Article
Materials Science, Multidisciplinary
Jiyong Kim, Hyung Seok Choi, Armin Wedel, Suk-Young Yoon, Jung-Ho Jo, Hyun-Min Kim, Chul-Jong Han, Hong-Joo Song, Jeong-Min Yi, Jong-Shik Jang, Hannes Zschiesche, Bum-Joo Lee, Kyoungwon Park, Heesun Yang
Summary: The study explores a method for strain-engineered highly emissive InP:Cu/Zn-Cu-In-S (ZCIS)/ZnS core/shell/shell QDs synthesis via a one-pot approach, achieving the highest-ever PL QYs.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Avijit Saha, Gerasimos Konstantatos
Summary: Low cost, environmentally friendly multinary colloidal quantum dots with bright, narrow-width, tunable near-infrared luminescence are promising alternatives to Cd and Pb chalcogenide QDs. The demonstrated Pb/Cd free solution-processed colloidal luminescent Ag2ZnSnS4-ZnS core-shell QDs show a narrow photoluminescence full width at half maximum (fwhm) in the first NIR window and achieve tunable emission with high PL quantum yield (PLQY).
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Haiyang Li, Wenjing Zhang, Yangyang Bian, Tae Kyu Ahn, Huaibin Shen, Botao Ji
Summary: A new method using inorganic salt ZnF2 instead of hydrofluoric acid to synthesize InP/ZnSe/ZnS core/shell/shell quantum dots is proposed in this study. The resulting quantum dots show higher photoluminescence efficiency and thermal stability, and can achieve high brightness emission in large sizes.
Article
Materials Science, Multidisciplinary
Linyuan Lian, Youyou Li, Daoli Zhang, Jianbing Zhang
Summary: In this study, an economic method using in situ-generated PH3 to synthesize InP QDs and a two-step coating of ZnS shells to prepare highly luminescent InP/ZnS/ZnS QDs are developed. The emission of the QDs can be tuned by adjusting synthetic conditions to prepare yellow emissive QDs, which show high photoluminescence intensity even at high temperatures.
Article
Chemistry, Multidisciplinary
Jiayao Li, Tianyong Guan, Datao Tu, Wei Lian, Peng Zhang, Siyuan Han, Fei Wen, Xueyuan Chen
Summary: Highly efficient luminescent AgInTe2:Zn/ZnS nanocrystals with a maximum NIR-II quantum yield of 25.2% have been designed by manipulating the structure to reduce internal and surface defects. These nanoprobes were used for sensitive homogeneous biodetection of xanthine oxidase with a limit of detection as low as 25 nU L-1.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
A. D. Kurilov, D. N. Chausov, V. V. Osipova, R. N. Kucherov, V. V. Belyaev, Y. G. Galyametdinov
Summary: This work focuses on synthesizing highly luminescent hybrid CdSe/CdS core/shell quantum dots and doping them into a nematic liquid crystal to obtain new composites. The sizes of the quantum dot cores and additional ZnS shells are correlated with the luminescence and dielectric characteristics of the composites.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Bruna Lallo da Silva, Laurent Lemaire, Jean-Pierre Benoit, Fernanda Hediger Borges, Rogeria Rocha Goncalves, Camila Fernanda Amantino, Fernando Lucas Primo, Leila Aparecida Chiavacci
Summary: The study focuses on the conjugation of Gd3+/ZnO with GCIS/ZnS Qdots to create a novel ZnOGd-GCIS/ZnS nanomaterial with excellent luminescence and MRI properties, showcasing potential as contrast agents. Structural and spectral analyses confirm the efficacy of the new quantum dots in MRI applications.
