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Synthesis, Characterization and Application of Surfactants II
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Synthesis, Characterization and Application of Surfactants II

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Cross-Field Chemistry".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 6020

Special Issue Editor

Dr. Hany M. Abd El-Lateef

E-Mail Website
Guest Editor
1. Chemistry Department, College of Science, King Faisal University, Al-hasa, Saudi Arabia
2. Chemistry Department, Faculty of Science, Sohag University, Sohag, Egypt
Interests: physical and thermodynamic performance of molecules; functional composite; surfactant-based composite; nanostructured materials; surfactant adhesion; eco-friendly corrosion inhibitors; environmental research; water treatment; recyclable materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce the second edition of “Synthesis, Characterization and Application of Surfactants”. Surfactant science has attracted the attention of researchers from all over the world because of the large extent of surfactants’ application fields (petroleum oil recovery, corrosion inhibitors, drugs, detergents, demulsifiers, etc.), in addition to the more important auxiliary role for surfactants in nanotechnology and catalysis science.

This Special Issue dedicated to “Synthesis, Characterization and Application of Surfactants” will publish scientific contributions in the surfactants area. This comprises the applied science of oleochemical and petrochemical surfactants, as well as the performance and development of surfactants in all applications. Experimental and computational investigations are welcome.

Dr. Hany M. Abd El-Lateef
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • surfactant applications
  • surfactant-based materials
  • imidazoline surfactants
  • polymeric surfactants
  • antioxidant and antibacterial activity
  • corrosion inhibition
  • biodegradation
  • surface activity
  • wastewater treatment

Published Papers (4 papers)

