4.7 Article

Novel and facile synthesis of heparin sulfur quantum dots via oxygen acceleration for ratiometric sensing of uric acid in human serum

Journal

SENSORS AND ACTUATORS B-CHEMICAL
Volume 353, Issue -, Pages -

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2021.131146

Keywords

Sulfur quantum dots; Heparin; Ratiometric fluorescence; Inner filter effect; Uric acid

Funding

  1. National Natural Science Foundation of China [81973283, 61775099, 21705080, 61905280]
  2. Natural Science Foundation of Jiangsu Province [BK20171487, BK20171043]

Ask authors/readers for more resources

A novel kind of sulfur quantum dots (Hep-SQDs) is synthesized using heparin as passivator and stabilizer for the first time. The Hep-SQDs show excitation-independent emission and have a high quantum yield. They are successfully applied for the detection of uric acid.
In this work, a novel kind of sulfur quantum dots (SQDs) is synthesized using heparin as passivator and stabilizer for the first time by simple treatment of sublimed sulfur and NaOH under a pure oxygen atmosphere. The obtained heparin SQDs (Hep-SQDs) show excitation-independent emission and have a high quantum yield (11.4%). Herein, we set up a ratiometric fluorescence probe based on the inner filter effect between Hep-SQDs and 2, 3diaminophenazine, the oxidative product of o-phenylenediamine to detect uric acid (UA). The proposed probe is demonstrated to be highly selective and sensitive for UA assay with detection limit of 0.56 mu M. Moreover, the established fluorescence probe is also successfully applied to the determination of UA in human serum. We hope this work can provide new opportunities for developing good performance fluorescent biosensors based on SQDs.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Chemistry, Organic

On Topological Properties of Planar Octahedron Networks

Jia-Bao Liu, Haidar Ali, Muhammad Kashif Shafiq, Ghulam Dustigeer, Parvez Ali

Summary: The research focuses on the applications of topological indices in analyzing the bio-compatibility of chemical compounds in the context of QSAR and QSPR correlations. By combining Chemistry and Graph theory, Chemical graph theory deals with topology and plays a significant role in the development of topological indices. The article specifically explores the use of degree based topological indices in Octahedron networks.

POLYCYCLIC AROMATIC COMPOUNDS (2023)

Article Substance Abuse

Applying topic modelling and qualitative content analysis to identify and characterise ENDS product promotion and sales on Instagram

Neal Shah, Matthew Nali, Cortni Bardier, Jiawei Li, James Maroulis, Raphael Cuomo, Tim K. Mackey

Summary: This study used unsupervised machine learning to analyze the sales of electronic nicotine delivery systems (ENDS) on Instagram. The results showed that there is a significant amount of unregulated ENDS sales on Instagram, including flavored products, and many websites lack age verification. These findings may violate Instagram's policies and US laws, highlighting the need for stronger regulation to prevent youth access to and use of ENDS.

TOBACCO CONTROL (2023)

Article Computer Science, Artificial Intelligence

Aerial Images Meet Crowdsourced Trajectories: A New Approach to Robust Road Extraction

Lingbo Liu, Zewei Yang, Guanbin Li, Kuo Wang, Tianshui Chen, Liang Lin

Summary: This paper discusses an important task in land remote-sensing analysis, which is the automatic extraction of traffic roads from remote-sensing data. To address this problem, the authors introduce a novel neural network framework that utilizes the complementary information from different data sources to enhance the accuracy and robustness of road extraction.

IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS (2023)

Article Biochemical Research Methods

A strategy to explore the quality markers of Ziziphi Spinosae semen by combining metabolic in vivo study with network pharmacology

Yan Yan, Jiaxing Liu, Min Zhang, Yinjie Zhang, Biyun Shi, Xuemei Qin, Chenhui Du

Summary: In this study, quality markers for Ziziphi Spinosae semen (ZSS) were proposed using a combination of metabolic in vivo study and network pharmacology. An UHPLC-Q-Orbitrap-MS method was used to identify and assign components in ZSS, and metabolic networks of flavonoids, saponins, and alkaloids were established. Twelve key bioactive components against insomnia were selected as quality markers for ZSS.

BIOMEDICAL CHROMATOGRAPHY (2023)

Article Cell Biology

HELQ suppresses migration and proliferation of non-small cell lung cancer cells by repairing DNA damage and inducing necrosis

Nan Shan Zhong, Wei Lai Tong, Yu Zhang, Shi Ning Xiao, Jia Ming Liu, An An Li, Ge Liang Yao, Qing Lin, Zhi Li Liu

Summary: HELQ plays a tumor-suppressive role in non-small-cell lung cancer and has the potential to be a predictive biomarker for prognosis and treatment of lung cancer.

