Key Features

• High Surface Area: The hollow mesoporous structure provides a large surface area, which improves catalytic activity and reaction efficiency.
• Hollow Structure: The hollow core reduces the weight of the material while increasing its porosity, significantly enhancing its adsorption capacity and efficiency as a drug delivery system.
• Magnetic Properties: These nanoparticles are superparamagnetic, meaning they can be rapidly magnetized and demagnetized under an external magnetic field without hysteresis, making them suitable for applications such as MRI, magnetic hyperthermia (MHT), and drug delivery.
• Biocompatibility and Biodegradability: Fe₃O₄ generally has excellent biocompatibility and biodegradability, making it ideal for biomedical applications.

Applications

• Cancer Diagnosis and Treatment: Hollow mesoporous Fe₃O₄ nanoparticles are used in MRI, MHT, and drug delivery, providing innovative solutions for cancer diagnosis and therapy.
• Drug Delivery: As a drug carrier, these nanoparticles can deliver drugs to targeted areas under the influence of an external magnetic field, reducing the required dosage and enhancing therapeutic effectiveness.
• Magnetic Hyperthermia (MHT): In alternating magnetic fields, Fe₃O₄ nanoparticles generate heat, which can be used for cancer treatment. By optimizing core size, adding components, changing shapes, and surface modification, magnetic hyperthermia effects can be enhanced.
• Environmental Remediation: In wastewater treatment, hollow mesoporous Fe₃O₄ nanoparticles exhibit excellent adsorption properties, chemical stability, and ease of separation and recovery, making them effective in removing pollutants from water.
• Biosensors: Due to their high surface area and good biocompatibility, these nanoparticles can be used in the construction of biosensors, improving detection sensitivity and specificity.

Key Features

• Superparamagnetism: These nanoparticles possess superparamagnetic properties, allowing them to quickly magnetize and demagnetize in an external magnetic field, making them suitable for MRI and magnetic hyperthermia (MHT) applications.
• Oil Solubility: The oleic acid modification imparts oil solubility to the Fe₃O₄ nanoparticles, enabling them to disperse in solvents like chloroform and n-hexane, ideal for oil-phase systems.
• Surface Modification: The oleic acid modification enhances nanoparticle stability and provides surface groups that can be further modified, facilitating the conjugation of chemical or biological molecules.
• Stability: The oleic acid coating improves the physical and chemical stability of the nanoparticles, ensuring their performance remains consistent across various storage and application environments.

Applications

• MRI Contrast Agent: Due to their superparamagnetism, these oleic acid-modified Fe₃O₄ nanoparticles can serve as negative contrast agents for MRI, significantly enhancing image contrast and aiding in the clear visualization of tissues and organs.
• Biosensing and Detection: In biosensors, the Fe₃O₄ nanoparticles act as signal transducers or enhancers, improving detection sensitivity and selectivity.
• Water-in-Oil Nanoemulsions: Oleic acid-modified Fe₃O₄ nanoparticles can be dispersed in oil phases to enhance the functionality of water-in-oil nanoemulsions.
• Environmental Remediation: These nanoparticles are useful for adsorbing and separating pollutants, particularly in water treatment and soil remediation applications.

Key Features

• Oil Solubility: These nanoparticles are oil-soluble and can be dispersed in organic solvents such as cyclohexane, chloroform, and tetrahydrofuran, making them suitable for various solvent systems.
• Synthesis via High-Temperature Pyrolysis: The high-temperature pyrolysis method used in the synthesis ensures that the oleic acid-modified Fe₃O₄ nanoparticles possess strong magnetic properties and uniform size distribution.
• Stability: The oleic acid modification enhances the stability of the nanoparticles, ensuring their long-term performance across various applications.
• Versatile Specifications: Various sizes of nanoparticles are available to meet the requirements of different applications.

Applications

• MRI Contrast Agent: Due to their superparamagnetism, these nanoparticles can be used as contrast agents in MRI, enhancing image contrast for clearer observation of tissues and organs.
• Biosensors and Detection: In biosensors, Fe₃O₄ nanoparticles can function as signal converters or enhancers, improving detection sensitivity and selectivity.
• Water-in-Oil Nanoemulsions: Oleic acid-modified Fe₃O₄ nanoparticles can be dispersed in organic solvents for incorporation into water-in-oil nanoemulsions, with applications in pharmaceuticals and cosmetics.

