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As a robust radioanalytical method for tracking carbonaceous particulates in vivo, polycyclic aromatic hydrocarbons from diesel exhaust were labeled with a radioactive-iodine-tagged pyrene analogue. Single-photon emission computed tomography and biodistribution studies showed high uptake and slow clearance of this matter in the respiratory system, which may underlie its severe toxicity. [ABSTRACT FROM AUTHOR]

We herein report a new bioremediation method using a radiation-resistant bacterium. Biogenic gold nanomaterial-containing Deinococcus radiodurans R1 showed excellent capability for the removal of radioactive iodine (＞99%) in several aqueous solutions. These observations demonstrated that our remediation system would be efficiently applied to the treatment of radioactive wastes. [ABSTRACT FROM AUTHOR]

Vinylene carbonate (VC) has been the best performing solid electrolyte interphase (SEI) additive for the current lithium-ion batteries (LIBs). However, it is also true that the current LIB technology is being stagnated by the limit set by VC. This study introduces 3-fluoro-1,3-propane sultone (FPS) as a novel SEI additive to replace VC and another popular SEI additive, 1,3-propane sultone (PS). Both density functional calculations and electrochemical experiments confirm that the presence of an electron withdrawing fluorine group is favourable in terms of anodic stability and SEI forming ability. In the cyclability of LiCoO2/graphite cells over a wide temperature range (25–60 °C), FPS exhibits remarkable enhancement compared with PS, and is even superior to VC. During elevated temperature (90 °C) storage of the cells, VC suffers from severe swelling, whereas FPS causes little thermal degradation. Considering the high anodic stability, the excellent cyclability, and the good thermal stability, FPS is an outstanding SEI additive that can expand the performance boundary of the current LIBs. [ABSTRACT FROM AUTHOR]

Fluorogenic sulforhodamine-neomycin conjugates have been designed and synthesized for RNA tagging. Conjugates were fluorescently activated by binding to RNA aptamers and exhibited greater than 250-400 fold enhancement in binding affinity relative to corresponding unconjugated fluorophores.

OsO4-catalysed dihydroxylation reactions of the aryl ketimine derivatives of (E)-gamma-amino-alpha,beta-unsaturated esters gave anti selectivity ranging from 6.7 : 1 to 19 : 1, whereas the opposite syn selectivity was consistently observed with those of (Z)-gamma-amino-alpha,beta-unsaturated esters (5.4 : 1 to > 100 : 1).