{"id":26,"date":"2016-12-13T11:41:55","date_gmt":"2016-12-13T10:41:55","guid":{"rendered":"http:\/\/embedlab.sns.it\/?page_id=26"},"modified":"2024-03-15T15:43:18","modified_gmt":"2024-03-15T14:43:18","slug":"research","status":"publish","type":"page","link":"https:\/\/embedlab.sns.it\/index.php\/research\/","title":{"rendered":"Research Lines"},"content":{"rendered":"<p style=\"text-align: left;\">Our research activity\u00a0focuses on the\u00a0development of theory and algorithms for the calculation of molecular properties and molecular spectra of systems embedded in external complex environments\u00a0based on the first principles of quantum mechanics.<\/p>\n<p>All current projects may be grouped according to five main research directions:<\/p>\n<ol>\n<li><strong><strong><strong><strong>Development of Fully Atomistic Embedding Approaches for Computational Spectroscopy<br \/><\/strong><\/strong><\/strong><\/strong><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-629 size-medium alignleft\" src=\"http:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/acrolein_qmmm-300x300.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/acrolein_qmmm-300x300.png 300w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/acrolein_qmmm-150x150.png 150w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/acrolein_qmmm-768x768.png 768w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/acrolein_qmmm-350x350.png 350w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/acrolein_qmmm.png 802w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Our research focuses on the development and implementation of fully polarizable multiscale QM\/MM approaches, for the calculation of molecular properties and spectroscopies of systems embedded in external environments. For a recent review see\u00a0 <a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acsphyschemau.2c00050\" target=\"_blank\" rel=\"noopener\">ACS\u00a0<em>Phys.<\/em><em>\u00a0Chem. Au<\/em><strong> 2022<\/strong><\/a>. <br \/>Moreover, we have extended these models to treat chiroptical properties. This is particularly relevant since most chiroptical responses are measured for systems interacting with an external environment, which can have huge effects on both the absolute value and sign of the spectral signals. Chiroptical properties are complex phenomena involving the molecular response to both the electric and magnetic components of the radiation field. Thus, being able to model both fields reliably is mandatory to obtain accurate spectra. \u00a0 For more details see <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.jpclett.6b01756\" target=\"_blank\" rel=\"noopener\"><em>J.Phys. Chem. Lett.<\/em>,\u00a0<strong>2016<\/strong>,\u00a0<em>7,\u00a0<\/em>3585<i>;\u00a0<\/i><\/a><a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/ct400061z\" target=\"_blank\" rel=\"noopener\"><em>J. Chem. Theory Comput.<\/em>,\u00a0<strong>2013<\/strong>,\u00a0<em>9<\/em>, 1880<\/a>.<\/li>\n<li><hr \/><strong>Development of Fully Atomistic Approaches for Modeling the Optical Response of Plasmonic Substrates <\/strong> <br \/><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acsphotonics.2c00761\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft wp-image-765 size-medium\" src=\"http:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/11\/images_large_ph2c00761_0007-300x187.jpeg\" alt=\"\" width=\"300\" height=\"187\" srcset=\"https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/11\/images_large_ph2c00761_0007-300x187.jpeg 300w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/11\/images_large_ph2c00761_0007-768x479.jpeg 768w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/11\/images_large_ph2c00761_0007-561x350.jpeg 561w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/11\/images_large_ph2c00761_0007-150x94.jpeg 150w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/11\/images_large_ph2c00761_0007.jpeg 895w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> We develop fully atomistic classical models capable of describing the optical properties in the frequency domain of plasmonic substrates such as graphene or metal nanoparticles. Our models prove to be reliable against ab-initio results. Moreover, the affordable computational cost of our models, allows us to apply them to realistic-sized structures, still retaining a full atomistic description of the system. <br \/>For more details see \u00a0<a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acsphotonics.2c00761\" target=\"_blank\" rel=\"noopener\"><em>ACS Photonics<\/em>, <strong>2022<\/strong>, 9, 3025;<\/a> <a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acs.jpclett.0c02051\" target=\"_blank\" rel=\"noopener\"><em>J. Phys. Chem. Lett.<\/em>, 2020, 11, 7595;<\/a> <a href=\"https:\/\/pubs.rsc.org\/en\/content\/articlehtml\/2019\/nr\/c8nr09134j\" target=\"_blank\" rel=\"noopener\"><em>Nanoscale, <\/em><strong>2019<\/strong>, 11, 6004<\/a>.