Magnetic Nanomaterials: Chemical Design, Synthesis, and Potential Applications DOI
Kai Zhu, Yanmin Ju, Junjie Xu

et al.

Accounts of Chemical Research, Journal Year: 2018, Volume and Issue: 51(2), P. 404 - 413

Published: Feb. 7, 2018

ConspectusMagnetic nanomaterials (MNMs) have attracted significant interest in the past few decades because of their unique properties such as superparamagnetism, which results from influence thermal energy on a ferromagnetic nanoparticle. In superparamagnetic size regime, moments nanoparticles fluctuate result energy. To understand fundamental behavior superparamagnetism and develop relevant potential applications, various preparation routes been explored to produce MNMs with desired structures. However, some challenges remain for well-defined magnetic nanostructures, including exchange-coupled nanomagnets, are considered next generation advanced magnets. case, effective synthetic methods required achieve control over chemical composition, size, structure MNMs. For instance, liquid-phase syntheses, set emerging approaches prepare facilitate precise nucleation specific growth processes diverse Among them, high-temperature organic-phase method is an indispensable one microstructures physical/chemical can be tuned by controlling reaction conditions precursor, surfactant, or solvent amounts, temperature time, atmosphere, etc.In this Account, we present overview our progress synthesis MNMs, monocomponent nanostructures (e.g., metals, metal alloys, oxides/carbides) multicomponent (heterostructures nanomagnets). We emphasize method, focused decade. Notably, obtained growing incorporating different functional components together, not only retain functionalities each single component but also possess synergic that emerge interfacial coupling, improved magnetic, optical, catalytic features. Herein, applications covered three representative areas: biomedicine, catalysis, environmental purification. Regarding detect target biological entities after being modified biomolecules, they applied resonance imaging, imaging-guided drug delivery, photothermal therapy. Apart features, performance resulting highly surface will briefly introduced, highlighting its impact methanol oxidation reaction, oxygen reduction hydrogen evolution reactions, Fischer–Tropsch synthesis. Finally, purification, primarily water remediation, highlighted two main aspects: capture bacteria removal adverse ions wastewater.We hope Account clarify controllable compositions, sizes, structures generate broad realms biomedicine catalysis well issues other applications.

Language: Английский

Photothermal therapy and photoacoustic imaging via nanotheranostics in fighting cancer DOI
Yijing Liu, Pravin Bhattarai,

Zhifei Dai

et al.

Chemical Society Reviews, Journal Year: 2018, Volume and Issue: 48(7), P. 2053 - 2108

Published: Sept. 27, 2018

The nonradiative conversion of light energy into heat (photothermal therapy, PTT) or sound (photoacoustic imaging, PAI) has been intensively investigated for the treatment and diagnosis cancer, respectively. By taking advantage nanocarriers, both imaging therapeutic functions together with enhanced tumour accumulation have thoroughly studied to improve pre-clinical efficiency PAI PTT. In this review, we first summarize development inorganic organic nano photothermal transduction agents (PTAs) strategies improving PTT outcomes, including applying appropriate laser dosage, guiding via techniques, developing PTAs absorption in second NIR window, increasing (PCE), also tumours. Second, introduce advantages combining other therapies cancer treatment. Third, emerging applications cancer-related research are exemplified. Finally, perspectives challenges combating especially regarding their clinical translation, discussed. We believe that having noteworthy features would become promising next-generation non-invasive theranostic techniques our ability combat cancers.

Language: Английский

Citations

2459

Nanotechnology for Multimodal Synergistic Cancer Therapy DOI
Wenpei Fan, Bryant C. Yung, Peng Huang

et al.

Chemical Reviews, Journal Year: 2017, Volume and Issue: 117(22), P. 13566 - 13638

Published: Oct. 19, 2017

The complexity, diversity, and heterogeneity of tumors seriously undermine the therapeutic potential treatment. Therefore, current trend in clinical research has gradually shifted from a focus on monotherapy to combination therapy for enhanced treatment efficacy. More importantly, cooperative enhancement interactions between several types contribute naissance multimodal synergistic therapy, which results remarkable superadditive (namely "1 + 1 > 2") effects, stronger than any single or their theoretical combination. In this review, state-of-the-art studies concerning recent advances nanotechnology-mediated will be systematically discussed, with an emphasis construction multifunctional nanomaterials realizing bimodal trimodal as well intensive exploration underlying mechanisms explaining significant improvements outcome. Furthermore, featured applications overcoming tumor multidrug resistance, hypoxia, metastasis also discussed detail, may provide new ways efficient regression even elimination drug resistant, hypoxic solid, distant metastatic tumors. Finally, some design tips outlook future development provided, highlighting key scientific issues technical challenges requiring remediation accelerate translation.

