Article
Chemistry, Multidisciplinary
Mai Li, Kailan Zhu, Hanxue Zhao, Zheyi Meng, Chunrui Wang, Paul K. Chu
Summary: This study prepares alpha-MnO2 and Fe2O3 nanomaterials on a carbon fiber modified with carbon nanotubes, producing nonbinder core-shell positive and negative electrodes for ultrafast asymmetrical flexible supercapacitors. The electrodes demonstrate excellent electrochemical performance and energy storage properties. The supercapacitors exhibit high energy density, good cycling stability, and flexibility.
Article
Materials Science, Ceramics
Hilal Pecenek, Sevda Yetiman, Fatma Kilic Dokan, M. Serdar Onses, Erkan Yilmaz, Ertugrul Sahmetlioglu
Summary: This study investigates the effect of carbon nanomaterials and MXene addition on MnO2 based supercapacitor electrodes, and finds that MXene based composite materials exhibit the highest specific capacitance and exceptional cycling efficiency. The favorable interaction between MnO2 and nanoscale materials enhances conductivity and surface area, leading to superior supercapacitor efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Applied
Song Lv, Liya Ma, Xinyu Shen, Hua Tong
Summary: Porous carbon nanotubes are a promising electrode material for supercapacitors, with high specific surface area and excellent electrochemical performance. Factors affecting their growth have been identified, and discussions on the relationships between their morphology and structure have been made.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Cheng-Liang Huang, Li-Ming Chiang, Chien-An Su, Yuan-Yao Li
Summary: In this study, MnO2-coated Carbon nanotube (CNT)-embedded carbon nanofiber (CNF) core-shell cables were fabricated for pseudo-capacitators, while activated CNF-CNTs obtained by CO2 activation were used for Electrical double-layer capacitors (EDLCs). The unique structure and high electrical conductivity of the materials led to a specific capacitance of 483.5 F/g using MnO2/CNF-CNT mat with 1 M Na2SO4 aqueous electrolyte.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Jun-Pei Chen, Ying-Shou Ho, Mao-Sung Wu
Summary: Cobalt oxide nanobundle arrays were grown on a stainless steel wire mesh through hydrothermal synthesis and heat treatment to form a supporting platform for manganese oxide deposition, resulting in a CoO@MnO2 core-shell electrode. This electrode showed improved supercapacitive behavior compared to pristine MnO2, with higher charge-storage capacity and reduced transfer resistance.
CERAMICS INTERNATIONAL
(2021)
Article
Electrochemistry
Chen Tang, Kang Zhao, Yufei Tang, Fuping Li, Qingnan Meng
Summary: A hierarchical carbon foam templated rGO/CNTs/MnO2 composite was successfully fabricated by combining the high mechanical stability of carbon foam framework, large specific surface area of graphene, fast charge transfer property of CNTs, and large pseudo-capacitance of MnO2 nanoparticles. The composite exhibited the highest specific capacitance and capacitance retention among three electrodes tested, and showed great potential to replace conventional electrode materials for high energy storage supercapacitors.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Paper & Wood
Jincy Parayangattil Jyothibasu, Ruei-Hong Wang, Kenneth Ong, Juping Hillary Lin Ong, Rong-Ho Lee
Summary: Nanostructured manganese dioxide (MnO2) was homogeneously deposited on a regenerated cellulose/functionalized CNT (f-CNT) matrix through a direct redox reaction between potassium permanganate and carbon nanotubes (CNTs) in an acidic medium. The resulting cellulose/f-CNT/MnO2 composite films showed outstanding electrochemical performance as freestanding electrodes for supercapacitors, with a maximal areal capacitance of 7956 mF cm(-2) achieved for a high MnO2 content composite. The symmetric supercapacitor assembled using the cellulose/f-CNT/MnO2 composite film exhibited high capacitance, energy density, and power density. The simple and environmentally friendly synthetic procedure can be readily scaled up for bulk synthesis.
