Article
Chemistry, Physical
Zihan Zeng, Wen Li, Yuting Li, Zhuang Zhao, Kaiyue Lin, Xiaoqiang Fan, Minhao Zhu
Summary: Graphene quantum dots (GQDs) were prepared by a hydrogen peroxide-containing hydrothermal reaction using graphene oxide (GO) as a precursor. The GQDs showed excellent photoluminescence (PL) properties and could reflect and monitor the lubrication state between sliding interfaces. When used as additives in polyethylene glycol (PEG), GQDs significantly reduced wear and improved wear resistance.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Ankita Chandra, Preeti Ravindra Bhoge, K. R. Chethan, Chethan D. D. Shanthamurthy, Raghavendra Kikkeri
Summary: In this study, highly fluorescent gold nanoclusters were engineered with sulfated oligo-iduronic acid ligands (I34), which showed strong binding to the HB-EGF receptor over FGF2, and regulated EGF receptor-mediated cancer cell homing in both 2D and 3D cell culture systems. These findings provide a new practical imaging tool for carbohydrate research.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Jafar Molaei
Summary: Layered double hydroxides (LDHs) nanosheets based on Ca and Al were synthesized and in situ coated with polyethylene glycol (PEG). Carbon quantum dots (CQDs) derived from citric acid were hydrothermally synthesized and targeted with folic acid on LDH nanosheets. Doxorubicin hydrochloride (DOX) was loaded with an efficiency of 32% on the LDH nanohybrid and showed pH-dependent drug release, reaching up to 83% in acidic environment and 63% in physiological pH within 12 hours. The synthesized CQDs can serve as pH-dependent fluorescent and targeted nanocarriers in drug delivery systems.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Environmental Sciences
Sai Kumar Tammina, Jong-Whan Rhim
Summary: The study reveals the impact of nitrogen doping on polyethylene glycol (PEG)-derived carbon dots in terms of optical, antibacterial, and antioxidant activity. The carbon dots' size and charge were measured using transmission electron microscopy (TEM) and a zeta sizer, with an average size of 2.14 +/- 0.6 nm and a surface charge of -20 mV. Nitrogen-doped carbon dots exhibited potent antioxidant and significant antimicrobial activity, while undoped carbon dots showed no significant activity. Additionally, loading the nitrogen-doped carbon dots into a carboxymethyl cellulose (CMC)/agar-based film resulted in increased physicochemical properties and UV blocking capability without sacrificing transparency. The film with 8% nitrogen-doped carbon dots completely destroyed Escherichia coli and Listeria monocytogenes after 6 hours of incubation.
Article
Chemistry, Multidisciplinary
Hoon Hyun, Min Ho Park, Gayoung Jo, Bo Young Lee, Jae Won Choi, Heung Jae Chun, Hyeon Soo Kim, Dae Hyeok Yang
Summary: The study developed a novel drug carrier for breast cancer therapy, with MGC/CDPF-ic-PTX showing promising anti-cancer effects, enhanced cellular uptake, sustained release, and potential therapeutic efficacy against breast cancer.
Article
Thermodynamics
Yogesh G. Joshi, Dinesh R. Zanwar, Sandeep S. Joshi, Vinit Gupta
Summary: In this study, the performance parameters of the vapor compression refrigeration system are investigated using a novel amine treated graphene quantum dots (AGQD) based nanosuspension. The synthesis and thermophysical property evaluation of the AGQD nanosuspension are carried out in the first phase. The second phase focuses on investigating the performance parameters of the refrigeration system by incorporating the synthesized nanosuspension.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Chemistry, Multidisciplinary
Yunseong Ji, Yu-Meng Li, Jin Gwan Seo, Tae-Su Jang, Jonathan Campbell Knowles, Sung Ho Song, Jung-Hwan Lee
Summary: Stem cell therapy is a novel and promising field that requires accurate labeling methods to track the translocation of transplanted cells. Graphitic quantum dots offer high photoluminescence ability, biocompatibility, and potential for tracking transplanted cells.