\n<p>\u00a0<\/p>\n<hr \/><\/li>\n<li><strong><strong><strong><strong>Application of Computational Protocols to Molecular\u00a0Spectroscopy of Relevant Chemical\u00a0Systems<br \/><\/strong><\/strong><\/strong><\/strong><a href=\"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/full\/10.1002\/cbic.202000618\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft wp-image-724 size-medium\" src=\"http:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers--300x121.png\" alt=\"\" width=\"300\" height=\"121\" srcset=\"https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers--300x121.png 300w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers--1024x413.png 1024w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers--768x310.png 768w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers--1536x619.png 1536w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers--868x350.png 868w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers--150x60.png 150w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/sarscov2_uvvis_dimers-.png 1779w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>We apply our methods and codes to describe and predict various spectroscopic phenomena, from purely electronic to purely vibrational or vibronic spectra of systems of applicative interest. Using our tools, we have recently studied biologically relevant systems like the ACE2\u22c5\u22c5\u22c5RBD SARS-CoV-2 complex (also with the SARS-CoV-2 variants), the insertion of drugs into model cell membranes, and the intercalation of anticancer drugs into DNA. Some works arise from collaboration with experimental groups. A few examples can be found in <a href=\"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/full\/10.1002\/cbic.202000618\" target=\"_blank\" rel=\"noopener\"><em>ChemBioChem<\/em>,\u00a0<strong>2021<\/strong>,\u00a0<em>22<\/em>, 724;<\/a> \u00a0<a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acs.jpcb.1c06766\" target=\"_blank\" rel=\"noopener\"><em>J.Phys. Chem. B<\/em>,\u00a0<strong>2021<\/strong>,\u00a0<em>125<\/em>, 10383;<\/a> <a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acs.jctc.1c01066\" target=\"_blank\" rel=\"noopener\"><em>J. Chem. Theory Comput.<\/em>,\u00a0<strong>2022<\/strong>,\u00a0<em>18<\/em>, 1765<\/a><a href=\"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/full\/10.1002\/chem.201203672\" target=\"_blank\" rel=\"noopener\">.<\/a><br \/><hr \/><\/li>\n<li><strong>QM\/Atomistic Frameworks for Surface Enhanced Molecular Properties<\/strong><\/li>\n<\/ol>\n<p><span style=\"color: #ffffff;\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-708 alignleft\" src=\"http:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters-300x239.png\" alt=\"\" width=\"275\" height=\"219\" srcset=\"https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters-300x239.png 300w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters-1024x814.png 1024w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters-768x611.png 768w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters-1536x1222.png 1536w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters-440x350.png 440w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters-150x119.png 150w, https:\/\/embedlab.sns.it\/wp-content\/uploads\/2022\/10\/ters.png 1974w\" sizes=\"(max-width: 275px) 100vw, 275px\" \/><\/span>We are currently working on the extension of our frequency-dependent atomistic models within a QM\/classical<span style=\"font-weight: 400;\"> formalism, for the study of the enhanced response properties of molecules perturbed by plasmonic structures in their vicinity. These computationally affordable, yet atomistic, models constitute a cornerstone for the study of phenomena such as Tip\/Surface-Enhanced Raman (TERS\/SERS) for the in-silico design of biosensors, among others. See <a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acs.jctc.3c00177\"><span class=\"cit-title\"><i>J. Chem. Theory Comput.<\/i><\/span> <span class=\"cit-year-info\">2023<\/span><span class=\"cit-volume\">, 19<\/span><span class=\"cit-issue\">, 12<\/span><span class=\"cit-pageRange\">, 3616.<\/span><\/a><\/span><\/p>\n<hr \/>\n\n","protected":false},"excerpt":{"rendered":"<p>Our research activity\u00a0focuses on the\u00a0development of theory and algorithms for the calculation of molecular properties and molecular spectra of systems embedded in external complex environments\u00a0based on the first principles of quantum mechanics. All current projects may be grouped according to five main research directions: Development of Fully Atomistic Embedding Approaches\u2026 <a class=\"continue-reading-link\" href=\"https:\/\/embedlab.sns.it\/index.php\/research\/\">Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/pages\/26"}],"collection":[{"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/comments?post=26"}],"version-history":[{"count":109,"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/pages\/26\/revisions"}],"predecessor-version":[{"id":901,"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/pages\/26\/revisions\/901"}],"wp:attachment":[{"href":"https:\/\/embedlab.sns.it\/index.php\/wp-json\/wp\/v2\/media?parent=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}