Article
Nanoscience & Nanotechnology
Livy Laysandra, Darwin Kurniawan, Chen-Lin Wang, Wei-Hung Chiang, Yu-Cheng Chiu
Summary: By incorporating NGQDs into a polymer matrix, the nanocomposite material shows improved mechanical strength, Young's modulus, toughness, and sensitivity to pH levels. Additionally, the material has a high self-healing efficiency and stable sensing performance, making it ideal for wearable pH sensors.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biophysics
Longhui Zheng, Haobo Zhang, Miae Won, Eunji Kim, Mingle Li, Jong Seung Kim
Summary: The development of a highly sensitive photoelectrochemical (PEC) biosensor, named GBCN, based on boron and graphene quantum dots co-doped g-C3N4, has been achieved. GBCN exhibited the greatest photocurrent response and PEC activity, compared to other materials. This PEC sensor showed a broad linear range (0.001-800 μM) and a low detection limit (0.96 nM), with a sensitivity up to 10.3771 μA/μM/cm2 for GBCN. This research is of great importance for the creation of a highly sensitive and selective PEC platform for detecting biomolecules.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Analytical
Nobuhle Ndebele, Pinar Sen, Tebello Nyokong
Summary: Two cobalt phthalocyanine molecules were synthesized and used as electro-catalytic probes in the electrochemical oxidation of dopamine, showing improved sensitivity and limit of detection when conjugated with nitrogen-doped graphene quantum dots.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Qiaowei Chen, Chen Yuan, Zhilong He, Jin Wang, Chunyang Zhai, Duan Bin, Mingshan Zhu
Summary: S, N co-doped graphene quantum dot (S, N-GQD) materials were synthesized and used as photosensitive materials in a label-free photoelectrochemical (PEC) sensor. The materials exhibited enhanced photocurrent response towards Bisphenol A (BPA) sensing, improved charge transfer rate, and increased absorption of visible light. The sensor showed linear current response to BPA within two ranges, with a detection limit of 0.04 μM and good stability and interference immunity.
Article
Chemistry, Applied
Saipriya Ramalingam, Abdallah Elsayed, Ashutosh Singh
Summary: This article expresses gratitude to the Natural Center for their support and encouragement.
Article
Chemistry, Analytical
Zhifang Wu, Fangjie Han, Tianqi Wang, Liwei Guan, Zhishan Liang, Dongxue Han, Li Niu
Summary: A novel recognition-molecule-free electrode based on Ti3C2/TiO2 composites was synthesized for selective detection of dopamine (DA). The TiO2 formed by oxidation on the Ti3C2 surface increased the active surface for DA binding and accelerated carrier transfer, resulting in better photoelectric response than pure TiO2. The optimized MT100 electrode showed proportional photocurrent signals with DA concentration from 0.125 to 400 mu M, with a detection limit of 0.045 mu M. Good recovery of DA in human blood serum samples was demonstrated, indicating promising potential for real sample analysis.
Article
Biochemical Research Methods
Kuan-Neng Chi, Jia-Wen Liu, Yan Guan, Qiu-Xia Li, Tong Yang, Rong Hu, Yun-Hui Yang
Summary: In this study, a photoelectrochemical (PEC) sensor was developed using perylene diimide derivatives (PDIs) for ultrasensitive quantification of dopamine (DA). The shape of the PDIs significantly affected the PEC properties of the nanostructures. Amino PDI with 2D wrinkled layered nanostructures displayed superior PEC properties compared to 1D nanorods and fiber-based nanostructures. These findings provide valuable insights for the future development of PEC sensors.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Chenxi Wang, Jia Chen, Li Zhang, Yaqi Yang, Minghui Huang, Chao Chen, Chunyan Li, Yixi Xie, Pengcheng Zhao, Junjie Fei
Summary: In this work, two-dimensional Zn carbon nanosheets (CNs) were obtained by heat treatment of in situ synthesized ZIF-8/NaCl nanocomposites, and then mixed with carboxylated multi-walled carbon nanotubes (MWCNTs) to form Zn CNs-MWCNTs nanocomposites with large specific surface area and excellent catalytic properties. A novel dopamine photoelectrochemical sensor based on Zn CNs-MWCNTs was constructed, and the working mechanism of the sensor was investigated using the Kubelka-Munk model.
