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Organic Nanomaterials: Synthesis and Applications
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Organic Nanomaterials: Synthesis and Applications

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

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 7635

Special Issue Editors

Dr. Francisco J.R. Mejías

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Guest Editor
Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), Facultad de Ciencias, University of Cadiz, c/ Avenida República Saharaui, 7, 11510 Puerto Real, Spain
Interests: natural products formulation; in silico modes of action; allelopathy
Special Issues, Collections and Topics in MDPI journals
Dr. Jesús G. Zorrilla

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Guest Editor
Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), Facultad de Ciencias, University of Cadiz, c/ Avenida República Saharaui 7, 11510 Puerto Real, Spain
Interests: bioactive natural products; organic chemistry; allelopathy
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Francisco A. Macias

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Guest Editor
Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), Campus de Excelencia Internacional (ceiA3), School of Science, University of Cadiz, 11510 Puerto Real, Spain
Interests: medicinal chemistry; organic chemistry; organic nanomaterials; phytochemistry; agricultural plant science; plant protection and animal health; ecology; nanomaterial application
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The synthesis of nanomaterials is a relevant technique within chemistry, with applicability in different fields. This is known by all researchers because of the interesting properties offered at the nanoscale. Several years ago, the use of fully organic nanomaterials attracted researchers’ interest thanks to the possibility of more biocompatible, easily degraded, and environmentally friendly nanostructures. The synthesis processes of these compounds represent a great challenge, since they must offer simplicity and short execution time so that they can be applied on a large scale. In addition, thanks to all the possible applications they offer, such as medicine, energy, agriculture, or ecology, more and more resources are being invested in them. Usually, these organic nanomaterials have interesting applications on their own, but in other cases, they can be useful because of their ability to transport other compounds, either on the surface or on the inside. Their uses as drug or herbicide carriers and as gas storage for energy production are the main examples that demonstrate the importance of organic nanomaterials.

This Special Issue will collect studies and reviews on the synthesis, characterization, and application of organic nanomaterials, both with biological activities and with potential application in other fields.

Dr. Francisco J.R. Mejías
Dr. Jesús G. Zorrilla
Prof. Dr. Francisco A. Macias
Guest Editors

Manuscript Submission Information

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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

  • organic nanoparticles
  • nanomaterial
  • nanobiomaterial
  • encapsulation drugs
  • nanodrugs
  • organic nanostructure
  • organic nanotubes
  • MOFs
  • COFs

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Published Papers (4 papers)

