Article
Multidisciplinary Sciences
Hajir Hilal, Qiang Zhao, Jeongwon Kim, Sungwoo Lee, MohammadNavid Haddadnezhad, Sungjae Yoo, Soohyun Lee, Woongkyu Park, Woocheol Park, Jaewon Lee, Joong Wook Lee, Insub Jung, Sungho Park
Summary: This study demonstrates a new three-dimensional nanostructure with polarization-independent SERS activity, prepared through a precise synthesis method. This unique structure shows efficient interaction with light and analytes, providing new possibilities for optical-based sensing.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Wencheng Zhong, Kangqiang Liang, Wenfeng Liu, Li Shang
Summary: In this study, a new design of Forster resonance energy transfer-based dual-color photoswitchable fluorescent nanoparticles (DPF NPs) was reported by using ligand-protected gold nanoclusters (AuNCs). The ultrasmall-sized AuNCs act as the FRET donors and also regulate the properties of spiropyran through ligand-spiropyran interactions. These DPF NPs exhibit high fluorescence on/off ratios for both green and red fluorescence emission, and show good reversibility during cycled photo-stimulation. Cell imaging experiments demonstrated that DPF NPs can specifically accumulate in lipid droplets and enable photoswitchable dual-color imaging in living cells.
Article
Chemistry, Multidisciplinary
Ju Lu, Shenfei Zong, Zhuyuan Wang, Chen Chen, Yizhi Zhang, Hong Wang, Yiping Cui
Summary: This article introduces a dual-labeled graphene quantum dot-based Forster resonance energy transfer nanoprobe suitable for single-molecule localization microscopy imaging, demonstrating fluorescence intensity fluctuations and excellent blinking behavior under specific excitation conditions, with great potential for super-resolution imaging in cells.
Article
Materials Science, Multidisciplinary
Merve Karabiyik, Ozgenc Ebil
Summary: A novel functional polymer-bonded quantum dots (QDs)-nitroxide radical complex was demonstrated and investigated for its potential as a fluorescent sensor structure.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Mattia Ghirardello, Radhe Shyam, Xia Liu, Teodoro Garcia-Millan, Imke Sittel, F. Javier Ramos-Soriano, Kathreena Kurian, M. Carmen Galan
Summary: The development of efficient and sensitive tools for the detection of brain cancer is crucial due to late diagnosis and treatment ineffectiveness. This article presents a low-cost, practical, and versatile method for labeling proteins and antibodies with fluorescent carbon dots (CD) to create robust and photostable diagnostic probes. The new class of Ab-CD conjugates produced using this method was successfully applied for immunohistochemical staining of human brain tissues, validating its potential in clinical settings.
NANOSCALE ADVANCES
(2022)
Review
Biotechnology & Applied Microbiology
Hong Ruan, Li Zhou
Summary: The rapid industrialization has caused serious environmental problems and increased disease and healthcare issues. The development of simple and effective biosensors is crucial for disease prevention and treatment. Sulfur quantum dots, as a new fluorescent nanomaterial, offer great potential in the fields of bioimaging and biosensing.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Engineering, Environmental
P. Keerthana, Avijit Kumar Das, M. Bharath, Munmun Ghosh, Anitha Varghese
Summary: A fluorescent ratiometric nanosensor was developed using biomass-derived carbon quantum dots with surface modification for highly selective identification of cadmium ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Applied
Huang Shuai, Cheng Xiang, Lei Qian, Feng Bin, Liu Xiaohui, Ding Jipeng, Zhong Chang, Liang Jiahui, Zeng Wenbin
Summary: The study summarizes recent efforts in developing fluorescent probes for detecting mercury ions, highlighting strategies, methods, and capabilities of the probes, as well as proposing prospects for future research.
