Article
Chemistry, Multidisciplinary
Xiaojing Wang, Peng Liu, Boonkar Yap, Ruidong Xia, Wai-Yeung Wong, Zhicai He
Summary: Liquid-exfoliated 2D transition metal disulfides can be potential substitutes for PEDOT:PSS as hole transport layers in Organic Solar Cells. By optimizing the preparation conditions of WS2 layers, the device performance and power conversion efficiency can be improved.
Article
Optics
Guanhao Liu, Zhiyi Li, Xiaoxiao Hu, Yuanyuan Qin, Chun-Sing Lee, Dongqi Chen, Lingxue Wang, Jianjun Liu, Pengfei Wang, Yong-Jin Pu, Ying Wang
Summary: This study demonstrates highly efficient and stable OLEDs with thicknesses of over 1 mu m and low operating voltages. MoO3/SimCP2 is used as a hole-injection layer and a thick layer of TAPC is used as a hole-transporting layer. A thin layer of HAT-CN is incorporated to suppress electron leakage. The research paves the way for large-area OLED-based displays and lighting with high production yields.
Article
Biochemical Research Methods
Weiyang Yang, Yan Gong, Cheng-You Yao, Maheshwar Shrestha, Yaoyao Jia, Zhen Qiu, Qi Hua Fan, Arthur Weber, Wen Li
Summary: Integrative neural interfaces combining neurophysiology, optogenetics, and neural imaging offer opportunities for studying neural circuits in the brain. The development of ultra-flexible, highly conductive and fully transparent microscale electrocorticogram (mu ECoG) electrode arrays with PEDOT:PSS-ITO-Ag-ITO assembly shows enhanced mechanical flexibility, robustness, and resilience to photon-induced artifacts. In vivo experiments demonstrate successful recording of light-evoked ECoG oscillations from the primary visual cortex (V1) of an anesthetized rat.
Article
Nanoscience & Nanotechnology
Ruzan Sokhoyan, Prachi Thureja, Jared Sisler, Meir Grajower, Komron Shayegan, Eyal Feigenbaum, Selim Elhadj, Harry A. A. Atwater
Summary: Active metasurfaces at optical frequencies enable dynamic wavefront control of light, and investigating their thermal performance limits is crucial for high-power applications. We experimentally demonstrate that gate-tunable conducting oxide metasurfaces can withstand high power densities without significant changes in their optical response, making them robust for applications such as optical communications and LiDAR.
Editorial Material
Optics
Nathaniel Kinsey
Summary: The article explores the impact of momentum on linear optical processes in near-zero-index materials.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Ajay Kumar Yagati, Tailin Wu, Sachin Ganpat Chavan, Mi-Kyung Lee, Min-Ho Lee, Junhong Min
Summary: This study demonstrates the successful detection of the Omicron variant of SARS-CoV-2 using borophene material and a four-way junction aptamer structure. The developed biosensor exhibits high sensitivity and good quantitative performance, making it useful for real-world clinical samples.
ACS APPLIED NANO MATERIALS
(2023)
Article
Optics
Hou Shaodong, Ma Zhijian, Yang Junbo, Zhang Min, Yan Peiguang, Ruan Shuangchen
Summary: A fiber component serving as a WDM, OC, and mode-locker was proposed and demonstrated in a laboratory setting, achieving specific parameters for an Er-doped mode-locked fiber laser. This is the first demonstration of a mode-locked fiber laser based on a WDM/OC/SA integrated device.
Article
Chemistry, Analytical
Jihun Woo, Jiwoong Kim, Joohoon Kim
Summary: In this study, we report enhanced electrochemiluminescence (ECL) using a closed bipolar electrode (BPE) system modified with catalytic Pt nanoparticles. The system demonstrated sensitive and stable ECL emission under a low driving voltage and exhibited improved sensitivity and stability for bipolar ECL imaging analysis.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Takahiro Gunji, Kotoe Nakamura, Ryohei Hayami, Akihisa Aimi, Kenjiro Fujimoto, Kazuki Yamamoto
Summary: A novel recycling system for indium in indium tin oxide (ITO) was established, which successfully synthesized ITO films containing 10 wt% tin oxide with high transparency and resistivity. The system involved the dissolution of indium oxide, chlorination, chelation, and steaming treatment, leading to the synthesis of In(etac)(3) and subsequent film formation.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Hao Li, Ziheng Zhou, Wangyu Sun, Michael Lobet, Nader Engheta, Inigo Liberal, Yue Li
Summary: This paper reports experimental observation of electromagnetic power flow in a near-zero-index medium. The observed distribution of power flow exhibits characteristics similar to an ideal fluid. The results provide important insights into the development of ideal electromagnetic fluids and offer a tool to explore the subwavelength behavior of near-zero-index media.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Yongchang Bai, Shuang Li
Summary: This study designs a label-free, portable biosensor device to directly detect the oxidative stress biomarker 8-OHdG using plasma-coupled electrochemistry on a transparent and conductive indium tin oxide (ITO) electrode. The biosensor is made from flexible printed ITO electrode assembled with gold nanotriangles (AuNTAs) and platinum nanoparticles (PtNPs). The nanomaterial-modified portable biosensor performs excellently in the electrochemical detection of 8-OHdG from 10μg/mL to 100μg/mL. This work demonstrates a potential biosensor for point-of-care testing (POCT) of 8-OHdG in various biological fluid samples.
