1
|
Feng F, Zhang Y, Zhang X, Mu B, An Q, Wang P. The mechanism of intrinsic peroxidase (POD)-like activity of attapulgite. Anal Bioanal Chem 2024:10.1007/s00216-024-05280-2. [PMID: 38602542 DOI: 10.1007/s00216-024-05280-2] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/08/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024]
Abstract
Natural attapulgite (ATP) is a promising substitute for existing artificial nanozymes due to its intrinsic enzymatic activity. However, the active center of ATP's inherent enzymatic activity has not yet been revealed, which limits its further design and activity optimization. Studying the active center of mineral materials can be extremely challenging due to their complexity. Here, we demonstrated that Fe is the primary element in ATP responsible for peroxidase (POD)-like activity through theoretical speculation and experimental verification. More importantly, we found that the ratio of Fe2+/Fe3+ is responsible for the district POD-like activity of ATP from different regions with the same Fe content. Additionally, three facile strategies, including grinding, heat treatment, and acid treatment, were demonstrated to increase the relative Fe content and thus optimize the POD-like activity of ATP. Finally, ATP was used to detect the concentration of H2O2, enabling the detection of low concentrations (0.11-1.76 mM) of H2O2. This study serves as a novel reference for the future design and performance optimization of nanozymes that are based on ATP and clay minerals.
Collapse
Affiliation(s)
- Feng Feng
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Yihe Zhang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Xiao Zhang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Bin Mu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, Gansu, China
| | - Qi An
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Peixia Wang
- National Anti-Drug Laboratory Beijing Regional Center, Beijing, 100164, China.
- Beijing Narcotics Control Technology Center, Beijing, 100164, China.
| |
Collapse
|
2
|
Yu T, Cai Z, Chang X, Xing C, White S, Guo X, Jin J. Research Progress of Nanomaterials in Chemotherapy of Osteosarcoma. Orthop Surg 2023; 15:2244-2259. [PMID: 37403654 PMCID: PMC10475694 DOI: 10.1111/os.13806] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 05/05/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023] Open
Abstract
Osteosarcoma (OS) is a common malignant bone tumor that occurs mostly in children and adolescents. At present, surgery after chemotherapy or postoperative adjuvant chemotherapy is the main treatment plan. However, the efficacy of chemotherapeutic drugs is limited by the occurrence of chemotherapeutic resistance, toxicity to normal cells, poor pharmacokinetic performance, and drug delivery failure. The delivery of chemotherapy drugs to the bone to treat OS may fail for a variety of reasons, such as a lack of selectivity for OS cells, initial sudden release, short-term release, and the presence of biological barriers (such as the blood-bone marrow barrier). Nanomaterials are new materials with at least one dimension on the nanometer scale (1-100 nm) in three-dimensional space. These materials have the ability to penetrate biological barriers and can accumulate preferentially in tumor cells. Studies have shown that the effective combination of nanomaterials and traditional chemotherapy can significantly improve the therapeutic effect. Therefore, this article reviews the latest research progress on the use of nanomaterials in OS chemotherapy.
Collapse
Affiliation(s)
- Tianci Yu
- The Second Clinical Medical CollegeLanzhou UniversityLanzhouChina
| | - Zongyan Cai
- The Second Clinical Medical CollegeLanzhou UniversityLanzhouChina
| | - Xingyu Chang
- The First Clinical Medical CollegeLanzhou UniversityLanzhouChina
| | - Chengwei Xing
- The Second Clinical Medical CollegeLanzhou UniversityLanzhouChina
| | - Sylvia White
- Pathology DepartmentYale School of MedicineNew HavenCTUSA
| | - Xiaoxue Guo
- The Second Clinical Medical CollegeLanzhou UniversityLanzhouChina
| | - Jiaxin Jin
- The Second Clinical Medical CollegeLanzhou UniversityLanzhouChina
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouChina
- Department of OrthopaedicsThe Second Hospital of Lanzhou UniversityLanzhouChina
| |
Collapse
|