Article
Materials Science, Multidisciplinary
Xuelin Li, Jianfeng Zhu, Wenyu Liang, Igor Zhitomirsky
Summary: The study presents a simple and direct method to design and fabricate Ti3C2Tx-CNT composite electrodes; the optimized electrodes exhibit higher capacitance than literature results in Na2SO4 electrolyte, laying the foundation for the fabrication of asymmetric aqueous devices operating at 1.6 V.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Taoyuan Niu, Rui Lou, Qihang Cao, Yiyi Zhang, Yanan Zhang, Guodong Wei, Zhiwei Wang
Summary: To enhance the electrochemical performances of lignin-based porous carbon (LPC), 8-MnO2 nanosheets were incorporated within the LPC substrate through in-situ redox deposition. The effects of different LPC supports and KMnO4 solution concentration on the growth of MnO2 and the electrochemical performances of MnO2/LPC composite were investigated. The study demonstrated that the surface topography of 8-MnO2 was influenced by the pores of LPC, and increasing KMnO4 concentration led to improved electrochemical performances of MnO2/LPC. The uniform 3D-interlinked mesoporous nanostructure of Mn-4/LPC-CO composite exhibited superior specific capacitance and energy density, making it promising for energy storage applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Jong Hyeong Lim, Jong Ho Won, Ik-Soo Kim, Mun Kyoung Kim, Hyeokrae Cho, Sang-Mo Koo, Chulhwan Park, Hiesang Sohn, Hyung Mo Jeong, Jong-Min Oh, Weon Ho Shin
Summary: This study developed a homogeneous MnO2 electrode structure with uniformly distributed pores and direct contact between particles, improving ionic and electron transport. The electrodes showed considerably lower charge transfer resistance and double layer capacitance compared to paste-type electrodes, maintaining a high specific capacitance even at high mass loading.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Multidisciplinary
Jae-Min Jeong, Seung Hwa Park, Hong Jun Park, Se Bin Jin, Seon Gyu Son, Jong-Min Moon, Hoyoung Suh, Bong Gill Choi
Summary: This study reports a MnO2/C material with an alternatively stacked and interlayer-expanded structure, which can maintain excellent electrochemical performance under ultra-high mass loading. This structure enables fast and efficient electron and ion transfer in thick electrodes, while also achieving extremely high energy storage capacity.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Kethaki Wickramaarachchi, Manickam Minakshi Sundaram, David J. Henry, Xiangpeng Gao
Summary: Electrolytic manganese dioxide (EMD) synthesized with alginate as a biopolymer additive demonstrated enhanced energy storage capability for electrochemical supercapacitors. The presence of alginate in higher concentrations altered the morphology and particle size of the EMD composites, resulting in a more favorable condition for binding Mn2+ ions and improving capacitance. When coupled with activated carbon, the EMD composite exhibited excellent capacitance retention over 5000 cycles, showing promising potential for energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Pian Zhang, Yun-hao Wu, Hao-ran Sun, Jia-qi Zhao, Zhi-ming Cheng, Xiao-hong Kang
Summary: The MnO2/biomass carbon nanocomposite electrode synthesized in this study showed promising electrochemical performance with high specific capacitance and superior cycling stability. By utilizing biological waste, the study expands the application of MnO2-based electrode materials in next-generation energy storage and conversion devices.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2021)
Article
Acoustics
Bhaskar J. Choudhury, Vijayanand S. Moholkar
Summary: In this study, a ternary nanocomposite with commercial-level mass loading was developed for supercapacitors, demonstrating high capacitive performance and cycle life. The nanocomposite was synthesized using a facile ultrasound-assisted one-pot method, resulting in a porous ternary structure with efficient ion diffusion channels and high electrochemically active surface area.
ULTRASONICS SONOCHEMISTRY
(2022)
Review
Materials Science, Multidisciplinary
Xiao-ning Tang, Shao-kuan Zhu, Jian Ning, Xing-fu Yang, Min-yi Hu, Jiao-jing Shao
Summary: Carbon-based materials such as carbon nanotubes, graphene, and mesoporous carbons are commonly used as electrodes in supercapacitors, but their low capacitances often necessitate the addition of pseudocapacitive materials like manganese dioxide (MnO2). While MnO2 offers high theoretical capacitance, its poor electrical conductivity and phase transformation issues result in lower actual capacitances. Understanding and employing the four charge storage mechanisms of MnO2 is crucial for developing high-performance MnO2/carbon composite electrodes for supercapacitors.