Language: Английский

Citations

1595

Electrochemical sensor and biosensor platforms based on advanced nanomaterials for biological and biomedical applications DOI
Govindhan Maduraiveeran, Manickam Sasidharan, Vellaichamy Ganesan

et al.

Biosensors and Bioelectronics, Journal Year: 2017, Volume and Issue: 103, P. 113 - 129

Published: Dec. 22, 2017

Language: Английский

Citations

793

Ratiometric optical nanoprobes enable accurate molecular detection and imaging DOI
Xiaolin Huang, Jibin Song, Bryant C. Yung

et al.

Chemical Society Reviews, Journal Year: 2018, Volume and Issue: 47(8), P. 2873 - 2920

Published: Jan. 1, 2018

Exploring and understanding biological pathological changes are of great significance for early diagnosis therapy diseases. Optical sensing imaging approaches have experienced major progress in this field. Particularly, an emergence various functional optical nanoprobes has provided enhanced sensitivity, specificity, targeting ability, as well multiplexing multimodal capabilities due to improvements their intrinsic physicochemical properties. However, one the biggest challenges conventional is absolute intensity-dependent signal readout, which causes inaccurate results presence analyte-independent factors that can cause fluctuations intensity. Ratiometric measurements provide built-in self-calibration correction, enabling more sensitive reliable detection. Optimizing nanoprobe designs with ratiometric strategies surmount many limitations encountered by traditional nanoprobes. This review first elaborates upon existing exploit improved imaging, including fluorescence, surface Raman scattering (SERS), photoacoustic Next, a thorough discussion on design these nanoprobes, potential biomedical applications specific biomolecule populations (e.g. cancer biomarkers small molecules physiological relevance), tumor microenvironment pH, reactive oxygen species, hypoxia, enzyme metal ions), intraoperative image guidance tumor-resection procedures.

Language: Английский

Citations

695

Functional and Biomimetic Materials for Engineering of the Three-Dimensional Cell Microenvironment DOI
Guoyou Huang, Fei Li, Xin Zhao

et al.

Chemical Reviews, Journal Year: 2017, Volume and Issue: 117(20), P. 12764 - 12850

Published: Oct. 9, 2017

The cell microenvironment has emerged as a key determinant of behavior and function in development, physiology, pathophysiology. extracellular matrix (ECM) within the serves not only structural foundation for cells but also source three-dimensional (3D) biochemical biophysical cues that trigger regulate behaviors. Increasing evidence suggests 3D character is required development many critical responses observed vivo, fueling surge functional biomimetic materials engineering microenvironment. Progress design such improved control behaviors advanced fields tissue regeneration, vitro models, large-scale differentiation, immunotherapy, gene therapy. However, field still its infancy, discoveries about nature cell–microenvironment interactions continue to overturn much early progress field. Key challenges be dissecting roles chemistry, structure, mechanics, electrophysiology microenvironment, understanding harnessing periodicity drift these factors. This review encapsulates where recent advances appear leave ever-shifting state art, it highlights areas which substantial potential uncertainty remain.

Language: Английский

Citations

676

Persistent luminescence instead of phosphorescence: History, mechanism, and perspective DOI
Jian Xu, Setsuhisa Tanabe

Journal of Luminescence, Journal Year: 2018, Volume and Issue: 205, P. 581 - 620

Published: Sept. 28, 2018

Language: Английский

Citations

570

Recent progress of nanomaterials for microwave absorption DOI Creative Commons
Michael Green, Xiaobo Chen

Journal of Materiomics, Journal Year: 2019, Volume and Issue: 5(4), P. 503 - 541

Published: July 15, 2019

Microwave absorbing materials have received considerable interest over the years for their applications in stealth, communications, and information processing technologies. These often require functionalization at nanoscale so to achieve desirable dielectric magnetic properties which induce interaction with incident electromagnetic radiation. This article presents a comprehensive review on recent research progress of nanomaterials microwave absorption, including basic mechanism absorption (e.g., loss, dielectric/magnetic loss coupling), measurement principle fundamentals analysis, performance evaluation, common pathways: Debye relaxation, Eddy current natural resonance, size shape factors), advances bandwidth, reflection values, peak position) using various nanomaterials, such as carbon nanotubes, fibers, graphenes, oxides, sulfides, phosphides, carbides, polymers metal organic frameworks. Overall, this not only provides an introduction research, but also timely update nanomaterials.

