Photothermal Soft Nanoballs Developed by Loading Plasmonic Cu2–xSe Nanocrystals into Liposomes for Photothermal Immunoassay of Aflatoxin B1
Photothermal effects (PTEs) have been greatly concerned with the fast development of new photothermal nanomaterials. Herein we propose a photothermal immunoassay (PTIA) by taking mycotoxins (AFB1) as an example based on the PTEs of plasmonic Cu2–xSe nanocrystals (NCs). By loading plasmonic Cu2–xSe N...
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| Veröffentlicht in: | Analytical chemistry (Washington) 2019-04, Vol.91 (7), p.4444 |
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| creator | Li, Xue Yang, Lin Men, Chen Xie, Yi Fen Liu, Jia Jun Zou, Hong Yan Li, Yuan Fang Zhan, Lei Huang, Cheng Zhi |
| description | Photothermal effects (PTEs) have been greatly concerned with the fast development of new photothermal nanomaterials. Herein we propose a photothermal immunoassay (PTIA) by taking mycotoxins (AFB1) as an example based on the PTEs of plasmonic Cu2–xSe nanocrystals (NCs). By loading plasmonic Cu2–xSe NCs into liposomes to form photothermal soft nanoballs (ptSNBs), on which aptamer of AFB1 previously assembled, a sandwich structure of AFB1 could be formed with the aptamer on ptSNBs and capture antibody. The heat released from the ptSNBs under NIR irradiation, owing to the plasmonic photothermal light-to-heat conversion through photon–electron–phonon coupling, makes the temperature of substrate solution increased, and the increased temperature has a linear relationship with the AFB1 content. Owing to the large amounts of plasmonic Cu2–xSe NCs in the ptSNBs, the PTEs get amplified, making AFB1 higher than 1 ng/mL detectable in food even if with a rough homemade immunothermometer. The proposal of PTIA opens a new field of immunoassay including developing photothermal nanostructures, new thermometers, PTIA theory, and so on. |
| doi_str_mv | 10.1021/acs.analchem.8b05031 |
| format | Article |
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Herein we propose a photothermal immunoassay (PTIA) by taking mycotoxins (AFB1) as an example based on the PTEs of plasmonic Cu2–xSe nanocrystals (NCs). By loading plasmonic Cu2–xSe NCs into liposomes to form photothermal soft nanoballs (ptSNBs), on which aptamer of AFB1 previously assembled, a sandwich structure of AFB1 could be formed with the aptamer on ptSNBs and capture antibody. The heat released from the ptSNBs under NIR irradiation, owing to the plasmonic photothermal light-to-heat conversion through photon–electron–phonon coupling, makes the temperature of substrate solution increased, and the increased temperature has a linear relationship with the AFB1 content. Owing to the large amounts of plasmonic Cu2–xSe NCs in the ptSNBs, the PTEs get amplified, making AFB1 higher than 1 ng/mL detectable in food even if with a rough homemade immunothermometer. The proposal of PTIA opens a new field of immunoassay including developing photothermal nanostructures, new thermometers, PTIA theory, and so on.</description><identifier>ISSN: 0003-2700</identifier><identifier>EISSN: 1520-6882</identifier><identifier>DOI: 10.1021/acs.analchem.8b05031</identifier><language>eng</language><publisher>Washington: American Chemical Society</publisher><subject>Aflatoxin B1 ; Aflatoxins ; Analytical chemistry ; Aptamers ; Chemistry ; Crystals ; Immunoassay ; Irradiation ; Liposomes ; Mycotoxins ; Nanocrystals ; Nanomaterials ; Nanotechnology ; Near infrared radiation ; Photothermal conversion ; Radiation ; Sandwich structures ; Substrates ; Temperature ; Thermometers</subject><ispartof>Analytical chemistry (Washington), 2019-04, Vol.91 (7), p.4444</ispartof><rights>Copyright American Chemical Society Apr 2, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27929,27930</link.rule.ids></links><search><creatorcontrib>Li, Xue</creatorcontrib><creatorcontrib>Yang, Lin</creatorcontrib><creatorcontrib>Men, Chen</creatorcontrib><creatorcontrib>Xie, Yi Fen</creatorcontrib><creatorcontrib>Liu, Jia Jun</creatorcontrib><creatorcontrib>Zou, Hong Yan</creatorcontrib><creatorcontrib>Li, Yuan Fang</creatorcontrib><creatorcontrib>Zhan, Lei</creatorcontrib><creatorcontrib>Huang, Cheng Zhi</creatorcontrib><title>Photothermal Soft Nanoballs Developed by Loading Plasmonic Cu2–xSe Nanocrystals into Liposomes for Photothermal Immunoassay of Aflatoxin B1</title><title>Analytical chemistry (Washington)</title><description>Photothermal effects (PTEs) have been greatly concerned with the fast development of new photothermal nanomaterials. Herein we propose a photothermal