Solvent Volume Ratio Research Articles

Fabrication of PbS QD-Mediated Organic-Inorganic Hybrid Swir Opds Using Azide Functional Ligand (FPA-S) and Study of Polymer Morphology Control

The efficiency of exciton dissociation and electron mobility in organic photodetectors (OPDs) is critically dependent on the microscale morphology of the interpenetrating network structures between electron donor and acceptor materials. Therefore, understanding the impact of phase separation within the active layer and the interactions between components is crucial for OPD performance.In this study, we propose a hybrid Short Wavelength Infrared (SWIR) photodiode that utilizes PbS quantum dots (QDs) minimally, leveraging their exceptional SWIR absorption properties, alongside an organic semiconductor matrix to counterbalance their poor charge transport characteristics. While similar concepts of organic-inorganic hybrid photodiodes have been suggested previously, the straightforward blending of organic semiconductors and QDs has been constrained by poor miscibility due to differences in surface energy between organic and inorganic phases. This results in reduced phase stability post-film fabrication and significant phase separation. Therefore, we introduce an azide-functional ligand (FPA-S) capable of coordinating with QDs and bonding with polymers via azide groups, to induce photo-crosslinking and suppress phase separation between polymers and QDs.Effectively separating excitons while minimizing the amount of PbS QDs, which are toxic and exhibit low charge mobility, necessitates controlling the morphology of the active layer. We optimized conditions such as solvent type, evaporation rate, volume ratio, and external humidity based on a quaternary phase diagram derived from Flory-Huggins interaction parameters. Additionally, we sought to identify the optimal condition by calculating the equilibrium state of the phase-separated structure of polymers using a phase-field model with the Ising machine.

Impact of alkaline solution, carbohydrase and biomass:solvent on extraction efficiency, and protein and amino acid profiles of Palmaria palmata protein extracts

The impact of using different alkaline solutions, carbohydrases and changing the biomass to solvent volume ratio (biomass:solvent) on protein content, protein and biomass yield recovery in protein enriched extracts from Palmaria palmata (red seaweed) was studied. Protein extraction with alkaline solutions, i.e., NaOH, KOH, Ca(OH)2 and Na2CO3 (at 0.12 M) along with (and without) carbohydrases B, BD and L (containing xylanase, a mixture of xylanase and cellulase, and a combination of cellulase, xylanase and polygalacturonase activities, respectively) was assessed. Principal component analysis was used to assess correlations (if any) between the different alkaline solvents, carbohydrases and changing biomass:solvent on extraction efficiency. The highest protein content (56.64 ± 0.43 % (w/w)) was obtained using KOH assisted extraction with carbohydrase BD. The highest protein and biomass yield recoveries (70.65 ± 1.38 and 21.99 ± 0.43 % (w/w), respectively) were obtained on extraction using NaOH assisted with carbohydrases BD. Electrophoretic, amino acid profile and amino acid score analyses displayed differences depending on the alkaline solvent used for protein extraction. Appropriate selection of the alkaline solvent, carbohydrase and biomass:volume combination during protein extraction can contribute to the production of compositionally enhanced high-quality protein concentrates from P. palmata.

Optimasi Proses Ekstraksi Dan Uji Aplikasi Pewarnaan Kain Menggunakan Pewarna Alami Dari Daun Susupan Gunung (Mimosa pigra L.)

Susupan gunung (Mimosa pigra L.) is a weed that grows wild and is often found in peatlands. This plant can grow in tropical and subtropical regions. Phytochemical analysis of the leaves of susupan gunung has shown that the leaves contain tannin compounds, indicating the potential of these leaves to be a source of natural textile dyes. Natural dyes can replace synthetic dyes in the textile industry, which can pollute the environment due to their carcinogenic nature. This research to find the optimal operating conditions for extracting natural dyes from susupan gunung leaves and to test the dyeing quality of cotton fabric using susupan gunung leaf extract. The variables used in the extraction process are temperature, time, and ratio of raw material to solvent volume. The tannin concentration in the extract was analyzed using the volumetric method and optimized using Response Surface Methodology (RSM) with the Box-Behnken model. Fabric dyeing was performed using alum, iron, and calcium as mordants after dyeing the fabric. The result of this research indicate that the optimal operating conditions are at a temperature of 77oC, a time of 40 minutes, and a raw material to solvent volume ratio of 1:8, with a tannin concentration of 0,004 g/ml. The best fabric dyeing quality results were obtained using alum mordant, with a colorfastness rating of 4-5 (good) for washing and a colorfastness rating of 5 (very good)for rubbing.