Review
Energy & Fuels
Norazuwana Shaari, Siti Kartom Kamarudin, Raihana Bahru
Summary: Carbon quantum dots (CQDs) and graphene quantum dots (GQDs) are frequently mentioned in recent studies for their unique potential in electrical, optical, and optoelectrical properties. They are highly stable due to their carbon material and environmentally friendly nature. Various production methods and additive materials can enhance their performance, with shapes and sizes influenced by different parameters. Applications in fuel cell technology have shown improved performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Wei Fu, Jiefu Yin, Huaqiang Cao, Zhongfu Zhou, Junying Zhang, Jingjing Fu, Jamie H. Warner, Cheng Wang, Xiaofang Jia, G. Neville Greaves, Anthony K. Cheetham
Summary: The photoluminescence blinking behavior of single quantum dots under steady illumination is a significant yet controversial topic. It hinders the use of single quantum dots in bioimaging. Different mechanisms, particularly the non-radiative Auger recombination mechanism, have been proposed to explain it. Fluorescence non-blinking is observed in photocharged single graphene quantum dots (GQDs) due to the presence of singly charged trions that maintain photon emission through radiative and non-radiative Auger recombination. This phenomenon is attributed to the different energy levels caused by oxygen-containing functional groups in the GQDs, and the suppression of blinking is attributed to trap site filling caused by Coulomb blockade.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Yuxiang Jiang, Chunyu Ji, Jiajia Wu, Qiurui Han, Chen Cui, Wenquan Shi, Zhili Peng
Summary: Despite their wide applications, the synthesis and photoluminescence mechanism of carbon dots (C-dots) have received less attention, limiting their further developments. In this study, C-dots were prepared from polyethylene glycol (PEG) with different molecular weights (M.W.), and the effects of PEG M.W. on the formation, structure, and optical properties of C-dots were carefully investigated. It was found that the particle sizes, fluorescence intensities, surface chemistry, thermal stability, and bioimaging capabilities of C-dots were significantly influenced by the PEG M.W. Moreover, these C-dots showed low cytotoxicity and promising potential for cellular bioimaging.
Article
Pharmacology & Pharmacy
Elisabete Regina Fernandes Ramos Ribeiro, Luana Barbosa Correa, Eduardo Ricci-Junior, Pedro Filho Noronha Souza, Clenilton Costa dos Santos, Alan Silva de Menezes, Elaine Cruz Rosas, Prapanna Bhattarai, Mohamed F. Attia, Lin Zhu, Luciana Magalhaes Rebelo Alencar, Ralph Santos-Oliveira
Summary: In this study, films made of chitosan and graphene quantum dots were developed for application in infected wounds. These films demonstrated biocompatibility, mechanical strength, and promoted wound healing. The results suggest that the use of chitosan-graphene films could be a promising approach for treating infected wounds.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Joanna Pilch, Patrycja Kowalik, Agata Kowalczyk, Piotr Bujak, Artur Kasprzak, Ewa Paluszkiewicz, Ewa Augustin, Anna M. Nowicka
Summary: Targeted drug delivery using nanocarriers can enhance the effectiveness of cancer treatment. In this study, nanoconjugates containing quantum dots (QDs) and beta-cyclodextrin (beta-CD) with foliate-targeting properties were prepared for the delivery of the anticancer compound C-2028. The use of folic acid (FA) in the nanoconjugates significantly increased the delivery of the compound to cancer cells. Confocal microscopy studies showed that the QDs-beta-CD(C-2028)-FA entered cancer cells through multiple endocytosis pathways.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Linjia Li, Rui Zhang, Pan Hou, Yanhong Lin, Dejun Wang, Tengfeng Xie
Summary: Engineering the electronic structure of active sites on photocatalyst surfaces can significantly enhance activity through strong interactions with reactants. However, the mismatch between pristine catalysts and reactants limits efficient photo-charge transport. In this study, a surface modification strategy was employed to create hollow TiO2/poly(diallyl-dimethylammonium chloride)/graphene quantum dot (GQD) hybrid catalysts, enabling synchronous charge transfer and tunable catalyst-reactant interfacial coupling. The proposed strategy may improve specific hydrogenation reactions by manipulating the active sites of semiconductor-based catalysts.
