Article
Nanoscience & Nanotechnology
Paniz Rahmani, Melissa Goodlad, Yehan Zhang, Yichen Li, Tao Ye
Summary: This study develops a one-step ligand-exchange method to produce water-soluble QD-DNA conjugates with high photoluminescence. These bioconjugates can be used for DNA-directed self assembly and demonstrated fluorescence quenching by adjacent gold nanoparticles. Such QD-AuNP dimers can serve as biosensors with improved sensitivity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Mitsuaki Yamauchi, Seiya Yamamoto, Sadahiro Masuo
Summary: The study demonstrates a novel supramolecular coassembly system that forms highly ordered QD arrangement structures via self-assembly, enabling photocontrollable photoluminescence properties. The assembled system undergoes structural changes under light, but recovers its original structure and properties over time.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Chun Zhou, Joao M. Pina, Tong Zhu, Darshan H. Parmar, Hao Chang, Jie Yu, Fanglong Yuan, Golam Bappi, Yi Hou, Xiaopeng Zheng, Jehad Abed, Hao Chen, Jian Zhang, Yuan Gao, Bin Chen, Ya-Kun Wang, Haijie Chen, Tianju Zhang, Sjoerd Hoogland, Makhsud Saidaminov, Liaoxin Sun, Osman M. Bakr, Hongxing Dong, Long Zhang, Edward H. Sargent
Summary: In this study, Perovskite quantum dots superlattices were successfully self-assembled with the assistance of sodium as assembly director, forming ordered three-dimensional structures with increased attraction and decreased inter-dot distance. These structures facilitate exciton delocalization and sustained nanosecond lasing operation with a threshold of 25 mu J cm(-2).
Article
Spectroscopy
Adity Chopra, Anuradha Swami, Rohit Sharma, Neha Devi, Sherry Mittal, Rohit K. Sharma, Nishima Wangoo
Summary: This study presents a fluorescence resonance energy transfer-based assay for the detection of Staphylococcal enterotoxin. The developed method showed high sensitivity and specificity, and was successfully applied for quantification in apple juice.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Yan-Xiang Li, Lei Xu, Shu-Ming Kang, Li Zhou, Na Liu, Zong-Quan Wu
Summary: This study prepared single-handed helical poly(phenyl isocyanide)s bearing pyrene and naphthalene probes, demonstrating interesting self-sorting properties driven by helicity and molecular weight in various states.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Electrical & Electronic
Yuan Ai, Xiaowei Liu, Baoshuo Yang, Qian Li, Sheng Liu
Summary: The synthesis of PbS nanoparticles using DMSA and assembly on a pigeon feather substrate led to a significant increase in material hardness and modulus, demonstrating potential for biological applications. The use of DMSA as a passivator also promoted tunability of the PbS surface from hydrophilic to superhydrophilic.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Tianfu Guan, Wei Chen, Haodong Tang, Dong Li, Xiao Wang, Christian L. Weindl, Yawen Wang, Zhiqiang Liang, Suzhe Liang, Tianxiao Xiao, Suo Tu, Stephan V. Roth, Lin Jiang, Peter Mueller-Buschbaum
Summary: Hybrid plasmonic nanostructures, which combine the properties of plasmonics and quantum dots, have attracted significant attention in the field of optoelectronic devices. This study presents a hybrid structure consisting of self-assembled gold nanospheres embedded in a solid matrix of PbS quantum dots. By analyzing the localization and spacing of the gold nanospheres within the hybrid structure using grazing-incidence small-angle X-ray scattering, the impact of interface charge carrier dynamics on the performance of photodetectors is determined. This research provides insights into the performance improvement of optoelectronic devices from an architectural perspective.
Article
Chemistry, Physical
Kohei Kumagai, Taro Uematsu, Tsukasa Torimoto, Susumu Kuwabata
Summary: The study investigates energy transfer between quantum dots (QDs) in an ensemble by adsorbing them on MOF-5, finding that loading different types of QDs results in a significant increase in PL intensity, while loading the same type of QDs leads to a lower-than-expected increase.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Annamaria Panniello, Mariachiara Trapani, Massimiliano Cordaro, Carlo Nazareno Dibenedetto, Raffaele Tommasi, Chiara Ingrosso, Elisabetta Fanizza, Roberto Grisorio, Elisabetta Collini, Angela Agostiano, Maria Lucia Curri, Maria Angela Castriciano, Marinella Striccoli
Summary: Efficient FRET systems were developed by combining colloidal CdSe quantum dots (QDs) donors and BODIPY acceptors. The optimization of the distance between the organic fluorophore and the QDs through careful system engineering led to effective energy transfer in solution and solid state, with efficiencies reaching 76%. Deposition of QDs and dye as single coordinated units in solid state further increased efficiency by reducing the distance between the fluorophores to 2.2 nm, demonstrating the effectiveness of the coupling strategy.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Jyoti, Jose Munoz, Martin Pumera
Summary: Graphene quantum dot-based microrobots demonstrate potential for optical real-time monitoring of DNA, offering high sensitivity and selectivity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Naoki Kubo, Mitsuaki Yamauchi, Seiya Yamamoto, Sadahiro Masuo
Summary: The study discovered that highly ordered QD arrangements can be formed by introducing pi-conjugated molecules with self-assembly ability into small CdSe QDs. In apolar solvents, large-sized CdSe QDs and azobenzene derivative 1 with an amino group can undergo in-depth coaggregation, forming linearly arranged QD structures.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2021)
Review
Biochemistry & Molecular Biology
Shuang Wang, Xiaolin Xie, Zhi Chen, Ningning Ma, Xue Zhang, Kai Li, Chao Teng, Yonggang Ke, Ye Tian
Summary: The DNA-grafted nanoparticle serves as a programmable atom equivalent for assembling three-dimensional superlattice with novel properties, allowing for the exploration of assembly strategies and mechanisms, as well as future applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemical Research Methods
Divita Mathur, Meghna Thakur, Sebastian A. Diaz, Kimihiro Susumu, Michael H. Stewart, Eunkeu Oh, Scott A. Walper, Igor L. Medintz
Summary: Cell-free synthetic biology is a valuable tool for developing portable biosensors. By using a modular quantum dot-based reporter platform, it is possible to detect multiple analytes simultaneously.
ACS SYNTHETIC BIOLOGY
(2022)
Article
Chemistry, Physical
S. Liu, R. Fan, Y. Zhao, M. Yu, L. Li, Q. Li, B. Liang, W. Zhang
Summary: In this study, a relatively less toxic CISSe quantum dot was prepared by an organic high-temperature hot injection method for use in QD-sensitized solar cells. Through Sn doping and ZnS passivation, the electron collection efficiency was improved and charge recombination was inhibited, resulting in a power conversion efficiency of 6.7% for the QDSSC.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Yuxiang Dong, Jiliang Liu, Xuanzhao Lu, Jialin Duan, Liqi Zhou, Lizhi Dai, Min Ji, Ningning Ma, Yong Wang, Peng Wang, Jun-Jie Zhu, Qianhao Min, Oleg Gang, Ye Tian
Summary: Self-assembly processes are important for fabricating complexly organized nanomaterials, but often limited in creating structures with multiscale order. In this study, a two-stage assembly strategy is introduced to successfully form complexly organized nanoparticle crystals.
