Morphology Of Nanofibers Research Articles

Fabrication of electrospun nanofiber from a blend of PVC and PHB

Abstract In this work, the fabrication process of electrospun nanofibers from a blend of polyhydroxy butyrate (PHB) and polyvinyl chloride (PVC) has been investigated. PVC/PHB nanofibers have been fabricated from solutions using different PVC and PHB ratios. The influence of technical parameters of the electrospinning process on the fabrication, morphology, and diameter of nanofibers has been evaluated. The chemical structure and thermal properties of PVC/PHB have been studied. The results show that the diameter of PVC/PHB nanofibers increases as the PHB content increases. In addition, the optimal technical parameters of the electrospinning process for each PVC and PHB ratio are different. Infrared spectroscopy analysis revealed an enhancement of the crystalline phase of the polymer composite with increasing PHB content. The thermal properties of PVC/PHB nanofibers were evaluated through differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The change in PHB ratios leads to a change in the glass transition temperature of PVC/PHB nanofibers. The thermal degradation process of PVC/PHB includes two steps. Increasing the PHB content leads to an enhancement in the mechanical strength of PVC/PHB nanofiber mats; however, it also results in a reduction in tensile elongation. Based on the results of structural, morphological, interaction analysis, and mechanical properties of PVC/PHB nanofibers, this study contributes to the optimization of the fabrication of nanofibers from PVC and PHB. PVC/PHB nanofibers have the potential to be used for air filtration applications.

Efficiency of Prevention of Biofilm Formation by Modified Polyurethane Nanofibers in Different Bacterial Strains

In tissue engineering biofilm formation is a major concern where bacteria form biofilms over the implants, devices or tissue scaffolds. To prevent this biofilm formation an attempt has been made in this study by using a modified nanofiber fabricated from a polymer incorporated with an antibacterial agent. Polyurethane (PU) nanofibers provide a high surface area for efficient substance delivery within a biological surface. In this paper β-cyclodextrin (CD) incorporated PU nanofibers were fabricated by electrospinning. CD was added to impart hydrophilicity to the nanofiber mat. For the antibacterial activity silver nanoparticles (Ag NPs) have been used. In this study Ag NPs have been incorporated in the composite scaffolds by two methods, viz, physical adsorption and hydrothermal adsorption. Scanning electron microscopy showed the smooth and bead-free morphology of nanofibers. The contact angle analysis showed the lowered contact angle in case of nanofibers containing CD and Ag NPs which confirmed the increased hydrophilicity by CD. The Ag release assay showed the different release profiles in two types of composites. Ag was released slowly in case of the composite where Ag had adsorbed firmly to the nanofibers as compared to the composite where Ag was adsorbed loosely. The disc diffusion assay showed the growth inhibition of different bacterial gram-positive and gram-negative strains by the composite scaffolds. The in-vitro cell viability assay showed the cells were viable on these composites and these were usable for biological applications. This study suggests a new way of biofilm prevention using PU nanofibers.

Nanoclay-Doped Electrospun Nanofibers for Tissue Engineering: Investigation on the Structural Modifications in Physiological Environment.

Clay minerals are nanomaterials that have recently been recognized as enabling excipients that can promote cell adhesion, proliferation, and differentiation. When nanoclays are loaded in a 3D polymeric nanostructure, the cell-substrate interaction is enhanced, and other bioactive properties are optimized. In this study, hectorite (HEC)- and montmorillonite (MMT)-doped polymeric scaffolds were explored for the treatment of deep and chronic skin lesions. Scaffolds were manufactured by means of electrospinning and then crosslinked by heating. Physicochemical analyses were correlated with in vitro biopharmaceutical characterization to predict the in vivo fate of the clay-doped scaffolds. The addition of MMT or HEC to the polymeric scaffold framework modifies the surface arrangement and, consequently, the potential of the scaffolds to interact with biological proteins. The presence of nanoclays alters the nanofiber morphology and size, and MMT doping increases wettability and protein adhesion. This has an impact on fibroblast behavior in a shorter time since scaffold stiffness facilitates cell adhesion and cell proliferation. MMT proved to perform better than HEC, and this could be related to its higher hydrophilicity and protein adhesion.

