Article
Chemistry, Physical
Jiakuan Zhang, Chuyue Li, Jiongzhao Li, Xiaogang Peng
Summary: Size- and shape-controlled CdSe/ZnSe core/shell and CdSe/ZnSe/ZnS core/shell/shell nanocrystals with zinc-blende structure are synthesized. The ligand strain between the inorganic crystal surface and organic ligands plays a key role in ZnSe epitaxy. The lattice strain between the CdSe and ZnSe affects the photoluminescence of CdSe/ZnSe/ZnS core/shell/shell QDs.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Ja-Jung Koo, Kwang Hwan Jung, Kyungsu Park, Won Ja Min, Kyu-Sang Yu, Zee Hwan Kim, Jin-Kyu Lee
Summary: In this study, the interfacial structures of CdSe/ZnS QDs were investigated using TOF-MEIS. The results showed the existence of an alloyed layer at the interface between CdSe and ZnS in typical CdSe/ZnS QDs. The dissolution of CdSe seeds during the synthesis steps was identified as the cause of this interfacial alloying, and the ligand environment of the solvent was found to influence the shape of the interface.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Kai Zhang, Yue Xu, Fan Liu, Guo-Ping Yan, San-Wei Guo
Summary: Novel cooperative ZnS-CdSe@Co/N-C core/shell composites were prepared by chelation and modification, which possessed heterojunction and cocatalyst properties, and showed improved optical absorption and photocatalytic properties.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kai-Ping Chang, Yu-Cheng Yeh, Chung-Jui Wu, Chao-Chun Yen, Dong-Sing Wuu
Summary: CdSe/CdS core/shell quantum dots with different oleylamine (OLA) concentrations were synthesized using a one-pot method. The presence of ZnS diffraction peaks indicated the formation of a ZnS shell on the CdSe/CdS core. Interestingly, QDs with higher OLA concentration exhibited diffraction peaks of ZnS/ZnO, showing better thermal stability and slower decay in photoluminescence intensity. These QDs with tunable emission wavelength are suitable for micro-LED display applications.
Article
Materials Science, Multidisciplinary
Aneeqa Sabah, Imrana Shafaqat, Amin Naifar, Hind Albalawi, Mohammed S. Alqahtani, M. G. B. Ashiq, Syeda Ammara Shabbir
Summary: Highly emissive core-multi-shell (CdSe/CdS/ZnS) quantum dots (QDs) with sizes ranging from 2 nm to 5 nm were synthesized using the hot injection method. Polymer capping agents were employed to enhance the QDs' lifetime without the need for a protective atmosphere. The absorption spectra of CdSe/CdS and CdSe/CdS/ZnS displayed a red shift compared to CdSe core, with peaks at 362 nm, 365 nm, 558 nm, and 556 nm. The band gaps measured by voltammetry (Eg 2.09 eV) were in good agreement with the UV-visible spectroscopic data (Eg 2.65 eV). XRD spectra confirmed the quantum confinement effect, showing distinct peaks corresponding to the (111), (220), and (311) planes of cubic structures for CdSe, CdSe/CdS, and CdSe/CdS/ZnS, respectively. The effective mass model was used to calculate the linear and nonlinear optical susceptibilities and absorption coefficients.
Article
Engineering, Electrical & Electronic
Ruoting An, Heng Gao, Shuangshuang Shi, Guantong Chen, Yonghui Zhang, Chong Geng, Shu Xu
Summary: The study finds that the thickness of SiO2 shell of QD@SiO2 has a significant impact on the optical performance of QCLEDs, with 20-30 nm SiO2 shell showing optimal efficiency at low power density, while 10-15 nm SiO2 shell is more favorable for reducing thermal quenching at high power density.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Chemistry, Physical
Jiajia Ning, Yuan Xiong, Stephen Kershaw, Andrey L. Rogach
Summary: The most efficient way to improve the stability and optical properties of nanocrystals is to grow shell around their cores. Different growth modes of the ZnS shell on ZnSe nanorods were observed depending on the crystal structure of the ZnSe core, leading to differences in photoluminescence quantum yield.
