Silver Nanoparticles

High Purity Ag Nanoparticles / Nanopowder
CAS 7440-22-4

Product Product Code Order or Specifications
(2N) 99% Silver Nanoparticles AG-M-02-NP Contact American Elements
(2N5) 99.5% Silver Nanoparticles AG-M-025-NP Contact American Elements
(3N) 99.9% Silver Nanoparticles AG-M-03-NP Contact American Elements
(3N5) 99.95% Silver Nanoparticles AG-M-035-NP Contact American Elements
(4N) 99.99% Silver Nanoparticles AG-M-04-NP Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
Ag 7440-22-4 24880887 N/A MFCD00003397 231-131-3 N/A N/A [Ag] InChI=1S/Ag BQCADISMDOOEFD-UHFFFAOYSA-N

PROPERTIES Mol. Wt. Appearance True Density Bulk Density Melting Point Boiling Point Average Particle Size Size Range Crystal Phase Specific Surface Area Morphology MSDS
107.87 Silver 10490 kg/cm3 0.312 g/cm3 961.78 °C 2162 °C <100 nm 80-100 nm cubic 5.37  m2/g spherical Safety Data Sheet

High Purity, D50 = +10 nanometer (nm) by SEMSilver (Ag) Nanoparticles, nanodots or nanopowder are spherical or nanoflake high surface area metal particles with properties and uses that include inhibiting transmission of HIV and other viruses. See Material Safety Data Sheet (MSDS) and recent research.  Nanoscale Silver Particles are available in the size range of 10-200 nm, with specific surface area (SSA) in the 30-60 m 2 /g range and also available as flakes with an average particle size of  2-10 micron range with a specific surface area of approximately 40-80 m 2 /g. Nano Silver Particles are also available in Ultra high purity and high purity, coated, oleic oil-coated, dispersed, and polymer-dispersed forms. They are also available as a nanofluid through the AE Nanofluid production group. Nanofluids are generally defined as suspended nanoparticles in solution either using surfactant or surface charge technology. Nanofluid dispersion and coating selection technical guidance is also available. Other nanostructures include nanorods, nanowhiskers, nanohorns, nanopyramids and other nanocomposites. Surface functionalized nanoparticles allow for the particles to be preferentially adsorbed at the surface interface using chemically bound polymers.

Development research is underway in Nano Electronics and Photonics materials, such as MEMS and NEMS, Bio Nano Materials, such as Biomarkers, Bio Diagnostics & Bio Sensors, and Related Nano Materials, for use in Polymers, Textiles, Fuel Cell Layers, Composites and Solar Energy materials. Nanopowders are analyzed for chemical composition by ICP, particle size distribution (PSD) by laser diffraction, and for Specific Surface Area (SSA) by BET multi-point correlation techniques. Novel nanotechnology applications also include Quantum Dots. High surface areas can also be achieved using solutions and using thin film by sputtering targets and evaporation technology using pellets, rod and foil.. Applications for silver nanocrystals and flakes include as an anti-microbial, anti-bacterial, anti-viral, anti-biotic and anti-fungal agent when incorporated in coatings, nanofiber, first aid bandages, dressings, sticking plasters, plastics, soap and textiles, in self cleaning fabrics, and as conductive filler. It is also used in nanowire and in certain catalyst applications. S-MITE HIV Inhibator is a proprietary form of silver nano powder that has been shown to deactivate HIV by inhibiting the virus from attaching to the host with undetectable levels of cytotoxicity. HIV medical health creams may prevent sexual transmission of HIV-1. See the Silver Nanoparticles Product  Data Sheet. Silver Nano Particles are generally immediately available in most volumes. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Silver (Ag)atomic and molecular weight, atomic number and elemental symbolSilver (atomic symbol: Ag, atomic number: 47) is a Block D, Group 11, Period 5 element with an atomic weight of 107.8682. Silver Bohr ModelThe number of electrons in each of Silver's shells is 2, 8, 18, 18, 1 and its electron configuration is [Kr]4d10 5s1. The silver atom has a radius of 144 pm and a Van der Waals radius of 203 pm. Silver was first discovered by Early Man prior to 5000 BC. In its elemental form, silver has a brilliant white metallic luster. Elemental SilverIt is a little harder than gold and is very ductile and malleable, being exceeded only by gold and perhaps palladium. Pure silver has the highest electrical and thermal conductivity of all metals and possesses the lowest contact resistance. It is stable in pure air and water, but tarnishes when exposed to ozone, hydrogen sulfide, or air containing sulfur. It is found in copper, copper-nickel, lead, and lead-zinc ores among others. Silver was named after the Anglo-Saxon word "seolfor" or "siolfur," meaning 'silver'. For more information on silver, including properties, safety data, research, and American Elements' catalog of silver products, visit the Silver Information Center.


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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

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Recent Research & Development for Silver

