Metal Nanoparticles
-
Metal Nanoparticles Related Products (48)
Related Products (48)
-
GSH-Au nanoclusters
0 ImagesCat. No.: HY-184602Gold nanoclusters (AuNCs) are molecular-level aggregates consisting of a core of several to dozens of gold atoms, protected by organic monomers such as thiol compounds or proteins. GSH-AuNCs utilize glutathione (a thiol-containing tripeptide) as both a reducing agent and a protecting group, reacting chemically with gold atoms to form nanoclusters, representing a transitional state between metal atoms and metal nanoparticles. Due to size effects and the emergence of quantized energy levels, GSH-AuNCs possess unique optical properties, such as tunable fluorescence emission spectra. Their fluorescence emission wavelength can be tuned with variations in particle size and composition.
-
Citrate-modified ferric oxide nanoparticles
0 ImagesCat. No.: HY-184647Citrate-modified ferric oxide nanoparticles are functionalized nanoparticles formed by attaching citric acid to the surface of Fe3O4 nanoparticles. Due to their excellent biocompatibility and stability, Citrate-modified ferric oxide nanoparticles can be used as drug carriers for drug delivery and contrast enhancement in magnetic resonance imaging (MRI).
-
Hollow mesoporous copper sulfide nanoparticles powder
0 ImagesCat. No.: HY-184609Hollow mesoporous copper sulfide nanoparticles are nanomaterials with unique structures and properties. Their hollow mesoporous structure enables the encapsulation of small molecules, facilitating in vivo delivery, while their surface can be functionalized for further modification. Due to their excellent properties, hollow mesoporous copper sulfide nanoparticles are widely used in fields such as magnetic resonance imaging, biosensoring, and nanoprobe construction.
-
Pd nanoparticles
0 ImagesCat. No.: HY-184617Due to their unique physical and chemical properties, noble metal nanoparticles, represented by platinum, gold, silver, and palladium, have been extensively studied by many scientists. Palladium is a noble metal belonging to the platinum group elements. Its elemental form is a silvery-white transition metal, soft in texture and possessing good ductility and malleability. Palladium nanoparticles, due to their unique physical, chemical, and electronic properties, have shown remarkable application potential in multiple fields. The preparation methods for palladium nanoparticles mainly include chemical reduction and physical reduction methods. Chemical reduction generally involves adding a reducing agent to reduce palladium ions to elemental palladium. Common reducing agents used include sodium citrate, sodium borohydride, and hydrogen gas. Because the chemical reduction process is relatively fast, protective agents such as polyvinylpyrrolidone (PVP) are generally added to prevent palladium particles from agglomerating.
-
PEG modified Mn-Zn Ferrite Nanoparticles (amino terminal)
0 ImagesCat. No.: HY-184645PEGylated magnetic manganese-zinc ferrite nanocrystals (amino-terminated) are made by modifying manganese-zinc ferrite with PEG amino groups. PEG is a polymer with good water solubility and biocompatibility. By coating the surface of magnetic nanocrystals with PEG molecules, their water solubility, stability, and biocompatibility can be improved. PEGylation can also reduce non-specific interactions between nanocrystals and organisms, reduce toxicity, and prolong their circulation time in vivo. Furthermore, PEGylated magnetic manganese-zinc ferrite nanocrystals can be further functionalized, such as by attaching targeting groups or drug molecules, to achieve more precise diagnosis and treatment.
-
PEI stabilized gold nanoclusters
0 ImagesCat. No.: HY-184606PEI stabilized gold nanoclusters (PEI-Au NCs) are nanomaterials combining gold nanoclusters and polyethyleneimine. They consist of a few to dozens of gold atoms forming the core of the gold nanoclusters, while polyethyleneimine (PEI), a positively charged hyperbranched polyamine, is selected as the end-capping agent, encapsulating the surface of the gold nanoclusters. PEI-Au NCs have gained widespread application due to their high luminescence properties and stability over a wide pH range. Furthermore, their good biocompatibility and ease of surface modification or functionalization make them attractive for many biomedical applications.
