Article
Chemistry, Analytical
Bayazid Hassan Pour, Nahid Haghnazari, Fatemeh Keshavarzi, Elahe Ahmadi, Bahareh Rahimian Zarif
Summary: A new sensitive electrochemical sensor based on CuMOFs-MWCNTs/GCE has been constructed, showing excellent detection and electrocatalytic response towards IMB. The sensor can quantitatively measure IMB under optimized conditions, demonstrating good comparability and stability in the detection of IMB in human serum, urine, and pharmaceutical dosage.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Afifa Noor, Hamad Khalid, Muhammad Aslam, Akhtar Hayat, Ather Farooq Khan, Muhammad Nasir, Aqif Anwar Chaudhry, Mian Hasnain Nawaz
Summary: The fabrication of 2D materials and polymer-based nanocomposites on flexible conductive interfaces has opened up new possibilities for developing highly selective and sensitive electrochemical biosensors. A novel biosensing platform, consisting of graphene oxide and a silk fibroin-based nanocomposite, was developed for precise detection of dopamine. The fabricated interface showed superior electrochemical properties and excellent sensitivity, selectivity, and stability.
Article
Engineering, Multidisciplinary
Jagadeesh Suriyaprakash, Lianwei Shan, Neeraj Gupta, Hao Wang, Lijun Wu
Summary: This study developed a flexible point-of-care sensor using a Janus carbon nanocomposite (JCC) consisting of asymmetric molecular engineered porous/highly ordered carbon nanomaterial for the specific detection of ascorbic acid (AA) at a low concentration. The JCC was constructed through a new strategy of simultaneous covalent and non-covalent molecular grafting techniques, resulting in improved charge mobility, electron transfer, energy density, and stability. The integrated flexible device exhibited high selectivity, durability, stability, and reproducibility, making it a promising platform for developing high-performance sensors.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Md. Shalauddin, Shamima Akhter, Wan Jeffrey Basirun, Md. Akhtaruzzaman, Mohammed Alhaji Mohammed, Nor Mas Mira Abd Rahman, Noordini Mohamad Salleh
Summary: This study reported a nanocomposite prepared from nanocellulose, functionalized multiwall carbon nanotubes, and bio-synthesized copper nanoparticles for the electrochemical detection of acetaminophen and diclofenac sodium. The modified electrode showed high selectivity, sensitivity, and stability, and exhibited great potential for the simultaneous detection of acetaminophen and diclofenac sodium in pharmaceutical formulation and human blood serum.
SURFACES AND INTERFACES
(2022)
Article
Environmental Sciences
Ji-Eun Kim, Myung-Haing Cho
Summary: In this study, the effects of two types of multiwall carbon nanotubes (MWCNTs) on the kidneys and aging were compared. It was found that pristine MWCNTs could induce inflammation, apoptosis, insufficient autophagy, and premature kidney aging, with decreased Klotho levels and increased levels of DKK-1, FGF-23, and sclerostin in the serum. This study suggests that using MWCNTs in the industrial field may have toxic effects on the kidneys, and the dispersibility of the nanotubes can affect their toxicity.
Article
Materials Science, Multidisciplinary
Emad A. Khudaish, Adhara Al-Badri
Summary: Functionalized carbon nanotubes with excess oxygen-containing functional groups were prepared using a modified Hummers method, showing exceptional electrochemical activity for norepinephrine detection in serum blood samples with a low detection limit. The sensor exhibited good selectivity and recovery rates.
Article
Chemistry, Analytical
Chao Chen, Chenxi Wang, Pengcheng Zhao, Jin Zhang, Dechong Ma, Junjie Fei
Summary: The nanocomposite Au@rGO-MWCNT was synthesized through hydrothermal method, and a temperature-controlled composite sensing film was prepared. The sensor exhibits good temperature sensitivity and reversibility to dopamine, turning from an off state to an on state based on the lower critical solution temperature of the polymer. The method provides a new avenue for the application of temperature-sensitive polymers in detecting dopamine.
