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Recent Development of Surface Chemistry of Nanomaterials
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Recent Development of Surface Chemistry of Nanomaterials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (20 July 2023) | Viewed by 12617

Special Issue Editor

Dr. Anwar Ahniyaz

E-Mail Website
Guest Editor
RISE Research Institutes of Sweden, Drottning Kristinas väg 45|Box 5607, SE-114 86 Stockholm, Sweden
Interests: nanotechnology; nanomaterials; nanoparticles; surface chemistry; surface modification; materials science

Special Issue Information

Dear Colleagues,

Nanomaterials (nanoparticles, nanostructures, nonporous materials, liposomes) process a large surface area, and thus surface properties of nanomaterials play a critical role in enabling various desired functions of nanomaterials.

Surface modification of nanomaterials with a suitable surface modifier can tailor the surface properties in a way that enhances their dispersibility, function, reactivity, and their interaction with themselves as well as the surrounding environment.

Therefore, this Special Issue addresses topics relevant to nanomaterial surface modification including methods. Chemistry, theory, and characterization. You are welcome to submit original manuscripts or review articles that focus on surface modification of nanomaterials including topics such as hydrophilic/hydrophobic/omni phobic surface modification of nanomaterials; surface functionalization (anionic, cationic, or neutral; surface-charge engineering; reactive surface modification; aqueous and non-aqueous dispersion of nanomaterials, colloidal stability, and formulation of such surface-modified nanomaterials in composites, coatings, inks and materials, etc.

Recent developments in the theory and modeling of nanomaterials surface modification and their applications including toxicity and environmental fate of surface-modified nanomaterials and characterization methods can be also discussed.

Finally, the scope of the current issue can also be extended into the self-assembly of nanoscale materials enabled by surface modification. This can include self-assembled structures with interesting electronic, magnetic, electric, optical, or mechanical properties.

Dr. Anwar Ahniyaz
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. Materials 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 2600 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

  • nanomaterials
  • surface modification
  • functionalization
  • dispersion
  • nanoparticles
  • nanoporous materials
  • self-assembly
  • surface chemistry
  • collloids

Published Papers (6 papers)

