Gemini 14-s-14 micelle-catalyzed study between ninhydrin and valine reaction by different techniques (spectroscopic and conductometric)

被引：0

作者：

Kumar, Dileep ^{[1
,2
]}

Khan, Javed Masood ^{[3
]}

Sultana, Nazima ^{[4
]}

Posa, Mihalj ^{[5
]}

Sharma, Poonam ^{[6
]}

Saha, Bidyut ^{[7
]}

Bhattarai, Ajaya ^{[8
]}

机构：

[1] Van Lang Univ, Inst Computat Sci & Artificial Intelligence, Lab Chem Computat & Modeling, Ho Chi Minh City, Vietnam

[2] Van Lang Univ, Fac Appl Technol, Sch Technol, Ho Chi Minh City, Vietnam

[3] King Saud Univ, Coll Food & Agr Sci, Dept Food Sci & Nutr, Riyadh 11451, Saudi Arabia

[4] Univ Sci & Technol Meghalaya, Dept Chem, Killing Rd, Baridua 793101, Meghalaya, India

[5] Univ Novi Sad, Med Fac, Dept Pharm, Hajduk Veljkova 3, Novi Sad 21000, Serbia

[6] Jaypee Univ Informat Technol, Dept Biotechnol & Bioinformat, Solan 173234, Himachal Prades, India

[7] Univ Burdwan, Dept Chem, Burdwan 713104, WB, India

[8] Tribhuvan Univ, Dept Chem, Mahendra Morang Adrash Multiple Campus, Biratnagar 56613, Nepal

来源：

CHEMICAL PHYSICS | 2025年 / 595卷

关键词：

Colloids; Catalytic activity; Gemini micelles; Morphology; Spectroscopy; Valine; SURFACTANTS SYNTHESIS; ORGANIC-SOLVENTS; KINETICS; MICELLIZATION; DEPHOSPHORYLATION; ASSOCIATION; TEMPERATURE; PARAMETERS; MECHANISM; BEHAVIOR;

D O I：

10.1016/j.chemphys.2025.112697

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Study between ninhydrin and valine (VL) reaction was investigated in 14-s-16 (s = 4 to 6) gemini surfactants (GS) by UV-visible spectroscopy. Rate constant (k psi) rises gradually and stays almost fixed with increasing [gemini]. Finally, at higher concentrations, we notice a sharp increment in rates. This uncommon influence of geminis at higher concentrations is assigned to modifications in their micellar structures. Catalytic behavior of geminis is unique and increased rates can be explained by applying a pseudo-phase model of micelles. Conductivity meter was employed to evaluate critical micellar concentration (cmc) of pure gemini micelles as well as their mixed system with reactants (ninhydrin and VL) at two different temperatures (303 K and 353 K). The cmc values of pure 14-s-14 surfactants at 303 K determined are concordant with the data obtained, previously. Several other constants and parameters, e.g., binding parameters, rate constants and thermodynamic quantities are also determined.

引用

页数：8

共 2 条

[1] Micelle-catalyzed reaction of ninhydrin with DL-valine in the absence and presence of organic solvents
Kabir-Ud-Din
Fatma, Waseefa
Khan, Zaheer
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, 2006, 38 (10) : 634 - 642
[2] Micelle-catalyzed reaction between ninhydrin and nickel dipeptide complex [Ni(II)-Gly-Tyr]+
Akram, Mohd
Kumar, Dileep
Kabir-ud-Din
COLLOIDS AND SURFACES B-BIOINTERFACES, 2012, 94 : 220 - 225

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