Extraction of polyphenols and antioxidant compounds from SCOBY, as a by-product of Kombucha, using different types of extraction

Kombucha is obtained through a symbiosis fermentation of bacteria and yeast, generating a floating film called SCOBY (Symbiotic Culture of Bacteria and Yeast). After a period of use, SCOBY becomes a production waste. Thus, alternative uses of SCOBY can add value to Kombucha production. In this way, this work aimed to produce and evaluate antioxidant activity and total phenolic contents of SCOBY ethanolic extracts, which were obtained by two different solid–liquid extraction with three different waste weight/extractor solvent volume ratios. The SCOBY evaluated had a high concentration of cellulose (9.42 ± 1.00%) and low concentrations of proteins (0.84 ± 0.04%) and lipids (0.29 ± 0.05%). All evaluated extracts showed a high concentration of total phenolics (40.7–64.3 mg GAE/100 g of SCOBY) and high antioxidant activity (ABTS•+, FRAP and ORAC assays). The most efficient extraction of bioactive compounds was obtained by decoction using the highest solvent volume (ratio 1:20). The PCA showed clusters of the samples both by the type of extraction and by the different ratios of the weight of SCOBY to the solvent volume. Of our knowledge, our work is the first in the literature that describes such data. Therefore, the present work showed the possibility of using this industrial waste mainly to obtain active compounds and antioxidants.

Melt‐Processable and Electrospinnable Shape‐Memory Hydrogels

AbstractDue to their ability to adapt to subtle changes in response to various external and internal stimuli, smart hydrogels have become increasingly popular in research and industry. However, many currently available hydrogels suffer from poor processability and inferior mechanical properties. For example, the preparation of a hydrogel network that can be subjected to melt processing and electrospinning is challenging. Herein, a series of mechanically strong, shape‐memory hydrogels based on polyacrylic acid (PAAc) chains containing 20–50 mol% of crystallizable n‐octadecylacrylate (C18A) segments are prepared by an organosolv method followed by in situ physical cross‐linking via hydrophobic interactions. The hydrogels exhibit a reversible strong to weak gel transition at 50–60 °C and can be melt‐processed at 60–100 °C, depending on the molar fraction of C18A. Additionally, the hydrogels can be dissolved in chloroform/ethanol mixture to form a viscous solution, which can then be used to produce a nanofibrous network by electrospinning. Effects of polymer concentration, volume ratio of solvents, and mole fraction of C18A on electrospinning are investigated to produce smooth, uniform nanofibers with small fiber diameter. The produced nanofibers, while maintaining their chemical structure, show significantly improved water adsorption capacity, enhanced mechanical properties, and fast shape‐memory performance.

Extraction of geraniol from palmarosa oil using hydrotropic solvents

The extraction of geraniol from palmarosa oil using hydrotropic solvents was investigated. Palmarosa oil possesses an appealing rose aroma and properties like anti-inflammatory, antifungal, and antioxidant due to the presence of geraniol. The extraction of geraniol from palmarosa oil by using distillation methods like steam distillation and fractional distillation was a laborious process. So hydrotropes were tried for extraction. The geraniol yield and purity depend on parameters like concentration of hydrotrope, solvent volume ratio, and time period. Using the Box Benkhem Design (BBD), the extraction process was optimized. One of the major advantages of using hydrotropic solvents is that they were classified as green solvents, and recovery of solvents is also possible. To reduce the extraction time probe sonication is carried out. Different hydrotropic solvents with probe sonication are done on palmarosa oil by altering various process parameters to study the separation, yield, and purity.

Development of an HPLC device with water/acetonitrile with NaCl mixed solution that induces a phase-separation multiphase flow as the eluent in the separation column.

We developed a novel HPLC device where the phase-separation multiphase flow worked as the eluent in the separation column by using a water/acetonitrile/ethyl acetate triple mixed solution as a dual-phase-separation solution. Dual-phase-separation solutions form a phase-separation multiphase flow in a microscopic space. The new separation mechanism in the HPLC is called phase-separation mode. In this study, we used water and acetonitrile with NaCl mixed solution as a dual-phase-separation solution instead of the triple mixed solution. Octadecylsilyl (ODS)-modified particle- and porous silica particle-packed separation columns were united with the HPLC device for phase-separation mode caused by phase-separation multiphase flow. NA (1-naphthol) and NDS (2,6-naphthalenedisulfonic acid) were analyzed by the device as model sample. Using the water and acetonitrile with NaCl mixed solution at the solvent volume ratio of 5:5, NA and NDS were not separated on either column at 25°C. On the other hand, they were separated with the order NDS and NA on the ODS column and separated with the order NA and NDS on the silica column in phase-separation mode at 0°C. We discuss the separation mechanism of phase-separation mode using the water and acetonitrile with NaCl mixed solution at 0°C.

