Optimization of graphene-functionalized polycaprolactone nanofibers: enhancing mechanical, thermal, and biocompatibility properties for biomedical applications DOI Creative Commons

T. S. Sankar,

T K Kannan,

Rajasekar Rathanasamy

et al.

Digest Journal of Nanomaterials and Biostructures, Journal Year: 2025, Volume and Issue: 20(2), P. 443 - 456

Published: May 15, 2025

The development of biocompatible materials with enhanced properties is critical for biomedical applications. However, polycaprolactone (PCL), a widely used biodegradable polymer, exhibits insufficient mechanical and thermal demanding This study addresses the challenge by incorporating carboxyl-functionalized graphene (CFG) hydroxyl-functionalized (HFG) derivatives into PCL nanofibers using electrospinning. objective to optimize content improve strength, stability, biocompatibility nanocomposites. Electrospun varying concentrations (0.5, 1, 2 wt%) were characterized morphology, properties, behavior, cell viability. Results demonstrated that 1 wt% provided optimal performance, significantly enhancing tensile strength (5.5 MPa CFG, 5.4 HFG) Young's modulus while maintaining uniform, bead-free fibers. Thermal analysis revealed improved crystallinity degradation temperature, MTT assays showed superior viability (up 93%) at graphene. These highlight potential PCL/graphene nanocomposites as high-performance biomaterials tissue regeneration. Future research should explore in vivo performance long-term biological effects confirm their clinical

Language: Английский

Advancements in MQL machining: a comparative study of cutting fluids on AISI 630 steel DOI

M. Balamurugan,

Sivakumar Subramani, Ratchagaraja Dhairiyasamy

et al.

The International Journal of Advanced Manufacturing Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

Language: Английский

Citations

1
Renewable syngas and biodiesel dual fuel applications for enhanced engine performance and emission control DOI Creative Commons
Ratchagaraja Dhairiyasamy, Saurav Dixit,

Deekshant Varshney

et al.

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 225, P. 120509 - 120509

Published: Jan. 18, 2025

Language: Английский

Citations

1
Optimization of solar water heating absorber riser with header tube using RSM and CFD simulation DOI Creative Commons

Sivakumar Narayanasamy,

George Iruthayasamy,

Perumal Ramesh Kannan

et al.

Matéria (Rio de Janeiro), Journal Year: 2025, Volume and Issue: 30

Published: Jan. 1, 2025

ABSTRACT The growing global energy demand and environmental concerns underscore the importance of optimizing solar water heating systems (SWHS) with an emphasis on material properties to enhance thermal efficiency. Despite technological advancements, challenges in selection, riser tube design, operational parameters limit performance SWHS. This study focuses efficiency a flat plate collector by integrating analysis within combined Computational Fluid Dynamics (CFD) simulation Response Surface Methodology (RSM) framework. By exploring effects count, conductivity, mass flow rate, inclination angle, demonstrates how significantly influence heat transfer. Copper, as absorber material, exhibited superior performance, optimized conditions achieving maximum outlet temperature 350.61 K. CFD-RSM methodology minimized experimental iterations provided deeper understanding interplay between system dynamics. These findings highlight critical role selection developing cost-effective, high-efficiency absorbers. Future research should investigate advanced materials innovative geometries sustainability SWHS further.

Language: Английский

Citations

0
Consequences of Micro- and Macronutrient Deficiencies on Physiological and Growth Metrics in Hydroponic ‘Thompson Seedless’ Grapevines DOI Creative Commons
Maoxiang Zhao, Jianjun He,

Jiebu Suolang

et al.

Horticulturae, Journal Year: 2025, Volume and Issue: 11(5), P. 543 - 543

Published: May 18, 2025

(1) Background: Mineral nutrient deficiencies are a major constraint on grapevine growth and productivity, yet the clear identification of deficiency symptoms their physiological impacts remains challenging. (2) Methods: In this study, ‘Thompson Seedless’ grapevines were grown hydroponically under controlled omission ten essential nutrients (N, P, K, Ca, Mg, Fe, Mn, B, Zn, Cu) to assess impact growth, leaf morphology, chlorophyll content, photosynthesis, respiration, tissue concentrations. (3) Results: Deficiencies in N, B caused distinct symptoms: nitrogen (N) led pale leaves with bluish-green veins, phosphorus (P) yellowing apical followed by interveinal chlorosis, potassium (K) induced yellow discoloration, curling, rotting leaves. Manganese (Mn) boron (B) showed such as irregular shapes brittle, glossy leaves, respectively. These resulted reduced dry matter accumulation, decreased shoot length, lower content. contrast, iron (Fe) copper (Cu) had minimal effects, closely resembling those control conditions only slight suppression. Notably, Mg significant reductions Cu, N levels, particularly evident through newly formed (4) Conclusions: significantly affect processes, nutritional quality. findings emphasize importance maintaining balanced mineral nutrition for optimal health productivity.

Language: Английский

Citations

0
Optimization of graphene-functionalized polycaprolactone nanofibers: enhancing mechanical, thermal, and biocompatibility properties for biomedical applications DOI Creative Commons

T. S. Sankar,

T K Kannan,

Rajasekar Rathanasamy

et al.

Digest Journal of Nanomaterials and Biostructures, Journal Year: 2025, Volume and Issue: 20(2), P. 443 - 456

Published: May 15, 2025

The development of biocompatible materials with enhanced properties is critical for biomedical applications. However, polycaprolactone (PCL), a widely used biodegradable polymer, exhibits insufficient mechanical and thermal demanding This study addresses the challenge by incorporating carboxyl-functionalized graphene (CFG) hydroxyl-functionalized (HFG) derivatives into PCL nanofibers using electrospinning. objective to optimize content improve strength, stability, biocompatibility nanocomposites. Electrospun varying concentrations (0.5, 1, 2 wt%) were characterized morphology, properties, behavior, cell viability. Results demonstrated that 1 wt% provided optimal performance, significantly enhancing tensile strength (5.5 MPa CFG, 5.4 HFG) Young's modulus while maintaining uniform, bead-free fibers. Thermal analysis revealed improved crystallinity degradation temperature, MTT assays showed superior viability (up 93%) at graphene. These highlight potential PCL/graphene nanocomposites as high-performance biomaterials tissue regeneration. Future research should explore in vivo performance long-term biological effects confirm their clinical

Language: Английский

Citations

0