CELL BIOLOGY INTERNATIONAL (2023)

Article Materials Science, Paper & Wood

Fabrication of durable coatings for cotton fabrics with flame retardant, antibacterial, Fluorine-free Superhydrophobic and self-cleaning properties

Jianjun Gu, Xiaofei Yan, Dongming Qi, Ruyi Xie, Xiaoming Yang, Yaobang Li, Jiawei Li

Summary: In this study, a durable multifunctional coating was successfully fabricated on cotton fabric, providing it with flame retardant, antibacterial, superhydrophobic and self-cleaning properties. The coated fabric exhibited excellent durability even after multiple washing cycles.

CELLULOSE (2023)

Article Gastroenterology & Hepatology

Application of endoscopic purse-string sutures in high-risk peptic ulcer hemorrhage: preliminary experience of 38 cases

Jingxian Hu, Miao Jiang, Hongyan Liu, Hao Zhou, Yajie Wang

Summary: The study finds that endoscopic purse-string sutures appear to be safe and effective in the treatment of high-risk peptic ulcer hemorrhage patients.

SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY (2023)

Review Materials Science, Textiles

Simulation of fiber arrangement in slub strands and twisting on the slub yarn with the finite element method

Shifeng Wu, Jiawei Li, Chongwen Yu

Summary: This paper proposes a simulation method for the fiber arrangement in slub yarn and uses the finite element method to simulate the twist distribution of slub yarn, which is consistent with actual spinning results. The research is significant for further exploration of the properties of slub yarn.

TEXTILE RESEARCH JOURNAL (2023)

Review Chemistry, Multidisciplinary

Progress in the Foaming of Polymer-based Electromagnetic Interference Shielding Composites by Supercritical CO2

Jianming Yang, Xin Yan, Xinru Xu, Yujian Chen, Wei Han, Xianzhi Chai, Xiang Liu, Jiaxing Liu, Chen Liu, Hexin Zhang, Xiao Li, Zhen Zhang, Tie Wang

Summary: Polymeric electromagnetic interference (EMI) shielding materials based on CO2 foaming technology have gained widespread attention due to their efficient use of CO2, high strength, corrosion resistance, and low cost. New design concepts and preparation techniques have led to the development of high-performance EMI shielding materials. This review summarizes the progress made in fabricating EMI shielding composite foams using supercritical carbon dioxide (scCO(2)) foaming and explores the relationship between component/distribution and EMI shielding properties. Additionally, it discusses the application prospects and development challenges of new EMI shielding composite foams.

CHEMISTRY-AN ASIAN JOURNAL (2023)

Article Computer Science, Interdisciplinary Applications

Sequential fully implicit newton method for flow and transport with natural black-oil formulation

Jiawei Li, Pavel Tomin, Hamdi Tchelepi

Summary: There is an increasing interest in developing robust and efficient sequential methods for reservoir simulation. The sequential fully implicit Newton (SFIN) method addresses the slow sequential coupling convergence issue when flow and transport problems are strongly coupled. However, the original SFIN algorithm requires fixed primary variables during the simulation. In this work, strategies are proposed to handle inconsistent primary variables and extend the SFIN method to the natural black-oil formulation.

COMPUTATIONAL GEOSCIENCES (2023)

Article Dentistry, Oral Surgery & Medicine

Impaired autophagy flux by lncRNA NEAT1 is critical for inflammation factors production in human periodontal ligament stem cells with nicotine treatment

Taotao Zhang, Kuan Yang, Yujiang Chen, Yuran Jiang, Zhifei Zhou, Jiajia Liu, Yang Du, Lulu Wang, Xinxin Han, Xingan Wu, Xiaojing Wang

Summary: This study found that nicotine treatment impairs autophagy function in periodontal ligament stem cells, leading to the production of inflammatory factors. Activation of α7nAChR by nicotine upregulates NEAT1, which in turn decreases autophagy flux by downregulating STX17.