Article
Chemistry, Analytical
Yunting Qu, Danni Li, Jinrui Liu, Fangkai Du, Xuecai Tan, Yuzhu Zhou, Shaogang Liu, Weihua Xu
Summary: In this study, near-infrared carbon dots were synthesized from Magnolia denudata leaves using an eco-friendly approach. The synthesized carbon dots were modified and used as a fluorescent nanoprobe for detecting palladium ion, showing high selectivity, excellent water solubility, and stability. This nanoprobe demonstrated low toxicity and could be utilized for monitoring palladium ion in real water samples and Li-7 cells.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Lianju Wang, Yiqing Chen, Yueling Lai, Xianglong Zhao, Kanghui Zheng, Ruilin Wang, Yufeng Zhou
Summary: Semi-transparent large-area luminescent solar concentrators (LSCs) are considered crucial for future zero-energy or low-energy buildings. Inorganic colloidal quantum dots (QDs) show promise as LSCs due to their tunable bandgap, large Stoke shift, and high photoluminescence (PL) quantum yield. However, long-term stability remains a challenge. This study successfully fabricates large-area tandem LSCs using highly stable carbon dots (CDs) and highly luminescent CuInSeS/ZnS QDs, demonstrating high efficiency and stability for potential building-integrated photovoltaic (BIPV) devices.
Article
Chemistry, Multidisciplinary
Xue Bai, Finn Purcell-Milton, Yurii K. Gun'ko
Summary: Cu-Based quantum dots are being explored as a potential replacement for toxic Cd- or Pb-based QDs, with studies focusing on the impact of different reaction conditions on the resulting morphologies and optical properties. By carefully controlling the ZnS shell deposition, researchers have optimized the synthesis of CIZS/ZnS/ZnS QDs and produced highly fluorescent core/shell/shell heterostructured QDs with high PLQYs. Additionally, the successful creation of giant ZnS shell QDs opens up possibilities for further development in this area.
Article
Chemistry, Physical
Hae Mee Ju, Doheon Yoo, Min -Jae Choi
Summary: This study introduces a ligand-induced surface reconstruction strategy to significantly improve the photoluminescence quantum yield (PLQY) of silver sulfide quantum dots (Ag2S CQDs), enhancing their potential for bio-imaging applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Food Science & Technology
Zeyu Xu, Yizhong Wang, Jiaran Zhang, Ce Shi, Xinting Yang
Summary: The detection of trace amounts of Cu2+ in water using MPA-InP/ZnS QDs probes shows excellent sensitivity and selectivity, with a low limit of detection of 0.22 nM. The proposed fluorescence-quenching mechanism is applied successfully to real water samples and drink samples.
Article
Chemistry, Applied
Jiahou Geng, Juan Zheng, Wenjun Bai, Hui Yang, Yang Lu, Ning Wang, Yufen Zhao, Jinhui Wang
Summary: A near-infrared fluorescence probe PTP was developed to visualize the distribution of nitroreductase (NTR) in tumor cells, demonstrating a fast response and excellent biocompatibility.
Article
Engineering, Environmental
Li Zhu, Yixia Liu, Xiaofei Wang, Kai Zhang, Jing-Wen Tai, Yan-Qiu Sun, Chuan-Kui Wang, Lei Ding, Man-Keung Fung, Jian Fan
Summary: In this study, highly efficient deep red/near-infrared (DR/NIR) TADF emitters were developed using a polycyclic and π-extended thienoacene (TA) as the building block. These TADF OLEDs exhibited high electroluminescence efficiency, indicating a promising path for the development of efficient DR/NIR light-emitting devices.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Venkatachalam Vijayaraj, Ganapathy Sasikala, Nanthagopal Manivannan, Narayanasamy Mathivanan, P. Karuppasamy, M. Senthil Pandian, P. Ramasamy
Summary: Water-soluble CdTe colloidal QDs with different emissions were synthesized using 3-MPA as a stabilizing agent and varying growth times. The red-shift in absorption and emission spectra indicated an increase in particle size. XRD and FTIR analysis confirmed the crystal structure and surface capping effect of the QDs. HRTEM and EDX analysis provided insights into the morphology and elemental composition of the QDs. The green emitting CdTe QDs showed excellent luminance and were found to be efficient fluorescent probes for fluorescence imaging of onion epidermal cells.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Kyeong Rak Kim, Jeonga Kim, Jin Woong Kim, Cafer T. Yavuz, Moon Young Yang, Yoon Sung Nam
Summary: This study introduces a new photochemical route for the selective and efficient adsorption of gold ions using bio-inspired metal-philic coatings. The polydopamine layer on the mesoporous polymer microspheres serves as a selective photo-active reductant to reduce gold ions to metallic gold nuclei, with localized surface plasmon further enhancing the reduction process. The combination of photochemical activation and polyphenol chemistry dramatically increases the maximum adsorption capacity and selectivity for gold ions, showing promise for urban mining of novel metal ions from electronic wastes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Bon Il Koo, Inhye Kim, Moon Young Yang, Sung Duk Jo, Kunmo Koo, Seo Yeon Shin, Kyung Mok Park, Jong Min Yuk, Eunji Lee, Yoon Sung Nam
Summary: Researchers have developed a method to efficiently incorporate proteins into multilamellar protein-lipid hybrid vesicles using protein-induced reorganization of 'pre-formed' unilamellar lipid vesicles, without the need for chemical modification. This approach improves the structural, chemical, and biological stability of the loaded proteins without the use of specialized instruments, high energy, coupling agents, or organic solvents, providing a promising strategy for protein encapsulation.
