Catalysis by acetylcholinesterase. I. Fluorescent titration with a carbamoylating agent

Biochemistry ◽  
1971 ◽  
Vol 10 (22) ◽  
pp. 4114-4120 ◽  
Author(s):  
Terrone L. Rosenberry ◽  
Sidney A. Bernhard
Keyword(s):  
Fluorescent Titration

Purification and Fluorescent Titration of Cellular Retinol-Binding Protein

1998 ◽  
pp. 111-122 ◽  
Author(s):  
Giorgio Malpeli ◽  
Claudia Folli ◽  
Davide Cavazzini ◽  
Giovanni Sartori ◽  
Rodolfo Berni
Keyword(s):  
Binding Protein ◽  
Retinol Binding Protein ◽  
Fluorescent Titration ◽  
Cellular Retinol Binding Protein

scholarly journals Quantitative Analysis Of Fˉ Ion Recognition By A New Chemosensor from Flavon Group

2020 ◽  
Vol 3 (1) ◽  
pp. 143
Author(s):  
R Rahmawati ◽  
Syarifa Wahidah Al-Idrus ◽  
Baiq Nila Sari ◽  
Bambang Purwono ◽  
Sabirin Matsjeh
Keyword(s):  
Quantitative Analysis ◽  
Emission Spectrum ◽  
Ion Recognition ◽  
Fluorescent Titration ◽  
Positive Results

A new chemosensor S8 compound from the flavon group that has been successfully synthesized. Test its ability as a chemosensor for F- anion, providing positive results that it can recognize F- anion with response to an increase in fluorescent solution. Titration of S8 solution in DMSO solvents was carried out with F- anion at various concentrations and then measurements were made on fluorometry instruments. The fluorescent titration emission spectrum shows that the S8-Fˉ host-guest interaction quantitatively in the form of LOD and kass. LOD and Kass values are 6.43 × 10ˉ4 M and 2 × 106 Mˉ1, respectively.

scholarly journals Chiral Fluorescence Recognition by Anthracene Fluorescent Dyes ⊂ Water-Soluble Pillar[5]arene Containing Phosphonic Acid Group (PWP[5])

2021 ◽  
Author(s):  
Yuliang Chen ◽  
Kaijie Lai ◽  
Jinmi Cai ◽  
Yicheng Li ◽  
Haibo Wang
Keyword(s):  
Fluorescence Intensity ◽  
Phosphonic Acid ◽  
Fluorescent Dyes ◽  
Food Additives ◽  
Acid Group ◽  
Water Soluble ◽  
Chiral Molecules ◽  
Phosphonic Acid Group ◽  
Novel Method ◽  
Fluorescent Titration

Abstract Chirality plays a pivotal role in drugs, agrochmeicals and food additives et al. The enantiomers of a chiral molecule often show huge difference in bioactivity, metabolism, and toxicity et al. thereby, the recognition of chiral molecules shows an increasingly important priority, and has become an important focus and frontier in medicine, biochemistry and other fields. In this paper, a novel method for chiral fluorescence recognition based on anthracene fluorescent dyes(AD) ⊂ water-soluble pillar[5] arene containing phosphonic acid group(PWP[5]) is developed. The AD as guest molecule can complex with PWP[5] to form 1:1 AD ⊂ PWP[5] assembly, and this assembly can be further used as a fluorescent probe to identify D/L-phenylalanine and D/L-phenylalaninol by fluorescent titration. The fluorescence intensity of the assembly was significantly reduced for D-phenylalanine and D-phenylalaninol, while L-phenylalanine or L-phenylalaninol was added to AD ⊂ PWP[5] assembly, the fluorescence intensity of the assembly almost unchanged. Hence, the chiral recognition based on assembly between the achiral fused ring fluorescent dye and achiral PWP[5] was developed.

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