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Research

13 pages, 3638 KiB  
Article
Biocompatible and Biodegradable Surfactants from Orange Peel for Oil Spill Remediation
by Peng Soon Wang, Aqeel Ahmad, Masooma Nazar, Anisa Ur Rahmah and Muhammad Moniruzzaman
Molecules 2023, 28(15), 5794; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules28155794 - 01 Aug 2023
Cited by 4 | Viewed by 1482
Abstract
Oil spill remediation plays a vital role in mitigating the environmental impacts caused by oil spills. The chemical method is one of the widely recognized approaches in chemical surfactants. However, the most commonly used chemical surfactants are toxic and non-biodegradable. Herein, two biocompatible [...] Read more.
Oil spill remediation plays a vital role in mitigating the environmental impacts caused by oil spills. The chemical method is one of the widely recognized approaches in chemical surfactants. However, the most commonly used chemical surfactants are toxic and non-biodegradable. Herein, two biocompatible and biodegradable surfactants were synthesized from orange peel using the ionic liquid 1-butyl-3-methylimidazolium chloride (BMIMCl) and organic solvent dimethylacetamide (CH3CN(CH3)2) as reaction media. The acronyms SOPIL and SOPOS refer to the surfactants prepared with BMIMCl and dimethylacetamide, respectively. The surface tension, dispersant effectiveness, optical microscopy, and emulsion stability test were conducted to examine the comparative performance of the synthesized surfactants. The Baffled flask test (BFT) was carried out to determine the dispersion effectiveness. The toxicity test was performed against zebrafish (Danio rerio), whereas the closed bottle test (CBT) evaluated biodegradability. The results revealed that the critical micelle concentration (CMC) value of SOPIL was lower (8.57 mg/L) than that of SOPOS (9.42 mg/L). The dispersion effectiveness values for SOPIL and SOPOS were 69.78% and 40.30%, respectively. The acute toxicity test demonstrated that SOPIL was ‘practically non-toxic’ with a median lethal concentration of more than 1000 mg/L after 96 h. The biodegradation rate was recorded as higher than 60% for both surfactants within 28 days, demonstrating their readily biodegradable nature. Considering these attributes, biocompatible and biodegradable surfactants derived from orange peel emerge as a promising and sustainable alternative for oil spill remediation. Full article
(This article belongs to the Special Issue Synthesis, Characterization and Application of Surfactants II)
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21 pages, 4507 KiB  
Article
Novel Imine-Tethering Cationic Surfactants: Synthesis, Surface Activity, and Investigation of the Corrosion Mitigation Impact on Carbon Steel in Acidic Chloride Medium via Various Techniques
by Hany M. Abd El-Lateef, Ahmed H. Tantawy, Kamal A. Soliman, Salah Eid and Mohamed A. Abo-Riya
Molecules 2023, 28(11), 4540; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules28114540 - 03 Jun 2023
Cited by 1 | Viewed by 1064
Abstract
Novel imine-tethering cationic surfactants, namely (E)-3-((2-chlorobenzylidene)amino)-N-(2-(decyloxy)-2-oxoethyl)-N,N-dimethylpropan-1-aminium chloride (ICS-10) and (E)-3-((2-chlorobenzylidene)amino)-N,N-dimethyl-N-(2-oxo-2-(tetradecyloxy)ethyl)propan-1-aminium chloride (ICS-14), were synthesized, and the chemical structures were elucidated by various spectroscopic approaches. The surface properties of the target-prepared imine-tethering cationic surfactants were investigated. [...] Read more.
Novel imine-tethering cationic surfactants, namely (E)-3-((2-chlorobenzylidene)amino)-N-(2-(decyloxy)-2-oxoethyl)-N,N-dimethylpropan-1-aminium chloride (ICS-10) and (E)-3-((2-chlorobenzylidene)amino)-N,N-dimethyl-N-(2-oxo-2-(tetradecyloxy)ethyl)propan-1-aminium chloride (ICS-14), were synthesized, and the chemical structures were elucidated by various spectroscopic approaches. The surface properties of the target-prepared imine-tethering cationic surfactants were investigated. The effects of both synthesized imine surfactants on carbon steel corrosion in a 1.0 M HCl solution were investigated by weight loss (WL), potentiodynamic polarization (PDP), and scanning electron microscopy (SEM) methods. The outcomes show that the inhibition effectiveness rises with raising the concentration and diminishes with raising the temperature. The inhibition efficiency of 91.53 and 94.58 % were attained in the presence of the optimum concentration of 0.5 mM of ICS-10 and ICS-14, respectively. The activation energy (Ea) and heat of adsorption (Qads) were calculated and explained. Additionally, the synthesized compounds were investigated using density functional theory (DFT). Monte Carlo (MC) simulation was utilized to understand the mechanism of adsorption of inhibitors on the Fe (110) surface. Full article
(This article belongs to the Special Issue Synthesis, Characterization and Application of Surfactants II)
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14 pages, 2917 KiB  
Article
Cd(II) and Pd(II) Mixed Ligand Complexes of Dithiocarbamate and Tertiary Phosphine Ligands—Spectroscopic, Anti-Microbial, and Computational Studies
by Tohama B. Abdullah, Reza Behjatmanesh-Ardakani, Ahmed S. Faihan, Hayfa M. Jirjes, Mortaga M. Abou-Krisha, Tarek A. Yousef, Sayed H. Kenawy and Ahmed S. M. Al-Janabi
Molecules 2023, 28(5), 2305; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules28052305 - 02 Mar 2023
Cited by 4 | Viewed by 1387
Abstract
Mixed ligand complexes of Pd(II) and Cd(II) with N-picolyl-amine dithiocarbamate (PAC-dtc) as primary ligand and tertiary phosphine ligand as secondary ligands have been synthesized and characterized via elemental analysis, molar conductance, NMR (1H and 31P), and IR techniques. The [...] Read more.
Mixed ligand complexes of Pd(II) and Cd(II) with N-picolyl-amine dithiocarbamate (PAC-dtc) as primary ligand and tertiary phosphine ligand as secondary ligands have been synthesized and characterized via elemental analysis, molar conductance, NMR (1H and 31P), and IR techniques. The PAC-dtc ligand displayed in a monodentate fashion via sulfur atom whereas diphosphine ligands coordinated as a bidentate mode to afford a square planner around the Pd(II) ion or tetrahedral around the Cd(II) ion. Except for complexes [Cd(PAC-dtc)2(dppe)] and [Cd(PAC-dtc)2(PPh3)2], the prepared complexes showed significant antimicrobial activity when evaluated against Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans and Aspergillus niger. Moreover, DFT calculations were performed to investigate three complexes {[Pd(PAC-dtc)2(dppe)](1), [Cd(PAC-dtc)2(dppe)](2), [Cd(PAC-dtc)2(PPh3)2](7)}, and their quantum parameters were evaluated using the Gaussian 09 program at the B3LYP/Lanl2dz theoretical level. The optimized structures of the three complexes were square planar and tetrahedral geometry. The calculated bond lengths and bond angles showed a slightly distorted tetrahedral geometry for [Cd(PAC-dtc)2(dppe)](2) compared to [Cd(PAC-dtc)2(PPh3)2](7) due to the ring constrain in the dppe ligand. Moreover, the [Pd(PAC-dtc)2(dppe)](1) complex showed higher stability compared to Cd(2) and Cd(7) complexes which can be attributed to the higher back-donation of Pd(1) complex. Full article
(This article belongs to the Special Issue Synthesis, Characterization and Application of Surfactants II)
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19 pages, 2063 KiB  
Article
Design, Synthesis, Docking Study, and Antiproliferative Evaluation of Novel Schiff Base–Benzimidazole Hybrids with VEGFR-2 Inhibitory Activity
by Hany M. Abd El-Lateef, Mohammed A. I. Elbastawesy, Tamer Mohamed Abdelghani Ibrahim, Mai M. Khalaf, Mohamed Gouda, Mariam G. F. Wahba, Islam Zaki and Martha M. Morcoss
Molecules 2023, 28(2), 481; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules28020481 - 04 Jan 2023
Cited by 5 | Viewed by 1689
Abstract
A new series of Schiff–benzimidazole hybrids 3a–o has been designed and synthesized. The structure of the target compounds was proved by different spectroscopic and elemental analysis tools. The target compounds were evaluated for their in vitro cytotoxic activity against 60 cancer [...] Read more.
A new series of Schiff–benzimidazole hybrids 3a–o has been designed and synthesized. The structure of the target compounds was proved by different spectroscopic and elemental analysis tools. The target compounds were evaluated for their in vitro cytotoxic activity against 60 cancer cell lines according to NCI single- and five-dose protocols. Consequently, four compounds were further examined against the most sensitive lung cancer A549 and NCI-H460 cell lines. Compounds 3e and 3g were the most active, achieving 3.58 ± 0.53, 1.71 ± 0.17 and 1.88 ± 0.35, 0.85 ± 0.24 against A549 and NCI-H460 cell lines, respectively. Moreover, they showed remarkable inhibitory activity on the VEGFR-2 TK with 86.23 and 89.89%, respectively, as compared with Sorafenib (88.17%). Moreover, cell cycle analysis of NCI-H460 cells treated with 3e and 3g showed cellular cycle arrest at both G1 and S phases (supported by caspases-9 study) with significant pro-apoptotic activity, as indicated by annexin V-FITC staining. The binding interactions of these compounds were confirmed through molecular docking studies; the most active compounds displayed complete overlay with, and a similar binding mode and pose to, Sorafenib, a reference VEGFR-2 inhibitor. Full article
(This article belongs to the Special Issue Synthesis, Characterization and Application of Surfactants II)
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