Article
Oncology
Xiangzi Jin, Jie Yu, Meijiao Yin, Amit Sinha, Guangming Jin
Summary: The study found that Tf-PEG-DANPS has a greater ability to inhibit tumor growth and induce apoptosis compared to other drug-giving groups, while in vivo experiments showed that US+Tf-PEG-DANPS effectively inhibited tumor growth, reduced metastasis, and had fewer toxic side effects on mice.
TECHNOLOGY IN CANCER RESEARCH & TREATMENT
(2021)
Article
Optics
H. Agarwal, K. Nowakowski, A. Forrer, A. Principi, R. Bertini, S. Batlle-Porro, A. Reserbat-Plantey, P. Prasad, L. Vistoli, K. Watanabe, T. Taniguchi, A. Bachtold, G. Scalari, R. Krishna Kumar, F. H. L. Koppens
Summary: This study demonstrates a large ultra-broadband photoconductivity in twisted double bilayer graphene heterostructures with a spectral range of 2-100 μm. The unique properties of the twisted decoupled heterostructures enable parallel photoactive channels and strong photoconductivity enhancements. This research introduces a viable route for engineering gapped graphene photodetectors with three-dimensional scalability.
Article
Engineering, Chemical
Yinghui Wang, Lin Hao, Zhenxing Zhu, Jinjie Xu, Hongyuan Wei
Summary: This study employed the transient MRF approach coupled with turbulence models to investigate the impact of bottom shape and height on critical impeller off-bottom clearance and the transition of flow patterns in stirred vessels. The findings provide insights into the relationship between space requirements for circulation zones and actual space, aiding in the design of stirred vessels.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2022)
Article
Energy & Fuels
Leping Dang, Jiawei He, Hongyuan Wei
Summary: In this work, a BP/graphite nanoparticle/nitrogen-doped multiwalled carbon nanotubes (BP/G/CNTs) composite was successfully fabricated as a promising anode material for sodium-ion batteries (SIBs). The unique structure of the composite can mitigate the volume changes and provide additional electron conduction pathways during cycles, leading to improved cycling and rate performance. The integrated strategy of one-and two-dimensional carbon materials demonstrated in this study can guide the development of other anode materials for SIBs.
TRANSACTIONS OF TIANJIN UNIVERSITY
(2022)
Article
Spectroscopy
Guanwen Su, Leping Dang, Guozhao Liu, Tingyu Feng, Wei Wang, Chenguang Wang, Hongyuan Wei
Summary: In this study, a 3D ZnO/Ag substrate was fabricated using porous zeolite imidazole frameworks (ZIF-8) derived ZnO nanoparticles (NPs) followed by evaporation-induced self-assembly of Ag NPs over it. The substrate showed ultra-sensitivity for detecting various types of molecules and exhibited excellent photocatalytic performance. The simulations suggested that the widespread hot spot structures on the substrate are the main reason for its SERS ultra-sensitivity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Ecology
Hong-Yuan Wei, Yu-Xuan Ye, Hai-Jian Huang, Ming-Shun Chen, Zi-Xiang Yang, Xiao-Ming Chen, Chuan-Xi Zhang
Summary: The study generated a high-quality genome assembly of the aphid Schlechtendalia chinensis, providing a solid genetic foundation for understanding gall formation and the interaction between aphids and their host plants.
ECOLOGY AND EVOLUTION
(2022)
Article
Chemistry, Multidisciplinary
Jing Wang, Liangang Zhuo, Peng Zhao, Wei Liao, Hongyuan Wei, Yuchuan Yang, Shuming Peng, Xia Yang
Summary: This study reveals that the Lu-177 labeled CA19-9 mAb has a therapeutic effect on CRC with limited side effects. Additionally, the Zr-89 labeled mAb can be used for the diagnosis of CRC.
