Monthly Archives: November 2015

Aluminium Nanoparticles For Solar Cell

Aluminium Nanoparticles

Aluminium Nanoparticles For Solar Cell

Aluminium Nanoparticles Improved thermoelectric properties of Aluminum Zinc Oxide (AZO) thin films deposited by radio frequency (RF) and pulsed Direct Current (DC) magnetron sputtering at room temperature are reported. In both techniques films were deposited using sintered and non-sintered targets produced from nano-powders. It is confirmed that both the Al doping concentration and film thickness control the thermoelectric, optical and structural properties of these films.

Aluminium Nanoparticles

Aluminium Nanoparticles

 

SOLAR CELL SENSOR
Delafossite CuAlO2 belongs to a family of transparent conducting oxides (TCOs) – oxides with low electrical resistivity and high visual light transparency – that show promise in multiple applications including: liquid crystal displays, touch screens, gas sensors, thermoelectric devices, solar cells, dilute magnetic semiconductors, light-emitting diodes, etc. CuAlO2 nanoparticles have also been used as thermo-catalysts in the thermal photo-catalytic reactions for the evolution of hydrogen gas from water splitting. p–n junction photovoltaic using CuAlO2 and In2O3, respectively, would allow visible light to pass through the cell while producing electricity via the absorption of ultraviolet radiation.

Aluminium Nanoparticles  has a layered crystal structure with Cu atoms between AlO2 layers forming O–Cu–O pillars CuAlO2 has indirect and direct band gaps of 1.2 and 3.6 eV respectively, high transparency (80%) in the visible region, and high light-to-electricity conversion efficiencies in solar cells . Photocurrents ranging from 0.02 mA/cm2 to 0.08 mA/cm2 have been observed when CuAlO2 nanoparticles (300 nm) were used as the photocathode materials in p-type DSSCs, while delafossite CuGaO2 nanoplates produced comparatively high photocurrents (0.384 mA/cm2) in the region of visible light using polypyridyl Co3+/2+(dtb-bpy) as the electrolyte and the organic P1 dye Higher cathodic photocurrents (Jsc = 0.954 mA/cm2 under AM1.5 sun) were observed in p-type dye sensitized solar cells (DSSCs) fabricated using these CuAlO2 nanoparticles compared to the previous reports on delafossite CuBO2 (B = Al, Ga) nanoparticles. Enhanced current efficiency in these solar cells is attributed to the nano-sized particles and narrow particle size distributions of nanocrystalline delafossite CuAlO2.

Aluminium Nanoparticles  thermoelectric properties of Aluminum Zinc Oxide (AZO) thin films deposited by radio frequency(RF) and pulsed Direct Current (DC) magnetron sputtering at room temperature are reported. In bothtechniques films were deposited using sintered and non sintered targets produced from nano-powders. It is confirmed that both the Al doping concentration and film thickness control the thermoelectric, optical and structural properties of these films. An efficient application of thermoelectric (TE) materials in devices requires materials with high Seebeck coefficients (S ¼DV/DT), low thermal conductivity (k), and low resistivity (r) to attain a large gure of merit (ZT ¼ S2T/kr). By nanostructuring materials the ZT value has improved to over 1 at 300 K, taking Bi2Te2/Sb2Te2 superlattices (ZT > 2) and n-type PbSeTe (ZT ¼ 1.5) materials as examples.

TE applications it has mainly been explored with bulk dimensions and with different dopants: Zn1_xMxO, AZO if M ¼ Al and GZO if M ¼ Ga,5 Zn1_(x+y)GaxInyO (x + y ¼ 0.007)6 or ZnAlO/In– ZnAlO quantum well multilayers. Although this power output power is small for most applications, it is already comparable to full devices comprising 100 thin lm thermocouples of Sb2Te3/Bi2Te3, also with planar geometry, which for DT ¼ 20 K have a maximum power output of 7 nW.35 By connecting this n-type thermoelectric element with a compatible p-type element, such as Cr : V2O5 20 and using an appropriate combination of series and parallel interconnections between the TE elements it will be possible to design devices with higher output powers to meet the needs of low power TE module applications.

