Tailored Micromagnet Sorting Gate for Simultaneous Multiple Cell Screening in Portable Magnetophoretic Cell‐On‐Chip Platforms DOI Creative Commons
Jonghwan Yoon, Yumin Kang, Hyeonseol Kim

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(27)

Published: March 5, 2024

Abstract Conventional magnetophoresis techniques for manipulating biocarriers and cells predominantly rely on large‐scale electromagnetic systems, which is a major obstacle to the development of portable miniaturized cell‐on‐chip platforms. Herein, novel magnetic engineering approach by tailoring nanoscale notch disk micromagnet using two‐step optical thermal lithography developed. Versatile manipulations are demonstrated, such as separation trapping, carriers mediating changes in domain structure discontinuous movement energy wells around circumferential edge caused locally fabricated nano‐notch low field system. The motion well regulated configuration strength frequency field, accompanying jump carriers. proposed concepts demonstrate that multiple can be manipulated sorted optimized multi‐notch gates magnetophoretic This highlights potential developing cost‐effective point‐of‐care testing lab‐on‐chip systems various single‐cell‐level diagnoses analyses.

Language: Английский

Emerging Multifunctional Carbon‐Nanomaterial‐Based Biosensors for Cancer Diagnosis DOI Creative Commons

Jolitta Sheri John Britto,

Xinwei Guan, Thi Kim Anh Tran

et al.

Small Science, Journal Year: 2024, Volume and Issue: 4(3)

Published: Jan. 22, 2024

Despite significant advancements in medical technology, cancer remains the world's second‐leading cause of death, largely attributed to late‐stage diagnoses. While traditional detection methodologies offer foundational insights, they often lack specificity, affordability, and sensitivity for early‐stage identification. In this context, development biosensors offers a distinct possibility precise rapid identification biomarkers. Carbon nanomaterials, including graphene, carbon nitride, quantum dots, other carbon‐based nanostructures, are highly promising detection. Their simplicity, high sensitivity, cost‐effectiveness contribute their potential field. This review aims elucidate emerging carbon‐nanomaterial‐based early diagnosis. The relevance various biosensor mechanisms performance physicochemical properties nanomaterials is discussed depth, focusing on demonstrating broad creating biosensors. Diverse techniques, such as electrochemical, fluorescence, surface plasmon resonance, electrochemiluminescence, quartz crystal microbalance, emphasized At last, summary existing challenges future outlook field elaborated.

Language: Английский

Citations

20

Medical micro- and nanomotors in the body DOI Creative Commons
Huaan Li,

Fei Peng,

Xiaohui Yan

et al.

Acta Pharmaceutica Sinica B, Journal Year: 2022, Volume and Issue: 13(2), P. 517 - 541

Published: Oct. 13, 2022

Attributed to the miniaturized body size and active mobility, micro- nanomotors (MNMs) have demonstrated tremendous potential for medical applications. However, from bench bedside, massive efforts are needed address critical issues, such as cost-effective fabrication, on-demand integration of multiple functions, biocompatibility, biodegradability, controlled propulsion in vivo navigation. Herein, we summarize advances biomedical MNMs reported past two decades, with particular emphasis on design, propulsion, navigation, abilities biological barriers penetration, biosensing, diagnosis, minimally invasive surgery targeted cargo delivery. Future perspectives challenges discussed well. This review can lay foundation future direction MNMs, pushing one step forward road achieving practical theranostics using MNMs.

Language: Английский

Citations

61

A diatom-based biohybrid microrobot with a high drug-loading capacity and pH-sensitive drug release for target therapy DOI
Mengyue Li,

Junfeng Wu,

Daojing Lin

et al.

Acta Biomaterialia, Journal Year: 2022, Volume and Issue: 154, P. 443 - 453

Published: Oct. 13, 2022

Language: Английский

Citations

51

Recent Advances in One-Dimensional Micro/Nanomotors: Fabrication, Propulsion and Application DOI Creative Commons
Yuhong Zheng, He Zhao, Yue‐Peng Cai

et al.

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 15(1)

Published: Dec. 29, 2022

Due to their tiny size, autonomous motion and functionalize modifications, micro/nanomotors have shown great potential for environmental remediation, biomedicine micro/nano-engineering. One-dimensional (1D) combine the characteristics of anisotropy large aspect ratio 1D materials with advantages functionalization revolutionary applications. In this review, we discuss current research progress on micro/nanomotors, including fabrication methods, driving mechanisms, recent advances in remediation biomedical applications, as well challenges possible solutions. With continuous attention innovation, advancement will pave way continued development micro/nanomotor field.

Language: Английский

Citations

46

Magnetically driven microrobots: Recent progress and future development DOI Creative Commons

Honglin Shen,

Shuxiang Cai, Zhen Wang

et al.