CHINESE CHEMICAL LETTERS
(2022)
Review
Environmental Sciences
Huanqin Wang, Jitong Zhou, Xue Li, Qiang Ling, Hongyuan Wei, Lei Gao, Ying He, Ming Zhu, Xiao Xiao, Youjiang Liu, Shan Li, Chilai Chen, Guotao Duan, Zhimin Peng, Peili Zhou, Yufeng Duan, Jianbing Wang, Tongzhu Yu, Yixin Yang, Jiguang Wang, Zhen Zhou, Huaqiao Gui, Yanjun Ding
Summary: Emissions from mobile and stationary sources in China contribute to atmospheric pollution, with ultrafine particles (UFPs), volatile organic compounds (VOCs), and other reactive gases like NH3 and NOx being the most harmful to human health. China has implemented regulations and standards to address these pollution sources. This study provides an overview of advancements in monitoring technology for mobile and stationary sources in China and presents the application of instruments in various sectors. These instruments have been used to monitor emissions from vehicles, ships, airports, the chemical industry, and power generation. The improvement in monitoring technology, along with updated regulations, assists in successful implementation. Research hotspots and future trends in atmospheric online monitoring technology are summarized to further understand pollution and enhance environmental monitoring capacity.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Physics, Applied
Qingqing Chen, Shaoyan Yang, Chengming Li, Weizhen Yao, Xianglin Liu, Huidan Niu, Rui Yang, Huijie Li, Hongyuan Wei, Lianshan Wang, Zhanguo Wang
Summary: This study reported the deposition of ZrN films on GaN/Si templates using MOCVD and analyzed the effect of substrate temperature on its growth mode, film stress, and electrical properties. Surface morphology and film roughness of the ZrN epilayers were found to vary with substrate temperature. Stress information obtained from XRD diffraction indicated the presence of large in-plane lattice stretching in the ZrN film and compressive stress in the GaN/Si template. XPS analysis showed a clear interface between the ZrN epilayer and GaN/Si template. Hall tests confirmed that the resistivity of the ZrN thin film can reach a minimum value at high temperatures.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Baihua Chen, Juncai Lu, Wanjun Mu, Yuchuan Yang, Bijun Liu, Yanqiu Yang, Hongyuan Wei, Shuming Peng, Xingliang Li
Summary: The thermodynamics of the protonation of chelidamic acid in a 0.1 mol·L-1 NaClO4 solution at 298 K and standard pressure (p = 0.1 MPa) was investigated. It was found that the protonation process consists of three steps, with the first two steps being exothermic and the last step being endothermic. The protonation steps are primarily driven by entropy, and the order of protonation sites is pyridine-N, pyridinol-OH, and carboxylate oxygen atom.
