{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T03:06:59Z","timestamp":1791083219771,"version":"4.1.0"},"reference-count":50,"publisher":"American Chemical Society (ACS)","issue":"4","license":[{"start":{"date-parts":[[2020,8,14]],"date-time":"2020-08-14T00:00:00Z","timestamp":1597363200000},"content-version":"vor","delay-in-days":120,"URL":"https:\/\/pubs.acs.org\/page\/policy\/authorchoice_ccby_termsofuse.html"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51578360"],"award-info":[{"award-number":["51578360"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51778398"],"award-info":[{"award-number":["51778398"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010041","name":"Tianjin Science and Technology Committee","doi-asserted-by":"publisher","award":["15ZCZDSF00150"],"award-info":[{"award-number":["15ZCZDSF00150"]}],"id":[{"id":"10.13039\/501100010041","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/na","name":"Tianjin High School Science and Technology Fund Planning Project","doi-asserted-by":"publisher","award":["170401017"],"award-info":[{"award-number":["170401017"]}],"id":[{"id":"10.13039\/na","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,4,28]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Ligand-induced chirality in semiconducting nanocrystals has been the subject of extensive study in the past few years and shows potential applications in optics and biology. Yet, the origin of the chiroptical effect in semiconductor nanoparticles is still not fully understood. Here, we examine the effect of the interaction with amino acids on both the fluorescence and the optical activity of chiral semiconductor quantum dots (QDs). A significant fluorescence enhancement is observed for l\/d-Cys-CdTe QDs upon interaction with all the tested amino acids, indicating suppression of nonradiative pathways as well as the passivation of surface trap sites brought via the interaction of the amino group with the CdTe QDs\u2019 surface. Heterochiral amino acids are shown to weaken the circular dichroism (CD) signal, which may be attributed to a different binding configuration of cysteine molecules on the QDs\u2019 surface. Furthermore, a red shift of both CD and fluorescence signals in l\/d-Cys-CdTe QDs is only observed upon adding cysteine, while other tested amino acids do not exhibit such an effect. We speculate that the thiol group induces orbital hybridization of the highest occupied molecular orbital (HOMOs) of cysteine and the valence band of CdTe QDs, leading to the decrease of the energy band gap and a concomitant red shift of CD and fluorescence spectra. This is further verified by density functional theory calculations. Both the experimental and theoretical findings indicate that the addition of ligands that do not \u201cdirectly\u201d interact with the valence band (VB) of the QD (noncysteine moieties) changes the QD photophysical properties, as it probably modifies the way cysteine is bound to the surface. Hence, we conclude that it is not only the chemistry of the amino acid ligand that affects both CD and PL but also the exact geometry of binding that modifies these properties. Understanding the relationship between the QD\u2019s surface and chiral amino acid thus provides an additional perspective on the fundamental origin of induced chiroptical effects in semiconductor nanoparticles, potentially enabling us to optimize the design of chiral semiconductor QDs for chiroptic applications.<\/jats:p>","DOI":"10.1021\/acsnano.9b09101","type":"journal-article","created":{"date-parts":[[2020,4,16]],"date-time":"2020-04-16T17:44:24Z","timestamp":1587059064000},"page":"4196-4205","source":"Crossref","is-referenced-by-count":105,"title":["Fluorescence\nand Optical Activity of Chiral CdTe Quantum\nDots in Their Interaction with Amino Acids"],"prefix":"10.1021","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0891-7561","authenticated-orcid":true,"given":"Guangmin","family":"Li","sequence":"first","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9443-5237","authenticated-orcid":true,"given":"Xuening","family":"Fei","sequence":"additional","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongfei","family":"Liu","sequence":"additional","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Gao","sequence":"additional","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiayang","family":"Nie","sequence":"additional","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuanbo","family":"Wang","sequence":"additional","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhaodong","family":"Tian","sequence":"additional","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caicai","family":"He","sequence":"additional","affiliation":[{"name":"Tianjin