Key Features

• High Surface Negative Charge: DMSA molecules form stable covalent bonds with the surface of Fe₃O₄ nanoparticles via their thiol groups, creating a thick molecular coating that imparts a strong negative surface charge to the nanoparticles.
• Hydrophilicity: DMSA-modified Fe₃O₄ nanoparticles exhibit excellent hydrophilicity, maintaining stability across a wide range of pH values.
• Stability and Dispersion: The DMSA modification ensures good dispersion and stability of the nanoparticles, making them ideal for biological applications.
• Suitable for Biomolecule Conjugation: Due to the carboxyl groups on the surface, DMSA-modified Fe₃O₄ nanoparticles can be used for biomolecule conjugation and immobilization, facilitating the construction of nanoprobes for various applications.

Applications

• Biomedical Applications: Due to their excellent biocompatibility and stability, DMSA-modified Fe₃O₄ nanoparticles serve as ideal drug carriers for targeted drug delivery and as contrast agents for MRI.
• Magnetic Hyperthermia Therapy (MHT): Under the influence of an alternating magnetic field, DMSA-modified Fe₃O₄ nanoparticles convert magnetic energy into heat, making them suitable for magnetic hyperthermia treatments for tumors.
• Gene Therapy: These nanoparticles can be used as gene carriers in gene transfection and gene therapy applications.
• Materials Science: DMSA-modified Fe₃O₄ nanoparticles enhance the magnetic properties of composite materials and can be applied in the development of smart materials and sensors.
• Biomolecule Conjugation: The carboxyl groups on the surface can be used to conjugate biomolecules, enabling the construction of nanoprobes for biological detection and analysis.

Key Features

• High Surface Negative Charge: DMSA molecules form stable covalent bonds with the surface of Fe₃O₄ nanoparticles, imparting a high surface negative charge, which enhances their stability and biocompatibility.
• Hydrophilicity: Carboxylation modification makes Fe₃O₄ nanoparticles hydrophilic, ensuring stability across a wide pH range, making them suitable for various biological environments.
• Stability and Dispersibility: Thanks to DMSA modification, these nanoparticles demonstrate excellent dispersibility and long-term stability, ideal for biomedical applications.
• Biomolecule Coupling Ability: The presence of carboxyl groups on the surface enables these nanoparticles to couple with biomolecules, making them suitable for constructing nanoprobes and biological analysis.

Applications

• Biomedical Applications: With excellent biocompatibility and stability, DMSA-modified Fe₃O₄ nanoparticles can be used as drug carriers, enhancing targeted drug delivery and MRI contrast enhancement.
• Magnetic Hyperthermia (MHT): Under an alternating magnetic field, the nanoparticles can convert magnetic energy into heat, making them useful for cancer treatment through magnetic hyperthermia, offering high biological safety and deep tissue penetration.
• Gene Therapy: These nanoparticles can be used as gene carriers for gene transfection and therapy, promoting gene delivery within cells.
• Material Science: DMSA-modified Fe₃O₄ nanoparticles can enhance the magnetic properties of composite materials, widely used in the development of smart materials and sensors.
• Biomolecule Coupling: The surface carboxyl groups enable coupling with biomolecules (e.g., antibodies, proteins), making them useful for constructing nanoprobes for biological detection and analysis.

Key Features

• Surface Functionalization with Carboxyl Groups: The carboxylated surface offers additional chemical functionalization sites, facilitating biomolecule conjugation and immobilization.
• High Negative Surface Charge: The carboxyl group modification increases the negative surface charge, improving the nanoparticles’ stability in biological systems.
• High Loading Capacity: Capable of carrying a high molecular load, making them suitable for drug delivery and molecular probe applications.
• Dispersion and Stability: Exhibits excellent dispersion and stability, enabling long-term storage and use.

Applications

• Biomolecule Conjugation: The carboxylated surface allows these nanoparticles to couple with various biomolecules, facilitating the construction of molecular probes.
• Immobilization: With a high surface area and loading capacity, these nanoparticles can immobilize enzymes, antibodies, and other biomolecules, useful for biocatalysis and immunoassays.
• Magnetic Resonance Imaging (MRI) Contrast Agents: Due to their excellent magnetic properties, these nanoparticles are well-suited for use as MRI contrast agents, enhancing imaging contrast, particularly in animal studies.
• Drug Delivery: With their biocompatibility and magnetic properties, they can be used in targeted drug delivery systems, reducing side effects and enhancing therapeutic efficacy.

Key Features

• Superparamagnetism: Fe₃O₄ nanoparticles exhibit superparamagnetic behavior, which allows them to magnetize and demagnetize quickly in the presence of an external magnetic field. This property is ideal for applications in MRI and MHT.
• Carboxyl Functionalization: The carboxylated surface provides active chemical groups that facilitate covalent bonding with drugs, biomolecules, or targeting ligands, enhancing the possibilities for functionalization.
• Biocompatibility: The modification with carboxylated dextran improves the nanoparticles’ biocompatibility, reducing potential toxicity to normal cells.
• Stability: Carboxylated dextran modification improves nanoparticle stability in biological systems, reducing the risk of aggregation and precipitation, and ensuring a longer circulation time in the bloodstream.