Enhanced Ionic Liquids (NEILs) for Concentrated Solar Power (CSP)

Aluminium Nanoparticles Enhanced Ionic Liquids (NEILs) were synthesized by dispersing aluminum oxide(Al2O3) Nanoparticles in 1-butyl-3-methylimidazolium bis {(trifluoromethyl) sulfonyl}imide, ([C4mim] [NTf2]) ionic liquids (ILs). Concentrated Solar Power (CSP) is one of the developing alternative energy technology, where mirrors or lenses are used to concentrate sunlight from a large area and are stored in a collector filled with heat transfer fluid (HTF). Later on the energy of those HTF is used to produce steam for power generation. Commonly used HTF such as Therminol VP-1 (eutectic mixture of biphenyl and diphenyl oxide), thermal oil, and molten salt have low decomposition temperature and high melting point, which are affecting the energy storage capacity and reducing the overall system efficiency, resulting in an increase of the operating cost. Therefore, there is an acute need for the new energy-efficient HTFIonic liquids (ILs) are a class of molten salt, which has melting point below 100 _C, high thermal stability, and negligible vapour pressure.

Aluminium Nanoparticles

These properties make them as a potential candidate for CSP applications over the currently used HTF addition, nanofluids, which are defined as dispersion of metallic (Cu, Ag, and Au) or non-metallic (Al2O3, CuO, TiO2) particles with one dimension less than 100 nmM in a base liquid, have great attraction due to their enhanced thermophysical properties and enhanced ththeir potential applicability as cooling media for high heat generating Melectronic device, nuclear plant, automobile industry. These enhanced heat transfer properties of nanofluids encourage the researchers to combine these two (nanoparticles and ionic liquids) growing interests, forming the Nanoparticle Enhanced Ionic Liquids (NEILs) by dispersing small amounts of nanoparticles into base ILs. The practical applications of NEILs are as heat transfer fluids; and can be used for heat exchange in chemical plants, absorption cooling cycle systems, and solar thermal power generationermal performance.

Aluminium Nanoparticles

Aluminium Nanoparticles

Contact Us for Highly Pure Aluminum Nanoparticles For Solar Cells 

From us, you can easily purchase Aluminium Nanoparticles at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at sales@nanoshel.com Contact: +1 302 268 6163 (US and Europe), Contact: +91-9779550077 (India). We invite you to contact us for further information about our company and our capabilities. At Nanoshel, we could be glad to be of service to you. We look forward to your suggestions and feedback.

Thermal explosion Al system

Thermal explosion Al system

Thermal explosion Al system Using Aluminium Nanoparticles

Thermal explosion  Al system (Al NPs) have been found huge potential as reactive additives to highly increase energy density in various energetic systems such as propellants, explosives and pyrotechnics.
Aluminum has been an active ingredient in energetic material formulation because of high energy density and low cost availability. Aluminum Nanoparticles are receiving considerable interest lately as a possible approach to enhance the energy release rate from the energetic materials.

Thermal explosion Al system

Thermal explosion Al system

 

Thermal explosion  Al system as energetic materials have received much recent attention for a variety of existing and/or potential applications. Among more extensively investigated are nanosized (sub-100 nm) aluminum (Al) particles. Their large specific surface area and energy density, when coupled or mixed with oxidative species, make them unique combustible additives in propellant formulations. Nanoscale Al particles are also studied as high-capacity hydrogen storage materials. Therefore, significant effort has been made on the development of synthetic methodologies for Al nanoparticles of desired properties.