Removal of encapsulant ethylene-vinyl acetate for recycling of photovoltaic modules: Hansen solubility parameters analysis

Delamination of photovoltaic modules is crucial for the recovery of solar cell materials. In this article, we investigate the swelling of ethylene-vinyl acetate (EVA) using various organic solvents at a temperature range between 25 and 55°C. The swelling of the encapsulant EVA caused by the interaction of organic solvents aids in the separation of glass, solar cell, and Tedlar layer in the recycling of photovoltaic modules. Further, we quantify the interactions between the encapsulant EVA and the organic solvents by the solvent weight ratio and solvent volume ratio of EVA. The quantification of interactions between encapsulant EVA and various organic solvents is used to estimate the Hansen solubility parameters of encapsulant EVA. The temperature-dependent variation of physical properties of organic solvents and their effect on encapsulant EVA swelling are described. Organic solvents retained in encapsulant EVA matrix after drying at room temperature can be viewed as a method to reduce emissions of volatile organic compounds during recycling. Additionally, our experiments suggest that d-limonene, xylene, and toluene are the most effective solvents for delamination of end-of-life photovoltaic modules for recycling.

Synthesis of Solvent-Mediated Morphology-Controlled PdSn Alloy Nanocatalysts and their Application in Electrocatalysis of Ethylene Glycol and Ethanol.

2D nanodendrites (NDs) and nanosheets (NSs) have been regarded as efficient nanocatalysts for enhancing the electrocatalytic performance due to their low coordinated sites and abundant electrocatalytic centers. Nevertheless, it remains challenging to construct advanced NDs and NSs in a single reaction system. Herein, by tuning the volume ratios of mixed solvents, the reduction and diffusion rate of Sn2+ on Pd NSs template was rationally controlled to prepare PdSn NDs and PdSn NSs. Ascribed to the open 2D nanostructure, high specific surface area, and robust synergistic effect, the as-prepared PdSn NDs and PdSn NSs exhibited distinguished electrocatalytic activities for ethylene glycol oxidation reaction (EGOR) and ethanol oxidation reaction (EOR), as well as commendable electrocatalytic durability, which were far superior to the Pd NSs and commercial Pd/C. In addition, the PdSn NDs exhibited enhanced reaction kinetics because the characteristic branch structure exposed a high density of active sites. This work may provide significant guidance for preparing excellent nanocatalysts with various morphological features by simply optimizing the content of the coexisting solvents.

Morphology modulation and surface reconstruction of the NiFeSe arrays during long-term OER process at large current densities

Developing catalysts with long term stability at large current densities for oxygen evolution reaction (OER) remains a major challenge. Herein, the NiFeSe arrays were synthesized on the commercial nickel-iron foams (NFF) substrate using a one-step hydrothermal method by changing the hydrazine hydrate to solvent volume ratio in the precursors and reaction temperature. The NiFeSe/NFF catalyst prepared at the hydrazine hydrate to solvent volume ratio of 1:4 and reaction temperature of 160 °C shows the optimal OER electrocatalytic performance with a low overpotential of 245, 259 and 269 mV at the current density of 100, 200 and 300 mA cm−2, small Tafel slope of 44.7 mVdec−1 and large electrochemical surface area (ECSA) of 600 cm2 in 1 M KOH solution. Importantly, the OER activities of the NiFeSe/NFF catalyst exhibit enhancement during long-term stability test at a bias of 1.04 V (vs. Hg/HgO) for 327 h. During long-term continuous OER electrochemical process, the formation of NiFeOOH/NiFeSe heterojunction resulting from the surface reconstruction are responsible for enhancing OER activities by modulating the electron structure of interface and increasing the adsorption ability of intermediate *OH and *OOH on the surface of NiFeOOH. Our work provides new idea to design and construct heterostucture catalyst via the in-situ surface reconstruction.

