CAS 7440-05-3 Pd nanopowder Ultrafine Palladium as catalyst
Size:20-30nm Purity:99.95% CAS No:7440-05-3 ENINEC No.:231-115-6 Appearance:black Powder Shape:spherical
Size:20-30nm Purity:99.95% CAS No:7440-05-3 ENINEC No.:231-115-6 Appearance:black Powder Shape:spherical
We can supply different size products of niobium silicide powder according to client's requirements. Size:1-3um; Purity:99.5%;Shape:granular CAS No:12034-80-9;ENINEC No.:234-812-3
Ni2Si particle,99.5% purity,granular shape,is used for Microelectronic integrated circuit, nickel silicide film,etc. Size:1-10um; CAS No:12059-14-2;ENINEC No.:235-033-1
In the surgical treatment of malignant melanoma, incomplete tumor resection and extensive skin defects are the main reasons for high local recurrence rates and uncontrolled wound infections, leading to poor prognosis and prolonged patient recovery time. On February 4, 2025, the journal Advanced Science reported that researchers have developed a multifunctional nano composite material microneedle patch that can simultaneously perform close range radiation therapy and photothermal therapy, providing enhanced adjuvant therapy for postoperative melanoma recurrence and infectious wound healing. In this work, researchers combined Ag2S nanodots with 32P labeled calcium phosphate (Ca32P) nanoparticles through a two-step biomineralization process to obtain Ag2S/Ca32P nanocomposites. Next, using gelatin methacrylate (GelMA) as the needle tip and hyaluronic acid (HA) as the backing layer, a microneedle patch was constructed to deliver Ag2S/Ca32P into infiltrating tumor cells and bacterial biofilms. Research has found that the prepared GM-Ag2S/Ca32P microneedle patch can effectively penetrate subcutaneous tissue and deliver Ag2S/Ca32P to the targeted site. When the microneedle patch reaches the acidic microenvironment of tumors and bacterial biofilms, the Ag2S/Ca32P nanocomposite material will decompose, releasing radioactive 32P and Ag2S nanodots. Through the synergistic effect of close range radiation therapy and photothermal therapy, the tumor cell elimination and bacterial killing effects are enhanced. In addition, local ultra-high temperature, radiation effects, and biodegradation of GelMA and HA matrices promote scar free wound healing, reduce inflammation, and promote granulation tissue formation, collagen deposition, and angiogenesis, thereby achieving scar free wound healing. Therefore, the GM-Ag2S/Ca32P microneedle patch represents a multifunctional strategy for addressing melanoma recurrence and infectious trauma, demonstrating great potential in postoperative clinical applications. SAT NANO is a best supplier of catalyst in China, we can offer Silver sulfide quantum dots liquid Ag2S for customers to do research, if you have any enquiry, please contact us at admin@satnano.com
Read MorePeptide substances have shown great potential in the field of biomaterials due to their high design flexibility, excellent biocompatibility, and degradability. Peptide based stimuli responsive biomaterials endow them with unique functions in drug delivery and biological activity regulation. On March 22, 2025, the journal Chemical Engineering Journal reported that researchers had innovatively designed a photostimulated double network hydrogel based on methacryloylated peptide nanofibers (PNFMA) with high biocompatibility, good biodegradability and multiple functions, and applied it to the regulation of photothermal therapy of tumor cells. In this work, researchers realized the controllable gel of methacrylic peptide and GelMA through photocrosslinking. Then, methacrylated peptide nanofibers (PNFMA) were used as templates to immobilize uniformly dispersed silver sulfide nanoparticles (Ag2S NPs) through electrostatic interactions. Through the strategy of "intelligent sub assembly optical control molding", we successfully constructed the photoresponsive double complex gel (GelMA/PNFMA-Ag2S). The self-assembled peptide nanofiber (PNFMA) solves the problem of low photothermal efficiency caused by aggregation and improves biocompatibility. It was found that the hydrogel showed the characteristics of rapid photo controlled gel. Under the irradiation of 365 nm ultraviolet light, the solution could be rapidly transformed into gel within 2 minutes. At the same time, ⽔ gel showed excellent photothermal stability in vitro and in vivo, with a photothermal conversion efficiency of 56.6%, and significantly killing tumor cells. Ag2S NPs driven by electrostatic forces are immobilized on PNFMA, forming a "hotspot dense" photothermal network at the synergistic nanobiological interface. The dual network structure suppresses heat loss, resulting in a tumor ablation rate of 99.9% at 2W/cm2 without off target toxicity. This photostimulated double network hydrogel not only shows great potential in tumor photothermal therapy, but also can be used in biomedical fields such as stimulation response drug release, wound dressing, etc. SAT NANO is a best supplier of catalyst in China, we can supply Silver sulfide quantum dots Ag2S for customers to do research, if you have any enquiry, please feel free to contact us at admin@satnano.com