Nano-aluminum as energetic material for rocket propellants: Thermal explosion  Al system
Modern solid rocket propellants for aerospace applications commonly contain aluminum powder as a fuel, because of its high energy release in the oxidation process to alumina. The oxidation agent is an inorganic salt as ammonium Perchlorate (AP), embedded into an organic binder a polymeric matrix as hydroxyl-terminated polybutadiene (HTPB). First gener-ation of aluminum powders is coated by a very thin layer of alumina.Great attention is focused today on ultra-fine (nanometric) Al particles, because of the significant increase of propellant burning rate and of the lower ignition time and temperature.From this observation started the interest in characterizing the chemico-physical properties of pure Al powders..

Thermal explosion Al system: Energetic materials have been widely used for military purposes.Continuous research programs are performing in the world for thedevelopment of the new materials with higher and improved performance comparing with the available ones in order to fulfill the needs of the military in future. Different sizes of aluminum powders are employed toproduce composite rocket propellants. aluminum as an energetic material and the propertiesand characteristics pertaining to its combustion. Nano-sized aluminum asone of the most attractable particles in propellants is discussed particularly.
Energetic mixtures usually have a higher energy density than explosive materials with both components in a single molecule. However, mixtures generally release the energy more slowly because the reaction partners have to find each other. Nanoenergetics researchers are attempting to achieve faster and more intensive mixing of the fuel and oxidizing agents by drastically reducing the scale of the distances involved. In most nanoenergetic formulations, nanoaluminum (aluminum nanoparticles) is used as the fuel and metal oxides as the oxidizing agents.

Thermal explosion Al system (TBE) to that of a high explosive (HE). A high explosive (HE) and thermo-baric explosive (TBE) are detonated at time to, creating respective pressure pulses. The peak overpressure (PHE) of the initial pressure pulse of the high explosive is much greater than the corresponding peak overpressure (PTBE) of the initial pressure pulse of the thermo baric explosive. However, the initial pressure pulse generated by a high explosive is typically much shorter in duration than the corresponding pressure pulse of a thermo baric explosive (TBE). The overpressure generated by the high explosive drops at a much faster rate, passing below ambient pressure at time tHE. In contrast, although the thermo-baric explosive has a lower initial peak overpressure PTBE in, the initial pressure pulse of the thermo-baric explosive continues in duration until tTBE. As a consequence of the extended duration of the thermo-baric explosive initial pressure pulse, the total impulse generated by the thermo-baric explosive (represented graphically by the area between the TBE curve and ambient pressure between times t0-tTBE) is greater than the total impulse of the high explosive.

Military Use:
used in military Thermal explosion Al system to increase reaction temperature, blast and incendiary effects. werful bombs that use nanometals such as nanoaluminum to create ultra-high burn rate chemical explosives an order of magnitude more powerful than conventional bombs. Nanothermiteor “super-thermite” is one example of such a “Metastable Intermolecular Composite” (MIC.) Nanoweapons are any military technology that exploits the power of nanotechnology in the modern battlefield. The creation of much smaller nuclear bombs adds new challenges to the effort to limit weapons of mass destruction.” “[The bombs] could blow open everything that is in place for arms control,”

Thermal explosion Al system

Thermal explosion Al system

Contact Us for Highly Pure Thermal explosion Al system 

From us, you can easily purchase Aluminium Nanoparticles at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at sales@nanoshel.com Contact: +1 302 268 6163 (US and Europe), Contact: +91-9779550077 (India). We invite you to contact us for further information about our company and our capabilities. At Nanoshel, we could be glad to be of service to you. We look forward to your suggestions and feedback.

Silver Nanoparticles Medicine

Silver Nanoparticles Medicine

Silver Nanoparticles Medicine  are of interest because of the unique properties (Ag, 99%, 1-100nm and shape depending optical, electrical, and magnetic properties) which can be incorporated into antimicrobial applications, biosensor materials, Cryogenic superconducting materials. Several physical and chemical methods have been used for synthesizing and stabilizing silver Nanoparticles importance in a number of areas such as health care, environmental health, biomedical sciences, drug-gene delivery applications.

