Build 3D Nanoparticles by Using Ultrathin 2D MOFs Nanosheets for NIR Light-Triggered Molecular Switching.

08:00 EDT 10th March 2020 | BioPortfolio

Summary of "Build 3D Nanoparticles by Using Ultrathin 2D MOFs Nanosheets for NIR Light-Triggered Molecular Switching."

The coordination interactions between transition metal ions (Cu2+, Ag+) and sulfur atoms on ultrathin two-dimensional (2D) nanosheets of spin-crossover (SCO) metal-organic frameworks (MOFs) {[Fe(1,3-bpp)2(NCS)2]2}n (1,3-bpp = 1,3-di(4-pyridyl)propane), which constructed the ultrathin 2D nanosheets into three-dimensional (3D) nanoparticles, have made a profound effect on the SCO performance. Compared with 2D nanosheets, both the intra-ligand π-π* transition band and the metal-to-ligand charge transition (MLCT) band from the d(Fe) + π(NCS) to π*(1,3-bpp), for the 3D nanoparticles, have shown dramatic blue-shifts, meanwhile, the d-d transition band for the high-spin (HS) state Fe(II) ions has been generated, suggesting significantly the influence of 3D assemble caused dimensional changes on the solid-state SCO performance of ultrathin 2D nanosheets. More importantly, by loading on the ytterbium ion (Yb3+)-sensitized hexagonal phase upconverting nanoparticles in the aqueous colloidal suspension, the near infrared (NIR) light (980 nm) triggered HS (high spin) to LS (low spin) state transitions have been observed, demonstrating the achieve of challenging target of NIR light-triggered molecular conversion under environment conditions.


Journal Details

This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252


DeepDyve research library

PubMed Articles [9565 Associated PubMed Articles listed on BioPortfolio]

Embedding Ultrafine Metal Oxide Nanoparticles in Monolayered Metal-Organic Framework Nanosheets Enables Efficient Electrocatalytic Oxygen Evolution.

The development of highly efficient electrocatalysts to reduce overpotentials is vital for accelerating the sluggish oxygen evolution reaction (OER) processes. Herein, we demonstrate ultrathin heterog...

Surface-oxygen vacancy defect-promoted electron-hole separation of defective tungsten trioxide ultrathin nanosheets and their enhanced solar-driven photocatalytic performance.

Defective WO ultrathin surface-engineered nanosheets are fabricated by a solvothermal and low-temperature surface hydrogenation reduction strategy. The obtained defective WO ultrathin nanosheets with ...

Ultrathin boron nanosheets as an emerging two-dimensional photoluminescence material for bioimaging.

Two-dimensional (2D) metal-free sheets with atomic thickness have been highly considered as promising candidates for fluorescent probes, due to their intriguing characteristics. In this work, 2D ultra...

Topotactic Transformation Synthesis of 2D Ultrathin GeS2 Nanosheets towards High-Rate and High-Energy Density Sodium-Ion Half/Full Batteries.

Currently, development of metal sulfide anodes with high capacity, fast charging/discharging, and long cycle life for sodium-ion batteries is still a great challenge. Herein, a topochemical conversion...

A near-infrared light-responsive nanocomposite for photothermal release of HS and suppression of cell viability.

A near-infrared light triggered photothermal H2S-release platform was developed using a combination of photothermal nanoparticles and thermo-labile precursors, and was exploited for synchronous photot...

Clinical Trials [2495 Associated Clinical Trials listed on BioPortfolio]

Topical Silver Nanoparticles for Microbial Activity

Silver nanoparticles are one of most nanoparticles use nowadays in the research area because it has specific physical and chemical properties, in medical fields silver nanoparticles can in...

Topical Application of Silver Nanoparticles and Oral Pathogens in Ill Patients

The purpose of this study is to determine whether oral topic silver nanoparticles are effective to reduce potential pathogen microbial loads in mechanical ventilation patients.

Ultrathin Bronchoscopy for Solitary Pulmonary Nodules

The evaluation of solitary pulmonary nodules (SPN) requires a balance between procedure-related morbidity and diagnostic yield, particularly in areas where tuberculosis is endemic. Data on...

Ultrathin Bronchoscope and Radial Endobronchial Ultrasound (R-EBUS) With Fluoroscopy Versus Standard Fiberoptic Bronchoscopy (FB) (P00029233 )

The purpose of this study is to compare the yield of two methods for obtaining a lung tissue sample: Procedure #1: standard fiberoptic bronchoscopy (FB) with fluoroscopy, and Procedure #2:...

Presence of Nanoparticles in the Amniotic Fluid

The nanoparticles (NP) are defined as particles whose size is no greater than 100 nanometers. However, their impact on health remains little evaluated. Placental transfer of NP has been p...

Medical and Biotech [MESH] Definitions

Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.

Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.

A layer of protein coating adsorbed by NANOPARTICLES upon entry into PLASMA or other protein-containing biological fluids, which affects how nanoparticles are internalized by cells and cleared from the body.

A 3D printing technology where a computer-controlled moving laser beam is used to build up the required structure, layer by layer, from liquid POLYMERS that harden on contact with laser light (photopolymerization).

CELL CYCLE regulatory signaling systems that are triggered by DNA DAMAGE or lack of nutrients during G2 PHASE. When triggered they restrain cells transitioning from G2 phase to M PHASE.

Quick Search

DeepDyve research library

Searches Linking to this Article