Article
Chemistry, Multidisciplinary
Chunmei Li, Sainan Ma, Ming Zhao, Maoxiang Jing, Weiyong Yuan, Changming Li
Summary: This study synthesized wormlike nanostructured α-Fe2O3@Co3O4/graphene quantum dot (GQD) core-hybrid shell nanoarrays via self-assembly, which exhibit superior photoelectrochemical water oxidation performance. The onset potential is 0.63 V and the photocurrent density is 3.63 mA cm(-2) at 1.23 V, surpassing other reported Fe2O3-based heterojunction photoanodes. The excellent performance is attributed to the significant enhancement of charge separation, transfer, hole injection, and synergistic effects between GQDs and Co3O4. This work provides insights into the enhancement mechanism and offers a facile and economical strategy for self-assembling conformal and ultrathin hybrid shells on complex nanostructures, with broad applications in energy, environment, and sensing.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Mohammad Ghader Zahiri, Ehsan Esmaeilnezhad, Hyoung Jin Choi
Summary: This study focused on utilizing graphene-quantum-dots and a superpusher polymer to enhance oil recovery from mature oil fields. By synthesizing nanoparticles and combining them with polymer solutions, the sweep efficiency of the fluids was improved. Experimental results showed reduced interfacial tension and altered wettability in carbonate rocks, as well as improved mobility ratio with the polymer. Two flooding fluids were proposed based on the experiment, increasing the recovery factors for carbonate and sandstone core samples.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Analytical
Nazli Simsek, Gozde Aydogdu Tig
Summary: A nanocomposite consisting of AuNPs, GQD, and poly(L-lysine) was prepared for highly sensitive electrochemical determination of dopamine and serotonin neurotransmitters. The LOD values for dopamine and serotonin were calculated as 0.03 μM and 0.017 μM, respectively. The nanocomposite showed high recovery values when used for determining dopamine and serotonin contents in fetal bovine serum samples and pharmaceutical formulations.
Article
Chemistry, Multidisciplinary
Pradeep Subedi, Suman Parajuli, Mario A. Alpuche-Aviles
Summary: This study demonstrates the detection of colloidal quantum dots of CdSe and CdSe/ZnS during the photooxidation of MeOH under broad spectrum illumination. The photocurrent response corresponds to single entities irreversibly adsorbing to the Pt electrode surface. The stability of nanomaterials is increased by the ZnS layer on the CdSe/ZnS material, facilitating the detection of single entities. The rate of hole transfer from QD aggregates to MeOH outcompetes the dissolution of the CdSe core under certain conditions.
FRONTIERS IN CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Zhenyan Xu, Xianfeng Zhao, Xiao Xu Yan, Huidan Lu, Yongping Liu
Summary: In this study, GQDs/WO3 composite porous photoanodes were fabricated using a pulsed anodization method, showing significant enhancement in photoelectrochemical performance and excellent PEC stability. This research is of great importance for the realization of solar water splitting.
FUNCTIONAL MATERIALS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xiaoyu Luan, Zhiqiang Zheng, Zhongqiang Wang, Yaqi Gao, Shuya Zhao, Yurui Xue, Yuliang Li
Summary: By introducing GDY, the growth and dispersion of CdSe QDs on GDY can be effectively induced, forming new heterostructures that maximize the number of active sites, reduce recombination of photo-induced electron and hole pairs, and facilitate charge transfer behavior.
