MXene-based electrochemical glucose biosensors: Comparative enhancement with Aquivion and Nafion

 Enhancing Electrochemical Glucose Biosensors with Ti₃C₂Tₓ MXenes

Diabetes remains one of the most significant global health challenges, affecting hundreds of millions of people worldwide. Continuous glucose monitoring is essential for effective disease management and prevention. In this study, researchers explored the potential of Ti₃C₂Tₓ MXenes as modifiers for the working electrode in electrochemical glucose biosensors, achieving substantial performance improvements compared to conventional designs.

Schematic representation of working electrode development and electrochemical measurement of glucose concentrationThe incorporation of Ti₃C₂Tₓ MXenes markedly enhanced sensor sensitivity and stability. The addition of Nafion or Aquivion as ionomer binders improved coating uniformity and layer adhesion, addressing issues of incomplete MXene coverage and surface instability. Optimization of polymer concentration proved essential for maintaining a balance between morphology, mechanical stability, and electrochemical activity. Among the redox mediators tested, phenazine methosulfate (PMS) demonstrated the most efficient electron transfer and superior overall sensor performance.

The resulting MXene-based biosensors exhibited:

A practical linear glucose detection range (0.1–5 mM)

Low limits of detection (23–48 μM)

High sensitivities (up to 97.5 μA mM⁻¹ cm⁻²)

Excellent repeatability and reproducibility

Importantly, the developed biosensors successfully detected glucose in human serum samples, confirming their practical applicability.

This work provides valuable insights into the use of pristine Ti₃C₂Tₓ MXenes (rather than composites) as promising materials for next-generation glucose biosensors. The study underscores the importance of surface chemistry, film stability, and polymer optimization in achieving high-performance sensing platforms. Future research should focus on exploring the effects of MXene deposition methods, flake size, and enzyme immobilization strategies to further improve analytical performance and ensure long-term stability in real-world biomedical applications.

 

News from MRC.ORG.UA

MXene-based electrochemical glucose biosensors: Comparative enhancement with Aquivion and Nafion

Schematic representation of working electrode development and electrochemical measurement of glucose concentrationThis work provides valuable insights into the use of pristine Ti₃C₂Tₓ MXenes (rather than composites) as promising materials for next-generation glucose biosensors. The study underscores the importance of surface chemistry, film stability, and polymer optimization in achieving high-performance sensing platforms. 

 
Engineering Safer MXenes for Biomedical Applications: Effects of Etching and Delamination on Biocompatibility of Ti-Based MXenes

MXenes for biomedical useMXenes potential applications include sensors, wound healing materials, and drug delivery systems. A recent study explored how different synthesis methods affect the safety and performance of MXenes. By comparing etching conditions and intercalation strategies, researchers discovered that fine-tuning the surface chemistry of MXenes plays a crucial role in improving biocompatibility. These results provide practical guidelines for developing safer MXenes and bring the field one step closer to real biomedical applications.

 
RIC2D MX-Innovation project on MXene production for water desalination and medical diagnostics takes off — Ukraine-based MXene manufacturing company Carbon-Ukraine (Y-Carbon LLC) on board!

MXene Carbon-Ukraine company in MX-Innovation project RIC2D with Dreexl University and Khakifa University

Carbon-Ukraine team is very exited to particpate in newly launched "MX-Innovation" three-year multinational collaboration project led by Prof. Yury Gogotsi, Drexel University (USA) to produce MXene nanomaterials. The project, which is a collaboration with Drexel University USA, Kalifa University in the UAE, the University of Padua in Italy and the Kyiv, Ukraine-based MXene manufacturing company Carbon-Ukraine, seeks to use MXene for water desalination and medical diagnostics. 

 
Joint patent application MRC, Carbon-Ukraine and Drexel University on highly porous MAX phase precursor for MXene synthesis published!

altExellent news, our joint patent application with Drexel University on highly porous MAX phase precursor for MXene synthesis published. Congratulations and thanks to all team involved!

 
MXene Symposium "The MXene Frontier: Transformative Nanomaterials Shaping the Future", IEEE NAP-2025 International Conference Bratislava, September 7-12, 2025

MXene Symposium 2025 in BratislavaOur team was very delighted to take part in International Symposium "The MXene Frontier: Transformative Nanomaterials Shaping the Future" – the largest MXene event in Europe this year!  

 
Join us at the IEEE NAP-2025 International Symposium on "The MXene Frontier: Transformative Nanomaterials Shaping the Future", Bratislava, September 7-12, 2025

MXene Symposium 2025 in BratislavaLast Call! Have you submitted your abstract for IEEE NAP-2025 yet? Join us at the International Symposium on "The MXene Frontier: Transformative Nanomaterials Shaping the Future" – the largest MXene-focused conference in Europe this year!  Final Submission Deadline: May 15, 2025. Don’t miss this exclusive opportunity to showcase your research and engage with world leaders in the MXene field!