Chengjian University , , ,","place":["Tianjin, China, 300384"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiang-Long","family":"Wang","sequence":"additional","affiliation":[{"name":"Hebei University , , ,","place":["Baoding, China, 071002"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Ji","sequence":"additional","affiliation":[{"name":"Center Tech Tianjin Chemical Research and Design Institute Co., Ltd. , , ,","place":["Tianjin, China, 300131"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1582-8532","authenticated-orcid":true,"given":"Dan","family":"Oron","sequence":"additional","affiliation":[{"name":"Weizmann Institute of Science , , ,","place":["Rehovot, Israel, 76100"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2218-1781","authenticated-orcid":true,"given":"Gaoling","family":"Yang","sequence":"additional","affiliation":[{"name":"Weizmann Institute of Science , , ,","place":["Rehovot, Israel, 76100"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2020,4,16]]},"reference":[{"key":"2026090200061645200_cit1","doi-asserted-by":"publisher","first-page":"566","DOI":"10.1038\/35339","article-title":"Chiral Discrimination\nby Chemical Force Microscopy","volume":"391","author":"McKendry","year":"1998","journal-title":"Nature"},{"key":"2026090200061645200_cit2","doi-asserted-by":"publisher","first-page":"891","DOI":"10.1038\/415891a","article-title":"Chiral Recognition\nin Dimerization of Adsorbed Cysteine Observed by Scanning Tunneling\nMicroscopy","volume":"415","author":"Ku\u0308hnle","year":"2002","journal-title":"Nature"},{"key":"2026090200061645200_cit3","doi-asserted-by":"publisher","first-page":"4583","DOI":"10.1021\/acs.nanolett.6b01880","article-title":"Spin Selective\nCharge Transport through Cysteine Capped CdSe Quantum Dots","volume":"16","author":"Bloom","year":"2016","journal-title":"Nano Lett."},{"key":"2026090200061645200_cit4","doi-asserted-by":"publisher","first-page":"14312","DOI":"10.1038\/ncomms14312","article-title":"Cooperative\nExpression\nof Atomic Chirality in Inorganic Nanostructures","volume":"8","author":"Wang","year":"2017","journal-title":"Nat. Commun."},{"key":"2026090200061645200_cit5","doi-asserted-by":"publisher","first-page":"13560","DOI":"10.1021\/acsnano.9b07513","article-title":"The Effect of Chiral Ligand Concentration and\nBinding Mode on Chiroptical\nActivity of CdSe\/CdS Quantum Dots","volume":"13","author":"Kuznetsova","year":"2019","journal-title":"ACS Nano"},{"key":"2026090200061645200_cit6","doi-asserted-by":"publisher","first-page":"9207","DOI":"10.1021\/acsnano.7b04199","article-title":"Impact\nof Shell Thickness on Photoluminescence and\nOptical Activity in Chiral CdSe\/CdS Core\/Shell Quantum Dots","volume":"11","author":"Purcell-Milton","year":"2017","journal-title":"ACS Nano"},{"key":"2026090200061645200_cit7","doi-asserted-by":"publisher","first-page":"11094","DOI":"10.1021\/nn404832f","article-title":"Ligand Induced Circular Dichroism and Circularly Polarized Luminescence\nin CdSe Quantum Dots","volume":"7","author":"Tohgha","year":"2013","journal-title":"ACS Nano"},{"key":"2026090200061645200_cit8","doi-asserted-by":"publisher","first-page":"3809","DOI":"10.1021\/acsnano.6b00567","article-title":"Chirality Inversion of CdSe and CdS\nQuantum Dots without Changing\nthe Stereochemistry of the Capping Ligand","volume":"10","author":"Choi","year":"2016","journal-title":"ACS\nNano"},{"key":"2026090200061645200_cit9","doi-asserted-by":"publisher","first-page":"9846","DOI":"10.1021\/acsnano.7b03555","article-title":"CdSe Quantum Dots Functionalized\nwith Chiral, Thiol-Free Carboxylic Acids: Unraveling Structural Requirements\nfor Ligand-Induced Chirality","volume":"11","author":"Varga","year":"2017","journal-title":"ACS Nano"},{"key":"2026090200061645200_cit10","doi-asserted-by":"publisher","first-page":"1844","DOI":"10.1039\/c3cc37987f","article-title":"Achiral CdSe\nQuantum Dots Exhibit\nOptical Activity in the Visible Region upon Post-Synthetic Ligand\nExchange with D-or L-Cysteine","volume":"49","author":"Tohgha","year":"2013","journal-title":"Chem. Commun."},{"key":"2026090200061645200_cit11","doi-asserted-by":"publisher","first-page":"3900","DOI":"10.1039\/b704636g","article-title":"Chiral Highly Fluorescence CdS Quantum\nDots","volume":"38","author":"Moloney","year":"2007","journal-title":"Chem. 