Extraction technology, components analysis and anti-inflammatory activity in vitro of total flavonoids extract from Artemisia anomala S. Moore

Artemisia anomala S. Moore exerts many pharmacological activities, including the removing of the blood stasis, relieving of the fever and analgesia, reducing the swelling and dampness. In this study, the extraction technology, chemical compositions and anti-inflammatory effect in vitro and mechanism of total flavonoids extract from Artemisia anomala S. Moore were studied. The optimal yield rate of total flavonoids extract was optimized by single factor experiments and response surface method, and the chemical constituents were analyzed by UPLC-QTOF-MS method; and the anti-inflammatory activity of the extract was evaluated with lipopolysaccharide induced RAW 264.7 cells. The highest extraction rate was 2.02% under these conditions of the concentration of ethanol 50%, the ultrasonic extraction time 30 min, and the ratio of solvent volume to material weight 20:1 (ml/g). In addition, the main components of total flavonoid extract were preliminarily identified and deduced based on mass spectrometry information and relevant literatures, and its stronger anti-inflammatory activity was demonstrated by reducing the phagocytosis, the content of nitric oxide and the level of related cytokines (tumor necrosis factor-α, interleukin−10, interleukin-6). Furthermore, it was further revealed that the anti-inflammatory effect of the extract was closely connected with the activation of TLR4-MyD88-NF-κB signalling pathway. This study indicated that the total flavonoids extract from Artemisia anomala S. Moore may be a better candidate anti-inflammatory natural medicine.

Controlled Synthesis and Visible-Light-Driven Photocatalytic Activity of BiOBr Particles for Ultrafast Degradation of Pollutants.

For the purpose of regulating the visible-light-driven photocatalytic properties of photocatalysts, we selected BiOBr as the research target and various routes were used. Herein, via the use of a hydrothermal method with various solvents, BiOBr particles with controllable morphology and photocatalytic activities are obtained. In particular, through changing the volume ratio of ethylene glycol (EG) to ethanol (EtOH), BiOBr compounds possess microspheres, in which samples synthesized by using EG:EtOH = 1:2 have the highest photocatalytic activity, and can completely decompose RhB under visible light irradiation within 14 min. Furthermore, we also used different volume ratios of EG and H2O reaction solvents to prepare BiOBr particles so as to further improve its pollutant removal ability. When the volume ratio of EG to H2O is 1:1, the synthesized BiOBr particles have the best photocatalytic activity, and RhB can be degraded in only 10 min upon visible light irradiation. Aside from the reaction solvent, the impact of sintering temperature on the photocatalytic properties of BiOBr particles is also explored, where its pollutant removal capacities are restrained due to the reduced specific surface area. Additionally, the visible-light-triggered photocatalytic mechanism of BiOBr particles is determined by h+, ·OH and ·O2- active species.

Rapid synthesis of Palladium-Platinum-Nickel ultrathin porous nanosheets with high catalytic performance for alcohol electrooxidation

Bimetallic two-dimensional (2D) nanomaterials are widely used in electrocatalysis owing to their unique physicochemical properties, while trimetallic 2D materials of porous structures with large surface area are rarely reported. In this paper, a one-pot hydrothermal synthesis of ternary ultra-thin PdPtNi nanosheets is developed. By adjusting the volume ratio of the mixed solvents, PdPtNi with porous nanosheets (PNSs) and ultrathin nanosheets (UNSs) was prepared. The growth mechanism of PNSs was investigated through a series of control experiments. Notably, thanks to the high atom utilization efficiency and fast electron transfer, the PdPtNi PNSs have remarkable activity of methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR). The mass activities of the well-tuned PdPtNi PNSs for MOR and EOR were 6.21 A mg−1 and 5.12 A mg−1, respectively, much higher than those of commercial Pt/C and Pd/C. In addition, after durability test, the PdPtNi PNSs exhibited desirable stability with the highest retained current density. Therefore, this work provides a significant guidance for designing and synthesizing a new 2D material with excellent catalytic performance toward direct fuel cells applications.

