Background
Wound healing is a complex physiological process that can be compromised by infection and impaired tissue regeneration. Conventional dressings, typically made from natural fibers such as cotton or linen, offer limited functionality. Nanofiber scaffolds, particularly those based on biocompatible polymers like PLA, provide high surface area and porosity, making them suitable for controlled drug delivery and tissue interaction.
Curcumin, a bioactive compound derived from turmeric, has demonstrated anti-inflammatory and antibacterial properties. However, its use in wound care is limited by poor solubility and low bioavailability. CNTs offer complementary advantages: they possess intrinsic antibacterial activity and can improve the mechanical properties and drug release profiles of polymer-based systems.
This study investigates the integration of CNTs into PLA-curcumin nanofibers to create a multifunctional wound dressing capable of both structural support and infection control.
The Current Study
The dressing was produced using electrospinning, a technique suitable for fabricating nanofibers with controlled morphology. PLA (molecular weight: 203,000 g/mol) was dissolved in dichloromethane, followed by the addition of curcumin to ensure uniform dispersion. CNTs were incorporated at varying concentrations to assess their effects on the material’s structural and functional properties.
Electrospun nanofibers were collected using a standard setup with a controlled flow rate and fixed needle-to-collector distance. Characterization included Fourier-transform infrared spectroscopy (FTIR) for chemical analysis and scanning electron microscopy (SEM) for morphology. Tensile tests evaluated mechanical strength, while curcumin release profiles were analyzed through in vitro assays. Antibacterial performance was assessed using standard strains of Staphylococcus aureus and Escherichia coli.
Results and Discussion
Incorporating CNTs significantly improved the mechanical strength and thermal stability of the PLA-curcumin nanofibers. Tensile testing showed that even small additions of CNTs enhanced tensile strength compared to pure PLA. Drug release studies confirmed a controlled and sustained release of curcumin, with the rate modulated by CNT concentration. This effect was attributed to changes in scaffold porosity and microstructure.
Antibacterial assays revealed that CNT-containing composites had a marked inhibitory effect on bacterial growth. The PLA-Cur-0.05 % CNT formulation showed the highest antibacterial activity, with a 78.95 % reduction in microbial growth. While curcumin alone showed limited antibacterial efficacy in the PLA matrix, CNTs appeared to support both dispersion and membrane-disruptive mechanisms, contributing to improved outcomes.
Water absorption tests further supported the composite’s suitability for wound care. While PLA alone exhibited high water uptake, the addition of curcumin and CNTs reduced this absorption. A more moderate water uptake profile is advantageous for managing exudates without compromising the mechanical integrity of the dressing.
Conclusion
This study demonstrates the potential of CNT-enhanced PLA-curcumin nanofiber mats as multifunctional wound dressings. The combination of improved mechanical properties, antibacterial activity, and controlled drug release offers a promising platform for infection management and wound healing support. The design leverages nanostructure engineering to overcome the limitations of conventional materials and drug delivery systems.
Future research should explore in vivo performance, scalability, and further refinement of the composite formulation. Optimizing component ratios and evaluating long-term biocompatibility will be key steps toward clinical application.
Journal Reference
Faal M., et al. (2025). Fabrication and evaluation of polylactic acid-curcumin containing carbon nanotubes (CNTs) wound dressing using electrospinning method with experimental and computational approaches. Scientific Reports. DOI: 10.1038/s41598-025-98393-2, https://www.nature.com/articles/s41598-025-98393-2
News
Focused Ultrasound Opens Blood-Brain Barrier to Treat Brain Cancer
Summary: A new study demonstrates that primary brain tumors (gliomas) are particularly receptive to targeted drug delivery using focused ultrasound (FUS) combined with microbubbles. The team developed a high-resolution MRI protocol to track blood-brain barrier [...]
AI’s promise and practical limits in drug discovery
AI tools are becoming increasingly common in early drug discovery, allowing scientists to analyse data and navigate large volumes of research. However, according to Dr Raminderpal Singh, turning that potential into consistent scientific workflows [...]