JOURNAL OF CONTROLLED RELEASE
(2021)
Article
Chemistry, Multidisciplinary
Bon Il Koo, Jae Woong Choi, Seuk Young Song, Ye Hun Choi, Tae Yong Lee, Shin-Hyun Kim, Ki Jun Jeong, Yoon Sung Nam
Summary: Genetically engineered Corynebacterium glutamicum is introduced as a robust cell display platform for the in situ stabilization and low-cost production of carbonic anhydrase (CA). The cell-displayed CA shows high stability at high temperature and provides a promising technique for achieving highly efficient, sustainable, and low-cost CO2 capture for industrial applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Insu Kim, Nyeongbeen Jo, Yujin Gu, Yoon Sung Nam
Summary: The introduction of an interstitial polydopamine (PDA) layer enhances the Co-OEC/electrode interface for sustainable catalytic activity. The PDA layer efficiently stabilizes the catalyst/electrode interface under high applied potential conditions, maintaining oxygen evolving catalytic activity above 70%.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Biophysics
Cheol Am Hong, Jae Chul Park, Hyebin Na, Huiju Jeon, Yoon Sung Nam
Summary: This study introduces a new DNA assay platform that utilizes short target DNA to catalyze the formation of a hydrogel, achieving fast, high sensitivity, and high specificity detection without the need for enzyme-based DNA amplification. The method allows rapid detection of single-base mismatches within 1 hour, and shows potential clinical applicability for key genes of drug-resistant pathogenic bacteria.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Engineering, Biomedical
Bon Il Koo, Seon-Mi Jin, Hayeon Kim, Dong Jae Lee, Eunji Lee, Yoon Sung Nam
Summary: The study introduced robust conjugation-free multilamellar protein antigen-lipid hybrid nanovesicles (MPLVs) for efficient antigen-specific immune responses, increasing immunological surface markers and cytokines in dendritic cells. Vaccination with MPLVs significantly enhanced anti-antigen antibody and interferon-gamma production by activating CD4(+) and CD8(+) T cells, suggesting MPLVs as a promising nanovaccine delivery platform for efficient antigen cross-presentation.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Materials Science, Biomaterials
Trang Huyen Le-Kim, Bon Il Koo, Sung Duk Jo, Nai-Wen Liang, Moon Young Yang, In Cho, Jae Byum Chang, Tzu-Wei Wang, Yoon Sung Nam
Summary: The study demonstrated the construction of artificial taste buds with active intercellular taste signal transmission using bioorthogonal click chemistry, allowing effective communication between taste cells and neurons. The research showed that surface modification of cells through bioorthogonal click chemistry can create multicellular hybrid clusters with potential applications in cell-based biosensors, toxicity assays, and tissue regeneration.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2021)
Article
Engineering, Environmental
Saehan Choi, Jeonga Kim, Rafia Tasnim Rahman, Dong Jae Lee, Kimoon Lee, Yoon Sung Nam
Summary: This study presents plastic-free silica-titania-tannin hybrids that enhance the blocking effects of UV-to-blue light while suppressing the generation of reactive oxygen species (ROS). The results demonstrate the promising application of these hybrids in protecting the skin from UV and blue light-induced damage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Chang Woo Song, Dae-Hyeon Song, Dong Gyu Kang, Ki Hyun Park, Chan E. Park, Hyunwoo Kim, Yongsuk Hur, Sung Duk Jo, Yoon Sung Nam, Jihyeon Yeom, Seung Min Han, Jae-Byum Chang
Summary: This study introduces a method for synthesizing metallic structures resembling specific protein assemblies in mammalian cells and tissues, enabling the growth of metal particles. Utilizing nanogold-conjugated antibodies to label specific proteins within cells and tissues, nanogold acts as nucleation sites for metal particle growth. The new biotemplating approach converts specific protein structures into metallic forms in ex vivo multicellular organisms, demonstrating potential applications in catalysis and structural replication.
