Article
Chemistry, Physical
Andrei Mitrofanov, Anatol Prudnikau, Francesco Di Stasio, Nelli Weiss, Rene Huebner, Anna Maria Dominic, Konstantin B. L. Borchert, Vladimir Lesnyak, Alexander Eychmueller
Summary: This study successfully synthesized core/shell NPLs containing 0D CdxHg1-xSe domains in CdSe NPLs, and coated them with a CdyZn1-yS shell while preserving their 2D morphology. The NPLs exhibit bright photoluminescence in the near-infrared range with high quantum yields, making them a promising material for light-emitting applications.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Xinyuan Li, Mengyao Su, Yi-Chi Wang, Meng Xu, Minman Tong, Sarah J. Haigh, Jiatao Zhang
Summary: This study developed an efficient strategy to synthesize telluride core-shell colloidal semiconductor nanoparticles (CSNPs) with thin amorphous shells using aqueous cation exchange (ACE). The crystallinity and shell thickness of the CSNPs could be controlled by changing the synthesis temperature. The CSNPs synthesized at 60 degrees C exhibited the highest surface-enhanced Raman scattering activity.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yupeng Liu, Josh Haipeng Lei, Gang Wang, Zhiming Zhang, Jun Wu, Bohan Zhang, Huiqi Zhang, Enshan Liu, Liming Wang, Tzu-Ming Liu, Guichuan Xing, Defang Ouyang, Chu-Xia Deng, Zikang Tang, Songnan Qu
Summary: This study successfully fabricated carbon dots (CDs) with dominant near-infrared (NIR) absorption/emission peaks in aqueous solution and enhanced their photoluminescence quantum yields (PLQY) through surface engineering. Compared to commercial NIR dyes, these modified CDs exhibit improved photostability and lower cost, and they also demonstrate advantages in in vivo bioimaging.
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, Physical
Kai Yu, Huagui Zhang, Zhentao Wang, Wei Zhang, Haojie Xu, Yanyan Chen, Hongshen Li, Bin Li, Junfeng Wang
Summary: This study investigated the relationship between the shell-to-core ratio (k) and modulating interactions of core-shell composite particles (CPs) at the air-aqueous interface. CPs were prepared by physically adsorbing poly(vinylpyrrolidone) (PVP) onto the surface of silica nanoparticles (NPs). The results showed that the k value increased with higher PVP adsorption density and molecular weight. Thicker PVP shells induced a stronger steric barrier, leading to more complex and non-hexagonal phases in the microstructure of the CPs-laden interface. The enhanced steric repulsion between the polymer shells played a significant role in building up surface pressure and facilitating CPs rearrangement under compression and shear.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
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
Bastian Haehnle, Philipp A. Schuster, Lisa Chen, Alexander J. C. Kuehne
Summary: A synthetic toolbox has been developed to create monodisperse core-shell and core-shell-shell particles composed entirely of different types of conjugated polymers. Seeded and fed-batch dispersion polymerizations based on Suzuki-Miyaura-type cross-coupling allow precise control over the interface between conjugated polymer phases, facilitating control over energy transfer phenomena. This new approach offers synthetic freedom for fine-tuning the optical properties of CPP, potentially enabling the synthesis of individual white light-emitting particles.
Correction
Chemistry, Physical
Shichuan Zhong, Changchang Xing, An Cao, Tao Zhang, Xuejiao Li, Jie Yu, Weiping Cai, Yue Li
Summary: The study discusses a rapid synthesis method for water-soluble MoO3-x quantum dots with controlled oxygen vacancies for detecting H2O2.
NANOSCALE HORIZONS
(2021)
Article
Chemistry, Physical
Irshad Ahmad Mir, Sachin Kumar, Masroor Ahmad Bhat, Xie Yuelin, Aijaz Ahmad Wani, Ling Zhu
Summary: The study utilized CuInS2@ZnS core-shell quantum dots as luminescence probes for the detection of bioanalytes and heavy metals. The QDs were found to be selectively sensitive to cholesterol, citric acid, Cu2+ and Hg2+ ions with satisfactory detection limits at nanomolar levels.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Minji Son, Suhyeon Kim, Younki Lee, Jiwon Bang
Summary: Near infrared-emitting type-II In(Zn)P/ZnTe (core/shell) quantum dots have been developed with tunable emission range by adjusting core diameter and shell thickness. These heavy-metal-free, water-soluble quantum dots show potential for widespread applications in biomedicine and energy fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Salima Mabrouk, Herve Rinnert, Lavinia Balan, Jordane Jasniewski, Sebastien Blanchard, Ghouti Medjahdi, Rafik Ben Chaabane, Raphael Schneider
Summary: In this study, 3-mercaptopropionic acid (3-MPA)-capped core/shell/shell ZnSeS/Cu:ZnS/ZnS QDs were synthesized in aqueous phase. The influence of Cu dopant location and loading on the photoluminescence properties of the QDs was investigated. The results showed that introducing Cu dopant in the first ZnS shell led to QDs with the highest PL quantum yield. Additionally, the emission color shifted from blue-green to green with increased Cu doping.
