scholarly journals Fabrication of highly-specific SERS substrates by co-precipitation of functional nanomaterials during the self-sedimentation of silver nanowires into a nanoporous film

2015 ◽  
Vol 51 (7) ◽  
pp. 1309-1312 ◽  
Author(s):  
Rui Liu ◽  
Jie-fang Sun ◽  
Dong Cao ◽  
Li-qiang Zhang ◽  
Jing-fu Liu ◽  
...  
Keyword(s):  
Silver Nanowires ◽  
Functional Materials ◽  
The Self ◽  
Sers Substrate ◽  
Functional Nanomaterials ◽  
Nanoporous Film ◽  
Sers Substrates ◽  
Nanoporous Films ◽  
Co Precipitation

In this report, we propose and demonstrate the fabrication of a highly-specific SERS substrate by co-precipitating of functional materials, such as nanosorbents and nanocatalysts, into Ag nanoporous films.

scholarly journals Data-Centric Architecture for Self-Driving Laboratories with Autonomous Discovery of New Nanomaterials

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 12
Author(s):  
Maria A. Butakova ◽  
Andrey V. Chernov ◽  
Oleg O. Kartashov ◽  
Alexander V. Soldatov
Keyword(s):  
Design Method ◽  
Functional Materials ◽  
Research Strategy ◽  
The Self ◽  
Multilevel Data ◽  
Functional Nanomaterials ◽  
Driven Systems ◽  
The Core ◽  
Autonomous Discovery ◽  
Fusion Approach

Artificial intelligence (AI) approaches continue to spread in almost every research and technology branch. However, a simple adaptation of AI methods and algorithms successfully exploited in one area to another field may face unexpected problems. Accelerating the discovery of new functional materials in chemical self-driving laboratories has an essential dependence on previous experimenters’ experience. Self-driving laboratories help automate and intellectualize processes involved in discovering nanomaterials with required parameters that are difficult to transfer to AI-driven systems straightforwardly. It is not easy to find a suitable design method for self-driving laboratory implementation. In this case, the most appropriate way to implement is by creating and customizing a specific adaptive digital-centric automated laboratory with a data fusion approach that can reproduce a real experimenter’s behavior. This paper analyzes the workflow of autonomous experimentation in the self-driving laboratory and distinguishes the core structure of such a laboratory, including sensing technologies. We propose a novel data-centric research strategy and multilevel data flow architecture for self-driving laboratories with the autonomous discovery of new functional nanomaterials.

scholarly journals Diketopiperazine Gels: New Horizons from the Self-Assembly of Cyclic Dipeptides

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3376
Author(s):  
Marco Scarel ◽  
Silvia Marchesan
Keyword(s):  
Drug Discovery ◽  
Enzymatic Hydrolysis ◽  
Self Assembly ◽  
Biological Activities ◽  
Functional Materials ◽  
The Self ◽  
Cyclic Dipeptides ◽  
New Horizons ◽  
Concise Review

Cyclodipeptides (CDPs) or 2,5-diketopiperazines (DKPs) can exert a variety of biological activities and display pronounced resistance against enzymatic hydrolysis as well as a propensity towards self-assembly into gels, relative to the linear-dipeptide counterparts. They have attracted great interest in a variety of fields spanning from functional materials to drug discovery. This concise review will analyze the latest advancements in their synthesis, self-assembly into gels, and their more innovative applications.

A Dynamic Route to Structure and Function: Recent Advances in Imine-Based Organic Nanostructured Materials

2013 ◽  
Vol 66 (1) ◽  
pp. 9 ◽  
Author(s):  
Yi Liu ◽  
Zhan-Ting Li
Keyword(s):  
Self Assembly ◽  
Reaction System ◽  
Functional Materials ◽  
Building Blocks ◽  
The Self ◽  
Interlocked Molecules ◽  
Functional Aspects ◽  
Imine Bond ◽  
And Function ◽  
Dynamic Route

The chemistry of imine bond formation from simple aldehyde and amine precursors is among the most powerful dynamic covalent chemistries employed for the construction of discrete molecular objects and extended molecular frameworks. The reversible nature of the C=N bond confers error-checking and proof-reading capabilities in the self-assembly process within a multi-component reaction system. This review highlights recent progress in the self-assembly of complex organic molecular architectures that are enabled by dynamic imine chemistry, including molecular containers with defined geometry and size, mechanically interlocked molecules, and extended frameworks and polymers, from building blocks with preprogrammed steric and electronic information. The functional aspects associated with the nanometer-scale features not only place these dynamically constructed nanostructures at the frontier of materials sciences, but also bring unprecedented opportunities for the discovery of new functional materials.