GHCE Concept
From the preface of the book Global Health Care Equivalency in the Age of Nanotechnology, Nanomedicine and Artificial Intelligence, Edited by Frank Boehm: Since the publication of my first book (Nanomedical Device and Systems [...]
Healthcare Headlines: Challenges and Advances in 2026
Health-related updates reveal financial adjustments by Universal Health Services due to Medicaid reimbursement uncertainties, significant pollution-linked health concerns from French-British oil firm Perenco in Congo, drug trial setbacks, potential restructuring at major medical firms, [...]
Scientists Discover the Brain Protein That Helps Alzheimer’s Spread Through the Brain
Scientists have identified a brain protein that may help Alzheimer’s spread, revealing a potential new target for slowing the disease’s progression. Alzheimer’s disease is closely linked to the accumulation of a toxic form of the protein [...]
How Immune Dysregulation Contributes to Psychiatric Disorders
Introduction Growing evidence suggests that disruptions in immune function may play an important role in the development and progression of psychiatric disorders. However, immune mechanisms probably contribute more strongly in some patients than others, [...]
Electrostatic Discharge Boosts Triboelectric Nanogenerator Current and Enables DC Output
Controlled electrical discharges could enable triboelectric nanogenerators to achieve higher peak currents, extending nano-enabled energy harvesting into chemical processing and self-powered sensing. Paper: Electrostatic discharge as a breakthrough strategy for triboelectric nanogenerators. A new review [...]
Swiss laboratory uses old drugs against rare diseases
Researchers at the University of Geneva are combing through collections of approved drugs to find new therapies for rare diseases – with some success. This approach is gaining traction around the world, while pharmaceutical [...]
Nanozyme Aptasensors Show Promise for Faster Food, Health, and Environmental Testing
By pairing robust artificial enzymes with highly selective aptamers, nanozyme aptasensors could help detect disease biomarkers, pathogens, and contaminants faster, but the review shows that real-world deployment still depends on overcoming matrix interference, biofouling, [...]
Paralyzed Man Feels Sensation Again With Brain Stimulation Device
Aneuroprosthetic system has allowed a man with paralysis to grasp and lift objects and feel touch again. The device helped 42-year-old Keith Thomas of Massapequa, New York, who was paralyzed from the chest down [...]
Global Cancer Cases Could Surge 67% by 2050, New Report Warns
New data reveal major geographic disparities and highlight the urgent need for global action on prevention, early detection, and equitable access to treatment. For roughly one in five people worldwide, cancer will become part [...]
A Deadly Ebola-Like Virus Is Spreading. Are We Ready?
BU virologist Nancy Sullivan says the Bundibugyo outbreak in the Democratic Republic of the Congo underscores the need for broader outbreak preparedness. The death of a nurse marked the moment health officials recognized that [...]
Why Most Animal Viruses Never Become Human Pandemics
From receptor mismatch to risky human-animal interfaces, this article explains why spillover is common but true pandemic emergence remains rare. Introduction Humans are constantly exposed to animal viruses through farming, wildlife contact, and the [...]
Stem cell organoids repair heart microvessels in coronary artery disease models
A Stanford University team has shown that vascular organoids derived from human stem cells can repair the heart’s microvessel network in pigs with ischaemic heart disease – a proof-of-concept advancement that could open new therapeutic [...]
Goodbye GP waiting rooms, hello prevention at home
Prevention is suddenly everywhere in NHS reform. The recent £340m community pharmacy deal is moving more services onto the high street. Community Diagnostic Centres are being expanded, and the Neighbourhood Health Framework sets out [...]
Ebola control is weakened by mistrust and cultural insensitivity
Effective response depends on cooperation with communities and frontline workers, writes Zaeem ul Haq The current Bundibugyo Ebola outbreak in the Democratic Republic of the Congo (DRC) and Uganda is exposing dangerous gaps in [...]
