ArticleInternational journal of nanomedicine2021
Novel Cellulose Fibre-Based Flexible Plasmonic Membrane for Point-of-Care SERS Biomarker Detection in Chronic Wound Healing.
Article in International journal of nanomedicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 27 citations in OpenAlex.
- From Biomarkers to Biosensors: Modern Approaches for the Detection of Matrix Metalloproteinases (MMPs).Biosensors · 2025Review
- A cell-free SHED lysate-hydrogel system for oral ulcer healing with anti-inflammatory and pro-angiogenic effects.Journal of nanobiotechnology · 2025Article
- Recent Advances in Responsive Membrane Functionalization Approaches and Applications.Separation science and technology · 2023Article
- A growing battlefield in the war against biofilm-induced antimicrobial resistance: insights from reviews on antibiotic resistance.Frontiers in cellular and infection microbiology · 2023Review
- Nanobiotechnology: Applications in Chronic Wound Healing.International journal of nanomedicine · 2022Review
- Raman Scattering-Based Biosensing: New Prospects and Opportunities.Biosensors · 2021Review
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWound management is stretching the limits of health systems globally, challenging clinicians to evaluate the effectiveness of their treatments and deliver appropriate care to their patients. Visual inspection and manual measurement of wound size are subjective, often inaccurate and inconsistent. Growth factors, such as pro-inflammatory cytokines and proteases, play important roles in cutaneous wound healing. However, little is known about the point-of-care monitoring of the changes in such markers during the healing process. Here, we explore the capability of surface-enhanced Raman spectroscopy (SERS) as a viable point-of-care platform to monitor the changes of these surrogate indicators of healing status in chronic wounds.
methodsWe developed a biofunctionalized flexible, cost-effective, scalable and easy-to-fabricate plasmonic SERS substrate using cellulose fibre (CF), which is used for sensing of wound markers based on a modified immunoassay method.
resultsWe evaluated and selected the reliable silver nano-island thickness that will be sputtered onto the CF-based substrate for the highest SERS enhancement. Using this biofunctionalized SERS substrate, we detected varying concentrations of MMP-9 (10-5000 ng/mL) and TNF-α (5-100 ng/mL) proteins to model the wound exudates. This SERS detection method demonstrates a linear response within biologically relevant concentrations, ranging from 10 to 500 ng/mL for MMP-9 and 5 to 25 ng/mL for TNF-α for these surrogate indicators.
conclusionOur SERS sensing platform achieved detection limits in the µM to sub-nM range and displayed high sensitivity and selectivity. This could result in a cheap, point-of-care device that provides a non-invasive measure of cutaneous wound healing in real time. We envision that these flexible substrates after activation may be incorporated into wound dressings in future for routine monitoring of wound healing status.
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