Article
Chemistry, Multidisciplinary
Yuan Jiang, Haibao Shao, Hangning Xu, Jiahao Yang, Yi Wang, Haonan Xiong, Pengyao Wang, Xilin Wang
Summary: An ultrafast and facile aqueous synthetic approach for CdTe/CdS core/shell quantum dots with emission from the green to near-infrared window has been reported. The CdTe/CdS QDs with emission wavelengths at 700 and 800 nm can be obtained within 20-45 minutes under optimized conditions, and the resulting QDs are highly luminescent without postsynthesis treatment. The influences of various experimental factors on the synthesis rate and luminescent properties of the CdTe/CdS QDs have been considered.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hye-Youn Jung, Boram Kim, Min Ho Jeon, Yoonkyung Kim
Summary: Fluorescence imaging is an indispensable tool in modern biological research, but it is limited by autofluorescence, light scattering, and limited penetration depth of light in living systems. This study prepares a water-soluble and safe fluorescence photoswitch for near-infrared imaging in living systems.
Article
Chemistry, Physical
Byeong Guk Jeong, Jun Hyuk Chang, Donghyo Hahm, Seunghyun Rhee, Myeongjin Park, Sooho Lee, Youngdu Kim, Doyoon Shin, Jeong Woo Park, Changhee Lee, Doh C. Lee, Kyoungwon Park, Euyheon Hwang, Wan Ki Bae
Summary: This study presents an approach to control the potential profile of III-V-II-VI h-NCs by steering dipole densities at the interface, allowing for control of the optical and electrical characteristics of these heterostructured nanocrystals. The synthesis of h-NCs with atomic precision enables correlation of interfacial dipole moments with the crystals' photochemical stability and optoelectronic performance. Controlled synthesis of heterostructured III-V-II-VI nanocrystals demonstrates that dipole moments formed at the core-shell interface can tune the optoelectronic properties of these nanomaterials and their performance in light-emitting devices.
Article
Chemistry, Analytical
Jing Yang, Hao Liu, Yan Huang, Li Li, Xiaoli Zhu, Yaping Ding
Summary: In this paper, near-infrared carbon quantum dots (NIR-CQDs) were prepared and applied for fluorescence sensing of cortisol. NIR-CQDs-Apt can adsorb on the surface of graphene oxide (GO) and exhibit an inner filter effect (IFE). The presence of cortisol disrupts the IFE process, resulting in the recovery of NIR-CQDs-Apt fluorescence. This sensor shows excellent selectivity and a low detection limit, making it suitable for intracellular cortisol detection.
Article
Chemistry, Multidisciplinary
Zhenggao Xiao, Ningke Fan, Wenqing Zhu, Hai-Long Qian, Xiu-Ping Yan, Zhenyu Wang, Sergio Rasmann
Summary: The application of nanosilicon has been found to enhance plant defenses against various stresses. Silicon quantum nanodots, with their unique biological and physiochemical properties, show promise in regulating plant responses to stress. By studying maize, it was observed that the addition of Si NDs and sodium silicate effectively inhibited the growth of caterpillars and activated defense genes. Field experiments also demonstrated the potential of Si NDs in increasing maize yield. These findings suggest that Si NDs can be an effective and ecofriendly crop protection strategy in agroecosystems.
Article
Materials Science, Composites
Dan Wang, Yidong Peng, Jiancheng Dong, Lei Pu, Kangqi Chang, Xiu-Ping Yan, Le Li, Yunpeng Huang, Tianxi Liu
Summary: In this study, polyimide aerogel fibers were fabricated using an in-situ polymerization method and wet-spinning technique with Ti3C2Tx flakes as pore-generating agents. These aerogel fibers showed enhanced mechanical properties, large specific surface area, excellent flame resistance, and remarkable thermal insulation performance. They can be woven into flexible textiles for practical thermal regulating applications.