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Research

22 pages, 14729 KiB  
Article
Rational Design and Multicomponent Synthesis of Lipid–Peptoid Nanocomposites towards a Customized Drug Delivery System Assembly
by Thaissa Pasquali F. Rosalba, Guilherme D. R. Matos, Carlos Eduardo M. Salvador and Carlos Kleber Z. Andrade
Molecules 2023, 28(15), 5725; https://doi.org/10.3390/molecules28155725 - 28 Jul 2023
Cited by 2 | Viewed by 1260
Abstract
Nanotechnology has assumed a significant role over the last decade in the development of various technologies applied to health sciences. This becomes even more evident with its application in controlled drug delivery systems. In this context, peptoids are a promising class of compounds [...] Read more.
Nanotechnology has assumed a significant role over the last decade in the development of various technologies applied to health sciences. This becomes even more evident with its application in controlled drug delivery systems. In this context, peptoids are a promising class of compounds for application as nanocarriers in drug delivery systems. These compounds can be obtained efficiently and with highly functionalized structural diversity via the Ugi 4-component reaction (U-4CR). Herein, we report the design of the process control strategy for the future development of lipid–peptoid-based customized drug delivery system assemblies. Over 20 lipid–peptoid nanocomposites were synthesized via the U-4CR in good to excellent yields. These products were successfully submitted to the nanoparticle formation by the emulsification–evaporation process from lipophilic solution and analyzed via Dynamic Light Scattering (DLS). Several molecules generated nanoparticles with a size ≤200 nm, making them good candidates for drug delivery systems, such as in cancer treatment. Full article
(This article belongs to the Special Issue Organic Nanomaterials: Synthesis and Applications)
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17 pages, 8497 KiB  
Article
Biosynthesis of Silver Nanoparticles and Exploring Their Potential of Reducing the Contamination of the In Vitro Culture Media and Inducing the Callus Growth of Rumex nervosus Explants
by Norah S. Alfarraj, Mohamed Tarroum, Fahad Al-Qurainy, Mohammad Nadeem, Salim Khan, Abdalrhaman M. Salih, Hassan O. Shaikhaldein, Abdulrahman Al-Hashimi, Saleh Alansi and Kahkashan Perveen
Molecules 2023, 28(9), 3666; https://doi.org/10.3390/molecules28093666 - 23 Apr 2023
Cited by 9 | Viewed by 2115
Abstract
Among biological methods, green synthesis of the nanomaterials using plant extracts was shown to be an environmentally friendly, economical, and simple approach. In the current study, the biogenic synthesis of silver nanoparticles (AgNPs) was achieved using the leaf extract of Hibiscus tiliaceus, [...] Read more.
Among biological methods, green synthesis of the nanomaterials using plant extracts was shown to be an environmentally friendly, economical, and simple approach. In the current study, the biogenic synthesis of silver nanoparticles (AgNPs) was achieved using the leaf extract of Hibiscus tiliaceus, in order to prevent the contamination of the tissue culture media and induce callus growth. The nanostructures of the fabricated AgNPs were characterized using UV–visible spectroscopy, Fourier transform infra-red spectra (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), zeta size, and zeta potential techniques. Our results indicate that The UV–vis spectrum of AgNPs exhibited an absorption band at 415 nm. The FTIR analysis identified the functional groups which could involve in the reduction of silver ions to AgNPs, this was also confirmed by the (hkl) diffraction peaks in the XRD diffractogram. Moreover, the TEM analysis showed a spherical nanoparticle with a size ranging from 21 and 26 nm. Thereafter, the potential antibacterial and antifungal activity of the biogenic AgNPs was evaluated against Bacillus pumilus and Alternaria alternata which were isolated from the in vitro culture media and identified based on 16S rDNA and ITS rDNA sequences, respectively. The results showed that the AgNPs significantly inhibited the growth of Alternaria alternata and Bacillus pumilus at all applied concentrations (5, 10, 20 and 40 mg/L). Compared to the control more fungal radial growth reduction (42.59%,) and bacterial inhibition (98.12%) were registered in the plates containing high doses of AgNPs (40 mg/L). Using Rumex nervosus explants, the biosynthesized AgNPs were tested for their impact to promote callus growth. The obtained results showed a significant effect of AgNPs on callus fresh weight at all applied doses. Moreover, AgNPs treatments showed a polymorphism of 12.5% which was detected by RAPD markers. In summary, the results revealed that AgNPs (40 mg/L) can be effectively added to the in vitro culture media for reducing microbial contamination and improving callus growth while greatly maintaining its genetic stability. Full article
(This article belongs to the Special Issue Organic Nanomaterials: Synthesis and Applications)
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14 pages, 1136 KiB  
Article
Methyl Jasmonate and Nanoparticles Doped with Methyl Jasmonate affect the Cell Wall Composition of Monastrell Grape Skins
by María José Giménez-Bañón, Diego Fernando Paladines-Quezada, Juan Daniel Moreno-Olivares, Juan Antonio Bleda-Sánchez, José Ignacio Fernández-Fernández, Belén Parra-Torrejón, Gloria Belén Ramírez-Rodríguez, José Manuel Delgado-López and Rocío Gil-Muñoz
Molecules 2023, 28(3), 1478; https://doi.org/10.3390/molecules28031478 - 3 Feb 2023
Cited by 2 | Viewed by 1720
Abstract
The structural composition of the cell wall of grape skins is related to the cell wall integrity and subsequent extraction of the different compounds that are contained inside vacuoles and also the cell wall breakdown products. Different reports have established that methyl jasmonate [...] Read more.
The structural composition of the cell wall of grape skins is related to the cell wall integrity and subsequent extraction of the different compounds that are contained inside vacuoles and also the cell wall breakdown products. Different reports have established that methyl jasmonate (MeJ) produces changes in the composition of the grape skin cell wall. The use of elicitors to promote the production of secondary metabolites in grapes has been studied in several reports; however, its study linked to nanotechnology is less developed. These facts led us to study the effect of methyl jasmonate (MeJ) and nanoparticles doped with MeJ (nano-MeJ) on the cell walls of Monastrell grapes during three seasons. Both treatments tended to increase cell wall material (CWM) and caused changes in different components of the skin cell walls. In 2019 and 2021, proteins were enlarged in both MeJ and nano-MeJ-treated grapes. A general decrease in total phenolic compounds was detected with both treatments, in addition to an increment in uronic acids when the grapes were well ripened. MeJ and nano-MeJ produced a diminution in the amount of cellulose in contrast to an increase in hemicellulose. It should be noted that the effects with nano-MeJ treatment occurred at a dose 10 times lower than with MeJ treatment. Full article
(This article belongs to the Special Issue Organic Nanomaterials: Synthesis and Applications)
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14 pages, 2543 KiB  
Article
The Role of Nanoengineered Biochar Activated with Fe for Sulfanilamide Removal from Soils and Water
by Beatriz Gámiz, Pilar Velarde, Kurt A. Spokas and Lucía Cox
Molecules 2022, 27(21), 7418; https://doi.org/10.3390/molecules27217418 - 1 Nov 2022
Cited by 3 | Viewed by 1796
Abstract
Biochar is a nanoengineered sorbent proposed to control the contamination derived from the presence of residual concentrations of sulfonamides in soil. In this work, we evaluated the sorption of sulfanilamide (SFA) in commercial biochar (BC) produced at 500 °C from oak hardwood ( [...] Read more.
Biochar is a nanoengineered sorbent proposed to control the contamination derived from the presence of residual concentrations of sulfonamides in soil. In this work, we evaluated the sorption of sulfanilamide (SFA) in commercial biochar (BC) produced at 500 °C from oak hardwood (Quercus ilex) and its analog activated with 2% (w/w) Fe (BC-Fe). Subsequently, the effect on dissipation and transport of SFA in untreated soil and soil treated with BC and BC-Fe was also assessed. Laboratory batch studies revealed that BC-Fe increased the sorption of SFA as compared to the pristine BC with Kd of 278 and 98 L/kg, respectively. The dissipation of SFA in either untreated soil or soil treated with BC or BC-Fe was similar, displaying half-lives ranging between 4 and 6.4 days. Conversely, the concurrent determination of sorption during the incubation experiment showed that lower amounts of SFA in solution at the beginning of the experiments were bioavailable in BC-Fe-treated soil when compared to the rest of the treatments shortly after application. Leaching column studies confirmed the amendment’s capability to bind the SFA compound. Therefore, the decrease in bioavailability and movement of SFA in treated soils suggest that biochar soil application can reduce SFA soil and water contamination. According to our results, BC surface modification after Fe activation may be more appropriate for water decontamination than for soil since there were no significant differences between the two types of biochar when added to the soil. Therefore, these outcomes should be considered to optimize the SFA mitigation potential of biochar. Full article
(This article belongs to the Special Issue Organic Nanomaterials: Synthesis and Applications)
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