Broad-wave reflection of polymer-stabilised cholesterol liquid crystal with nanofibers doped magnetic nanoparticles

ABSTRACT In this study, the polymer-stabilised cholesterol-based liquid crystal (PSCLC) films with broad-wave reflection were prepared via PVA nanofibers as carriers loaded with Fe3O4 nanoparticles. Fe3O4 nanoparticles have absorption properties in the UV region. When UV light is irradiated along the thickness of the liquid crystal cell, the resulting gradient distribution of UV light intensity induces a gradient distribution of spacing and thus a broad-wave reflection. Specifically, the effects of nanoparticles content loaded in nanofibers, magnetic field strength, polymerisation time and temperature, UV light intensity and polymerised monomer content were studied. The result shows that the proper contents of Fe3O4 nanoparticles and the polymerisation conditions have favourable impacts on the broad-wave reflection of PSCLC films. To clarify the mechanism of formed broad-wave reflection, the morphology of nanofibers was observed by scanning electron microscopy (SEM). The modification of nanoparticles was collected by transmission electron microscopy (TEM) and infrared spectroscopy. The texture of PSCLC films was observed by POM. The broad-wave reflection were measured by UV-Vis spectrophotometer. This strategy broadens the broad-wave reflection of PSCLC films from 300 nm to 476 nm increasing its application potential in UV shielding devices, and infrared thermal control devices.

Halogenated Nonfused Ring Electron Acceptor for Organic Solar Cells with a Record Efficiency of over 17.

Three nonfused ring electron acceptors (NFREAs), namely, 3TT-C2-F, 3TT-C2-Cl, and 3TT-C2, are purposefully designed and synthesized with the concept of halogenation. The incorporation of F or/and Cl atoms into the molecular structure (3TT-C2-F and 3TT-C2-Cl) enhances the π-π stacking, improves electron mobility, and regulates the nanofiber morphology of blend films, thus facilitating the exciton dissociation and charge transport. In particular, blend films based on D18:3TT-C2-F demonstrate a high charge mobility, an extended exciton diffusion distance, and a well-formed nanofiber network. These factors contribute to devices with a remarkable power conversion efficiency of 17.19%, surpassing that of 3TT-C2-Cl (16.17%) and 3TT-C2 (15.42%). To the best of knowledge, this represents the highest efficiency achieved in NFREA-based devices up to now. These results highlight the potential of halogenation in NFREAs as a promising approach to enhance the performance of organic solar cells.

Porous Nb2O5 Nanofibers Prepared via Reactive Needle-Less Electrospinning for Application in Lithium–Sulfur Batteries

This contribution describes the preparation, coupled with detailed characterization, of Nb2O5 nanofibers and their application in lithium–sulfur batteries for the improvement of electrochemical performance. The utilization of reactive needle-less electrospinning allowed us to obtain, in a single step, amorphous pre-ceramic composite PAN/Nb2O5 fibers, which were transformed into porous ceramic Nb2O5 nanofibers via calcination. Thermogravimetric studies defined that calcination at 600 °C results in crystalline ceramic fibers without carbon residues. The fibrous morphology and mean diameter (614 ± 100 nm) of the ceramic nanofibers were analyzed via scanning and transmission electron microscopy. A surface area of 7.472 m2/g was determined through nitrogen adsorption measurements, while a combination of X-ray diffraction and Raman spectroscopy was used to show the crystallinity and composition of the fibers after calcination—single T-phase Nb2O5. Its performance in the cathode of lithium–sulfur batteries was defined through electrochemical tests, and the obtained results were compared to a similar blank electrode. The initial discharge capacity of 0.5 C reached a value of 570 mAh∙g−1, while the reversible capacity of 406 mAh∙g−1 was retained after 200 cycles, representing a capacity retention of 71.3%. The presence of Nb2O5 nanofibers in the carbon cathode inhibits the shuttle effect through polysulphide confinement, which originates from porosity and chemical trapping.

