Article
Spectroscopy
Jian Zhu, Li-na Meng, Xin Li, Guo-jun Weng, Jian-jun Li, Jun-wu Zhao
Summary: This paper investigates the fluorescence quenching characteristics of Au-Ag-Pt core-shell nanorods and successfully prepares a specific detection probe for AFP. The quenching effect can be optimized by adjusting the concentration of chloroplatinic acid, and surface modification ensures sensing specificity. The specific detection limit for AFP is 4.0 pg/mL, with a linear detection range of 0.03-0.5 ng/mL.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Multidisciplinary
Zhiwei Qiu, Yitong Xue, Jiyong Li, Yunzhi Zhang, Xinyi Liang, Congying Wen, Houjian Gong, Jingbin Zeng
Summary: Ammonia is an important component of the atmosphere with environmental balancing role, but it is also a toxic gas that can damage respiratory system and mucous membranes. Researchers have developed an optical probe for detecting ammonia concentration, showing potential for environmental monitoring applications.
CHINESE CHEMICAL LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Jingxuan Xu, Chaoyi Ban, Fei Xiu, Zhihui Tian, Wenjie Jiang, Minjie Zhang, Heshan Zhang, Zhe Zhou, Juqing Liu, Wei Huang
Summary: A bioinspired stretchable electronic skin with interactive color changes and four-mode sensing properties has been proposed, which demonstrates sensitive responses to various stimuli including pressure, strain, voltage, and temperature. The sensing visualization is achieved through color changes of the e-skin as a response to intensified external stimuli, indicating potential applications in military defense, healthcare monitoring, and smart bionic skin.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Rui Gao, Dan Li, Siqing Zheng, Haixin Gu, Wei Deng
Summary: A trimodal method for accurate sensing of Zn2+ in complex matrices was developed using stimuli-responsive GNRs-DPY, which can visually detect Zn2+ aggregation and lower the SERS detection limit through electromagnetic enhancement. This method not only enables the differentiation of Zn2+ from Cd2+ but also allows for sensitive and selective quantitative determination of Zn2+ in different matrices.
Article
Nanoscience & Nanotechnology
Yating Feng, Jiaxue Dai, Chuyun Wang, Hongyang Zhou, Jianhua Li, Gang Ni, Maofeng Zhang, Youju Huang
Summary: In this study, a sandwich structure based on surface-enhanced Raman scattering (SERS) was constructed, using AgNPs/Au@AgNRs, for the detection of perfluoro- and polyfluoroalkyl substances (PFAS). The results showed that the AgNPs/Au@AgNRs structure enabled highly sensitive detection of PFAS, with the ability to quantitatively detect model molecules and a wide range of PFAS. The sensitivity could reach 0.1 ppm. This research has significant implications for environmental sustainability and human health protection.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Analytical
Ningxin Kong, Hao Yuan, Huangmei Zhou, Yu Zhao, Sanjun Zhang
Summary: The water content in solvents can be accurately detected using fluorescent Ag nanoclusters with the help of a smartphone. The G/B values showed a linear relationship with water content in ethanol, with a detection limit of 4.48%. The method showed good consistency when applied to real samples like white wine and medical alcohol.
ANALYTICAL METHODS
(2021)
Article
Chemistry, Analytical
Afsaneh Orouji, Forough Ghasemi, Mohammad Reza Hormozi-Nezhad
Summary: The oxidation state of an element is crucial for its toxicological impacts on biological ecosystems. Therefore, the development of robust sensing strategies for the detection of species based on their oxidation states or bonding conditions is of great importance. In this study, a multicolorimetric probe utilizing gold nanorods was designed for the identification and quantification of chromium species in water samples.
ANALYTICAL CHEMISTRY
(2023)
Review
Chemistry, Analytical
Mingliang Xue, Wei Mao, Jisen Chen, Fenfen Zheng, Wenhui Chen, Wei Shen, Sheng Tang
Summary: Gold and silver nanomaterials have been widely used in glucose determination due to their specific properties, with advantages of simple operation, low cost, and easy observation in colorimetric methods. Various synthesis methods and strategies for colorimetric determination of glucose using gold or silver nanomaterials are discussed, along with challenges and prospects for their application in glucose detection.
