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Janus nanofibers have attracted much attention in the field of nanofabrication due to their unique structure, with one side having one function and the other side having another function. The ease and reliability of preparing Janus structures is a major challenge in this field. Here are several methods for preparing Janus nanofibers:
Parallel electrospinning: This is a method for preparing Janus fibers through side-by-side electrospinning technology, which can create two-sided structures with different functions
Single-sided deposition: Using the characteristics of the precipitation reaction of the compound on the surface of the material, one or more "encapsulation" or "coating" is formed on the surface of the material to achieve chemical asymmetric modification of the membrane and obtain a Janus membrane with different wettability
Self-initiated photografting technology: This technology can be used to graft hydrophobic polystyrene to one side of the carbon nanotube, and then graft hydrophilic polymer to the other side to successfully prepare a Janus membrane
Diffusion-controlled chemical precipitation method: This method can be used to prepare hydroxyapatite mineralized polyvinylidene fluoride Janus membranes to achieve the construction of a wettability gradient in the thickness direction
Electrospinning technology shows great potential in the field of drug delivery because it can prepare nanofibers with extremely high specific surface area and good porosity:
Drug delivery: Electrospun nanofibers have been widely used in the field of drug delivery due to their unique structure and properties. By controlling the diameter and shape of the fiber, efficient drug loading and sustained release can be achieved, improving the bioavailability of drugs and reducing toxic side effects
Tissue engineering: Nanofibers prepared by electrospinning technology can simulate the natural extracellular matrix structure, provide a scaffold for cell adhesion, and promote tissue regeneration and healing
Environmental sensing: Electrospun nanofibers are also used in the field of environmental sensing. Through their nanoscale diameter and porous structure, the performance of sensors can be improved
Energy and optoelectronics: Electrospun nanofibers are also used in energy, optoelectronics, food engineering and other fields due to their high specific surface area and porosity
Theoretical model research: The theoretical model research of electrospinning needs to be further deepened to solve the non-Newtonian flow Problems such as body flow and the formation of Taylor cones
Environmentally friendly nanofibers: With the increasing demand for environmentally friendly nanofibers, melt electrospinning technology will be more studied and applied due to its non-toxic and environmentally friendly characteristics
Preparation of ordered nanofibers: The ultimate goal of electrospinning technology is to prepare continuous and ordered nanofibers and achieve large-scale production and commercialization
Improving the strength of nanofibers: Improving the strength of nanofibers so that they can be used alone will be the focus of the development of electrospinning technology
In summary, the preparation of Janus nanofibers and the application of electrospinning technology are important research directions in the fields of materials science and nanotechnology. They show broad application prospects in many fields such as drug delivery and tissue engineering. With the continuous advancement of technology, these fields are expected to make more breakthroughs in the future.
Electrospinning Nanofibers Article Source:
https://kns.cnki.net/kcms2/article/abstract?v=2iaLu-A-XVlft9yAytzb0khIC5OGSuE-3bSh4cek6ldkKDgWtJ_1-UtLqKU_aerBD6LiMLo9qHLkyP1PNMKDjmh6GB4pxldBhH2oLsacGSOlSWE18yh6b2tvjlqhpw8w3jXx5FibSQWiCbIzoAyK2M4f0lJFcKELrUX_LzJLvk4iQ3IrNJFe14erPQ50ViSL&uniplatform=NZKPT
