Results 231 to 240 of about 1,945,891 (284)
Single‐Molecule Characterization of Bacterial Factor‐Dependent Transcription Activation by Rob
Advanced Science, EarlyView.Factor‐dependent transcription activation is crucial and involves complex interactions between transcription factors, RNA polymerase, and promoter DNA. Using single‐molecule assays, we show that Rob prebinds RNAP to facilitate promoter search and enhances DNA unwinding and promoter escape.
Yuqiong Zhang +7 more
wiley +1 more source
Advanced Science, EarlyView.Safe and precise bioorthogonal therapy of tumors was achieved by an ultrasound‐responsive heterostructured nanoreactor with on‐demand catalytic activity. Under piezoelectric catalysis, the system undergoes reversible Pd2+/Pd0 redox cycling, concurrently enabling spatiotemporally controlled prodrug activation and self‐terminating catalytic dose ...
Daqing Xia +9 more
wiley +1 more source
[Simultaneous detection of lower aliphatic amines and conventional cations in atmospheric PM2.5 particulates by ion chromatography]. [PDF]
Se PuZhang DD +5 more
europepmc +1 more source
[Determination of trace anions in battery-grade lithium carbonate by double-inhibition on-line matrix-removal ion chromatography]. [PDF]
Se PuWu G, Wu GQ.
europepmc +1 more source
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Journal of Separation Science, 2004
AbstractThis review summarizes progress in capillary ion chromatography. Theoretical aspects and practical limitations of packed and open tubular capillary columns are considered. Applications of packed and open tubular capillary IC are described. Emerging technologies such chip‐scale IC and the use of monolithic columns are discussed.
Purnendu Dasgupta
exaly +3 more sources
AbstractThis review summarizes progress in capillary ion chromatography. Theoretical aspects and practical limitations of packed and open tubular capillary columns are considered. Applications of packed and open tubular capillary IC are described. Emerging technologies such chip‐scale IC and the use of monolithic columns are discussed.
Purnendu Dasgupta
exaly +3 more sources
Current Protocols in Protein Science, 1998
AbstractThis unit outlines the basic steps in planning and carrying out ion‐exchange chromatography to separate proteins. Protocols describe both batch adsorption and column chromatography in conjunction with either step‐ or linear elution gradients. Support protocols describe (1) pilot experiments to determine initial conditions for batch or column ...
D, Sheehan, R, FitzGerald
openaire +5 more sources
AbstractThis unit outlines the basic steps in planning and carrying out ion‐exchange chromatography to separate proteins. Protocols describe both batch adsorption and column chromatography in conjunction with either step‐ or linear elution gradients. Support protocols describe (1) pilot experiments to determine initial conditions for batch or column ...
D, Sheehan, R, FitzGerald
openaire +5 more sources
, 2013 The basic principles and fundamentals of modern ion chromatography are presented with focus on a key separation mechanism, including ion exchange, ion exclusion, chelation, and zwitterionic interactions.
Pavel N. Nesterenko, Brett Paull
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Analytical Chemistry, 1964
Ion-exchange chromatography is a versatile method of separation and concentration which is applicable to many kinds of analysis, inorganic, organic, and biochemical. The experimental technique is simple and in most cases fairly rapid. In the great majority of inorganic applications, all that is needed is a tube about 25 cm long and 1 cm i.d ...
openaire +2 more sources
Ion-exchange chromatography is a versatile method of separation and concentration which is applicable to many kinds of analysis, inorganic, organic, and biochemical. The experimental technique is simple and in most cases fairly rapid. In the great majority of inorganic applications, all that is needed is a tube about 25 cm long and 1 cm i.d ...
openaire +2 more sources
Amperometric Ion Detector for Ion Chromatography
Analytical Chemistry, 1998A new type of amperometric detector for nonredox ions based on ion-transfer reactions at the water|2-nitrophenyl octyl ether−poly(vinyl chloride) gel microinterface has been developed. The polarized interface between water and a polymer composite membrane that can incorporate ionophores such as dibenzo-18-crown-6 and valinomycin provides a selective ...
Lee, H. J., Girault, H. H.
openaire +1 more source