Materials Literature
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Semiconductor-sensitized solar cells (SSCs) are emerging as promising devices for achieving efficient and low-cost solar-energy conversion. The recent progress in the development of ZnO-nanostructure-based SSCs is reviewed here, and the key issues for their efficiency improvement, such as enhancing light harvesting an…
A series of semiconducting polymer dots (Pdots) composed of phosphorescent Ir(III) complexes and polyfluorene units in the main polymer chains are designed, synthesized, and applied in ratiometric oxygen sensing and photodynamic cancer therapy. The ultrasmall Pdots with particle size less than 10 nm are fabricated in…
Radiosensitizers can increase local treatment efficacy under a relatively low and safe radiation dose, thereby facilitating tumor eradication and minimizing side effects. Here, a new class of radiosensitizers is reported, which contain several gold (Au) atoms embedded inside a peptide shell (e.g., Au10-12 (SG)10-12 )…
Large-area freestanding graphene papers (GPs) are fabricated by electrospray deposition integrated with a continuous roll-to-roll process. Upon mechanical compaction and thermal annealing, GPs can achieve a thermal conductivity of as high as 1238.3-1434 W m(-1) K(-1) . The super-thermally conductive GPs display an out…
Two series of samples are prepared to investigate the viscoelastic properties of Gel Polymer Electrolytes. Samples were prepared by gelation technique with different oxygen to sodium ratio. For the present work, we take Poly(vinylidenfluoride) as polymer, sodium perchlorate as salt and of ethylene carbonate and propyl…
The current work deals with numerical and experimental analysis of thermal conductivity of epoxy matrix composites filled with coconut coir dust. The numerical analysis proceeds with designing of 3-dimensional spheres-in-cube models with filler concentration ranging from 0-20% volume (approximately) and its thermal an…
The authors propose a method for testing plastics endurance under plane transverse bending with a given cyclic deformation. The paper describes the relations for the calculation of the amount of deflection, rotation angles of the end parts of a sample and the technological gap d between the pins in movable supports an…
The article discusses the possibility of local and deep wastewater treatment of an automobile plant when painting automobile bodies. Experimental studies were carried out using coagulants extracted from waste (M); sorption methods (filtration through hydroanthracite and portlandite).
The article considers the method and algorithm of the computer analysis of viscoelastic deformation of a beam in a non-stationary temperature field. The data of program realization of the offered method of calculation are presented. The example of calculation of process of unsteady creep of a beam is adduced at thermo…
W pracy przedstawiono wyniki badań mikrostruktury i właściwości mechanicznych złącza spawanego stali 12HMF. Badany materiał pobrany został z rurociągu z obwodowym złączem spawanym po długotrwałej eksploatacji w temperaturze 490oC, ciśnieniu pary 8 MPa i czasie pracy 419 988 godzin. Przeprowadzone badania wykazały, że…
Magnetyczna ocena naprężeń w instalacjach rurociągowych z wykorzystaniem efektu BarkhausenaMagnetic evaluation of stress in the operation of pipeline using the Barkhausen effect Wstęp Eksploatacja urządzeń ciśnieniowych w energetyce zawodowej spotyka się z problemami zapewnienia bezpieczeństwa ich obsługi.Bezawaryjne…
The people listed below have served as reviewers to the ASME Journal of Electronic Packaging (JEP) during the period of September 2013 through June 2014. Serving as a reviewer for the JEP is a critical service necessary to maintain the quality of our publication and to provide the authors with a valuable peer review o…
Full text Figures and data Side by side Abstract eLife digest Introduction Results and discussion Materials and methods Data availability References Decision letter Author response Article and author information Metrics Abstract Enzymes can increase the rate of biomolecular reactions by several orders of magnitude. Al…
Near Infrared (NIR) emitting semiconductor quantum dots (QDs) have attracted great interest as a new class of fluorescent probes for cellular, molecular and in-vivo imaging applications, due to their stable and size-tunable absorption range, large molar extinction coefficient, long luminescence lifetime and higher pen…
International audience
Abstract : Nanoparticles (NPs) are, by definition, materials that range in size from 1 to 100 nanometers, in at least one axis, which allows for a broad selection of shapes and sizes, from spheres to rods, tubes and more intricate shapes. The use of NPs has been steadily increasing worldwide due to their fascinating a…
Objective To develop a superparamagnetic iron oxide nanoparticles ( SPIO ) based on MRI probe specifically targeting human epidermal growth factor receptor 2 (HER2) and explore its value as MRI positive contrast agents in vitro.Methods (1) The superparamagnetic iron oxide ( PS) was obtained by means of classical copre…
Objective To explore a promising system for tumor CD 44 receptor-targeted imaging and to investigate their physic-chemical properties and targeting effect on CD 44 abundant cancer cells in vitro.Methods The superparamagnetic iron oxide ( SPIO) nanoparticles were prepared by a coprecipitation in alkaline media starting…
A polishing method assisted by an auxiliary pulse electromagnetic field was proposed, where the magnetic polymer microspheres/SiO composite abrasives were anchored on a smooth glass tool plate by the magnetic force, and the dependence between diameter of composite abrasives and morphology of tool plate was reduced. In…
The chemistry of thiosemicarbazone complexes of transition metals has been the subject of attention, primarily because of overgrowing biological properties. These activities have been correlated with their metal-chelating abilities and reductive capacity. The coordination chemistry of molybdenum receives special atten…