Materials Literature
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Apoptosis is a biological process that plays important roles in embryogenesis, aging, and various diseases. During the process of apoptosis, cells undergo a series of morphological and molecular events such as blebbing, cell shrinkage, proteolysis, and nuclear DNA fragmentation. Investigating these events on a molecul…
The evaporation characteristics of sessile water droplets on smooth hydrophobic and structured superhydrophobic heated surfaces are experimentally investigated. Droplets placed on the hierarchical superhydrophobic surface subtend a very high contact angle (∼160°) and demonstrate low roll-off angle (∼1°), while the hyd…
A polymer-waveguide-based transparent and flexible force sensor array is proposed, which satisfies the principal requirements for a tactile sensor working on curvilinear surfaces, such as thinfilm architecture (thickness < 150 μm), localized force sensing (ca. 0-3 N), multiple-point re cognition (27 points), bending r…
We report on the demonstration of a femtosecond all-optical modulator providing, without nonlinearity and therefore at arbitrarily low intensity, ultrafast light-by-light control. The device engages the coherent interaction of optical waves on a metamaterial nanostructure only 30 nm thick to efficiently control absorp…
Large soft tissue defects involve significant tissue loss, requiring surgical reconstruction. Autologous flaps are occasionally scant, demand prolonged transfer surgery, and induce donor site morbidity. The present work set out to fabricate an engineered muscle flap bearing its own functional vascular pedicle for repa…
The traditional preparation of carbon materials requires specific polymer precursors and complex procedures. In this work, a series of easily prepared protic ionic liquids and salts (PILs/PSs) based on widely obtainable N-containing bases and acids were synthesized and explored as novel small-molecule precursors for p…
The effects of organic moieties on the luminescence properties of organic–inorganic layered perovskite-type compounds were investigated. Three single crystals were fabricated, namely, (C 4 H 9 NH 3 ) 2 PbBr 4 {C4}, (C 6 H 5 CH 2 NH 3 ) 2 PbBr 4 {Ben}, and (C 6 H 5 C 2 H 4 NH 3 ) 2 PbBr 4 {Phe}. Among the single crysta…
This paper describes the preparation and characterization of nanoscaled M-MOF-74/CPO-27-M (M = Mg, Mn, Co, Ni, and Zn) materials at room temperature. Some of the so-formed crystals are the smallest ones of any metal–organic framework (MOF) material (and, to the best of our knowledge, of any microporous material) ever…
The properties of the Li 2 O 2 discharge phase are expected to impact strongly the performance of Li–air batteries. Although both crystalline Li 2 O 2 (c-Li 2 O 2 ) and amorphous Li 2 O 2 (a-Li 2 O 2 ) have been reported to form in Li–air cells, little is known regarding possible differences in charge and mass transpo…
A virus-activated matrix is developed to overcome the challenge of forming vascularized bone tissue. It is generated by filling a 3D printed bioceramic scaffold with phage nanofibers displaying high-density RGD peptide. After it is seeded with mesenchymal stem cells (MSCs) and implanted into a bone defect, the phage n…
CONSPECTUS: The promise of mechanically interlocked architectures, such as rotaxanes and catenanes, as prototypical molecular switches and shuttles for nanotechnological applications, has stimulated an ever increasing interest in their synthesis and function. The elaborate host cavities of interlocked structures, howe…
Sn4 P3 is introduced for the first time as an anode material for Na-ion batteries. Sn4 P3 delivers a high reversible capacity of 718 mA h g(-1), and shows very stable cycle performance with negligible capa-city fading over 100 cycles, which is attributed to the confinement effect of Sn nanocrystallites in the amorphou…
Two-dimensional graphite-like carbon nitride nanosheets (g-C3N4 NSs) were hybridized with gold nanoparticles (Au NPs) to construct an electrochemiluminescence (ECL) immunosensor. The prepared Au NP-functionalized g-C3N4 NS nanohybrids (Au-g-C3N4 NHs) exhibit strong and stable cathodic ECL activity compared to g-C3N4 N…
The encapsulation of noble-metal nanoparticles (NPs) in metal-organic frameworks (MOFs) with carboxylic acid ligands, the most extensive branch of the MOF family, gives NP/MOF composites that exhibit excellent shape-selective catalytic performance in olefin hydrogenation, aqueous reaction in the reduction of 4-nitroph…
Crystalline metal-organic frameworks (MOFs) are porous frameworks comprising an infinite array of metal nodes connected by organic linkers. The number of novel MOF structures reported per year is now in excess of 6000, despite significant increases in the complexity of both component units and molecular networks. Thei…
Crystallization properties of Ge2Bi2Te5 and Ge10Sb90 amorphous nanoparticles subjected to pulsed laser irradiation, Mihara, Takashi, Kojima, Rie, Tsuchino, Akio, Sato, Shuji, Hisada, Kazuya, Furumiya, Shigeru, Yamada, Noboru
It has been generally accepted that melt elasticity plays an important role in the foaming process.1,2 It is well known that elastic properties in the molten state are enhanced by broadening the molecular weight distribution and incorporation of long-chain branches. This is the reason why low-density polyethylene (LDP…
Electro-optical measurements of the second, third and fourth harmonic frequencies have been performed in prototype antiferroelectric liquid crystal materials: 4-(1-methyl-heptyloxycarbonyl) phenyl 4′-octyloxybiphenyl-4-carboxylate (MHPOBC) and 4-(1-methyl-heptyloxycarbonyl) phenyl 4-(4′-octyloxyphenylcarbonyloxy) benz…
Stability of an idealized hyperbolic hedgehog in a nematic liquid crystal against a twist transition is investigated by extending the methodology of Rüdinger and Stark [Liq. Cryst. 26, 753 (1999)], where the hedgehog is confined between two concentric spheres. In the ideal hyperbolic-hedgehog the molecular orientation…
We investigate the anisotropic stress dependent magnetic and phonon behaviors in self-assembled CoFe2O4-PbTiO3 (CFO-PTO) nanostructures deposited on SrRuO3 buffered SrTiO3 substrates of various thickness. The increased vertical compressed stress with increasing thickness enhances the vertical magnetic anisotropy of CF…