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<journal-id journal-id-type="publisher-id">Front. Chem.</journal-id>
<journal-title>Frontiers in Chemistry</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Chem.</abbrev-journal-title>
<issn pub-type="epub">2296-2646</issn>
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<publisher-name>Frontiers Media S.A.</publisher-name>
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<article-id pub-id-type="publisher-id">952268</article-id>
<article-id pub-id-type="doi">10.3389/fchem.2022.952268</article-id>
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<subj-group subj-group-type="heading">
<subject>Chemistry</subject>
<subj-group>
<subject>Editorial</subject>
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<title-group>
<article-title>Editorial: The Physical Chemistry of Organic-Inorganic Interfaces as a Key to Understanding Hybrid Nanomaterials</article-title>
<alt-title alt-title-type="left-running-head">Mombr&#xfa; et al.</alt-title>
<alt-title alt-title-type="right-running-head">Editorial: Organic-Inorganic Interfaces in Focus</alt-title>
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<contrib-group>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Mombr&#xfa;</surname>
<given-names>&#xc1;lvaro W.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1386847/overview"/>
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<contrib contrib-type="author" corresp="yes">
<name>
<surname>Faccio</surname>
<given-names>Ricardo</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/59923/overview"/>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Romero</surname>
<given-names>Mariano</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/875030/overview"/>
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<contrib contrib-type="author" corresp="yes">
<name>
<surname>Juan</surname>
<given-names>Alfredo</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1391869/overview"/>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Pasa</surname>
<given-names>Andr&#xe9; A.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
</contrib>
</contrib-group>
<aff id="aff1">
<sup>1</sup>
<institution>Centro NanoMat/CryssMat and F&#x00ED;sica, DETEMA, Facultad de Qu&#x00ED;mica, Universidad de la Rep&#x00FA;blica (UdelaR)</institution>, <addr-line>Montevideo</addr-line>, <country>Uruguay</country>
</aff>
<aff id="aff2">
<sup>2</sup>
<institution>PLAPIQUI, Universidad Nacional del Sur - CONICET, Camino La Carrindanga</institution>, <addr-line>Bah&#xed;a Blanca</addr-line>, <country>Argentina</country>
</aff>
<aff id="aff3">
<sup>3</sup>
<institution>Laborat&#x00F3;rio de Filmes Finos e Superf&#x00ED;cies (LFFS), Universidade Federal de Santa Catarina</institution>, <addr-line>Florianopolis</addr-line>, <country>Brazi</country>
</aff>
<author-notes>
<fn fn-type="edited-by">
<p>
<bold>Edited and reviewed by:</bold> <ext-link ext-link-type="uri" xlink:href="https://loop.frontiersin.org/people/224711/overview">Min-Cherl Jung</ext-link>, University of Tsukuba, Japan</p>
</fn>
<corresp id="c001">&#x2a;Correspondence: &#xc1;lvaro W. Mombr&#xfa;, <email>amombru@fq.edu.uy</email>; Ricardo Faccio, <email>rfaccio@fq.edu.uy</email>; Mariano Romero, <email>mromero@fq.edu.uy</email>; Alfredo Juan, <email>cajuan@uns.edu.ar</email>; Andr&#xe9; A. Pasa, <email>andre.pasa@ufsc.edu.br</email>
</corresp>
<fn fn-type="other">
<p>This article was submitted to Physical Chemistry and Chemical Physics, a section of the journal Frontiers in Chemistry</p>
</fn>
</author-notes>
<pub-date pub-type="epub">
<day>19</day>
<month>07</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="collection">
<year>2022</year>
</pub-date>
<volume>10</volume>
<elocation-id>952268</elocation-id>
<history>
<date date-type="received">
<day>24</day>
<month>05</month>
<year>2022</year>
</date>
<date date-type="accepted">
<day>31</day>
<month>05</month>
<year>2022</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#xa9; 2022 Mombr&#xfa;, Faccio, Romero, Juan and Pasa.</copyright-statement>
<copyright-year>2022</copyright-year>
<copyright-holder>Mombr&#xfa;, Faccio, Romero, Juan and Pasa</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/">
<p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</p>
</license>
</permissions>
<related-article id="RA1" related-article-type="commentary-article" journal-id="Front. Chem" xlink:href="https://www.frontiersin.org/researchtopic/24279" ext-link-type="uri">Editorial on the Research Topic <article-title>The Physical Chemistry of Organic-Inorganic Interfaces as a Key to Understanding Hybrid Nanomaterials</article-title> </related-article>
<kwd-group>
<kwd>organic-inorganic interfaces</kwd>
<kwd>physical chemistry</kwd>
<kwd>hybrid nanomaterials</kwd>
<kwd>surfaces</kwd>
<kwd>applications</kwd>
</kwd-group>
</article-meta>
</front>
<body>