CHEMISTRY OF MATERIALS
(2021)
Article
Optics
Xiudong Cao, Zida Zheng, Yi Zhang, Gangwei Gu, Jialei Miao, Rui Huang, Dejian Hou, Ye Tian, Xiaowei Zhang
Summary: The core/shell CdSe/ZnS QDs embedded in OSTE polymers result in high collection efficiency LSCs with an optimal full-spectrum external quantum efficiency of 2.3%. Coupled with commercial Si solar cells, the LSCs device shows excellent performance with an optical efficiency of up to 3.2% when the QDs doping concentration is 7.2 x 10-3 mg/mL.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Multidisciplinary
Xue Bai, Finn Purcell-Milton, Yurii K. Gun'ko
Summary: Cu-Based quantum dots are being explored as a potential replacement for toxic Cd- or Pb-based QDs, with studies focusing on the impact of different reaction conditions on the resulting morphologies and optical properties. By carefully controlling the ZnS shell deposition, researchers have optimized the synthesis of CIZS/ZnS/ZnS QDs and produced highly fluorescent core/shell/shell heterostructured QDs with high PLQYs. Additionally, the successful creation of giant ZnS shell QDs opens up possibilities for further development in this area.
Article
Nanoscience & Nanotechnology
Swati Mukherjee, Joicy Selvaraj, Thangadurai Paramasivam
Summary: The study presents a synthesis method for non-toxic Ag:ZIS/ZS core/shell QDs, showing that the shell thickness has a significant impact on the photophysics of the QDs.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Paul Cavanaugh, Ilan Jen-La Plante, Christian Ippen, Ruiqing Ma, David F. Kelley, Anne Myers Kelley
Summary: Resonance Raman spectra and absolute cross sections of InP/ZnSe/ZnS core/shell/shell nanocrystals were obtained at different excitation wavelengths, revealing differences in phonon features attributed to various stoichiometries of the structures. The presence of excess indium in the ZnSe shell was found to influence the Raman intensities and frequency distributions, supporting previous assignments of hole trapping at indium defects in the shell.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Hongyue Wang, Jialiang Gao, Miao Zhang, Peng Liu, Yangyang Guo, Huixin Li, Guanguan Zhao, Siliang Hu, Zeyi Cheng, Jianyang Zang, Ruijuan Wen, Taihong Liu, Yu Tong, Zhenhua Sun, Hongqiang Wang
Summary: This work systematically investigates the spectroscopic properties of Mn2+-doped ZnSe/ZnS core-shell quantum dots (QDs). It is found that increasing the doping concentration can enhance the photoluminescence quantum yield (PL QY) of the Mn2+ dopant, but excessive doping leads to the magnetic coupling of Mn2+ ions, resulting in abnormal variations in the photoluminescence intensity and linewidth with temperature.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoqi Hou, Haiyan Qin, Xiaogang Peng
Summary: Auger recombination is effectively reduced in high-quality quantum dots by enhancing dielectric screening of band-edge carriers with additional ZnS shells. The volume scaling of negative-trion Auger lifetime is achieved with ZnS shells, which can be less than half the volume of QDs without these shells, while also enhancing the biexciton emission quantum yield. The engineering of Auger effects through dielectric screening presents new opportunities for improving emission properties in multicarrier states of quantum dots.
Article
Nanoscience & Nanotechnology
Yanbing Lv, Yucheng Yuan, Ning Hu, Na Jin, Dangdang Xu, Ruili Wu, Huaibin Shen, Ou Chen, Lin Song Li
Summary: This study presents a synthesis method for ultra-thick shell quantum dots and their application in C-reactive protein detection, achieving nearly a 3-fold enhancement in detection sensitivity and a 2-fold increase in shelf life. The performance improvements in protein detection are attributed to the use of core/shell quantum dots with high particle stability, high PL QYs, and a large surface area conducive to surface antibody coupling.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Yuan Liu, Cong Zhao, Jingzhou Li, Shixi Zhao, Xiaomin Xu, H. Y. Fu, Cunjiang Yu, Feiyu Kang, Guodan Wei