Language: Английский

Citations

497

Nanocarbons for Biology and Medicine: Sensing, Imaging, and Drug Delivery DOI

Nishtha Panwar,

Alana Mauluidy Soehartono, Kok Ken Chan

et al.

Chemical Reviews, Journal Year: 2019, Volume and Issue: 119(16), P. 9559 - 9656

Published: July 9, 2019

Nanocarbons with different dimensions (e.g., 0D fullerenes and carbon nanodots, 1D nanotubes graphene nanoribbons, 2D oxides, 3D nanodiamonds) have attracted enormous interest for applications ranging from electronics, optoelectronics, photovoltaics to sensing, bioimaging, therapeutics due their unique physical chemical properties. Among them, nanocarbon-based theranostics (i.e., diagnostics) is one of the most intensively studied applications, as these nanocarbon materials serve excellent biosensors, versatile drug/gene carriers specific targeting in vivo, effective photothermal nanoagents cancer therapy, promising fluorescent nanolabels cell tissue imaging. This review provides a systematic overview latest theranostic comprehensive comparison characteristics influences on applications. We first introduce allotropes that can be used respective preparation surface functionalization approaches well Theranostic are described separately both vitro vivo systems by highlighting protocols biosystems, followed toxicity biodegradability implications. Finally, this outlines design considerations key unifying themes will foundational principle researchers study, investigate, generate effective, biocompatible, nontoxic materials-based models we summarize an outlook challenges novel using hard-to-treat cancers other diseases. intends present guideline nanotechnology biomedicine selection strategy according requirements.

Language: Английский

Citations

463

Multimodal Biophotonics of Semiconducting Polymer Nanoparticles DOI
Yuyan Jiang, Kanyi Pu

Accounts of Chemical Research, Journal Year: 2018, Volume and Issue: 51(8), P. 1840 - 1849

Published: Aug. 3, 2018

ConspectusBiophotonics as an interdisciplinary frontier plays increasingly important role in modern biomedical science. Optical agents are generally involved biophotonics to interpret biomolecular events into readable optical signals for imaging and diagnosis or convert photons other forms of energy (such heat, mechanical force, chemical radicals) therapeutic intervention biological stimulation. Development new including metallic nanoparticles, quantum dots, up-conversion carbon silica nanoparticles has contributed the advancement this field. However, most these have their own merits demerits, making them less effective multimodal biophotonic platforms.In Account, we summarize our recent work on development near-infrared (NIR) semiconducting polymer (SPNs) light converters advanced biophotonics. SPNs composed π-electron delocalized polymers (SPs) often possess advantages good biocompatibility, high photostability, large absorption coefficients. Because photophysical properties mainly determined by molecular structures precursor polymers, engineering allows us fine tune processes obtain different responses, even second NIR window (1000–1700 nm). Meanwhile, facile nanoformulation methods enable alteration outer inner diverse interactions.The unique brought about ultrasensitive deep-tissue imaging. NIR-absorbing with strong charge-transfer backbones can photoenergy acoustic waves, permitting photoacoustic that bypasses issue scattering reaches centimeter tissue penetration depth. Differently, phenylenevinylene-containing store photon via defects emit long-NIR afterglow luminescence a half-life ∼6 min after cessation excitation. Such process avoids autofluorescence, giving rise ultrahigh signal-to-background ratios. So far, SPN-based probes been developed image disease tissues (tumors), biomarkers (biothiols reactive oxygen species), physiological indexes (pH temperature) preclinical animal models.The synthetic flexibility further permits light-modulated interventions. Till now, photothermal conversion efficiencies shaped transducers remotely regulate protein ion channels, enzymatic activity, gene expression. In conjunction desired biodistribution tumor-homing ability, doped coated inorganic amplified self-regulated photodynamic cancer therapy.This Account thus demonstrates serve nanoplatform provide unprecedented opportunities imaging, noninvasive bioactivation, therapy.

Language: Английский

Citations

439

Engineering of inorganic nanoparticles as magnetic resonance imaging contrast agents DOI
Dalong Ni, Wenbo Bu, Emily B. Ehlerding

et al.

Chemical Society Reviews, Journal Year: 2017, Volume and Issue: 46(23), P. 7438 - 7468

Published: Jan. 1, 2017

This review focuses on the design principles of inorganic nanoparticles to engineer high-performance contrast agents for magnetic resonance imaging.

Language: Английский

Citations

419