User profiles for author:Guangyu author:Xu

Xu Guangyu

Assistant Professor, UMass Amherst
Verified email at umass.edu
Cited by 506

Robust bi-stable memory operation in single-layer graphene ferroelectric memory

…, S Lee, TK Chung, M Wang, C Zeng, G Xu… - Applied Physics …, 2011 - aip.scitation.org
With the motivation of realizing an all graphene-based circuit for low power, we present a
reliable nonvolatile graphene memory device, single-layer graphene (SLG) ferroelectric field-
effect transistor (FFET). We demonstrate that exfoliated single-layer graphene can be …

Effect of Spatial Charge Inhomogeneity on 1/f Noise Behavior in Graphene

G Xu, CM Torres Jr, Y Zhang, F Liu, EB Song… - Nano …, 2010 - ACS Publications
Scattering mechanisms in graphene are critical to understanding the limits of signal-to-noise
ratios of unsuspended graphene devices. Here we present the four-probe low-frequency
noise (1/f) characteristics in back-gated single layer graphene (SLG) and bilayer graphene …

On silico peptide microarrays for high-resolution mapping of antibody epitopes and diverse protein-protein interactions

JV Price, S Tangsombatvisit, G Xu, J Yu, D Levy… - Nature medicine, 2012 - nature.com
We developed a new, silicon-based peptide array for a broad range of biological
applications, including potential development as a real-time point-of-care platform. We used
photolithography on silicon wafers to synthesize microarrays (Intel arrays) that contained …

[HTML][HTML] Electrophoretic and field-effect graphene for all-electrical DNA array technology

G Xu, J Abbott, L Qin, KYM Yeung, Y Song… - Nature …, 2014 - nature.com
Field-effect transistor biomolecular sensors based on low-dimensional nanomaterials boast
sensitivity, label-free operation and chip-scale construction. Chemical vapour deposition
graphene is especially well suited for multiplexed electronic DNA array applications, since …

Effects of compound K on hyperglycemia and insulin resistance in rats with type 2 diabetes mellitus

S Jiang, D Ren, J Li, G Yuan, H Li, G Xu, X Han, P Du… - Fitoterapia, 2014 - Elsevier
Compound K (CK) is a final metabolite of panaxadiol ginsenosides from Panax ginseng.
Although anti-diabetic activity of CK has been reported in recent years, the molecular
mechanism of CK in the treatment of diabetes mellitus remains unclear. In the present …

Edge effect on resistance scaling rules in graphene nanostructures

G Xu, CM Torres Jr, J Tang, J Bai, EB Song… - Nano …, 2011 - ACS Publications
We report an experimental investigation of the edge effect on the room-temperature
transport in graphene nanoribbon and graphene sheet (both single-layer and bilayer). By
measuring the resistance scaling behaviors at both low-and high-carrier densities, we show …

Catechol–bisphosphonate conjugates: New types of chelators for metal intoxication therapy

H Ding, G Xu, J Wang, Y Zhang… - … An International Journal …, 2004 - Wiley Online Library
Three new types of bisphosphonates conjugated with catechol were synthesized to explore
their possibilities for the treatment of metal intoxication.© 2004 Wiley Periodicals, Inc.
Heteroatom Chem 15: 549–555, 2004; Published online in Wiley InterScience (www …

Low-frequency noise in top-gated ambipolar carbon nanotube field effect transistors

G Xu, F Liu, S Han, K Ryu, A Badmaev, B Lei… - Applied Physics …, 2008 - aip.scitation.org
Low-frequency noise of top-gated ambipolar carbon nanotube field effect transistors (CNT-
FETs) with aligned CNT growth onto the quartz substrate is presented. The noise of top-
gated CNT-FETs in air is lower than that of back-gated devices, and is comparable to that of …

A draft sequence of the rice genome (Oryza sativa L. ssp. indica)

…, X Feng, P Cui, X Li, H Wang, X Xu, W Zhai, Z Xu… - …, 2002 - science.sciencemag.org
We have produced a draft sequence of the rice genome for the most widely cultivated
subspecies in China, Oryza sativa L. ssp. indica, by whole-genome shotgun sequencing.
The genome was 466 megabases in size, with an estimated 46,022 to 55,615 genes …

Diffusion and distribution studies of photoacid generators: ion beam analysis in lithography

…, J Opitz, RD Allen, G Barclay, G Xu - Journal of …, 1999 - jstage.jst.go.jp
The interaction of the photoacid generator with the polymeric matrix plays an extremely
critical role in the effectiveness of a good photoresist. These interactions have been studied
previously both in terms of photoacid generator characteristics as well as the effect of the …