Silver nanocubes were synthesized for the first time in large quantities on gold seed in the presence of a polyelectrolyte using microwave heating for 60-120 s. Our experiment indicates that the polyelectrolyte directs the growth of the particle in a specified crystallographic direction resulting in the faceted particle, i.e. a nanocube. The nanocubes are stable for at least 2 months in ambient conditions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1088/0957-4484/19/6/065604 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tunable Chiroptical Activity in Branched Ag@Au Nanoparticles with Molecular Chirality and Geometric Chirality.
Small
December 2024
State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China.
Chiral plasmonic nanomaterials have attracted significant awareness due to their applications in chiral catalysis, biosensing, photonics, and separation. Constructing plasmonic core-shell nanomaterials with geometric chirality and desirable optical chirality is a crucial yet challenging task for extending the range of chiral plasmonic nanomaterials. Here, a two-step method is reported for the synthesis of Gold (Au) branches wrapped silver (Ag) nanocubes (L/DBAg@Au) with strong and tunable circular dichroism (CD) signals under the regulation of L/D-cysteine (L/D-Cys).
View Article and Find Full Text PDFGreen nitrogen and sulfur co-doped carbon dots derived from eggshell as a high performance aptasensing interface for non-invasive detection of metronidazole.
Talanta
December 2024
Department of Chemistry Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran. Electronic address:
Background: The concentration monitoring of the banned metronidazole (MTZ) drug as the alarmed carcinogenic agent in human biofluids is medically essential. The electrochemical aptasensors are good candidates to overcome some presence challenges in the detection process.
Results: Herein, an electrochemical aptasensor based on nitrogen and sulfur co-doped carbon dots (NcS-CDs) has been developed for the high-sensitive detection of MTZ for the first time.
Theoretical Design of Smart Bionic Skins with Self-Adaptive Temperature Regulation.
Materials (Basel)
November 2024
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Article Synopsis
- Thermal management is a key issue in electric design, especially for compact electronic systems, and this study introduces a bionic skin model that mimics human skin to regulate temperature effectively.
- The artificial skin features phase change material nanoparticles in a thin matrix on a metallic surface, enabling it to maintain a stable temperature around 340 K despite varying external heat conditions.
- The design also includes a plasmonic surface made of silver nanocubes to enhance visible light properties while retaining infrared functionality, providing a cost-effective solution for advanced thermal management in robotics and similar technologies.
Flexible label-free SERS substrate with alginate-chitosan@silver nanocube for in situ nondestructive detection of thiram on apples.
Talanta
February 2025
China Light Industry Key Laboratory of Food Intelligent Detection & Processing, School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang 212013, China.
The rapid in situ detection of pesticide residues in real samples based on surface-enhanced Raman spectroscopy (SERS) remains a challenge, necessitating an urgent need for a feasible solution that addresses issues such as sample complexity, reproducibility, and SERS substrate stability. This paper proposes a flexible SERS substrate, which consists of a composite gel made of sodium alginate-chitosan loaded with silver nanocubes (SA-CTS@AgNCs). The flexible nature of the SERS substrate enables the analysis of irregular surfaces of apples, dispensing with laborious pretreatment and promoting an effective contact with target molecules.
View Article and Find Full Text PDFSuperhydrophobic nanocellulose-based self-assembled flexible SERS substrates for pesticide detection.
Int J Biol Macromol
December 2024
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China. Electronic address:
Flexible surface-enhanced Raman scattering (SERS) substrates that provide simple sampling are helpful for the on-site detection of explosive contamination, pesticide residues on food surfaces, and water pollution in public spaces. Using superhydrophobic nanocellulose-based film as the support, 2D flexible SERS substrates that integrated sampling, enrichment, and detection were successfully fabricated via the solvent-induced evaporation method. This approach enabled the co-loading of two plasmonic nanoparticles with different sizes and shapes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!