<p>Research on organic-inorganic hybrid materials has been developing and increasing since the 1990s. The reason for this increase is the combination of the properties of each of the components, with very different characteristics. The crystalline structures and composition, which emerge directly from the electronic structures, play fundamental roles, and the interaction between both types of materials, creates zones with defined local properties. Over the years, the above has been used for various purposes. There have been many advances in the preparation and characterization of hybrid organic-inorganic materials and it is widely accepted that many magnetic, ionic, electronic, and optoelectronic properties can be drastically enhanced compared to their isolated counterparts. However, there is still an outstanding need to understand the mechanisms involved in the physical chemistry processes at these complex organic-inorganic interfaces.</p>
<p>In &#x201c;Factors influencing the interactions in gelatin/hydroxyapatite hybrid Materials&#x201d; (<ext-link ext-link-type="uri" xlink:href="https://www.frontiersin.org/articles/10.3389/fchem.2020.00489/full">Z. Zhang et al.</ext-link>) the focus is on the improvement of scaffolds by using the standard material for this purpose, hydroxyapatite, and trying to take advantage of the good properties of gelatin, which has led to a steady increase in interest from research groups due to the mechanical properties and the versatility they offer, which has also brought huge attention to hydrogels. The combination of both materials plays an analog role as cement and steel for the construction of strong buildings. Both materials contribute to creating a hybrid scaffold with mechanical properties improvements. This Research Topic presents a thorough study on the nucleation and growth of hydroxyapatite crystals is presented, giving important information on the state-of-the-art in this field.</p>
<p>In &#x201c;Aramid-zirconia nanocomposite coating with excellent corrosion protection of stainless steel in saline media&#x201d; <ext-link ext-link-type="uri" xlink:href="https://www.frontiersin.org/articles/10.3389/fchem.2020.00391/full">A. A. Nazeer et al.</ext-link> focus on another field of opportunities for this kind of system. Through the preparation of nanocomposites and the deposition as coatings. In particular, the authors use this methodology to provide stainless steel protection against saline media. Microstructure and crystal structure are key for the achievement of this task, where embedding zirconia in the aramid polymer proved to enhance the intrinsic barrier characteristics of pure aramid.</p>
<p>Another application where the presence of hybrid organic-inorganic systems is important is the development of perovskite solar cells. Contributing to this topic, the article &#x201c;Terahertz Wave Absorption Property of all Mixed Organic-Inorganic Hybrid Perovskite Thin Film MA (Sn,Pb) (Br,I)<sub>3</sub> Fabricated by Sequential Vacuum Evaporation Method&#x201d; <ext-link ext-link-type="uri" xlink:href="https://www.frontiersin.org/articles/10.3389/fchem.2021.753141/full">I. Maeng et al.</ext-link> presents a work in thin films prepared by sequenced vacuum evaporation method in the CH<sub>3</sub>NH<sub>3</sub>(Pb,Sn) (Br,I)<sub>3</sub>, perovskite systems where the replacement of Pb for Sn and I for Br, in this generic composition is studied through time-domain spectroscopy. Authors scanned in different annealing conditions where main crystal structure parameters and crystalline systems are reported and concluded the feasibility of such systems to find applications in the THz region, for example as sensors and modulating devices.</p>
<p>Finally, in their mini-review on &#x201c;Hybrid organic-inorganic materials and interfaces with mixed ionic-electronic transport properties: advances in experimental and theoretical approaches,&#x201d; <ext-link ext-link-type="uri" xlink:href="https://www.frontiersin.org/articles/10.3389/fchem.2022.892013/full">Romero et al.</ext-link> discuss the state-of-the-art of mixed ionic-electronic transport properties of hybrid organic-inorganic materials, mainly focusing on the phenomena occurring in the interface, both from experimental points of view and in theoretically simulations. They emphasize ionic and electronic conducting polymers interacting with semiconducting oxides such as ZnO, TiO<sub>2</sub>, SiO<sub>2,</sub> and also on In-doped SnO<sub>2</sub>, ITO, which is widely used as a conducting film for glasses and other substrates.</p>
<p>These four contributions are good examples of the variety of applications that can be explored when performing research in the field of hybrid organic-inorganic materials. Areas such as energy conversion and storage, corrosion, and mechanical reinforcement of tissue replacement scaffolds or sensors, are just representative examples of the different ways in which this subject can offer very interesting solutions.</p>
</body>
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<sec id="s1">
<title>Author Contributions</title>
<p>All authors listed have made a substantial, direct, and intellectual contribution to the work and approved it for publication.</p>
</sec>
<sec sec-type="COI-statement" id="s2">
<title>Conflict of Interest</title>
<p>The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</p>
</sec>
<sec sec-type="disclaimer" id="s3">
<title>Publisher&#x2019;s Note</title>
<p>All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.</p>
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