Materials & Design, Journal Year: 2023, Volume and Issue: 227, P. 111735 - 111735

Published: Feb. 13, 2023

Microrobots have received extensive attention in the past few decades, and in-depth research of micro-nano processing technology materials has promoted further development microrobots. Researchers successfully achieved use chemical fuels, electric, sound, magnetic fields to promote movement Among many power sources, attracted wide because their advantages including remote wireless operation harmlessness human body. After decades development, magnetically driven microrobots been extensively studied cargo transportation, cell manipulation, toxic substance removal, micromanipulation. This article first summarizes driving methods recent years, then for manufacturing microrobots, shapes typical spiral, spherical, linear structures. that, are sorted out, application magnetic-driven biomedicine other years is summarized. Finally, prospects discussed.

Language: Английский

Citations

40

Responsive Magnetic Nanocomposites for Intelligent Shape-Morphing Microrobots DOI
Yuan Liu, Gungun Lin, Mariana Medina‐Sánchez

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(10), P. 8899 - 8917

Published: May 4, 2023

With the development of advanced biomedical theragnosis and bioengineering tools, smart soft responsive microstructures nanostructures have emerged. These structures can transform their body shape on demand convert external power into mechanical actions. Here, we survey key advances in design polymer–particle nanocomposites that led to shape-morphing microscale robotic devices. We overview technological roadmap field highlight emerging opportunities programming magnetically nanomaterials polymeric matrixes, as magnetic materials offer a rich spectrum properties be encoded with various magnetization information. The use fields tether-free control easily penetrate biological tissues. nanotechnology manufacturing techniques, microrobotic devices realized desired reconfigurability. emphasize future fabrication techniques will bridging gaps between integrating sophisticated functionalities nanoscale reducing complexity footprints intelligent robots.

Language: Английский

Citations

38

Biomedical Micro‐/Nanomotors: Design, Imaging, and Disease Treatment DOI
Wei Liu, Ya Liu, He Li

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(15)

Published: Jan. 25, 2023

Abstract Untethered mobile micro‐/nanomotors (MNMs), as newly‐emerging attractive and versatile nanotechnologies, are expected to be the next‐generation disease treatment tools, for breaking through limitations of conventional passive drug delivery manner. However, advances in these fascinating platforms have been hampered by complexity biological environment particularity microenvironment. Consequently, specific design strategies clinical imaging techniques essential ensure high‐efficiency biomedical MNMs on actuation, targeting, localization, therapy when performing assigned vivo tasks. This review thus comprehensively addresses three aspects MNMs, including design, imaging, treatment, highlighting intelligent with biomimetic functionality chemotactic capability, emphasizing applicability different techniques, focusing various proof‐of‐concept studies based physiological characteristics major diseases. In addition, key challenges current addressed, which may inspire future research facilitate translation toward treatment.

Language: Английский

Citations

33

Roadmap for Clinical Translation of Mobile Microrobotics DOI Creative Commons
Ugur Bozuyuk, Paul Wrede, Erdost Yıldız

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(23)

Published: Feb. 21, 2024

Medical microrobotics is an emerging field to revolutionize clinical applications in diagnostics and therapeutics of various diseases. On the other hand, mobile has important obstacles pass before translation. This article focuses on these challenges provides a roadmap medical microrobots enable their use. From concept "magic bullet" physicochemical interactions complex biological environments applications, there are several translational steps consider. Clinical translation only possible with close collaboration between experts researchers address technical microfabrication, safety, imaging. The application potential can be materialized by designing that solve current main challenges, such as actuation limitations, material stability, imaging constraints. strengths weaknesses progress discussed for near future outlined.

Language: Английский

Citations

12

Ultrasensitive lab-on-paper electrochemical device via heterostructure copper/cuprous sulfide@N-doped C@Au hollow nanoboxes as signal amplifier for alpha-fetoprotein detection DOI
Yuanyuan Li, Rong Huang,

Yi Duan

et al.

Biosensors and Bioelectronics, Journal Year: 2024, Volume and Issue: 267, P. 116827 - 116827

Published: Sept. 30, 2024

Language: Английский

Citations

12

Heterogeneous Sensor-Carrier Microswarms for Collaborative Precise Drug Delivery toward Unknown Targets with Localized Acidosis DOI

Shuming Zhang,

Fangzhi Mou,

Zheng Yu

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 24(20), P. 5958 - 5967

Published: May 13, 2024

Micro/nanorobots hold the potential to revolutionize biomedicine by executing diverse tasks in hard-to-reach biological environments. Nevertheless, achieving precise drug delivery unknown disease sites using swarming micro/nanorobots remains a significant challenge. Here we develop heterogeneous swarm comprising sensing microrobots (sensor-bots) and drug-carrying (carrier-bots) with collaborative tasking capabilities for toward sites. Leveraging robust interspecific hydrodynamic interactions, sensor-bots carrier-bots spontaneously synchronize self-organize into stable microswarms. Given that can create real-time pH maps employing pH-responsive structural-color changes doxorubicin-loaded exhibit selective adhesion acidic targets via charge reversal, sensor-carrier microswarm, when exploring environments, detect localize uncharted targets, guide itself cover area, finally deploy therapeutic precisely there. This versatile platform holds promise treating diseases localized acidosis inspires future theranostic microsystems expandability, task flexibility, high efficiency.

Language: Английский

Citations

10