Article
Chemistry, Physical
Fushuang Niu, Quan Zhou, Rong Liu, Ke Hu
Summary: This study introduces a hybrid quantum dot-molecular photoanode assembly that achieves efficient water oxidation through lateral hole transfer. The results show that the faradaic efficiency of water oxidation significantly increases when HT molecules are present.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Ceramics
Fahimeh Emadi, Ali Nemati, Manuel Hinterstein, Esmaeil Adabifiroozjaei
CERAMICS INTERNATIONAL
(2019)
Article
Materials Science, Ceramics
H. Rastegar, M. Bavand-vandchali, A. Nemati, F. Golestani-Fard
CERAMICS INTERNATIONAL
(2019)
Article
Physics, Nuclear
Ali Nemati, Shahrokh Parvizi
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
(2019)
Article
Engineering, Electrical & Electronic
H. Ahmadi, M. Bagherzadeh, M. Raeisi, F. Payami
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Materials Science, Multidisciplinary
S. Riahi, A. Nemati, A. R. Khodabandeh, S. Baghshahi
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Chemistry, Physical
Zahra Sadeghian, Mohammad R. Hadidi, Delaram Salehzadeh, Ali Nemati
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Review
Materials Science, Ceramics
Fariborz Sharifianjazi, Mostafa Moradi, Nader Parvin, Ali Nemati, Azadeh Jafari Rad, Niloufar Sheysi, Aliasghar Abouchenari, Ali Mohammadi, Saeed Karbasi, Zohre Ahmadi, Amirhossein Esmaeilkhanian, Mohammad Irani, Amirhosein Pakseresht, Saeid Sahmani, Mehdi Shahedi Asl
CERAMICS INTERNATIONAL
(2020)
Article
Engineering, Electrical & Electronic
Zeinab Abasali Karaj Abad, Ali Nemati, Adrine Malek Khachatourian, Mohammad Golmohammad
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Chemistry, Physical
H. Mousa Mirabad, A. Nemati, M. A. Faghihi-Sani, M. Fakouri Hasanabadi, H. Abdoli
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Engineering, Electrical & Electronic
Mojtaba Bagherzadeh, Zahra Hadizadeh, Zakyeh Akrami, Zahra Shams Ghahfarokhi
Summary: In this study, Fe3O4 magnetic nanoparticles modified by ZrO2 were prepared and used to develop a new electrochemical technique for the analysis and speciation of Cr(III) and Cr(VI). The behavior of different forms of chromium ions at the electrode interface in the presence of redox probes was investigated, leading to the proposal of a calibration method and protocol for Cr speciation.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Akbar Rostami-Vartooni, Leila Rostami, Mojtaba Bagherzadeh
Summary: In this study, Ag and Pd nanoparticles were immobilized on natural zeolite using a green and low-cost method involving Chrysanthemum morifolium flower extract. Various characterization techniques were used to analyze the nanocomposites. Results showed successful formation and dispersion of quasi-spherical Ag and Pd NPs, with Pd/Fe3O4/natural zeolite exhibiting the highest dye reduction rate among the catalysts studied.
