Flexible hollow nanofibers: Novel one-pot electrospinning construction, structure and tunable luminescence–electricity–magnetism trifunctionality

Liu, Yawen; Ma, Qianli; Yang, Ming; Dong, Xiangting; Yang, Ying; Wang, Jinxian; Yu, Wensheng; Liu, Guixia

doi:10.1016/j.cej.2015.09.030

Cited by 70 publications

(22 citation statements)

References 66 publications

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“…More recently, researchers have developed two-fluid side-by-side and coaxial electrospinning processes (resulting in Janus or core/shell fibers) [10][11][12][13][14][15][16], three-fluid triaxial electrospinning, and other more complicated experiments [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Tunable zero-order drug delivery systems created by modified triaxial electrospinning

Liu

Yang

et al. 2019

Chemical Engineering Journal

137

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ucture, and in turn its functional performance, is of crucial importance for potential applications. In this study, a new modified triaxial electrospinning process was successfully developed to allow us to precisely tune drug release from nanoscale formulations. In this process, we used two un-electrospinnable liquids as the outer and middle working fluids, with only the core solution being individually electrospinnable into fibers. The outer liquid comprised a mixture of solvents, while the middle fluid was a dilute solution of cellulose acetate (CA). The core fluid was an electrospinnable co-dissolving solution of ferulic acid (FA) and gliadin. By processing these in triaxial electrospinning, we were able to create FA-gliadin fibers coated with a thin but even and continuous coating of CA. The thickness of the CA coating could be precisely varied by adjusting the flow rate of the middle working fluid. The resultant nanofibers have linear and cylindrical morphologies with clear core-shell structures. X-ray diffraction and IR spectroscopy data verified that the fibers comprised amorphous solid dispersions, with intermolecular interactions existing between FA and gliadin. The CA coating eliminated the initial burst release seen with uncoated FA-gliadin fibers, and also led to close to zero-order release profiles which could be incrementally adjusted by varying the thickness of the coating. New process-nanostructure-performance relationships are therefore revealed, and the advanced triaxial electrospinning approach reported in this work has great potential for developing new kinds of functional nanomaterials.

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Section: Introductionmentioning

confidence: 99%

Tunable zero-order drug delivery systems created by modified triaxial electrospinning

Liu

Yang

et al. 2019

Chemical Engineering Journal

137

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“…Dope B was slowly poured into dope A and then stirred in an ice-water bath for 3.5 h. Finally, the reaction system was kept at 0°C for 36 h to obtain dope II, and Table 2 summed up the actual components of spinning dope II (S b ). According to the references [48][49][50], when Eu(BA) 3 phen was mixed with PMMA and used as the spinning dope to prepare the insulating-red luminescent part of the Janus nanoribbon, the optimum doping percent of Eu(BA) 3 phen in PMMA was 15%, and as for the Tb(BA) 3 phen/PMMA nanofibers which used as the down layer of the BJP, the optimal doping ratio of Tb(BA) 3 phen in PMMA was also 15%. In a typical procedure, 0.075 g Eu(BA) 3 phen and 0.5 g PMMA were dissolved in a mixed solvent of 0.8 g DMF and 7.2 g CHCl 3 under magnetic stirring for 12 h, and this mixture was used as spinning dopes III (S c ).…”

Section: Construction Of Spinning Dopesmentioning

confidence: 99%

2D double aeolotropic conductive Janus pellicle with multi-functionality then derived 3D dual-wall Janus-type tube

Qi¹,

Do²,

Xie³

et al. 2020

Express Polym. Lett.

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bilayer Janus pellicle (denoted as BJP) of concurrent double aeolotropic electrical conduction, superparamagnetism and luminescence is designed and constructed via electrospinning by using one-dimensional (1D) nanofibers and Janus nanoribbons as constructive units. The BJP comprises top-down two layers tightly bonded together. The top layer is a left-right structured Janus film which consists of Janus nanoribbons array as left and right side, and further, arrangement orientations of Janus nanoribbons in the two sides are perpendicular, leading to double aeolotropic conduction, and the conduction ratio reaches 10 8 times. The down layer is a non-array luminescent film made of nanofibers. Under the excitation by 291 and 294 nm light, red luminescence of the left side of the top layer and green luminescence of down layer in BJP are respectively achieved. The maximum saturation magnetization of the top layer can reach 21.45 (emu/g). By rolling the 2D BJP into the tube respectively with the ways of rolling from left to right or from up to down, three-dimensional (3D) dual-wall Janus-type tube with the Janus-type tube as outer or inner and the homogeneous tube as inner or outer is obtained.

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“…At present, multi-functional nanomaterials [13,14] have attracted extensive attention from researchers. Nanomaterials [15][16][17][18][19][20][21][22][23] with a single function such as magnetic, [24] conductive [25] or fluorescent characteristics [26,27] are developing towards multifunctional nanomaterids such as with magnetismfluorescence, [28][29][30] fluorescence-conduction, [31,32] conduction-magnetism [33,34] dual-functionality and fluorescence-conductionmagnetism [35,36] tri-functionality.…”

Section: Introductionmentioning

confidence: 99%

Assembling 1D and Janus Nanobelts into 2D Aeolotropic Conductive Janus Membranes and 3D Double‐Walled Janus Tubes

Xie

et al. 2019

ChemNanoMat

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Two‐dimensional (2D) stratified Janus membranes (denoted as SJM) with double aeolotropic electrical conduction and simultaneous magnetism and fluorescence have been designed and constructed via electrospinning by using one‐dimensional (1D) nanobelts and Janus nanobelts as building blocks. The SJM is composed of two layers tightly bonded together. The top layer is a left‐right structured Janus membrane, the left part and right part possess aeolotropic electrical conduction, and the conductive directions are vertical, leading to double aeolotropic conduction. Moreover, red and green fluorescence in the two parts occurs under UV irradiation. The bottom layer is a non‐array magnetic membrane. By rolling the 2D SJM into a tube, either from left to right or top to bottom, three‐dimensional (3D) double‐walled Janus tubes with the Janus tube and the isotropic tube on the exterior and interior of the tube are obtained. The novel 3D double‐walled Janus tubes exhibit the same excellent performance as the 2D SJM. Thus, the structural transition from 1D nanobelts and Janus nanobelts utilized as building units to 2D double aeolotropic conductive Janus membrane then to 3D Janus tube is successfully realized.

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Flexible hollow nanofibers: Novel one-pot electrospinning construction, structure and tunable luminescence–electricity–magnetism trifunctionality

Cited by 70 publications

References 66 publications

Tunable zero-order drug delivery systems created by modified triaxial electrospinning

Tunable zero-order drug delivery systems created by modified triaxial electrospinning

2D double aeolotropic conductive Janus pellicle with multi-functionality then derived 3D dual-wall Janus-type tube

Assembling 1D and Janus Nanobelts into 2D Aeolotropic Conductive Janus Membranes and 3D Double‐Walled Janus Tubes

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