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  • Release time: 2018 - 03 - 12
    Ultrathin AAO templates have self-organized honeycomb-like nanopores, and they are usually from several ten nanometers to several hundred nanometers in thickness.Ultrathin AAO templates have been widely used for fabrication of large-scale ordered arrays of surface nanostructures such as nanodots and nanoholes on the surface of substrates. Pores of ultrathin AAO template are uniform in diameter and highly ordered in a short-range. In addition, the material (Al2O3) is transparent in the near-infrared and visible spectrum, and is electrically insulated. Compared to other technology for making ord...
    Ultrathin AAO templates have self-organized honeycomb-like nanopores, and they are usually from several ten nanometers to several hundred nanometers in thickness.Ultrathin AAO templates have been widely used for fabrication of large-scale ordered arrays of surface nanostructures such as nanodots and nanoholes on the surface of substrates. Pores of ultrathin AAO template are uniform in diameter and highly ordered in a short-range. In addition, the material (Al2O3) is transparent in the near-infrared and visible spectrum, and is electrically insulated. Compared to other technology for making ord...
  • Release time: 2018 - 03 - 13
    A new type of AAO product (V-shape AAO) is developed by Topmembranes Technology. Compared to other anodic alumina membranes products, this profile of type of AAO is precisely tailored by the synergistic control of anodizing time, etching time and cyclic times, resulting in a unique structure for a wide range of applications.For more applications of V-shape AAO, please refer to: Adv. Mater. 2014, 26, 2805;ACS Nano, 2015, 9, 10287;Adv. Funct. Mater. 2017, 27, 1604720;Nanoscale Research Letters 2013, 8,268;J. Phys. Chem. C 2017, 121, 9757; Nano Energy, 2016, 22, 539; ACS Nano 2017, 11, 5113. ...
  • Release time: 2018 - 03 - 13
    AAO on Al substrate has honeycomb-like structure (shown in Fig. 1), composed with hexagon column of Al2O3, with a circular pore in the center. At the end of the pore, there is a half-sphere shape barrier layer oxide layer in contact with aluminum. The porous oxide film contains mutually parallel cylindrical pores extending from the barrier oxide layer to the film surface. AAO on Al substrate is the simplest product in AAO family, which can be fabricated into large area with a high success rate. Fig. 2 shows a typical picture of the AAO template.Fig. 1. Schematic of AAO on Al substrate.  F...
  • Release time: 2018 - 03 - 13
    Isotropic AAO templates, often referring to thicker AAO to be different from ultrathin AAO membrane, are widely used for a number of different fields. Topmembranes technology is specialized to make high quality isotropic AAO templates, with highly uniform and regular pore on both sides of the surfaces. The pores are arranged hexagonally within the single grains of the aluminum. The translucent nature of AAO is appealing to applications in biomedical field.Fig. 1. The structure diagram of isotropic AAO templates.Fig. 2. Typical SEM images of both sides of isotropic AAO template. Fig. 3. Ty...
  • Release time: 2018 - 03 - 13
    An sprayer, or airbrush, is an ideal tool for applying a thin layer of material on the substrate.We sell this for your convenience, the price of all set is less than $50. Depending on the amount of your purchase of other product, this airbrush can be free for your use.
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Telephone : +86 0755-2350 5289

Mail : service@topmembranes.com

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Address : Tingwei Industrial Park, 6 Liufang Rd., Baoan District

Product Name

Microporous organic membrane

Date: 2018-03-13
Author: 4988

Micropore organic membrane

The ideal microporous membranes is supposed to have uniform pores, which are critical to the precise control of industry processes, such as filtration, separation, purification and material preparation. This kind of membrane has wide applications in the fields of chemical industry, medicine, biopharmaceuticals, quality control and water treatment. However, the current techniques of membrane fabrication (e.g. track etching) and synthesis (e.g. phase inversion and interfacial polymerization) have disadvantages of complexity, multiple-procedure, and uncertainty.  All of these methods lack of precise control of pore size, leading to inefficient membranes in various applications.

To realize accurate control of homogeneous membrane modality, we have developed a special microfabrication technique. With this original method, we can fabricate the homogeneous and porous organic membrane, which features straight, uniform and smooth micropores in a regular array arrangement. The standard deviation (SD) of the pore diameter is less than 3% and the porosity is up to 50%. Compared with the microporous membranes in the market, our product has superior performances in pore size uniformity, porosity, pore-open ratio, water flux, retention rate, chemical and physical stability, etc. 

Membrane customization is provided in terms of pore size, shape, arrangement and thickness according to specific requirements of our customers. In the nature of our fabrication, our customization is economical, and thus suitable for experimental test in research. The final design can be also easily upgraded to mass production for future commercialization.

Micro organic membrane

Figure 1. Micropore organic membrane (13mm)

Microporous organic membrane

Figure 2. The SEM sectional view of OM3-6-14

Microporous organic membrane

Figure 3. The SEM front view of OM5-10-14

Microporous organic membrane

Figure 4. The SEM sectional view of OM5-10-14

Micropore organic membrane

Figure 5. The SEM front view of OM7-11-17

Micropore organic membrane

Figure 6. The SEM sectional view of OM7-11-17

Microporous organic membrane

Figure 7. The SEM front view of OM10-20-14

Microporous organic membrane

Figure 8. The SEM sectional view of OM10-20-14 

Microporous organic membrane

Figure 9. The SEM front view of OM2*10-10

Microporous organic membrane

Figure 10. The SEM front view of OM3*15-10

Microporous organic membrane

Figure 11. The SEM front view of OM4*20-10 

Microporous organic membrane

Figure 12. The SEM front view of OM2-6-10

Microporous organic membrane

Figure 13. The SEM front view of OM2-7-10 

Microporous organic membrane

Figure 14. The SEM front view of OM7*35-12

Microporous organic membrane

*The above are micropore membranes with pore diameter of 2, 3, 5, 7, 10 μm. If you need customization, please contact our customer service.

The potential applications of this kind of homogeneous micropore membranes include the filtration and separation of various micro-particles, e.g. biological sample filtration, cell strainer, cell filtration, cell separation and cell enrichment, separation and capture of cells. The packaged membrane is 13mm in diameter and can fit a standard syringe filter. It is attached to a support ring for easy gripping.

Microporous organic membrane

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