Silver Nanoparticles Medicine

Silver Nanoparticles Medicine

The major application of silver Nanoparticles in the medical field include diagnostic application and therapeutic applications. In most of the therapeutic application, it is the antimicrobial property that is being majorly explored, though the anti-inflammatory property has its fair share of application. Silver nanoparticales use is widely used in range of biomedical application including diagnosis, treatment drug delivery, medical device coating and for personal heath. Their application can be broadly divided into diagnostic and therapeutic uses.

Diagnostic: Early diagnosis to any disease condition is vital to ensure that early treatment is started and perhaps resulting in a better chance of cure. This is particularly true for cancer. Lin et al reported silver nanoparticle based Surface-enhanced Raman spectroscopy (SERS) in non-invasive cancer detection. This approach is highly promising and may prove to be an indispensable tool for the future.

Therapeutics: Application of Silver Nanoparticles in Medicine is in wound healing. Compared with other silver compounds, many studies have demonstrated the superior efficacy of Ag NPs in healing time, as well as achieving better cosmetic after healing. Here, it was shown that in wounds treated with Ag NPs, there was better collagen alignment after healing when compared to controls, which resulted in better mechanical strength.

Oncology: Human epidermis cancer cell line was targeted with floated silver-dendrite composite nanodevices and the labeled cancer cells were subsequently destroyed by the microbubbles generated through increased uptake of laser light energy by Ag Nps.

Silver bullet: Silver bullet is the understanding and treatment of mental illness. The neural cell replacement for spinal cord injury is possible. Spinal cord research is so complex. It will come from a combination of discoveries and therapies that deal with neural regeneration, reconnection across the injured area, and functional recovery.

Surgical mesh: For general surgery, surgical implants are often unavoidable. Surgical meshes are commonly used for bridging large wounds, as well as acting as reinforcements to tissue repair. However, being foreign material, they do carry a risk of infection. Indeed, it has been estimated that one million nocosomial infections are seen each year in patients with implanted prosthetic materials. The use of silver nanoparticles polypropylene mesh has been studied recently. Similar to other studies using silver nanoparticles, the results showed that silver nanoparticles polypropylene mesh had significant bactericidal efficacy against S. aureus. Furthermore, it was shown that silver nanoparticles could continue to diffuse off the mesh and had sustained activity. These results clearly warrant further in vivo studies to determine whether silver nanoparticles-coated polypropylene mesh can decrease the prosthetic infection rate and the host inflammatory response in the clinical setting.

Silver in orthopaedics: Artificial joint replacements have become the gold standard treatment for many arthritic diseases. Like all biomaterials, bone cement based on polymethylmetacrylate (PMMA) has an elevated risk of infection when implanted into the human body.82 Indeed, an increasing number of joint infections with multi-resistant bacteria mean that an adequate prophylaxis against these organisms is necessary. Recent studies have been carried out to evaluate bone cement loaded with nanosilver. Here, nanosilver-loaded bone cement could be shown to have high antibacterial activity against all tested strains including methicillin-resistant Staphylococcus aureus (MRSA). Furthermore, the nanoparticles did not seem to have cytotoxicity to osteoblasts grown in vitro. As well as bone cement, the use of silver nanoparticles has been studied in artificial joints. it would appear that silver nanoparticles could play a significant role in the next generation of biomaterials in orthopaedics.

Silver Nanoparticles Medicine: Silver-impregnated catheters

Central venous catheters: A new generation of silver-impregnated catheters based on the use of an inorganic silver powder, on which silver ions are bonded with an inert ceramic zeolite, has become available for clinical use. In a recent study comparing these silver-impregnated catheters with standard catheters in terms of incidence of catheter-related blood stream infections, it was shown that overall colonization rate was significantly lower in the silver-impregnated CVC tips. In addition, tip colonization by coagulase-negative staphylococci in the silver-impregnated CVC was lower. It would therefore appear that silver-impregnated catheters are destined for increasing use. Vascular prosthesis. For vascular surgeons, much research in vascular surgery has focused on the development of infection-resistant prosthetic grafts over the years. Recently, the use of the InterGard Silver bifurcated polyester graft coated with collagen and silver. It would therefore appear that silver-impregnated catheters are destined for increasing use.

