NANOPEC

9040 S Rita Rd

Suite 1270

Tucson, AZ 85747

USA

+1 520 382 3273

info@nanopec.com

©2020 by NANOPEC

MetaPurex applications include:

 

  • Ultra-filtration:   MetaPurex is ideal for processing from a few micro-liters to a few milliliters of valuable biological samples.  MetaPurex is capable of eliminating all bacteria, including mycoplasma and most common viruses above 60 nm in diameter.  Soon a unique 200 nm uniform, ordered, defect free, mechanically protected for high negative pressure MetaPurex will be available for processing significantly larger volumes.  AccuPurex can bring your processing volumes from hundreds of milliliters to higher than a liter per hour.  Write to us to inquire pricing and availability.

 

  • Cell Therapy & Tissue Engineering:  for cell-culture the optimized nano-pores in  MetaPurex serve as anchoring points for  cell philopodia, promoting adhesion and faster differentiation.  Up to 30% faster differentiation and growth has been observed.

 

  • Nano-template fabrication: a perfect mold for fabricating nano-wires, nano-rods, nanotubes.  From gold to carbon to silicon. MetaPurex pores are straight through and through, with excellent insulating properties, chemical, mechanical, thermal and optical properties.

  • Bio-Assays:  Because of its high optical transparency, chromium and mercury free fabrication, MetaPurex is an ideal ceramic to hold bio-assays on cell cultures.  MetaPurex shows two orders of magnitude enhanced fluorescence over traditional silica glass substrates.

 

  • Photonics: Information processing in photonics is currently handled by artificial structures known as photonic crystals. These dielectric structures can be made from materials such as silicon, compound semiconductors, ceramics or polymers. The functionality of these structures depends on the periodic variation in refractive index, which results in photonic band gap in the structure at a frequency range. MetaPurexTM has tunable refractive index properties, from 1.8 to 1.0, which makes is an ideal medium to generate photonic components.   Multiple layers of alternating MetaPurexTM films with varying refractive index, or by periodic variation of some characteristic (such as thickness or pore diameter) can lead to dielectric waveguides and distributed Bragg reflectors (DBR).   As compared to traditional photonic substrates: Silicon, Quartz, Borosilicate BK7, Sapphire MetaPurexTM contains nano-structures that can be modified with single defects and generate nanocavities for the construction of: AND, NOT and OR gates, non-Hermitian photonics,

 

  • Nano-containers: MetaPurex supported membranes (microscope slides or silicon wafers)  can hold material volumes (solid, liquids, gels) on the order of a few  pico-liters or less. Nano-containers have multiple applications, from bio-capsules for islet isolation (liver, renal, pancreas) to nano-reactors for production of chemical libraries, medical diagnostics, drug delivery or new genomic sequencing (NGS) containers for massively parallel sequencing of RNA and DNA.

  • Fuel cells:  the nano-pores in MetaPurexTM can easily be filled with Nafion.  Given the size of the pores (50-60 nm) the water micro-channels generated in the pores are longer lasting and more numerous than in the unsupported A proton exchange membrane, such as Nafion 1135, 115 or 117.

  • Capacitors: Nanotubular metal–insulator–metal capacitor arrays for energy storage: the large area nside the open volume of a nanostructured ceramic film template can be used  to fabricate arrays of metal–insulator–metal nanocapacitors. These highly regular arrays have a capacitance per unit planar area of ~ 10 mF/cm^2 for 1-mm-thick ceramic film and 100 mF/cm^2 for 10-mm-thick anodic, significantly exceeding previously reported values for metal–insulator–metal capacitors in porous templates. It should be possible to scale devices fabricated with this approach to make viable energy storage systems that provide both high energy density and high power density.

 

  • Battery Separators: Through hole membrane as separator for Lithium ion batteries:  Good mechanical strength, electrolyte infiltration and retention compared to commercial polymer separators.  Better cycling stability, rate capability and low-temperature performance are superior also to polymer separators. The excellent electrochemical performance can be attributed to good amphiphilic characteristic, high porosity and uniform through-pore structure of these ceramic film separators.

 

  • Desalination Membrane:  Direct contact membrane distillation (DCMD) processes exploit water-repellant membranes to desalt warm seawaters by allowing only water vapor to transport across. While perfluorinated membranes/coatings are routinely used for DCMD, their vulnerability to abrasion, heat, and harsh chemicals necessitates alternatives, such as ceramics. Nano-porous superhydrophobic ceramic films accomplish the separation of hot salty water (343 K, 0.7 M NaCl) and cold deionized water (292 K).  The average vapor fluxes, J, across three sets of ceramic membranes with average nanochannel diameters (and porosities) centered at 80 nm (32%), 100 nm (37%), and 160 nm (57%) varied by < 25%.  The high thermal conductivity of the ceramic membranes reduced the effective temperature.

 

  • Anode Encapsulation: MetaPurex can be used to enhance lithium ion battery cycling when used with silicon nanowire anodes. Template growth can eliminate parasitic silicon under layer islands. The formation of parasitic Si islands for Si nanowires grown directly on metal current collectors can be avoided by growth through nano-structured ceramic templates containing MetaPurex high density of sub-100 nm nanopores. Using these templates significantly enhanced cycling stability for Si nanowire-based lithium-ion battery anodes can be achieved, with retentions of more than ∼1000 mA·h/g discharge capacity over 1100 cycles.

 

  • Solar Cell Reflection: Performance enhancement of pc-Si solar cells through combination of anti-reflection and light-traping: Nano-structured ceramic films can be put on the front side of pc-Si solar cells to serve as anti-reflecting coating and light-trapping structures. On the basis of the Fresnel Reflection Principle, primary reflection losses can be reduced by multi-layer dielectric film with varying refractive index, regarded as anti-reflection coating.  This leads to an increase of short-circuit current density (1.32 mA/cm2) with SiNx:H/Ceramic film complex coating. The relative power conversion efficiency obtains a growth about 2.2% points. 

If you would like additional information on any of these application areas write to us.