Summary: The high-performance photodetectors based on environmentally benign CuInS2/ZnS core-shell quantum dots, in combination with organic blend films, achieve efficient energy transfer and charge separation, leading to low dark current and high detectivity. This work demonstrates a feasible strategy to develop highly sensitive photodetectors using heavy-metal-free core-shell quantum dots.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Physics, Applied
Jing Wang, Minchao Qin, Hong Tao, Weijun Ke, Zhao Chen, Jiawei Wan, Pingli Qin, Liangbin Xiong, Hongwei Lei, Huaqing Yu, Guojia Fang
APPLIED PHYSICS LETTERS
(2015)
Article
Polymer Science
Huaqing Yu, Liangbin Xiong, Qingdong Zeng, Sheng Wen, Feng Wang, Genwen Zheng, Yaoming Ding
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
(2015)
Article
Chemistry, Multidisciplinary
Liangbin Xiong, Huaqing Xiao, Qingdong Zeng, Boyun Wang, Sheng Wen, Bihui Li, Yaoming Ding, Huaqing Yu
Article
Physics, Multidisciplinary
Huan Chen, Xiao-Hui Ling, Zhi-Hong Chen, Qian-Guang Li, Hao Lv, Hua-Qing Yu, Xu-Nong Yi
Article
Optics
Jufang Tong, Boyun Wang, Qingdong Zeng, Liangbin Xiong, Rui Yue, Yaoming Ding, Menglin Guo, Huaqing Yu
JOURNAL OF MODERN OPTICS
(2017)
Article
Optics
Boyun Wang, Liangbin Xiong, Qingdong Zeng, Zhihong Chen, Hao Lv, Yaoming Ding, Jun Du, Huaqing Yu
OPTICAL ENGINEERING
(2016)
Article
Chemistry, Physical
Liangbin Xiong, Minchao Qin, Guang Yang, Yaxiong Guo, Hongwei Lei, Qin Liu, Weijun Ke, Hong Tao, Pingli Qin, Songzhan Li, Huaqing Yu, Guojia Fang
JOURNAL OF MATERIALS CHEMISTRY A
(2016)
Article
Optics
Huan Chen, Xiaohui Ling, Qianguang Li, Hao Lv, Huaqing Yu, Xunong Yi
Article
Chemistry, Multidisciplinary
Liangbin Xiong, Huaqing Yu, Changjiang Nie, Yongjun Xiao, Qingdong Zeng, Guangjin Wang, Boyun Wang, Hao Lv, Qianguang Li, Shunsheng Chen
Article
Physics, Fluids & Plasmas
Qingdong Zeng, Fan Deng, Zhiheng Zhu, Yun Tang, Boyun Wang, Yongjun Xiao, Liangbin Xiong, Huaqing Yu, Lianbo Guo, Xiangyou Li
PLASMA SCIENCE & TECHNOLOGY
(2019)
Article
Nanoscience & Nanotechnology
Yongsheng Duan, Yatai Zhu, Kai Li, Quan Wang, Peng Wang, Huaqing Yu, Zaoxue Yan, Xinhong Zhao
Article
Materials Science, Multidisciplinary
Xinhong Zhao, Yongsheng Duan, Kai Li, Yongchu Fang, Xiaoxian Song, Haiting Zhang, Huaqing Yu
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Surgery
Bingqing Yue, Jian Huang, Lei Jing, Huaqing Yu, Dong Wei, Ji Zhang, Wenhui Chen, Jingyu Chen
Summary: This study retrospectively analyzed the treatment of six patients with BO and CD who underwent bilateral lung transplantation, showing that bilateral lung transplantation is a feasible and safe treatment that can improve the quality of life and extend survival for patients with CD and BO.
CLINICAL TRANSPLANTATION
(2022)
Article
Biochemistry & Molecular Biology
Peng-Zhou Hang, Feng-Qin Ge, Man-Ru Zhang, Qi-Hang Li, Hua-Qing Yu, Yu-Chen Song, Dan-Dan Guo, Jing Zhao, Hua Zhu
Summary: The mimetic of brain-derived neurotrophic factor, 7,8-DHF, improves mitochondrial function and cardiac function in cardiovascular disease. It effectively prevents cell death induced by mitochondrial dysfunction and enhances mitochondrial membrane potential, reducing reactive oxygen species. Furthermore, it restores respiratory function and ATP production in cardiomyocytes.
FREE RADICAL BIOLOGY AND MEDICINE
(2023)
Article
Cardiac & Cardiovascular Systems
Peng-Zhou Hang, Pei-Feng Li, Jie Liu, Feng-Feng Li, Ting-Ting Chen, Yang Pan, Man-Ru Zhang, Hua-Qing Yu, Hong-Yu Ji, Zhi-Min Du, Jing Zhao
Summary: This study found that 7,8-DHF can inhibit cardiac hypertrophy and mitochondrial dysfunction by activating the AMPK signaling pathway, providing a potential agent for the treatment of pathological cardiac hypertrophy.
JOURNAL OF GERIATRIC CARDIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.