  • Mingzhong Zou, Jiaxin Li, WeiWei Wen, Luzhuo Chen, Lunhui Guan, Heng Lai, Zhigao Huang, Silver-incorporated composites of Fe2O3 carbon nanofibers as anodes for high-performance lithium batteries, Journal of Power Sources, Volume 270, 15 December 2014
  • Qiyu Wang, Xiaoqiang CUI, Weiming Guan, Lei Zhang, Xiaofeng Fan, Zhan Shi, Weitao Zheng, Shape-dependent catalytic activity of oxygen reduction reaction (ORR) on silver nanodecahedra and nanocubes, Journal of Power Sources, Volume 269, 10 December 2014
  • Huang Lin-jun, Wang Yan-xin, Huang Zhen, Tang Jian-guo, Wang Yao, Liu Ji-xian, Jiao Ji-qing, Liu Jing-quan, Laurence A. Belfiore, Effects of graphene/silver nanohybrid additives on electrochemical properties of magnesium-based amorphous alloy, Journal of Power Sources, Volume 269, 10 December 2014
  • Nguyen Thi Lan, Do Thi Chi, Ngo Xuan Dinh, Nguyen Duy Hung, Hoang Lan, Pham Anh Tuan, Le Hong Thang, Nguyen Ngoc Trung, Nguyen Quang Hoa, Tran Quang Huy, Nguyen Van Quy, Thanh-Tung Duong, Vu Ngoc Phan, Anh-Tuan Le, Photochemical decoration of silver nanoparticles on graphene oxide nanosheets and their optical characterization, Journal of Alloys and Compounds, Volume 615, 5 December 2014
  • Liangtao Pu, Kexun Li, Zhihao Chen, Peng Zhang, Xi Zhang, Zhou Fu, Silver electrodeposition on the activated carbon air cathode for performance improvement in microbial fuel cells, Journal of Power Sources, Volume 268, 5 December 2014
  • Yanan Yu, Mingzhe Jia, Huifeng Tian, Jingbo Hu, The fabrication of silver ion implantation-modified electrode and its application in electrocatalytic oxidation of formaldehyde, Journal of Power Sources, Volume 267, 1 December 2014
  • Sandeep Nigam, Chiranjib Majumder, Comparison between cluster and slab model for Pt-group atom adsorption on gold and silver substrate, Surface Science, Volume 630, December 2014
  • Yuan-Fong Chau, Chih-Chan Hu, Ci-Yao Jheng, Yao-Tsung Tsai, Li-Zen Hsieh, Wayne Yang, Chien-Ying Chiang, Yuh-Sien Sun, Cheng-Min Lee, Numerical investigation of surface plasmon resonance effects on photocatalytic activities using silver nanobeads photodeposited onto a titanium dioxide layer, Optics Communications, Volume 331, 15 November 2014
  • Safaa N. Saud, E. Hamzah, T. Abubakar, H.R. Bakhsheshi-Rad, S. Farahany, A. Abdolahi, M.M. Taheri, Influence of Silver nanoparticles addition on the phase transformation, mechanical properties and corrosion behaviour of Cu–Al–Ni shape memory alloys, Journal of Alloys and Compounds, Volume 612, 5 November 2014
  • K. Thanigai Arul, J. Ramana Ramya, G.M. Bhalerao, S. Narayana Kalkura, Physicochemical characterization of the superhydrophilic, magnesium and silver ions co-incorporated nanocrystalline hydroxyapatite, synthesized by microwave processing, Ceramics International, Volume 40, Issue 9, Part A, November 2014
  • Lorena Soria, Paloma Ovejero, Mercedes Cano, José A. Campo, M. Rosario Torres, Cristina Núñez, Carlos Lodeiro, Selecting pyrazole-based silver complexes for efficient liquid crystal and luminescent materials, Dyes and Pigments, Volume 110, November 2014
  • Osman Ozturk, Ozlem Oter, Serdar Yildirim, Elif Subasi, Kadriye Ertekin, Erdal Celik, Hamdi Temel, Tuning oxygen sensitivity of ruthenium complex exploiting silver nanoparticles, Journal of Luminescence, Volume 155, November 2014
  • Leila Farzampour, Mohammad Amjadi, Sensitive turn-on fluorescence assay of methimazole based on the fluorescence resonance energy transfer between acridine orange and silver nanoparticles, Journal of Luminescence, Volume 155, November 2014
  • Dennis Wittmaier, Norbert Wagner, K. Andreas Friedrich, Hatem M.A. Amin, Helmut Baltruschat, Modified carbon-free silver electrodes for the use as cathodes in lithium–air batteries with an aqueous alkaline electrolyte, Journal of Power Sources, Volume 265, 1 November 2014
  • Hemant P. Borase, Chandrashekhar D. Patil, Rahul B. Salunkhe, Rahul K. Suryawanshi, Bipinchandra K. Salunke, Satish V. Patil, Inhibition of restriction endonucleases by biofunctionalized silver nanoparticles: An in vitro study, Materials Letters, Volume 134, 1 November 2014
  • Hongsheng Luo, Zhiwei Li, Guobin Yi, Xihong Zu, Huan Wang, Yunjia Wang, Hailiang Huang, Jiwen Hu, Zhenfei Liang, Benbin Zhong, Electro-responsive silver nanowire-shape memory polymer composites, Materials Letters, Volume 134, 1 November 2014
  • Hui Liu, Tingting Liu, Xiaonan Dong, Zhenfeng Zhu, A novel fabrication of silver-modified 3D singlecrystal nanowires-assembled rutile TiO2 nanoflowers with enhanced visible photocatalytic activities, Materials Letters, Volume 134, 1 November 2014
  • Lang Pei, Weidong Xiang, Xiuli Zhao, Xiaojuan Liang, Xinyu Yang, Haitao Liu, Zhaoping Chen, Cuiping Xie, Xin Ma, Chenglong Zhang, Li Ma, Jialong Zhao, Sol–gel synthesis of silver nanocrystals embedded in sodium borosilicate monolithic transparent glass with giant third-order optical nonlinearities, Materials Research Bulletin, Volume 59, November 2014
  • J. Ashok Kumar, S. Perumal, K.R. Murali, Brush electrodeposited silver indium selenide films and their optical characteristics, Materials Science in Semiconductor Processing, Volume 27, November 2014
  • Junwoo Kim, Navaneethan Duraisamy, Taik-Min Lee, Inyoung Kim, Kyung-Hyun Choi, Hybrid electrohydrodynamic atomization of nanostructured silver top contact for inverted organic solar cells, Solar Energy Materials and Solar Cells, Volume 130, November 2014