Bacteria and cancer cell pearl chain under dielectrophoresis

Kong, Tian Fook; Tan, Pei Yen; Tay, Benjamin Zikai; Shen, Xiaojun; Marcos, .

doi:10.1002/elps.202000277

Cited by 9 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Second, the addition of LiFePO 4 particles could even increase the trapping efficiency. This is because trapped particles can create additional field inhomogeneous that would increase trapping efficiency by forming so-called pearl chains . Nonetheless, the results would benefit from a further investigation of the particles and their mixture before and after the separation to show which particle sizes are retained in the channel and whether there is a cutoff diameter.…”

Section: Resultsmentioning

confidence: 99%

“…This is because trapped particles can create additional field inhomogeneous that would increase trapping efficiency by forming so-called pearl chains. 54 Nonetheless, the results would benefit from a further investigation of the particles and their mixture before and after the separation to show which particle sizes are retained in the channel and whether there is a cutoff diameter. Also, it needs to be investigated how residuals on the particles (e.g., binder or electrolyte) or changes in particle size due to upstream processes interfere with the DEP behavior of the particles and what space-time yield this method can achieve.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Sorting Lithium-Ion Battery Electrode Materials Using Dielectrophoresis

et al. 2023

View full text Add to dashboard Cite

Lithium-ion batteries (LIBs) are common in everyday life and the demand for their raw materials is increasing. Additionally, spent LIBs should be recycled to achieve a circular economy and supply resources for new LIBs or other products. Especially the recycling of the active material of the electrodes is the focus of current research. Existing approaches for recycling (e.g., pyro-, hydrometallurgy, or flotation) still have their drawbacks, such as the loss of materials, generation of waste, or lack of selectivity. In this study, we test the behavior of commercially available LiFePO4 and two types of graphite microparticles in a dielectrophoretic high-throughput filter. Dielectrophoresis is a volume-dependent electrokinetic force that is commonly used in microfluidics but recently also for applications that focus on enhanced throughput. In our study, graphite particles show significantly higher trapping than LiFePO4 particles. The results indicate that nearly pure fractions of LiFePO4 can be obtained with this technique from a mixture with graphite.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Sorting Lithium-Ion Battery Electrode Materials Using Dielectrophoresis

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Microfluidics involves the examination and control of minute quantities of fluids, typically in the microliter or nanoliter range. This field has gained significant prominence in research due to its diverse applications in areas like biotechnology, pharmaceuticals, diagnostics, lab-on-chip (LOC), separation and isolation of circulating tumor cells, sperm sorting, and bacteria or algae detection [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. The integration of microscale structures on a single chip has revolutionized research across various domains by enabling the swift manipulation, analysis, and distribution of small samples.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Shrink Film Properties for Rapid Microfluidics Lab-on-Chip Fabrication

Kong,

Ang,

Marcos

2024

Micromachines

Self Cite

View full text Add to dashboard Cite

Shrink film is a thin sheet of polystyrene plastic that shrinks to 25–40% of its original size when heated. This study investigated the shrinkage factor of the film at different temperatures and baking times to determine the optimal fabrication recipe for shrink film microfluidic device production. Additionally, this study characterized the properties of shrink film, including minimum possible feature size and cross-section geometries, using manual engraving and the CAMEO 4 automated cutting machine. The optimal shrinkage factor ranged from 1.7 to 2.9 at 150 °C and a baking time of 4 min, producing the ideal size for microfluidic device fabrication. The X- and Y-axes shrank ~2.5 times, while Z-axis thickened by a factor of ~5.8 times. This study achieved a minimum feature size of 200 microns, limited by the collapsing of channel sidewalls when shrunk, leading to blockages in the microchannel. These findings demonstrate the feasibility and versatility of using shrink film as a cost-effective and efficient material for the rapid fabrication of microfluidic devices. The potential applications of this material in various fields such as the medical and biomedical industries, bacteria and algae culture and enumeration are noteworthy.

show abstract

“…There are many techniques for manipulating cells, such as microfluidics [1][2][3], dielectrophoresis [4][5][6], optical tweezers [7,8], optically induced electrokinetics [9], or a combination of several techniques [10,11]. Microfluidic technique needs to design different microchannels for different experiments, which cannot be changed after fabrication.…”

Section: Introductionmentioning

confidence: 99%

Effects of light size and intensity on photoconductive effect-based optically-induced dielectrophoresis for three-dimensional manipulation

Yang¹,

Wang²

2023

Phys. Scr.

View full text Add to dashboard Cite

This study aims to study the effect of light size and intensity on photoconductive effect-based optically-induced dielectrophoresis (ODEP) for three-dimensional manipulation of cells. HL-7702 cells and SMMC-7721 cells in sucrose solution were manipulated three-dimensionally by ODEP. We found that the ODEP force generated by the three-dimensional non-uniform electric field will form a three-dimensional space, and the positive ODEP force will attract the cells near the space into it. When the number of cells is large, the three-dimensional stacking phenomenon will occur, that is, the three-dimensional assembly of cells. When the size of the light spot is similar to that of the cell, the projector with weak light intensity can only manipulate a single cell, while the laser with higher light intensity can carry out cell three-dimensional assembly. When the light intensity is similar, the larger size of light can produce larger a three-dimensional assembly space. So the cell three-dimensional manipulation by ODEP is achieved only when the photoconductive effect induced by the light pattern reaches the required intensity. The three-dimensional manipulation of cells by ODEP is from plane to stereo, and its realization is related to the light size and the photoconductive layer resistance determined by light intensity. And the three-dimensional space of assembling cells is related to the light size and intensity, and the larger and stronger the light, the larger the space.

show abstract

Bacteria and cancer cell pearl chain under dielectrophoresis

Cited by 9 publications

References 20 publications

Sorting Lithium-Ion Battery Electrode Materials Using Dielectrophoresis

Sorting Lithium-Ion Battery Electrode Materials Using Dielectrophoresis

Characterization of Shrink Film Properties for Rapid Microfluidics Lab-on-Chip Fabrication

Effects of light size and intensity on photoconductive effect-based optically-induced dielectrophoresis for three-dimensional manipulation

Contact Info

Product

Resources

About