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Nanomaterials
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Nanomaterials and Nanotechnology Meeting 2021
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Nanomaterials and Nanotechnology Meeting 2021

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 12788

Special Issue Editors

Prof. Dr. Josef Jampilek

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Guest Editor
1. Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 84215 Bratislava, Slovakia
2. Department of Chemical Biology, Faculty of Science, Palacky University, Olomouc, Slechtitelu 27, 78371 Olomouc, Czech Republic
Interests: medicinal chemistry; drug design; structure–activity relationships; pharmaceutical analysis; polymorphism; drug bioavailability; ADME; nanoparticles; nanoformulations; controlled/targeted delivery
Special Issues, Collections and Topics in MDPI journals
Dr. Daniela Placha

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Guest Editor
1. Nanotechnology Centre, CEET, VSB—Technical University of Ostrava, Ostrava, Czech Republic
2. Centre ENET, CEET, VSB—Technical University of Ostrava, Ostrava, Czech Republic
Interests: organic chemistry; organic analysis; mass spectrometry; nanoparticles; antimicrobial materials; polymer nanocomposites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The traditional seventh international biennial symposium “Nanomaterials and Nanotechnology Meeting”, known as the NanoOstrava Meeting (NOM), will take place in this turbulent “COVID-19 period”; namely, the symposium will be fully virtual. The expected date of the conference to which we would like to invite you is May 2021. The symposium is traditionally organized in cooperation with scientists from the Nanotechnology Centre, the Energy and Environmental and Technology Centre of the VŠB-TU Ostrava (Czech Republic), and the Institute of Geonics of the Academy of Sciences of the Czech Republic. This high-quality series of meetings covers all areas of the nanosciences.

The aim of NOM-2021 is to support cooperation between scientists and to develop a platform to facilitate open discussions between scientists, students and representatives from industry from European and other countries with an interest in the development of nanomaterials and nanotechnology. Excellent speakers from all over the world will present their results within individual sections of NOM-2021. For all the details, please see http://www.nanoostrava.cz/.

The participants of the conference are cordially invited to contribute original research papers or reviews to this Special Issue of Nanomaterials, which was created specifically for this conference. Given the pandemic situation and the hospitality of the Editorial Office of the journal, we can announce that this issue is open to all scientists in the respective fields without the condition of attending this conference, although, as mentioned above, the virtual (online) conference is planned. Unfortunately, those who do not attend the conference cannot use a discount for their submission, as mentioned below.

Therefore, we invite scientists from all over the world, whose scientific fields cover some of the keywords below, not to hesitate and to participate in this Special Issue of Nanomaterials called “Nanomaterials and Nanotechnology Meeting 2021”.

Prof. Dr. Josef Jampilek
Dr. Daniela Placha
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. Nanomaterials 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 2900 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

  • Natural and synthetic nanoparticles
  • Preparation of nanostructured materials
  • Biocompatible and biodegradable nanomaterials
  • Nanocoatings and functionalization of nanomaterials
  • Techniques for characterization in nanotechnology
  • Testing methods for nanomaterials
  • Nano-drug delivery and therapeutics
  • Cancer nanotechnology
  • Nanopharmacology
  • Nanotoxicology/nanoecotoxicology
  • Biosensors, diagnostics and bioimaging
  • Antimicrobial nanomaterials
  • Nanoadsorbents
  • Bionanomaterials
  • Nanocosmetics
  • Nanobiotechnology
  • Nanocatalysts

Published Papers (4 papers)