IRANIAN JOURNAL OF CATALYSIS
(2021)
Article
Multidisciplinary Sciences
Mehdi Gheisari Goudarzi, Mojtaba Bagherzadeh, Fatemeh Taheri, Akbar Rostami-Vartooni
SN APPLIED SCIENCES
(2020)
Article
Materials Science, Ceramics
M. Vaseghi, S. Baghshahi, M. Mashhadi, A. Nemati
JOURNAL OF CERAMIC PROCESSING RESEARCH
(2019)
Article
Biophysics
Reza Khodadadi, Manouchehr Eghbal, Hamideh Ofoghi, Alireza Balaei, Ali Tamayol, Karen Abrinia, Amir Sanati-Nezhad, Mohamadmahdi Samandari
Summary: This paper introduces an integrated portable centrifugal microfluidic system that automates cell and fluid manipulation for complete blood counting (CBC) analysis at the point-of-care (POC). The system utilizes a specially designed microfluidic disc for cell separation, solution metering and mixing, and cell counting, and is equipped with a custom script for automated quantification of cells. The proposed method shows a strong correlation with the gold standard hematology analyzer for various blood parameters. The portable system offers simplicity, affordability, and low power consumption, making it a potential solution for improving healthcare delivery in resource-limited settings and remote areas.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Nabil H. Bhuiyan, Joon S. Shim
Summary: Developing herd immunity is crucial for changing the course of the COVID-19 pandemic. An AI-driven point-of-care testing platform has been proposed for analyzing the body's response to SARS-CoV-2, and it has been successfully used for quantifying viral proteins and antibodies in blood samples. A data-receptive web-based dashboard system has also been developed for real-time analysis of herd immunity progress.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Alexiane Godain, Timothy M. Vogel, Pascal Fongarland, Naoufel Haddour
Summary: This study provides comprehensive insights into the intricate relationship between shear stress and electroactive biofilms in microbial fuel cells, highlighting the pivotal role of shear stress in influencing the growth kinetics, electrical performance, and physical structure of the biofilms. The study also emphasizes the complexities of extracellular electron transfer mechanisms and the need for complementary metaproteomic analyses.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Linjie Wang, Yixin Chen, Yang Ji, Shujun Zheng, Fei Wang, Caolong Li
Summary: A paper-based biosensor incorporating surface-enhanced Raman spectroscopy (SERS) and colorimetric detection has been developed for efficient quantification of intracellular glutathione (GSH). The biosensor exhibits excellent selectivity, stability, and precision, with low detection limits in both SERS and colorimetric modes. It has been successfully utilized for intracellular GSH detection and validated against a commercial GSH assay kit.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Quan Zhou, Jing Wang, Zhen Zhang, Alain Wuethrich, Richard J. Lobb, Matt Trau
Summary: This study presents a biosensor for sensitive detection of EMT-associated biomarkers on extracellular vesicles (EVs) surfaces during targeted therapy. Through longitudinal monitoring of patients, the biosensor shows its ability to identify the EMT-like phenotype switching on circulating EVs during the development of resistance.
BIOSENSORS & BIOELECTRONICS
(2024)
Review
Biophysics
Pratika Rai, Sabrina N. Hoba, Celine Buchmann, Robert J. Subirana-Slotos, Christian Kersten, Tanja Schirmeister, Kristina Endres, Bernd Bufe, Alexey Tarasov
Summary: Proteases have been proposed as potential biomarkers for various pathological conditions. The development of protease biosensors offers a more efficient way to investigate dysregulated proteases. This review article presents different optical and electrochemical detection methods for designing biosensors for all major protease families.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Chengxin Liu, Xu Shen, Li Yan, Runlian Qu, Yue Wang, Yaqin He, Zixuan Zhan, Piaopiao Chen, Feng Lin
Summary: In this study, a homogeneous rapid electrochemical aptasensor was developed to quantitatively detect CTCs in lung cancer patients. The aptasensor utilized a DNA nanosphere structure and a complementary aptamer to specifically detect mucin 1 as a marker for CTCs. The assay exhibited high specificity and sensitivity, and the results were consistent with other detection methods.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Danni Xue, Xing Dai, Jialong Zhao, Jiayao Zhang, Huan Liu, Kui Liu, Tao Xu, Chenjie Gu, Xingfei Zhou, Tao Jiang