Preparation and characterization of edible pullulan/pectin nanofiber substrates and their digestion in simulated gastric and intestinal fluids

This article utilizes two ingestible substrates, pullulan and pectin, to fabricate nanofiber membranes by means of electrospinning technology, and assessed their digestion characteristics in simulated gastrointestinal fluids. The physicochemical properties of pullulan/pectin spinning solution and the effects of electrospinning process parameters on the diameter and morphology of pullulan/pectin nanofibers were investigated. Scanning electron microscope indicates that the best electrospinning process parameters were obtained as spinning voltage: 20 kV, needle-collector distance: 15 cm, propulsion speed: 0.6 mL/h and needle inner diameter: 0.41 mm. Moreover, at a pullulan/pectin volume ratio of 8:2, the nanofiber morphology exhibited optimal characteristics, featuring an average fiber diameter of 369.45 ± 42.41 nm. Fourier transform infrared spectroscopy, X-ray diffraction, and thermal analysis indicates the formation of strong hydrogen bonds between pullulan and pectin. The mechanical performance tests demonstrated that, with a volume ratio of 8:2 for pullulan and pectin, the nanofiber exhibited a tensile strength of 1196.86 ± 51.87 cN and an elongation at break of 80.26 ± 3.6%, indicating favorable capacity for elongation and deformation. Furthermore, the in vitro degradability test indicates that pullulan/pectin nanofibers with a volume ratio of 8:2 were decomposed by specific enzymes in intestinal fluid. Therefore, ingestible pullulan/pectin nanofiber substrates have shown certain development potential in the field of targeted drug or bioactive delivery.

Designing Cardin-Motif Peptide and Heparin-Based Multicomponent Advanced Bioactive Hydrogel Scaffolds to Control Cellular Behavior.

Recently, peptide and sugar-based multicomponent systems have gained much interest in attaining the sophisticated structure and biofunctional complexity of the extracellular matrix (ECM). To this direction, we have designed for the first time a biologically relevant minimalist Cardin-motif peptide capable of binding ECM-derived glycosaminoglycans. Herein, we explored Cardin-motif peptide and heparin-based biomolecular matrix by employing simple noncovalent interactions at the molecular level. Interestingly, this peptide was inadequate to induce hydrogelation at ambient pH due to the presence of basic amino acids. However, addition of heparin successfully triggered its gelation at physiological pH following favorable electrostatic interactions with heparin. Importantly, the newly developed scaffolds displayed tunable nanofibrous morphology and superior mechanical properties as controlled simply by the differential mixing ratio of both biomolecular entities. Additionally, these composite scaffolds could closely mimic the complexity of ECM as they demonstrated superior biocompatibility and enhanced growth and proliferation of neural cells as compared to the peptide scaffold.

Bead-like flexible ZIF-67-derived Co@Carbon composite nanofibre mat for wideband microwave absorption in C-band

The lightweight and wideband microwave attenuation performance with low-frequency compatibility, has always been desired for advanced microwave absorbing materials. However, most of the current solutions for low-frequency absorption rely on magnetic materials, which is limited by the high-density and narrow absorption bandwidth. Herein, we present a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres (Co@CNFs) with bead-like (cubic Co particles embedded in carbon nanofibres) morphology. The continuous and fibrous carbon nanofibres template provides wideband microwave attenuation capacity. And the inserted MOF-derived Co additives further improve the low-frequency absorption performance by inducing magnetic losses, rich interfaces, and enhanced conductivity. The optimized Co@CNFs sample, with a filler loading of only 7.5 wt %, offers the effective absorption bandwidth (EAB) of 3.84 GHz (4.16–8.00 GHz) within C-band at 6.63 mm. At an alternative sample thickness of 2.90 mm, the EAB reaches 6.42 GHz. In addition, the nanofibre mat also demonstrates excellent flexibility according to a 500-time 180° bending test. Furthermore, the broadband absorption matching formula based on the quarter wavelength (λ/4) cancellation theory was also optimized by containing permeability part, which could be served as the guidance for designing lightweight and broadband microwave attenuation fibrous materials that are compatible with low frequency absorption.

Assessment of the Tribological Performance of Electrospun Lignin Nanofibrous Web-Thickened Bio-Based Greases in a Nanotribometer.

The tribological performance of novel bio-based lubricating greases thickened with electrospun lignin nanostructures was investigated in a nanotribometer using a steel-steel ball-on-disc configuration. The impact of electrospun nanofibrous network morphology on friction and wear is explored in this work. Different lignin nanostructures were obtained with electrospinning using ethylcellulose or PVP as co-spinning polymers and subsequently used as thickeners in castor oil at concentrations of 10-30% wt. Friction and wear generally increased with thickener concentration. However, friction and wear decreased when using homogeneous bead-free nanofiber mats (with higher fiber diameter and lower porosity) rather than nanostructures dominated by the presence of particles or beaded fibers, which was favored by reducing the lignin:co-spinning polymer ratio.