Article
Chemistry, Analytical
Yanping Qu, Ibrahim Yakub, Rubiyah Baini, Min Guo, Yuyue Luo
Summary: In this paper, a colorimetric sensor based on graphene oxide/nano-gold platinum composites (GO/Au-PtNPs) was constructed for simple and rapid on-site simultaneous detection of Ag+ and Hg2+. The colorimetric sensor exhibited high sensitivity, a wide detection range, and good specificity. It achieved a recovery rate of 92-104% for Ag+ and Hg2+ in spiked samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Biophysics
Yi Pan, Xinlin Wei, Xiaodong Guo, Hui Wang, Haiyun Song, Canping Pan, Naifeng Xu
Summary: A dual-model colorimetric/fluorescent immune probe based on Au-Ag NCs and PEI-Au NPs was successfully constructed for rapid and ultrasensitive detection of DICO, with improved sensitivity in ic-ELISA method and a quantitative LOD in LFIA method. The fluorescence signal significantly enhanced the detection sensitivity in ic-ELISA method with a LOD of 0.62 ng/mL, while the fluorescence model detection in LFIA method achieved a quantitative LOD at the level of 1.59 ng/mL.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Zhenjing Zhuang, Chunyan Zhang, Zhengdi Yu, Wenyuan Liu, Yajun Zhong, Jingyun Zhang, Zhihui Xu
Summary: Au/CuO nanocomposites prepared by solution-phase synthesis demonstrated efficient hydroquinone (HQ)-oxidase activity and good specificity. The nanocomposites exhibited a strong color reaction with HQ, allowing for quantitative measurement via colorimetric analysis. The sensor was successfully applied to the determination of HQ in real water samples.
Article
Chemistry, Analytical
Tahereh Rohani Bastami, Mansour Bayat, Roberto Paolesse
Summary: In this study, a novel and facile colorimetric assay based on Au@AgNPs as a chemosensor for the naked-eye detection of morphine was developed. The aggregation of Au@AgNPs upon exposure to morphine resulted in a visible color change from light-yellow to brown. The method showed excellent stability, selectivity, prompt detection, and cost-effectiveness.
Article
Chemistry, Multidisciplinary
Haoran Li, Daqing Chen, Wen Zhou, Donghao Cheng, Danhua Ge, Xiaojun Chen
Summary: We designed a novel strategy for monitoring L-cysteine using bimetallic core-shell nanocubes. The composites displayed strong catalytic effects, making them suitable for constructing a colorimetric sensor for L-cysteine detection.
Article
Chemistry, Physical
Ramesh Ghosh, Minho S. Song, JunBeom Park, Youngbin Tchoe, Puspendu Guha, Wanhee Lee, Yoonseo Lim, Bosung Kim, Sang-Woo Kim, Miyoung Kim, Gyu-Chul Yi
Summary: This paper presents a controlled method for fabricating a highly sensitive piezoresistive sensor using silicon nanorod arrays, demonstrating its potential applications in pressure sensing. The silicon NR arrays exhibit high sensitivity and good stability, suitable for applications such as monitoring human breathing patterns.
Article
Chemistry, Applied
M. Isacfranklin, R. Yuvakkumar, P. Senthil Kumar, V Thirumal, G. Ravi, Dhayalan Velauthapillai
Summary: In this study, a new method was explored for the direct growth of carbon nanorods (CNRs) on an SS plate as a promising electrode in symmetric supercapacitor applications. The CNRs were grown in a hydrogen free environment using chemical vapor deposition, and the substrate position was studied through control of temperature, time, and precursor gas flow rate. Characterization techniques such as Raman spectroscopy, Fourier transform infrared spectra (FTIR), and high-resolution transmission electron microscopy (HR-TEM) were used to explore the formation of CNRs, which showed excellent assembly on the substrate with good electrical contact. The electrochemical activity of CNR-developed electrodes was measured using a biological SP-150 instrument, and the symmetric supercapacitor devices exhibited high energy density and maintained capacity over 10,000 charge discharge cycles.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)