{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T18:23:17Z","timestamp":1782498197998,"version":"3.54.5"},"reference-count":21,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2014,7,23]],"date-time":"2014-07-23T00:00:00Z","timestamp":1406073600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Three different nanosensors with core-shell structures were fabricated by molecular self-assembly and evaporation techniques. Such closely packed nanoparticles exhibit fine optical properties which are useful for biochemical sensing. The refractive index sensitivity (RIS) of nanosensors was detected by varying the refractive index of the surrounding medium and the decay length of nanosensors was investigated using a layer-by-layer polyelectrolyte multilayer assembly. The results showed that the thickness of the Au shell plays an important role in determining the RIS and the decay length. A system based on localized surface plasmon resonances (LSPR) sensing was constructed in our study. The core-shell nanosensors can detect 10 ng\/mL atrazine solutions and are suitable for pesticide residue detection.<\/jats:p>","DOI":"10.3390\/s140713273","type":"journal-article","created":{"date-parts":[[2014,7,23]],"date-time":"2014-07-23T11:03:10Z","timestamp":1406113390000},"page":"13273-13284","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["The Optical Property of Core-Shell Nanosensors and Detection of Atrazine Based on Localized Surface Plasmon Resonance (LSPR) Sensing"],"prefix":"10.3390","volume":"14","author":[{"given":"Shaobo","family":"Yang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tengfei","family":"Wu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinhua","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Tianjin University of Technology, Tianjin 300131, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xingfei","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenbin","family":"Tan","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2014,7,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1016\/j.bios.2007.07.001","article-title":"Towards integrated and sensitive surface plasmon resonance biosensors: A review of recent progress","volume":"23","author":"Hoa","year":"2007","journal-title":"Biosens. 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Actuators B Chem."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"872","DOI":"10.1039\/C0CC04168H","article-title":"High Sensitivity and selectivity of human antibody attachment at the interstices between substrate-bound gold nanoparticles","volume":"47","author":"Hsu","year":"2011","journal-title":"Chem. Commun."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"6976","DOI":"10.1021\/ac0513459","article-title":"Label-free detection of peptide nucleic acid dna hybridization using localized surface plasmon resonance based optical biosensor","volume":"77","author":"Endo","year":"2005","journal-title":"Anal. Chem."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"6100","DOI":"10.1021\/ac800335q","article-title":"Palm-Sized Biodetection system based on localized surface plasmon resonance","volume":"80","author":"Neuzil","year":"2008","journal-title":"Anal. 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Soc."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"5636","DOI":"10.1021\/la971228b","article-title":"Quantitative interpretation of the response of surface plasmon resonance sensors to adsorbed films","volume":"14","author":"Jung","year":"1998","journal-title":"Langmuir"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1021\/jp0361327","article-title":"A nanoscale optical biosensor: The long range distance dependence of the localized surface plasmon resonance of noble metal nanoparticles","volume":"108","author":"Haes","year":"2004","journal-title":"J. Phys. Chem. B"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1889","DOI":"10.1002\/smll.200900284","article-title":"Biosensing by densely packed and optically coupled plasmonic particle arrays","volume":"5","author":"Sannomiya","year":"2009","journal-title":"Small"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"4232","DOI":"10.1021\/jp809959j","article-title":"Modeling the buildup of exponentially growing polyelectrolyte multilayer films","volume":"113","author":"Hoda","year":"2009","journal-title":"J. Phys. Chem. B"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1237","DOI":"10.1021\/nl1042243","article-title":"Plasmonics and enhanced Magneto-Optics in Core-Shell Co-Ag nanoparticles","volume":"11","author":"Wang","year":"2011","journal-title":"Nano Lett."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"6465","DOI":"10.1021\/ac0608321","article-title":"Multiple Label-free detection of antigen-antibody reaction using localized surface plasmon Resonance-Based Core-Shell structured nanoparticle layer nanochip","volume":"78","author":"Endo","year":"2006","journal-title":"Anal. Chem."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"880","DOI":"10.1109\/JSEN.2008.923266","article-title":"Large-area Well-ordered nanodot array pattern fabricated with self-assembled nanosphere template","volume":"8","author":"Li","year":"2008","journal-title":"IEEE Sens. 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