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Meng N, Zhou C, Sun Z, Chen X, Xiong S, Tao M, Qin Y, Hu K, Ma L, Tian D, Zhu F, Yang Y. Tailored gelatin methacryloyl-based hydrogel with near-infrared responsive delivery of Qiai essential oils boosting reactive oxygen species scavenging, antimicrobial, and anti-inflammatory activities for diabetic wound healing. Int J Biol Macromol 2024; 263:130386. [PMID: 38395288 DOI: 10.1016/j.ijbiomac.2024.130386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
The management of diabetic wounds poses a substantial economic and medical burden for diabetic patients. Oxidative stress and persistent bacterial infections are considered to be the primary factors. Qiai essential oil (QEO) exhibits various pharmacological characteristics, including inflammatory-reducing, antibacterial, and antioxidant properties. Nevertheless, the hydrophobic nature and propensity for explosive release of this substance present constraints on its potential for future applications. Here, we developed a stimulus-responsive hydrogel to overcome the multiple limitations of QEO-based wound dressings. The QEO was encapsulated within graphene oxide (GO) through repeated extrusion using an extruder. Subsequently, QEO@GO nanoparticles were incorporated into a Gelatin-methacryloyl (GelMA) hydrogel. The QEO@GO-GelMA hydrogel demonstrated controlled release ablation, photothermal antibacterial effects, and contact ablation against two representative bacterial strains. It effectively reduced reactive oxygen species (ROS) generation, promoted angiogenesis, and decreased levels of the pro-inflammatory cytokine interleukin-6 (IL-6), thereby accelerating the healing process of diabetic wounds. In addition, in vitro and in vivo tests provided further evidence of the favorable biocompatibility of this multifunctional hydrogel dressing. Overall, the QEO@GO-GelMA hydrogel provides numerous benefits, encompassing antimicrobial properties, ROS-scavenging abilities, anti-inflammatory effects, and the capacity to expedite diabetic wound healing. These attributes make it an optimal choice for diabetic wound management.
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Affiliation(s)
- Na Meng
- Department of Cardiovascular Medicine, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Chuchao Zhou
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Zhiwei Sun
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Xiangru Chen
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Shaotang Xiong
- The Second People's Hospital of China Three Gorges University, The Second People's Hospital of Yichang, Hubei, China
| | - Mengjuan Tao
- Department of Clinical Laboratory, Wuhan Center for Clinical Laboratory, Wuhan, Hubei, China
| | - Yueyue Qin
- Department of Cardiovascular Medicine, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Keqiang Hu
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Liya Ma
- The Centre of Analysis and Measurement of Wuhan University, Wuhan University, Wuhan 430072, China
| | - Di Tian
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Department of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Fen Zhu
- Department of Cardiovascular Medicine, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China.
| | - Yanqing Yang
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China.
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Liu W, Yao Y, Liu Q, Chen X. Photothermal hydrogel-integrated paper-based point-of-care platform for visible distance-readout of glucose. Anal Chim Acta 2024; 1285:342035. [PMID: 38057044 DOI: 10.1016/j.aca.2023.342035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND The accurate detection of glucose and cholesterol plays a pivotal role in disease diagnosis and home care. To this end, biochemical analyzers have become extensively utilized tools for measuring disease biomarkers. Nonetheless, their poor portability and high cost have restricted their accessibility, limiting their use to laboratory settings and hindering the adoption of point-of-care testing (POCT). In contrast, the emergence of portable and affordable paper-based testing platform has revolutionized diagnostic testing by providing distance signals, enhancing intuitiveness and visual accessibility. Consequently, these platforms have become increasingly suitable for POCT. RESULTS We have developed a POCT platform that integrated AuNS@Ag, stimulus-responsive hydrogel and test strips, enabling visual distance reading of glucose. The silver-coated AuNS and enzyme were encapsulated within a temperature-responsive N-isopropylacrylamide-acrylamide (NIPAM-AcAm) hydrogel to act as target recognition and reaction units respectively. Glucose can diffuse freely within the hydrogel porous matrix, thereby instigating enzyme-catalyzed reaction that induce alterations in the photothermal effect of the system. This dynamic process ensures efficient and responsive modulation of the system's photothermal properties. By ingeniously capturing distance signals induced by the photothermal effect-mediated water release the visualization and quantification of target substances are achieved, with a linear range spanning from 0 to 30 mM. The consistency between distance-based POCT platform and commercial blood glucose meter demonstrates that the platform provides a portable, affordable and reliable method for visual reading biomarkers. SIGNIFICANCE The proposed strategy enables direct, visual quantitative analysis of the target without the need for additional analytical instruments. Particularly, this method holds significant promise as an efficient platform for cholesterol and other disease markers measurement.
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Affiliation(s)
- Wei Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Yao Yao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Qi Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
| | - Xiaoqing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
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