Ventricular drainage catheters: Insertion of temporary external ventricular drainage (EVD) is a commonly used procedure in intensive care patients for the management of acute occlusive hydrocephalus. However, an important complication of external cerebrospinal fluid (CSF) drainage is bacterial colonization of the catheter, resulting in ventriculomeningitis and encephalitis. The availability of silver-impregnated ventricular catheters since 2004 resulted in a pilot study addressing their clinical efficacy in neurological and neurosurgical patients requiring external CSF drainage. The authors found that CSF cultures performed at least three times a week yielded 25% more positive cultures in the control group compared to 0% in the treatment group using silver catheters. Furthermore, aseptic meningitis due to inflammation was not seen in patients.

Wound dressing: Wound healing is regarded as a complex and multiple-step process involving integration of activities of different tissues and cell lineages. Perhaps the most well documented and commonly used application of silver nanoparticles for this is in the use of wound dressings. In this regard, Acticoat, which is the first commercial dressing made up of two layers of polyamide ester membranes covered with nanocrystalline silver ions, has been studied extensively. Acticoat has been shown to have the lowest MIC and MBC values, and the fastest Kill kinetics against the five bacteria tested in in vitro studies. with the silver-impregnated biomedical material. Patients having comparable burn wound size, depth and location, the wounds were either treated with silver nanoparticles dressing or a gauze soaked in 0.5% silver nitrate solution.

Silver Nanoparticles Medicine: Nanosilver particles are generally smaller than 100 nm and contain 20–15,000 silver atoms. At nanoscale, silver exhibits remarkably unusual physical, chemical and biological properties. Due to its strong antibacterial activity, nanosilver coatings are used on various textiles but as well as coatings on certain implants. Further, nanosilver is used for treatment of wounds and burns or as a contraceptive and marketed as a water disinfectant and room spray. Thus, use of nanosilver is becoming more and more widespread in medicine and related applications and due to increasing exposure toxicological and environmental issues need to be raised. In sharp contrast to the attention paid to new applications of nanosilver, few studies provide only scant insights into the interaction of nanosilver particle with the human body after entering via different portals.

Contact Us for Highly Pure Silver Nanoparticles in Medicine 

From us, you can easily purchase Silver Nanoparticles Medicine   at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at sales@nanoshel.com Contact: +1 302 268 6163 (US and Europe), Contact: +91-9779550077 (India). We invite you to contact us for further information about our company and our capabilities. At Nanoshel, we could be glad to be of service to you. We look forward to your suggestions and feedback.


Silver Nanoparticles Agriculture

Silver Nanoparticles Agriculture

Silver Nanoparticles in Agriculture

Silver Nanoparticles Agriculture: The size of silver Nanoparticles is 1nm to 100nm. Commonly used are spherical silver Nanoparticles. Their extremely large surface area permits the coordination of a vast number of ligands. Silver nanoparticles have long been known for their antibacterial, antifungal, anti-viral and anti-inflammatory properties. The AgNP has had sufficient time to reach its target, release of the payload could be triggered by internal or external stimulus. The targeting and accumulation of nanoparticles to a designated area ensures high drug concentration at specific sites and thus minimizes side effects. Silver Nanoparticles widely use in a range of agriculture applications including diagnosis, target drug delivery, pest control, virus disease , delivery system of pest etc.