COMPOSITES COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Li-Ya Wang, Li-Jian Chen, Xu Zhao, Yan Lv, Tianxi Liu, Xiu-Ping Yan
Summary: The researchers report an activatable antimicrobial nanoplatform with ultralow-background persistent luminescent (PL) turn-on imaging and therapeutic capability. The platform utilizes chitosan as a linker to immobilize copper ions on the surface of persistent luminescent nanoparticles (PLNPs) to fabricate PLNPs-CS-Cu2+. The PL emission of PLNPs is quenched by Cu2+ under physiological conditions but recovered due to the conversion of Cu2+ into Cu+ by high glutathione (GSH) levels at the infection site. The as-prepared antibacterial nanoplatform shows promise for highly sensitive persistent luminescent imaging and simultaneous treatment of bacterial infection.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Jingxiao Chen, Yufeng Wang, Le Li, Yue-E Miao, Xu Zhao, Xiu-Ping Yan, Chao Zhang, Wei Feng, Tianxi Liu
Summary: In this study, an ultrastretchable fluorinated ionogel with high transparency and waterproofness is prepared. The ionogel exhibits stable cross-linking structures, high mechanical elasticity, and self-healing capabilities. It also demonstrates excellent stretchability, mechanical toughness, and underwater strain-sensing performances. This work provides a method for obtaining waterproof ionogel elastomers for next-generation underwater sensors and communications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Kangqi Chang, Zhenzhong Wu, Jian Meng, Minhao Guo, Xiu-Ping Yan, Hai-Long Qian, Piming Ma, Jianhua Zhao, Fangneng Wang, Yunpeng Huang, Tianxi Liu
Summary: Inspired by the nanotopography of cicada wings, a highly sensitive tactile sensor was fabricated by nanotexturing polyaniline nanoneedles on a conductive and elastic carbon skeleton. The sensor exhibited ultrahigh sensitivity, fast response/recovery abilities, and reproducible sensing performance, making it capable of distinguishing motions in a wide pressure range, detecting spatial pressure distribution, and monitoring various gestures in a wireless manner. These excellent performances demonstrate the great potential of nature-inspired tactile sensors for practical human motion monitoring and artificial intelligence applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Applied
Jiang-Yue Wang, Li-Jian Chen, Xu Zhao, Xiu-Ping Yan
Summary: A pH-responsive colorimetric microneedle (MN) patch made from bromothymol blue (BTB) and silk fibroin meth acryloyl (SilMA) was developed for sensing salmon spoilage. The MN patch could extract tissue fluids from salmon and display color changes based on the pH variation caused by the increase of total volatile basic nitrogen. This method allows rapid determination of salmon spoilage and can be analyzed nondestructively on a smartphone.
Article
Biochemistry & Molecular Biology
Pengwu Xu, Gaopeng Qi, Dongxuan Lv, Deyu Niu, Weijun Yang, Huiyu Bai, Xiuping Yan, Xu Zhao, Piming Ma
Summary: In this study, an in situ polymerization method was employed to intercalate P-N-containing hyperbranched macromolecules (HBM) among BNT layers (HBM-B) to improve the flame retardancy and mechanical properties of PHA. The LOI of the PHA/HBM-B composite reached 27.6% when the mass ratio of HBM to BNT was 75/25. When the content of HBM-B reached 15 wt%, the LOI of PHA-Based composites reached 29.6% and achieved a UL-94 rating of V-0, meeting the standard of flame-retardant material.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Shuyan Wu, Shichao Cai, Fengyang Qin, Feng He, Tianxi Liu, Xiuping Yan, Zhenyu Wang
Summary: Ball milling is effective in activating and reducing the size of microscale zero valent iron (mZVI) and sulfidating mZVI mechanochemically. However, there are differences in the interaction between chlorinated ethenes (CEs) and ball milled mZVI (mZVIbm) and mechanochemically sulfidated mZVI (S-mZVIbm) that are not well understood. This study found that simple ball milling exposed active Fe0 sites, while mechanochemical sulfidation decreased Fe0 sites and increased S2 sites. The sulfidation process enhanced the reactivity of TCE dechlorination the most, followed by PCE and 1,1-DCE, but reduced the reactivity of trans-DCE, cis-DCE, and VC compared to simple ball milling. Sulfidation also improved the electron efficiency of CE dechlorination, except for cis-DCE and VC. The kSA of cis-DCE, VC, and trans-DCE dechlorination positively correlated with the sulfide content.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Tian-Tian Ma, Cheng Yang, Hai-Long Qian, Piming Ma, Tianxi Liu, Xiu-Ping Yan
