron irradiation of a thin film of a potential copper precursor for focused electron beam induced deposition (FEBID)

  • Leo Sala,
  • Iwona B. Szymańska,
  • Céline Dablemont,
  • Anne Lafosse and
  • Lionel Amiaud

Beilstein J. Nanotechnol. 2018, 9, 57–65, doi:10.3762/bjnano.9.8

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  • were blue gels, stable in air, which should be moisture-protected during the storage. They were kept in cold and dry environment before use. The basic physicochemical data for [Cu2(EtNH2)2(O2CC2F5)4] are listed in [45]. For [Cu2(EtNH2)2(O2CC3F7)4], elemental analysis, EIMS and IR are listed below: Anal
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Published 05 Jan 2018

Involvement of two uptake mechanisms of gold and iron oxide nanoparticles in a co-exposure scenario using mouse macrophages

  • Dimitri Vanhecke,
  • Dagmar A. Kuhn,
  • Dorleta Jimenez de Aberasturi,
  • Sandor Balog,
  • Ana Milosevic,
  • Dominic Urban,
  • Diana Peckys,
  • Niels de Jonge,
  • Wolfgang J. Parak,
  • Alke Petri-Fink and
  • Barbara Rothen-Rutishauser

Beilstein J. Nanotechnol. 2017, 8, 2396–2409, doi:10.3762/bjnano.8.239

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  • medium and delivery onto the cell surface A general summary about the physicochemical properties of polymer-coated AuNPs and FeOxNPs can be found in a recent overview article, in which also all methods are discussed in detail [27]. The measured particle size revealed an average hydrodynamic diameter (dh
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Published 14 Nov 2017

Evaluating the toxicity of TiO2-based nanoparticles to Chinese hamster ovary cells and Escherichia coli: a complementary experimental and computational approach

  • Alicja Mikolajczyk,
  • Natalia Sizochenko,
  • Ewa Mulkiewicz,
  • Anna Malankowska,
  • Michal Nischk,
  • Przemyslaw Jurczak,
  • Seishiro Hirano,
  • Grzegorz Nowaczyk,
  • Adriana Zaleska-Medynska,
  • Jerzy Leszczynski,
  • Agnieszka Gajewicz and
  • Tomasz Puzyn

Beilstein J. Nanotechnol. 2017, 8, 2171–2180, doi:10.3762/bjnano.8.216

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  • approach is based on defining mathematical dependencies between the variance in molecular structures, encoded by so-called molecular descriptors, and the variance in a given physicochemical property or biological (e.g., cytotoxicity) property in a set of compounds (“endpoints”) [5][25][26][27][28][29][30
  • main physicochemical parameters that may govern toxic effects of the TiO2-based mono- and bimetallic nanoparticles to mammalian Chinese hamster ovary (CHO-K1) cells and to bacteria E. coli. The findings from this research study have clearly demonstrated that the cytotoxic effect of monometallic Au-TiO2
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Published 17 Oct 2017

Synthesis and characterization of noble metal–titania core–shell nanostructures with tunable shell thickness

  • Bartosz Bartosewicz,
  • Marta Michalska-Domańska,
  • Malwina Liszewska,
  • Dariusz Zasada and
  • Bartłomiej J. Jankiewicz

Beilstein J. Nanotechnol. 2017, 8, 2083–2093, doi:10.3762/bjnano.8.208

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  • ][5][6][7][8][9][10][11]. For many applications, however, the use of titanium dioxide in CSNs would be of much greater interest. Useful physicochemical properties of titanium dioxide in its crystalline forms, rutile and anatase, such as high refractive index and photocatalytic activity have led to its
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Published 05 Oct 2017

Systematic control of α-Fe2O3 crystal growth direction for improved electrochemical performance of lithium-ion battery anodes

  • Nan Shen,
  • Miriam Keppeler,
  • Barbara Stiaszny,
  • Holger Hain,
  • Filippo Maglia and
  • Madhavi Srinivasan

Beilstein J. Nanotechnol. 2017, 8, 2032–2044, doi:10.3762/bjnano.8.204

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  • derivatives as shape-controlling agents (SCAs) for application as anodes in lithium-ion batteries (LIBs). The physicochemical characteristics were investigated via XRD and FESEM, revealing well-crystallized α-Fe2O3 with adjustable nanorod lengths between 240 and 400 nm and aspect ratios in the range from 2.6
  • cycle comparison, c) cycling performance, and d) rate testing of α-Fe2O3-E0.5, α-Fe2O3-E1.5, α-Fe2O3-D0.5, α-Fe2O3-D0.8, α-Fe2O3-D1.5 and α-Fe2O3-B1.5. Physicochemical characteristics of α-Fe2O3 synthesized with different SCAs and various Fe3+ concentrations. DAP: 1,2-diaminopropane, EDA
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Published 28 Sep 2017

