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Articles 1 - 30 of 37
Full-Text Articles in Physical Sciences and Mathematics
Target Dna Recognition Using Electrochemical Impedance Spectroscopy, Pauline Michaels, Simone Ciampi, Chan Yean Yean, J Justin Gooding
Target Dna Recognition Using Electrochemical Impedance Spectroscopy, Pauline Michaels, Simone Ciampi, Chan Yean Yean, J Justin Gooding
Australian Institute for Innovative Materials - Papers
Electrochemical impedance spectroscopy was used to differentiate between different target DNA sequences without the use of a redox label or application of large bias voltages. This method relies on the formation of a mixed self-assembled monolayer (SAMs) composed of single-stranded DNA and a diluent, mercaptoethanol. Recognition of the DNA analytes was achieved through the significant increase in conductance for the double stranded DNA, as compared to single-stranded DNA. Non-complementary and single base-pair mismatches were also able to be differentiated. 2010 IEEE.
Wet Chemical Routes To The Assembly Of Organic Monolayers On Silicon Surfaces Via The Formation Of Si-C Bonds: Surface Preparation, Passivation And Functionalization, Simone Ciampi, Jason Brian Harper, J Justin Gooding
Wet Chemical Routes To The Assembly Of Organic Monolayers On Silicon Surfaces Via The Formation Of Si-C Bonds: Surface Preparation, Passivation And Functionalization, Simone Ciampi, Jason Brian Harper, J Justin Gooding
Australian Institute for Innovative Materials - Papers
Organic functionalization of non-oxidized silicon surfaces, while allowing for robust chemical passivation of the inorganic substrate, is intended and expected to broaden the chemical, physical and electronic properties of the currently most relevant technological material. Numerous protocols are now available for the preparation of Si-C, Si-O and Si-N bound layers. In particular, the covalent attachment of 1-alkenes and 1-alkynes onto hydride-terminated Si(100) and Si(111) has seen a wealth of research activity starting from the pioneering work of Linford and Chidsey (Alkyl monolayers covalently bonded to silicon surfaces, J. Am. Chem. Soc., 1993, 115(26), 12631-12632). This critical review aims to bring …
Biomimetics And Materials With Multiple Personalities - The Foundation Of Next Generation Molecular Sensing Devices, Dermot Diamond, Robert P. Byrne, Fernando Benito-Lopez, John Cleary, Damien Maher, John Healy, Cormac Fay, Jung Ho Kim, King Tong Lau
Biomimetics And Materials With Multiple Personalities - The Foundation Of Next Generation Molecular Sensing Devices, Dermot Diamond, Robert P. Byrne, Fernando Benito-Lopez, John Cleary, Damien Maher, John Healy, Cormac Fay, Jung Ho Kim, King Tong Lau
Australian Institute for Innovative Materials - Papers
A strategy for advancing the price-performance capabilities of autonomous chemical sensor platforms is outlined. The importance of parallel efforts into the production of robust sensing platforms capable of autonomous monitoring of important environmental targets, while also generating potentially disruptive technologies based on fundamental materials science research is emphasised.
Li2b12h12·7nh3: A New Ammine Complex For Ammonia Storage Or Indirect Hydrogen Storage, Zhenguo Huang, Judith C. Gallucci, Xuenian Chen, Teshome B. Yisgedu, Hima Kumar Lingam, Sheldon G. Shore, Ji-Cheng Zhao
Li2b12h12·7nh3: A New Ammine Complex For Ammonia Storage Or Indirect Hydrogen Storage, Zhenguo Huang, Judith C. Gallucci, Xuenian Chen, Teshome B. Yisgedu, Hima Kumar Lingam, Sheldon G. Shore, Ji-Cheng Zhao
Australian Institute for Innovative Materials - Papers
A new ammine complex, Li2B12H12$7NH3, that can reversibly release all the NH3 at below 200oC and reabsorb NH3 at room temperature and 0.5 bar was synthesized and investigated for reversible ammonia storage or indirect hydrogen storage.