immunoassay (PTIA) by taking mycotoxins (AFB1) as an example based on the PTEs of plasmonic Cu2–xSe nanocrystals (NCs). By loading plasmonic Cu2–xSe NCs into liposomes to form photothermal soft nanoballs (ptSNBs), on which aptamer of AFB1 previously assembled, a sandwich structure of AFB1 could be formed with the aptamer on ptSNBs and capture antibody. The heat released from the ptSNBs under NIR irradiation, owing to the plasmonic photothermal light-to-heat conversion through photon–electron–phonon coupling, makes the temperature of substrate solution increased, and the increased temperature has a linear relationship with the AFB1 content. Owing to the large amounts of plasmonic Cu2–xSe NCs in the ptSNBs, the PTEs get amplified, making AFB1 higher than 1 ng/mL detectable in food even if with a rough homemade immunothermometer. The proposal of PTIA opens a new field of immunoassay including developing photothermal nanostructures, new thermometers, PTIA theory, and so on.</description><subject>Aflatoxin B1</subject><subject>Aflatoxins</subject><subject>Analytical chemistry</subject><subject>Aptamers</subject><subject>Chemistry</subject><subject>Crystals</subject><subject>Immunoassay</subject><subject>Irradiation</subject><subject>Liposomes</subject><subject>Mycotoxins</subject><subject>Nanocrystals</subject><subject>Nanomaterials</subject><subject>Nanotechnology</subject><subject>Near infrared radiation</subject><subject>Photothermal conversion</subject><subject>Radiation</subject><subject>Sandwich structures</subject><subject>Substrates</subject><subject>Temperature</subject><subject>Thermometers</subject><issn>0003-2700</issn><issn>1520-6882</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpVkLtOwzAYhS0EEqXwBgyWmFN-O4ntjlBulSKo1O6V49g0VeI_xAlqN16AiTfkSQiXhelM3zn6DiHnDCYMOLvUJky015XZ2HqickghZgdkxFIOkVCKH5IRAMQRlwDH5CSELQBjwMSIvC822GG3sW2tK7pE19FH7THXVRXojX21FTa2oPmeZqiL0j_TRaVDjb40dNbzz7eP3dL-IKbdh04PVOk7pFnZYMDaBuqwpf9G5nXde9Qh6D1FR69cpTvclZ5es1Ny5IYKe_aXY7K6u13NHqLs6X4-u8qiRjARcavkYCgMty4BM3UKhDAiljmonMtETiXI2BSgGJjcmGlh0zQR6be-BlXEY3LxW9u0-NLb0K232LfDgWHNOVMxqDSR8Rf4GGo-</recordid><startdate>20190402</startdate><enddate>20190402</enddate><creator>Li, Xue</creator><creator>Yang, Lin</creator><creator>Men, Chen</creator><creator>Xie, Yi Fen</creator><creator>Liu, Jia Jun</creator><creator>Zou, Hong Yan</creator><creator>Li, Yuan Fang</creator><creator>Zhan, Lei</creator><creator>Huang, Cheng Zhi</creator><general>American Chemical Society</general><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7TM</scope><scope>7U5</scope><scope>7U7</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope></search><sort><creationdate>20190402</creationdate><title>Photothermal Soft Nanoballs Developed by Loading Plasmonic Cu2–xSe Nanocrystals into Liposomes for Photothermal Immunoassay of Aflatoxin B1</title><author>Li, Xue ; 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Herein we propose a photothermal immunoassay (PTIA) by taking mycotoxins (AFB1) as an example based on the PTEs of plasmonic Cu2–xSe nanocrystals (NCs). By loading plasmonic Cu2–xSe NCs into liposomes to form photothermal soft nanoballs (ptSNBs), on which aptamer of AFB1 previously assembled, a sandwich structure of AFB1 could be formed with the aptamer on ptSNBs and capture antibody. The heat released from the ptSNBs under NIR irradiation, owing to the plasmonic photothermal light-to-heat conversion through photon–electron–phonon coupling, makes the temperature of substrate solution increased, and the increased temperature has a linear relationship with the AFB1 content. Owing to the large amounts of plasmonic Cu2–xSe NCs in the ptSNBs, the PTEs get amplified, making AFB1 higher than 1 ng/mL detectable in food even if with a rough homemade immunothermometer. The proposal of PTIA opens a new field of immunoassay including developing photothermal nanostructures, new thermometers, PTIA theory, and so on.</abstract><cop>Washington</cop><pub>American Chemical Society</pub><doi>10.1021/acs.analchem.8b05031</doi></addata></record> |
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| subjects | Aflatoxin B1 Aflatoxins Analytical chemistry Aptamers Chemistry Crystals Immunoassay Irradiation Liposomes Mycotoxins Nanocrystals Nanomaterials Nanotechnology Near infrared radiation Photothermal conversion Radiation Sandwich structures Substrates Temperature Thermometers |
| title | Photothermal Soft Nanoballs Developed by Loading Plasmonic Cu2–xSe Nanocrystals into Liposomes for Photothermal Immunoassay of Aflatoxin B1 |
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