Materials Literature
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This chapter explains how the shape of a simple nonconvex particle, a u-particle influences bulk rheology. It introduces experimental techniques used to characterize granular rheology. Relaxation processes studied under oscillatory perturbations are found in many soft-matter systems such as oscillatory shear experimen…
This work contributes to the discussion on defect levels in Cu(In,Ga)Se2 photovoltaic material. CuInSe2- and Cu(In,Ga)Se2- based Schottky junctions, solar cells and thin films were investigated using complementary capacitance and current spectroscopic techniques. Depending on the applied technique and type of investig…
ABSTRACT BACKGROUND AND PURPOSE Multimodality magnetic resonance imaging (MRI) can provide complementary information in the assessment of brain tumors. We aimed to segment tumor in amide proton transfer–weighted (APTw) images and to investigate multiparametric MRI biomarkers for the assessment of glioma response to ra…
The popular MARTINI coarse-grained (CG) force field requires the protein structure to be fixed, and is unsuitable for simulating dynamic processes such as protein folding. Here, we examine the feasibility of developing a flexible protein model within the MARTINI framework. The results demonstrate that the MARTINI CG s…
In rheology, authors probe the response of a material as a strain deformation or stress is applied. This chapter discusses shear deformations, and the concepts and methods, which are directly applicable to extensional flows and deformations. The response of a material to deformations, both the characteristic timescale…
Photodynamic therapy (PDT) has attracted widespread attention due to its potential in the treatment of various cancers. Porphyrinic pyropheophorbide-a (PPa) has been shown to be a potent photosensitizer in PDT experiments. In this paper, a C-3¹,13¹ bisphenylhydrazone modified methyl pyropheophorbide-a (BPHM) was desig…
Carbon steels (CSs) were anodized in an ethylene glycol solution containing 3 vol.% H 2 O and 0.1 m NH 4 F to coat with nanotube arrays film. The as anodized nanotube arrays film were annealed in argon atmosphere at various temperatures ranging from 250 to 550 °C for 4 h. The morphology and crystal phases of the film…
A new type of clay column particles was prepared, in which a hectorite layer (∼0.1 µm thickness) covered uniformly the surface of amorphous silica particles with an average radius of 5 µm (ref. Okada et al., The Journal of Physical Chemistry C, 116, 21864-21869 (2012)). The hectorite layer was fully ion-exchanged with…
Application of nano-structures requires a knowledge of their fundamental physical (mechanical, electromagnetic, optical, etc.) characteristics. Thermodynamic properties associated with phonon displacements through the nano-samples are particularly interesting. Independent of the type of lattices, the thermodynamics of…
For polymer composite product manufacture, curing is a critical step in achieving desired thermal and mechanical properties. The conventional thermal cure processes using hot air ovens and autoclaves are time and energy intensive. Microwave (MW) assisted curing is one of the alternative, most promising methods of curi…
Microfibrous PIM-1 membranes have been produced by electrospinning process. Conditions for the fabrication (concentration of polymer, voltage, feed flow rate and distance between tip and collector) have been investigated, and smooth fibrous materials with an average diameter of 2 µm have been obtained in these followi…
Charge transfer (CT) states at the donor–acceptor interfaces play an important role in organic optoelectronic devices, yielding photocarrier generation or recombination losses. In this study, we fabricate and characterize vacuum-deposited organic photodiodes (OPDs) composed of SubPc:C60 with various active-layer thick…
Nature shows excellent control over the mechanics of fibrous hydrogels by assembling protein fibers into bundles of well-defined dimensions. Yet, obtaining artificial materials displaying controlled bundling remains a challenge. Here, we developed genetically engineered protein-based polymers functionalized with hepar…
Under the double pressures caused by the energy shortage and environmental damage, to exploit the agricultural wastes and convert into available clean fuels are becoming more and more urgent in modern society. The aim of learning the pyrolysis characteristics of soybean straw and corn straw, the nonisothermal thermogr…
ABSTRACT Environmental stress cracking (ESC) was replicated in vitro on Optim™ (OPT) insulation, a polydimethylsiloxane‐based polyurethane utilized clinically in cardiac leads, using a Zhao‐type oxidation model. OPT performance was compared to that of two industry standard polyether urethanes: Pellethane® 80A (P80A),…
The role of atom probe tomography in the investigation of clustering and segregation of dopants to lattice defects in semiconductors is highlighted on the basis of some selected salient illustrations obtained at the Groupe de Physique des Matériaux of Rouen (France). The instrument is shown to be able to map out the 3…
Maintenance of articular cartilage allografts in culture media is a common method of tissue storage; however, the technical parameters of graft storage remain controversial. In this study, we examined the optimal temperature and culture medium exchange rate for the storage of osteochondral allografts in vitro. Cylindr…
The stress corrosion cracking (SCC) of carbon steel in nitrate-containing environments has been known for a long time and has become important in managing the integrity of aging underground radioactive waste storage tanks. This paper describes the latest research on the effect of environmental chemistry on localized c…
To improve the extracellular production of alkaline β-mannanase from alkaliphilic Bacillus sp. N16-5 in Escherichia coli, two truncated recombinant mannanases (32a-ManAR2 and 22b-ManAR2) were obtained. Compared with the full-length mannanases (32a-ManAR1 and 22b-ManAR1), the truncated mannanases not only showed higher…
The achievable fundamental magnetic resonance in split ring resonators (SRR) is limited by the electron plasma oscillation in the metal. This so-called kinetic inductance limitation was predicted many years ago, but its experimental verification has been hindered due to nanofabrication challenges. Here, the first expe…