One-step growth of high-quality CdTe quantum dots via hydrothermal method and cytotoxicity evaluation
The synthesis of water-soluble and low cytotoxicity quantum dots (QDs) in aqueous solution has received much attention recently. A one-step, rapid, cost-efficient and convenient method has been developed for synthesis of water-soluble CdTe QDs using N-acetyl-L-cysteine (NAC) as the stabilizer via hy...
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| Veröffentlicht in: | Powder technology 2013-10, Vol.247, p.81-86 |
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| creator | Wang, Qisui Zhou, Xiaolan Fang, Tingting Liu, Peng Li, Xi Min, Xinmin |
| description | The synthesis of water-soluble and low cytotoxicity quantum dots (QDs) in aqueous solution has received much attention recently. A one-step, rapid, cost-efficient and convenient method has been developed for synthesis of water-soluble CdTe QDs using N-acetyl-L-cysteine (NAC) as the stabilizer via hydrothermal route. NAC not only acts as a stabilizer but also undergoes gradual thermal decomposition to release free S2−, forming a CdS shell on the CdTe core, and resulting in low cytotoxicity. The optical properties of QDs are characterized by absorption and fluorescence (FL) spectra. The structure of QDs was verified by TEM, XRD, XPS, EDS, and FTIR. The formation mechanism of core/shell QDs is also discussed in detail. Furthermore, the result of microcalorimetric technique showed our as-prepared CdTe QDs exhibit lower cytotoxicity than previous synthesized QDs (e.g., MPA-capped CdTe QDs).
A one-step method has been developed for synthesis of NAC-capped CdTe/CdS QDs via hydrothermal method [Display omitted]
•A one-step, rapid, cost-efficient and convenient method has been developed for QDs.•The microcalorimetric technique is used to evaluate the cytotoxicity of QDs.•The formation mechanism of core/shell QDs is discussed in detail. |
| doi_str_mv | 10.1016/j.powtec.2013.07.007 |
| format | Article |
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A one-step method has been developed for synthesis of NAC-capped CdTe/CdS QDs via hydrothermal method [Display omitted]
•A one-step, rapid, cost-efficient and convenient method has been developed for QDs.•The microcalorimetric technique is used to evaluate the cytotoxicity of QDs.•The formation mechanism of core/shell QDs is discussed in detail.</description><identifier>ISSN: 0032-5910</identifier><identifier>EISSN: 1873-328X</identifier><identifier>DOI: 10.1016/j.powtec.2013.07.007</identifier><identifier>CODEN: POTEBX</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>absorption ; acetylcysteine ; Applied sciences ; aqueous solutions ; Cadmium tellurides ; CdTe quantum dots ; Chemical engineering ; cost effectiveness ; cytotoxicity ; Exact sciences and technology ; fluorescence ; Fourier transform infrared spectroscopy ; Hydrothermal route ; Low cytotoxicity ; Microcalorimetry ; Miscellaneous ; N-acetyl-L-cysteine ; One-step ; Optical properties ; Powder technology ; Quantum dots ; Shells ; Solid-solid systems ; Spectra ; Synthesis ; thermal degradation ; transmission electron microscopy ; X-ray diffraction ; X-ray photoelectron spectroscopy</subject><ispartof>Powder technology, 2013-10, Vol.247, p.81-86</ispartof><rights>2013 Elsevier B.V.</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-da2f3899b3270c3d04f2c94c669f22e28a90bd4e7ff95bab18310e3f5a632cd93</citedby><cites>FETCH-LOGICAL-c393t-da2f3899b3270c3d04f2c94c669f22e28a90bd4e7ff95bab18310e3f5a632cd93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.powtec.2013.07.007$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27801258$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Qisui</creatorcontrib><creatorcontrib>Zhou, Xiaolan</creatorcontrib><creatorcontrib>Fang, Tingting</creatorcontrib><creatorcontrib>Liu, Peng</creatorcontrib><creatorcontrib>Li, Xi</creatorcontrib><creatorcontrib>Min, Xinmin</creatorcontrib><title>One-step growth of high-quality CdTe quantum dots via hydrothermal method and cytotoxicity evaluation</title><title>Powder technology</title><description>The synthesis of water-soluble and low cytotoxicity quantum dots (QDs) in aqueous solution has received much attention recently. A one-step, rapid, cost-efficient and convenient method has been developed for synthesis of water-soluble CdTe QDs using N-acetyl-L-cysteine (NAC) as the stabilizer via hydrothermal route. NAC not only acts as a stabilizer but also undergoes gradual thermal decomposition to release free S2−, forming a CdS shell on the CdTe core, and resulting in low cytotoxicity. The optical properties of QDs are characterized by absorption and fluorescence (FL) spectra. The structure of QDs was verified by TEM, XRD, XPS, EDS, and FTIR. The formation mechanism of core/shell QDs is also discussed in detail. Furthermore, the result of microcalorimetric technique showed our as-prepared CdTe QDs exhibit lower cytotoxicity than previous synthesized QDs (e.g., MPA-capped CdTe QDs).