Development of an advanced diagnostic concept for intestinal inflammation: molecular visualisation of nitric oxide in macrophages by functional poly(lactic-co-glycolic acid) microspheres

  • Kathleen Lange,
  • Christian Lautenschläger,
  • Maria Wallert,
  • Stefan Lorkowski,
  • Andreas Stallmach and
  • Alexander Schiller

Beilstein J. Nanotechnol. 2017, 8, 1637–1641, doi:10.3762/bjnano.8.163

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  • abiotic and biotic experiments. To our knowledge, this is the first time of visualisation of NO at different concentrations via fluorescence-emitting NO550-PLGA microspheres. Results and Discussion Physicochemical characterisation of microspheres The preparation of NO550-loaded microspheres was a reliable
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Published 08 Aug 2017

Two-dimensional carbon-based nanocomposites for photocatalytic energy generation and environmental remediation applications

  • Suneel Kumar,
  • Ashish Kumar,
  • Ashish Bahuguna,
  • Vipul Sharma and
  • Venkata Krishnan

Beilstein J. Nanotechnol. 2017, 8, 1571–1600, doi:10.3762/bjnano.8.159

Graphical Abstract
  • the surface physicochemical properties of g-C3N4 can be tuned by introducing impurities into the crystal lattice of polymeric g-C3N4. Mainly the hydrogen impurities can produce the basic primary and secondary amines on its layer edges [68]. The presence of such basic groups (=NH, −NH2) on the surface
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Published 03 Aug 2017

Development of polycationic amphiphilic cyclodextrin nanoparticles for anticancer drug delivery

  • Gamze Varan,
  • Juan M. Benito,
  • Carmen Ortiz Mellet and
  • Erem Bilensoy

Beilstein J. Nanotechnol. 2017, 8, 1457–1468, doi:10.3762/bjnano.8.145

Graphical Abstract
  • complexes with non-polar drugs or active molecules [10]. CDs are easily able to modulate physicochemical properties of guest molecules, including solubility and/or stability in biological medium. Despite all the advantages, CDs have some challenges. For instance, it is well known that β-CD has low
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Published 13 Jul 2017

Cationic PEGylated polycaprolactone nanoparticles carrying post-operation docetaxel for glioma treatment

  • Cem Varan and
  • Erem Bilensoy

Beilstein J. Nanotechnol. 2017, 8, 1446–1456, doi:10.3762/bjnano.8.144

Graphical Abstract
  • nanoparticles. Physical stability of nanoparticles The physicochemical properties of all formulations have been monitored to investigate their physical stability in aqueous medium for 30 days; the results are shown in Figure 3. The diameter of anionic and cationic PCL nanoparticles increased by 8–10 nm and
  • , ± SD). RG2 cell viability with blank and DOC-loaded nanoparticles for 24 and 48 h (n = 3, ± SD). The effect of different preparation methods on physicochemical properties of blank PCL and mePEG-PCL nanoparticles (n = 3 ± SD). The effect of different preparation methods on the physicochemical properties
  • of blank PCL and mePEG-PCL nanoparticles (n = 3 ± SD). The effect of chitosan concentration on the physicochemical properties of blank PCL and mePEG-PCL nanoparticles (n = 3 ± SD). Pre-formulation parameters for nanoparticle preparation.
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Published 12 Jul 2017

Low uptake of silica nanoparticles in Caco-2 intestinal epithelial barriers

  • Dong Ye,
  • Mattia Bramini,
  • Delyan R. Hristov,
  • Sha Wan,
  • Anna Salvati,
  • Christoffer Åberg and
  • Kenneth A. Dawson

Beilstein J. Nanotechnol. 2017, 8, 1396–1406, doi:10.3762/bjnano.8.141

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  • Discussion Particle physicochemical characterisation Green fluorescent silica nanoparticles (SiO2-NPs) of 50 and 150 nm diameter were synthesized according to previous literature [42]. In order to remove eventual free fluorescent dye releasing from the labelled nanoparticles [3][43][44], the nanoparticle
  • ) the absence of serum, and (c,d) the presence of 10% FBS. The arrows indicate extracellular NPs and some NPs inside vesicles along the endolysosomal pathway. Abbreviations: L, lysosome; TJs, tight junctions. Physicochemical characterisation of the 50 nm and 150 nm SiO2-NPs in different media
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Published 07 Jul 2017

Bright fluorescent silica-nanoparticle probes for high-resolution STED and confocal microscopy

  • Isabella Tavernaro,
  • Christian Cavelius,
  • Henrike Peuschel and
  • Annette Kraegeloh

