Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible Properties
Chiral molecules are ubiquitous in nature and biological systems, where the unique optical and physical properties of chiral nanoparticles are closely linked to their shapes. Synthesizing chiral plasmonic nanomaterials with precise structures and tunable sizes is essential for exploring their applic...
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MDPI AG
2024-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/14/24/2040 |
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| author | Shengmiao Liu Jianhao Zhang Wenjing Yan |
| author_facet | Shengmiao Liu Jianhao Zhang Wenjing Yan |
| author_sort | Shengmiao Liu |
| collection | DOAJ |
| description | Chiral molecules are ubiquitous in nature and biological systems, where the unique optical and physical properties of chiral nanoparticles are closely linked to their shapes. Synthesizing chiral plasmonic nanomaterials with precise structures and tunable sizes is essential for exploring their applications. This study presents a method for growing three-dimensional chiral gold nanoflowers (Au NFs) derived from trisoctahedral (TOH) nanocrystals using D-cysteine and L-cysteine as chiral inducers. By employing a two-step seed-mediated growth approach, stable chiral Au nanoparticles with customizable sizes, shapes, and optical properties were produced by adjusting the Au nanosphere (Au NP) seed concentration and cysteine dosage. These nanoparticles exhibited optical activity in both the visible and near-infrared regions, with a maximum anisotropy factor (<i>g</i>-factor) of 0.024. Furthermore, the PEG-modified chiral Au NFs demonstrated excellent biocompatibility. This approach provides a precise method for geometrically controlling the design of three-dimensional chiral nanomaterials, holding great potential for biomedical applications. |
| format | Article |
| id | doaj-art-9bc7469ca3cb470482d87ca93405b99a |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-9bc7469ca3cb470482d87ca93405b99a2024-12-27T14:43:34ZengMDPI AGNanomaterials2079-49912024-12-011424204010.3390/nano14242040Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible PropertiesShengmiao Liu0Jianhao Zhang1Wenjing Yan2College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaChiral molecules are ubiquitous in nature and biological systems, where the unique optical and physical properties of chiral nanoparticles are closely linked to their shapes. Synthesizing chiral plasmonic nanomaterials with precise structures and tunable sizes is essential for exploring their applications. This study presents a method for growing three-dimensional chiral gold nanoflowers (Au NFs) derived from trisoctahedral (TOH) nanocrystals using D-cysteine and L-cysteine as chiral inducers. By employing a two-step seed-mediated growth approach, stable chiral Au nanoparticles with customizable sizes, shapes, and optical properties were produced by adjusting the Au nanosphere (Au NP) seed concentration and cysteine dosage. These nanoparticles exhibited optical activity in both the visible and near-infrared regions, with a maximum anisotropy factor (<i>g</i>-factor) of 0.024. Furthermore, the PEG-modified chiral Au NFs demonstrated excellent biocompatibility. This approach provides a precise method for geometrically controlling the design of three-dimensional chiral nanomaterials, holding great potential for biomedical applications.https://www.mdpi.com/2079-4991/14/24/2040chiral nanomaterialscysteine<i>g</i>-factoroptical propertiesbiocompatibility |
| spellingShingle | Shengmiao Liu Jianhao Zhang Wenjing Yan Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible Properties Nanomaterials chiral nanomaterials cysteine <i>g</i>-factor optical properties biocompatibility |
| title | Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible Properties |
| title_full | Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible Properties |
| title_fullStr | Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible Properties |
| title_full_unstemmed | Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible Properties |
| title_short | Controllable Synthesis of Three-Dimensional Chiral Au Nanoflowers Induced by Cysteine with Excellent Biocompatible Properties |
| title_sort | controllable synthesis of three dimensional chiral au nanoflowers induced by cysteine with excellent biocompatible properties |
| topic | chiral nanomaterials cysteine <i>g</i>-factor optical properties biocompatibility |
| url | https://www.mdpi.com/2079-4991/14/24/2040 |
| work_keys_str_mv | AT shengmiaoliu controllablesynthesisofthreedimensionalchiralaunanoflowersinducedbycysteinewithexcellentbiocompatibleproperties AT jianhaozhang controllablesynthesisofthreedimensionalchiralaunanoflowersinducedbycysteinewithexcellentbiocompatibleproperties AT wenjingyan controllablesynthesisofthreedimensionalchiralaunanoflowersinducedbycysteinewithexcellentbiocompatibleproperties |