Nanofibrous Polythiophene-SnO2 composite Films: A novel approach for Low-Temperature NO2 sensing

The SnO2-incorporated interconnected nanofibrous Polythiophene (Sn-INPTh) composite thin film was successfully synthesized using a simple chemical bath deposition method. The film was systematically studied for its NO2 gas sensing application. The chemical bonding, surface morphology, and optical properties were investigated using FT-IR, FE-SEM, EDAX, AFM, and UV–Visible spectroscopy. The effects of SnO2 incorporation on the physicochemical and NO2 sensing properties of the Sn-INPTh thin films were examined. The surface morphological study revealed the nanofibrous Polythiophene morphology, which remained intact after the incorporation of SnO2. The investigation of the chemical bonding nature clearly indicated the characteristic IR absorption bands of Polythiophene, along with the emergence of additional bands corresponding to the SnO2 nanoparticles. The Sn-INPTh thin film gas sensor demonstrated the highest selectivity for NO2 among the various oxidizing and reducing gases (NH3, SO2, H2S, NO2, CO, LPG) tested at a low working temperature of 40 ± 2˚C. All of the Sn-INPTh composite thin films exhibited enhanced NO2 sensing performance, with the highest sensitivity of 81.5% and the shortest response time of 22.66 s observed for the optimized Sn-INPTh composite thin films.

The impact of polymer mixture composition on the properties of electrospun membranes for drug delivery applications

Orally dispersible films (ODFs) prepared by an electrospinning are a novel type of pharmaceutical formulation. This dosage form has the potential to be beneficial for small children and the elderly, who can have problems with administration of classical tablets due to the increased risk of choking and difficulty with swallowing. Due to the highly porous nanofiber morphology, the ODFs examined in this study achieve rapid disintegration into drug microparticles when in contact with saliva. The suspension is then easier to swallow. In this study, we focus on the impact of film composition (polymer matrix composition) on the properties of electrospun membranes. In particular, we prepared ODFs composed of a mixture of PEG 100 000 with HPMC E5 and PVP k90 with HPMC E5. We found significant differences in the structure of electrospinned membranes, where samples containing PEG 100 000 and HPMC E5 exhibited much narrower distribution of fibers. Furthermore, nanofibers containing PVP k90 exhibit a faster disintegration rate, while dissolution of the drug was faster in the case of PEG 100 000 containing ODFs. The improvement was caused by both the structure and composition of the membranes.

Fabrication and property analysis of MnxZn1-xFe2O4 nanofibers and homogeneous-fiber-reinforced MnZn ferrite materials

MnxZn1-xFe2O4 (x = 0.3, 0.5, 0.7) nanofibers were prepared by the solvothermal reaction and used as reinforcement phase to synthesize the corresponding three types of homogeneous-fiber-reinforced MnZn ferrite materials. The dependence of composition, morphology, size, and property of MnxZn1-xFe2O4 nanofibers on the Mn content was studied. Results demonstrated that MnxZn1-xFe2O4 nanofibers had uniform 1D fibrous structure, smooth surface, and large aspect ratio, which varied in sizes and arrangements by controlling the ratios of Mn2+ to Zn2+. The lattice parameter gradually decreased and the saturation magnetization (Ms) increased with the Mn content of MnxZn1-xFe2O4 nanofibers increasing from x = 0.3 to 0.7. Meanwhile, the effects of diverse MnxZn1-xFe2O4 nanofibers on the structures, magnetic and mechanical properties such as magnetic hysteresis loop, effective permeability, magnetic loss, and Vickers hardness of MnZn ferrite materials were also investigated systematically. Results indicated that the homogeneous-fiber-reinforced MnZn ferrite materials had denser crystal structure, higher strength, and stability, sothat they possessed excellent magnetic and mechanical properties of high Ms, high permeability, low loss, and high hardness. When the Mn content of MnxZn1-xFe2O4 nanofibers increased from x = 0.3 to 0.7, the homogeneous-fiber-reinforced MnZn ferrite materials exhibited better magnetic and mechanical properties due to the finer size and superior property of the corresponding MnxZn1-xFe2O4 nanofibers.

Reactive Cell Electrospinning of Anisotropically Aligned and Bilayer Hydrogel Nanofiber Networks.