ADVANCED MATERIALS
(2022)
Article
Biophysics
Shinyoung Choi, Yoon Sung Nam
Summary: This study reports a novel DNA nanoprobe based on plasmon-enhanced fluorescence and quenching effects, which enables rapid, sensitive, and reliable detection of pathogenic DNA.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Engineering, Biomedical
Jae Chul Park, Hyebin Na, Saehan Choi, Huiju Jeon, Yoon Sung Nam
Summary: A simple method for miRNA assay is presented, which is based on the one-pot self-assembly of Y-shaped DNAs with streptavidin via an miRNA-catalyzed TMSD cascade reaction. This method incorporates a single base-pair mismatch to facilitate RNA-triggered strand displacement while minimally disturbing nonspecific reactions. The detection limit is significantly reduced from the nanomolar level to the picomolar level.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Materials Science, Biomaterials
Kyounghee Shin, Kun Bong Lee, Jee-Hyun Hwang, Boryeong Lee, Hyunsun Ryu, Minjoo Noh, Jun Bae Lee, Yoon Sung Nam, Kyung-Min Lim, Jin Woong Kim
Summary: This study presents a microvehicle platform with a multilamellar ceramide core structure for effective recovery of the skin barrier function. The researchers used bacterial cellulose nanofiber (BCNF) to encapsulate ceramide-rich lipid microparticles (CerMPs), forming BCNF-armored oil-in-water Pickering emulsions. The CerMP cores had a multilamellar structure that could be adjusted by using fatty alcohols (FAs) with different alkyl chain lengths. The CerMPs reduced trans-epidermal water loss and restored the structural integrity of damaged skin. The findings demonstrate that the CerMP system offers a practical approach for developing skin-friendly formulations that strengthen the skin barrier function.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Biochemistry & Molecular Biology
Bon Il Koo, Rafia Tasnim Rahman, Jihui Jang, Dong Jae Lee, Jun Bae Lee, Yoon Sung Nam
Summary: This study presents a technique for the fabrication of structurally robust lipid nanovesicles through self-assembly of preformed cationic large unilamellar vesicles (LUVs) with hydrolyzed collagen peptides (HCPs). The resulting multilamellar collagen-lipid vesicles (MCLVs) show excellent structural stability against variations in pH, ionic strength, and the addition of surfactants, as well as repeated freeze-thaw stresses. This technique provides a simple and quick method for the production of stable lipid nanovesicles without the use of covalent crosslinkers, organic solvents, and specialized instruments.
Article
Nanoscience & Nanotechnology
Nyeongbeen Jo, Insu Kim, Yoon Sung Nam
Summary: Natural photosynthesis provides attractive models for various applications in photovoltaics and solar fuel production, but poor interfacial electron transfer limits the performance of photoelectrodes. This study presents efficient bias-free biophotovoltaics based on dual heterostructure photoelectrodes. The photocathode and photoanode were prepared using PSI-protonated carbon nitride nanosheet complexes and PSII-TiO2 nanoparticle films, resulting in high photocurrent density and cell power. This work demonstrates a simple self-assembly method for constructing efficient nanobio complex photoelectrodes for enhanced interfacial electron transfer.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Biomaterials
Jihyo Kil, Rafia Tasnim Rahman, Wenxuan Wang, Saehan Choi, Yoon Sung Nam, Sheng Li
Summary: Polymer coatings containing fouling-resistant and fouling-release components show synergistic antifouling properties. The composition of the polymer influences the antifouling performance against different biofoulants. The best-performing copolymer shows surface heterogeneity with a PEG-rich top layer and a PEG/PDMS mixed bottom layer, resisting biofoulant attachment.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
