Micromotors for Active Delivery of Minerals toward the Treatment of Iron Deficiency Anemia
- Emil KarshalevEmil KarshalevDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Emil Karshalev
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- Yue ZhangYue ZhangDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Yue Zhang
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- Berta Esteban-Fernández de ÁvilaBerta Esteban-Fernández de ÁvilaDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Berta Esteban-Fernández de Ávila
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- Mara Beltrán-GastélumMara Beltrán-GastélumDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Mara Beltrán-Gastélum
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- Yijie ChenYijie ChenDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Yijie Chen
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- Rodolfo Mundaca-UribeRodolfo Mundaca-UribeDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Rodolfo Mundaca-Uribe
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- Fangyu ZhangFangyu ZhangDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Fangyu Zhang
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- Bryan NguyenBryan NguyenDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Bryan Nguyen
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- Yao TongYao TongDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Yao Tong
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- Ronnie H. FangRonnie H. FangDepartment of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Ronnie H. Fang
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- Liangfang Zhang*Liangfang Zhang*E-mail: [email protected]. Tel: 858-246-0999.Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Liangfang Zhang
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- Joseph Wang*Joseph Wang*E-mail: [email protected]. Tel: 858-246-0128.Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United StatesMore by Joseph Wang
Abstract

As the most common nutritional disorder, iron deficiency represents a major public health problem with broad impacts on physical and mental development. However, treatment is often compromised by low iron bioavailability and undesired side effects. Here, we report on the development of active mineral delivery vehicles using Mg-based micromotors, which can autonomously propel in gastrointestinal fluids, aiding in the dynamic delivery of minerals. Iron and selenium are combined as a model mineral payload in the micromotor platform. We demonstrate the ability of our mineral-loaded micromotors to replenish iron and selenium stores in an anemic mouse model after 30 days of treatment, normalizing hematological parameters such as red blood count, hemoglobin, and hematocrit. Additionally, the micromotor platform exhibits no toxicity after the treatment regimen. This proof-of-concept study indicates that micromotor-based active delivery of mineral supplements represents an attractive approach toward alleviating nutritional deficiencies.
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