Preparation and characterization of dummy template molecularly imprinted polymers coupled with HPLC for selective extraction of spiked cloprostenol from milk samples

This study was conducted to develop a particular sorbent for the selective extraction of the luteolytic drug cloprostenol from milk samples. Cloprostenol's luteolytic activity has been proved in animals, whereas the production of prostaglandins is discussed extensively in the literature, while extraction of cloprostenol is rarely discussed. The major objective was to get sufficient molecularly imprinted polymers (MIPs) for selective extraction and detection of cloprostenol. After a series of experiment, MIPs and their analogues NIPs, were synthesized. In these experiments, radical polymerization with non-covalent interactions has been used to synthesize MIPs and NIPs. Different parameters to determine the optimization conditions such as solvent volume, cross-linker, and template ratio were studied in various sets to get better possible characteristics of MIPs. The HPLC was used to evaluate the retention capacity which ranges from 68.5% to 94.1%. The mechanism of adsorption was studied by the isothermal assay and kinetic studies. The kinetic studies exhibited a high retention capacity within 20 min of MIPs contact. The percentage of polymer yield ranged from 53.5% to 92.3%. HPLC coupled with a UV detector showed the limit of detection and limit of quantification of 30.5 ng/mL and 86.7 ng/mL, respectively, for the determination of analytes from milk samples. The recovery of cloprostenol for all spiked samples of milk was higher than 91.54%. Furthermore, the studies showed that MIPs are specific in the adsorption of cloprostenol compared to its other structural analogues. The outcomes also showed the significance of cross-linker concentration and the amount of solvent during the process of polymerization. These parameters greatly affect the preorganization of complementary functional groups, meanwhile, it creates specific cavities for the targeted drugs.

Optimization of Carob Products Preparation for Targeted LC-MS/MS Metabolomics Analysis

Carob (Ceratonia siliqua) is an exceptional source of significant bioactive compounds with great economic importance in the Mediterranean region, where it is widely cultivated. Carob fruit is used for the production of a variety of products and commodities such as powder, syrup, coffee, flour, cakes, and beverages. There is growing evidence of the beneficial effects of carob and the products made from it on a range of health problems. Therefore, metabolomics could be used to explore the nutrient-rich compounds of carob. Sample preparation is a crucial step in metabolomics-based analysis and has a great impact on the quality of the data obtained. Herein, sample preparation of carob syrup and powder was optimized, to enable highly efficient metabolomics-based HILIC-MS/MS analysis. Pooled powder and syrup samples were extracted under different conditions by adjusting pH, solvent type, and sample weight to solvent volume ratio (Wc/Vs). The metabolomics profiles obtained were evaluated using the established criteria of total area and number of maxima. It was observed that the Wc/Vs ratio of 1:2 resulted in the highest number of metabolites, regardless of solvent type or pH. Aqueous acetonitrile with a Wc/Vs ratio of 1:2 satisfied all established criteria for both carob syrup and powder samples. However, when the pH was adjusted, basic aqueous propanol 1:2 Wc/Vs and acidic aqueous acetonitrile 1:2 Wc/Vs provided the best results for syrup and powder, respectively. We strongly believe that the current study could support the standardization of the metabolomics sample preparation process to enable more efficient LC-MS/MS carob analysis.

Electrohydrodynamically Printed High‐resolution Arrays Based on Stabilized CsPbBr3 Quantum Dot Inks

AbstractHigh‐resolution perovskite quantum dots (PeQDs) arrays printed by electrohydrodynamic (EHD) inkjet printing show great application prospects in fields of micro‐display. Commonly, EHD inkjet requires a polar system for printing but it easily quenches the PeQDs. Meanwhile, the mismatch of solvent parameters causes uneven surface morphology and printing instability. In this work, a morphology uniformization strategy of a nonpolar binary solvent system of 1,3,5‐triethylbenzene and n‐tetradecane is proposed to prepare the didodecyldimethylammonium bromide (DDAB)/PbBr2 passivated PeQDs inks. When the solvent volume ratio is 5:5, the photoluminescence quantum yield (PLQY) of the ink reaches 94.06%. Benefiting from the match of boiling point, surface tension, and dielectric constant of ink, after the EHD inkjet printing, the line width of continuous smooth line arrays is as narrow as 2.0 µm and the coffee effect of dot arrays is well inhibited. Meanwhile, derived from the strong electrostatic interaction between the π‐electron structure of 1,3,5‐triethylbenzene and DDA+, the ink exhibits high stability. Moreover, the high‐resolution logo and miniature quick responsecode by EHD inkjet printing reach 22 718 dpi, far higher than that of the reported micro‐LED. This work paves the way for high‐resolution pixel arrays of micro‐display.

