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Electrons in Two Dimensions: Quantum Corrals and Semiconductor Microstructures
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04 Dec 2007 | | Contributor(s):: Eric J. Heller
The images generated by a scanning tunneling microscope are iconic. Some of the most famous are Don Eigler’s quantum corrals, which reveal not only the guest atoms on a surface but especially the interference patterns of electrons shuttling back and forth along the surface. To understand the...
New Dimension in Performance: Harnessing 3D Integration Technology
29 Nov 2007 | | Contributor(s):: Kerry Bernstein
Despite generation on generation of scaling, computer chips have remained essentially 2-dimensional. Improvements in on-chip wire delay, and in the total number of inputs and outputs has not been able to keep up with improvements to the transistor, and its getting harder and harder to hide it! 3D...
On the Rise of an Electronic Species: Thoughts on the Impending Singularity
The human brain is vastly more complex that our best supercomputers; yet it can be argued that both systems evolve towards common underlying solutions to fundamental compute problems. Biologically-inspired electronic technologies already are enabling new products, and inversely, nano-electronics...
KIST/PU A bi-functional block copolymer hydrogels and micelles for protein and drug delivery
28 Nov 2007 | | Contributor(s):: Doo Sung Lee
Novel biodegradable & injectable poly(Î²-amino ester)-poly(Îµ-caprolactone)-poly(ethylene glycol)-poly(Îµ-caprolactone)-poly(Î²-amino ester)(PAE-PCL-PEG-PCL-PAE) bi-functional, pH/temperature-sensitive, block copolymer hydrogels were prepared and applied to protein and drug delivery. In this...
NCN Nanoelectronics: Research Seminars
28 Nov 2007 |
Many research seminars are available on the nanoHUB. Listed below are a few that discuss new device possiblities.
MCW07 Modeling Molecule-Assisted Transport in Nanotransistors
06 Nov 2007 | | Contributor(s):: Kamil Walczak
Molecular electronics faces many problems in practical device implementation, due to difficulties with fabrication and gate-ability. In these devices, molecules act as the main conducting channel. One could imagine alternate device structures where molecules act as quantum dots rather than...
MCW07 Impact of Porphyrin Functional Groups on InAs Gas Sensors
05 Nov 2007 | | Contributor(s):: Michael Garcia
Porphyrin molecules are often used for sensor engineering to improve sensitivity and selectivity to specific analytes. It is important to understand how the porphyrin HOMO-LUMO levels deplete surface states during functionalization of solid state sensors. Additionally, the effect of...
Microscale Ionic Wind for Local Cooling Enhancement
26 Oct 2007 | | Contributor(s):: David B Go
As the electronics industry continues to develop small, highly functional, mobile devices, new methods of cooling are required to manage the thermal requirements of the not only the chip but the entire system. Comfortable skin temperatures, small form factors, and limited power consumption are...
Hexagonal Prism Blue Diode Laser Using Whispering Gallery Mode (WGM) Resonances
23 Oct 2007 | | Contributor(s):: sangho kim
Semiconductor lasers have many important applications, including communication technologies, optical storage, printing, and molecular detection. The range of applications could be broadened significantly if the lasers could be made smaller and with lower threshold currents. Today’s in-plane...
KIST/PU Multiplex Detection of Cell Surface Markers Using Plasmonic Sensors
23 Oct 2007 | | Contributor(s):: Joseph M K Irudayaraj
Gold nanorod molecular probes (GNrMPs) were designed and fabricated for multiplex identification of cell surface markers in HBECs. Cells were probed directly using dark field microscopy integrated with a spectral imager for simultaneous detection of up to three surface markers. The...
KIST/PU Design and Performance of Bioresponsive Nanocarriers with Tunable Reactivity for Drug and Gene Delivery
23 Oct 2007 | | Contributor(s):: Dave Thompson
Our lab has focused on the development of bioresponsive nanocarriers that are designed to release their cargo upon entry into acidic environments such as those found in cellular endosomes and sites of poor circulation. Computational methods have been used to design vinyl ether lipids of varying...