InterMolecular DiHydrogen- And Hydrogen-Bonding InterActions In DiAmmonium Closo-DecaHydroDecaBorate Sesquihydrate, Teshome B. Yisgedu, Xuenian Chen, Hima Kumar Lingam, Zhenguo Huang, Edward A. Meyers, Sheldon G. Shore, Ji-Cheng Zhao
InterMolecular DiHydrogen- And Hydrogen-Bonding InterActions In DiAmmonium Closo-DecaHydroDecaBorate Sesquihydrate, Teshome B. Yisgedu, Xuenian Chen, Hima Kumar Lingam, Zhenguo Huang, Edward A. Meyers, Sheldon G. Shore, Ji-Cheng Zhao
Australian Institute for Innovative Materials - Papers
The asymmetric unit of the title salt, 2NH4+_B10H102__1.5H2O or (NH4)2B10H10_1.5H2O, (I), contains two B10H102_ anions, four NH4+ cations and three water molecules. (I) was converted to the anhydrous compound (NH4)2B10H10, (II), by heating to 343 K and its X-ray powder pattern was obtained. The extended structure of (I) shows two types of hydrogen-bonding interactions (N-H_ _ _O and O-H_ _ _O) and two types of dihydrogen-bonding interactions (N- H_ _ _H-B and O-H_ _ _H-B). The N-H_ _ _H-B dihydrogen bonding forms a two-dimensional sheet structure, and hydrogen bonding (N-H_ _ _O and O-H_ _ _O) and O- H_ _ …
Strong Competition Between The Delta L And Delta T-C Flux Pinning Mechanisms In Mgb2 Doped With Carbon Containing Compounds, Shaban R. Ghorbani, Xiaolin Wang, Md S. Hossain, Qiwen Yao, S X. Dou, Sung-Ik Lee, K C. Chung, Y K. Kim
Strong Competition Between The Delta L And Delta T-C Flux Pinning Mechanisms In Mgb2 Doped With Carbon Containing Compounds, Shaban R. Ghorbani, Xiaolin Wang, Md S. Hossain, Qiwen Yao, S X. Dou, Sung-Ik Lee, K C. Chung, Y K. Kim
Australian Institute for Innovative Materials - Papers
The transport and magnetic properties of 10 wt % malic acid and 5 wt % nanocarbon doped MgB2 have been studied by measuring the resistivity (p), critical current density (jc), connectivity factor (AF), irreversibility field (Hirr), and upper critical field (Hc2). The pinning mechanisms are studied in terms of the collective pinning model. It was found that both mean free path (δl) and critical temperature (δTc) pinning mechanisms coexist in both doped MgB2. For both the malic acid and nanocarbon …
Enhancement Of The In-Field Jc Of Mgb2 Via Sicl4 Doping, Xiaolin Wang, S X. Dou, Md S. Hossain, Zhenxiang Cheng, X.Z Liao, Shaban R. Ghorbani, Qiwen Yao, Jung Ho Kim, Tania M. Silver
Enhancement Of The In-Field Jc Of Mgb2 Via Sicl4 Doping, Xiaolin Wang, S X. Dou, Md S. Hossain, Zhenxiang Cheng, X.Z Liao, Shaban R. Ghorbani, Qiwen Yao, Jung Ho Kim, Tania M. Silver
Australian Institute for Innovative Materials - Papers
We present the following results. (1) We introduce a doping source for MgB2, liquid SiCl4, which is free of C, to significantly enhance the irreversibility field (Hirr), the upper critical field (Hc2), and the critical current density (Jc) with a little reduction in the critical temperature (Tc). (2) Although Si can not be incorporated into the crystal lattice, a significant reduction in the a-axis lattice parameter was found, to the same extent as for carbon doping. (3) Based on the first-principles calculation, it is found that it …
Magnetic Properties Of Ho2fe17-Xmnx - Influence Of Mn Substitution, Jianli Wang, Stewart J. Campbell, A J Studer, S J. Kennedy, Rong Zeng
Magnetic Properties Of Ho2fe17-Xmnx - Influence Of Mn Substitution, Jianli Wang, Stewart J. Campbell, A J Studer, S J. Kennedy, Rong Zeng
Australian Institute for Innovative Materials - Papers
The structural and magnetic properties of Ho2Fe17−xMnx (x=0-5) have been investigated by x-ray diffraction, Mössbauer spectroscopy and DC magnetization measurements (0-5 T) over the temperature range 4.5-350 K. Similar to other ferrimagnetic R2Fe17-xMnx systems, the unit cell volume generally increases with Mn content other than for low Mn values where a slight maximum is detected around x ∼ 0.5. The nature of the magnetic phase transitions around TC is shown by Arrot plot analysis to be second order for all samples. The Curie temperature remains essentially unchanged …
The Mechanical And The Electrical Properties Of Conducting Polypyrrole Fibers, Javad Foroughi, Shaban R. Ghorbani, Germanas Peleckis, Geoffrey M. Spinks, Gordon G. Wallace, Xiaolin Wang, S X. Dou
The Mechanical And The Electrical Properties Of Conducting Polypyrrole Fibers, Javad Foroughi, Shaban R. Ghorbani, Germanas Peleckis, Geoffrey M. Spinks, Gordon G. Wallace, Xiaolin Wang, S X. Dou
Australian Institute for Innovative Materials - Papers