-
Fe3O4 nanoparticle
0 ImagesCat. No.: HY-184620Ferric oxide (Fe3O4) is widely used in magnetic resonance imaging (MRI), magnetic separation, targeted drug delivery, tumor hyperthermia, cell labeling and separation, and as a contrast agent and enhancement agent in retinal detachment repair surgery due to its stable material properties, good biocompatibility, high strength, and lack of toxic side effects. It is also used as a catalyst carrier, microwave absorbing material, and magnetic recording material. Xianfeng has developed numerous derivatives of ferric oxide, including oleic acid-modified ferric oxide, PEG-terminated ferric oxide, DMSA-modified ferric oxide, polylysine-modified ferric oxide, carboxylated dextran-modified ferric oxide nanoparticles, streptavidin-modified ferric oxide particles, thiol-modified ferric oxide magnetic nanoparticles, and polyethyleneimine (PEI)-modified magnetic ferric oxide nanoparticles, among others. This wide range of modifications provides numerous options for subsequent experiments.
-
APTS Fe2O3 Nanoparticles
0 ImagesCat. No.: HY-184638APTS Fe2O3 Nanoparticles (Aminated ferric oxide magnetic nanoparticles) are magnetic nanomaterials modified with amino functional groups using APTS. This material consists of a ferric oxide (Fe3O4) nanoparticle core and an amino (-NH2) surface modification layer. The aminated surface helps improve the biocompatibility of the nanoparticles and reduce cytotoxicity. The amino functional groups can be further chemically modified for coupling with biomolecules such as drugs, proteins, and nucleic acids. The amino functional groups undergo protonation at different pH values, resulting in different surface charges on the nanoparticles in different pH environments.
-
Au Nanoparticles
0 ImagesCat. No.: HY-184648Gold nanoparticles, also known as gold nanoparticle colloids, are colloidal systems formed by dispersing gold nanoparticles in a solution. Common methods for preparing gold nanoparticle colloids include the sodium citrate reduction of chloroauric acid method, also called the seed growth method or electrochemical synthesis method. The color of gold nanoparticle colloids changes with the size of the gold nanoparticles. Generally, the larger the diameter of the gold nanoparticles, the more the wavelength of light absorbed by the solution shifts towards longer wavelengths, and the particles will exhibit the complementary color of the absorbed light.
-
PEI modified Pd nanoparticles
0 ImagesCat. No.: HY-184619Due to their unique physical and chemical properties, noble metal nanoparticles, represented by platinum, gold, silver, and palladium, have been extensively studied by many scientists. Palladium is a noble metal belonging to the platinum group elements. Its elemental form is a silvery-white transition metal, soft in texture and possessing good ductility and malleability. Palladium nanoparticles, due to their unique physical, chemical, and electronic properties, have shown remarkable application potential in multiple fields. PEI surface modification of palladium nanoparticles can significantly improve their dispersibility, stability, and biocompatibility, and facilitate further coupling with other biomolecules or fluorescent molecules.
-
Glycyrrhetinic acid micelles
0 ImagesCat. No.: HY-184601Glycyrrhizic acid (GA) is a saponin derived from the root of the traditional Chinese medicine licorice. It possesses various pharmacological effects, such as anti-inflammatory, antioxidant, immunomodulatory, and antiviral activity. In addition to its own pharmacological activity, GA can form complexes with many drugs and other natural products. Structurally, glycyrrhizic acid is an amphiphilic molecule; its hydrophilic portion consists of glucuronic acid residues, while its hydrophobic portion is composed of glycyrrhizic acid residues. It can aggregate in water to form self-assembled micelles. Glycyrrhizic acid encapsulates hydrophobic drugs through self-assembly into host-guest complexes, thereby increasing drug solubility and inhibiting precipitation. These complexes can also achieve sustained and controlled release of encapsulated drugs. Therefore, glycyrrhizic acid micelles can serve as drug carriers to improve the absorption of hydrophobic drugs.