KIST/PU Bridging Nonlinear Optical Imaging and Nanotechnology with Medicine
23 Oct 2007 | | Contributor(s):: Ji-Xin Cheng
Our interdisciplinary research develops and utilizes state-of-the-art optical imaging techniques and nanotechnology to tackle compelling biomedical problems highly related to human health. Research in my group covers diagnosis, treatment, and mechanistic study of diseases.
KIST/PU Phage Display Selection of Tissue-Specific Homing Peptides and their Theragnostic Applications
23 Oct 2007 | | Contributor(s):: Byung-Heon Lee
Several homing peptides that are specific to tumor cells, artherosclerotic plaques, stroke lesion, apoptotic cells and phosphatidylserine have been isolated by phage display in our laboratory. For example, the Bld-1 peptide is specific to bladder tumor cells and the AP-1 to atherosclerotic...
KIST/PU Tumor-Homing Chitosan-Based Nanoparticles for Cancer Theragnosis; Imaging, Drug Delivery and Therapy
23 Oct 2007 | | Contributor(s):: Ick Chan Kwon
We have prepared self-assembled polymeric drug carriers containing fluorophore and loaded drugs for theragnostic imaging of tumors. This new type of polymeric drug carriers visualizes the accumulation of carriers at tumor sites, and evaluates therapeutic efficacies, and thereby providing an...
KIST/PU Introduction to Global Research Laboratory (GRL) Program: Molecular Imaging and Nanomedicine for Theragnosis using Nano-Bio Materials
23 Oct 2007 | | Contributor(s):: Kui Won Choi
The Global Research Laboratory (GRL) program was initiated by the Korea Foundation for International Cooperation of Science and Technology (KICOS) in 2006. The GRL program has been designed to develop fundamental and original technologies through international collaborative research between...
Computing the Horribleness of Soft Condensed Matter
19 Oct 2007 | | Contributor(s):: Eric Jakobsson
A great triumph of computer simulations 40 years ago was to make the liquid state of matter understandable in terms of physical interactions between individual molecules. Prior to the first simulations of liquid argon and liquid water in the 1960's, there was no quantitatively rigorous molecular...
Conquering Surface Plasmon Resonance Loss in Metallic Nanostructures
16 Oct 2007 | | Contributor(s):: Mikhail A. Noginov
We have observed the compensation of loss in metal by gain indielectric in the mixture of Ag aggregate and rhodamine 6G dye. Thedemonstrated six-fold enhancement of the Rayleigh scattering is the evidence of the enhancement of the localized surface plasmon (SP) resonance. In the attenuated total...
Energy-level Alignment of Aryl Thiols Chemisorbed on Metal Surfaces: Implications for Molecular Electronic Junctions
27 Sep 2007 | | Contributor(s):: Roger D. van Zee
Charge-transport through the interface is a key part of the behavior of any electronic junction. One interface property important to molecular-electronic junctions is the energetic mismatch between the conductive levels of the molecule and the Fermi level of the contact material. This seminar...
Renewable Energy from Synthetic Biology
25 Sep 2007 | | Contributor(s):: Jay D. Keasling
Jay Keasling, Co-Leader of The Helios Project, is the Director of the Physical Biosciences Division at Berkeley Lab, and a groundbreaking researcher in the new scientific field of synthetic biology. He is a UC Berkeley professor of Chemical and Bioengineering, and founder of Amyris...
Toward Anticipatory Governance
25 Sep 2007 | | Contributor(s):: David Guston
The Center for Nanotechnology in Society at Arizona State University (CNS-ASU) is an NSF-funded center, created in October 2005, for research, education and outreach on the societal aspects of nano-scale science and engineering (NSE). CNS-ASU involves the collaboration of scores of faculty,...