JOURNAL OF PERIODONTAL RESEARCH (2023)

Review Chemistry, Multidisciplinary

Flexible Electronics Based on Organic Semiconductors: from Patterned Assembly to Integrated Applications

Haoran Liu, Dong Liu, Junchuan Yang, Hanfei Gao, Yuchen Wu

Summary: Organic flexible electronic devices with outstanding properties, such as solution processability, lightweight, and flexibility, have the potential to revolutionize lifestyles. The precise patterning and ordered assembly of organic semiconductors for integration in flexible electronics have attracted attention and rapidly developed. This review focuses on recent advances in the design, patterned assembly, and multifunctional applications of flexible organic field-effect transistors (FOFETs). It introduces typical organic semiconductor materials and material design methods, discusses patterned assembly strategies on flexible substrates, and highlights advanced applications of flexible electronic devices based on organic semiconductor patterns. Future challenges and possible directions for the development of the next generation of flexible electronics are also proposed.

SMALL (2023)

Article Spectroscopy

Theoretical perspective for substitution effect on luminescent properties of through space charge transfer-based thermally activated delayed fluorescence molecules

Haipei Zou, Huanling Liu, Qingfang Mu, Kai Zhang, Yuzhi Song, Lili Lin, Yuanyuan Xu, Chuan-Kui Wang, Jianzhong Fan

Summary: This study investigates the relationship between molecular structures and luminescent properties, and proposes theoretically efficient TSCT-based TADF molecules. These molecules have a large number of substitutions and adopt twist structures to achieve small energy gaps between the lowest excited states.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2023)

Article Endocrinology & Metabolism

Identification of Risk Factors and Development of a Predictive Model for Postoperative Hypoglycemia among Diabetic Patients during the Perioperative Period

Zixuan Liu, Jing Dai, Xiaodie He, Jiaxi Li, Haixia Zhang, Cheng Ji

Summary: This study aimed to investigate the incidence and influencing factors of postoperative hypoglycemia in diabetic patients during the perioperative period and construct a risk prediction model. Patients with type 2 diabetes admitted to Nanjing Drum Tower Hospital from December 2019 to January 2022 were included. A total of 440 patients were included, and the incidence of postoperative hypoglycemia was 24.78%. Preoperative C-peptide and operation duration were identified as risk factors, while BMI and preoperative fasting blood glucose were protective factors.

INTERNATIONAL JOURNAL OF ENDOCRINOLOGY (2023)

Article Computer Science, Artificial Intelligence

Integrity verification for scientific papers: The first exploration of the text

Xiang Shi, Yinpeng Liu, Jiawei Liu, Qikai Cheng, Wei Lu

Summary: Scientific papers are crucial for academic communication, but many of them lack in-depth research and present core content ambiguously, hindering the progression of science and technology. To address this challenge, the INTEGrity vERification (INTEGER) task is introduced to help researchers assess the integrity of their papers and verify the clarity of each knowledge unit. A multi-task learning model utilizing Tucker decomposition and span-level attention mechanism is proposed to accurately identify terms and their integrity. Experimental results show the effectiveness of the model.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Chemistry, Analytical

MEMS sensor based on MOF-derived WO3-C/In2O3 heterostructures for hydrogen detection

Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu

Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Signal amplification strategy by chitosan-catechol hydrogel modified paper electrode for electrochemical detection of trace arsenite

Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi

Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

A buffering fluorogenic probe for real-time lysosomal pH monitoring

Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan

Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Rational design of α-glucosidase activated near-infrared fluorescent probe and its applications in diagnosis and treatment of diabetes

Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng

Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Electrochemical immunosensor for the quantification of galectin-3 in saliva

Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry

Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Optical hydrogen peroxide sensor for measurements in flow

Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr

Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Engineered vertically-aligned carbon nanotube microarray for self-concentrated SERS detection

Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim

Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Flexible enzyme-like platform based on a 1-D CeVO4/2-D rGO-MCC heterostructure as sensor for the detection of intracellular superoxide anions

Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan

Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Covalent organic framework enhanced aggregation-induced emission of berberine and the application for detection

Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian

Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Visualized time-temperature monitoring by triplet-sensitized ratiometric fluorescent nanosensors

Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song

Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

A fluorescent prodrug to fight drug-resistant lung cancer cells via autophagy-driven ferroptosis

Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian

Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

ZnO quantum dots sensitized ZnSnO3 for highly formaldehyde sensing at a low temperature

Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang

Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Development of highly sensitive plasmonic biosensors encoded with gold nanoparticles on M13 bacteriophage networks

Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo

Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Single-atom Cu-attached MOFs as peroxide-like enzymes to construct dual-mode immunosensors for detection of breast cancer typing in serum

Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo

Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.

SENSORS AND ACTUATORS B-CHEMICAL (2024)

Article Chemistry, Analytical

Individually-addressable composite microneedle electrode array by mold-and-place method for glucose detection

Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu

Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.

SENSORS AND ACTUATORS B-CHEMICAL (2024)