NEW CARBON MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Pei Huang, Changrong Wang, Hongzhang Deng, Yongfeng Zhou, Xiaoyuan Chen
Summary: The development of multifunctional nanoparticles with desired properties is important in the field of nanotechnology and is expected to revolutionize cancer diagnosis and treatment. Surface engineering of nanoparticles is crucial for their in vivo fate, bioavailability, and theranostic outcomes. Different surface functionalities have been utilized to enhance cancer therapy and imaging, including inorganic and organic materials, biomembranes, and targeting moieties. These surface modifications have the potential to be applied in various scenarios and contribute to the clinical translation of NP-based platforms for cancer theranostics.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Lujie Liu, Yuanwei Pan, Chenchen Zhao, Peng Huang, Xiaoyuan Chen, Lang Rao
Summary: Immune checkpoint blockade (ICB) therapy has made significant advancements in cancer treatment, but limited response rates and systemic toxicity hinder its clinical outcomes. Biomaterials have been developed to enhance ICB therapy by increasing tumor antigenicity, reversing immunosuppressive microenvironment, amplifying antitumor immune response, and improving targeted delivery of checkpoint inhibitors. This review discusses current design strategies for biomaterials, their applications in immune modulation and targeted delivery of checkpoint inhibitors for effective ICB therapy, as well as the challenges and future prospects in this field. It is anticipated that this review will contribute to the development of emerging biomaterials for ICB therapy and the advancement of its clinical application.
Article
Chemistry, Multidisciplinary
Yue Hua, Zi-Hui Shao, Aoqiang Zhai, Li-Jun Zhang, Zhao-Yang Wang, Ge Zhao, Fuwei Xie, Jun-Qi Liu, Xueli Zhao, Xiaoyuan Chen, Shuang-Quan Zang
Summary: In this study, atomically precise Au25(S-TPP)18 clusters with both mitochondria-targeting ability and water-solubility were obtained via ligand design. These clusters exhibited higher radiosensitization efficiency, higher ROS production capacity, and inhibited thioredoxin reductase (TrxR). Furthermore, the combination of enhanced radiotherapy-triggered abscopal effect and checkpoint blockade effectively inhibited the growth of distant tumors. This work reveals the ligand-regulated organelle targeting ability of metal clusters and provides feasible strategies for their application in precise theranostics.
Review
Chemistry, Multidisciplinary
Shuang Liang, Jianjun Yao, Dan Liu, Lang Rao, Xiaoyuan Chen, Zhaohui Wang
Summary: Immunotherapy has made significant progress in cancer therapy, but it still faces challenges such as low response rates and immune-related adverse events. Sonodynamic therapy (SDT) has gained attention for treating deep-seated tumors and can trigger systemic anti-tumor immune response through immunogenic cell death. Nanotechnology has revolutionized SDT, leading to the development of innovative nanosonosensitizers and synergistic treatment modalities. This review summarizes the recent advances in cancer sonodynamic immunotherapy and explores how nanotechnology can enhance the anti-tumor immune response.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mengyao Zhao, Hongjun Zhuang, Benhao Li, Meiwan Chen, Xiaoyuan Chen
Summary: A supramolecular coordination-induced nanoparticle cross-linking strategy is developed for enhanced photodynamic therapy by utilizing a complementary functioning tumor microenvironment. The coordinated interaction between manganese oxide and polyhydroxy photosensitizer hypericin improves the energy transfer efficiency and enhances the intracellular accumulation of both upconversion nanoparticles and hypericin. This strategy realizes the function amplification of each component after responsive transformation and offers a new avenue for enhanced cancer therapy.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Yang Zhu, Yaxin Liao, Jianhua Zou, Junjie Cheng, Yuanbo Pan, Lisen Lin, Xiaoyuan Chen
Summary: Nanomaterials with enzyme-mimicking properties, known as nanozymes, have become an alternative to natural enzymes due to their advantages, such as stability, ease of preparation, and catalytic performance. Single atom nanozymes (SAzymes) have recently been developed, showing superior catalytic performance and selectivity, and have made progress in biomedical applications. This review systematically summarizes the recent advances in SAzyme preparation methods, catalytic mechanisms, and biomedical applications, and discusses their potential challenges and prospects for future development.
Article
Multidisciplinary Sciences
Zhao Jiang, Liangrui He, Zhiwen Yang, Huibin Qiu, Xiaoyuan Chen, Xujiang Yu, Wanwan Li
Summary: The study demonstrates a multi-ion co-sensitization strategy for achieving ultrawideband-responsive photon conversion of lanthanide nanocrystals from UV to NIR. The authors show applications for low-powered white light-based bioimaging and excitation-regulated encryption.