Silver Nanoparticles Agriculture

Silver Nanoparticles Agriculture

 

Application of silver Nanoparticles pepper anthracnose disease

Silver Nanoparticles Agriculture: Anthracnose disease, which cause by fungal pathogen Colletotrichum is a devastating disease that occurs on many commercially important plants like bean, strawberry, perilla and other crop plants. we evaluated the effect of silver nanoparticles against pepper anthracnose under different culture conditions. Silver nanoparticles (WA-PR-WB13R) were applied at various concentrations to determine antifungal activities in vitro and in the field.The inhibition effects of silver nanoparticles against Colletotrichum species and pepper anthracnose disease in vitro and in field trial conditions, respectively. In vitro studies deal with the effect of silver nanoparticles on Colletotrichumspecies under different concentrations and growth medium as well as the control mechanism of silver nanoparticles against Colletotrichumin field trials.

SILVER Nanoparticles in Agriculture and Marine Pest Control

Silver Nanoparticles Agriculture: Pests are a key antagonist against agricultural production systems. White grubs are common insect pests of sugarcane throughout the world . Lepidiota mansueta Burmeister is a major sugarcane white grub, which causes heavy damage to sugarcane by root invasion. The III- instar larvae of the grub damages the underground part of the stem and root in sugarcane. This leads to the reduction of growth, and ulti-mately death.

SILVER Nanoparticles in Agriculture

The land snail Eobania vermiculata is an important crop pest causing considerable damage in agriculture. The aim of the present work is to evaluate the possibilities of using silver nanoparticles (AgNPs) to control the land snail. The AgNPs have been synthesized biologically using white radish (Raphanus sativus var. aegyptiacus). The biosynthesis was regularly monitored by UV-Vis spectroscopy. X-ray diffraction spectra revealed peaks of crystalline nature of AgNPs and the transmission electron micrographs further confirmed the size of the synthesized nanoparticles ranging from 6 to 38 nm. The exposure of the snails and soil matrix to AgNPs in a laboratory experiment reduced the activity and the viability of the land snail (20% of AgNPs treated snails died) as well as the frequency of fungal population in the surrounding soil. Moreover histology and ultra structure alterations have been found in both kidney and the digestive gland of AgNPs treated land snails.

SILVER Nanoparticles in Agriculture
Extracellular agents produced by newly isolated bacterial strains were able to catalyze the synthesis of silver nanoparticles (AgNPs). The most effective isolates were identified as Bacillus pumilus, B. persicus, and Bacillus licheniformis using molecular identification. The nanoparticles, especially those synthesized by B. licheniformis, were stable (zeta potential ranged from −16.6 to −21.3 mV) and showed an excellent in vitro antimicrobial activity against important human pathogens and a considerable antiviral activity against the Bean Yellow Mosaic Virus. The significance of the particular antiviral activity is highlighted, given the significant yield reduction in fava bean crops resulting from Bean Yellow Mosaic Virus infections. There are very few reports on the effectiveness of AgNPs against plant viruses.

Nanotech delivery systems for pests, nutrients and plant hormones: In the proficient use of agricultural natural assets like water, nutrients and chemicals during precision farming, nanosensors and nano-based smart delivery systems are user friendly. It makes the use of nanomaterials and global positioning systems with satellite imaging of fields, farm supervisors might distantly detect crop pests or facts of stress such as drought. Nanosensors disseminated in the field are able to sense the existence of plant viruses and the level of soil nutrients. To put aside fertilizer consumption and to minimize environmental pollution, nanoencapsulated slow release fertilizers have also become a style.

silver nanoparticles in agriculture:
Nanocapsules can facilitate successful incursion of herbicides through cuticles and tissues, allowing slow and regular discharge of the active substances. This can be act as ‘magic bullets’, containing herbicides, chemicals or genes which target exacting plant parts to liberate their substance . Torney et al. has exploited a 3 nm mesoporous silica nanoparticle in delivering DNA and chemicals into isolated plant cells. Mesoporous silica nanoparticle are chemically coated and act as containers for the genes delivered into the plants, and triggers the plant to take the particles through the cell walls, where the genes are put in and activated in a clear-cut and controlled way, without any toxic side effects. This technique firstly has been applied to establish DNA fruitfully to tobacco and corn plants.