A one-step method has been developed for synthesis of NAC-capped CdTe/CdS QDs via hydrothermal method [Display omitted]
•A one-step, rapid, cost-efficient and convenient method has been developed for QDs.•The microcalorimetric technique is used to evaluate the cytotoxicity of QDs.•The formation mechanism of core/shell QDs is discussed in detail.</description><subject>absorption</subject><subject>acetylcysteine</subject><subject>Applied sciences</subject><subject>aqueous solutions</subject><subject>Cadmium tellurides</subject><subject>CdTe quantum dots</subject><subject>Chemical engineering</subject><subject>cost effectiveness</subject><subject>cytotoxicity</subject><subject>Exact sciences and technology</subject><subject>fluorescence</subject><subject>Fourier transform infrared spectroscopy</subject><subject>Hydrothermal route</subject><subject>Low cytotoxicity</subject><subject>Microcalorimetry</subject><subject>Miscellaneous</subject><subject>N-acetyl-L-cysteine</subject><subject>One-step</subject><subject>Optical properties</subject><subject>Powder technology</subject><subject>Quantum dots</subject><subject>Shells</subject><subject>Solid-solid systems</subject><subject>Spectra</subject><subject>Synthesis</subject><subject>thermal degradation</subject><subject>transmission electron microscopy</subject><subject>X-ray diffraction</subject><subject>X-ray photoelectron spectroscopy</subject><issn>0032-5910</issn><issn>1873-328X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kE2LFDEQhhtRcFz3HyyYi-Cl20rSX7kIMrgqLOzBXfAWMkllOkN3ZzZJj86_3wy9ePQUCp73rdRTFDcUKgq0_Xyojv5PQl0xoLyCrgLoXhUb2ne85Kz__brYAHBWNoLC2-JdjAcAaDmFTYH3M5Yx4ZHsQ-4YiLdkcPuhfFrU6NKZbM0DkjzMaZmI8SmSk1NkOJvg04BhUiOZMA3eEDUbos_JJ__X6UsUT2pcVHJ-fl-8sWqMeP3yXhWPt98etj_Ku_vvP7df70rNBU-lUczyXogdZx1obqC2TItat62wjCHrlYCdqbGzVjQ7taN9vgG5bVTLmTaCXxWf1t5j8E8LxiQnFzWOo5rRL1HSuq2bvmkFzWi9ojr4GANaeQxuUuEsKciLVXmQq1V5sSqhk9lqjn182aCiVqMNatYu_suyrgfKmj5zH1bOKi_VPmTm8VcuaiBX95SyTHxZCcxCTg6DjNrhrNG4gDpJ493_v_IMHL-afw</recordid><startdate>20131001</startdate><enddate>20131001</enddate><creator>Wang, Qisui</creator><creator>Zhou, Xiaolan</creator><creator>Fang, Tingting</creator><creator>Liu, Peng</creator><creator>Li, Xi</creator><creator>Min, Xinmin</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20131001</creationdate><title>One-step growth of high-quality CdTe quantum dots via hydrothermal method and cytotoxicity evaluation</title><author>Wang, Qisui ; Zhou, Xiaolan ; Fang, Tingting ; Liu, Peng ; Li, Xi ; Min, Xinmin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-da2f3899b3270c3d04f2c94c669f22e28a90bd4e7ff95bab18310e3f5a632cd93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>absorption</topic><topic>acetylcysteine</topic><topic>Applied sciences</topic><topic>aqueous solutions</topic><topic>Cadmium tellurides</topic><topic>CdTe quantum dots</topic><topic>Chemical engineering</topic><topic>cost effectiveness</topic><topic>cytotoxicity</topic><topic>Exact sciences and technology</topic><topic>fluorescence</topic><topic>Fourier transform infrared spectroscopy</topic><topic>Hydrothermal route</topic><topic>Low cytotoxicity</topic><topic>Microcalorimetry</topic><topic>Miscellaneous</topic><topic>N-acetyl-L-cysteine</topic><topic>One-step</topic><topic>Optical properties</topic><topic>Powder