Accurate Prediction of the Magnetic Ordering Temperature of Ultralow-Temperature Magnetic Refrigerants.

Adiabatic demagnetization refrigeration is known to be the only cryogenic refrigeration technology that can achieve ultralow temperatures (≪1 K) at gravity-free conditions. The key indexes to evaluate the performance of magnetic refrigerants are their magnetic entropy changes (-Δ) and magnetic ordering temperature (). Although, based on the factors affecting the -Δ of magnetic refrigerants, one has been able to judge if a magnetic refrigerant has a large -Δ, how to accurately predict their remains a huge challenge due to the fact that the of magnetic refrigerants is related to not only magnetic exchange but also single-ion anisotropy and magnetic dipole interaction.

Three new griseofulvin derivatives from .

Three new griseofulvin derivatives, griseofulvinoside A-C (-), were isolated from the ethyl acetate extract of the solid fermentation product of . Their structures were elucidated based on extensive spectroscopic data analysis of MS, 1D and 2D NMR. The antifungal activities of new compounds were evaluated against four phytopathogenic fungi , and all test compounds demonstrated inhibitory effects.

A Doped Lanthanide-Based Coordination Polymer Exhibiting High Relative Sensitivity to Ratiometric Luminescent Thermometers at 440 K.

Ratiometric luminescent thermometers with excellent performance often require the luminescent materials to possess high thermal stability and relative sensitivity (). However, such luminescent materials are very rare, especially in physiological (298-323 K) and high-temperature (>373 K) regions. Here we report the synthesis and luminescent property of [TbEu(pfbz)(phen)Cl] (), which not only exhibits high in physiological temperature but also has a up to 7.

Magnetocaloric Effect and Thermal Conductivity of a 3D Coordination Polymer of [Gd(HCOO)(CO)].

A 3D coordination polymer, [Gd(HCOO)(CO)] was prepared. Its magnetocaloric effect (MCE) (32.7 J K kg at 2 K and 2 T) is significantly larger than that of commercial GdGaO (GGG) (14.

Lanthanide-Titanium Oxo Clusters as the Luminescence Sensor for Nitrobenzene Detection.

A luminescent lanthanide-titanium oxo cluster of EuTi(μ-O)(μ-O)(phen)(tbza)·4CHCN (, EuTi-phen-tbza, phen = 1,10-phenanthroline, Htbza = 4--butylbenzoic acid) was prepared through the reaction of phen, Htbza, Eu(Ac)·HO, and Ti(OPr) in acetonitrile. Its overall absolute quantum yield is 65.4% in solid state and 30.

Purification, characterization and molecular cloning of chymotrypsin inhibitor peptides from the venom of Burmese Daboia russelii siamensis.

One novel Kunitz BPTI-like peptide designated as BBPTI-1, with chymotrypsin inhibitory activity was identified from the venom of Burmese Daboia russelii siamensis. It was purified by three steps of chromatography including gel filtration, cation exchange and reversed phase. A partial N-terminal sequence of BBPTI-1, HDRPKFCYLPADPGECLAHMRSF was obtained by automated Edman degradation and a Ki value of 4.

Trypsin and chymotrypsin inhibitor peptides from the venom of Chinese Daboia russellii siamensis.

Two trypsin inhibitors and one chymotrypsin inhibitor from Chinese Daboia russellii siamensis venom, denoted as CBPTI-1, CBPTI-2 and CBPTI-3 were purified, characterized and cloned from lyophilized venom-derived cDNA libraries. The N-terminus of CBPTI-1 was modified and not amenable to Edman degradation sequencing, however an internal partial sequence was found to be SGRCRGHLRRIYYNPDSNKCE. The N-termini of CBPTI-2 and CBPTI-3 were unmodified and their partial sequences were established as HDRPTFCNLAPESGRCRAH and HDRPKFCYLPADPGECMAYIRSFYYDS respectively.

[Major constituent proteins in donkey hide and their interaction].

Objective: To analyze the constituent proteins in donkey hide, the key ingredient for Ejiao, an important traditional Chinese medicine for the blood-related conditions, in hope to eventually decipher the biochemical mechanism behind Ejiao's prominent medicinal efficacy.

Method: Two methods were employed to extract proteins in donkey skin. One used TriPure isolation reagent to extract the total proteins in donkey skin.