-
Selenium nanoparticles
0 ImagesCat. No.: HY-184610Selenium is an essential trace element for the human body, playing a vital role in various physiological activities and significantly impacting human health. Selenium deficiency can lead to a variety of diseases, while excessive amounts may be toxic. In recent years, selenium nanoparticles (SeNPs) have attracted increasing attention due to their excellent biocompatibility, low toxicity, and high antioxidant activity, making them suitable for a wide range of applications. Particularly in the fields of biomedicine, nutritional supplementation, food preservation, and environmental remediation, selenium nanoparticles hold immense application potential.
-
Chitosan stabilized selenium nanoparticles
0 ImagesCat. No.: HY-184611Selenium (Se) is an essential trace element for the human body, playing a vital role in various physiological activities. In the body, selenium is bound to selenocysteine, an amino acid used to synthesize several selenoproteins. Selenium is often the active site of these proteins, playing a crucial role in maintaining intracellular redox balance. Chitosan-stabilized selenium nanoparticles (CS-SeNPs) are nanomaterials using the biopolymer chitosan (CS) as a stabilizer. Through electrostatic interactions, chitosan coats the surface of selenium nanoparticles (Se NPs), improving their dispersibility, stability, and biocompatibility. Se NPs themselves are characterized by low toxicity and high bioactivity, and the introduction of chitosan further enhances their functionality and application potential, making them widely recognized in biomedicine, food, and agriculture.
-
PEG modified Mn-Zn Ferrite Nanoparticles (methoxyl group terminal)
0 ImagesCat. No.: HY-184644PEGylated magnetic manganese-zinc ferrite nanocrystals (methoxy-terminated) are made by modifying manganese-zinc ferrite with PEG methoxy groups. PEG is a polymer with good water solubility and biocompatibility. By coating the surface of magnetic nanocrystals with PEG molecules, their water solubility, stability, and biocompatibility can be improved. PEGylation can also reduce non-specific interactions between nanocrystals and organisms, reduce toxicity, and prolong their circulation time in vivo. Furthermore, PEGylated magnetic manganese-zinc ferrite nanocrystals can be further functionalized, such as by attaching targeting groups or drug molecules, to achieve more precise diagnosis and treatment.
-
DMSA coated Fe3O4 nanoparticles (High-temperature Pyrolysis Method)
0 ImagesCat. No.: HY-184624Carboxylated iron oxide nanoparticles (high-temperature pyrolysis method) are obtained by modifying DMSA on the basis of XFJ67 to obtain carboxyl groups, which converts oil-soluble nanoparticles into water-soluble nanoparticles, making them more suitable for applications in the biological field.
-
PEG2000 Fe3O4 Animo end
0 ImagesCat. No.: HY-184621PEGylated iron oxide nanoparticles (amino-terminated) are prepared by high-temperature pyrolysis and modified with PEG-amino-terminated oleic acid-modified iron oxide. This modification transforms the nanoparticles from the oil phase to the aqueous phase, thereby broadening their application in the biological field.
-
Copper nanoclusters
0 ImagesCat. No.: HY-184605Metal nanoclusters, containing anywhere from a few to hundreds of atoms, bridge the gap between nanoparticles and molecular compounds, typically exhibiting molecular-like electrical and optical properties. Furthermore, metal nanoclusters possess advantages such as significant Stokes scattering and size- and ligand-dependent fluorescence characteristics, making them an emerging class of materials for constructing fluorescence platforms. Current research primarily focuses on the synthesis and application of noble metal nanoclusters like gold and silver. However, copper, belonging to the same group as gold and silver in the periodic table, is inexpensive, environmentally friendly, readily available, has a simple preparation process, and low toxicity, making it widely applicable in industry. In addition, copper nanoclusters exhibit better photostability than organic dyes and better environmental friendliness than semiconductor quantum dots, making them suitable for trace detection.
-
Pegylated ultrafine Fe3O4 nanoparticles (High-temperature Pyrolysis Method)
0 ImagesCat. No.: HY-184628PEGylated ultrasmall iron oxide nanoparticles (high-temperature pyrolysis method) are magnetic nanomaterials synthesized by high-temperature pyrolysis. These nanoparticles typically have a diameter of less than 10 nanometers (<10 nm), and the size observed by TEM is usually in the range of 5-10 nm.