Article
Chemistry, Multidisciplinary
Ankur Srivastava, Kshitij R. B. Singh, Mrituanjay D. Pandey, Jay Singh
Summary: This study successfully synthesized distinctive ternary nanocomposites with excellent electrochemical dopamine biosensing properties. Effective surface contacts and increased conductivity were achieved through the combination of La2O3, rGO, and AgNPs, resulting in enhanced sensitivity and affinity of the bioelectrode.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Analytical
Ayesha Kousar, Ishan Pande, Laura F. Pascual, Emilia Peltola, Jani Sainio, Tomi Laurila
Summary: One of the major challenges in measuring dopamine (DA) using electro-chemical methods in living organisms is to achieve selectivity in the presence of interfering substances like ascorbic acid (AA) and uric acid (UA). Researchers have used complicated multimaterial structures and ill-defined pretreatments to enhance selectivity. However, the lack of control over the electrode structures has made it difficult to establish a relationship between selectivity and structure. Carbon nanofiber (CNF) electrodes have shown promise in neurobiological applications due to their easily customizable structure. In this study, the sensitivity and selectivity of CNF electrodes towards DA were controlled by adjusting the lengths of the CNF during the fabrication process while maintaining similar surface chemistries. It was found that increasing the fiber length enhanced the sensitivity towards DA while also causing a shift in the oxidation peaks of AA and DA, leading to excellent selectivity.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Keerthi Prabhu, Shweta J. J. Malode, Raviraj M. M. Kulkarni, Nagaraj P. P. Shetti
Summary: The electrochemical degradation of 1-naphthaleneacetic acid (1-NAA) using MWNTs and Ca-ZnO nanoparticles embedded in CPEs was studied. The impact of various factors on 1-NAA was investigated by analyzing samples of water, fruits, soil, and vegetables using SWV technique. The sensor displayed exceptional catalytic properties in a pH 3.0 0.2 M PB solution.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Muhammad Adnan Ashraf, Atif Islam, Muhammad Arif Butt, Tajamal Hussain, Rafi Ullah Khan, Shahid Bashir, Javed Iqbal
Summary: The study fabricated mixed matrix membranes (MMMs) of cellulose acetate/poly(vinylpyrrolidone) (CA/PVP) infused with acid functionalized multiwall carbon nanotubes (f-MWCNTs) for hemodialysis application. Characterization using FTIR, SEM, and other methods showed improved thermal stability, water permeate flux, and surface morphological analysis with the incorporation of f-MWCNTs. Urea and creatinine clearance performance also significantly increased with the f-MWCNTs integrated membranes.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Analytical
Xu Chai, Yongbiao Li, Chaonan Ma, Minjie Guo, Zhi Fan, Jin Zhao, Bowen Cheng
Summary: An electrochemical sensor based on RGO-CD-AgNP-POM was developed for simultaneous detection of UA and L-Tyr, showing wide linear ranges and low detection limits. The nanocomposite is expected to enhance sensing performances in real samples and provides a new platform for developing electrode materials.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Physical
Aijuan Xie, Bo Yuan, Jiaqi Lin, Jie Pan, Menglu Li, Jiaojie Wang, Shixin Jiang, Shichao Zhu, Shiping Luo
Summary: An electrochemical sensor based on ZIF-67 derived Co3O4-LaMn0.5Ni0.5O3/MWCNTs composite was successfully fabricated for the simultaneous determination of protocatechuic acid (PCA) and ascorbic acid (AA). The modified electrode effectively enhanced the electrocatalytic activity for the oxidation of PCA and AA, demonstrating significantly reduced oxidation peak potential.
SURFACES AND INTERFACES
(2023)
Article
Electrochemistry
Peihong Deng, Jinxia Feng, Jingyun Xiao, Yanping Wei, Jinsong Zuo, Junhua Li, Jianhua Ding, Quanguo He
Summary: A sensitive method for uric acid detection was developed using a nanocomposite of ceria nanoparticles and reduced graphene. The method showed excellent selectivity and high sensitivity for uric acid detection, with a linear range of 0.02-20 mu M and a low detection limit of 8.0 nM.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Duan-Chao Wang, Hou-Yong Yu, Zhaofeng Ouyang, Dongming Qi, Ying Zhou, Anqi Ju, Ziheng Li, Yiwen Cao
Summary: In this study, composite fibers with chain-ring structures were prepared by connecting cellulose nanofiber (CNF) and multi-walled carbon nanotubes (MWCNT) covalently, solving the problems of MWCNT aerogel formation and phase separation during compounding. The resulting aerogels exhibited mechanical resilience and chain-ring fibers, enabling high compression resistance and application in flexible supercapacitors and sensors.
