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Colloids and Interfaces
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Colloids Science in Asia
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Colloids Science in Asia

A special issue of Colloids and Interfaces (ISSN 2504-5377).

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 13615

Special Issue Editors

Dr. Abhijit Dan

E-Mail Website
Guest Editor
Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, India
Interests: physical chemistry of soft materials; microgels; nanomaterials; interfacial adsorption dynamics; liquid crystalline interfaces; Pickering emulsions
Prof. Dr. Aruna Dhathathreyan

E-Mail Website
Guest Editor
AcSIR, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
Interests: interfacial properties of biomolecules; protein colloids; Pickering emulsions; adsorption and mechanical properties of cells at different surfaces

Special Issue Information

Dear Colleagues,

Colloid science is an important area of knowledge describing systems where molecular and nanoscale phenomena impart key properties. Colloidal phenomena are related to the adsorption, aggregation, and self-assembly of material dispersions, where the interactions between phases and at interfaces are dominant aspects of the system behavior. Colloid and interface science has a critical role in the industrial design and manufacture of almost any chemical and many bio-industry “finished” products (e.g., medicines and biocides, foods, personal care and household care products, ceramics and composites, paints and coatings). They are also key ingredients for the so-called ‘nanotechnology revolution’.

Recent advances in colloid and interface science have enabled the development of new functional materials to address social needs and to establish a smart and sustainable society. Owing to the growing interest and importance of modern colloid and interface science in Asian countries, we invite researchers to contribute original research articles and review articles dealing with all aspects of colloids in Asia. This Special Issue of Colloids and Interfaces is devoted (but not limited) to current topics in colloidal science, including nano-/biotechnology, self-assembly, polymers, and composite materials and their applications in cosmetics, personal care products, delivery systems, microelectronics, pharmaceutics, and bioengineering. In addition, original basic research on the chemical, biological, and pharmacological activities of small molecules, polymeric materials, and compounds obtained from natural sources are welcome. Thus, this Special Issue will help to solve the existing problems within the regional scientific community.

Dr. Abhijit Dan
Prof. Dr. Aruna Dhathathreyan
Guest Editors

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. Colloids and Interfaces 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 1600 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

  • Polymers 
  • Surfactants 
  • Nanomaterials 
  • Emulsions 
  • Liquid crystals 
  • Complex fluids 
  • Self-assembly 
  • Adsorption 
  • Interaction 
  • Food colloids 
  • Biocolloids

Published Papers (4 papers)

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Research

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10 pages, 1922 KiB  
Communication
Boosting Water Oxidation Activity via Carbon–Nitrogen Vacancies in NiFe Prussian Blue Analogue Electrocatalysts
by Meng Zhang, Wenjie Wu, Zhen Wang, Gang Xie and Xiaohui Guo
Colloids Interfaces 2023, 7(1), 14; https://doi.org/10.3390/colloids7010014 - 10 Feb 2023
Cited by 2 | Viewed by 1644
Abstract
The development of electrocatalysts for oxygen evolution reactions (OERs) is of great significance for hydrogen production. Defect engineering is an effective strategy to improve the OER performance of electrocatalyst by regulating the local electronic and atomic structures of electrocatalysts. Here, we successfully synthesized [...] Read more.
The development of electrocatalysts for oxygen evolution reactions (OERs) is of great significance for hydrogen production. Defect engineering is an effective strategy to improve the OER performance of electrocatalyst by regulating the local electronic and atomic structures of electrocatalysts. Here, we successfully synthesized defective Prussian blue analogues (PBAs) with rich CN vacancies (D-NiFe PBA) as efficient OER electrocatalysts. The optimized D-NiFe PBA exhibited an overpotential of 280 mV at 10 mA cm−2 and a superior stability for over 100 h in KOH electrolytes. The formation of CN vacancies in the NiFe PBA could effectively inhibit the loss of Fe active sites, promote the reconstruction of the NiFe oxygen (hydroxide) active layer in the OER process, and further improve the electrocatalytic activity and stability of the VCN-NiFe PBA. This work presents a feasible approach for the wide application of vacancy defects in PBA electrocatalysts. Full article
(This article belongs to the Special Issue Colloids Science in Asia)
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14 pages, 6160 KiB  
Article
Fabrication of Polystyrene/AlOOH Hybrid Material for Pb(II) Decontamination from Wastewater: Isotherm, Kinetic, and Thermodynamic Studies
by Rajeev Kumar
Colloids Interfaces 2022, 6(4), 72; https://doi.org/10.3390/colloids6040072 - 24 Nov 2022
Cited by 2 | Viewed by 1359
Abstract
The nanomaterials’ toxicity to aquatic life is a big issue due to improper handling or incomplete separation after use. The immobilization of the nanomaterials in the polymeric matrix could be a practical approach to developing an efficient hybrid composite for wastewater purification. In [...] Read more.
The nanomaterials’ toxicity to aquatic life is a big issue due to improper handling or incomplete separation after use. The immobilization of the nanomaterials in the polymeric matrix could be a practical approach to developing an efficient hybrid composite for wastewater purification. In this study, AlOOH nanoparticles were immobilized in the polystyrene polymeric matrix to prepare an effective adsorbent to scavenge the Pb(II) from the aqueous solution. The synthesized polystyrene/AlOOH (PS/AlOOH) hybrid was characterized using microscopic techniques coupled with elemental mapping and EDX, X-ray diffraction, and a furrier-transformed infrared spectrometer. The results revealed that the Pb(II) adsorption onto the polystyrene/AlOOH composite depends on the solution pH, the Pb(II) concentrations in the solution, the adsorption time, and the solute temperature. The maximum scavenging of Pb(II) occurs at pH 6 in 90 min. The adsorption of Pb(II) onto PS/AlOOH decreases from 97.7% to 58.5% with the increase in the Pb(II) concentration from 20 mg g−1 to 100 mg g−1. The kinetics and isotherm modeling demonstrated that Pb(II) adsorption is well suited for the pseudo-second-order kinetics and Toth isotherm models, suggesting that the chemisorption occurs at the heterogeneous surface of PS/AlOOH. The PS/AlOOH composite could be used multiple times without a significant loss in the adsorption efficiency. These results demonstrated that the polystyrene/AlOOH composite is an effective material for the purification of wastewater and can be used on a large scale. Full article
(This article belongs to the Special Issue Colloids Science in Asia)
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Review