Read MoreIn recent years, treatment strategies targeting the unique metabolic characteristics of cancer cells, such as aerobic glycolysis, have gradually received attention. Among them, hunger therapy has shown potential therapeutic value by cutting off the glucose supply to cancer cells. However, existing hunger therapy methods have problems such as poor enzyme stability and poor targeting. On April 1, 2025, the journal Small reported that researchers modified the surface of MXene using a non chemical modification strategy mediated by bovine serum albumin (BSA) to improve its water dispersibility and stability. Subsequently, the modified MXene was combined with manganese dioxide (MnO2) nanoparticles, folate (FA), and glucose oxidase (GOx) to construct a multifunctional nano delivery system (TMBFG). The system aims to achieve hunger and photothermal dual killing of cancer cells by targeted delivery of GOx to cancer cells, combined with photothermal therapy. The test results show that under 808nm near-infrared light irradiation, the temperature of TMBFG solution increases with concentration, reaching 49.5 ° C even at low concentrations. At a concentration of 0.8mg/mL, it can reach 57.8 ° C within 3 minutes, which is sufficient to kill cancer cells. The photothermal conversion efficiency of TMBF is 55.37%, demonstrating good photothermal stability and reusability. The in vitro therapeutic effect showed that TMBFG has significant targeting on HeLa cells with high expression of folate receptor (FR), and its fluorescence intensity is 1.6 times that of A549 cells. The MTT assay showed that TMBFG has low toxicity to normal and cancer cells, and can promote cell proliferation at high concentrations, with good biocompatibility. In a nude mouse tumor model, the tumor volume of the TMBFG+NIR group significantly decreased and body weight increased, indicating that the combination therapy has a significant inhibitory effect on tumor growth and has no negative impact on normal growth in mice. In this work, MXene was used as a nanocarrier, utilizing its high specific surface area and excellent photothermal conversion efficiency to not only improve the stability and targeted delivery efficiency of GOx, but also enhance the therapeutic effect through its photothermal effect. Meanwhile, the surface modification strategy of MXene effectively addresses its poor water dispersibility and susceptibility to oxidation, making the entire nano delivery system more stable and efficient. This study provides new ideas for the synergistic treatment of hunger therapy and photothermal therapy for cancer, and has important clinical application potential. Literature name: Water‐Dispersible MXene Governs Glycolysis for Cancer Synergistic Therapy SAT NANO is a best supplier of MXene powder in China, we can offer a series of MXene powder like Ti3C2, Nb2CTx, V2CTx, Mo2CTx, Ti3CN, Mo2CN, Mo2CBx, etc., if you have any enquiry, please feel free to contact us at admin@satnano.com
Read MoreMXene exhibits excellent ion electron dual conductivity mechanism and has become a promising candidate material for biological interface electrodes. However, the exposed Ti atoms on the MXene layer are prone to oxidation in air, leading to severe degradation and hindering its application in the field of bioelectronic materials. On February 16, 2025, the journal Advanced Functional Materials reported that researchers have prepared a novel MXene film (rGM) protected by reduced graphene oxide (rGO), which has high charge transfer ability and can remain stable in air. The protective layer rGO effectively shields the conductive layer MXene from air oxidation, thereby significantly improving air stability. After 40 days of air exposure (25 ° C, 40% relative humidity), the increase in membrane resistance of rGM film (135.9 ± 2.3 Ω/square-312.6 ± 4.5 Ω/square) compared to pure MXene film (145.0 ± 2.3 Ω/square-2152.8 ± 6.8 Ω/square) is almost negligible. The MXene film is protected by rGO synthesized by in-situ reduction of L-ascorbic acid, and the two are bonded together by forming Ti-O-C bonds, effectively preventing air oxidation. A built-in electric field (BIEF) is formed at the heterojunction interface, causing changes in the surface electronic structure and generating high-density electron flow, promoting charge transfer and ion diffusion. Therefore, it effectively reduces the impedance at the electrode/biological tissue interface, promotes the application of rGM as a biological interface thin film electrode, and enables high-precision acquisition of neural signals. In addition, the rGM film (approximately 60nm) can tightly adhere to the skin surface, and its ultra-thin properties make it highly wearable. Combining ultra-thin and air stability characteristics, rGM film can accurately detect normal and ventricular fibrillation electrocardiogram signals before and after stimulation, making it very suitable for application as an advanced automatic external defibrillator (AED) electrode for emergency cardiac arrest treatment. Continuous, reliable, and effective quality assurance is crucial for emergency treatment. This new type of rGO MXene composite film not only demonstrates the potential of MXene in bioelectronic materials, but also provides new ideas and solutions for the research and development of future wearable medical devices, emergency medical devices, and biosensors. Literature name: An Air‐Stable MXene Bio‐Interfacing Thin Film Electrode SAT NANO is a best supplier of MXene powder in China, we can offer a series of MXene powder like Ti3C2, Nb2CTx, V2CTx, Mo2CTx, Ti3CN, Mo2CN, Mo2CBx, etc., if you have any enquiry, please feel free to contact us at admin@satnano.com
