Simulating orientation and polarization characteristics of dense fibrous tissue by electrostatic spinning of polymeric fibers

Shen, Shing Chuan; Wang, Haili; Qu, Yingjie; Huang, Kuiming; Liu, Guangli; Chen, Zexin; Ma, Canzhen; Shao, Pengfei; Hong, Jin Pyo; Lemaillet, Paul; Dong, Erbao; Xu, Ronald X.

doi:10.1364/boe.10.000571

Cited by 8 publications

(6 citation statements)

References 46 publications

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“…Nowadays, designing and constructing the structures of PLLA materials used for oil–water separation is a widely studied subject. Various methods have been developed to achieve superhydrophobic PLLA materials, such as phase separation, solution-blow spinning, and electrostatic spinning methods. − Gu et al fabricated a biodegradable superhydrophobic PLLA nonwoven fabric via a hierarchical micro/nanoparticles assistant method to separate oil and water driven by gravity. Ye et al synthesized a solution-blow spinning strategy to add SiO 2 -modified PLLA nanofiber membranes with excellent oil–water separation performance.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Poly(l-lactic acid) Membranes with Fish-Scale Hierarchical Microstructures and Their Potential Application in Oil–Water Separation

2021

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In this work, superhydrophobic poly(L-lactic acid) (PLLA) hierarchical membranes exhibiting excellent oil-removal performance, which is of great importance in curbing the oil-pollution environment, were fabricated by a simple solvent-evaporation-induced precipitation method. PLLA membranes with hierarchical micro/ nanostructures (fish scales, fibrous sheets, and petal-like morphology) can be conveniently prepared by adjusting the preparation parameters including PLLA concentration, precipitation temperature, type of solvent and nonsolvent, and the addition of nano-SiO 2 . The results show that the water contact angle of the fish-scale-structured PLLA membrane was 138.6°, revealing that water repellency was significantly improved compared to that of the solvent-casting PLLA membrane (∼72.8°). Moreover, the PLLA/SiO 2 nanocomposite membrane with a dense hierarchical micro/nanostructure had a water contact angle greater than 167.1°, which has great potential in oil−water separation.

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Section: Introductionmentioning

confidence: 99%

Superhydrophobic Poly(l-lactic acid) Membranes with Fish-Scale Hierarchical Microstructures and Their Potential Application in Oil–Water Separation

2021

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Section: Birefringence In a Tissue-mimicking Materialsmentioning

confidence: 99%

“…32 A common material for tissue-mimicking phantoms is polydimethylsiloxane (PDMS) due to its tunability for scattering and absorption. 33,34 PDMS is particularly useful for phantoms that mimic highly stretchable organs, such as the bladder. 29 Our strategy to introduce birefringence in a tissue-mimicking phantom relies on the photoelastic property of PDMS, which varies as a function of the curing ratio and stretch.…”

Section: Choice Of Materialsmentioning

confidence: 99%

Birefringent tissue-mimicking phantom for polarization-sensitive optical coherence tomography imaging

et al. 2022

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. Significance: Tissue birefringence is an important parameter to consider when designing realistic, tissue-mimicking phantoms. Options for suitable birefringent materials that can be used to accurately represent tissue scattering are limited. Aim: To introduce a method of fabricating birefringent tissue phantoms with a commonly used material—polydimethylsiloxane (PDMS)—for imaging with polarization-sensitive optical coherence tomography (PS-OCT). Approach: Stretch-induced birefringence was characterized in PDMS phantoms made with varying curing ratios, and the resulting phantom birefringence values were compared with those of biological tissues. Results: We showed that, with induced birefringence levels up to , PDMS can be used to resemble the birefringence levels in weakly birefringent tissues. We demonstrated the use of PDMS in the development of phantoms to mimic the normal and diseased bladder wall layers, which can be differentiated by their birefringence levels. Conclusions: PDMS allows accurate control of tissue scattering and thickness, and it exhibits controllable birefringent properties. The use of PDMS as a birefringent phantom material can be extended to other birefringence imaging systems beyond PS-OCT and to mimic other organs.

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“…(ⅴ) Electrical conductance: scaffolds should allow the engineered constructs to perform the dynamic functions of the heart [25]. (vi) Anisotropy: scaffolds should have an anisotropic microstructure, which has been shown to promote CM alignment and favor cell differentiation and functionality [26][27][28][29][30]. [48].…”

Section: Overview Of Cardiac Tissue Engineering (Cte)mentioning

confidence: 99%

3D bioprinting in cardiac tissue engineering

Wang¹,

Wang²,

Li³

et al. 2021

Theranostics

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Heart disease is the main cause of death worldwide. Because death of the myocardium is irreversible, it remains a significant clinical challenge to rescue myocardial deficiency. Cardiac tissue engineering (CTE) is a promising strategy for repairing heart defects and offers platforms for studying cardiac tissue. Numerous achievements have been made in CTE in the past decades based on various advanced engineering approaches. 3D bioprinting has attracted much attention due to its ability to integrate multiple cells within printed scaffolds with complex 3D structures, and many advancements in bioprinted CTE have been reported recently. Herein, we review the recent progress in 3D bioprinting for CTE. After a brief overview of CTE with conventional methods, the current 3D printing strategies are discussed. Bioink formulations based on various biomaterials are introduced, and strategies utilizing composite bioinks are further discussed. Moreover, several applications including heart patches, tissue-engineered cardiac muscle, and other bionic structures created via 3D bioprinting are summarized. Finally, we discuss several crucial challenges and present our perspective on 3D bioprinting techniques in the field of CTE.

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Simulating orientation and polarization characteristics of dense fibrous tissue by electrostatic spinning of polymeric fibers

Cited by 8 publications

References 46 publications

Superhydrophobic Poly(l-lactic acid) Membranes with Fish-Scale Hierarchical Microstructures and Their Potential Application in Oil–Water Separation

Superhydrophobic Poly(l-lactic acid) Membranes with Fish-Scale Hierarchical Microstructures and Their Potential Application in Oil–Water Separation

Birefringent tissue-mimicking phantom for polarization-sensitive optical coherence tomography imaging

3D bioprinting in cardiac tissue engineering

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