Silver Nanoparticles Agriculture

Silver Nanoparticles Agriculture

Contact Us for Silver Nanoparticles in Agriculture
From us, you can easily purchase Silver Nanoparticles Agriculture at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at sales@nanoshel.com Contact: +1 302 268 6163 (US and Europe), Contact: +91-9779550077 (India). We invite you to contact us for further information about our company and our capabilities. At Nanoshel, we could be glad to be of service to you. We look forward to your suggestions and feedback.


Silver Nanoparticle Applications

Silver Nanoparticle Applications

New Generation of Antimicrobial

Silver Nanoparticle Applications metal has long been used in ayuriedic therapeutics since ancient times due to its effeciene anti microbial properties. Silver Nanoparticle of various concentrations were supplemented in liquid systems. As results, Yeast and E. coli were inhibited at the low concentration of Ag nanoparticles, whereas the growth-inhibitory effects on S.aureus were mild. The free-radical generation effect of Silver nanoparticle on microbial growth inhibition was investigated by electron spin resonance spectroscopy

Silver Nanoparticle Applications

Silver Nanoparticle have emerged as an arch product in this field due to its anti microbial properties. The use of silver based antimicrobial agents has emerged due to the fact that an increase of bacterial resistance to antibiotics. An improved bactericidal activity is attributed to AgNPs because of their electronic effects that results a change in the local electronic structure of the surfaces of the nanosized particles, i.e., enhancement of the reactivity of Silver nanoparticle surfaces. The Silver Nanoparticle Applications are capable of inactivating the vital enzymes and also help in prevention of the replication of DNA. silver nanopartilcle applications were used to target the bacterial membrane to destabilize the plasma membrane potential that leads to the depletion of the levels of intracellular adenosine triphosphate, resulting in the death of bacterial cells.

Antimicrobials

Silver Nanoparticle Applications Some of the earliest medical uses of nanotechnology have involved antimicrobial coating often made of Silver Nanoparticle Applications, on wound dressing to prevent infection and on things like catheters to prevent the formation of bio films. There has even been work on application of silver nanoparticle  solution directly to wounds.

Nanoparticles are used in Dental biomaterial:

Bio-films through the use of nanoparticles with biocide, anti-adhesive, and drug delivery. Silver nanoparticles materials, include spherical, cubic, and needle-like nanoscaled particles and near-nanoscaled device. Silver Nanoparticle coated on surfaces which have potential antimicrobial applications with in oral cavity. It is generally recognized that silver nanoparticles may attach to the cell wall, thus disturbing cell-wall permeability and cellular respiration. The nanoparticles may also penetrate inside the cell causing damage by interacting with phosphorus and sulphur containing compounds such as DNA and protein. Generally, silver does not adversely affect viable cells and does not easily provoke microbial resistance. Hence silver containing materials were also employed in textile fabrics, as food additives, and in package and plastics to eliminate microorganisms. Because of such a wide range of applications, numerous methods concerning the fabrication of silver nanoparticles, as well as various silver-based compounds containing metallic silver (Silver Nanoparticle Applications) have been developed.

Contact Us for Highly Pure Silver Nanoparticles 

Silver Nanoparticle

Silver Nanoparticle

From us, you can easily purchase Silver Nanoparticles at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at sales@nanoshel.com Contact: +1 302 268 6163 (US and Europe), Contact: +91-9779550077 (India). We invite you to contact us for further information about our company and our capabilities. At Nanoshel, we could be glad to be of service to you. We look forward to your suggestions and feedback.