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Research

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11 pages, 3470 KiB  
Article
Bi-Functionalized Transferrin@MoS2-PEG Nanosheets for Improving Cellular Uptake in HepG2 Cells
by Si Xu, Shanshan Liang, Bing Wang, Jiali Wang, Meng Wang, Lingna Zheng, Hao Fang, Tingfeng Zhang, Yi Bi and Weiyue Feng
Materials 2023, 16(6), 2277; https://doi.org/10.3390/ma16062277 - 12 Mar 2023
Viewed by 1273
Abstract
Pre-coating with a protein corona on the surface of nanomaterials (NMs) is an important strategy for reducing non-specific serum protein absorption while maintaining targeting specificity. Here, we present lipoic acid-terminated polyethylene glycol and transferrin bi-functionalized MoS2 nanosheets (Tf@MoS2-PEG NSs) as [...] Read more.
Pre-coating with a protein corona on the surface of nanomaterials (NMs) is an important strategy for reducing non-specific serum protein absorption while maintaining targeting specificity. Here, we present lipoic acid-terminated polyethylene glycol and transferrin bi-functionalized MoS2 nanosheets (Tf@MoS2-PEG NSs) as a feasible approach to enhance cellular uptake. Tf@MoS2-PEG NSs can maintain good dispersion stability in cell culture medium and effectively protect MoS2 NSs from oxidation in ambient aqueous conditions. Competitive adsorption experiments indicate that transferrin was more prone to bind MoS2 NSs than bovine serum albumin (BSA). It is noteworthy that single HepG2 cell uptake of Tf@MoS2-PEG presented a heterogeneous distribution pattern, and the cellular uptake amount spanned a broader range (from 0.4 fg to 2.4 fg). Comparatively, the intracellular Mo masses in HepG2 cells treated with BSA@MoS2-PEG and MoS2-PEG showed narrower distribution, indicating homogeneous uptake in the single HepG2 cells. Over 5% of HepG2 cells presented uptake of the Tf@MoS2-PEG over 1.2 fg of Mo, about three-fold that of BSA@MoS2-PEG (0.4 fg of Mo). Overall, this work suggests that Tf coating enhances the cellular uptake of MoS2 NSs and is a promising strategy for improving the intracellular uptake efficiency of cancer cells. Full article
(This article belongs to the Special Issue Recent Development of Surface Chemistry of Nanomaterials)
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11 pages, 3082 KiB  
Article
Effect of Poly(vinyl alcohol) Concentration on the Micro/Mesopore Structure of SBA15 Silica
by Seongmin Kim, Minuk Jung, Seongsoo Han, Ho-Seok Jeon and Yosep Han
Materials 2022, 15(24), 8900; https://doi.org/10.3390/ma15248900 - 13 Dec 2022
Viewed by 1019
Abstract
In this work, a series of micro/mesoporous SBA15 silica materials were synthesized using P123 and poly(vinyl alcohol) (PVA) as co-templates. The pore structure of the prepared SBA15 was observed to be a function of the PVA concentration. When the amount of PVA was [...] Read more.
In this work, a series of micro/mesoporous SBA15 silica materials were synthesized using P123 and poly(vinyl alcohol) (PVA) as co-templates. The pore structure of the prepared SBA15 was observed to be a function of the PVA concentration. When the amount of PVA was relatively small, the specific surface area, micropore volume, and pore wall thickness of the synthesized SBA15 were considerably large. By contrast, when a large amount of PVA was added, the pore wall thickness was greatly reduced, but the mesopore volume and size increased. This is because the added PVA interacted with the polyethylene oxide (PEO) in the shells of the P123 micelles. Furthermore, when the amount of PVA was increased, the core polypropylene oxide (PPO) block also increased, owing to the enhanced aggregation of the P123/PVA mixed micelles. This research contributes to a basic comprehension of the cooperative interactions and formation process underlying porous silica materials, assisting in the rational design and synthesis of micro/mesoporous materials. Full article
(This article belongs to the Special Issue Recent Development of Surface Chemistry of Nanomaterials)
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12 pages, 4840 KiB  
Article
Superhydrophobic PDMS-pCA@CNWF Composite with UV-Resistant and Self-Cleaning Properties for Oil/Water Separation
by Hanyu Wen, Yu-I Hsu and Hiroshi Uyama
Materials 2022, 15(1), 376; https://doi.org/10.3390/ma15010376 - 05 Jan 2022
Cited by 3 | Viewed by 1966
Abstract
Oil separation is crucial for avoiding environmental pollution originating from industrial wastewater and oil spillage; therefore, it is essential to develop techniques for oil separation. Herein, a new membrane with superhydrophilicity was synthesized by a facile, green, and low-cost method. First, cellulose non-woven [...] Read more.
Oil separation is crucial for avoiding environmental pollution originating from industrial wastewater and oil spillage; therefore, it is essential to develop techniques for oil separation. Herein, a new membrane with superhydrophilicity was synthesized by a facile, green, and low-cost method. First, cellulose non-woven fabric (CNWF) was modified by poly (catechin) (pCA), which has good antioxidant and antibacterial activities, to make it unaffected by ultraviolet light and to improve the stability of the structure. Then, hydrolyzed polydimethylsiloxane (PDMS) was coated on the pCA@CNWF surface via chemical bonding to make the composite hydrophobic. This durable superhydrophobic fabric can be used to separate various oil/water mixtures by gravity-driven forces with high separation efficiency (over 98.9%). Additionally, the PDMS-pCA@CNWF possesses the advantages of flexibility, high efficiency, and an outstanding self-cleaning performance, and demonstrates significant potential for applications in various environments, even under various harsh conditions, which make it very promising for the treatment of oil pollution in practical applications. Full article
(This article belongs to the Special Issue Recent Development of Surface Chemistry of Nanomaterials)
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17 pages, 14741 KiB  
Article
Colloidal Shear-Thickening Fluids Using Variable Functional Star-Shaped Particles: A Molecular Dynamics Study
by Rofiques Salehin, Rong-Guang Xu and Stefanos Papanikolaou
Materials 2021, 14(22), 6867; https://doi.org/10.3390/ma14226867 - 14 Nov 2021
Cited by 3 | Viewed by 1641
Abstract
Complex colloidal fluids, depending on constituent shapes and packing fractions, may have a wide range of shear-thinning and/or shear-thickening behaviors. An interesting way to transition between different types of such behavior is by infusing complex functional particles that can be manufactured using modern [...] Read more.
Complex colloidal fluids, depending on constituent shapes and packing fractions, may have a wide range of shear-thinning and/or shear-thickening behaviors. An interesting way to transition between different types of such behavior is by infusing complex functional particles that can be manufactured using modern techniques such as 3D printing. In this paper, we perform 2D molecular dynamics simulations of such fluids with infused star-shaped functional particles, with a variable leg length and number of legs, as they are infused in a non-interacting fluid. We vary the packing fraction (ϕ) of the system, and for each different system, we apply shear at various strain rates, turning the fluid into a shear-thickened fluid and then, in jammed state, rising the apparent viscosity of the fluid and incipient stresses. We demonstrate the dependence of viscosity on the functional particles’ packing fraction and we show the role of shape and design dependence of the functional particles towards the transition to a shear-thickening fluid. Full article
(This article belongs to the Special Issue Recent Development of Surface Chemistry of Nanomaterials)
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26 pages, 17355 KiB  
Article
Modeling, Optimization and Performance Evaluation of TiC/Graphite Reinforced Al 7075 Hybrid Composites Using Response Surface Methodology
by Mohammad Azad Alam, Hamdan H. Ya, Mohammad Yusuf, Ramaneish Sivraj, Othman B. Mamat, Salit M. Sapuan, Faisal Masood, Bisma Parveez and Mohsin Sattar
Materials 2021, 14(16), 4703; https://doi.org/10.3390/ma14164703 - 20 Aug 2021
Cited by 27 | Viewed by 2850
Abstract
The tenacious thirst for fuel-saving and desirable physical and mechanical properties of the materials have compelled researchers to focus on a new generation of aluminum hybrid composites for automotive and aircraft applications. This work investigates the microhardness behavior and microstructural characterization of aluminum [...] Read more.
The tenacious thirst for fuel-saving and desirable physical and mechanical properties of the materials have compelled researchers to focus on a new generation of aluminum hybrid composites for automotive and aircraft applications. This work investigates the microhardness behavior and microstructural characterization of aluminum alloy (Al 7075)-titanium carbide (TiC)-graphite (Gr) hybrid composites. The hybrid composites were prepared via the powder metallurgy technique with the amounts of TiC (0, 3, 5, and 7 wt.%), reinforced to Al 7075 + 1 wt.% Gr. The microstructural characteristics were investigated by optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS) elemental mapping. A Box Behnken design (BBD) response surface methodology (RSM) approach was utilized for modeling and optimization of density and microhardness independent parameters and to develop an empirical model of density and microhardness in terms of process variables. Effects of independent parameters on the responses have been evaluated by analysis of variance (ANOVA). The density and microhardness of the Al 7075-TiC-Gr hybrid composites are found to be increased by increasing the weight percentage of TiC particles. The optimal conditions for obtaining the highest density and microhardness are estimated to be 6.79 wt.% TiC at temperature 626.13 °C and compaction pressure of 300 Mpa. Full article
(This article belongs to the Special Issue Recent Development of Surface Chemistry of Nanomaterials)
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Review