Structured hydrogels that incorporate aligned nanofibrous morphologies have been demonstrated to better replicate the structures of native extracellular matrices and thus their function in guiding cell responses. However, current techniques for nanofiber fabrication are limited in their ability to create hydrogel scaffolds with tunable directional alignments and cell types/densities, as required to reproduce more complex native tissue structures. Herein, we leverage a reactive cell electrospinning technique based on the dynamic covalent cross-linking of poly(ethylene glycol methacrylate (POEGMA) precursor polymers to fabricate aligned hydrogel nanofibers that can be directly loaded with cells during the electrospinning process. The scaffolds were found to support high C2C12 myoblast viabilities greater than 85% over 14 days, with changes in the electrospinning collector allowing for the single-step fabrication of nonaligned, aligned, or cross-aligned nanofibrous networks. Cell aspect ratios on aligned scaffolds were found on average to be 27% higher compared to those on nonaligned scaffolds; furthermore, cell-loaded bilayer scaffolds with perpendicular fiber alignments showed evidence of enabling localized directional cell responses to individual layer fiber directions while avoiding delamination between the layers. This fabrication approach thus offers potential for better mimicking the structure and thus function of aligned and multilayered tissues (e.g., smooth muscle, neural, or tendon tissues).

Bifunctional TiO2−x nanofibers enhanced gel polymer electrolyte for high performance lithium metal batteries

Exploration of advanced gel polymer electrolytes (GPEs) represents a viable strategy for mitigating dendritic lithium (Li) growth, which is crucial in ensuring the safe operation of high energy density Li metal batteries (LMBs). Despite this, the application of GPEs is still hindered by inadequate ionic conductivity, low Li+ transference number, and subpar physicochemical properties. Herein, TiO2−x nanofibers (NF) with oxygen vacancy defects were synthesized by a one-step process as inorganic fillers to enhance the thermal/mechanical/ionic-transportation performances of composite GPEs. Various characterizations and theoretical calculations reveal that the oxygen vacancies on the surface of TiO2−x NF accelerate the dissociation of LiPF6, promote the rapid transfer of free Li+, and influence the formation of LiF-enriched solid electrolyte interphase. Consequently, the composite GPEs demonstrate enhanced ionic conductivity (1.90 mS cm−1 at room temperature), higher lithium-ion transference number (0.70), wider electrochemical stability window (5.50 V), superior mechanical strength, excellent thermal stability (210 °C), and improved compatibility with lithium, resulting in superior cycling stability and rate performance in both Li||Li, Li||LiFePO4, and Li||LiNi0.8Co0.1Mn0.1O2 cells. Overall, the synergistic influence of nanofiber morphology and enriched oxygen vacancy structure of fillers on electrochemical properties of composite GPEs is comprehensively investigated, thus, it is anticipated to shed new light on designing high-performance GPEs LMBs.

Preparation of Pr, Co co-doped BaFeO3–δ-based nanofiber cathode materials by electrospinning

The solid oxide fuel cell (SOFC) is considered promising technology that directly converts the chemical energy stored in the fuel into electrical energy. However, the undesired oxygen reduction reaction (ORR) activity and stability of the cathode have hindered its commercialization. In this work, a series of Pr-doped PrxBa1-xFe0.8Co0.2O3-δ (x = 0∼0.3) nanofibers and powder cathode materials with excellent performance are synthesized by electrospinning and sol-gel methods, respectively. The influence of different Pr doping amounts on the nanofiber morphology, phase structure, thermal stability and electrochemical properties of BaFe0.8Co0.2O3-δ (BFCO) nanofibers cathode materials were investigated. Compared the microstructures and electrochemical performance of Pr0.1Ba0.9Fe0.8Co0.2O3-δ nanofiber and powders prepared by different methods. The partial substitution of Pr for Ba (doping of a few of Pr) can effectively eliminate the BFCO hexagonal phase and induce the transformation to the cubic phase. The content of oxygen vacancies was significantly increased as well as the cathode ORR activity was well enhanced. In addition, we demonstrated by DRT that oxygen adsorption is the rate-limiting step at the cathode. Among them, Pr0.1Ba0.9Fe0.8Co0.2O3-δ nanofiber has the best electrochemical performance and the highest oxygen surface exchange kinetics performance. The area-specific resistance (ASR) of Pr0.1Ba0.9Fe0.8Co0.2O3-δ nanofiber is 0.1416 Ω cm2 at 700 °C. When the peak power density (PPD) of the YSZ-NiO/YSZ/GDC/PBCF1–F single cell shows 0.787 W cm−2, an anode-supported fuel cell with Pr0.1Ba0.9Fe0.8Co0.2O3-δ nanofiber demonstrates excellent stability after 100 h of long-term stability test. Electrospinning technology is an effective method to prepare high-performance cathodes, and Pr0.1Ba0.9Fe0.8Co0.2O3-δ nanofiber cathodes are expected to be high-performance cathode materials for IT-SOFCs.

