Article
Spectroscopy
Wenlu Wu, Zhongfei Hu, Cai Shi, Ruoqian Xu, Yiming Zhao, Yujie Ding
Summary: A Fe3+ optical sensor was developed by linking CdTe quantum dots and a Rhodamine B derivative using gamma-cyclodextrin as a bridge. The nanoprobe displayed a response to Fe3+ through a fluorescence resonance energy transfer process. The probe showed satisfactory linearity in the fluorescent quenching between 10 and 60 μM Fe3+ concentration, with a limit of detection of 2.51 μM. The probe was successfully used for the determination of Fe3+ in human serum with high sensitivity and exceptional selectivity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Alexey M. Vervald, Kirill A. Laptinskiy, Galina N. Chugreeva, Sergey A. Burikov, Tatiana A. Dolenko
Summary: This article discusses the mechanisms of photoluminescence quenching in aqueous solutions of carbon dots synthesized by hydrothermal methods. The study reveals that different metal ions contribute to the quenching of photoluminescence through various mechanisms, including inner filter effect, static quenching caused by (de)protonation of carbon dot surface groups with pH changes, and dynamic quenching. The research provides an algorithm for analyzing the photoluminescence quenching of carbon nanoparticles by any ions in complex media.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Spectroscopy
Anmol Arora, Kriti Sharma, S. K. Tripathi
Summary: This study investigated the impact of luminescent MoSe2 quantum dots on trypsin activity and found that MoSe2 quantum dots formed a stable complex with trypsin through electrostatic interactions. This finding is significant for the development of trypsin detection methods and understanding the bioavailability of MoSe2 quantum dots in biological systems.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Materials Science, Multidisciplinary
Reena K. Sajwan, Purnima Sharma, G. B. V. S. Lakshmi, Pratima R. Solanki
Summary: A fluorescence Turn-On based strategy using MPA-CdSe QDs was utilized for urea determination, with a detection range from 1 to 120 mM and a lower detection limit of 1 mM. The pH sensitivity of MPA-CdSe QDs was key in detecting urea through the enzymatic reaction with urease and the release of ammonia.
Review
Chemistry, Multidisciplinary
G. Prabakaran, K. Velmurugan, C. Immanuel David, R. Nandhakumar
Summary: Fluorescence sensing based on Forster Resonance Energy Transfer (FRET) using graphene-based nanomaterials has gained significant interest in various fields. Graphene quantum dots (GQDs), graphene oxide (GO), reduced graphene oxide (rGO), and graphdiyne (GD) can be used as donors/acceptors in FRET-based sensing due to their unique properties. This review discusses the basics of FRET and the role of graphene-based nanomaterials in sensing various analytes, as well as explaining the lower detection ranges. Challenges and future directions for designing nanomaterials with improved sensing performance are also highlighted.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Umar Nishan, Irfan Ullah, Rukhsana Gul, Amir Badshah, Nawshad Muhammad, Naeem Khan, Mohibullah Shah, Muhammad Asad, Saifullah Afridi, Riaz Ullah, Essam A. Ali, Suvash Chandra Ojha
Summary: Ascorbic acid is vital for human beings and its abnormal level can lead to various illnesses. In this study, silver nanoparticles were synthesized and used as a sensing platform for the detection of ascorbic acid in blood serum samples. The optimized biosensor showed sensitivity and simplicity for the detection of ascorbic acid in plasma samples.
Article
Chemistry, Analytical
Amanpreet Singh, Gagandeep Singh, Navneet Kaur, Narinder Singh
Summary: In this study, a nano sensor system based on biomass-derived carbon quantum dots (CQDs) and naphthalimide was developed for ratiometric detection of nitric oxide (NO) in pure aqueous media. The sensor demonstrated high selectivity towards NO with a detection limit of 15 nM. Moreover, it was also utilized for the indirect detection of nitrite (NO2 ) in food samples for food safety and monitoring.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Applied
Xinyao Wang, Shiqi Liuye, Xinhuan Ma, Shiqiang Cui, Shouzhi Pu
Summary: A novel photo-controlled solid-state fluorescence switching based on carbon dots (CDs) and diarylethene was designed and constructed. The fluorescence switching not only had excellent modulation efficiency, but also exhibited good photochromic properties. The mechanism of the reversible fluorescence modulation was attributed to the FRET between the CDs (energy donor) and the closed-ring diarylethene (energy acceptor). This work suggests the strategy of constructing solid-state fluorescence switching is feasible, and will provide new ways for the potential application of CDs and diarylethene.