Read MoreElectrolysis of water to produce hydrogen (HER) is the core technology for obtaining "green hydrogen", but existing precious metal catalysts (such as platinum) are expensive and difficult to apply on a large scale. Scientists are turning their attention to the two-dimensional material MXene. The currently synthesized MXenes mainly come from MAX phase precursors, and the controlled synthesis of tungsten based MXenes is extremely challenging due to the instability predicted by calculations. Therefore, finding suitable synthesis strategies to prepare efficient HER catalysts still faces many challenges. On March 28, 2025, the journal Nature Synthesis reported that researchers used theoretical calculations to guide precise etching of covalently bonded tungsten layers, obtaining atomically ordered W2TiC2Tx MXene and solving the problem of interlayer delamination. In this work, researchers predicted the etching feasibility of tungsten layers in (W, Ti) 4C4 ₋ y through DFT calculations and found that excessive aluminum doping (2Al precursor) can reduce oxygen impurities and promote selective etching. They synthesized ordered double transition metal MXene (W2TiC2Tx) by selectively etching covalently bonded tungsten layers from non MAX layered carbide (W, Ti) 4C4-y precursors using HCl LiF. Research has shown that the peeled W2TiC2Tx MXene exhibits excellent HER performance, with an overpotential of only 144mV at a current density of 10mA cm-2, far superior to existing W1.33CtX MXene. DFT shows that the hydrogen adsorption free energy (Δ Gad=-0.37eV) of the W-Ti3 coordination site on the tungsten titanium mixed surface is close to thermal neutrality and superior to that of the pure tungsten surface (Δ Gad=-1.79eV). In addition, the material has a high conductivity of 427 Scm-1 at room temperature, which conforms to the variable range hopping model (VRH), indicating that interlayer electron transport is dominant. Under 800nm femtosecond laser, the material exhibits anti saturation absorption behavior, and its high conductivity and stability make it potentially valuable in optoelectronic and laser applications. This study breaks through the traditional synthesis paradigm of MXene and provides new ideas for constructing efficient HER catalysts and novel 2D materials. Literature name: Synthesis of a 2D tungsten MXene for electrocatalysis。 SAT NANO is a best supplier of MXene powder in China, we can offer a series of MXene powder like Ti3C2, Nb2CTx, V2CTx, Mo2CTx, Ti3CN, Mo2CN, Mo2CBx, etc., if you have any enquiry, please feel free to contact us at admin@satnano.com
Read MoreThe powder metallurgy industry, as an important component of the new materials field, plays a crucial role in promoting the transformation and upgrading of China's manufacturing industry. Powder metallurgy technology, due to its unique process advantages, optimizes material properties to meet the diverse needs of various complex working conditions and meet the diverse demands of different customers. In the field of automobile manufacturing, powder metallurgy high-precision component products not only effectively reduce the weight of the entire vehicle, but also optimize the power transmission of the car, improve the safety of the braking system, and effectively promote the development of the automotive industry towards higher performance. The application fields are becoming increasingly wide, and the development potential is very strong. In the aerospace field, high-strength and high-temperature resistant powder metallurgy products are indispensable, providing strong guarantees for the safe operation of aircraft. In addition, powder metallurgy products have varying degrees of applications in household appliances, machinery manufacturing, electronic information, aerospace, biomedicine, and other fields, playing an important role in promoting and supporting the development of the entire advanced manufacturing market. So, how can we help powder metallurgy enterprises move towards higher levels? Perhaps this exhibition can give you the answer! As the flagship exhibition of the global powder metallurgy industry, PM CHINA has been committed to building a high-quality platform for brand promotion and market expansion for enterprises for 17 years, providing important opportunities for their development. The exhibition scale is second to none! For powder metallurgy enterprises, participating in the world's largest industry flagship exhibition allows them to have in-depth exchanges with tens of thousands of industry professionals from around the world and across the country, accurately grasp customer needs, gain insights into industry trends, expand cooperation channels in multiple ways, and effectively enhance brand influence! The 17th Grand Ceremony will be held grandly at the Shanghai World Expo Exhibition and Convention Center from March 10-12, 2025! At that time, a variety of high-precision components and innovative solutions from the powder metallurgy industry will be showcased. SAT NANO welcomes customers from all over the world to visit us. We can provide metal powders required for powder metallurgy, such as copper powder, nickel powder, tungsten powder, and other products. We warmly welcome you to send your enquiry at admin@satnano.com
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