CHEMOSELECTIVE ACETYLATION OF ALCOHOLS, AMINES, AND THIOLS WITHOUT CATALYST AND SOLVENT
作者:B. P. Bandgar、S. P. Kasture、V. T. Kamble
DOI:10.1081/scc-100104824
日期:2001.1
Microwave induced rapid and selective acetylation of alcohols, amines and thiols with aceticanhydride was carried out under non-catalytic and solvent free conditions.
微波诱导的醇、胺和硫醇与乙酸酐的快速和选择性乙酰化在非催化和无溶剂条件下进行。
<i>In Vivo</i> Imaging of Senescent Vascular Cells in Atherosclerotic Mice Using a β-Galactosidase-Activatable Nanoprobe
Senescence-associated diseases have severely diminished the quality of life and health of patients. However, a sensitive assay of these diseases remains limited due to a lack of straightforward methods. Considering that senescence-associated β-galactosidase (SA-β-Gal) is overexpressed in senescent cells, the detection of SA-β-Gal in senescent cells and tissues might be a feasible strategy for the early diagnosis of SA diseases. In this study, a β-galactosidase-activatable nanoprobe BOD-L-βGal-NPs was developed for the imaging of senescent cells and vasculature in atherosclerotic mice via real-time monitoring of β-Gal. BOD-L-βGal-NPs was fabricated by encapsulating a newly designed NIR ratiometric probe BOD-L-βGal within a poly(lactic-co-glycolic) acid (PLGA) core. Nanoprobe BOD-L-βGal-NPs showed good accumulation in arteries, thus successfully visualizing senescent cells and vasculature in atherosclerotic mice by tail vein injection. Our findings indicated that nanoprobe BOD-L-βGal-NPs holds great potential for the early diagnosis and therapy of atherosclerosis and other aging-associated diseases.
nidase (NAG)-activatable second near-infrared (NIR-II) fluorescent nanoprobe (BOD-II-NAG-NP) is developed for monitoring the progression of drug-induced AKI and in vivo imaging of diabetes-caused CKD. NAG, as a biomarker of renal diseases, is able to specifically activate BOD-II-NAG-NP to release NIR-II fluorescence signals, enabling in vivo imaging of kidneydysfunctions in living mice. Importantly
[EN] POLY(ETHYLENE GLYCOL) DERIVATIVES FOR METAL-FREE CLICK CHEMISTRY<br/>[FR] DÉRIVÉS DE POLY(ÉTHYLÈNEGLYCOL) POUR CHIMIE CLICK SANS MÉTAL
申请人:INTEZYNE TECHNOLOGIES INC
公开号:WO2011112969A1
公开(公告)日:2011-09-15
The present invention provides bifunctional polymers, methods of preparing the same, and intermediates thereto. These compounds are useful in a variety of applications including the PEGylation of biologically active molecules. The invention also provides methods of using said compounds and compositions thereof.
Heterobifunctional poly(ethyleneglycol) containing acid-labile amino protecting groups and uses thereof
申请人:Breitenkamp Kurt
公开号:US20080188638A1
公开(公告)日:2008-08-07
The present invention provides bifunctional polymers, methods of preparing the same, and intermediates thereto. These compounds are useful in a variety of applications including the PEGylation of biologically active molecules. The invention also provides methods of using said compounds and compositions thereof.