Article
Agricultural Engineering
Xiaoxu Yang, Shiyao Hou, Tingting Chu, Jiazhi Han, Runsen Li, Yanzhu Guo, Yumei Gong, Haiming Li, Zhiwei Wan
Summary: The study utilized lignin to prepare magnesium and nitrogen-doped carbon quantum dots, achieving high emission quantum yield in green fluorescence. These CQDs can also transition from green to yellow color at pH 5.4, showing potential for detecting pH values in complex environments.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Review
Nanoscience & Nanotechnology
Sharanabasava D. Hiremath, Mainak Banerjee, Amrita Chatterjee
Summary: In the past decade, MnO2 nanostructures have been extensively used in chemosensing applications due to their unique redox properties and structural diversity. The most common strategy is to use low-dimensional fluorescent dots as donors and 2D MnO2 nanosheets as acceptors in Fo''rster resonance energy transfer (FRET)-based chemosensing assays. This review focuses on the detection strategies involving fluorescent nanodots and MnO2 nanosheets, with an emphasis on the detection of various analytes through the decomposition of MnO2 nanosheets triggered by analyte-triggered redox reactions. The review also discusses the synthesis, properties, and FRET mechanism of nanodots and MnO2 nanosheets.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Analytical
Xinlu Li, Tongtong Zhu, Yuwei Du, Haiyang Yan, Ruhong Yan, Wen-Fei Dong, Li Li
Summary: Beta-carotene is a natural antioxidant with important effects on human growth and immunity. N-doped carbon quantum dots (O-CDs) were prepared for intracellular and in vitro detection of beta-carotene through co-heating carbonization. O-CDs showed good linear relationship with beta-carotene and exhibited targeting of lysosomes in cell imaging.
Article
Biochemistry & Molecular Biology
Kristyna Pavelicova, Lucie Vanickova, Yazan Haddad, Lukas Nejdl, Jan Zitka, Silvia Kociova, Filip Mravec, Tomas Vaculovic, Mirek Macka, Marketa Vaculovicova, Vojtech Adam
Summary: A new method for characterizing protein oligomerization based on FRET and capillary electrophoresis was reported, utilizing QDs and Cy3 as the donor-acceptor pair to study metallothionein dimer formation in the presence of Cd2+ ions. The successful monitoring and confirmation of MT dimer formation were achieved under aerobic conditions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Analytical
Nuo Duan, Kexin Ren, Mingqian Song, Xinyue Zhang, Zhouping Wang, Fei Jia, Shijia Wu
Summary: In this study, a dual-donor fluorescence resonance energy transfer (FRET) aptasensor was developed for simultaneous detection of histamine (HIS) and tyramine (TYR) using quantum dots and molybdenum sulfide nanosheets. The method showed good sensitivity and detection limits, and can be applied to the sensitive detection of biogenic amines in animal-derived foodstuff.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ting Meng, Zifei Wang, Ting Yuan, Xiaohong Li, Yunchao Li, Yang Zhang, Louzhen Fan
Summary: This study presents a gram-scale synthesis of red/green/blue solid-state fluorescent carbon quantum rings with high quantum yields, offering a potential alternative to REE-free phosphor-converted white LEDs. These R/G/B-SBF-CQRs-based LEDs emit warm white light with low CCT, high CRI, and high luminous efficiency, comparable to REE-phosphor-based LEDs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Nan Li, Xuezhe Dong, Xugui Lv, Yunfei Li, Qingyu Ma, Ruifang Guan, Zheng Xie
Summary: We synthesized sulfur and nitrogen co-doped carbon dots with tunable fluorescence in both solutions and solid matrices, controlled by surface state. Furthermore, it can be used for trace water detection in various organic solvents, particularly in acetone, with a low limit of detection of 0.042%.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)