Formation of Molecular Junctions by Single-Entity Collision Electrochemistry

Controlling and understanding the chemistry of molecular junctions is one of the major themes in various fields ranging from chemistry and nanotechnology to biotechnology and biology. Stochastic single-entity collision electrochemistry (SECE) provides powerful tools to study a single entity, such as single cells, single particles, and even single molecules, in a nanoconfined space. Molecular junctions formed by SECE collision show various potential applications in monitoring molecular dynamics with high spatial resolution and high temporal resolution and in feasible combination with hybrid techniques. This Perspective highlights the new breakthroughs, seminal studies, and trends in the area that have been most recently reported. In addition, future challenges for the study of molecular junction dynamics with SECE are discussed

2D Active Nanobots Based on Soft Nanoarchitectonics Powered by an Ultralow Fuel Concentration

2D Active Nanobots Based on Soft Nanoarchitectonics Powered by an Ultralow Fuel Concentratio

Graphene-Oxide-Based Enzyme Nanoarchitectonics for Substrate Channeling

© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.Invited for the cover of this issue are groups from Deakin University and Qingdao University. The image depicts how tailor-made graphene oxide was used as a two-dimensional scaffold to immobilize and modulate the activity of two enzymes for enzyme cascade reactions. Read the full text of the article at 10.1002/chem.201604348

Graphene as a nano-delivery vehicle in agriculture–current knowledge and future prospects

Graphene has triggered enormous interest in, and exploration of, its applications in diverse areas of science and technology due to its unique properties. While graphene has displayed great potential as a nano-delivery system for drugs and biomolecules in biomedicine, its application as a nanocarrier in agriculture has only begun to be explored. Conventional fertilizers and agricultural delivery systems have a number of disadvantages, such as: fast release of the active ingredient, low delivery efficiency, rapid degradation and low stability that often leads to their over-application and consequent environmental problems. Advanced nano fertilizers with high carrier efficiency and slow and controlled release are now considered the gold standard for promoting agricultural sustainability while protecting the environment. Graphene’s attractive properties include large surface area, chemical stability, mechanical stability, tunable surface chemistry and low toxicity making it a promising material on which to base agricultural delivery systems. Recent research has demonstrated considerable success in the use of graphene for agricultural applications, including its utilization as a delivery vehicle for plant nutrients and crop protection agents, as well as in post-harvest management of crops. This review, therefore, presents a comprehensive overview of the current status of graphene-based nanocarriers in agriculture. Additionally, the review outlines the surface functionalization methods used for effective molecular delivery, various strategies for nano-vehicle design and the underlying features necessary for a graphene-based agro-delivery system. Finally, the review discusses directions for further research in optimization of graphene-based nanocarriers

In Situ Immobilization of Multi-Enzymes for Enhanced Substrate Channeling of Enzyme Cascade Reactions: A Nanoarchitectonics Approach by Directed Metal-Organic Frameworks.

In Situ Immobilization of Multi-Enzymes for Enhanced Substrate Channeling of Enzyme Cascade Reactions: A Nanoarchitectonics Approach by Directed Metal-Organic Frameworks

Synthesis and characterization of silk fibroin-bioactive glass hybrid xerogels

Synthesis and characterization of silk fibroin-bioactive glass hybrid xerogel

Measurements of electrical resistivity and Seebeck coefficient for disc-shaped samples

Herein we develop a methodology to measure the resistivity of discs by deriving a mathematic formula between resistivity and resistance from solving the electrostatic Laplace equation in polar coordinates. Then the resistivity and Seebeck coefficient of disc samples of p- and n-type bismuth telluride are measured experimentally either in nitrogen or helium atmosphere. The validity of Seebeck coefficient is demonstrated by the excellent linearity between Seebeck voltages and temperature differences. The bar samples are also measured for comparison. Finite element simulation is utilized to display the two-dimensional potentials and currents and have an error analysis. Furthermore, the resistivity error due to the probe distance error is discussed analytically based on the mathematic formula, and the probe distance can be optimized to minimize the resistivity error. The disclosed approach would extend the applicability of the present instruments to the disc-shaped samples and be useful in the emerging transverse thermoelectricity

Chemo‐Photothermal Therapy: Nanogold Flower‐Inspired Nanoarchitectonics Enables Enhanced Light‐to‐Heat Conversion Ability for Rapid and Targeted Chemo‐Photothermal Therapy of a Tumor (Adv. Healthcare Mater. 8/2019)

Chemo‐Photothermal Therapy: Nanogold Flower‐Inspired Nanoarchitectonics Enables Enhanced Light‐to‐Heat Conversion Ability for Rapid and Targeted Chemo‐Photothermal Therapy of a Tumor (Adv. Healthcare Mater. 8/2019

Co3Se4 quantum dots encapsulated with nitrogen-doped porous nanocarbon as ultrastable electrode material for water-based all-solid asymmetric supercapacitors

Co3Se4 quantum dots encapsulated with nitrogen-doped porous nanocarbon as ultrastable electrode material for water-based all-solid asymmetric supercapacitor

Biologically Synthesized and Indole Acetic Acid-Loaded Graphene as Biostimulants for Maize Growth Enhancement

Biologically Synthesized and Indole Acetic Acid-Loaded Graphene as Biostimulants for Maize Growth Enhancemen