The mechanical and the electrical properties of polypyrrole (PPy) fibers and electrochemically deposited PPy films were studied. It was found that the PPy fibers showed a significantly higher strength than the PPy films due to better orientation of the molecular structure. The electrochemically prepared PPy films had a higher electrical conductivity than that of the fibers at high temperature. At low temperature, the PPy fibers showed the higher conductivity. The conductivity results were analyzed in the frame of the three-dimensional variable range hopping model. The results showed that at room temperature the average hopping distance for the fibers was about …
Magnetic Flux Penetration In Polycrystalline Smfeo0.75f0.2as, Zhi W. Lin, Yong Jian Li, Jian G. Zhu, Youguang Guo, Xiaolin Wang
Magnetic Flux Penetration In Polycrystalline Smfeo0.75f0.2as, Zhi W. Lin, Yong Jian Li, Jian G. Zhu, Youguang Guo, Xiaolin Wang
Australian Institute for Innovative Materials - Papers
The recently discovered Fe–As superconducting materials which show high potential ability to carry current due to their low anisotropy have attracted a great number of attentions to understand their superconductivity mechanism and explore their applications. This paper presents a method to synthesis SmFeO0.75F0.20As polycrystalline by hot press in detail. The magnetization at different temperatures and applied fields obtained by a superconducting quantum interference device are also discussed. In addition, the local magnetization process is presented by magneto-optical imaging technique at the conditions of zero-field-cooling and field-cooling. It is found that the collective magnetization process …
Structure, Magnetic, And Thermal Properties Of Nd1-Xlaxcro3 (0 ≤ X ≤ 1.0), Yi Du, Zhenxiang Cheng, Xiaolin Wang, S X. Dou
Structure, Magnetic, And Thermal Properties Of Nd1-Xlaxcro3 (0 ≤ X ≤ 1.0), Yi Du, Zhenxiang Cheng, Xiaolin Wang, S X. Dou
Australian Institute for Innovative Materials - Papers
Perovskite-type Nd1−xLaxCrO3(0 ≤ x ≤1.0) polycrystalline samples were synthesized using solid state reaction. Structural studies indicate that the lattice parameters, metal–oxygen bond lengths, and angles of Nd1−xLaxCrO3 strongly depend on the La content. Two magnetic transition temperatures, Cr3+ antiferromagnetic ordering temperature (TN) and the spin reorientation phase transition temperature (TSRPT), have been observed in the M-T curves. The increase in TN and decrease in TSRPT with increasing x value can be explained by the change in the magnetic interactions due to La …
Synthesis And Electrochemical Studies On Li2cusno4 And Li2cusnsio6 As Negative Electrode In Lithium Batteries, Atef Y. Shenouda, Hua-Kun Liu
Synthesis And Electrochemical Studies On Li2cusno4 And Li2cusnsio6 As Negative Electrode In Lithium Batteries, Atef Y. Shenouda, Hua-Kun Liu
Australian Institute for Innovative Materials - Papers
Li2CuSnO4 and Li2CuSnSiO6 were prepared from their precursors compounds using Brij surfactant and a hydrothermal autoclave method. X-ray diffraction characterization revealed that the crystal structures of these compounds were tetragonal. Scanning electron microscope investigation showed the particle size morphology of Li2CuSnSiO6 is larger than that of Li2CuSnO4. Electrochemical impedance spectroscopy (EIS) explained that Li2CuSnO4 cell had higher charge transfer resistance (Rct = 2936Ω) than that of Li2CuSnSiO6 (38Ω). Furthermore, the reversible specific discharge capacity of the Li2CuSnSiO6 …
Magnetic Properties Of La Doped Bi2femno6 Ceramic And Film, Hongyang Zhao, Hideo Kimura, Zhenxiang Cheng, Xiaolin Wang, Kiyoshi Ozawa, Takashi Nishida
Magnetic Properties Of La Doped Bi2femno6 Ceramic And Film, Hongyang Zhao, Hideo Kimura, Zhenxiang Cheng, Xiaolin Wang, Kiyoshi Ozawa, Takashi Nishida
Australian Institute for Innovative Materials - Papers
We present a comprehensive study of the magnetic properties for La doped Bi2FeMnO6 (LBFM) ceramic and film which was first deposited on (100) SrTiO3 substrate by pulsed laser deposition method. The LBFM film is antiferromagnetic or weak ferrimagnetic at room temperature and it shows clear magnetic anisotropy. But it is not sure whether the spin-glass behavior is present in LBFM film because of the influence from substrate. Compared to the film, LBFM ceramic shows different magnetic properties. It has a lower TN and all the observations indicate that LBFM ceramic shows spin-glass behavior.