Summary: The development of novel functional materials for the effective separation of isomers is important in various fields. The fabrication of a trifluoromethyl-functionalized 2D COF, TpTFMB, was reported for isomer separation. TpTFMB exhibited various functions such as hydrogen bonding, dipole interaction, and steric effect, enabling the high-resolution separation of different types of isomers. This work provides a new strategy for designing efficient isomer separation materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Manufacturing
Minhao Guo, Yufan Zhang, Chun Huang, Xu Zhao, Xiu-Ping Yan, Yunpeng Huang, Le Li, Tianxi Liu
Summary: This study successfully developed a novel shape memory polyimide aerogel composite with a high programming temperature and excellent shape recovery capability. By regulating molecular interactions and pore structures, the desired thermo-mechanical performances were achieved, showing great potential for widespread applications in harsh environments.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Chemistry, Analytical
Xue-Mei Gao, Tian-Yue Gu, Ke-Lin Chen, Xu Zhao, Xiu-Ping Yan
Summary: In this study, an intelligent luminescence ratiometric sensor based on ultra-small dual-emissive PLNP is reported for precise tumor-targeted imaging. The PLNP-Mal@Cy5.5 sensor can achieve long-term retention and specificity imaging by detecting the change of I-708/I-501.
ANALYSIS & SENSING
(2023)
Article
Materials Science, Biomaterials
Xuan Fu, Xu Zhao, Li-Jian Chen, Piming Ma, Tianxi Liu, Xiu-Ping Yan
Summary: Coating mesoporous drug carriers on the surface of persistent luminescence nanoparticles (PLNPs) enables continuous luminous imaging and drug release guidance. However, this encapsulation often reduces the luminescence of PLNPs, and conventional drug-loaded shells have difficulties in achieving responsive fast drug release. In this study, mesoporous polyacrylic acid (PAA)/calcium phosphate (CaP) shell-coated PLNPs (PLNPs@PAA/CaP) were fabricated to improve afterglow bioimaging and drug delivery. The PAA/CaP shell effectively prolongs the luminescence of PLNPs and enables efficient drug delivery. Under acidic conditions, PAA/CaP shells degrade and release drugs rapidly for effective bacterial killing. The prepared PLNPs@PAA/CaP show great potential for diagnostic and therapeutic applications.
BIOMATERIALS SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Kangqi Chang, Zhenzhong Wu, Jian Meng, Minhao Guo, Xiu-Ping Yan, Hai-Long Qian, Piming Ma, Jianhua Zhao, Fangneng Wang, Yunpeng Huang, Tianxi Liu
Summary: We propose a simple strategy to fabricate a highly sensitive tactile sensor by nanotexturing erected polyaniline (PANI) nanoneedles on a conductive and elastic three-dimensional (3D) carbon skeleton. The developed sensor exhibits ultrahigh sensitivity, fast response/recovery abilities, and reproducible sensing performance, making it capable of distinguishing motions, detecting spatial pressure distribution, and monitoring various gestures wirelessly.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Wen-Chao Deng, Hai-Long Qian, Cheng Yang, Shu-Ting Xu, Xiu-Ping Yan
Summary: Covalent organic frameworks (COFs) are promising as stationary phases for gas chromatography (GC). In this study, a two-step method was developed to fabricate COF-bound capillary columns with high uniformity and crystallinity. The fabricated Tab-DHTA-bound capillary column showed better separation performance for isomers compared to commercial columns DB-5 and HP-FFAP.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Biomaterials
Jing-Xuan Guo, Xue-Mei Gao, Tian-Yue Gu, Hao-Ze Li, Li-Jian Chen, Xu Zhao, Xiu-Ping Yan
Summary: A porphyrin-anthracene covalent organic framework (Por-DPA) was fabricated for sustainable photosterilization and bacterial-infected wound healing. Por-DPA exhibited good photothermal conversion performance and efficient 1O2 production capacity, preventing self-aggregation quenching and thermal damage, and promoting wound healing without obvious side effects.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