technology</topic><topic>Quantum dots</topic><topic>Shells</topic><topic>Solid-solid systems</topic><topic>Spectra</topic><topic>Synthesis</topic><topic>thermal degradation</topic><topic>transmission electron microscopy</topic><topic>X-ray diffraction</topic><topic>X-ray photoelectron spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Qisui</creatorcontrib><creatorcontrib>Zhou, Xiaolan</creatorcontrib><creatorcontrib>Fang, Tingting</creatorcontrib><creatorcontrib>Liu, Peng</creatorcontrib><creatorcontrib>Li, Xi</creatorcontrib><creatorcontrib>Min, Xinmin</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Powder technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Qisui</au><au>Zhou, Xiaolan</au><au>Fang, Tingting</au><au>Liu, Peng</au><au>Li, Xi</au><au>Min, Xinmin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>One-step growth of high-quality CdTe quantum dots via hydrothermal method and cytotoxicity evaluation</atitle><jtitle>Powder technology</jtitle><date>2013-10-01</date><risdate>2013</risdate><volume>247</volume><spage>81</spage><epage>86</epage><pages>81-86</pages><issn>0032-5910</issn><eissn>1873-328X</eissn><coden>POTEBX</coden><abstract>The synthesis of water-soluble and low cytotoxicity quantum dots (QDs) in aqueous solution has received much attention recently. A one-step, rapid, cost-efficient and convenient method has been developed for synthesis of water-soluble CdTe QDs using N-acetyl-L-cysteine (NAC) as the stabilizer via hydrothermal route. NAC not only acts as a stabilizer but also undergoes gradual thermal decomposition to release free S2−, forming a CdS shell on the CdTe core, and resulting in low cytotoxicity. The optical properties of QDs are characterized by absorption and fluorescence (FL) spectra. The structure of QDs was verified by TEM, XRD, XPS, EDS, and FTIR. The formation mechanism of core/shell QDs is also discussed in detail. Furthermore, the result of microcalorimetric technique showed our as-prepared CdTe QDs exhibit lower cytotoxicity than previous synthesized QDs (e.g., MPA-capped CdTe QDs).
A one-step method has been developed for synthesis of NAC-capped CdTe/CdS QDs via hydrothermal method [Display omitted]
•A one-step, rapid, cost-efficient and convenient method has been developed for QDs.•The microcalorimetric technique is used to evaluate the cytotoxicity of QDs.•The formation mechanism of core/shell QDs is discussed in detail.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.powtec.2013.07.007</doi><tpages>6</tpages></addata></record> |
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| subjects | absorption acetylcysteine Applied sciences aqueous solutions Cadmium tellurides CdTe quantum dots Chemical engineering cost effectiveness cytotoxicity Exact sciences and technology fluorescence Fourier transform infrared spectroscopy Hydrothermal route Low cytotoxicity Microcalorimetry Miscellaneous N-acetyl-L-cysteine One-step Optical properties Powder technology Quantum dots Shells Solid-solid systems Spectra Synthesis thermal degradation transmission electron microscopy X-ray diffraction X-ray photoelectron spectroscopy |
| title | One-step growth of high-quality CdTe quantum dots via hydrothermal method and cytotoxicity evaluation |
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