1
|
Wu M, Li L, Yu R, Zhang Z, Zhu B, Lin J, Zhou L, Su B. Tailored diffusion limiting membrane for microneedle glucose sensors with wide linear range. Talanta 2024; 273:125933. [PMID: 38503127 DOI: 10.1016/j.talanta.2024.125933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/20/2024] [Accepted: 03/14/2024] [Indexed: 03/21/2024]
Abstract
Continuous glucose monitoring is very important to daily blood glucose control in diabetic patients, but its accuracy is limited by the narrow linear range of the response of biosensor to the glucose concentration because of the oxygen starvation in tissue and the limited maximum conversion rate of glucose oxidase. In this work, a biocompatible diffusion limiting membrane based on two medical-grade polyurethanes is developed via blending modification to restrict the diffusion flux of glucose to match the oxygen concentration and the maximum conversion rate. The expansiveness of the linear range for the nanomaterials-modified electrode in the glucose biosensor can be achieved through the regulation of two polyurethanes, the solvent, and the thickness of the membrane. In addition, the mass transport of hydrogen peroxide and interfering substances is also limited of the membrane. The in vitro experiments demonstrated that the membrane-modified microneedle biosensor exhibited a rapid response to the concentration variation of glucose, a wide linear range that is sufficient to cover the blood concentration of healthy and diabetic people, the ability to resist the oxygen concentration fluctuation and interfering substances, good reproducibility and long-term stability. The custom wearable electrochemical system, possessing these characteristics, has been proven to accurately monitor the blood concentration in a living rat in real time. This demonstrates a significant potential for application in both daily and clinical blood glucose monitoring.
Collapse
Affiliation(s)
- Minfang Wu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China; Internet of Things Research Center Advanced Institute of Information Technology, Peking University, Hangzhou, 310058, China
| | - Liang Li
- Internet of Things Research Center Advanced Institute of Information Technology, Peking University, Hangzhou, 310058, China
| | - Rongying Yu
- Internet of Things Research Center Advanced Institute of Information Technology, Peking University, Hangzhou, 310058, China
| | - Zebo Zhang
- Internet of Things Research Center Advanced Institute of Information Technology, Peking University, Hangzhou, 310058, China
| | - Boyu Zhu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Junshu Lin
- Internet of Things Research Center Advanced Institute of Information Technology, Peking University, Hangzhou, 310058, China
| | - Lin Zhou
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Bin Su
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.
| |
Collapse
|
2
|
Singh R, Gupta R, Bansal D, Bhateria R, Sharma M. A Review on Recent Trends and Future Developments in Electrochemical Sensing. ACS OMEGA 2024; 9:7336-7356. [PMID: 38405479 PMCID: PMC10882602 DOI: 10.1021/acsomega.3c08060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/07/2024] [Accepted: 01/12/2024] [Indexed: 02/27/2024]
Abstract
Electrochemical methods and devices have ignited prodigious interest for sensing and monitoring. The greatest challenge for science is far from meeting the expectations of consumers. Electrodes made of two-dimensional (2D) materials such as graphene, metal-organic frameworks, MXene, and transition metal dichalcogenides as well as alternative electrochemical sensing methods offer potential to improve selectivity, sensitivity, detection limit, and response time. Moreover, these advancements have accelerated the development of wearable and point-of-care electrochemical sensors, opening new possibilities and pathways for their applications. This Review presents a critical discussion of the recent developments and trends in electrochemical sensing.
Collapse
Affiliation(s)
- Rimmy Singh
- Department of Applied Science & Humanities, DPG Institute of Technology and Management, Gurugram 122004, India
| | - Ruchi Gupta
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
| | | | - Rachna Bhateria
- Department of Environmental Science, Maharshi Dayanand University, Rohtak 124001, India
| | - Mona Sharma
- Department of Environmental Studies, Central University of Haryana, Mahendergarh 123031, India
| |
Collapse
|
3
|
Sempionatto JR, Lin M, Yin L, De la Paz E, Pei K, Sonsa-Ard T, de Loyola Silva AN, Khorshed AA, Zhang F, Tostado N, Xu S, Wang J. An epidermal patch for the simultaneous monitoring of haemodynamic and metabolic biomarkers. Nat Biomed Eng 2021; 5:737-748. [PMID: 33589782 DOI: 10.1038/s41551-021-00685-1] [Citation(s) in RCA: 210] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 01/12/2021] [Indexed: 02/02/2023]
Abstract
Monitoring the effects of daily activities on the physiological responses of the body calls for wearable devices that can simultaneously track metabolic and haemodynamic parameters. Here we describe a non-invasive skin-worn device for the simultaneous monitoring of blood pressure and heart rate via ultrasonic transducers and of multiple biomarkers via electrochemical sensors. We optimized the integrated device so that it provides mechanical resiliency and flexibility while conforming to curved skin surfaces, and to ensure reliable sensing of glucose in interstitial fluid and of lactate, caffeine and alcohol in sweat, without crosstalk between the individual sensors. In human volunteers, the device captured physiological effects of food intake and exercise, in particular the production of glucose after food digestion, the consumption of glucose via glycolysis, and increases in blood pressure and heart rate compensating for oxygen depletion and lactate generation. Continuous and simultaneous acoustic and electrochemical sensing via integrated wearable devices should enrich the understanding of the body's response to daily activities, and could facilitate the early prediction of abnormal physiological changes.
Collapse
Affiliation(s)
- Juliane R Sempionatto
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Muyang Lin
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Lu Yin
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Ernesto De la Paz
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Kexin Pei
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Thitaporn Sonsa-Ard
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | | | - Ahmed A Khorshed
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Fangyu Zhang
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Nicholas Tostado
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Sheng Xu
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA.
| | - Joseph Wang
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA.
| |
Collapse
|