Article
Multidisciplinary Sciences
Manas Barai, Emili Manna, Habiba Sultana, Manas Mandal, Kartik Guchhait, Tuhin Manna, Anuttam Patra, Chien-Hsiang Chang, Parikshit Moitra, Chandradipa Ghosh, Anna-Carin Larsson, Santanu Bhattacharya, Amiya Panda
Summary: The study found that surfactants based on dicarboxylic amino acids combined with HTAB form various aggregates with composition and concentration-dependent phase behaviors. These aggregates show minimal toxicity and irritation to cells and skin in vitro, while exhibiting significant antibacterial effects against Staphylococcus aureus.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Shreyasi Asthana, Sonali Mohanty, Harshit Kalra, Nandini Karunanethy, Sujeet Kumar, Nikhil Agrawal, Suman Jha
Summary: The three-dimensional structure of a protein is crucial for its function. This study investigated the effect of sodium dodecyl sulphate (SDS) and cetyltrimethylammonium bromide (CTAB) on the structure of peanut agglutinin (PNA), demonstrating that these surfactants can induce conformational changes in the protein.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Chemistry, Applied
Tina Raeisi Gahrooee, Aref Abbasi Moud, Marziyeh Danesh, Savvas G. Hatzikiriakos
Summary: This study investigates the network structure and rheological behavior of Cellulose Nanocrystal (CNC) suspension in the presence of cetyltrimethylammonium bromide (CTAB) both below and above the critical micelle concentration (CMC). Through TEM imaging and rheological characterization, it was found that CNC-CTAB gels exhibit shear thinning behavior, with a complex relationship between strain amplitudes and CTAB concentration affecting the network structure and performance.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Vinod Kumar, Rajni Verma, Dwarkesh Satodia, Debes Ray, Ketan Kuperkar, Vinod Kumar Aswal, Katie R. Mitchell-Koch, Pratap Bahadur
Summary: The study investigated the self-assembly of three quaternary salt-based cationic surfactants with different polar head groups in aqueous solutions. The presence of BuOH promoted mixed micelle formation, while BTD interfered with micellization. Analyzing the micellar characteristics using various techniques provided insights into micelle size/shape and aggregation number, as well as the morphology transition induced by alcohol addition.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Pharmacology & Pharmacy
Pedro Martins da Silva Filho, Pedro Higor Rocha Mariano, Alexandre Lopes Andrade, Jessica Barros Arrais Cruz Lopes, Aryane de Azevedo Pinheiro, Mayara Itala Geronimo de Azevedo, Suelen Carneiro de Medeiros, Mayron Alves de Vasconcelos, Said Goncalvez da Cruz Fonseca, Thalles Barbosa Grangeiro, Luiz Gonzaga de Franca, Eduardo Henrique Silva Sousa, Edson Holanda Teixeira, Elisane Longhinotti
Summary: New antibiotic agents are urgently needed worldwide to combat the increasing tolerance and resistance of pathogenic fungi and bacteria to current antimicrobials. The study found that minor quantities of cetyltrimethylammonium bromide (CTAB) on silica nanoparticles exhibit antimicrobial activity against Methicillin-resistant Staphylococcus aureus strain and reference strains of Candida. The results also showed low cytotoxicity in human fibroblasts and potential application in the treatment and/or prevention of infections caused by drug-resistant Staphylococcus and Candida species.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Agricultural Engineering
Wei Tang, Caoxing Huang, Zhengyu Tang, Yu-Cai He
Summary: An efficient deep eutectic solvent (DES), synthesized using cetyltrimethylammonium bromide (CTAB) and ethylene glycol (EG), was used to enhance enzymatic saccharification of rape straw (RS). The optimized pretreatment parameters showed that the DES selectively removed lignin and xylan while preserving cellulose. DES pretreatment resulted in an increased enzymatic hydrolysis efficiency of RS by 46.0% due to the removal of 62.2% lignin and 53.2% xylan. The study also revealed that DES pretreatment improved cellulosic accessibility, reduced lignin hydrophobicity and surface area, and caused migration of cellulosic crystalline structure, contributing to enhanced enzymatic hydrolysis efficiency. Overall, this study presented an emerging method for the effective fractionation and valorization of lignocellulosic biomass within biorefinery technology.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Wei Tang, Bo Fan, Xinyue Wang, Caoxing Huang, Zhengyu Tang, Yucai He
Summary: In this study, a novel deep eutectic solvent (DES) was used for pretreatment of rape straw, resulting in high removal efficiency of lignin and xylan, improved accessibility, crystallinity, and lignin surface area. The sugar yield of pretreated rape straw was significantly increased.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Chemical
Suhong Zhang, Jinting Ren, Yanlong Wen, Xiufeng Shao
Summary: The study investigates the effect of using DDAA and CTAB as a mixed collector on the flotation separation of diaspore and kaolinite. The experimental results show that the use of DDAA and CTAB significantly improves the flotation separation performance of diaspore and kaolinite. The adsorption analysis and molecular dynamics simulation support the experimental findings, showing that the interaction energies between DDAA and diaspore are more negative, while the interaction energies between CTAB and kaolinite are also more negative. The theoretical calculations and experimental results indicate that the enlarged difference in adsorption amounts is beneficial for the flotation separation performance of minerals.