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Acta, Part A"},{"key":"2026090200061645200_cit22","doi-asserted-by":"publisher","first-page":"5351","DOI":"10.1021\/ac3007939","article-title":"Economical, Green Synthesis\nof Fluorescent Carbon Nanoparticles and Their Use as Probes for Sensitive\nand Selective Detection of Mercury (II) Ions","volume":"84","author":"Lu","year":"2012","journal-title":"Anal. Chem."},{"key":"2026090200061645200_cit23","doi-asserted-by":"publisher","first-page":"6006","DOI":"10.1021\/ja906894r","article-title":"Similar\nTopological Origin of Chiral Centers in Organic and Nanoscale Inorganic\nStructures: Effect of Stabilizer Chirality on Optical Isomerism and\nGrowth of CdTe Nanocrystals","volume":"132","author":"Zhou","year":"2010","journal-title":"J. Am. Chem. Soc."},{"key":"2026090200061645200_cit24","doi-asserted-by":"publisher","first-page":"4042","DOI":"10.1039\/b405516k","article-title":"High Resolution X-Ray\nPhotoelectron Spectroscopy of L-Cysteine Self-Assembled Films","volume":"6","author":"Cavalleri","year":"2004","journal-title":"Phys. Chem. Chem. Phys."},{"key":"2026090200061645200_cit25","doi-asserted-by":"publisher","first-page":"1677","DOI":"10.1021\/jp991468v","article-title":"CdTe\/CdS Clusters with \u201cCore-Shell\u201d\nStructure in Colloids and Films:\u2009 The Path of Formation and\nThermal Breakup","volume":"104","author":"Schreder","year":"2000","journal-title":"J. Phys. Chem. B"},{"key":"2026090200061645200_cit26","doi-asserted-by":"publisher","first-page":"2854","DOI":"10.1021\/cm034081k","article-title":"Experimental Determination\nof the Extinction Coefficient of CdTe, CdSe, and CdS Nanocrystals","volume":"15","author":"Yu","year":"2003","journal-title":"Chem. Mater."},{"key":"2026090200061645200_cit27","doi-asserted-by":"publisher","first-page":"12240","DOI":"10.1021\/acsnano.7b05690","article-title":"Circular Dichroism of CdSe Nanocrystals Bound by Chiral\nCarboxylic Acids","volume":"11","author":"Puri","year":"2017","journal-title":"ACS Nano"},{"key":"2026090200061645200_cit28","doi-asserted-by":"publisher","first-page":"11456","DOI":"10.1002\/anie.201103762","article-title":"Optical\nCoupling between Chiral Biomolecules and Semiconductor Nanoparticles:\nSize-Dependent Circular Dichroism Absorption","volume":"50","author":"Zhou","year":"2011","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026090200061645200_cit29","doi-asserted-by":"publisher","first-page":"358","DOI":"10.1002\/chir.20389","article-title":"Chiral Crystallization of Glutamic Acid on Self Assembled\nFilms of Cysteine","volume":"19","author":"Dressler","year":"2007","journal-title":"Chirality"},{"key":"2026090200061645200_cit30","doi-asserted-by":"publisher","first-page":"7177","DOI":"10.1021\/jp025541k","article-title":"Thiol Capping of CdTe\nNanocrystals: An Alternative to Organo-Metallic Synthetic Routes","volume":"106","author":"Gaponik","year":"2002","journal-title":"J. Phys. Chem. B"},{"key":"2026090200061645200_cit31","doi-asserted-by":"publisher","first-page":"6074","DOI":"10.1021\/j100281a004","article-title":"Photophysics\nof Quantized Colloidal Semiconductors Dramatic Luminescence Enhancement\nby Binding of Simple Amines","volume":"90","author":"Dannhauser","year":"1986","journal-title":"J. Phys. Chem."},{"key":"2026090200061645200_cit32","doi-asserted-by":"publisher","first-page":"764","DOI":"10.1016\/j.jlumin.2006.11.010","article-title":"PH Dependent Interaction\nof Biofunctionalized CdS Nanoparticles with Nucleobases and Nucleotides:\nA Fluorimetric Study","volume":"126","author":"Chatterjee","year":"2007","journal-title":"J. Lumin."},{"key":"2026090200061645200_cit33","doi-asserted-by":"publisher","first-page":"161302","DOI":"10.1103\/PhysRevB.71.161302","article-title":"Correlation\nbetween Photoluminescence Intermittency\nof CdSe Quantum Dots and Self-Trapped States in Dielectric Media","volume":"71","author":"Issac","year":"2005","journal-title":"Phys. Rev. B: Condens. Matter Mater. Phys."},{"key":"2026090200061645200_cit34","doi-asserted-by":"publisher","first-page":"503","DOI":"10.1021\/nl034054t","article-title":"Highly Luminescent Water-Soluble CdTe Quantum Dots","volume":"3","author":"Wuister","year":"2003","journal-title":"Nano Lett."},{"key":"2026090200061645200_cit35","doi-asserted-by":"publisher","first-page":"137401","DOI":"10.1103\/PhysRevLett.88.137401","article-title":"Fluorescence Decay\nTime of Single Semiconductor Nanocrystals","volume":"88","author":"Schlegel","year":"2002","journal-title":"Phys.\nRev. Lett."