{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T07:05:28Z","timestamp":1782975928874,"version":"3.54.5"},"reference-count":31,"publisher":"IOP Publishing","issue":"26","license":[{"start":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T00:00:00Z","timestamp":1782950400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T00:00:00Z","timestamp":1782950400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/501100012632","name":"Nazarbayev University","doi-asserted-by":"crossref","award":["040225FD4734"],"award-info":[{"award-number":["040225FD4734"]}],"id":[{"id":"10.13039\/501100012632","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Nanotechnology"],"published-print":{"date-parts":[[2026,7,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Understanding friction in carbon nanotube (CNT) assemblies is essential for the development of nanoscale mechanical systems and CNT-based tribological interfaces. In this work, non-equilibrium molecular dynamics simulations are employed to investigate frictional sliding in layered CNT systems, focusing on double-wall CNT (DWCNT) and triple-wall CNT (TWCNT) configurations. Armchair nanotubes with diameters corresponding to different chiralities were considered, while the overlap ratio and nanotube length were systematically varied to explore their influence on friction. The results reveal pronounced stick\u2013slip dynamics and demonstrate that the effective friction coefficient depends strongly on nanotube diameter, overlap ratio, and wall multiplicity. For DWCNTs, the friction coefficient varies in the range\n                    <jats:inline-formula>\n                      <jats:tex-math>\n                        \n                      <\/jats:tex-math>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                          <mml:mi>\u03bc<\/mml:mi>\n                          <mml:mo>\u2248<\/mml:mo>\n                          <mml:mn>2.0<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    \u2013\n                    <jats:inline-formula>\n                      <jats:tex-math>\n                        \n                      <\/jats:tex-math>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                          <mml:mn>5.2<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    , whereas TWCNTs exhibit slightly lower values in the range\n                    <jats:inline-formula>\n                      <jats:tex-math>\n                        \n                      <\/jats:tex-math>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                          <mml:mi>\u03bc<\/mml:mi>\n                          <mml:mo>\u2248<\/mml:mo>\n                          <mml:mn>1.5<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    \u2013\n                    <jats:inline-formula>\n                      <jats:tex-math>\n                        \n                      <\/jats:tex-math>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                          <mml:mn>4.5<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    due to the presence of an additional sliding interface and increased radial stiffness. Thin nanotubes display a compliance-dominated regime in which bending-mediated relaxation can reduce friction at large overlap ratios, while larger diameters exhibit a corrugation-dominated regime characterized by a monotonic increase in friction with contact area. Temperature elevation induces a moderate friction reduction while high temperatures lead to structural deformation in thin nanotubes. These findings provide atomistic insight into friction regulation in CNT assemblies and offer design guidelines for tunable nanoscale tribological interfaces.\n                  <\/jats:p>","DOI":"10.1088\/1361-6528\/ae7dfa","type":"journal-article","created":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T22:48:52Z","timestamp":1781650132000},"page":"265704","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Nanoscale high friction in double- and triple-wall carbon nanotubes: a molecular dynamics study"],"prefix":"10.1088","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-9243-2479","authenticated-orcid":true,"given":"Gulnaz","family":"Zhemeney","sequence":"first","affiliation":[{"name":"Nazarbayev University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7741-5552","authenticated-orcid":true,"given":"Omid","family":"Farzadian","sequence":"additional","affiliation":[{"name":"Nazarbayev University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3866-0365","authenticated-orcid":false,"given":"Amir","family":"Hamed Mashhadzadeh","sequence":"additional","affiliation":[{"name":"Nazarbayev University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1052-3329","authenticated-orcid":true,"given":"Konstantinos","family":"Kostas","sequence":"additional","affiliation":[{"name":"Nazarbayev University"},{"name":"University of West Attica"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2026,7,2]]},"reference":[{"key":"nanoae7dfabib1","doi-asserted-by":"publisher","first-page":"56","DOI":"10.1038\/354056a0","type":"journal-article","volume":"354","author":"Iijima","year":"1991","journal-title":"Nature"},{"key":"nanoae7dfabib2","author":"Dresselhaus","year":"1996","type":"book"},{"key":"nanoae7dfabib3","doi-asserted-by":"publisher","first-page":"61","DOI":"10.1016\/j.mser.2003.10.001","type":"journal-article","volume":"43","author":"Popov","year":"2004","journal-title":"Mater. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2026-04-14","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-06-16","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-07-02","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}