 
New Publication Alert: "MXenes in Healthcare: Transformative Applications and Challenges in Medical Diagnostics and Therapeutics"

MXene in healthcareWe are excited to announce the publication of latest review article on MXenes in Healthcare. This comprehensive review explores the groundbreaking role of MXenes—an emerging class of 2D materials—in revolutionizing the fields of medical diagnostics and therapeutics.  Read the full article here: https://doi.org/10.1039/D4NR04853A.

 
Pulsed Electrochemical Exfoliation for an HF-Free Sustainable MXene Synthesis

Electrochemical etching of Ti 3 AlC 2 pellet electrodes in aqueous electrolytes: Set-up and workflow with schematic mechanisms to generatedelaminated EC-MXene flakesCongratulations and thank you to our collaborators from TU Wien and CEST for very interesting work and making it published! In this work, an upscalable electrochemical MXene synthesis is presented. Yields of up to 60% electrochemical MXene (EC-MXene) with no byproducts from a single exfoliation cycle are achieved.

 
Elucidation of Potential Genotoxicity of MXenes Using a DNA Comet Assay

Potential Genotoxicity of MXenes Using a DNA Comet Assay. ACS Appl. Bio Mater. 2024, 7, 12, 8351-8366Congratulations to all collaborators with this interesting joint work!

 MXenes are among the most diverse and prominent 2D materials. They are being explored in almost every field of science and technology, including biomedicine. Despite their proven biocompatibility and low cytotoxicity, their genotoxicity has not been addressed, so we investigated whether MXenes interfere with DNA integrity in cultured cells and examined the fragmentation of their chromosomal DNA by a DNA comet assay. 

 
Ti₃C₂Tₓ MXene–silk fibroin composite films: engineering DC conductivity and properties in the THz range

MXene-silk composite film studyThank you to our collaborators for the amazing joint work recently published in Graphene and 2D Nanomaterials about  MXene–silk fibroin composite films aiming to develop materials with tunable electronic and thermal properties

 
2024 MRS Fall Meeting & Exhibit, Boston, Massachusetts, from December 1-6, 2024

2024 MRS Fall Meeting & Exhibit, Poster Session, from left to right: Prof. Yury Gogotsi, Prof. Maksym Pogorielov, Prof. Goknur Buke, Dr. Babak Anasori and Dr. Oleksiy GogotsiDr. Oleksiy Gogotsi, director of MRC and Carbon-Ukraine, innovative companies that are among the leaders on the world MXene market, visited 2024 MRS Fall Meeting & Exhibit. together with Dr. Maksym Pogorielov, Head of Advanced Biomaterials and Biophysics Laboratory, University of Latvia.

 
Electrochemical real-time sensor for the detection of Pb(II) ions based on Ti3C2Tx MXene

Action of MXene-modified electrode in sensor application

We are proud to present our collaborative paper on an electrochemical real-time sensor for the selective detection of Pb(II) ions, powered by Ti₃C₂Tₓ MXene. Big thank you to our collaborators from Vilnius for extensive experiments and to make it published! This work lays the foundation for further development of in situ electrochemical sensors based on MXenes and their potential integration into lab-on-a-chip systems, enabling fast, portable, and cost-effective measurements for a wide range of applications.

 
Our team participated in the 3rd International Conference at Drexel University "MXene: Changing the World", August 5-7, 2024

3rd international MXene Confernce at Drexel University, August 5-7, 2024, Philadelphia, USAMRC and Carbon-Ukraine team visited the 3rd International MXene conference held at Drexel University on August 5-8, 2024. Conference brought together the best reserchers and leading experts on MXene field. 

 
Visit to our project partners from Worcester Polytechnic Institute that joined to ESCULAPE research project consortium

Visiting Functional Biomaterials Lab at Worcester Polytechnic Institute led by Dr. Jeannine Coburne

Looking forward to work together with Dr. Lyubov Titova and Dr. Jeannine Coubourne from Worcester Polytechnic Institute on structural and biomedical applications of MXenes and study of their properties within HORIZON EUROPE MSCA RISE ESCULAPE project!

 
MXenes for biomedical applications: MXene-Polydopamine-antiCEACAM1 Antibody Complex as a Strategy for Targeted Ablation of Melanoma

MXene-Polydopamine-antiCEACAM1 Antibody Complex fro cancer therapyTogether with colleagues from the University of Latvia, MRC/Carbone Ukraine, Adam Mickiewicz University, University Clinic Essen, and others, we have developed a novel concept involving the binding of antibodies to MXenes. In our research, we utilized anti-CEACAM1 antibodies to develop targeted photo-thermal therapy for melanoma (in vitro), paving the way for future in vivo studies and clinical trials. For the first time, we demonstrate the feasibility of delivering MXenes specifically targeted to melanoma cells, enabling the effective ablation of cancer cells under near-infrared (NIR) light. This new technique opens up vast potential for the application of MXenes in cancer treatment, diagnostics, drug delivery, and many other medical purposes.