Three dimensional and porous network architecture based on polyaniline hollow nanofibers with high specific capacitance and outstanding cyclic stability for supercapacitor electrode materials

In order to resolve the bottleneck issue of polyaniline (PANI) electrode including low specific capacitance and poor cyclic stability, three dimensional (3D) and porous network architecture was constructed by polyaniline hollow nanofibers (PANI-HFs) prepared via facile chemical oxidative polymerization. The morphology, specific surface areas, and pore sizes, chemical structure and the crystallinity of the PANI-HFs were thoroughly analyzed by various measurements. The obtained PANI-HFs present 3D porous network structure, highly regular morphology of hollow nanofibers and large specific area, as benefits the electronic transport and ionic transfer. According to the electrochemical measurements, at the current density of 1 A g−1, the PANI-HFs achieved high specific capacitance of 290 F g‐1 and superior cyclic stability with the capacitance retention of 83% even after 1000 charge/discharge cycles. On basis of the charge storage mechanism of the electrode proposed, the advantageous electrochemical performance results from the special architecture constructed by the PANI-HFs and the structure of hollow nanofibers. More importantly, as a breakthrough, the all-solid state symmetrical supercapacitors based on PANI-HFs lighted up the light emitting diode (LED) for the first time, as means significant perspective in the application of energy storage.

Effects of tri-solvent and electrospinning condition on the morphology of cellulose acetate nanofibers

Effects of tri-solvent and electrospinning condition on the morphology of cellulose acetate nanofibers

Effects of the morphology and diameter of TiO2 nanofibers as light-scattering layers on the efficiency of dye-sensitized solar cells

In this study, TiO2 nanofibers was synthesized using electrospinning method with varying applied voltage (10 kV–20 kV) to obtain high surface-volume ratio and porous material. As the applied voltage increased, diameter of TiO2 nanofibers decreased and the presence of beads disappeared resulting in homogeneous nanofibers. At applied voltage higher than 16 kV, TiO2 nanofibers have diameter less than 100 nm. TiO2 nanofibers are deposited on top of TiO2 nanoparticles which act as a light-scattering layer. Based on the I–V characteristic, TiO2 nanofibers produced by applied voltage of 18 kV gives the highest efficiency of 2.38% with JSC 6.37 mA cm−2, VOC of 0.74 V and fill factor of 50.54%. Adding the TiO2 nanofibers as light-scattering layer improve and extend the path of light, thereby increasing the power conversion efficiency of dye-sensitized solar cells.

Effects of Reduced Graphene Oxide on Structural, Morphological, and Contact Angle Measurements of Poly (Vinyl Alcohol)/Polyvinyl Pyrrolidone Nanofibers

Polymer blend nanofibers are attracting considerable attention due to their wide applications in energy storage, water purification, drug delivery, and wettability studies. To date, research on poly (vinyl alcohol)/polyvinyl pyrrolidone (PVA/PVP) embedded with graphene-related materials like graphene oxide or reduced graphene oxide(rGO) are synthesized from solution mixing and casting into film, with limited efforts on developing polymer blend nanofibrous films. The present study focuses on developing the PVA/PVP blend nanofibrous film embedded with rGO using the electrospinning technique. The X-ray Diffraction (XRD), Field Emission scanning electron microscopy (FESEM), and contact angle measurements are used to investigate the structural, morphological, and wettability of the synthesized nanofibrous film. The rGO is synthesized by the improved Hummer’s method. The study provides insights into the tuning of the contact angles by modifying the morphology of nanofibers. The as-synthesized nanofibers have a diameter of about 150-250 nm and with the increase in rGO weight percentage show a drastic change in contact angle from 64° to 35.2°. These results highlight the modification of the wettability properties of blend nanofiber films by embedding rGO.