betadex and cyclam

betadex has been researched along with cyclam* in 2 studies

Other Studies

2 other study(ies) available for betadex and cyclam

Article	Year
Recognition of Hg(2+) using diametrically disubstituted cyclam unit. Inorganic chemistry, 2010, Dec-20, Volume: 49, Issue:24 A newly synthesized 1,4,8,11-tetraazacyclotetradecane derivative (L), functionalized with a diazo moiety as the reporter functionality, is found to bind specifically to Hg(2+) with an associated change in color that could be visually detected. With biologically benign β-CD, it forms an inclusion complex (L·2β-CD), which shows a much higher solubility in water, and this helps in developing a more intense color on binding to Hg(2+) in a CH(3)CN-HEPES buffer medium. The nontoxic nature of L was checked with the living cells of a Gram negative bacterium, Pseudomonas putida . Further, experiments revealed that these two reagents could be used as staining agents for the detection of Hg(2+) present in this microorganism. Topics: Azo Compounds; beta-Cyclodextrins; Heterocyclic Compounds; Magnetic Resonance Spectroscopy; Mercuric Chloride; Pseudomonas putida; Spectrometry, Mass, Electrospray Ionization; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared	2010
Application of cyclam-capped beta-cyclodextrin-bonded silica particles as a chiral stationary phase in capillary electrochromatography for enantiomeric separations. Analytical chemistry, 2003, Mar-15, Volume: 75, Issue:6 Two novel types of substituted cyclam-capped beta-cyclodextrin (beta-CD)-bonded silica particles have been prepared and used as chiral stationary phases in capillary electrochromatography (CEC). The two stationary phases have a chiral selector with three recognition sites: beta-CD, cyclam, and the latter's sidearm. They exhibit excellent enantioselectivities in CEC for a wide range of compounds as a result of the cooperative functioning of the anchored beta-CD and cyclam. After inclusion of the metal ion (Ni2+) from the running buffer into the substituted cyclams and their sidearm ligands, the bonded stationary phases become positively charged and can provide extra electrostatic interactions with ionizable solutes and enhance the dipolar interactions with some polar neutral solutes. This enhances the host-guest interaction with some solutes and improves chiral recognition and enantioselectivity. These new types of stationary phases exhibit great potential for fast chiral separations in CEC. Topics: beta-Cyclodextrins; Chromatography; Cyclodextrins; Electrophoresis, Capillary; Heterocyclic Compounds; Nickel; Organic Chemicals; Silicon Dioxide; Static Electricity; Stereoisomerism	2003

Article

Year

Recognition of Hg(2+) using diametrically disubstituted cyclam unit.

Inorganic chemistry, 2010, Dec-20, Volume: 49, Issue:24

A newly synthesized 1,4,8,11-tetraazacyclotetradecane derivative (L), functionalized with a diazo moiety as the reporter functionality, is found to bind specifically to Hg(2+) with an associated change in color that could be visually detected. With biologically benign β-CD, it forms an inclusion complex (L·2β-CD), which shows a much higher solubility in water, and this helps in developing a more intense color on binding to Hg(2+) in a CH(3)CN-HEPES buffer medium. The nontoxic nature of L was checked with the living cells of a Gram negative bacterium, Pseudomonas putida . Further, experiments revealed that these two reagents could be used as staining agents for the detection of Hg(2+) present in this microorganism.

Topics: Azo Compounds; beta-Cyclodextrins; Heterocyclic Compounds; Magnetic Resonance Spectroscopy; Mercuric Chloride; Pseudomonas putida; Spectrometry, Mass, Electrospray Ionization; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared

2010

Application of cyclam-capped beta-cyclodextrin-bonded silica particles as a chiral stationary phase in capillary electrochromatography for enantiomeric separations.

Analytical chemistry, 2003, Mar-15, Volume: 75, Issue:6

Two novel types of substituted cyclam-capped beta-cyclodextrin (beta-CD)-bonded silica particles have been prepared and used as chiral stationary phases in capillary electrochromatography (CEC). The two stationary phases have a chiral selector with three recognition sites: beta-CD, cyclam, and the latter's sidearm. They exhibit excellent enantioselectivities in CEC for a wide range of compounds as a result of the cooperative functioning of the anchored beta-CD and cyclam. After inclusion of the metal ion (Ni2+) from the running buffer into the substituted cyclams and their sidearm ligands, the bonded stationary phases become positively charged and can provide extra electrostatic interactions with ionizable solutes and enhance the dipolar interactions with some polar neutral solutes. This enhances the host-guest interaction with some solutes and improves chiral recognition and enantioselectivity. These new types of stationary phases exhibit great potential for fast chiral separations in CEC.

Topics: beta-Cyclodextrins; Chromatography; Cyclodextrins; Electrophoresis, Capillary; Heterocyclic Compounds; Nickel; Organic Chemicals; Silicon Dioxide; Static Electricity; Stereoisomerism

2003