Lead-Free Potassium Bismuth Titanate Thin Film With Complex Aurivillius Layer Structure, Zhenxiang Cheng, Xiaolin Wang, Hongyang Zhao, Hideo Kimura
Lead-Free Potassium Bismuth Titanate Thin Film With Complex Aurivillius Layer Structure, Zhenxiang Cheng, Xiaolin Wang, Hongyang Zhao, Hideo Kimura
Australian Institute for Innovative Materials - Papers
A ferroelectric thin film of Aurivillius phase K0.5Bi4.5Ti4O15 (KBT) with a complex bismuth layer-structure was fabricated using the pulsed laser deposition method. The thin film grown on Pt/Ti/SiO2/ Si substrate shows a strong c-axis orientation, as revealed by x-ray diffraction results, and platelike growth of grains. A Pt/KBT/Pt capacitor shows a maximum polarization of about 20 µC/cm2. In addition, the capacitor also shows good fatigue resistance, with a decrease of 14.5% in the remanent polarization after 107 switching cycles. This Aurivillius phase with four layers of TiO6 …
Synthesis And Physical Properties Of Fese1/2 Te1/2 Superconductor, V P. Awana, Anand Pal, Arpita Vajpayee, Monika Mudgel, H Kishan, Mushahid Husain, Rong Zeng, S Yu, Y F. Guo, Y.G Shi, K Yamaura, E Takayama-Muromachi
Synthesis And Physical Properties Of Fese1/2 Te1/2 Superconductor, V P. Awana, Anand Pal, Arpita Vajpayee, Monika Mudgel, H Kishan, Mushahid Husain, Rong Zeng, S Yu, Y F. Guo, Y.G Shi, K Yamaura, E Takayama-Muromachi
Australian Institute for Innovative Materials - Papers
One of the most important properties of very recently reported FeSe based superconductors is the robustness of their superconductivity under applied magnetic field. The synthesis and control of superconductivity in FeSe based compounds is rather a difficult task. Synthesis and physical property characterization for optimized superconductivity of FeSe1/2Te1/2 at 13 K is reported here. The compound crystallized in a tetragonal structure with lattice parameters a=3.8015(2) and c =6.0280(4) Å. Magnetization measurements indicated bulk superconductivity with lower critical field (Hc1) of around 180 Oe. By applying Ginzburg–Landau theory, the Hc2(0) value is estimated to …
Lanthanum Doped Multiferroic Dyfeo3: Structural And Magnetic Properties, Yi Du, Zhenxiang Cheng, Xiaolin Wang, S X. Dou
Lanthanum Doped Multiferroic Dyfeo3: Structural And Magnetic Properties, Yi Du, Zhenxiang Cheng, Xiaolin Wang, S X. Dou
Australian Institute for Innovative Materials - Papers
Lanthanum doped multiferroic DyFeO3 was synthesized by solid state reaction. X-ray diffraction and refinement show that the lattice parameters of Dy1−xLaxFeO3 increase linearly with the La content. Raman spectroscopy reveals that the short-range force constant in Dy1−xLaxFeO3 is decreased by La3+ ion substitution. The spin reorientation phase transition temperature (TSRPT) is observed to decrease along with the doping level. The antiferromagnetic ordering temperature TN of Fe3+ ions is depressed with increasing doping level. Both decreasing TSRPT and decreasing TN indicate that Fe–Dy and Fe–Fe …
Phase Formation And Magnetotransport Of Alkali Metal Doped Na0.75coo2 Thermoelectric Oxide, Priyanka Jood, Germanas Peleckis, Xiaolin Wang, S X. Dou, H Yamauchi, M Karppinen
Phase Formation And Magnetotransport Of Alkali Metal Doped Na0.75coo2 Thermoelectric Oxide, Priyanka Jood, Germanas Peleckis, Xiaolin Wang, S X. Dou, H Yamauchi, M Karppinen
Australian Institute for Innovative Materials - Papers
Synthesis and characterization of bulk NaxCoO2 samples substituted by K and Rb is reported. Phase formation studies revealed a narrow stable region for Na-alkali metal-Co system. Whisker and platelike single crystalline structures have been found to form on the surface of the pellets in case of K doping. All samples were metallic and no characteristic anomaly in R-T curves was observed for Rb doped sample. Magnetoresistance measured has a pronounced positive response only for K-doped and pure NaxCoO2 phases, reaching 11% and 7% at 5 K temperature, respectively.
