Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag Nanoparticles
Magnetic–plasmonic nanoparticles (NPs) have attracted great interest in many fields because they can exhibit more physical and chemical properties than individual magnetic or plasmonic NPs. In this work, we synthesized Au- or Ag-decorated Fe<sub>3</sub>O<sub>4</sub> nanoparti...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/17/2/509 |
| _version_ | 1797343046694600704 |
|---|---|
| author | Shuya Ning Shuo Wang Zhihui Liu Naming Zhang Bin Yang Fanghui Zhang |
| author_facet | Shuya Ning Shuo Wang Zhihui Liu Naming Zhang Bin Yang Fanghui Zhang |
| author_sort | Shuya Ning |
| collection | DOAJ |
| description | Magnetic–plasmonic nanoparticles (NPs) have attracted great interest in many fields because they can exhibit more physical and chemical properties than individual magnetic or plasmonic NPs. In this work, we synthesized Au- or Ag-decorated Fe<sub>3</sub>O<sub>4</sub> nanoparticles coated with PEI (Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs) using a simple method. The influences of the plasmonic metal NPs’ (Au or Ag) coating density on the magnetic and plasmonic properties of the Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs were investigated, and the density of the plasmonic metal NPs coated on the Fe<sub>3</sub>O<sub>4</sub> NPs surfaces could be adjusted by controlling the polyethyleneimine (PEI) concentration. It showed that the Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs exhibited both magnetic and plasmonic properties. When the PEI concentration increased from 5 to 35 mg/mL, the coating density of the Au or Ag NPs on the Fe<sub>3</sub>O<sub>4</sub> NPs surfaces increased, the corresponding magnetic intensity became weaker, and the plasmonic intensity was stronger. At the same time, the plasmonic resonance peak of the Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs was red shifted. Therefore, there was an optimal coverage of the plasmonic metal NPs on the Fe<sub>3</sub>O<sub>4</sub> NPs surfaces to balance the magnetic and plasmonic properties when the PEI concentration was between 15 and 25 mg/mL. This result can guide the application of the Fe<sub>3</sub>O<sub>4</sub>-M (M = Au or Ag) NPs in the biomedical field. |
| first_indexed | 2024-03-08T10:42:01Z |
| format | Article |
| id | doaj.art-1caa401c7e774725a5cc3941c128b7e1 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-08T10:42:01Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-1caa401c7e774725a5cc3941c128b7e12024-01-26T17:30:38ZengMDPI AGMaterials1996-19442024-01-0117250910.3390/ma17020509Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag NanoparticlesShuya Ning0Shuo Wang1Zhihui Liu2Naming Zhang3Bin Yang4Fanghui Zhang5School of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an 710021, ChinaSchool of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an 710021, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an 710021, ChinaMagnetic–plasmonic nanoparticles (NPs) have attracted great interest in many fields because they can exhibit more physical and chemical properties than individual magnetic or plasmonic NPs. In this work, we synthesized Au- or Ag-decorated Fe<sub>3</sub>O<sub>4</sub> nanoparticles coated with PEI (Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs) using a simple method. The influences of the plasmonic metal NPs’ (Au or Ag) coating density on the magnetic and plasmonic properties of the Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs were investigated, and the density of the plasmonic metal NPs coated on the Fe<sub>3</sub>O<sub>4</sub> NPs surfaces could be adjusted by controlling the polyethyleneimine (PEI) concentration. It showed that the Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs exhibited both magnetic and plasmonic properties. When the PEI concentration increased from 5 to 35 mg/mL, the coating density of the Au or Ag NPs on the Fe<sub>3</sub>O<sub>4</sub> NPs surfaces increased, the corresponding magnetic intensity became weaker, and the plasmonic intensity was stronger. At the same time, the plasmonic resonance peak of the Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) NPs was red shifted. Therefore, there was an optimal coverage of the plasmonic metal NPs on the Fe<sub>3</sub>O<sub>4</sub> NPs surfaces to balance the magnetic and plasmonic properties when the PEI concentration was between 15 and 25 mg/mL. This result can guide the application of the Fe<sub>3</sub>O<sub>4</sub>-M (M = Au or Ag) NPs in the biomedical field.https://www.mdpi.com/1996-1944/17/2/509Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) nanoparticlesplasmonicmagnetic |
| spellingShingle | Shuya Ning Shuo Wang Zhihui Liu Naming Zhang Bin Yang Fanghui Zhang Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag Nanoparticles Materials Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) nanoparticles plasmonic magnetic |
| title | Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag Nanoparticles |
| title_full | Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag Nanoparticles |
| title_fullStr | Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag Nanoparticles |
| title_full_unstemmed | Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag Nanoparticles |
| title_short | Study on Magnetic and Plasmonic Properties of Fe<sub>3</sub>O<sub>4</sub>-PEI-Au and Fe<sub>3</sub>O<sub>4</sub>-PEI-Ag Nanoparticles |
| title_sort | study on magnetic and plasmonic properties of fe sub 3 sub o sub 4 sub pei au and fe sub 3 sub o sub 4 sub pei ag nanoparticles |
| topic | Fe<sub>3</sub>O<sub>4</sub>-PEI-M (M = Au or Ag) nanoparticles plasmonic magnetic |
| url | https://www.mdpi.com/1996-1944/17/2/509 |
| work_keys_str_mv | AT shuyaning studyonmagneticandplasmonicpropertiesoffesub3subosub4subpeiauandfesub3subosub4subpeiagnanoparticles AT shuowang studyonmagneticandplasmonicpropertiesoffesub3subosub4subpeiauandfesub3subosub4subpeiagnanoparticles AT zhihuiliu studyonmagneticandplasmonicpropertiesoffesub3subosub4subpeiauandfesub3subosub4subpeiagnanoparticles AT namingzhang studyonmagneticandplasmonicpropertiesoffesub3subosub4subpeiauandfesub3subosub4subpeiagnanoparticles AT binyang studyonmagneticandplasmonicpropertiesoffesub3subosub4subpeiauandfesub3subosub4subpeiagnanoparticles AT fanghuizhang studyonmagneticandplasmonicpropertiesoffesub3subosub4subpeiauandfesub3subosub4subpeiagnanoparticles |