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Research

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14 pages, 3396 KiB  
Article
Organobeidellites for Removal of Anti-Inflammatory Drugs from Aqueous Solutions
by Eva Plevová, Silvie Vallová, Lenka Vaculíková, Marianna Hundáková, Roman Gabor, Kateřina Smutná and Radim Žebrák
Nanomaterials 2021, 11(11), 3102; https://doi.org/10.3390/nano11113102 - 17 Nov 2021
Viewed by 1523
Abstract
Diclofenac (DC) and ibuprofen (IBU) are widely prescribed non-steroidal anti-inflammatory drugs, the consumption of which has rapidly increased in recent years. The biodegradability of pharmaceuticals is negligible and their removal efficiency by wastewater treatment is very low. Therefore, the beidelitte (BEI) as unique [...] Read more.
Diclofenac (DC) and ibuprofen (IBU) are widely prescribed non-steroidal anti-inflammatory drugs, the consumption of which has rapidly increased in recent years. The biodegradability of pharmaceuticals is negligible and their removal efficiency by wastewater treatment is very low. Therefore, the beidelitte (BEI) as unique nanomaterial was modified by the following different surfactants: cetylpyridinium (CP), benzalkonium (BA) and tetradecyltrimethylammonium (TD) bromides. Organobeidellites were tested as potential nanosorbents for analgesics. The organobeidellites were characterized using X-ray powder diffraction (XRD), Infrared spectroscopy (IR), Thermogravimetry and differential thermal analysis (TG/DTA) and scanning microscopy (SEM). The equilibrium concentrations of analgesics in solution were determined using UV-VIS spectroscopy. The intercalation of surfactants into BEI structure was confirmed both using XRD analysis due to an increase in basal spacing from 1.53 to 2.01 nm for BEI_BA and IR by decreasing in the intensities of bands related to the adsorbed water. SEM proved successful in the uploading of surfactants by a rougher and eroded organobeidellite surface. TG/DTA evaluated the decrease in dehydration/dehydroxylation temperatures due to higher hydrophobicity. The Sorption experiments demonstrated a sufficient sorption ability for IBU (55–86%) and an excellent ability for DC (over 90%). The maximum adsorption capacity was found for BEI_BA-DC (49.02 mg·g−1). The adsorption according to surfactant type follows the order BEI_BA > BEI_TD > BEI_CP. Full article
(This article belongs to the Special Issue Nanomaterials and Nanotechnology Meeting 2021)
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17 pages, 2803 KiB  
Article
Silver Nanoparticles Stabilized with Phosphorus-Containing Heterocyclic Surfactants: Synthesis, Physico-Chemical Properties, and Biological Activity Determination
by Martin Pisárčik, Miloš Lukáč, Josef Jampílek, František Bilka, Andrea Bilková, Ľudmila Pašková, Ferdinand Devínsky, Renáta Horáková, Matěj Březina and Tomáš Opravil
Nanomaterials 2021, 11(8), 1883; https://doi.org/10.3390/nano11081883 - 22 Jul 2021
Cited by 8 | Viewed by 2023
Abstract
Phosphorus-containing heterocyclic cationic surfactants alkyldimethylphenylphospholium bromides with the alkyl chain length 14 to 18 carbon atoms were used for the stabilization of silver nanodispersions. Zeta potential of silver nanodispersions ranges from +35 to +70 mV, which indicates the formation of stable silver nanoparticles [...] Read more.
Phosphorus-containing heterocyclic cationic surfactants alkyldimethylphenylphospholium bromides with the alkyl chain length 14 to 18 carbon atoms were used for the stabilization of silver nanodispersions. Zeta potential of silver nanodispersions ranges from +35 to +70 mV, which indicates the formation of stable silver nanoparticles (AgNPs). Long-chain heptadecyl and octadecyl homologs of the surfactants series provided the most intensive stabilizing effect to AgNPs, resulting in high positive zeta potential values and smaller diameter of AgNPs in the range 50–60 nm. A comparison with non-heterocyclic alkyltrimethylphosphonium surfactants of the same alkyl chain length showed better stability and more positive zeta potential values for silver nanodispersions stabilized with heterocyclic phospholium surfactants. Investigations of biological activity of phospholium-capped AgNPs are represented by the studies of antimicrobial activity and cytotoxicity. While cytotoxicity results revealed an increased level of HepG2 cell growth inhibition as compared with the cytotoxicity level of silver-free surfactant solutions, no enhanced antimicrobial action of phospholium-capped AgNPs against microbial pathogens was observed. The comparison of cytotoxicity of AgNPs stabilized with various non-heterocyclic ammonium and phosphonium surfactants shows that AgNPs capped with heterocyclic alkyldimethylphenylphospholium and non-heterocyclic triphenyl-substituted phosphonium surfactants have the highest cytotoxicity among silver nanodispersions stabilized by the series of ammonium and phosphonium surfactants. Full article
(This article belongs to the Special Issue Nanomaterials and Nanotechnology Meeting 2021)
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Review

