Nanoceramics for blood-borne virus removal

Zhao, Yufeng; Sugiyama, Sadahiro; Miller, Thomas; Miao, Xigeng

doi:10.1586/17434440.5.3.395

Cited by 17 publications

(9 citation statements)

References 69 publications

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“…The range of applications for porous ceramics span across several fields based on the porosity features mentioned above. In addition to filters and membranes for separation processes and engineered thermal and acoustic insulation, porous ceramics are gaining attention in the medical field to encapsulate and release substances in the human body, grow cells and tissues in tailored scaffolds, or act as microfiltration membranes for viruses . The other growing applications are in catalysis, chemical sensors, and electrodes for fuel cells and lithium air batteries and other dielectrical and optical applications …”

Section: Macroporous Ceramic Structures Enabled By Colloidal Processingmentioning

confidence: 99%

Colloidal processing: enabling complex shaped ceramics with unique multiscale structures

et al. 2017

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Colloidal processing of fine ceramic powders enables the production of complex shaped ceramics with unique micro and macro structures which are not possible to produce via conventional dry processing routes. Because of this enhanced structural control and shaping capabilities, colloidal processing has been exploited to produce ceramic components with ever increasing complexity and functionalities. In this review, we revisit some of the research efforts on this topic to highlight its relevance and growing importance for the advanced manufacturing of functional ceramics. Selected examples of colloidal systems with increasing level of complexity are discussed to showcase the wide range of structures that can be generated through wet processing approaches. The historical development and background knowledge pertaining to colloids and surface interactions is first briefly reviewed. The major colloidal shape forming and additive manufacturing processes that utilize colloidal pastes and inks are then reviewed, highlighting the control of suspension rheology needed in these techniques. Next, methodologies that combine suspended particles with a pore‐forming phase are discussed as a means to produce porous ceramic materials. Further control over the interactions between anisotropic particles and their alignment in suspensions can be gained via externally applied fields (such as magnetic) to produce texturally aligned green bodies. This leads to bioinspired ceramics that can programmably morph into complex shaped objects upon sintering. Hierarchical porous structures with high mechanical efficiency are also shown as an example of the multiscale designs that can be generated through advanced colloidal processing. As drying of ceramic bodies is an inevitable consequence of wet colloidal processing, the current understanding of this critical processing step is reviewed. Finally, the gaps in knowledge in these fields are discussed to provide our perspective on where the field may support advances in ceramics in the future.

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Section: Macroporous Ceramic Structures Enabled By Colloidal Processingmentioning

confidence: 99%

Colloidal processing: enabling complex shaped ceramics with unique multiscale structures

et al. 2017

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“…Based on the recent applications and uses of membrane and depth filters for removal of bacteria and viruses from water and blood systems, it is important to stress that the prepared nanoparticles posses the potentials to be applied in this areas. Because of the small pore size of the particles compared to the sizes of these viruses; Severe acute respiratory syndrome (SARS) corona virus 80 -120 nm in size, HIV virus, 100 -120 nm in diameter, Avian flu, 80 -120 nm in size, HBV 40 nm in size, mimivirus with 270 nm in diameter while some filoviruses having length up to 1400 nm with the capsid around 80 nm as described by (Zhao, Sugiyama, Miller and Miao (2008). Since membrane filtration is based on pore size of the membrane particles, thus particles larger than the pores will not be able to penetrate the pores and are thus separated.…”

Section: Sem Micrographs Of 3/6h/h 3 Po 4 Hydrolyzed Samplesmentioning

confidence: 99%

Synthesis and Characterization of Cellulose Nanoparticles and Its Derivatives using a Combination of Spectro-Analytical Techniques

Azeh¹

2017

IJNME

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Nanoparticles from different cellulosic sources were prepared via hydrolysis using three different acids. Cellulose, Methylcellulose (MC), Cellulose acetate (CA), Propylcellulose (PC) and Ethylcellulose (EC) was hydrolyzed using pulp-to-liquid ratio of 4.57:1 under 1/3/6 h hydrolysis. Different particles ranging from 70 -1580 nm were obtained. The maximum yield (55.3 %) was attained at 3 h hydrolysis with H 3 PO 4 acid, and particle size decreased with increasing reaction time as revealed by SEM and fiber length histograms and BET. Most fibers had pore area around 0.41 µm2. Nanoparticles obtained from all cellulose derivative used had low crystallinity index value attributed to substituent groups. The TGA showed that the prepared nanoparticles have thermal stability at T95 and T90 (5 and 10 wt % mass loss) in the temperature range of 297.51-411.09 o C and 315-508.55 o C with Tmax, 375-525 o C respectively. An extended temperature range was observed for some samples over the whole temperature range with only 50 wt % mass loss of the nanomaterials. FT-IR spectroscopy was employed to study the characteristic functionalities found in crystalline cellulose. BET analysis of samples gave evidences of the nanoparticles possessing large surface area of between 105.698 m2/g and 250.570 m2/g. The Langmuir surface area was 10336.157 m2/g, while the pore size and pore volume, ranged from 1.324 -9.237 nm and 0.01427 -0.07939 cm3/g respectively. The three different acids used gave various yields of nanocrystals with H 3 PO 4 having the highest yield of 55.3 %, followed by HCl, (34.8 %) while H 2 SO 4 has the lowest yield of 30 %. All of these yields were obtained under the same reaction conditions during 3 h hydrolysis. All samples hydrolyzed for 6 h gave low yield, 28.2 % of nanoparticles. The 3 h hydrolysis was the optimum reaction time for the generation of nanoparticles using 4.57 mL/g solid-liquid ratio.

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“…Taking advantages of the highly porous fibrous nanostructures, ceramic nanofiber membrane can be used for filter and separator applications [128,[156][157][158][159]. separation layer on a porous substrate using large titanate nanofibers and smaller boehmite nanofibers [157].…”

Section: Filters and Separatorsmentioning

confidence: 99%

Electrospinning of ceramic nanofibers: Fabrication, assembly and applications

Wu¹,

Pan²,

Lin³

et al. 2012

J Adv Ceram

252

108

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This paper provides a brief review of current research activities that focus on the synthesis and controlled assembly of inorganic nano bers by electrospinning, their electrical, optical and magnetic properties, as well as their applications in various areas including sensors, catalysts, batteries, filters and separators. We begin with a brief introduction to electrospinning technology and a brief method to produce ceramic nanofibers from electrospinning. We then discuss approaches to the controlled assembly and patterning of electrospun ceramic nanofibers. We continue with a highlight of some recent applications enabled by electrospun ceramic nano bers, with a focus on the physical properties of functional ceramic nanofibers as well as their applications in energy and environmental technologies. In the end, we conclude this review with some perspectives on the future directions and implications for this new class of functional nanomaterials. It is expected that this review paper can help the readers quickly become acquainted with the basic principles and particularly the experimental procedure for preparing and assembly of 1D ceramic nanofiber and its arrays.

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Nanoceramics for blood-borne virus removal

Cited by 17 publications

References 69 publications

Colloidal processing: enabling complex shaped ceramics with unique multiscale structures

Colloidal processing: enabling complex shaped ceramics with unique multiscale structures

Synthesis and Characterization of Cellulose Nanoparticles and Its Derivatives using a Combination of Spectro-Analytical Techniques

Electrospinning of ceramic nanofibers: Fabrication, assembly and applications

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