MINERALS ENGINEERING
(2022)
Article
Energy & Fuels
A. V. Snehya, M. A. Sundaramahalingam, J. Rajesh Banu, P. Sivashanmugam
Summary: The potential of using biomass Sargassum tennerimum as a renewable feedstock for biohydrogen generation was investigated. The disintegration of biomass using ultrasonic treatment (UT) and surfactant cetyltrimethylammonium bromide combined ultrasonic treatment (CTABCUT) was studied, and CTABCUT was found to achieve a higher release of soluble organic matter and solubilization percentage of organic matter compared to UT. The biohydrogen production capacity under anaerobic conditions was also higher in CTABCUT than in UT and control, indicating its effectiveness. The econo-feasibility of CTABCUT was determined to be strong based on energy analysis.
BIOENERGY RESEARCH
(2023)
Article
Agricultural Engineering
Rhosener Bhea L. Koh, Cris Francis C. Barbosa, Vermando M. Aquino, Leny C. Galvez
Summary: This study aimed to compare five different methods for extracting high molecular weight DNA from abaca leaves, with Protocol 3 (CTAB with 0.3% beta-mercaptoethanol) found to be the simplest and most consistent method for producing high quality DNA for sequencing applications. Protocol 4 (sodium dodecyl sulfate) was determined to have the shortest processing time, and when combined with TissueLyserII-facilitated homogenization, it is the most suitable combination for high-throughput extraction of abaca samples for genotyping-by-sequencing strategies.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Biotechnology & Applied Microbiology
Aya A. Najim, Zainab Z. Ismail, Khalid K. Hummadi
Summary: This study aimed to assess and compare the potential of SDS biodegradation in different types of real-field effluents. The results showed that SDS removal efficiency in domestic wastewater, laundry wastewater, carwash garage wastewater, and wastewater from household detergent industry were 99.63%, 92.31%, 98.78%, and 85.77% respectively. The study revealed that aerobic biodegradation can effectively remove SDS in actual effluents regardless of its concentration.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Jayati Arora, Anuj Ranjan, Abhishek Chauhan, Vishnu D. Rajput, Svetlana Sushkova, Evgeniya V. Prazdnova, Tatiana Minkina, Rima Biswas, Sanket Joshi, Tanu Jindal, Ram Prasad
Summary: The Yamuna River, a tributary of the Ganga River in India, is heavily polluted in the Delhi-NCR region. The excessive foaming of the river is believed to be caused by the overuse of surfactants and the discharge of untreated wastewater. The study collected and analyzed water samples from four sites in the river to determine the surfactant load and investigate surfactant-degrading bacteria. The results showed high surfactant concentrations exceeding permissible limits, and two bacterial species were identified for their potential in degrading surfactants.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Tochukwu Olunna Nnyigide, Osita Sunday Nnyigide, Kyu Hyun
Summary: This study reports the gelation of human serum albumin (HSA) in aqueous solutions of cationic surfactant CTAB or anionic surfactant SDS. Increasing CTAB concentration accelerated HSA gelation, while increasing SDS concentration inhibited HSA gelation. The rheological and kinetic properties of HSA hydrogels were significantly influenced by the presence of cationic CTAB and anionic SDS surfactants.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Noor Ul Alamin, Amir Sada Khan, Asma Nasrullah, Jibran Iqbal, Zahoor Ullah, Israf Ud Din, Nawshad Muhammad, Shahan Zeb Khan