Article
Chemistry, Physical
Yao Xiong, Fu Chen, Yongzhi Cheng, Hui Luo
Summary: A transparent multilayer metamaterial absorber (MMA) with broadband microwave absorption characteristics based on Indium Tin Oxide (ITO) and polymethyl methacrylate (PMMA) has been designed and fabricated. By adjusting the resistance of ITO and the structural parameters, the microwave absorption properties can be controlled and achieve more than 90% absorption in the frequency range of 2.64-18 GHz. The microwave attenuation mechanism, angle-sensitive properties, and visible light transmittance were investigated, and the experimental and simulated results are consistent, indicating the potential application of this absorber in transparent microwave absorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Juan Navarro-Arenas, Jorge Parra, Pablo Sanchis
Summary: This article investigates the behavior of ultrafast all-optical phase switching in TCO-silicon waveguides through numerical simulation. The study reveals the best compromise between energy consumption, insertion losses, and phase change per unit length.
Review
Chemistry, Physical
Gabriel Bernardo, Tania Lopes, David G. Lidzey, Adelio Mendes
Summary: Organic photovoltaic (OPV) cells have significantly increased their power conversion efficiency under AM1.5G conditions, and there is a growing interest in their applications for dim light indoor settings. However, transferring OPV from lab to market still faces challenges, such as scaling up single cells, finding alternatives to vacuum processing and ITO substrates, and improving the lifetime of large area OPV devices.
ADVANCED ENERGY MATERIALS
(2021)
Article
Engineering, Chemical
Yangyang Fan, Yan Liu, Liping Niu, Weiguang Zhang, Ting-an Zhang
Summary: This study proposed a closed-loop hydrometallurgical process for indium recovery from waste ITO targets, achieving high indium recovery and recirculation of leaching reagent. By implementing experiments and models, successful indium recovery, selective precipitation of tin, and preparation of indium oxide product were achieved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Cuiying Lin, Qingqing Huang, Mengjian Tian, Fang Luo, Jian Wang, Bin Qiu, Shuofei Yang, Zhenyu Lin
Summary: An electrochemiluminescence (ECL) biosensor with dual signal enhancement was developed to detect DNA adenine methylation methyltransferase (Dam MTase). The biosensor utilized a restriction endonuclease to cleave DNA and activate CRISPR/Cas12a trans-cleavage activity, resulting in enhanced ECL signal. The biosensor exhibited a good linear relationship with Dam MTase concentration and was successfully applied for detection in serum samples.
Article
Chemistry, Multidisciplinary
Jingjing Liu, Yuanjin Zhan, Bin Qiu, Zhenyu Lin, Longhua Guo
Summary: The development of an instrument-free, on-site, real-time, sensitive, and visualized fluoride-ion (F-) content rapid detection strategy is crucial to ensuring the health of the population. A smartphone sensing platform based on a ratiometric fluorescent probe was developed for the detection of F-. The platform features low cost, portability, easy operation, and good stability, selectivity, and repeatability, providing a powerful tool for visual quantitative detection in various fields.
