Results 41 to 50 of about 396,952 (238)

Mesenchymal Stem Cell in Pancreatic Islet Transplantation

Biomedicines, 2023
Pancreatic islet transplantation is a therapeutic option for achieving physiologic regulation of plasma glucose in Type 1 diabetic patients. At the same time, mesenchymal stem cells (MSCs) have demonstrated their potential in controlling graft rejection,
Serena Barachini, Letizia Biso, Shivakumar Kolachalam, Iacopo Petrini, Roberto Maggio, Marco Scarselli, Biancamaria Longoni   +6 more
doaj   +1 more source

Field-effect transistors assembled from functionalized carbon nanotubes

, 2006
We have fabricated field effect transistors from carbon nanotubes using a novel selective placement scheme. We use carbon nanotubes that are covalently bound to molecules containing hydroxamic acid functionality.
Appenzeller J., Auvray S., Avouris, Avouris Ph., Bachtold A., Bahr J. L., Banerjee S., Bethune D. S., Bonard J. M., Chen J., Chen Z., Cheng C., Choi K. H., Collins P. G., Cui Y., Dai H., Derycke V., Duan X., Dyke C. A., Folkers J. P., Hannon J. B., Heald C. G. R., Huang Y., Iijima S., Javey A., Jin S., Johnston D. E., Kataura H., Klinke C., Kooi S. E., Lee S. W., Lee Y. S., Lin Y. M., Martel R., McEuen P. L., Mirkin C. A., Morales A. M., Niyogi S., Perebeinos V., Radosavljevic M., Spataru C. D., Wind S. J.   +41 more
core   +1 more source

Autonomous propulsion of carbon nanotubes powered by a multienzyme ensemble [PDF]

, 2008
Covalent attachment of the enzymes glucose oxidase and catalase to carbon nanotubes enables the tandem catalytic conversion of glucose and H2O2 formed to power autonomous movement of the nanotubes.
Browne, Wesley R.,, Feringa, Ben L.,, Pantarotto, Davide,   +2 more
core   +3 more sources

Absence of Additional Stretching‐Induced Electron Scattering in Highly Conductive Cross‐linked Nanocomposites with Negligible Tunneling Barrier Height and Width

Advanced Science
The intrinsic resistance of stretchable materials is dependent on strain, following Ohm's law. Here the invariable resistance of highly conductive cross‐linked nanocomposites over 53% strain is reported, where additional electron scattering is absent ...
C. Muhammed Ajmal, Juyeong Jeong, Seongsu Cheon, M. K. Majee, Heejun Yang, Seunghyun Baik   +5 more
doaj   +1 more source

Pressure Welding Through a Layer of Hydrocarbon Substance: Physical Processes of a Diffusion Joint Formation

Успехи физики металлов, 2021
The article deals with the hypothesis on the diffusion-processes’ activation mechanisms during pressure welding with a pulsed current through the hydrocarbon-substance layer.
O. V. Jartovsky, O. V. Larichkin
doaj   +1 more source

Scanned Probe Microscopy of Electronic Transport in Carbon Nanotubes

, 2000
We use electrostatic force microscopy and scanned gate microscopy to probe the conducting properties of carbon nanotubes at room temperature. Multi-walled carbon nanotubes are shown to be diffusive conductors, while metallic single-walled carbon ...
A. Bachtold, A. Bachtold, A. Thess, A. Zettl, C. Schönenberger, C. Schönenberger, C. T. White, Erik H. Anderson, H. Dai, J. E. Stern, J. Kong, J. Kong, K. Tsukagoshi, L. Langer, M. A. Eriksson, M. Bockrath, M. Bockrath, M. Büttiker, M. Forero, M. P. Anantram, M. S. Fuhrer, M. S. Fuhrer, P. Collins, P. J. de Pablo, P. L. McEuen, Paul L. McEuen, R. Martel, S. Frank, S. J. Tans, S. J. Tans, S. Plyasunov, T. Ando, Y. Martin, Z. Yao, Z. Yao   +34 more
core   +1 more source

Van der Waals interactions of parallel and concentric nanotubes [PDF]

, 2002
For sparse materials like graphitic systems and carbon nanotubes the standard density functional theory (DFT) faces significant problems because it cannot accurately describe the van der Waals interactions that are essential to the carbon-nanostructure ...
Elsebeth Schröder, Girifalco, Gradshteyn, Hult, Hult, Lundqvist, Per Hyldgaard, Rydberg, Schröder   +8 more
core   +2 more sources

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

PROPIEDADES CUASI-ESTÁTICAS DE NANOESTRUCTURAS UNIDIMENSIONALESDE PERMALLOY: UN ANÁLISIS COMPARATIVO EN FUNCIÓN DE PARÁMETROS GEOMÉTRICOS

Anales (Asociación Física Argentina), 2022
The present study describes the magnetic properties of nanotubes and nanowires of Permalloy through micromagnetic simulations. These properties are evaluated as a function of the external diameters of such one-dimensional nanostructures when the magnetic
S. Levis, A. Villegas, J. Escrig, N. Bajales Luna, D. M. Arciniegas Jaimes   +4 more
doaj   +1 more source

Thermal conductivity of deformed carbon nanotubes

, 2011
We investigate the thermal conductivity of four types of deformed carbon nanotubes by using the nonequilibrium molecular dynamics method. It is reported that various deformations have different influence on the thermal properties of carbon nanotubes. For
Bao-Quan Ai, Dong-Qin Zheng, Fabian Pease R., Mao-Ping Zhang, Rafii-Tabar H., Wei-Rong Zhong   +5 more
core   +1 more source