A selective fluorescent probe for the detection of Cd2+ in different buffer solutions and water

2016 ◽  
Vol 45 (30) ◽  
pp. 12087-12093 ◽  
Author(s):  
Zheng Xu ◽  
Guoqiang Li ◽  
Yuan-Yuan Ren ◽  
Hua Huang ◽  
Xiaoping Wen ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Buffer Solution ◽  
Hepes Buffer ◽  
Buffer Solutions ◽  
Hepes Buffer Solution ◽  
Excellent Selectivity

A fluorescent probe NHQ, which exhibited excellent selectivity toward Cd2+ in different buffer solutions such as Tris-HCl buffer solution, HEPES buffer solution, and PBS buffer solution, and even in water, was developed.

Ratiometric sensing of Zn2+ with a new benzothiazole-based fluorescent sensor and living cell imaging

The Analyst ◽  
2021 ◽  
Author(s):  
Qi Wu ◽  
Liheng Feng ◽  
Jianbin Chao ◽  
Yu Wang ◽  
Shaomin Shuang
Keyword(s):  
Fluorescent Probe ◽  
Living Cell ◽  
Cell Imaging ◽  
Fluorescent Sensor ◽  
Buffer Solution ◽  
Hepes Buffer ◽  
Ratiometric Sensing ◽  
Hepes Buffer Solution ◽  
Living Cell Imaging

A new fluorescent probe, 3-(Benzo[d]thiazol-2-yl)-5-bromosalicylaldehyde-4N-phenyl thiosemicarbazone (BTT) for ratiometric sensing of Zn2+ ions in methanol / HEPES buffer solution (3 : 2, pH = 7.4) is reported in this paper....

Seedless, Surfactantless, High-Yield Synthesis of Branched Gold Nanocrystals in HEPES Buffer Solution

2007 ◽  
Vol 19 (11) ◽  
pp. 2823-2830 ◽  
Author(s):  
Jianping Xie ◽  
Jim Yang Lee ◽  
Daniel I. C. Wang
Keyword(s):  
High Yield ◽  
Buffer Solution ◽  
Gold Nanocrystals ◽  
Hepes Buffer ◽  
Hepes Buffer Solution

An Aptamer-Modified Nanogold Method for the Determination of Trace Ag+ Using Resonance Rayleigh Scattering as Detection Technique

2013 ◽  
Vol 647 ◽  
pp. 618-622
Author(s):  
Zhi Liang Jiang ◽  
Chen Yin Lin ◽  
Ai Hui Liang
Keyword(s):  
Gold Nanoparticle ◽  
Rayleigh Scattering ◽  
High Sensitivity ◽  
Resonance Rayleigh Scattering ◽  
Buffer Solution ◽  
Hepes Buffer ◽  
Large Particles ◽  
Ethanesulfonic Acid ◽  
Hepes Buffer Solution

Aptamer was modified the gold nanoparticle (AuNP) to form stable aptamer-AuNP probe that was not gathered in the pH 7.2 2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulfonic acid (HEPES) buffer solution and in the presence of NaCl. The Ag+ react with the aptamer-AuNP probe to fold a hairpin structure complex of Ag+-aptamer and release AuNPs that were aggregated to large particles, which lead to resonance Rayleigh scattering (RRS) peak at 596 nm enhancement. The enhanced value ΔI596nm is linear to Ag + concentration in the range of 6.7×10-8-1.33×10-6 mol/L. Thus, a new RRS methods were proposed for detection of Ag+, with high sensitivity, good selectivity and simplicity.

Hydrothermal synthesis of transition metal oxide nanomaterials in HEPES buffer solution

2010 ◽  
Vol 64 (18) ◽  
pp. 1939-1942 ◽  
Author(s):  
Hui Li ◽  
Zhong Lu ◽  
Jiliang Wu ◽  
Hui Yu ◽  
Xianglin Yu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Buffer Solution ◽  
Hepes Buffer ◽  
Metal Oxide Nanomaterials ◽  
Hepes Buffer Solution

Rumination in sheep. III. Experimentally induced variations on the circadian pattern of rumination

1965 ◽  
Vol 16 (4) ◽  
pp. 649 ◽  
Author(s):  
GR Pearce
Keyword(s):  
Extended Period ◽  
High Protein ◽  
Circadian Pattern ◽  
Buffer Solution ◽  
Buffer Solutions ◽  
Experimentally Induced

The circadian (24-hr) pattern of rumination of caged sheep was found to be affected: (a) by the administration of a roughage ration per fistulam; (b) by the emptying of the rumen and the subsequent return of the rumen contents; (c) by the emptying of the rumen and the replacement of the contents by a buffer solution plus roughage. The period during which no rumination occurred following feeding was progressively shortened when increasing proportions of a ration of oaten chaff and lucerne chaff were administered per fistulam. The effect was much reduced when high protein sheep cubes were added to the chaff ration. The removal of the rumen contents after voluntary feeding and then their immediate return to the rumen tended to cause an early commencement of rumination. When the rumen contents were "pasteurized" before return, however, rumination did not occur for an extended period afterwards. When the rumen contents were replaced with buffer solutions plus roughage, variable rumination responses occurred. In one instance apparently uninhibited rumination resulted.

scholarly journals ULTRACENTRIFUGATION STUDIES ON THE ELEMENTARY BODIES OF VACCINE VIRUS

1938 ◽  
Vol 68 (4) ◽  
pp. 607-627 ◽  
Author(s):  
Joseph E. Smadel ◽  
Edward G. Pickels ◽  
Theodore Shedlovsky
Keyword(s):  
Sedimentation Rate ◽  
Vaccine Virus ◽  
Normal Rate ◽  
Buffer Solution ◽  
Buffer Solutions ◽  
Original Volume ◽  
Sucrose Solutions ◽  
Rate Of Sedimentation

Ultracentrifugal studies of the CL dermal strain of vaccine virus warrant the following conclusions: 1. When suspended in increasing concentrations of sucrose, glycerol, or urea solutions, elementary bodies of vaccinia show variations in sedimentation rate which indicate changes in the density or size of the particles. For a given change in the density of the medium these changes are smallest with sucrose and most marked with urea. The normal rate of sedimentation of Paschen bodies may be restored by resuspending them in dilute buffer solution. 2. The density of elementary bodies of vaccinia suspended in dilute buffer solutions is estimated to be 1.16 gm. per cc. Higher values for the density are found if the particles are suspended in solutions containing sucrose, glycerol, or urea. In 53 per cent sucrose, for example, the density is 1.25 gm. per cc. 3. Paschen bodies appear to be quite permeable to water and urea, less so to glycerol, and only slightly, if at all, to sucrose. 4. The increased density of the elementary bodies of vaccinia in sucrose solutions may be accounted for by an osmotic extraction of water from the particles. On this basis the water which can be thus extracted corresponds to at least a third of the original volume of the particles.

A visible and near-infrared dual-fluorescent probe for discrimination between Cys/Hcy and GSH and its application in bioimaging

2020 ◽  
Vol 8 (21) ◽  
pp. 5994-6003
Author(s):  
Ruixi Li ◽  
Habtamu Kassaye ◽  
Yanping Pan ◽  
Yuanzhi Shen ◽  
Weiqing Li ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Near Infrared ◽  
Green Emission ◽  
High Sensitivity ◽  
Nir Emission ◽  
Excellent Selectivity

The probe Cy2 showed high sensitivity and excellent selectivity with a distinct fluorescence off-on response to GSH with NIR emission and Cys/Hcy with green emission, respectively.

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