Quantum Dots for Cancer Diagnosis and Therapy

Quantum Dots for Cancer Diagnosis and Therapy

Quantum dots (QDs) are semiconductor nanocrystals that emit fluorescence on excitation with a light source. They have excellent optical properties, including high brightness, resistance to photobleaching and tunable wavelength. Recent developments in surface modification of QDs enable their potential application in cancer imaging. QDs with near-infrared emission could be applied to sentinel lymph-node mapping to aid biopsy and surgery. Conjugation of QDs with biomolecules, including peptides and antibodies, could be used to target tumors in vivo. In this review, we summarize recent progress in developing QDs for cancer diagnosis and treatment from a clinical standpoint and discuss future prospects of further improving QD technology to identify metastatic cancer cells, quantitatively measure the level of specific molecular targets and guide targeted cancer therapy by providing biodynamic markers for target inhibition.

Quantum Dots for Cancer Diagnosis and Therapy

Quantum Dots for Cancer Diagnosis and Therapy

 

Imaging is an important clinical modality used in determining appropriate cancer therapy. Current imaging techniques, including x-ray, computed tomography, ultrasound, radionuclide imaging and MRI, have been used widely for cancer screening and staging, determining the efficacy of cancer therapy and monitoring recurrence (reviewed in).However, current imaging techniques have two major limitations. First, they do not have sufficient sensitivity to detect small numbers of malignant cells in the primary or metastatic sites. Second, the imaging techniques have not been developed to detect specific cancer cell-surface markers. In many instances, these cell-surface markers might be targets for cancer therapy and might assist in the diagnosis and staging of cancer. These limitations demand improvement in current imaging techniques and the development of new imaging probes that are highly sensitive and biospecific. Quantum dot (QD) imaging probes, although still in the early development stage, provide the potential to fulfill these requirements for in vivo cancer imaging.

Bioconjugation Quantum Dots are among the most promising items in the nanomedicine toolbox. These nanocrystal fluorophores have several potential medical applications including nanodiagnostics, imaging, targeted drug delivery, and photodynamic therapy. The diverse potential applications of Bioconjugation Quantum Dots are attributed to their unique optical properties including broad-range excitation, size-tunable narrow emission spectra, and high photostability.

The Drug delivery quantum dots nanocrystals fluoresce when excited by a light source, emitting bright colors that can identify and track properties and processes in various biological applications. They have significant advantages over traditional fluorophores as they can be predictably tuned according to their size, shape and intrinsic solid-state properties. Their flexibility means it has applications in cell biology, drug discovery, cancer research and other fields.

Millions of people die from cancer every year, especially from lung cancer. Even though no existing method can defeat cancer, tumor therapies such as surgery, Quantum Dots Cancer Therapy tiny light-emitting particles on nanometer scale, are new type of fluorescent probes for molecular and cellular imaging. Compared with organic dyes and fluorescent proteins, Quantum Dots Cancer Therapy have unique optical and electronic properties in cellular imaging: Wavelength-tunable emission, improved brightness of signal, resistance against photobleaching, etc. Such preponderant optical properties were not realized until the QD-based probes are equipped with war heads targeting tumor.

Quantum Dots for Cancer Diagnosis and Therapy

Quantum Dots for Cancer Diagnosis and Therapy

 

Quantum Dots Cancer Therapy coated with urea or acetate groups might stain the nucleus. InP/ZnS QDs conjugated with anti-human PCNA antibody to label PCNA (proliferating cell nuclear antigens) in breast cancer tissues. Labeling nuclear antigens in tumor cells with Quantum Dots Cancer Therapy-conjugated bioprobes offers people with useful and reliable information for biomedical analysis and cancer diagnosis.

Quantum Dots for Cancer Diagnosis and Therapy

Quantum Dots for Cancer Diagnosis and Therapy

Contact Us for Quantum Dots for Cancer Diagnosis and Therapy
From us, you can easily purchase nanomaterials at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at sales@nanoshel.com Contact: +1 302 268 6163 (US and Europe), Contact: +91-9779550077 (India). We invite you to contact us for further information about our company and our capabilities. At Nanoshel, we could be glad to be of service to you. We look forward to your suggestions and feedback.