Fabrication and characterization of polymeric microfiltration membranes using aperture array lithography

Han, Keping; Xu, Wendong; Ruiz, Ariel; Ruchhoeft, Paul; Chellam, Shankararaman

doi:10.1016/j.memsci.2004.09.044

Cited by 37 publications

(45 citation statements)

References 17 publications

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“…Other cleanroom technologies can also be applied to polymeric materials, for example, photolithography was used to produce extremely regular polymeric microfiltration membranes. [76,77] …”

Section: Track Edgementioning

confidence: 99%

Porous Polymer Membranes by Hard Templating – A Review

2017

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Membranes are designed to bridge a precise separation process at the nanoscale with industrial applications running at cubic meters per hour. This review outlines materials applied in membrane production with a particular focus on polymers. Membrane performance and created value are directly linked to controlled pore formation. Their economic relevance has created a number of large companies and associated academic research at top institutions. The authors review, therefore, starts from well-established techniques applied in products and then moves on to evolving concepts from academia. Pore formation through hard templating is a versatile field for separation processes. A more detailed view is given on the two known concepts for nanopore formation, namely colloidal templates and random hard salt templating. A comparison between these two concepts underlines their relevance to combine a process specific separation with large scale manufacturing requirements (i.e., upscale possibility, flexible process control and environmental impact).

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“…Other cleanroom technologies can also be applied to polymeric materials, for example, photolithography was used to produce extremely regular polymeric microfiltration membranes. [76,77] …”

Section: Track Edgementioning

confidence: 99%

Porous Polymer Membranes by Hard Templating – A Review

2017

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“…Thus, ceramic, glass, metallic or even membranes made from metal oxides, graphite or different polymers are widely used. MF can be applied in various industries either to protect products from microorganisms or for particles' separation (Han et al, 2005).…”

Section: Microfiltrationmentioning

confidence: 99%

Membrane Processing Technology in the Food Industry: Food Processing, Wastewater Treatment, and Effects on Physical, Microbiological, Organoleptic, and Nutritional Properties of Foods

Kotsanopoulos

Arvanitoyannis

2013

Critical Reviews in Food Science and Nutrition

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Membrane processing technology (MPT) is increasingly used nowadays in a wide range of applications (demineralization, desalination, stabilization, separation, deacidification, reduction of microbial load, purification, etc.) in food industries. The most frequently applied techniques are electrodialysis (ED), reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF). Several membrane characteristics, such as pore size, flow properties, and the applied hydraulic pressure mainly determine membranes' potential uses. In this review paper the basic membrane techniques, their potential applications in a large number of fields and products towards the food industry, the main advantages and disadvantages of these methods, fouling phenomena as well as their effects on the organoleptic, qualitative, and nutritional value of foods are synoptically described. Some representative examples of traditional and modern membrane applications both in tabular and figural form are also provided.

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“…Screen-filters, characterized by having well-ordered straight pores, realize the separation by a sieving mechanism based only on pore size: molecules and/or particles smaller than the pore diameter pass easily through the porous membrane, whereas species larger than the pore diameters are retained. They can be obtained by lithographic techniques or templating approaches [15–16]. Depth-filters are characterized by having a tortuous disordered porous network.…”

Section: Introductionmentioning

confidence: 99%

Selective porous gates made from colloidal silica nanoparticles

Nisticò

Avetta

Calza

et al. 2015

Beilstein J. Nanotechnol.

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SummaryHighly selective porous films were prepared by spin-coating deposition of colloidal silica nanoparticles on an appropriate macroporous substrate. Silica nanoparticles very homogenous in size were obtained by sol–gel reaction of a metal oxide silica precursor, tetraethyl orthosilicate (TEOS), and using polystyrene-block-poly(ethylene oxide) (PS-b-PEO) copolymers as soft-templating agents. Nanoparticles synthesis was carried out in a mixed solvent system. After spin-coating onto a macroporous silicon nitride support, silica nanoparticles were calcined under controlled conditions. An organized nanoporous layer was obtained characterized by a depth filter-like structure with internal porosity due to interparticle voids. Permeability and size-selectivity were studied by monitoring the diffusion of probe molecules under standard conditions and under the application of an external stimulus (i.e., electric field). Promising results were obtained, suggesting possible applications of these nanoporous films as selective gates for controlled transport of chemical species in solution.

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Fabrication and characterization of polymeric microfiltration membranes using aperture array lithography

Cited by 37 publications

References 17 publications

Porous Polymer Membranes by Hard Templating – A Review

Porous Polymer Membranes by Hard Templating – A Review

Membrane Processing Technology in the Food Industry: Food Processing, Wastewater Treatment, and Effects on Physical, Microbiological, Organoleptic, and Nutritional Properties of Foods

Selective porous gates made from colloidal silica nanoparticles

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