Applications

• Magnetic Resonance Imaging (MRI): Carboxylated dextran-modified Fe₃O₄ nanoparticles serve as MRI contrast agents, enhancing imaging signals and improving image quality.
• Magnetic Hyperthermia (MHT): These nanoparticles generate heat under an alternating magnetic field and can be used in cancer therapy to selectively kill cancer cells through magnetic hyperthermia.
• Drug Delivery: The carboxylated dextran-modified Fe₃O₄ nanoparticles act as drug carriers, enabling targeted drug delivery via their magnetic properties and hydrophilicity, thus enhancing therapeutic efficacy.
• Biomolecule Conjugation: The nanoparticles’ surface, rich in carboxyl groups, allows conjugation with proteins, antibodies, enzymes, and other biomolecules, making them suitable for biosensing, diagnostics, and therapy.
• Nanoprobe Construction: Carboxylated dextran-modified Fe₃O₄ nanoparticles can be used to construct nanoprobe-based systems for biological detection and analysis.

Key Features

• High Surface Area: Due to their nano size, Fe₃O₄ nanoparticles possess a large specific surface area, allowing for rapid reactions with other substances and enhancing catalytic activity.
• Excellent Magnetic Properties: They have high saturation magnetization and coercivity, making them suitable for various magnetic, biomedical, and magnetic fluid applications.
• High Reactivity: The high surface energy of the nanoparticles provides increased reactivity, enabling them to react quickly with other molecules, thus improving reaction efficiency.

Applications

• Biomedical Applications: Used as a targeted drug delivery vehicle, MRI contrast agent, and tools for biological separation and purification.
• Environmental Remediation: Applied in the adsorption and removal of heavy metal ions and the degradation of organic pollutants in environmental remediation.
• Catalysis: Due to their high surface area and excellent catalytic properties, Fe₃O₄ nanoparticles are widely used as catalysts or catalyst supports in chemical engineering and energy sectors.

Key Features

• Superparamagnetism: The iron oxide nanorods quickly magnetize and demagnetize under an external magnetic field, making them suitable for MRI and MHT applications.
• Chemical Stability: These nanorods are relatively stable in biological systems and are resistant to chemical changes, extending their useful life.
• Biocompatibility: With good biocompatibility, they can interact with biological tissues and cells without affecting their normal functions, ensuring safety in biomedical applications.

Applications

• Magnetic Resonance Imaging (MRI): Iron oxide nanorods serve as T2-weighted MRI contrast agents, enhancing image contrast and improving the clarity and accuracy of scans, especially for detecting abnormal tissues or organs.
• Magnetic Hyperthermia (MHT): Under an alternating magnetic field, these nanorods generate localized heat, which can destroy tumor cells, making them a promising approach in cancer treatment.
• Drug Delivery: These nanorods can act as drug carriers, accumulating in tumor tissues via the enhanced permeability and retention (EPR) effect, thereby improving the targeted delivery and efficiency of drugs.

Key Features

• Excellent Magnetism: High saturated magnetizationof 230±20 GS ensures efficient response to external magnetic fields.
• Nanometer-Scale Particles: The fine particle size (10nm) enhances fluid stability and surface reactivity, contributing to superior performance in sensitive applications.
• Moderate Viscosity: A viscosity of 8 cp (25°C) makes it easy to handle and flow under a wide range of conditions.
• High Magnetization: Initial magnetization rateof 0.6 m/H, ideal for precise magnetic control and applications.
• Stable Surface Tension: A surface tension of 32×10⁻⁵ N/cm ensures the fluid’s stability in different environments, maintaining consistency during use.

Applications

• Magnetic Drive Systems: Used in liquid bearingsand magnetic seals to provide smooth, frictionless motion in mechanical systems.
• Cooling Systems: Applied in electronic cooling fluidsfor devices requiring efficient heat dissipation, thanks to its excellent thermal conductivity.
• Medical Technology: Used in magnetic resonance imaging (MRI)contrast agents and for magnetic targeted drug delivery
• Acoustic and Vibration Control: Utilized in sound wave controland vibration damping applications to reduce noise and improve performance.
• Sensors and Actuators: Plays a key role in magnetic field sensingand precision mechanical control systems, offering high sensitivity and accuracy.
• Other Advanced Technological Fields: Extensively used in optoelectronics, precision instruments, and material sciencefor specialized applications requiring magnetic fluid properties.