Silver nanoparticle-incorporated ultralong hydroxyapatite nanowires with internal reference as SERS substrate for trace environmental pollutant detection

2018 ◽  
Vol 42 (22) ◽  
pp. 17950-17957
Author(s):  
Lei Zhang ◽  
Yongquan Luo ◽  
Yameng Zhao ◽  
Boxin Guan ◽  
Lingyi Zhang ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Environmentally Friendly ◽  
Environmental Pollutant ◽  
Sers Substrate ◽  
Internal Reference ◽  
Sers Substrates ◽  
Pollutant Detection

Silver nanoparticle-incorporated HAPNWs as SERS substrates exhibit unique characteristics including stability, convenience and simple and environmentally friendly preparation.

scholarly journals In-Situ Grown Silver Nanoparticles on Nonwoven Fabrics Based on Mussel-Inspired Polydopamine for Highly Sensitive SERS Carbaryl Pesticides Detection

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 384 ◽  
Author(s):  
Zhiliang Zhang ◽  
Tiantian Si ◽  
Jun Liu ◽  
Guowei Zhou
Keyword(s):  
Silver Nanoparticles ◽  
Collection Efficiency ◽  
High Sensitivity ◽  
Sers Substrate ◽  
Analytical Sensitivity ◽  
Sers Substrates ◽  
Rapid Sampling ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The rapid sampling and efficient collection of target molecules from a real-world surface is fairly crucial for surface-enhanced Raman scattering (SERS) to detect trace pesticide residues in the environment and in agriculture fields. In this work, a versatile approach was exploited to fabricate a flexible SERS substrate for highly sensitive detection of carbaryl pesticides, using in-situ grown silver nanoparticles (AgNPs)on non-woven (NW) fabric surfaces based on mussel-inspired polydopamine (PDA) molecules. The obtained NW@PDA@AgNPs fabrics showed extremely sensitive and reproducible SERS signals toward crystal violet (CV) molecules, and the detection limit was as low as 1.0 × 10−12 M. More importantly, these NW@PDA@AgNPs fabrics could be directly utilized as flexible SERS substrates for the rapid extraction and detection of trace carbaryl pesticides from various fruit surfaces through a simple swabbing approach. It was identified that the detection limits of carbaryl residues from apple, orange, and banana surfaces were approximately decreased to 4.02 × 10−12, 6.04 × 10−12, and 5.03 × 10−12 g, respectively, demonstrating high sensitivity and superior reliability. These flexible substrates could not only drastically increase the collection efficiency from multifarious irregular-shaped matrices, but also greatly enhance analytical sensitivity and reliability for carbaryl pesticides. The fabricated flexible and multifunctional SERS substrates would have great potential to trace pesticide residue detection in the environment and bioscience fields.

Core/shell Ag@silicate nanoplatelets and poly(vinyl alcohol) spherical nanohybrids fabricated by coaxial electrospraying as highly sensitive SERS substrates

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67204-67211 ◽  
Author(s):  
Chih-Wei Chiu ◽  
Po-Hsien Lin
Keyword(s):  
Vinyl Alcohol ◽  
Large Scale ◽  
High Efficiency ◽  
Poly Vinyl Alcohol ◽  
Core Shell ◽  
Sers Substrate ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
Coaxial Electrospray

A novel flexible, freestanding, large-scale, and disposable SERS substrate of core/shell Ag@silicate and poly(vinyl alcohol) spherical nanohybrids, fabricated by coaxial electrospray, allows for the high-efficiency detection of adenine from DNA.

Self-assembly of various silver nanocrystals on PmPD/PAN nanofibers as a high-performance 3D SERS substrate

The Analyst ◽  
2015 ◽  
Vol 140 (16) ◽  
pp. 5707-5715 ◽  
Author(s):  
Peng Jia ◽  
Bing Cao ◽  
Jianqiang Wang ◽  
Jin Qu ◽  
Yuxuan Liu ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Sers Substrate ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
Nanofiber Mats ◽  
Pan Nanofiber

The AgNCs (AgNPs, AgNTs and AgNDs) decorated-PmPD/PAN nanofiber mats were obtained as highly sensitive 3D SERS substrates.

Calcium Carbonate and Cellulose/Calcium Carbonate Composites: Synthesis, Characterization, and Biomedical Applications

2016 ◽  
Vol 875 ◽  
pp. 24-44
Author(s):  
Ming Guo Ma ◽  
Shan Liu ◽  
Lian Hua Fu
Keyword(s):  
Calcium Carbonate ◽  
Biomedical Applications ◽  
Value Added ◽  
Functional Materials ◽  
Industrial Applications ◽  
Precipitation Method ◽  
Synthesis Methods ◽  
Water Pretreatment ◽  
Potential Applications ◽  
Co Precipitation

CaCO3 has six polymorphs such as vaterite, aragonite, calcite, amorphous, crystalline monohydrate, and hexahydrate CaCO3. CaCO3 is a typical biomineral that is abundant in both organisms and nature and has important industrial applications. Cellulose could be used as feedstocks for producing biofuels, bio-based chemicals, and high value-added bio-based materials. In the past, more attentions have been paid to the synthesis and applications of CaCO3 and cellulose/CaCO3 nanocomposites due to its relating properties such as mechanical strength, biocompatibility, and biodegradation, and bioactivity, and potential applications including biomedical, antibacterial, and water pretreatment fields as functional materials. A variety of synthesis methods such as the hydrothermal/solvothermal method, biomimetic mineralization method, microwave-assisted method, (co-) precipitation method, and sonochemistry method, were employed to the preparation of CaCO3 and cellulose/CaCO3 nanocomposites. In this chapter, the recent development of CaCO3 and cellulose/CaCO3 nanocomposites has been reviewed. The synthesis, characterization, and biomedical applications of CaCO3 and cellulose/CaCO3 nanocomposites are summarized. The future developments of CaCO3 and cellulose/CaCO3 nanocomposites are also suggested.

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