Article
Engineering, Environmental
Li Zhang, Jia-Qi Fan, Qiong-Qing Zheng, Sai-Jin Xiao, Cheng-Rong Zhang, Shun-Mo Yi, Xin Liu, Wei Jiang, Quan-Gen Tan, Ru-Ping Liang, Jian-Ding Qiu
Summary: In this study, a two-dimensional mesoporous fluorescent covalent organic framework named TY-Hz COF was developed for simultaneous detection and recovery of Au(III). The TY-Hz COF showed rapid and sensitive response to Au(III) with electron transfer-induced fluorescence quenching and visual color change. Moreover, it exhibited excellent adsorption capacity and selectivity towards Au(III). These findings suggest that TY-Hz COF has great potential for Au(III) detection and recovery in e-waste.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Analytical
Li Zhang, Quan-Gen Tan, Jia-Qi Fan, Chen Sun, Yu-Ting Luo, Ru-Ping Liang, Jian-Ding Qiu
Summary: Microfluidic techniques including CE, CEC, and MEKC have been widely used for the chiral separation of biomolecules. Different strategies are employed in these techniques, such as CS-bonded stationary phase in CEC, addition of CS to the mobile phase in CE, and involvement of chiral surfactants and/or CS in pseudostationary phases of MEKC. Microfluidic techniques offer advantages of high selectivity, excellent separation efficiency, and low cost compared to conventional techniques. This review discusses innovations in detection systems, separation mechanism, CS, and chiral analytes of biomolecules, as well as the most applied CSs and the chiral separation of representative biomolecules. Prospects and future developments of microfluidics for chiral separation are also proposed.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Wei-Rong Cui, Wei Xu, Yi-Ru Chen, Kai Liu, Wei-Bin Qiu, Yibao Li, Jian-Ding Qiu
Summary: In this study, a novel olefin-linked cationic covalent organic framework (COF) BDBI-TMT was synthesized by integrating robust imidazolium salt-based linkers with triazine building blocks, which showed excellent stability in acid/base solutions and radiation. BDBI-TMT exhibited ultra-fast adsorption kinetics and high capture capacity for ReO4- (a non-radioactive surrogate of 99TcO4-), attributed to the abundance of precisely tailored imidazolium salt-based units and the hydrophobicity of the alkyl skeleton. The selective and reversible extraction of ReO4- under extreme conditions demonstrates the great potential of olefin-linked cationic COFs for radionuclide remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Qing-Hua Hu, You-Gan Wang, Xin Gao, Yu-Zhen Shi, Sen Lin, Ru-Ping Liang, Jian-Ding Qiu
Summary: Researchers have successfully constructed two isostructural MOFs, NCU-3-X (X = Cl, Br), for efficient adsorption of ReO4-/TcO4- in nuclear waste. NCU-3-Br exhibited superior adsorption performances due to the smaller electronegativity of bromine atoms and the presence of one-dimensional hydrophobic channels in its framework. The adsorption capacity of NCU-3-Br to ReO4-/TcO4- was confirmed through experiments.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Xin Liu, Rui-Xiang Bi, Feng-Tao Yu, Cheng-Rong Zhang, Qiu-Xia Luo, Ru-Ping Liang, Jian-Ding Qiu
Summary: This study synthesized Bi4Ti3O12 (B1) particles, crosslinked B1 with 6-chloro-1,3,5-triazine-diamine (DCT) to obtain B2, and formed B3 using B2 and 4-formylbenzaldehyde (BA-CHO) to investigate its usefulness for photocatalytic UVI removal. B3, with the D-7E-A array structure, effectively reduced UVI to UIV due to energy level matching effects. The UVI removal capacity of B3 under simulated sunlight was 684.9 mg g-1, 2.5 times greater than B1 and 1.8 times greater than B2.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Xiao-Juan Chen, Cheng-Rong Zhang, Xin Liu, Jia-Xin Qi, Wei Jiang, Shun-Mo Yi, Cheng-Peng Niu, Yuan-Jun Cai, Ru-Ping Liang, Jian-Ding Qiu
Summary: Developing ideal adsorbents for efficient and fast uranium extraction has always been a challenge. In this study, a soft three-dimensional covalent organic framework (TAM-DHBD) with a fivefold interpenetrating structure was prepared as a novel porous platform for the efficient extraction of radioactive uranium. TAM-DHBD exhibited exceptional crystallinity, prominent porosity, and excellent chemical stability, allowing for high selectivity and rapid adsorption of uranium.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Zhenzhen Xu, Shanshan Yu, Jinyu Wang, Fengtao Yu, Mei Xu, Jianbo Xiong, Saijin Xiao, Yan Liu, Yan He, Jie Xu, Zhibin Zhang, Jianding Qiu