Summary: In this study, a dual-enhancement SERS substrate based on Ti3C2TX and Ag nanocubes was fabricated for precise quantification of ritonavir and ibrutinib in serum. The formation of numerous electromagnetic hotspots between Ag nanocubes facilitated effective photo-induced charge transfer. The composite substrate showed excellent sensitivity, achieving low detection limits and high recoveries, making it promising for monitoring and identification of clinical blood drug concentration.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Tenghua Zhang, Zihui Xie, Xiaohe Zheng, Yuxin Liang, Yao Lu, Hankang Zhong, Feiyang Qian, Yuqing Zhu, Ruiting Sun, Yan Sheng, Jiaming Hu
Summary: This study reports a technology based on cationic lipid-polymer hybrid nanoparticles for efficient extracellular vesicle (EV) enrichment and in-situ detection of internal microRNAs. The technology demonstrates high EV enrichment efficiency and sensitive internal RNA detection, making it potentially useful for early pancreatic cancer diagnosis.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Wenjie Dai, Gaoxu Chen, Xiaoyan Wang, Shujun Zhen, Chengzhi Huang, Lei Zhan, Yuanfang Li
Summary: In this study, a novel metal organic gel (MOG) with dual electrochemiluminescence (ECL) properties was prepared by simple mixing. The MOG exhibited strong and stable anodic and cathodic ECL signals. By utilizing this MOG, an ECL resonance energy transfer (ECL-RET) biosensor was constructed for ultrasensitive detection of a specific gene. The study developed a straightforward technique for obtaining a single luminescent material with dual signals and expanded the analytical application of MOGs in the realm of ECL.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Lais Canniatti Brazaca, Amanda Hikari Imamura, Rodrigo Vieira Blasques, Jessica Rocha Camargo, Bruno Campos Janegitz, Emanuel Carrilho
Summary: The use of microfluidic paper-based analytical devices (muPADs) for medical diagnosis is a growing trend due to their low cost, easy use, simple manufacturing, and potential for application in low-resource settings. This review focuses on the advances in muPADs for medical diagnostics, discussing their use in detecting various biomarkers in common human biofluids. The challenges of biomarker detection in each sample are examined, along with innovative techniques to overcome these limitations. The commercialization difficulties of muPADs are also considered, along with future trends such as wearable devices and integrated platforms.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Minghong Jian, Xudong Sun, Hua Zhang, Xiaotong Li, Shasha Li, Zhenxin Wang
Summary: Matrix metalloproteinases (MMPs) are attractive biomarkers for cancer diagnosis and treatment, but their low abundance in biological samples, especially in the early stages of tumors, makes it challenging to precisely analyze MMP activities. In this study, a peptide microarray-based metal-enhanced fluorescence assay (PMMEFA) is proposed as a sensitive and specific method to simultaneously detect MMP-1, -2, -3, -7, -9, and -13 activities. The PMMEFA showed excellent sensitivity and was capable of detecting MMP activities in various matrices.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Kyung Ho Kim, Eunsu Ryu, Zinah Hilal Khaleel, Sung Eun Seo, Lina Kim, Yong Ho Kim, Hyun Gyu Park, Oh Seok Kwon
Summary: We have developed a novel strategy for discriminative detection of SARS-CoV-2 variants using the plasmonic photothermal effect of gold nanofilms and digital polymerase chain reaction (dPCR) technology. With this method, we were able to detect the delta and omicron variants with high sensitivity within 25 minutes from COVID-19 patients' clinical samples, making it a rapid and accurate point-of-care testing tool.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Zepeng Kang, Yuanming Wang, Haiyan Song, Xueli Wang, Job Zhang, Zhiguang Zhu
Summary: By designing a wearable and flexible lactic-acid/O2 EBFC with an air-breathing biocathode, the limitations of biocathode are effectively solved. The optimal performance conditions are determined through experiments, and the EBFC is successfully applied to power a low-power device.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Huayun Chen, Zhiheng You, Yuhui Hong, Xiao Wang, Mingming Zhao, Yushi Luan, Yibin Ying, Yixian Wang
Summary: This study developed a colorimetric sensor array using gas-responsive two-dimensional metal-organic framework (MOF) composites for highly sensitive detection of volatile organic compounds (VOCs). The dye/Zn-2(bim)(4) composites-based sensor arrays showed enhanced sensitivity and anti-interference properties. The findings demonstrate the potential use of dye/Zn-2(bim)(4) sensor arrays for early perception of plant diseases.
BIOSENSORS & BIOELECTRONICS
(2024)