Giant Magnetic Entropy Change In Colossal Magnetoresistance In La0.7ca0.3mno3 Material In Low Field, Jyotish Debnath, Rong Zeng, Jung Ho Kim, S X. Dou
Giant Magnetic Entropy Change In Colossal Magnetoresistance In La0.7ca0.3mno3 Material In Low Field, Jyotish Debnath, Rong Zeng, Jung Ho Kim, S X. Dou
Australian Institute for Innovative Materials - Papers
The structural, magnetic, and magnetocaloric properties of the manganite La0.7Ca0.3MnO3 have been studied. Change in the giant magnetic entropy was observed without any noticeable magnetic hysteresis but with small thermal hysteresis losses. We observed a first order magnetic phase transition around 251 K. The magnetic entropy change observed in this work is estimated to be 5.27 J/kg K for field changes from 0 to 1.5 T based on magnetization measurements. This value is about twice as large as those for other perovskite manganites and is even larger than for Gd-based magnetic materials at low fields. …
Intergrain Connectivity Of Mgb2 Ceramics Studied By Impedance Analysis, C.C Wang, C Wang, Rong Zeng, S X. Dou
Intergrain Connectivity Of Mgb2 Ceramics Studied By Impedance Analysis, C.C Wang, C Wang, Rong Zeng, S X. Dou
Australian Institute for Innovative Materials - Papers
First, by using of the conventional Rowell analysis, we demonstrated that the addition of nano BN particles can effectively eliminate MgO and pores in MgB2 resulting in a very high density and good connectivity of BN-doped MgB2. Then, another method—low-frequency dielectric impedance analysis—was introduced to characterize the properties of the grain boundaries of MgB2. A comparative impedance study was performed in the frequency range from 100 Hz to 100 MHz on pure and nano BN-doped MgB2. The study revealed some following interesting results: (1) a dielectric resonance around frequency of 108 in both samples …
Superconductivity In Smfe1-Xcoxaso (X=0.0-0.30), V P. Awana, Anand Pal, Arpita Vajpayee, R S. Meena, H Kishan, Mushahid Husain, Rong Zeng, S Yu, K Yamaura, E Takayammuromachi
Superconductivity In Smfe1-Xcoxaso (X=0.0-0.30), V P. Awana, Anand Pal, Arpita Vajpayee, R S. Meena, H Kishan, Mushahid Husain, Rong Zeng, S Yu, K Yamaura, E Takayammuromachi
Australian Institute for Innovative Materials - Papers
We report synthesis, structural details, and magnetization of SmFe1-xCoxAsO with x ranging from 0.0 to 0.30. It is found that Co substitutes fully at Fe site in SmFeAsO in an isostructural lattice with slightly compressed cell. The parent compound exhibited known as the spin density wave (SDW) character is below at around 140 K. Successive doping of Co at Fe site suppressed the SDW transition for x=0.05 and later induced superconductivity for x=0.10, 0.15, and 0.20, respectively, at 14, 15.5, and 9 K. The lower critical field as seen from magnetization measurements is below 200 Oe. …
Magnetic Properties Of Bi2femno6: A Multiferroic Material With Double-Perovskite Structure, Yi Du, Zhenxiang Cheng, S X. Dou, Xiaolin Wang, Hua Zhao, Hideo Kimura
Magnetic Properties Of Bi2femno6: A Multiferroic Material With Double-Perovskite Structure, Yi Du, Zhenxiang Cheng, S X. Dou, Xiaolin Wang, Hua Zhao, Hideo Kimura
Australian Institute for Innovative Materials - Papers
Single phase Bi2FeMnO6 was synthesized on Si substrates by an electrospray method. Three peaks were observed in the temperature dependence of magnetization curve, which is attributed to the inhomogeneous distribution of Fe3+ and Mn3+. The observed magnetic peaks at 150 K, 260 K, and 440 K correspond to orderings of the ferrimagnetic Fe–O–Mn, and antiferromagnetic Mn–O–Mn and Fe–O–Fe, respectively. Heat capacity measurements were carried out to confirm these magnetic transitions. The Debye temperature of Bi2FeMnO6 is 339 K, calculated from Debye–Einstein fitting.