Optimization of synthesis conditions, characterization and magnetic properties of lanthanide metal organic frameworks from Brønsted acidic ionic liquid

Two lanthanide metal organic frameworks (MOFs) {Er2[(C9N2O4H11)3(H2O)Br]Br·Cl}n (1) and {Yb2[(C9N2O4H11)3(H2O)2]Br·Cl2}n(2) were solvothermally synthesized using Brønsted acidic ionic liquid: 1,3-bis(1-dicarboxylatoethyl) imidazolium bromide ([H2bcei]Br) as ligand. The results of single crystal X-ray diffraction show that Er3+ and Yb3+ both possess two different seven-coordinated chemical environments in 1 and 2, respectively. While coordinating to Er3+ and Yb3+, [bcei]‒ displays same coordination mode because of their similar ionic radius. Although Er3+ and Yb3+ display different chemical environments, they are all linked by [bcei]− via Ln−O coordination bonds affording two three-dimensional structures with Cl− or Br− in the frameworks through H-bonds and electrostatic interaction. Considering the effect of the reaction temperature, solvents and solvent volume ratio on the crystal growth, the optimized synthesis conditions of 1 and 2 were explored. The magnetic behaviors of 2 were measured in the temperature range 2–300 K, which reveals its antiferromagnetic interaction between Yb3+ions.

Influence of organic to aqueous phase solvent volume ratio on the physicochemical characteristics of rosuvastatin and ezetimibe loaded lipid-polymer hybrid nanoparticles prepared by nanoprecipitation method

Influence of organic to aqueous phase solvent volume ratio on the physicochemical characteristics of rosuvastatin and ezetimibe loaded lipid-polymer hybrid nanoparticles prepared by nanoprecipitation method

The Preparation of Apigenin Nanoparticles and the Study of Their Anti-Inflammatory and Anti-Tumor Activities In Vitro

Apigenin (API) has many biological activities, but its poor solubility limits its clinical application. In this research, API nanoparticles were prepared by the liquid antisolvent precipitation (LAP) technique, which effectively improved the solubility and bioavailability of API. Through the design of a single-factor test, the effects of the type and dosage of surfactants, API concentration, the antisolvent to solvent volume ratio, the speed and time of stirring, the temperature of precipitation, and the dropping speed on the MPS (mean particle size) of API nanosuspension were carried out. The optimum technological conditions were determined as follows: 5 mg/mL of tween 80 as a surfactant, 20 mg/mL of API, an antisolvent/solvent volume ratio of 10, a 1200 r/min stirring speed for 5 min, a 45 °C precipitation temperature, and a 1 mL/min dropping speed. Under the optimum conditions, we obtained API nanosuspension with 170.5 nm MPS and then it was freeze-dried to obtain the API nanoparticles. Moreover, we characterized the API nanoparticles by SEM, FTIR, XRD, DSC, and TG. Results showed that although API nanoparticles transformed into an amorphous form, their internal chemical structure had not been changed and had a higher solubility. Finally, API nanoparticles’ anti-inflammatory activities were evaluated by observing the effect of API on nitric oxide (NO) production and IL-10 production toward RAW264.7 cells induced by lipopolysaccharide (LPS). Moreover, the anti-tumor effect of API was determined by testing cell viability and apoptosis. The results suggested that API nanoparticles exhibited much better anti-inflammatory and anti-tumor activities compared to raw API.

Investigation of the optimum vibration energy harvesting performance of electrospun PVDF/BaTiO3 nanogenerator

The piezoelectric vibration energy harvesting performance of an electrospun poly(vinylidene fluoride) (PVDF)/Barium Titanate (BaTiO3) nanocomposite piezo polymer nanogenerator was investigated in this study. To obtain the highest piezoelectric output value, electrospinning was performed using four distinct solvent volume ratios of Acetone/Dimethylformamide (DMF) of 0:10, 2:8, 4:6, and 6:4 and three different PVDF weight percent polymer concentrations of 10, 15, and 20. Additionally, three distinct BaTiO3 addition weight percents of 5, 10, and 15 were investigated. The optimal concentration of PVDF (15 wt.%) was combined with a 6:4 volume ratio of Acetone/DMF to form a nanocomposite piezo polymer nanogenerator. The morphology and crystalline structure of PVDF and PVDF/BaTiO3 were analyzed using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) techniques. Nanocomposite piezo polymer nanogenerator was manufactured to harvest energy from vibration. A cantilever beam was developed without a tip mass type system for piezoelectric energy harvesting tests. The highest piezoelectric power output was obtained as 0.243 μW (15 wt.% PVDF and 5 wt.% BaTiO₃), Acetone/DMF (6:4 vol./vol.)) under 10 MΩ at the 15.7 Hz resonance frequency. The morphology of electrospun nanofibers has a significant impact on the piezoelectric performance of a nanocomposite piezo polymer nanogenerator at high-amplitude vibration.