ORCID Profile
0000-0001-8340-4868
Current Organisation
Nanjing Medical University
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Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9CP04544A
Abstract: Machine learning techniques can predict the solution temperature of thermosensitive polymer-capped nanoparticle solutions to within 1 °C of accuracy.
Publisher: American Chemical Society (ACS)
Date: 09-12-2021
Publisher: Elsevier BV
Date: 11-2021
Publisher: Wiley
Date: 20-02-2015
Abstract: A ferrocene-based dithiol 1,1'-[fc(C{O}OCH2CH2SH)2] has been prepared and treated with a Ag(I) salt to form the stable dithiolate compound [fc(C{O}OCH2CH2SAg)2]n (fc=[Fe(η(5)-C5H4)2]). This is used as a reagent for the preparation of the nanocluster [Ag74S19(dppp)6(fc(C{O}OCH2CH2S)2)18] which was obtained in good yield (dppp=1,3-bis(diphenylphosphino)propane).
Publisher: American Chemical Society (ACS)
Date: 11-08-2022
Abstract: Nitric oxide (NO)-releasing nanoparticles are effective nanomedicines with erse therapeutic advantages compared with small molecule-based NO donors. Here, we report a new class of furoxan-based NO-releasing nanoparticles using a simple, creative yet facile coassembly approach. This is the first time we demonstrated that the coassembled NO-releasing nanoparticles with poly(ethylene glycol)
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1NR08343K
Abstract: Poly( N -isopropylacrylamide) (PNIPAM) has been used to modify chiral plasmonic nanoparticles. The thermoresponsive studies reveal the impact of achiral dielectric nanoenvironment on chiral plasmonic responses.
Publisher: Wiley
Date: 14-05-2018
Abstract: The electronic, optical, thermal, and magnetic properties of an extrinsic bulk semiconductor can be finely tuned by adjusting its dopant concentration. Here, it is demonstrated that such a doping concept can be extended to plasmonic nanomaterials. Using two-dimensional (2D) assemblies of Au@Ag and Au nanocubes (NCs) as a model system, detailed experimental and theoretical studies are carried out, which reveal collective semiconductor n -doping-like plasmonic properties. A threshold doping concentration of Au@Ag NCs is observed, below which p-doping dominates and above which n-doping prevails. Furthermore, Au@Ag NC dopants can be converted into corresponding Au seed "voids" dopants by selectively removing Ag without changing the overall structural integrity. The results show that the plasmonic doping concept may serve as a general design principle guiding synthesis and assembly of plasmonic metamaterials for programmable optoelectronic devices.
Publisher: American Chemical Society (ACS)
Date: 06-04-2020
Publisher: American Chemical Society (ACS)
Date: 28-02-2019
Abstract: We have recently demonstrated that Enokitake mushroom-like gold with nanoparticles as the "head" and nanowires as the "tail" could grow directly on elastomeric substrates, which are extremely stretchable electrodes that can be used as wearable sensors for detecting strain and pressure. In this work, we show that such electrodes can also be used as intrinsically stretchable glucose biosensors. By modifying the vertical gold nanowire electrodes with glucose oxidase and Prussian blue nanoparticles, a limit of detection of 10 μM, sensitivity of 23.72 μA·mM
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0NH00393J
Abstract: A plasmonic skin has been demonstrated with an elastomer-supported, highly ordered, and closely packed plasmonic nanocrystal array (plasmene).
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0PY00461H
Abstract: The first room temperature synthesis of diblock copolymer nano-objects with different morphologies using ultrasound (990 kHz) initiated reversible addition-fragmentation chain transfer PISA (sono-RAFT-PISA) in aqueous system.
Publisher: Wiley
Date: 14-12-2022
Abstract: Tissues, which consist of groups of closely packed cell arrays, are essentially sheet‐like biosynthesis plants. In tissues, in idual cells are discrete microreactors working under highly viscous and confined environments. Herein, soft polystyrene‐encased nanoframe (PEN) reactor arrays, as analogous nanoscale “sheet‐like chemosynthesis plants”, for the controlled synthesis of novel nanocrystals, are reported. Although the soft polystyrene (PS) is only 3 nm thick, it is elastic, robust, and permeable to aqueous solutes, while significantly slowing down their diffusion. PEN‐associated palladium (Pd) crystallization follows a diffusion‐controlled zero‐order kinetics rather than a reaction‐controlled first‐order kinetics in bulk solution. Each in idual PEN reactor has a volume in the zeptoliter range, which offers a unique confined environment, enabling a directional inward crystallization, in contrast to the conventional outward nucleation/growth that occurs in an unconfined bulk solution. This strategy makes it possible to generate a set of mono‐, bi‐, and trimetallic, and even semiconductor nanocrystals with tunable interior structures, which are difficult to achieve with normal systems based on bulk solutions.