Article
Chemistry, Analytical
Huiping Fu, Ning Ding, Dan Ma, Qing Xu, Bingyong Lin, Bin Qiu, Zhenyu Lin, Longhua Guo
Summary: This study reports a simple, low-cost, green, and mild method for preparing three-dimensional nanocomposite materials of gold nanorods (Au NRs)@TiO2. The Au NRs were coated with TiO2 through in situ reduction at room temperature without complicated operations. The synthesized Au NRs@TiO2 nanocomposites were used as surface-enhanced Raman spectroscopy (SERS) active substrates for sensitive and reusable detection of environmental pollutants. The results showed that the pollutants on Au NRs@TiO2 nanocomposites exhibited higher SERS activity and reproducibility compared to those on Au NR substrates without TiO2. In addition, the SERS substrate could be easily recycled by UV-assisted self-cleaning to remove residual analyte molecules. Malachite green (MG) and crystal violet (CV) were used as examples to demonstrate the feasibility of the proposed sensor for sensitive detection of environmental pollutants. The results showed that the limit of detections (LODs) for MG and CV were 0.75 μg/L and 0.50 μg/L, respectively, with recoveries ranging from 86.67% to 91.20% and 83.70% to 89.00%. Furthermore, the SERS substrate maintained its high SERS enhancement effect even after three cycles of use, indicating the potential of the method for detecting MG and CV in complex samples. The proposed sensor, with its high sensitivity, reusability, portability, and rapid detection capability, could have potential applications in on-site detection of environmental pollutants in complex sample matrices.
Article
Chemistry, Analytical
Weiquan Wang, Yunpeng Xu, Jie Hou, Zhixin Li, Fang Luo, De He, Zhenyu Lin
Summary: A HAase-responsive hydrogel system was designed to semi-quantitatively determine HAase by utilizing the relationship between HAase and spilled H2O2. Additionally, Au NRs were etched by H2O2, and the color change of the solution was used as a semi-quantitative method for HAase determination. The proposed method has been successfully applied to monitor HAase in serum of pancreatic cancer patients.
Review
Chemistry, Multidisciplinary
Liang Wang, Ying Cheng, Saianand Gopalan, Fang Luo, Khairunnisa Amreen, Ritesh Kumar Singh, Sanket Goel, Zhenyu Lin, Ravi Naidu
Summary: Currently, various advanced methods are being used in gas sensing and monitoring, including detecting hazardous gas leaks and monitoring ambient air. Commonly used technologies include photoionization detectors, electrochemical sensors, and optical infrared sensors. However, these sensors, which are nonselective or semiselective, can be affected by unwanted analytes. To address this issue, gas separation and discrimination technologies such as gas permeable membranes, metal-organic frameworks, microfluidics, and IR bandpass filters have been developed. Although these technologies have not been extensively utilized in the field for vapor intrusion monitoring, they show promise for further development and application. This review provides an overview and summary of the existing gas separation and discrimination technologies for popular gas sensors used in environmental applications.
Article
Chemistry, Analytical
Yunpeng Xu, Jiahui Chen, Xiaolu Sui, Yanzi Zhang, Aisha Zhang, Zhenyu Lin, Xinguang Liu, Jihong Chen
Summary: The study developed an ultra-sensitive biosensor for microRNA-21 (miRNA-21) by combining the high selectivity and trans-cleavage activity of CRISPR/Cas13a, the high amplification efficiency of HCR, and the high sensitivity of ECL detection. The biosensor recognized target RNA using CRISPR/Cas13a and performed trans-cleavage activity. A signal amplification was achieved by generating long dsDNAs through HCR, and ECL intensity was measured using Ru(phen)32+ as an indicator. The system showed good linear correlation and a limit of detection (LOD) of 0.53 fM for miRNA-21, and was successfully applied to detect miRNA-21 in the urine of acute kidney injury (AKI) patients.
Article
Chemistry, Analytical
Qin Luo, Mengjian Tian, Fang Luo, Min Zhao, Cuiying Lin, Bin Qiu, Jian Wang, Zhenyu Lin
Summary: In this study, a novel multicolor sensor for trypsin detection has been developed based on the regulation of peroxidase activity of BSA-Au NCs. By hydrolyzing BSA ligands on the surface of BSA-Au NCs, trypsin exposes more catalytic active sites of BSA-Au NCs, enhancing their peroxidase activity, resulting in the generation of more TMB+. Under acidic conditions, TMB+ effectively etches Au NBPs, changing their aspect ratio and causing a blue shift in the UV-vis spectra.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Weixin Li, Xinyang Wang, Jiaji Huang, Min Zhao, Jiao Yang, Fang Luo, Bin Qiu, Jian Wang, Zhenyu Lin
Summary: In this work, three-dimensional ZnO nanostructures were used as the support for gold nanoparticles and graphite carbon nitride to form a Z-scheme heterostructure photoelectrode. The photoelectrode exhibited fast carrier transport and abundant reaction sites, and the gold nanoparticles acted as mediators to enhance electron transfer. The developed photoelectrochemical biosensor based on the Z-scheme heterostructure showed good sensitivity and selectivity for the detection of reduced glutathione.