Summary: A cost-effective and sustainable activated carbon based on Calligonum polygonoides biomass was successfully synthesized and used in carbon-alginate beads for the adsorption of methylene blue dye. The fabricated beads demonstrated high adsorption capability and efficiency for the removal of cationic dyes from wastewater, even after recycling.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Metallurgy & Metallurgical Engineering
Kan Hong-min, Meng Yuan-yuan, Ramana G. Reddy
Summary: The size of silicon carbide particles affects the uniformity and quantity of silicon carbide particles in nickel-silicon carbide composite coatings, with 40 nm particles being more effective than 500 nm particles. In terms of surfactants, anionic surfactant SDS produced better dispersion of 40 nm silicon carbide particles compared to cationic surfactant CTAB.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2021)
Article
Crystallography
Farid N. Naghiyev, Victor N. Khrustalev, Anton P. Novikov, Mehmet Akkurt, Ali N. Khalilov, Ajaya Bhattarai, Ibrahim G. Mamedov
Summary: In the title compound, the ring system adopts specific conformations, and the crystal structure is stabilized by various intermolecular interactions, including hydrogen bonding and pi interactions. Hirshfeld surface analysis reveals the contributions of different intermolecular interactions to the crystal packing.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Abel Maharramov, Namiq Q. Shikhaliyev, Ayten Qajar, Gulnar T. Atakishiyeva, Ayten Niyazova, Victor N. Khrustalev, Mehmet Akkurt, Sema Ozturk Yildirim, Ajaya Bhattarai
Summary: The crystal structures and Hirshfeld surface analyses of four similar azo compounds have been studied. The compounds (I) and (II) crystallize in the monoclinic space group C2/c, while (III) crystallizes in the monoclinic space group P2(1)/c, and (IV) crystallizes in the triclinic space group P (1) over bar. The crystal structures reveal different types of interactions between molecules, leading to the formation of various layer or network structures.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Ali N. Khalilov, Victor N. Khrustalev, Larissa V. Aleksandrova, Mehmet Akkurt, Rovnag M. Rzayev, Ajaya Bhattarai, Ibrahim G. Mamedov
Summary: In the title compound, molecules form hydrogen-bonded zigzag chains along the b axis and parallel to the (001) plane through O-H...O and C-H...O hydrogen bonds. The molecular packing is stabilized by van der Waals interactions between these chains along the a and c axes. Intermolecular interactions in the crystal structure were quantified and analyzed using Hirshfeld surface analysis.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Review
Chemistry, Physical
Rakesh Kumar Ameta, Kunjal Soni, Ajaya Bhattarai
Summary: Formulations based on emulsions have attracted interest in enhancing hydrophobic and lipophilic drug delivery and its bioavailability. These drug delivery systems use emulsion formations to overcome the issue of less oral bioavailability in hydrophobic and lipophilic drugs. Fine oil in water emulsions are formed when introduced to aqueous material and promote the spread of the drug in the gastrointestinal tract. Innovative drug carriers such as self-emulsifying pellets, tablets, capsules, and microspheres have been developed for controlled release and improved bioavailability of lipophilic/hydrophobic drugs.