JOURNAL OF SOLUTION CHEMISTRY
(2022)
Article
Engineering, Environmental
Lijun Chen, Chenguang Wang, Guozhao Liu, Guanwen Su, Kairu Ye, Wanping He, Huiru Li, Hongyuan Wei, Leping Dang
Summary: Reasonable regulation of the micro-morphology of material can significantly enhance the related performance. In this study, bismuth tungstate (BWO) porous hollow spheres with a flower-like surface were successfully prepared, which showed improved photocatalytic performance due to the unique morphology. By anchoring black phosphorous quantum dots (BPQDs) onto the nanosheets of BWO, efficient separation of photogenerated charges was achieved, and attractive photocatalytic performance was observed. The degradation pathway of amoxicillin (AMX) and other antibiotics was proposed based on the detected intermediates.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Zixuan Liu, Lin Hao, Xiaoyi Han, Zhengrong Cao, Hongyuan Wei
Summary: In this article, two-feed preheating strategies and heat pump vapor recompression are used to improve the thermodynamic efficiency and economic performance of extractive distillation. The case study of methanol and acetone separation process shows that two-feed preheating strategies are more efficient and have less waste heat fraction removed by the condenser than one-feed preheating strategies. The application of vapor recompression further enhances the energy-saving and thermodynamic efficiency of the two-feed method. The optimal vapor ratio of 0.7 in two-feed preheating strategies leads to significant improvements in thermodynamic efficiency (52.46%) and energy savings (35.15%) compared to the original extractive distillation process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Physiology
Hongyuan Wei, Xin Xu, Guorui Feng, Shuxia Shao, Xiaoming Chen, Zixiang Yang
Summary: In general, insects grow through molting, but the male horned gall aphid, Schlechtendalia chinensis, experiences a unique phenomenon of decreasing body size after molting and as they age. Transcriptomes analysis revealed that genes related to autophagy and apoptosis may play a key role in this negative growth. Additionally, highly expressed genes in males were associated with autophagy and apoptosis, suggesting that males without the ability to feed decompose their own substances to provide energy for life activities.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Engineering, Environmental
Lijun Chen, Chenguang Wang, Guozhao Liu, Guanwen Su, Leping Dang, Hongyuan Wei
Summary: Rational utilization of surface charge property is an effective method for preparing heterojunctions. A sandwich-like product BPs/Cu/CNs was obtained by using Cu(II) to harmonize g-C3N4 nanosheets (CNs) and black phosphorous nanosheets (BPs) through the interaction of surface charges, resulting in a tight interface and high separation efficiency of photogenerated carriers. The composites exhibited excellent degradation performance for various pollutants under visible light, especially for ciprofloxacin, and the flow of photogenerated carriers in BPs/Cu/CNs was more thermodynamically favorable compared to the typical type-II band structure of BPs/CNs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Hu Song, Guanquan Wang, Jing Wang, Xia Yang, Hongyuan Wei, Shunzhong Luo
Summary: TTHMP has been found to have good bone-seeking ability in previous studies. In this research, [Tc-99m]Tc-TTHMP was prepared and evaluated for its potential application in skeletal system imaging. Corresponding TTHMP kits were also developed. The biodistribution data showed high uptake of [Tc-99m]Tc-TTHMP in the bone and rapid excretion through the urinary system. Micro-SPECT/CT imaging in normal mice and SPECT imaging in a normal Beagle dog confirmed the results. It is suggested that [Tc-99m]Tc-TTHMP can be a candidate for skeletal system imaging.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Chemistry, Analytical
Kehong Li, Wenqi Fan, Jingxuan Yan, Jing Wang, Peng Zhao, Wei Liao, Yuchuan Yang, Xia Yang, Hongyuan Wei, Yue Chen
Summary: This study investigated the radiosensitivity induced by Lu-177 and the binding affinity of cetuximab to several non-small-cell lung cancer cells (NSCLCs). Lu-177 caused apoptosis in NSCLCs through DNA double-strand damage, which was dependent on cell type. Introducing Lu-177 to the antibody enhanced its cytotoxic effect on NSCLCs. The [Lu-177]Lu-DOTA-cetuximab showed great potential for targeting diagnosis and radiotherapy in lung cancers, as demonstrated by in vivo SPECT/CT imaging and biodistribution results.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Wanping He, Kairu Ye, Huiru Li, Chenguang Wang, Hongyuan Wei, Leping Dang
Summary: Gamma-cyclodextrin-based metal-organic frameworks (gamma-CD-MOFs) have been successfully prepared with a modified vapor diffusion method, showing great potential as a biocompatible porous material for carrier-based drug delivery. Encapsulation of oregano essential oil (OEO) in gamma-CD-MOFs did not alter their crystal structure and increased their thermal stability. In vitro experiments demonstrated that gamma-CD-MOFs exhibited excellent release control. Therefore, gamma-CD-MOFs can serve as an effective carrier for delivering OEO.
NEW JOURNAL OF CHEMISTRY
(2023)