NATURE COMMUNICATIONS
(2023)
Review
Engineering, Biomedical
Xin Feng, Long Wei, Yanlin Liu, Xiaoyuan Chen, Rui Tian
Summary: Fluorescence imaging (FLI) is a non-invasive, real-time, and highly sensitive imaging modality for investigating physiological functions and diseases at the molecular/cellular level. The emergence of the second near-infrared window (NIR-II, 1000-1700 nm) has improved the tissue penetration and clarity of fluorescence imaging. Organic fluorescent probes have become important in bioimaging due to their higher biocompatibility, safety, and clinical application potential. This review summarizes different strategies for optimizing NIR-II organic fluorophores, including traditional chemical modifications and emerging bioengineering operations, and proposes a critical perspective on the design strategies of NIR-II dyes for disease imaging.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruijie Huang, Peijie Zhou, Bo Chen, Yang Zhu, Xiaoyuan Chen, Yuanzeng Min
Summary: This study describes a nanotherapeutic platform for targeted drug release in tumors, which has significant antitumor efficacy. By activating the antitumor ability of macrophages, mobilizing T-cell immunity, and promoting the secretion of antitumor cytokines, this platform shows a synergistic effect with immune checkpoint blockers (ICBs).
Review
Chemistry, Multidisciplinary
Xiaoming Hu, Caijun Zhu, Fengwei Sun, Zejing Chen, Jianhua Zou, Xiaoyuan Chen, Zhen Yang
Summary: Near-infrared II (NIR-II) emitters have great potential for in vivo deep-tissue bioimaging and biosensing. This review summarizes the recent progress and structure-property relationships of NIR-II J-aggregates, discusses the molecular regulating strategies for achieving NIR-II J-aggregates, and outlines prospective efforts for promoting clinical applications of NIR-II J-aggregates.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Qing You, Fuming Liang, Gege Wu, Fangfang Cao, Jingyi Liu, Zhaohui He, Chen Wang, Ling Zhu, Xiaoyuan Chen, Yanlian Yang
Summary: Brain diseases pose a serious health threat and are often difficult to treat due to the blood-brain barrier. Biomimetic nanovesicles, a type of nanotechnology, can penetrate the blood-brain barrier and be utilized for drug delivery to the brain. This review discusses the classification and characterization of nanovesicles in various brain diseases, as well as the challenges and applications of nanotechnology-integrated nanovesicles for diagnosis and treatment.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Pei Huang, Hongzhang Deng, Changrong Wang, Yongfeng Zhou, Xiaoyuan Chen
Summary: Messenger RNA (mRNA)-based therapy is a powerful, safe, and rapidly scalable therapeutic approach. In this review, therapeutic applications of mRNA are introduced, common types of mRNA cargos and delivery systems are summarized, and strategies to enhance nanotechnology-mediated mRNA delivery efficiency during the cellular trafficking process are highlighted.
ADVANCED MATERIALS
(2023)
Editorial Material
Pharmacology & Pharmacy
Cuicui Li, Xiaoyuan Chen, Jingjing Zhang
JOURNAL OF PHARMACEUTICAL ANALYSIS
(2023)
Review
Chemistry, Physical
Qing You, Xinyue Shao, Jinping Wang, Xiaoyuan Chen
Summary: Cardiovascular and cerebrovascular diseases (CCVDs) are major vasculature-related diseases with significant impact on public health worldwide, causing serious mortality and disability. Traditional CCVD treatment drugs lack specific targeting and may cause damage to other tissues and organs, necessitating more specific approaches. Micro/nanomotors, new materials that convert external energy into autonomous movement, offer enhanced penetration depth and retention rates, as well as increased contact areas with lesion sites. Physical field-regulated micro/nanomotors using energy sources like magnetic field, light, and ultrasound, provide patient-friendly and effective therapeutic tools to overcome limitations of conventional CCVD treatments. Recent advancements suggest physical field-regulated micro/nanomotors could offer efficient therapeutic effects and intelligent control for CCVD treatments.
Review
Chemistry, Physical
Yanhao Wang, Shan-Ting Zhang, Le Li, Xinbo Yang, Linfeng Lu, Dongdong Li
Summary: This article discusses the application of dopant-free passivating contact in c-Si solar cells, which can replace traditional doped Si thin films to reduce parasitic optical absorption loss and expensive deposition processes. Cell performance can be further improved by optimizing material properties, structural and interfacial engineering, as well as post-treatments.
