scholarly journals Quasi Two Dimensional Deposited Silver Nanowires for Nano Scale Circuitry in an Ultrathin Layer System

2016 ◽  
Author(s):  
Jing Wang ◽  
Hao Zhu
Keyword(s):  
Silver Nanowires ◽  
Two Dimensional ◽  
Layer System ◽  
Nano Scale ◽  
Ultrathin Layer

Two-dimensional resonant triad interactions in a two-layer system

2020 ◽  
Vol 907 ◽  
Author(s):  
Wooyoung Choi ◽  
Malik Chabane ◽  
Tore Magnus A. Taklo
Keyword(s):  
Two Dimensional ◽  
Layer System ◽  
Triad Interactions

Abstract

scholarly journals Nano-Scale Hydroxyapatite: Synthesis, Two-Dimensional Transport Experiments, and Application for Uranium Remediation

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
S. R. Kanel ◽  
T. P. Clement ◽  
M. O. Barnett ◽  
M. N. Goltz
Keyword(s):  
Complete Removal ◽  
Saturated Porous Media ◽  
Two Dimensional ◽  
Tracer Transport ◽  
Flow Conditions ◽  
X Ray Diffraction ◽  
Nano Scale ◽  
Groundwater Systems ◽  
Transport Patterns

Synthetic nano-scale hydroxyapatite (NHA) was prepared and characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods. The XRD data confirmed that the crystalline structure and chemical composition of NHA correspond to Ca5OH(PO4)3. The SEM data confirmed the size of NHA to be less than 50 nm. A two-dimensional physical model packed with saturated porous media was used to study the transport characteristics of NHA under constant flow conditions. The data show that the transport patterns of NHA were almost identical to tracer transport patterns. This result indicates that the NHA material can move with water like a tracer, and its movement was neither retarded nor influenced by any physicochemical interactions and/or density effects. We have also tested the reactivity of NHA with 1 mg/L hexavalent uranium (U(VI)) and found that complete removal of U(VI) is possible using 0.5 g/L NHA at pH 5 to 6. Our results demonstrate that NHA has the potential to be injected as a dilute slurry forin situtreatment of U(VI)-contaminated groundwater systems.

Repeatable and High-Efficiency Patterning of Silver Nanowires on PDMS Using Micromilled Aluminum Molds

2019 ◽  
Vol 7 (4) ◽  
Author(s):  
Rick Helgason ◽  
Ayan Choudhury ◽  
Yongjun Lai
Keyword(s):  
Efficient Method ◽  
Strain Gauge ◽  
High Efficiency ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Two Dimensional ◽  
Wide Range ◽  
Sharp Edges

Abstract We present an inexpensive, repeatable, and efficient method of patterning silver nanowires onto polydimethylsiloxane (PDMS) using a mold-based approach. A micromilling machine is used to prepare an aluminum mold with a raised pattern so that PDMS cured in these molds is imprinted with the design. A solution of silver nanowires and ethanol can then be injected into the pattern. This method can be used to pattern silver nanowires onto PDMS in any two-dimensional (2D) layout, meaning it can be extended to produce a wide range of PDMS/silver nanowire-based sensors and devices. We demonstrate this by the development of two separate patterns. An intricate logo is developed in order to demonstrate the capability of patterning curved and sharp edges, and a strain gauge is developed in order to demonstrate a functional device.

Well-controlled silver nanowire/graphene hybrid from full solution process

2016 ◽  
Vol 51 (8) ◽  
pp. 1149-1154 ◽  
Author(s):  
Jeong Eon Park ◽  
Dong Hack Suh
Keyword(s):  
Mass Production ◽  
Silver Nanowires ◽  
Solution Process ◽  
Silver Nanowire ◽  
Ultrasonic Power ◽  
Two Dimensional ◽  
One Dimensional ◽  
Conductive Materials ◽  
Full Solution

The surface of a one-dimensional silver nanowire was covered with amphiphilic materials, N-(2-aminoethyl)-3a-hydroxy-5b-cholan-24-amide, and patched with two-dimensional graphene to form individually controlled hybrid. Graphene was prepared from ultrasonic in o-dichlorobenzene without any additives. As N-(2-aminoethyl)-3a-hydroxy-5b-cholan-24-amide between silver nanowires and graphene tightly held each other, silver nanowire was individually covered with graphene without introducing ultrasonic power, the necessary process to evenly mix silver nanowires and graphene but lead to damage and oxidize silver nanowires. Although the quality of graphene was inferior, the properties of hybrid were superior compared with pristine silver nanowire/graphene except introducing N-(2-aminoethyl)-3a-hydroxy-5b-cholan-24-amide. All processes to form the hybrid were carried out in solution. Therefore, this makes the processes less expensive and more useful and opens up opportunities for the mass production for conductive materials.