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17 pages, 4892 KiB  
Review
Sequestration of Drugs from Biomolecular and Biomimicking Environments: Spectroscopic and Calorimetric Studies
by Rahul Yadav, Bijan Kumar Paul and Saptarshi Mukherjee
Colloids Interfaces 2023, 7(3), 51; https://doi.org/10.3390/colloids7030051 - 14 Jul 2023
Viewed by 1575
Abstract
The binding of drugs to nucleic acids, proteins, lipids, amino acids, and other biological receptors is necessary for the transportation of drugs. However, various side effects may also originate if the bound drug molecules are not dissociated from the carrier, especially with the [...] Read more.
The binding of drugs to nucleic acids, proteins, lipids, amino acids, and other biological receptors is necessary for the transportation of drugs. However, various side effects may also originate if the bound drug molecules are not dissociated from the carrier, especially with the aid of non-toxic agents. The sequestration of small drug molecules bound to biomolecules is thus central to counter issues related to drug overdose and drug detoxification. In this article, we aim to present several methods used for the dissociation of small drug molecules bound to different biological and biomimicking assemblies under in vitro experimental conditions. To this effect, the application of various molecular assemblies, like micelles, mixed micelles, molecular containers, like β-cyclodextrin, cucurbit[7]uril hydrate, etc., has been discussed. Herein, we also try to shed light on the driving forces underlying such sequestration processes through spectroscopic and calorimetric techniques. Full article
(This article belongs to the Special Issue Colloids Science in Asia)
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38 pages, 6340 KiB  
Review
An Overview of Coacervates: The Special Disperse State of Amphiphilic and Polymeric Materials in Solution
by Satya Priya Moulik, Animesh Kumar Rakshit, Animesh Pan and Bappaditya Naskar
Colloids Interfaces 2022, 6(3), 45; https://doi.org/10.3390/colloids6030045 - 06 Sep 2022
Cited by 21 | Viewed by 7994
Abstract
Individual amphiphiles, polymers, and colloidal dispersions influenced by temperature, pH, and environmental conditions or interactions between their oppositely charged pairs in solvent medium often produce solvent-rich and solvent-poor phases in the system. The solvent-poor denser phase found either on the top or the [...] Read more.
Individual amphiphiles, polymers, and colloidal dispersions influenced by temperature, pH, and environmental conditions or interactions between their oppositely charged pairs in solvent medium often produce solvent-rich and solvent-poor phases in the system. The solvent-poor denser phase found either on the top or the bottom of the system is called coacervate. Coacervates have immense applications in various technological fields. This review comprises a concise introduction, focusing on the types of coacervates, and the influence of different factors in their formation, structures, and stability. In addition, their physicochemical properties, thermodynamics of formation, and uses and multifarious applications are also concisely presented and discussed. Full article
(This article belongs to the Special Issue Colloids Science in Asia)
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