},{"key":"2026090200061645200_cit36","doi-asserted-by":"publisher","first-page":"9869","DOI":"10.1063\/1.473875","article-title":"The Band\nEdge Luminescence of Surface Modified CdSe Nanocrystallites: Probing\nthe Luminescing State","volume":"106","author":"Kuno","year":"1997","journal-title":"J. Chem. 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Phys."},{"key":"2026090200061645200_cit40","doi-asserted-by":"publisher","first-page":"16806","DOI":"10.1039\/c1jm12345a","article-title":"Chiral Nanoparticle Assemblies: Circular\nDichroism, Plasmonic Interactions, and Exciton Effects","volume":"21","author":"Govorov","year":"2011","journal-title":"J. Mater. Chem."},{"key":"2026090200061645200_cit41","doi-asserted-by":"publisher","first-page":"6870","DOI":"10.1021\/acs.nanolett.7b03191","article-title":"Ripening of Semiconductor\nNanoplatelets","volume":"17","author":"Ott","year":"2017","journal-title":"Nano Lett."},{"key":"2026090200061645200_cit42","doi-asserted-by":"publisher","first-page":"2736","DOI":"10.1021\/ja068072z","article-title":"Interparticle\nInfluence on Size\/Size Distribution Evolution of Nanocrystals","volume":"129","author":"Thessing","year":"2007","journal-title":"J. Am. Chem. Soc."},{"key":"2026090200061645200_cit43","doi-asserted-by":"publisher","first-page":"3195","DOI":"10.1021\/nn1007435","article-title":"Relaxation of Exciton Confinement in CdSe Quantum Dots\nby Modification with a Conjugated Dithiocarbamate Ligand","volume":"4","author":"Frederick","year":"2010","journal-title":"ACS Nano"},{"key":"2026090200061645200_cit44","doi-asserted-by":"publisher","first-page":"508","DOI":"10.1063\/1.458452","article-title":"Yb-Decorated\nCarbon Nanotubes as a Potential Capacity Hydrogen Storage Medium","volume":"92","author":"Delley","year":"1990","journal-title":"J. Chem. Phys."},{"key":"2026090200061645200_cit45","doi-asserted-by":"publisher","first-page":"5648","DOI":"10.1063\/1.464913","article-title":"Density-Functional\nThermochemistry. III. The Role of Exact Exchange","volume":"98","author":"Becke","year":"1993","journal-title":"J. Chem. Phys."},{"key":"2026090200061645200_cit46","doi-asserted-by":"publisher","first-page":"11623","DOI":"10.1021\/j100096a001","article-title":"Ab Initio Calculation of Vibrational Absorption and Circular Dichroism Spectra\nUsing Density Functional Force Fields","volume":"98","author":"Stephens","year":"1994","journal-title":"J. Phys.\nChem."},{"key":"2026090200061645200_cit47","doi-asserted-by":"publisher","first-page":"073005","DOI":"10.1103\/PhysRevLett.102.073005","article-title":"Accurate Molecular van der Waals Interactions from\nGround-State Electron Density and Free-Atom Reference Data","volume":"102","author":"Tkatchenko","year":"2009","journal-title":"Phys. Rev. Lett."},{"key":"2026090200061645200_cit48","doi-asserted-by":"publisher","first-page":"117","DOI":"10.1080\/08927020600589684","article-title":"The Conductor-Like\nScreening Model for Polymers and Surfaces","volume":"32","author":"Delley","year":"2006","journal-title":"Mol.\nSimul."},{"key":"2026090200061645200_cit49","doi-asserted-by":"publisher","first-page":"7094","DOI":"10.1021\/jp4007747","article-title":"Structural and Electronic Properties of Bare and Capped\nCd33Se33 and Cd33Te33 Quantum\nDots","volume":"118","author":"Kuznetsov","year":"2014","journal-title":"J. Phys. Chem. C"},{"key":"2026090200061645200_cit50","doi-asserted-by":"publisher","first-page":"9034","DOI":"10.1021\/nn203234b","article-title":"Size Dependence\nof Chiroptical Activity in Colloidal Quantum Dots","volume":"5","author":"Ben Moshe","year":"2011","journal-title":"ACS Nano"}],"container-title":["ACS Nano"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/acsnano.9b09101","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/ancac3\/article-pdf\/14\/4\/4196\/67607204\/acsnano.9b09101.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/ancac3\/article-pdf\/14\/4\/4196\/67607204\/acsnano.9b09101.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T04:28:27Z","timestamp":1788323307000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/ancac3\/article\/14\/4\/4196\/603014\/Fluorescence-and-Optical-Activity-of-Chiral-CdTe"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,16]]},"references-count":50,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2020,4,16]]},"published-print":{"date-parts":[[2020,4,28]]}},"URL":"https:\/\/doi.org\/10.1021\/acsnano.9b09101","relation":{},"ISSN":["1936-0851","1936-086X"],"issn-type":[{"value":"1936-0851","type":"print"},{"value":"1936-086X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,4,16]]}}}