The 伪-helix has a great advantage as a topology for metal-ion binding, in that amino acid side chains four residues apart in the sequence are mutually axially disposed to create a bidentate macrocyclic ligand system (Figure 1). Metal-ion stabilization of helical architectures has been ...
These results show that saccharide binding activity of concanavalin A does not require a transition metal ion at pH 7.2; only Ca(2+) is required. At pH values near 5, where most previous studies have been carried out, both a transition metal ion and Ca(2+) are necessary. 展开 关键词:...
The bonding and electronic structure in one- and two-dimensional copper–vanadium sulfides, based on tight binding band calculations, has been studied. Theoretical evidence for the existence of weak donor–acceptor interactions from the d10 copper(I) ion toward the empty d orbitals of VV is discu...
Microparticles consisting of the thermal responsive polymer N-isopropyl acrylamide (polyNIPAM), a metal ion-binding ligand and a fluorophore pair that undergoes fluorescence resonance energy transfer (FRET) have been prepared and charact... Osambo,John,Seitz,... 被引量: 4发表: 2013年 TCA self-...
Next, we use transition metal ion fluorescence resonance energy transfer (tmFRET), as a highly sensitive method for direct measurements of conformational changes in response to K þ and show that K þ inhibits Na þ and substrate binding possibly by binding an outward-closed conformation of ...
NMR Studies of Zinc, Copper, and Iron Binding to Histidine, the Principal Metal Ion Complexing Site of Amyloid-β Peptide Amyloid-beta (Abeta), the major component of senile plaques in Alzheimer's disease, is known to complex transition metal ions mainly through histidine resi... NG Nair,G...
Cobalt iondisplays the most stable metal–cyanide complexes compared to other ions. Hong and his coworkers report afluorescent probebased on cobalt(II) biscoumarinylsalen complex (Fig. 4). Upon binding to cyanide in CH3CN,fluorescence intensityof the complex significantly increased owing to the in...
Structure of Porphyrin TPPS4 and Its Interaction with Metal Ions as Elucidated by 1H NMR and UV-Visible Spectra transition-metal ions show stronger binding capacity than alkali and alkali-earth metal ions; the relative stabilities of TPPS4-metal ion complexes can be... Zhiyan,Song,Adegboye,.....
1) transition metal ion doping 过渡金属离子掺杂 例句>> 2) transition metal doping 过渡金属掺杂 1. Thetransition metal dopingimproved the dynamic oxygen storage capacity. 研究表明,过渡金属掺杂后,改善了储放氧性能;过渡金属掺杂后大大改善了氧的迁移特性,使WGS反应起燃温度降低;过渡金属掺杂后,对SR反应的...
tunable sold-state laser is tunable laser crystals;The stability,tunable range and quality of the laser is decided by the physics and optical characters of the crystal.The optical spectroscopic characters,laser character and advances of transition metal ion-doped crystals for tunable~laser is reviewed...