A Novel Multiferroic System: Rare Earth Chromates, Zhenxiang Cheng, Xiaolin Wang, S X. Dou, Hideo Kimura, Kiyoshi Ozawa
A Novel Multiferroic System: Rare Earth Chromates, Zhenxiang Cheng, Xiaolin Wang, S X. Dou, Hideo Kimura, Kiyoshi Ozawa
Australian Institute for Innovative Materials - Papers
In this work, we report on our studies on the multiferroic properties of two rare earth chromates, GdCrO3 and YCrO3. Polycrystalline bulks and thin films have been fabricated using conventional solid state reaction and pulsed laser deposition. Magnetic measurements have revealed that both compounds show weak ferromagnetism below the antiferromagnetic Neel temperature, TN, of 170 and 140 K for GdCrO3 and YCrO3, respectively. However the well-developed ferroelectric polarization electrical field loop was not successfully measured for both samples due to their low resistance. The high conductivity of the samples at room temperature is related …
Superconducting Properties Of Carbonaceous Chemical Doped Mgb2, Wenxian Li, S X. Dou
Superconducting Properties Of Carbonaceous Chemical Doped Mgb2, Wenxian Li, S X. Dou
Australian Institute for Innovative Materials - Papers
The discovery of superconductivity in magnesium diboride (MgB2: 39 K, in January 2001) (Nagamatsu et al., 2001) has generated enormous interest and excitement in the superconductivity community and the world in general, but especially among researchers into superconductivity in non-oxide and boron related compounds.
Nanostructured Electrically Conducting Biofibres Produced Using A Reactive Wet-Spinning Process, Javad Foroughi, Geoffrey M. Spinks, Gordon G. Wallace
Nanostructured Electrically Conducting Biofibres Produced Using A Reactive Wet-Spinning Process, Javad Foroughi, Geoffrey M. Spinks, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
Electrically conducting, robust fibres comprised of both an alginate (Alg) biopolymer and a polypyrrole (PPy) component have been produced using reactive wet-spinning. Using this approach polypyrrole-biopolymer fibres were also produced with single-walled carbon nanotubes (CNTs), added to provide additional strength and conductivity. The fibres produced containing CNTs show a 78% increase in ultimate stress and 25% increase in elongation to break compared to PPy-alginate fibre. These properties are essential for studies involving the use of electrical stimulation to promote nerve regrowth and/or muscle regeneration. The resultant a novel fibres had been evaluated to develop a viable system in incorporating biological …
Pluripotent Human Stem Cells, Blaine W. Phillips, Jeremy M. Crook
Pluripotent Human Stem Cells, Blaine W. Phillips, Jeremy M. Crook
Australian Institute for Innovative Materials - Papers
The need for new and improved pharmacotherapies in medicine, high late-stage compound attrition in drug discovery, and upcoming patent expirations is driving interest by the pharmaceutical industry in pluripotent stem cells for in vitro modeling and early-stage testing of toxicity and target engagement. In particular, human embryonic and induced pluripotent stem cells represent potentially cost-effective and accessible sources of organ-specific cells that foretell in vivo human tissue response to new chemical entities. Here we consider the potential of these cells as novel tools for drug development, including toxicity screening and metabolic profiling. We hold that despite various challenges to translating …
Preparation, Characterization, And Electrochemical Performance Of Li2cusno4 And Li2cusnsio6 Electrodes For Lithium Batteries, Atef Y. Shenouda, Hua-Kun Liu
Preparation, Characterization, And Electrochemical Performance Of Li2cusno4 And Li2cusnsio6 Electrodes For Lithium Batteries, Atef Y. Shenouda, Hua-Kun Liu
Australian Institute for Innovative Materials - Papers