SENSORS & DIAGNOSTICS
(2023)
Article
Chemistry, Analytical
Cheng Chen, Jing Li, Fang Luo, Zhenyu Lin, Jian Wang, Tao Zhang, Aiwen Huang, Bin Qiu
Summary: In this study, a Eu MOF was used to encapsulate FeNCDs, resulting in increased dispersibility and enzymatic catalytic efficiency. The FeNCDs@Eu MOF-based sensor exhibited a nearly 6-fold increase in response to tetracycline, with a low detection limit of 11.63 nM.
Article
Chemistry, Analytical
Jing Li, Cheng Chen, Fang Luo, Cuiying Lin, Zhenyu Lin, Jian Wang, Bin Qiu
Summary: A dual-signal mode ratiometric photoelectrochemical (PEC) sensor based on a Au/GaN photoanode is proposed for rapid and sensitive detection of miRNA-210, crucial for improving the reliability of clinical diagnosis of breast cancer. The sensor utilizes a specially designed DNA probe and a G-rich DNA sequence to enable label-free and sensitive detection of miRNA-210. The potential of this PEC sensor for miRNA-210 detection and other disease markers is demonstrated.
ANALYTICAL CHEMISTRY
(2023)
Article
Polymer Science
Da Huang, Qiang Tang, Minglang Zou, Yongming Wang, Fang Luo, Jinyi Mu, Yuanzi Wu, Zuquan Weng, Zhenyu Lin
Summary: Inflammation is an immune response that can lead to diseases when uncontrolled. Natural products like curcumin have potential as alternative anti-inflammatory drugs, but their bioavailability is low. This study introduces PACE micelles as a promising platform for targeted and responsive anti-inflammatory therapy, demonstrating remarkable stability and significant anti-inflammatory activity.
Article
Chemistry, Multidisciplinary
Zhixin Li, Fangcai Wu, Yulan Zeng, Yiwei Xu, Hongning Liu, Xinjia Wang, Fang Luo, Zhenyu Lin
Summary: This study developed electrochemiluminescence nanoprobes with a core-shell-shell structure and applied them for hyaluronidase detection. The nanoprobes efficiently precipitate through target-regulation wettability for collection and enrich near the hydrophobic electrode surface through hydrophobic interaction, enhancing the biosensor's performance.
CHEMICAL COMMUNICATIONS
(2023)
Article
Biophysics
Lingjun Cheng, Yinghao He, Yuanyuan Yang, Canping Su, Hongzhang He, Mingming You, Jiaming Chen, Zhenyu Lin, Guolin Hong
Summary: The study presents a novel sandwich-type electrochemiluminescence biosensor for highly specific detection of HPV16. The biosensor combines the high specificity of the base-stacking effect, the high reproducibility of BSA modified electrodes, and the high loading performance of DNA nanoclews. The biosensor shows a linear relationship between the signal and target concentration with a low detection limit, and effectively avoids false positive signals.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Analytical
Peiqing Luo, Xiaocui Huang, Fang Luo, Zhonghui Chen, Yu Chen, Cuiying Lin, Jian Wang, Bin Qiu, Zhenyu Lin
Summary: In this study, a sensitive ECL biosensor for hepatitis B virus DNA was developed by combining HCR amplification, CRISPR/Cas12a system, and regulation of negative charge on reporting probes. The sensor exhibited low background, high reproducibility, and high sensitivity, and showed high accuracy in detecting clinical samples.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Weixin Li, Xinyang Wang, Lifen Chen, Fang Luo, Longhua Guo, Cuiying Lin, Jian Wang, Bin Qiu, Zhenyu Lin
Summary: This study proposes a homogeneous photoelectrochemical sensor based on three-dimensional ZnO/Au/two-dimensional MoS2 for ultrasensitive detection of tetracycline (TET). MoS2 is uniformly embedded on the 3D ZnO/Au surface using ordered self-assembly, replacing the conventional chemical modification method. Under optimal conditions, this method has successfully detected TET in milk, honey, pig kidney, and pork samples with reliable results. We believe that this study presents a method for the preparation of sensing carriers and target detection with great potential for application.