Beilstein J. Nanotechnol. 2017, 8, 1283–1296, doi:10.3762/bjnano.8.130

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  • . Acknowledgements The authors thank Anika Schwarz and Sarah Schmidt for excellence assistance in particle synthesis and physicochemical particle characterisation, Marcus Koch for EM analysis. The authors thank Eduard Arzt for continuing support of their work at INM.
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Published 21 Jun 2017

Characterization of ferrite nanoparticles for preparation of biocomposites

  • Urszula Klekotka,
  • Magdalena Rogowska,
  • Dariusz Satuła and
  • Beata Kalska-Szostko

Beilstein J. Nanotechnol. 2017, 8, 1257–1265, doi:10.3762/bjnano.8.127

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  • ferrite nanoparticles. Detailed studies in this subject on particular systems provide conclusions and give ideas as to how to apply magnetic nanoparticles in the fields of medical, biological or environment protection. Nevertheless, precise studies on the physicochemical properties of the ferrite core is
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Published 13 Jun 2017

Needs and challenges for assessing the environmental impacts of engineered nanomaterials (ENMs)

  • Michelle Romero-Franco,
  • Hilary A. Godwin,
  • Muhammad Bilal and
  • Yoram Cohen

Beilstein J. Nanotechnol. 2017, 8, 989–1014, doi:10.3762/bjnano.8.101

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  • present frameworks and tools to meet those needs. Keywords: engineered nanomaterials; environmental impacts; risk assessment; Introduction Engineered nanomaterials (ENMs) are increasingly being used in numerous industrial products and processes owing to their unique physicochemical properties. There are
  • analysis (e.g., environmental fate and transport data, physicochemical properties; toxicological information including dose–response information); The outputs/results obtained from the analysis such as description of the outcome (e.g., predicted values of environmental concentration, probability of risk
  • with similar structures and/or physicochemical properties will exhibit similar hazard profiles [36]. The Nano Task Force proposed that this framework could be useful for categorizing substances into common groups based on similarity of structural and physicochemical properties that induce similar
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Published 05 May 2017

Selective detection of Mg2+ ions via enhanced fluorescence emission using Au–DNA nanocomposites

  • Tanushree Basu,
  • Khyati Rana,
  • Niranjan Das and
  • Bonamali Pal

Beilstein J. Nanotechnol. 2017, 8, 762–771, doi:10.3762/bjnano.8.79

Graphical Abstract
  • nanoparticles (AuNPs) have attracted a great deal of research interest for various applications in biosensing. AuNPs have strong binding capability to the phosphate and sugar groups in DNA, rendering unique physicochemical properties for detection of metal ions. The formation of Au–DNA nanocomposites is evident
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Published 03 Apr 2017

Modeling adsorption of brominated, chlorinated and mixed bromo/chloro-dibenzo-p-dioxins on C60 fullerene using Nano-QSPR

  • Piotr Urbaszek,
  • Agnieszka Gajewicz,
  • Celina Sikorska,
  • Maciej Haranczyk and
  • Tomasz Puzyn

Beilstein J. Nanotechnol. 2017, 8, 752–761, doi:10.3762/bjnano.8.78

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  • interactions for organic compounds like pesticides or halogenated persistent organic pollutants [55][57][58][59]. All calculations were performed with the Gaussian 09 program [60]. Nano-QSPR modeling The Nano-QSPR method is based on the assumption that the variance in the physicochemical properties of
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Published 31 Mar 2017

Investigation of the photocatalytic efficiency of tantalum alkoxy carboxylate-derived Ta2O5 nanoparticles in rhodamine B removal

  • Subia Ambreen,
  • Mohammad Danish,
  • Narendra D. Pandey and
  • Ashutosh Pandey

Beilstein J. Nanotechnol. 2017, 8, 604–613, doi:10.3762/bjnano.8.65

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  • . Conclusion Heteroleptic tantalum alkoxides were successfully synthesized by reactions of tantalum ethoxide and tantalum n-butoxide with mono-/di-/trichloroacetic acid in inert atmosphere. The obtained products are pure and exhibit different physicochemical properties than their parent alkoxides. The modified
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Published 13 Mar 2017

Biological and biomimetic materials and surfaces

  • Stanislav Gorb and
  • Thomas Speck

Beilstein J. Nanotechnol. 2017, 8, 403–407, doi:10.3762/bjnano.8.42

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  • reason for this physicochemical “self-cleaning behaviour” is the double-structured water-repellent surface of the plant leaves which is comprised of micro- and nanostructured wax on dome-shaped papillose epidermis cells. Dirt particles as well as microorganisms and fungus spores are attached only via a
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Published 08 Feb 2017

Uptake of the proteins HTRA1 and HTRA2 by cells mediated by calcium phosphate nanoparticles