Publisher: Wiley
Date: 09-05-2019
Abstract: 2D freestanding nanocrystal superlattices represent a new class of advanced metamaterials in that they can integrate mechanical flexibility with novel optical, electrical, plasmonic, and magnetic properties into one multifunctional system. The freestanding 2D superlattices reported to date are typically constructed from symmetrical constituent building blocks, which have identical structural and functional properties on both sides. Here, a general ligand symmetry-breaking strategy is reported to grow 2D Janus gold nanocrystal superlattice sheets with nanocube morphology on one side yet with nanostar on the opposite side. Such asymmetric metallic structures lead to distinct wetting and optical properties as well as surface-enhanced Raman scattering (SERS) effects. In particular, the SERS enhancement of the nanocube side is about 20-fold of that of the nanostar side, likely due to the combined "hot spot + lightening-rod" effects. This is nearly 700-fold of SERS enhancement as compared with the symmetric nanocube superlattices without Janus structures.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8NH00431E
Abstract: Three distinct site-specific Ag-coated Au nanoarrows are achieved by simply controlling the CTAC concentration of growth solution and analyzed with electron microscopy as well as elemental mapping. The CTAC concentration-dependent, facet-specific passivation represents a new strategy to design particle morphology as well as composition.
Publisher: American Chemical Society (ACS)
Date: 18-02-2020
Publisher: Wiley
Date: 28-11-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1PY00257K
Abstract: The proper design and selection of RAFT agents allow the preparation of eutectic gallium–indium (EGaIn) based liquid metal nanoparticles with grafted polymers.
Publisher: American Chemical Society (ACS)
Date: 30-05-2019
Abstract: Thiol-polystyrene (SH-PS)-capped plasmonic nanoparticles can be fabricated into free-standing, one-nanoparticle-thick superlattice sheets (termed plasmene) based on physical entanglement between ligands, which, however, suffer from irreversible dissociation in organic solvents. To address this issue, we introduce coumarin-based photo-cross-linkable moieties to the SH-PS ligands to stabilize gold nanoparticles. Once cross-linked, the obtained plasmene nanosheets consisting of chemically locked nanoparticles can well maintain structural integrity in organic solvents. Particularly, arising from ligand-swelling-induced enlargement of the interparticle spacing, these plasmene nanosheets show significant optical responses to various solvents in a specific as well as reversible manner, which may offer an excellent material for solvent sensing and dynamic plasmonic display.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TC04051B
Abstract: Under aggregation-free conditions, linear relationships between longitudinal plasmonic peak intensity and temperature have been revealed for poly( N -isopropylacrylamide)-capped gold nanorods and nanobipyramids.
Publisher: American Chemical Society (ACS)
Date: 11-10-2018
DOI: 10.1021/ACS.ANALCHEM.8B03423
Abstract: Conventional electrodes produced from gold or glassy carbon are outstanding electrochemical platforms for biosensing applications due to their chemical inertness and wide electrochemical window, but are intrinsically rigid and planar in nature. Hence, it is challenging to seamlessly integrate them with soft and curvilinear biological tissues for real-time wearable or implantable electronics. In this work, we demonstrate that vertically gold nanowires (v-AuNWs) possess an enokitake-like structure, with the nanoparticle (head) on one side and nanowires (tail) on the opposite side of the structure, and can serve as intrinsically stretchable, electrochemical electrodes due to the stronger nanowire-elastomer bonding forces preventing from interfacial delamination under strains. The exposed head side of the electrode comprising v-AuNWs can achieve a detection limit for H
Publisher: Wiley
Date: 09-2019
Publisher: Wiley
Date: 25-08-2019
Abstract: Sensitive, specific, yet multifunctional tattoo-like electronics are ideal wearable systems for "any time, any where" health monitoring because they can virtually become parts of the human skin, offering a burdenless "unfeelable" wearing experience. A skin-like, multifunctional electronic tattoo made entirely from gold using a standing enokitake-mushroom-like vertically aligned nanowire membrane in conjunction with a programmable local cracking technology is reported. Unlike previous multifunctional systems, only a single material type is needed for the integrated gold circuits involved in interconnects and multiplexed specific sensors, thereby avoiding the use of complex multimaterials interfaces. This is possiblebecause the programmable local cracking technology allows for the arbitrary fine-tuning of the properties of elastic gold conductors from strain-insensitive to highly strain-sensitive simply by adjusting localized crack size, shape, and orientations-a capability impossible to achieve with previous bulk cracking technology. Furthermore, in-plane integration of strain ressure sensors, anisotropic orientation-specific sensors, strain-insensitive stretchable interconnects, temperature sensors, glucose sensors, and lactate sensors without the need of soldering or gluing are demonstrated. This strategy opens a new general route for the design of next-generation wearable electronic tattoos.
No related grants have been discovered for Yiyi Liu.