COLLOIDS AND INTERFACES
(2023)
Article
Chemistry, Physical
Mihalj Posa, Ajaya Bhattarai, Javed Masood Khan, Bidyut Saha, Dileep Kumar
Summary: The rates of the title reaction were measured in a double-headed micellar medium using UV-vis single beam spectroscopy. Gemini surfactants showed higher rate constants compared to CTAB, following first- and fractional-order paths in the reactions of Leu and ninhydrin, respectively. The impact of double-headed geminis on the reaction was explained and a pseudo-phase model of micellar activity was employed to interpret the observation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Dileep Kumar, Javed Masood Khan, Mihalj Posa, Ajmal Koya Pulikkal, Bidyut Saha, Ajaya Bhattarai
Summary: This study investigates the effect of solutions of double-chained quaternary ammonium gemini surfactants on the rate constant of the ninhydrin and lysine reaction. The results show the impact of different conditions on the rate constant and provide insights into the binding constants and critical micellar concentration.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Crystallography
Elnur Z. Huseynov, Mehmet Akkurt, Ivan Brito, Ajaya Bhattarai, Farid N. Naghiyev, Khammed A. Asadov, Abel M. Maharramov
Summary: In this hydrated salt crystal, the cation is connected to the anion and water molecule through various hydrogen bonds, forming a complex network structure. The most important contributions to the crystal packing come from H···H, S···H/H···S, N···H/H···N, Cl···H/H···Cl, and C···H/H···C interactions.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Firudin I. Guseinov, Aleksandr V. Knyazev, Elena V. Shuvalova, Konstantin I. Kobrakov, Aida I. Samigullina, Zeliha Atioglu, Mehmet Akkurt, Ajaya Bhattarai
Summary: This study reveals the molecular configuration and crystal structure of the title compound, as well as the contributions of intermolecular interactions to the crystal packing.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Elnur Z. Huseynov, Mehmet Akkurt, Ivan Brito, Ajaya Bhattarai, Rovnag M. Rzayev, Khammed A. Asadov, Abel M. Maharramov
Summary: In the title compound, the molecular packing is mainly driven by N-H···N and N-H···O hydrogen bonding, resulting in the formation of a layered structure.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Ali N. Khalilov, Victor N. Khrustalev, Aida I. Samigullina, Mehmet Akkurt, Rovnag M. Rzayev, Ajaya Bhattarai, Brahim G. Mamedov
Summary: The title compound is a new organic compound with a unique molecular and crystal structure. The molecules form dimers and a three-dimensional network through hydrogen bonds and π interactions, respectively.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Abel Maharramov, Namiq Q. Shikhaliyev, Afaq Abdullayeva, Gulnar T. Atakishiyeva, Ayten Niyazova, Victor N. Khrustalev, Shahnaz I. Gahramanova, Zeliha Atioglu, Mehmet Akkurt, Ajaya Bhattarai
Summary: In this compound, there are interactions between different rings and molecules, forming a chain-like structure connected by weak van der Waals interactions.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Fargana S. Aliyeva, Gunay Z. Mammadova, Mehmet Akkurt, Sevim Turktekin Celikesi, Ajaya Bhattarai
Summary: The title compound crystallizes in the triclinic space group P(1) with one independent molecule and one ethanol solvent molecule. The crystal exhibits hydrogen bonding and dimer motifs, as well as C-I···π interactions.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Milan K. Barman, Ajaya Bhattarai, Bidyut Saha
Summary: Water pollution is caused by various contaminants such as heavy metals, emerging organic contaminants, pesticides, organic waste, organic dyes, radionuclides, fluorides, etc. These pollutants are a concern for engineers, environmentalists, and scientists. Recycling wastewater after treatment to remove organic contaminants and heavy metal pollutants is important due to the lack of freshwater. Methods such as chemical precipitation, ion exchange, adsorption, membrane filtration, flocculation, coagulation, flotation, and electrochemical techniques are used to eliminate contaminants from wastewater. The ion exchange process is the most popular and effective method.
VIETNAM JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Dilli Ram Pokhrel, Manish Kumar Sah, Bibaran Gautam, Hriday Kumar Basak, Ajaya Bhattarai, Abhik Chatterjee
Summary: This review focuses on the self-aggregation properties of different drugs and their interaction with different types of surfactants. The review discusses various measurement techniques used to study drug-surfactant interactions, such as conductivity, surface tension, viscosity, density, and UV-Vis spectrophotometric measurements. The effects of external parameters on the thermodynamic parameters of drug-surfactant interactions are also discussed. The review emphasizes the potential applications of drug-surfactant interactions in various fields.
Article
Chemistry, Multidisciplinary
Neelam Shahi, Sujit Kumar Shah, Amar Prasad Yadav, Ajaya Bhattarai
Summary: Conductivity measurements were conducted at three different temperatures to investigate the micellization behavior of cationic surfactants in mixed solvent systems. The presence of the azo dye methyl red was found to interact with the surfactants, leading to reduced critical micelle concentration values. Thermodynamic properties were calculated to further understand the micellization process in the absence and presence of methyl red, showing the spontaneous nature of the surfactant-dye interaction.
RESULTS IN CHEMISTRY
(2023)
