phosphorene an unexplored 2d semiconductor with a high hole mobility
phosphorene an unexplored 2d semiconductor with a high hole mobility
... mechanically exfoliated. We find phosphorene to be stable and, unlike graphene, to have an inherent, direct, and appreciable band gap. Our ab initio calculations indicate that the band gap is direct, ... counterpart of layered black phosphorus, which we call phosphorene, as an unexplored p-type semiconducting material. Same as graphene and MoS 2 , single-layer phosphorene is flexible...
Ngày tải lên: 06/05/2014, 08:54
phosphorene an unexplored 2d semiconductor with a high hole mobility
... mechanically exfoliated. We find phosphorene to be stable and, unlike graphene, to have an inherent, direct, and appreciable band gap. Our ab initio calculations indicate that the band gap is direct, ... counterpart of layered black phosphorus, which we call phosphorene, as an unexplored p-type semiconducting material. Same as graphene and MoS 2 , single-layer phosphorene is flexible...
Ngày tải lên: 06/05/2014, 08:58
Báo cáo Y học: Solution structure of the Alzheimer amyloid b-peptide (1–42) in an apolar microenvironment Similarity with a virus fusion domain potx
... transmembrane region of APP, and has the typical amino acid composition of transmembrane helices, i.e. small (Gly and Ala) and hydrophobic (Ile, Leu, Met and Val) residues [36]. The only charged ... be described as a random coil, with only a small population of local nonrandom structures. Overall, these data indicate that bulk water is not suitable for high resolution conform- ational...
Ngày tải lên: 08/03/2014, 09:20
Báo cáo khoa học: Solution structure of an M-1 conotoxin with a novel disulfide linkage pdf
... the dyana algorithm. The outcome was a set of 20 structures with a mean global rmsd of 0.56 ± 0.16 A ˚ and a mean global heavy atom rmsd of 1.30 ± 0.28 A ˚ . Structural refinement was carried ... 273, 283–298. 12 Pearlman DA, Case DA, Caldwell DA, Ross WR, Cheatham TE, DeBolt S, Ferguson D, Seibel G & Kollman P (1995) AMBER, a computer program for applying molecular mechanics...
Ngày tải lên: 30/03/2014, 09:20
an oh maser flare with a strong magnetic field in w75n
... spectral features remained unchanged. All con- stant features are connected with the ultra-compact HII region VLA1 while the variable features are connected with VLA2. Compared to the 1998 map (Slysh ... velocity coverage. All three sets of data have been obtained during the maximum phase of the OH maser flare. The data were reduced in the standard way using NRAO AIPS package. Most of the...
Ngày tải lên: 28/04/2014, 13:15
formation of zno thinfilms consisting of nano-prisms and nano-rods with a high
... investigated. X-ray diffraction results showed that all the deposited films were grown as a polycrystalline wurtzite hexagonal phase with a c-axis preferred, out-of-plane orientation and without unwanted ... sharp without any indication of an interfacial reaction or any formation of amorphous compounds. The SAED pattern showed that the film was c-axis oriented in the substrate normal di...
Ngày tải lên: 06/05/2014, 13:23
Báo cáo khoa học: The chloroplast ClpP complex in Chlamydomonas reinhardtii contains an unusual high molecular mass subunit with a large apical domain doc
... plants. ClpP genes are also found in Cyanobacteria [22] and in the genome of the Cyanophora cyanelle, an ancestral chloroplast. In the green alga Chlamydomonas reinhardtii and in vascular plants, ... as Cryptosporidium parvum, an Apicomplexan that has lost its apicoplast, also has lost both ClpP and ClpR [38,39]. In any event, apicomplexan ClpP appears as an interes- ting target for the...
Ngày tải lên: 16/03/2014, 23:20
Báo cáo Y học: Functional studies of the Synechocystis phycobilisomes organization by high performance liquid chromatography on line with a mass spectrometer docx
... radient, showed an HPLC chromatogram abundant in hydrophilic proteins such as linkers and a significant amount of a- and b-phycocyan ins, and only traces of the allophycocyanins. On the contrary, ... sucrose gradient bands, HPLC analysis revealed that a- andb-ph ycocyanins are the most abundant components. Their presence is particularly prevalent in the heavier bands (bands 3–5), a nd...
Ngày tải lên: 08/03/2014, 16:20
Báo cáo khoa học: Thermosynechoccus elongatus DpsA binds Zn(II) at a unique three histidine-containing ferroxidase center and utilizes O2 as iron oxidant with very high efficiency, unlike the typical Dps proteins ppt
... 10 5 m )1 Æcm )1 , calculated with protparam (http://www.expasy.org). Removal of the His-tag A factor Xa cleavage site was created between the last amino acid (valine) and the His-tag. Cleavage by factor Xa occurs ... Havukainen H, Haataja S, Kauko A, Pulliainen AT, Salminen A, Haikarainen T, Finne J & Papageorgiou AC (2008) Structural basis of the zinc- and terbium- mediated inhibi...
Ngày tải lên: 15/03/2014, 09:20
Detection of an uncharged steroid with a silicon nanowire field effect transistor
... Farre, R. Ventura, Gas chromatography–mass spectrom- etry method for the analysis of 19-nor-4-androstenediol and metabolites in human plasma: Application to pharmacokinetic studies after oral ... was removed with HF solution. After defining the contact pad patterns, a stack of Ti (10 nm) and Au (100 nm) was then evaporated with a ther- mal evaporator and lifted off to create the contac...
Ngày tải lên: 16/03/2014, 15:23