scholarly journals Stitching together a nm thick peptide-based semiconductor sheet using UV light

2020 ◽  
Author(s):  
Alain Bolaño Alvarez ◽  
Marcelo Pino ◽  
Steffen B. Petersen ◽  
Gerardo Daniel Fidelio
Keyword(s):  
Uv Light ◽  
Peptide Bond ◽  
Electric Properties ◽  
Neural Interfaces ◽  
Two Dimensional ◽  
Brewster Angle Microscopy ◽  
Surface Stability ◽  
Nano Scale ◽  
Amphiphilic Molecules ◽  
Current Voltage

AbstractLangmuir monolayer allows for two-dimensional nano-scale organisation of amphiphilic molecules. We here report that two retro-isomers peptides carefully designed to form stable monolayers showed semiconductor-like behaviour. Both exhibit the same hydrophobicity and surface stability but differ in the lateral conductivity and current-voltage due to the asymmetric peptide bond backbone orientation at the interface. The two peptides contain several tyrosines that allow for UVB-induced lateral crosslinking of tyrosines in neighboring peptide molecules. UVB-light induces changes in the lateral conductivity and currentvoltage behaviour as well as monolayer heterogeneity monitored by Brewster angle microscopy that depends on the peptide bond backbone orientation and crosslinking of tyrosines. Our results indicate that one may design extended nano-sheets with particular electric properties, reminiscent of semiconductors. We propose to exploit such properties for biosensing and neural interfaces.

The Anderson transition

1975 ◽  
Vol 345 (1641) ◽  
pp. 169-205 ◽  
Keyword(s):  
Electrical Properties ◽  
Fermi Energy ◽  
Inversion Layer ◽  
Two Dimensional ◽  
Layer System ◽  
Metal Insulator Transition ◽  
Mobility Edge ◽  
Metal Insulator ◽  
Anderson Transition ◽  
Extended States

An outline is given of the electrical properties expected in a disordered solid or fluid which shows a metal-insulator transition of Anderson type. This is one in which the Fermi energy of the electrons passes through a mobility edge separating extended states from states localized by disorder, as the composition or some other parameter is changed. Some of the experimental evidence for this kind of transition is described. In particular, a relatively detailed account is given of the two dimensional inversion layer system in which the relevant parameters may be varied in a single device by direct electrical means.

Properties of nano-scale soliton-like excitations in two-dimensional lattice layers

2011 ◽  
Vol 240 (24) ◽  
pp. 1954-1959 ◽  
Author(s):  
Alexander P. Chetverikov ◽  
Werner Ebeling ◽  
Manuel G. Velarde
Keyword(s):  
Two Dimensional ◽  
Dimensional Lattice ◽  
Nano Scale

Nano-Scale Effects in the Sliding and Rolling of a Cylinder on a Substrate

2005 ◽  
Vol 72 (5) ◽  
pp. 633-640 ◽  
Author(s):  
O¨. T. Sari ◽  
G. G. Adams ◽  
S. Mu¨ftu¨
Keyword(s):  
Contact Problem ◽  
Scale Effects ◽  
Cylindrical Body ◽  
Friction Stress ◽  
Two Dimensional ◽  
Nano Scale ◽  
Sliding Motion ◽  
Tangential Forces ◽  
Applied Forces ◽  
The Subject

The behavior of a nano-scale cylindrical body (e.g., a fiber), lying on a substrate and acted upon by a combination of normal and tangential forces, is the subject of this investigation. As the scale decreases to the nano level, adhesion becomes an important issue in this contact problem. Thus, this investigation treats the two-dimensional plane strain elastic deformation of both the cylinder and the substrate during a rolling/sliding motion, including the effect of adhesion using the Maugis model. For the initiation of sliding, the Mindlin approach is used, whereas for rolling, the Carter approach is utilized. Each case is modified for nano-scale effects by including the effect of adhesion on the contact area and by using the adhesion theory of friction for the friction stress. Analytical results are given for the normal and tangential loading problems, including the initiation of sliding and rolling in terms of dimensionless quantities representing adhesion, cylinder size, and applied forces.

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