Lithium copper tin silicon oxide was prepared from their precursor compounds using Brij surfactant and different sources of Si such as SiO2, SiC, and Si3N4. A hydrothermal autoclave method was used in the first stage of the preparation. X-ray diffraction characterization revealed that the crystal structures of these compounds were tetragonal. Scanning electron microscope investigation showed that the particle size morphology of Li2CuSnSiO6 is larger than that of Li2CuSnO4. Electrochemical impedance spectroscopy explained that the cell prepared from the Li2CuSnSiO6 electrode using Si3 …
Printing Nanomaterials Using Non-Contact Printing, Charles Mire, Marc In Het Panhuis, Paul D. Calvert, Gordon G. Wallace
Printing Nanomaterials Using Non-Contact Printing, Charles Mire, Marc In Het Panhuis, Paul D. Calvert, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
We report on the use of inkjet, extrusion, and capillary printing of poly(3,4 ethylenedioxythiophene)/ poly(sodium 4-styrene-sulfonate) (PEDOT/PSS) to create structures that could be used in a flexible, implantable bionic device. Resistance values as low as 250 kΩ are demonstrated, with little deviation under as much as 1.5% strain. The results show PEDOT/PSS can be a suitable material for printed bionic devices.
Terahertz Emission From Inp, Stuart Hargreaves, Roger A. Lewis
Terahertz Emission From Inp, Stuart Hargreaves, Roger A. Lewis
Australian Institute for Innovative Materials - Papers
We investigate the generation of THz radiation by the application of ultra-short near-infrared optical pulses to bulk unbiased InP. The THz radiation is detected in the direction of the specular reflection. While the overall emission characteristics are similar to those displayed by InAs under similar excitation conditions, in contrast to InAs, a single-cycle only variation in THz signal, of about ±20%, is observed as the sample is rotated through 360° around the surface normal.
Fluctuation Conductivity Of Single-Crystalline Bafe1.8 Co0.2as2 In The Critical Region, Soo Hyun Kim, Changho Choi, Myung-Hwa Jung, Jung-Bum Yoon, Young-Hun Jo, Xiaolin Wang, X.H Chen, X.F Wang, Sung-Ik Lee, Ki-Young Choi
Fluctuation Conductivity Of Single-Crystalline Bafe1.8 Co0.2as2 In The Critical Region, Soo Hyun Kim, Changho Choi, Myung-Hwa Jung, Jung-Bum Yoon, Young-Hun Jo, Xiaolin Wang, X.H Chen, X.F Wang, Sung-Ik Lee, Ki-Young Choi
Australian Institute for Innovative Materials - Papers
The magnetofluctuation conductivity, called excess conductivity, originated from the forming of the superconducting droplet near to the mean-field transition temperature, was measured for the optimally doped BaFe1.8Co0.2As2 single crystals with a critical temperature, Tc, of 24.6 K. This measurement of the excess conductivity for magnetic fields up to 9 T was compared with the thermodynamic scaling theory in the critical region, in which not only the Gaussian fluctuation but also fourth order terms of the order parameter are included. An analysis of the excess conductivity showed that the superconductivity followed three-dimensional scaling rather …
Magnetic Phase Transition In Mnfep0.5as0.4si 0.1, Jianli Wang, Stewart J. Campbell, O Tegus, E Bruck, S X. Dou
Magnetic Phase Transition In Mnfep0.5as0.4si 0.1, Jianli Wang, Stewart J. Campbell, O Tegus, E Bruck, S X. Dou
Australian Institute for Innovative Materials - Papers
We have carried out a detailed investigation of the magnetic phase transition in MnFeP0.5As0.4Si0.1. Temperature hysteresis has been observed in the variable temperature magnetization curves (Bappl = 0.01 T) with TC W ~ 302 K on warming and TC C ~ 292 K on cooling. The first order nature of this transition in MnFeP0.5As0.4Si0.1 is confirmed by the negative slope obtained from isotherms of M2 versus B/M around the critical temperature. Linear thermal expansion measurements reveal a large volume change, ΔV/V∼8.7×10-3, at the …