  • Olga Rotan,
  • Katharina N. Severin,
  • Simon Pöpsel,
  • Alexander Peetsch,
  • Melisa Merdanovic,
  • Michael Ehrmann and
  • Matthias Epple

Beilstein J. Nanotechnol. 2017, 8, 381–393, doi:10.3762/bjnano.8.40

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  • different charge by cells [56][57]. It also underscores the fact that both the cell type as well as the physicochemical properties of a nanoparticle play important roles when it comes to the uptake of nanoparticles by cells [5][55][58][59][60][61][62][63]. The presence of proteins around nanoparticles may
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Published 07 Feb 2017

Association of aescin with β- and γ-cyclodextrins studied by DFT calculations and spectroscopic methods

  • Ana I. Ramos,
  • Pedro D. Vaz,
  • Susana S. Braga and
  • Artur M. S. Silva

Beilstein J. Nanotechnol. 2017, 8, 348–357, doi:10.3762/bjnano.8.37

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  • stocking with both compression and venotonic actions, with strong advantages for the symptomatic treatment of leg chronic venous insufficiency. The aim of the present study is to evaluate the physicochemical aspects of the interaction of aescin with β-CD and γ-CD. The affinity and geometry of inclusion of
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Published 03 Feb 2017

Photocatalysis applications of some hybrid polymeric composites incorporating TiO2 nanoparticles and their combinations with SiO2/Fe2O3

  • Andreea Laura Chibac,
  • Tinca Buruiana,
  • Violeta Melinte and
  • Emil C. Buruiana

Beilstein J. Nanotechnol. 2017, 8, 272–286, doi:10.3762/bjnano.8.30

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  • inorganic components (Si–O–Si or/and γ-Fe2O3) were prepared by the dispersion of premade NPs (nanocrystalline TiO2, TiO2/SiO2, TiO2/Fe2O3, TiO2/SiO2/Fe2O3) within a photopolymerizable urethane dimethacrylate (polytetrahydrofuran-urethane dimethacrylate, PTHF-UDMA). The physicochemical characterization of
  • physicochemical characterization of nanoparticles Titania nanoparticles (TiO2) and titania nanoparticles mixed with Si–O–Si (TiO2/SiO2), γ-Fe2O3 (TiO2/Fe2O3) or Si–O–Si and γ-Fe2O3 (TiO2/SiO2/Fe2O3) were obtained by the sol–gel method, using titanium isopropoxide as precursor. The crystalline structures of the
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Published 27 Jan 2017

Ordering of Zn-centered porphyrin and phthalocyanine on TiO2(011): STM studies

  • Piotr Olszowski,
  • Lukasz Zajac,
  • Szymon Godlewski,
  • Bartosz Such,
  • Rémy Pawlak,
  • Antoine Hinaut,
  • Res Jöhr,
  • Thilo Glatzel,
  • Ernst Meyer and
  • Marek Szymonski

Beilstein J. Nanotechnol. 2017, 8, 99–107, doi:10.3762/bjnano.8.11

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  • with the aim to understand molecule–molecule and molecule–substrate interactions [6][7][8]. The strength and physicochemical character of such interactions determine the system geometrical structure and electronic properties; hence, detailed knowledge is necessary for optimization of the optoelectronic
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Published 11 Jan 2017

Impact of surface wettability on S-layer recrystallization: a real-time characterization by QCM-D

  • Jagoba Iturri,
  • Ana C. Vianna,
  • Alberto Moreno-Cencerrado,
  • Dietmar Pum,
  • Uwe B. Sleytr and
  • José Luis Toca-Herrera

Beilstein J. Nanotechnol. 2017, 8, 91–98, doi:10.3762/bjnano.8.10

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  • recrystallization process on top of both hydrophilic and fluorosilane-modified hydrophobic SiO2 surfaces led to large differences in terms of process kinetics and development, as observed from the respective real-time physicochemical analysis. S-layer membrane formation on a hydrophobic sample resembled more
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Published 11 Jan 2017

Effect of nanostructured carbon coatings on the electrochemical performance of Li1.4Ni0.5Mn0.5O2+x-based cathode materials

  • Konstantin A. Kurilenko,
  • Oleg A. Shlyakhtin,
  • Oleg A. Brylev,
  • Dmitry I. Petukhov and
  • Alexey V. Garshev

Beilstein J. Nanotechnol. 2016, 7, 1960–1970, doi:10.3762/bjnano.7.187

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  • obtained coatings, which depends on both the organic precursor composition and the preparation conditions. Thus, the investigation of the influence of physicochemical properties of carbon coatings on the electrochemical properties of Li(Ni,Mn,Co)O2+x/C composites proves to be an important task. The choice
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Published 09 Dec 2016
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