Fluorescent silver nanoparticles (FSNPs) have gained significant attention in recent years due to their unique optical properties and potential applications in various fields, including biomedicine and environmental monitoring. Fluorescence is the emission of light by a material that has absorbed light or other electromagnetic radiation. FSNPs are silver nanoparticles that exhibit fluorescence when excited by light and are labeled with a fluorescent molecule to enhance their detection. This fluorescence is due to the interaction between the silver nanoparticles and the surrounding environment, which can include biological molecules, polymers, or other materials.
Applications of Fluorescent Silver Nanoparticles
FSNPs have shown promise in biomedical applications due to their unique optical properties. The following are some potential applications of FSNPs in biomedicine:
--Biosensors: FSNPs can be used as biosensors to detect specific molecules in a sample, such as disease biomarkers or environmental pollutants. They can be functionalized with targeting molecules to bind to specific molecules, and their fluorescence can be used to detect the presence of the target molecule.
--Imaging: FSNPs can be used in imaging applications, such as fluorescence microscopy and in vivo imaging. They can be functionalized with targeting molecules to bind to specific cells or tissues, and their fluorescence can be used to visualize the cells or tissues.
--Drug Delivery: FSNPs have shown promise as a drug delivery system, as they can be functionalized with targeting molecules to deliver drugs to specific cells or tissues. They can also be used to improve the solubility and bioavailability of drugs.
Production of Fluorescent Silver Nanoparticles
FSNPs can be prepared through various methods, including chemical reduction, electrochemical deposition, and laser ablation. The choice of method depends on the desired size and shape of the nanoparticles, as well as the specific functional group that will be used for modification.
--Chemical Reduction: A reducing agent is added to a silver salt solution to reduce the silver ions to silver atoms, which then aggregate to form nanoparticles. The reducing agent can be a chemical substance such as sodium borohydride or hydrazine, or a biological agent such as plant extracts.
--Electrochemical Deposition: Electrochemical deposition involves the reduction of silver ions at the cathode of an electrochemical cell to form nanoparticles. The size and shape of the nanoparticles can be controlled by adjusting the deposition parameters, such as the voltage and current density.
--Laser Ablation: Laser ablation involves the use of a high-energy laser to vaporize a silver target in a liquid medium, which then condenses to form nanoparticles. The size and shape of the nanoparticles can be controlled by adjusting the laser parameters, such as the wavelength and pulse duration.
To label the FSNPs, a fluorescent molecule is added to the reaction mixture during the synthesis process. The fluorescent molecule can be a dye, such as rhodamine or fluorescein, or a quantum dot.
Product Description
The fluorescent silver nanoparticles (FSNPs) provided by Alpha Lifetech Inc. have diameters of 10 nm to 200 nm, The fluorescent silver nanoparticles (FSNPs) are labeled with different kinds of fluorescent molecules. Alpha Lifetech Inc. provides CY series cyanine dyes: CY7.5, ICG, CY3, CY5, CY5.5, CY7, fluorescein FITC; Bodipy series dyes and coumarin series dyes, near-infrared IR series and ICG series dyes.
Product details
Purity: 98%
Storage time: 2 year
Specification: mg
Appearance: solid/powder
Storage conditions: Dark storage at -20 ℃.
Function: Only for scientific research, not for human body.
The fluorescence intensity in the biological environment for polymer nanoparticles loaded with aggregated solid-state fluorescent probes will increase several times over time , which is caused by the fluorescent probes switching from an aggregation-induced quenching state to a fluorescence enhancement state.
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