Summary: In this study, a molecular engineering strategy was used to simultaneously achieve high degree of functionalization and large BET in conjugated microporous polymers (CMPs) as an effective uranium adsorbent. The PePy-SO3H adsorbent, which contains a pyrene-based monomer with extended pi-conjugation degree and high rigidity, exhibited strong affinity toward uranium with a distribution coefficient of 2.3 x 104 mL g-1 and an exceptionally high adsorption capacity of 579.0 mg g-1. This work demonstrates the advantages of molecular engineering strategies in optimizing the purification performance of CMPs adsorbents for uranium-containing wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Xiao-Rong Chen, Cheng-Rong Zhang, Wei Jiang, Xin Liu, Qiu-Xia Luo, Li Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: In this study, a novel three-dimensional cationic covalent organic framework (TFAM-BDNP) was designed and synthesized via Zincke reaction for the selective capture of TcO4-/ReO4-. TFAM-BDNP exhibited high adsorption capacity and extremely fast exchange kinetic for ReO4-, attributed to its open 3D hydrophobic channels, abundant active sites, and high chemical stability. Furthermore, TFAM-BDNP showed good adsorption performance for ReO4- in the presence of competing anions and under a wide pH value range, indicating its potential for efficient capture of TcO4-/ReO4- in complex environmental systems.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yu-Zhen Shi, Qing-Hua Hu, Xin Gao, Li Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: An indium-based metal-organic framework (In-MOF) is reported for highly efficient removal of radioactive iodine from seawater. In-MOF shows high chemical stability, high adsorption capacity, and high selectivity towards iodine, leading to a high removal rate of 93.86% from seawater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Xiang-Lan Mao, Qiu-Xia Luo, Yuan-Jun Cai, Xin Liu, Qiao-Qiao Jiang, Cheng-Rong Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: The isomerism of a covalent organic framework (COF) greatly affects its electrochemiluminescence (ECL) performance. In this study, two isomeric COFs, TFPB-BD(OMe)(2)-H and TAPB-BD(OMe)(2)-H, were synthesized based on different imine linkages and conversion to the quinoline structure. Despite having the same composition and similar structures, the two COFs exhibited significant differences in photoelectrochemical and ECL fields. TFPB-BD(OMe)(2)-H showed a superior ECL emission compared to TAPB-BD(OMe)(2)-H due to stronger polar interaction and enhanced electron interactions.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Xin Gao, Qing-Hua Hu, Yu-Zhen Shi, Ru-Ping Liang, Jian-Ding Qiu
Summary: Here, we report a new adsorbent named Zn-Vlm6 with highly selective and high adsorption capacity for removing I3- from water. Zn-Vlm6 showed excellent thermal and chemical stability and achieved a high adsorption capacity of 1680.7 mg g-1 for I3-. It can selectively capture I3- in the presence of competing anions and remove up to 96.4% of I3- from different environments. Moreover, Zn-Vlm6 can also adsorb gaseous iodine up to 2470 mg g-1.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xin Liu, Rui-Xiang Bi, Zhi-Hai Peng, Lan Lei, Cheng-Rong Zhang, Qiu-Xia Luo, Ru-Ping Liang, Jian-Ding Qiu
Summary: Plasmonic photocatalysis using Bi/Bi2O3_x@COFs as the catalyst effectively removes radioactive uranium from rare earth tailings wastewater. The presence of oxygen vacancy and Schottky potential well in Bi/Bi2O3_x enhances the light absorption performance and electron density of the COFs layer. The synergy between photogenerated electrons and hot electrons enables Bi/ Bi2O3_x@COFs to have high removal capacity and separation coefficient for U(VI). The introduction of localized surface plasmon resonance and Schottky potential well provides a new approach to improve photocatalytic efficiency.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Shun-Mo Yi, Cheng-Rong Zhang, Xin Liu, Wei Jiang, Ru-Ping Liang, Jian-Ding Qiu
Summary: A methyl-rich cationic polymer network (TBT-TCB) was obtained through molecular engineering and successfully applied for the removal of 99TcO4- in harsh environments. The methyl groups in TBT-TCB greatly enhance its resistance to strong acid/alkali, and also improve its hydrophobicity for better affinity towards 99TcO4-. TBT-TCB exhibits excellent robustness, reusability, adsorption selectivity, and adsorption kinetics for 99TcO4-/ReO4-.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Li Zhang, Chen Sun, Sai-Jin Xiao, Quan-Gen Tan, Gui-Ping Yang, Jia-Qi Fan, Yu-Ting Luo, Ru-Ping Liang, Jian-Ding Qiu
Summary: Sulfur mustard (HD) is a highly toxic substance, and exploring efficient catalysts for its degradation is of great significance. Covalent organic frameworks (COFs) as photocatalysts show great potential in HD decontamination. In this study, a photosensitive COF was constructed and silver nanoparticles were deposited on it through postmodification, resulting in enhanced photocatalytic degradation performance.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiao-Rong Chen, Cheng-Rong Zhang, Xin Liu, Ru-Ping Liang, Jian-Ding Qiu
Summary: A novel fluorescent ionic covalent organic framework (BTTA-BDNP) based on a linked carbazole unit was developed for the simultaneous monitoring and capture of TcO4-/ReO4-. BTTA-BDNP demonstrated a rapid fluorescence response with a low detection limit (66.7 nM) for ReO4- (a non-radioactive substitute for TcO4-). Moreover, BTTA-BDNP exhibited excellent selectivity and efficiency in trapping ReO4- in complex environments due to its high charge density and hydrophobic skeleton.
CHEMICAL COMMUNICATIONS
(2023)