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35 pages, 3416 KiB  
Review
A Review of Key Properties of Thermoelectric Composites of Polymers and Inorganic Materials
by Nathan D. Wood, Lisa J. Gillie, David J. Cooke and Marco Molinari
Materials 2022, 15(23), 8672; https://doi.org/10.3390/ma15238672 - 05 Dec 2022
Cited by 4 | Viewed by 2829
Abstract
This review focusses on the development of thermoelectric composites made of oxide or conventional inorganic materials, and polymers, with specific emphasis on those containing oxides. Discussion of the current state-of-the-art thermoelectric materials, including the individual constituent materials, i.e., conventional materials, oxides and polymers, [...] Read more.
This review focusses on the development of thermoelectric composites made of oxide or conventional inorganic materials, and polymers, with specific emphasis on those containing oxides. Discussion of the current state-of-the-art thermoelectric materials, including the individual constituent materials, i.e., conventional materials, oxides and polymers, is firstly presented to provide the reader with a comparison of the top-performing thermoelectric materials. Then, individual materials used in the inorganic/polymer composites are discussed to provide a comparison of the performance of the composites themselves. Finally, the addition of carbon-based compounds is discussed as a route to improving the thermoelectric performance. For each topic discussed, key thermoelectric properties are tabulated and comparative figures are presented for a wide array of materials. Full article
(This article belongs to the Special Issue Recent Development of Surface Chemistry of Nanomaterials)
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