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
Carbon nanotubes powder, as one of the strongest structural materials in theory, can achieve mechanical properties of hundreds of GPa level strength and TPa level modulus per single strand. However, the realization of such outstanding performance in macroscopic materials always faces the "scale paradox": the strength of macroscopic carbon nanotube fibers or structural components is much lower than the theoretical value of a single CNT, because the nanotubes that make up these structures generally have insufficient length, uneven arrangement, and structural defects, and the connection method often relies on weak shear forces. Although various strategies have been attempted to enhance connections through covalent bonding repair or energy beam welding, they all face bottlenecks such as structural damage, high costs, or complex operations that are difficult to engineer. Recently, Professor Wei Fei's team from Tsinghua University jointly proposed and experimentally verified a Van der Waals welding method based on TiO ₂ nanoparticles, which achieved almost non-destructive macroscopic CNT welding at normal pressure and room temperature for the first time. The joint strength is close to the theoretical limit of a single CNT, marking another key breakthrough in the "transition from experimental to engineering" of carbon nanomaterials. This technology is based on the Fast Chemical Vapor Deposition Self Assembly (FCVDS) process, which can accurately deposit nano-sized TiO ₂ particles onto the overlapping area of CNT bundles in just a few seconds, serving as a "nano brazing material". Unlike traditional welding that relies on atomic diffusion or high-temperature covalent reconstruction, this method purely relies on van der Waals forces and interface friction to achieve connection, thus avoiding damage to the tube wall structure caused by high-energy beam irradiation or excited state generation. More importantly, by designing deposition parameters and particle size distribution reasonably, effective welding can be achieved with only about 1 wt% of "brazing material", maximizing the preservation of CNT's original low-density advantage. This lightweight welding method provides a practical and feasible engineering implementation path for carbon nanotubes in fields such as aerospace, military, and flexible structural materials that are extremely sensitive to comparative strength in the future. This study not only proposes a new CNT welding technology that combines strength preservation, structural integrity, weight control, and operational feasibility, but also comprehensively demonstrates the strategy from mechanical mechanisms, parameter models, to engineering experiments. While achieving non-destructive amplification of the mechanical properties of carbon nanotubes, it provides key technical support for applications such as high-strength fiber materials, flexible devices, and extreme structural components. In the future, if this method can be linked with indus...
Read MoreThe 14th Shenzhen International Thermal and Heat Dissipation Materials and Equipment Exhibition (CIME2025) will be held from June 4-6, 2025 at the Shenzhen International Convention and Exhibition Center. The exhibition area is 20000 square meters, with 500 exhibitors, 30 academic presentations, and 30000 professional visitors. The CIME International Thermal Insulation and Heat Dissipation Exhibition, founded in Shenzhen in 2013, has undergone more than ten years of development and resource accumulation, and has become a well-known and authoritative industry event in the field of thermal management thermal insulation and heat dissipation. It has now developed into the June Shenzhen Exhibition and the December Shanghai Exhibition, touring the two places and deeply discussing the changes and development of thermal management thermal insulation and heat dissipation with local governments, industry associations, industrial parks, partners, and industry elites, and has received warm responses. As an industry event, CIME Exhibition looks forward to everyone joining hands with CIME Exhibition to continue moving forward together, creating brilliance and providing customers with higher quality, more professional, and more comprehensive one-stop solutions. With the advancement of consumer electronics, 5G, and artificial intelligence XR、 Against the backdrop of continuous technological penetration and upgrading in fields such as data centers, the Internet of Things, power batteries, energy storage, and Industry 4.0, the miniaturization and continuous increase in power density of electronic devices have led to rapid accumulation of heat energy, weakened safety, and shortened service life. With the continuous advancement of technology, the demand for thermal management, heat conduction, and heat dissipation is also constantly increasing, and the market size is growing exponentially. This has brought enormous potential and commercial cooperation space to the thermal management, heat conduction, and heat dissipation industry. In order to further promote communication and interaction in the thermal conductivity and heat dissipation industry, strengthen the awareness of communication and cooperation in China's thermal conductivity and heat dissipation industry, and achieve mutual promotion and common development, the 14th Shenzhen International Thermal Conductivity and Heat Dissipation Materials Exhibition and Development Summit Forum, hosted by Bohan Exhibition&Liyue Exhibition, will be held from June 4th to 6th, 2025 at the Shenzhen International Convention and Exhibition Center (Bao'an New Hall). The conference aims to establish a communication platform for technical exchange and information exchange in the field of thermal conductive materials, promoting breakthroughs in technology and industrial development in the thermal conductive materials industry. The conference warmly welcomes experts, scholars, researchers, and business representatives from relevan...
Read MoreDuring the healing process of infectious wounds, bacterial infection, persistent oxidative stress, and long-term inflammation are the main obstacles. Developing a multifunctional wound dressing that can effectively eliminate bacteria, reduce oxidative stress, alleviate inflammation, and regulate the immune microenvironment has important clinical significance. On March 8, 2025, the Chemical Engineering Journal reported that researchers have developed a compound containing epigallocatechin gallate (EGCG) and Ag2S@MoS2 The injectable multifunctional hydrogel of nano tablet has excellent anti-inflammatory, antioxidant and synergistically enhanced antibacterial ability, which can promote the healing of infected wounds by regulating the polarization of macrophages. In this work, researchers grafted EGCG onto sodium alginate oxide (OAlg) through a phenolic condensation reaction to obtain a sodium alginate EGCG complex (OAE), and then Ag2S@MoS2 Nanosheets were introduced into the hydrogel of OAE and carboxymethyl chitosan (CMCS) to form a multifunctional hydrogel with photothermal effect (NSOAEC gel). The NSOAEC gel showed good photothermal activity under near-infrared radiation. The free radical scavenging experiment proved that OAE could effectively scavenge superoxide anion (O2-), ABTS and DPPH free radicals, showing excellent antioxidant performance. Further in vitro studies showed that NSOAEC gel could effectively alleviate oxidative stress in cells, reduce the expression of inflammatory factors and enhance the expression of anti-inflammatory factors, and promote the polarization of macrophages from M1 to M2. due to Ag2S@MoS2 Nanosheets have excellent photo thermal conversion efficiency, which makes NSOAEC gel show synergistic antibacterial effect under NIR irradiation, and can effectively kill Escherichia coli and Staphylococcus aureus. In this study, a multifunctional NSOAEC gel was prepared by combining bioactive molecules with the photothermal effect, which synergistically enhanced the antibacterial and immunomodulatory abilities, providing a new therapeutic strategy for the treatment of bacterial infected wounds. 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 MoreIn 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
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