Tuning receptors for the encapsulation of beryllium2+

2019 ◽  
Vol 21 (35) ◽  
pp. 19660-19666 ◽  
Author(s):  
David J. Nixon ◽  
Lakshika C. Perera ◽  
Tyson N. Dais ◽  
Penelope J. Brothers ◽  
William Henderson ◽  
...  
Keyword(s):  
Binding Strength ◽  
Beryllium Complexes

A method for evaluating second sphere H-bonding interactions as a means to tune specific characteristics in coordinating ligands has been used to evaluate the binding strength of a series of beryllium complexes.

The accumulation of solutes and water binding strength in durum wheat

1994 ◽  
Vol 90 (4) ◽  
pp. 715-721 ◽  
Author(s):  
A. Rascio ◽  
C. Platani ◽  
G. Scalfati ◽  
A. Tonti ◽  
N. Di Fonzo
Keyword(s):  
Durum Wheat ◽  
Water Binding ◽  
Binding Strength

Calix[4]arene sulfonate hosts selectively modified on the upper rim: a study of nicotine binding strength and geometry

2021 ◽  
pp. 1-9
Author(s):  
Zoey Warmerdam ◽  
Bianca E. Kamba ◽  
Alok Shaurya ◽  
XuXin Sun ◽  
Mary K. Maguire ◽  
...  
Keyword(s):  
Binding Strength ◽  
Upper Rim

Method for testing antiserum titer and avidity in nephelometric systems.

1981 ◽  
Vol 27 (11) ◽  
pp. 1838-1844 ◽  
Author(s):  
G A Hudson ◽  
R F Ritchie ◽  
J E Haddow
Keyword(s):  
Dose Response ◽  
Response Curve ◽  
Direct Evidence ◽  
Reaction Rates ◽  
Dose Response Curve ◽  
Antigen Concentration ◽  
Response Curves ◽  
Binding Strength ◽  
Antiserum Dilution ◽  
Antiserum Titer

Abstract Antiserum performance in a nephelometric system can be characterized by parameters derived from measuring reaction rates. The characterization process is derived from a series of dose-response curves (elicited nephelometric response vs antigen concentration) generated from various dilutions of the antiserum being tested. Antiserum titer can then be calculated by plotting the antigen concentration found at one-half the maximum nephelometric response (Hmax) of each dose-response curve (C50) vs the corresponding antiserum dilution. Antiserum avidity can be calculated by plotting Hmax against its corresponding antiserum concentration. After general expressions are determined for C50 and Hmax vs antiserum concentration, a single dose-response curve suffices for characterizing antisera with respect to titer and avidity. Direct evidence is provided for the validity of C50 and Hmax as measures of titer and avidity by correlating these parameters with antiserum binding strength and with the number of antibodies eluted from immobilized antigen. This method can be applied to evaluate and compare different antiserum lots having the same specificity, to identify reagent inadequacies by comparing antisera of different specificity, and to predict the optimal antiserum dilution to use in performing an assay.

Schiff base equilibria. II. Beryllium complexes of N-n-butylsalicylideneimine and the hydrolysis of the Be2+ ion

1965 ◽  
Vol 18 (5) ◽  
pp. 651 ◽  
Author(s):  
RW Green ◽  
PW Alexander
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Complex Formation ◽  
Distribution Coefficient ◽  
Dilute Aqueous Solution ◽  
The Stability ◽  
Ph Range ◽  
Hydrolysis Of ◽  
Beryllium Complexes ◽  
Equilibria In Aqueous Solution

The Schiff base, N-n-butylsalicylideneimine, extracts more than 99.8% beryllium into toluene from dilute aqueous solution. The distribution of beryllium has been studied in the pH range 5-13 and is discussed in terms of the several complex equilibria in aqueous solution. The stability constants of the complexes formed between beryllium and the Schiff base are log β1 11.1 and log β2 20.4, and the distribution coefficient of the bis complex is 550. Over most of the pH range, hydrolysis of the Be2+ ion competes with complex formation and provides a means of measuring the hydrolysis constants. They are for the reactions: Be(H2O)42+ ↔ 2H+ + Be(H2O)2(OH)2, log*β2 - 13.65; Be(H2O)42+ ↔ 3H+ + Be(H2O)(OH)3-, log*β3 -24.11.

Influence of Agglomerate Size on the Properties of Al2O3-Al2Cu3 Multiphase Ceramic Coatings

2007 ◽  
Vol 336-338 ◽  
pp. 1791-1792
Author(s):  
Hai Ping Cui ◽  
Jun Yan ◽  
Shi Guo Du ◽  
Xin Kang Du
Keyword(s):  
Mechanical Properties ◽  
Size Range ◽  
Ceramic Coatings ◽  
Reactive System ◽  
Flame Spray ◽  
Agglomerate Size ◽  
Binding Strength

Al2O3-Al2Cu3 multiphase coatings were prepared on the surface of steel by reactive flame spray. The binding strength, microhardness and abrasion quality of the coatings were measured and analyzed. The influence of the agglomerate size on the properties of the coatings was emphatically studied to choose suitable size range for Al-CuO reactive system. The results showed that coatings prepared by using –150∼+250 meshes agglomerates exhibited good mechanical properties.

scholarly journals Impact of Pretreatment of the Bulk Starting Material on the Efficiency of Liquid Phase Exfoliation of WS2

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1072
Author(s):  
Steffen Ott ◽  
Melanie Lakmann ◽  
Claudia Backes
Keyword(s):  
Liquid Phase ◽  
Quantum Yield ◽  
Aspect Ratio ◽  
Optical Quality ◽  
Starting Material ◽  
Binding Strength ◽  
Photoluminescence Quantum Yield ◽  
Out Of Plane ◽  
Liquid Phase Exfoliation ◽  
Pretreatment Conditions

Liquid phase exfoliation (LPE) is widely used to produce colloidal dispersions of nanomaterials, in particular two-dimensional nanosheets. The degree of exfoliation, i.e., the length to thickness aspect ratio was shown to be intrinsically limited by the ratio of in-plane to out-of-plane binding strength. In this work, we investigate whether simple pretreatment of the starting material can be used to change the in-plane to out-of-plane binding strength through mild intercalation to improve the sample quality in sonication-assisted LPE. Five different pretreatment conditions of WS2 were tested and the dispersions size-selected through centrifugation. From optical spectroscopy (extinction, Raman, photoluminescence), information on nanosheet dimension (average lateral size, layer number, monolayer size) and optical quality (relative photoluminescence quantum yield) was extracted. We find that the pretreatment has a minor impact on the length/thickness aspect ratio, but that photoluminescence quantum yield can be increased in particular using mild sonication conditions. We attribute this to the successful exfoliation of nanosheets with a lower degree of basal plane defectiveness. This work emphasizes the complexity of the exfoliation process and suggests that the role of defects has to be considered for a comprehensive picture.

scholarly journals An Evaluation of the Binding Strength of Okra Gum and the Drug Release Characteristics of Tablets Prepared from It

Pharmaceutics ◽  
2017 ◽  
Vol 9 (4) ◽  
pp. 20 ◽  
Author(s):  
Amjad Hussain ◽  
Farah Qureshi ◽  
Nasir Abbas ◽  
Muhammad Arshad ◽  
Ejaz Ali
Keyword(s):  
Drug Release ◽  
Binding Strength ◽  
Okra Gum
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