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23 pages, 9852 KiB  
Review
Unique Properties of Surface-Functionalized Nanoparticles for Bio-Application: Functionalization Mechanisms and Importance in Application
by Faheem Ahmad, Mounir M. Salem-Bekhit, Faryad Khan, Sultan Alshehri, Amir Khan, Mohammed M. Ghoneim, Hui-Fen Wu, Ehab I. Taha and Ibrahim Elbagory
Nanomaterials 2022, 12(8), 1333; https://doi.org/10.3390/nano12081333 - 13 Apr 2022
Cited by 56 | Viewed by 3765
Abstract
This review tries to summarize the purpose of steadily developing surface-functionalized nanoparticles for various bio-applications and represents a fascinating and rapidly growing field of research. Due to their unique properties—such as novel optical, biodegradable, low-toxicity, biocompatibility, size, and highly catalytic features—these materials are [...] Read more.
This review tries to summarize the purpose of steadily developing surface-functionalized nanoparticles for various bio-applications and represents a fascinating and rapidly growing field of research. Due to their unique properties—such as novel optical, biodegradable, low-toxicity, biocompatibility, size, and highly catalytic features—these materials are considered superior, and it is thus vital to study these systems in a realistic and meaningful way. However, rapid aggregation, oxidation, and other problems are encountered with functionalized nanoparticles, inhibiting their subsequent utilization. Adequate surface modification of nanoparticles with organic and inorganic compounds results in improved physicochemical properties which can overcome these barriers. This review investigates and discusses the iron oxide nanoparticles, gold nanoparticles, platinum nanoparticles, silver nanoparticles, and silica-coated nanoparticles and how their unique properties after fabrication allow for their potential use in a wide range of bio-applications such as nano-based imaging, gene delivery, drug loading, and immunoassays. The different groups of nanoparticles and the advantages of surface functionalization and their applications are highlighted here. In recent years, surface-functionalized nanoparticles have become important materials for a broad range of bio-applications. Full article
(This article belongs to the Special Issue Nanomaterials and Nanotechnology Meeting 2021)
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34 pages, 2538 KiB  
Review
Biogenic Silver Nanoparticles: What We Know and What Do We Need to Know?
by Mahendra Rai, Avinash P. Ingle, Joanna Trzcińska-Wencel, Magdalena Wypij, Shital Bonde, Alka Yadav, Gabriela Kratošová and Patrycja Golińska
Nanomaterials 2021, 11(11), 2901; https://doi.org/10.3390/nano11112901 - 29 Oct 2021
Cited by 42 | Viewed by 4261
Abstract
Nanobiotechnology is considered to be one of the fastest emerging fields. It is still a relatively new and exciting area of research with considerable potential for development. Among the inorganic nanomaterials, biogenically synthesized silver nanoparticles (bio-AgNPs) have been frequently used due to their [...] Read more.
Nanobiotechnology is considered to be one of the fastest emerging fields. It is still a relatively new and exciting area of research with considerable potential for development. Among the inorganic nanomaterials, biogenically synthesized silver nanoparticles (bio-AgNPs) have been frequently used due to their unique physicochemical properties that result not only from their shape and size but also from surface coatings of natural origin. These properties determine antibacterial, antifungal, antiprotozoal, anticancer, anti-inflammatory, and many more activities of bio-AgNPs. This review provides the current state of knowledge on the methods and mechanisms of biogenic synthesis of silver nanoparticles as well as their potential applications in different fields such as medicine, food, agriculture, and industries. Full article
(This article belongs to the Special Issue Nanomaterials and Nanotechnology Meeting 2021)
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