Article
Engineering, Biomedical
Bin Wu, Kun Li, Feiyue Sun, Jintong Niu, Rongrong Zhu, Yechang Qian, Shilong Wang
Summary: Visualization technology has become a trend in tumor therapy, with graphene quantum dots showing promise for tumor diagnosis. The combination of sulfur-doped graphene quantum dots with etoposide in layered double hydroxides offers a reliable strategy for precise visualization therapy. The trifunctional LDH@SGQD-VP16 integrated nanoprobes can achieve targeted aggregation, fluorescence visualization, and chemotherapy simultaneously, demonstrating enhanced therapeutic effects in gastric cancer.
ADVANCED HEALTHCARE MATERIALS
(2021)
Review
Chemistry, Physical
Tanveer A. Tabish, Hasan Hayat, Aumber Abbas, Roger J. Narayan
Summary: The electrochemical biosensing systems coupled with graphene quantum dots have shown great potential for cancer diagnostic strategies, especially in identifying early tumorigenesis changes and detecting ultralow concentrations of biomarkers for distinguishing normal and malignant cells. Graphene quantum dots, with their comparable size to biomolecules, provide an ideal platform for studying proteins, cells, and viruses.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Asim Onal, Guncem Ozgun Eren, Rustamzhon Melikov, Lokman Kaya, Sedat Nizamoglu
Summary: In recent years, quantum dots (QDs) have emerged as a powerful building block for liquid-crystal display (LCD) technology, particularly in the form of color enhancement films. However, the challenge remains to develop efficient and wide color gamut LEDs for backlighting purposes. This study presents QD-based white LEDs that exhibit a high external quantum efficiency (EQE) of 39.8% and a wide NTSC color gamut coverage of 133.3%. These LEDs utilize giant CdSe/CdS core/shell QDs for red-emitting spectral range and green-emitting CdZnSeS/ZnS alloyed core/shell QDs, resulting in high photoluminescence quantum yield (PLQY) and narrow full width at half maximum (FWHM) values. The incorporation of QDs in liquid matrix on blue LED chips for LCD TV backlighting improves image brightness and color vibrancy, showcasing the potential of QD-based white LEDs for next-generation display technology.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Chemistry, Multidisciplinary
Weishu Guo, Jun Chen, Teng Ma, Ziyi Chen, Mulin Li, Haibo Zeng, Jian Lu
Summary: This paper reviews the progress of direct photolithography research focused on QD-polymer materials in the new display technology based on quantum dots. It also presents recent advances in monochromatic/multicolor light patterning. Additionally, the article proposes a de-photomasking scheme for direct lithography. This paper provides guidance for advancing QD-polymer for high-quality patterning and display applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Fei Ma, Ning-ning Zhao, Meng Liu, Qinfeng Xu, Chun-yang Zhang
Summary: This study reports a new single-molecule fluorescent biosensor for the simple and ultrasensitive detection of alkaline phosphatase (ALP). The biosensor enables efficient amplification and transduction of the target ALP signal through enzyme-free assembly and disassembly processes, significantly simplifying the experimental procedure and improving the assay accuracy.
ANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Suyash Rai, Vijay K. Singh, Brijesh Singh Chauhan, S. Srikrishna, Preeti S. Saxena, Anchal Srivastava
Summary: This study investigates the influence of pH on the photophysical properties of functionalized tungsten disulfide quantum dots (f-WS2-QDs) and demonstrates their stable fluorescence in both acidic and basic media. Additionally, the f-WS2-QDs are shown to be potential fluorescent probes for high-contrast in vivo imaging.
ACS APPLIED NANO MATERIALS
(2023)
Article
Biology
Hua Leonhard Tan, Stefanie Bungert-Plumke, Daniel Kortzak, Christoph Fahlke, Gabriel Stoelting
Summary: The oligomeric state of plasma membrane proteins is crucial for their function and can be determined using super-resolution microscopy techniques. The dual-color colocalization (DCC) approach we developed allows for accurate counting of protein subunits and simplifies data processing.
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.