scholarly journals Controlled assembly of heterotypic cells in a core–shell scaffold: organ in a droplet

Lab on a Chip ◽  
2016 ◽  
Vol 16 (8) ◽  
pp. 1346-1349 ◽  
Author(s):  
Qiushui Chen ◽  
Stefanie Utech ◽  
Dong Chen ◽  
Radivoje Prodanovic ◽  
Jin-Ming Lin ◽  
...  
Keyword(s):  
Large Scale ◽  
Core Shell ◽  
Artificial Liver ◽  
Controlled Assembly ◽  
Individual Drop

Organ in a drop: we use droplet-based microfluidics to fabricate large-scale, monodisperse, portable micro organs, each in an individual drop. We spatially assemble hepatocytes and fibroblasts in a biocompatible core–shell scaffold, forming an artificial liver in each drop, and expressing enhanced liver-specific functions.

Facile synthesis of Ag@SiO2 core–shell nanowires on large scale

2014 ◽  
Vol 26 (3) ◽  
pp. 1602-1607 ◽  
Author(s):  
Fang Li ◽  
Yu-Ling Zhao ◽  
Wei Dai ◽  
Jing Chen ◽  
Zhengquan Li ◽  
...  
Keyword(s):  
Large Scale ◽  
Core Shell ◽  
Facile Synthesis ◽  
Shell Nanowires

scholarly journals Core@shell Nanoparticles: Greener Synthesis Using Natural Plant Products

2018 ◽  
Vol 8 (3) ◽  
pp. 411 ◽  
Author(s):  
Mehrdad Khatami ◽  
Hajar Alijani ◽  
Meysam Nejad ◽  
Rajender Varma
Keyword(s):  
Large Scale ◽  
Hybrid Nanoparticles ◽  
Target Cells ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Environmental Friendliness ◽  
Shell Nanostructures ◽  
Greener Synthesis ◽  
Core Shell Nanoparticles ◽  
Synthesis Of Nanostructures

Among an array of hybrid nanoparticles, core-shell nanoparticles comprise of two or more materials, such as metals and biomolecules, wherein one of them forms the core at the center, while the other material/materials that were located around the central core develops a shell. Core-shell nanostructures are useful entities with high thermal and chemical stability, lower toxicity, greater solubility, and higher permeability to specific target cells. Plant or natural products-mediated synthesis of nanostructures refers to the use of plants or its extracts for the synthesis of nanostructures, an emerging field of sustainable nanotechnology. Various physiochemical and greener methods have been advanced for the synthesis of nanostructures, in contrast to conventional approaches that require the use of synthetic compounds for the assembly of nanostructures. Although several biological resources have been exploited for the synthesis of core-shell nanoparticles, but plant-based materials appear to be the ideal candidates for large-scale green synthesis of core-shell nanoparticles. This review summarizes the known strategies for the greener production of core-shell nanoparticles using plants extract or their derivatives and highlights their salient attributes, such as low costs, the lack of dependence on the use of any toxic materials, and the environmental friendliness for the sustainable assembly of stabile nanostructures.

Large-Scale Highly Ordered Chitosan-Core Au-Shell Nanopatterns with Plasmonic Tunability: A Top-Down Approach to Fabricate Core-Shell Nanostructures

2010 ◽  
Vol 20 (24) ◽  
pp. 4273-4278 ◽  
Author(s):  
Youn-Kyoung Baek ◽  
Seung Min Yoo ◽  
Taejoon Kang ◽  
Hwan-Jin Jeon ◽  
Kyounghwan Kim ◽  
...  
Keyword(s):  
Large Scale ◽  
Core Shell ◽  
Top Down ◽  
Shell Nanostructures

Large-Scale Ligand-Free Synthesis of Homogeneous Core–Shell Quantum-Dot-Modified Cs4PbBr6 Microcrystals

2019 ◽  
Vol 58 (16) ◽  
pp. 10620-10624 ◽  
Author(s):  
Xiangfeng Wei ◽  
Jiehua Liu ◽  
Han Liu ◽  
Xunyong Lei ◽  
Haisheng Qian ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Large Scale ◽  
Core Shell ◽  
Ligand Free ◽  
Homogeneous Core

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.

scholarly journals Impact of brown and clear carbon on light absorption enhancement, single scatter albedo and absorption wavelength dependence of black carbon

2010 ◽  
Vol 10 (9) ◽  
pp. 4207-4220 ◽  
Author(s):  
D. A. Lack ◽  
C. D. Cappa
Keyword(s):  
Black Carbon ◽  
Light Absorption ◽  
Radiative Forcing ◽  
Large Scale ◽  
Wavelength Dependence ◽  
Absorption Enhancement ◽  
Core Shell ◽  
Enhancement Effect ◽  
Visible Radiation ◽  
Single Scatter

Abstract. The presence of clear coatings on atmospheric black carbon (BC) particles is known to enhance the magnitude of light absorption by the BC cores. Based on calculations using core/shell Mie theory, we demonstrate that the enhancement of light absorption (EAbs) by atmospheric black carbon (BC) when it is coated in mildly absorbing material (CBrown) is reduced relative to the enhancement induced by non-absorbing coatings (CClear). This reduction, sensitive to both the CBrown coating thickness and imaginary refractive index (RI), can be up to 50% for 400 nm radiation and 25% averaged across the visible radiation spectrum for reasonable core/shell diameters. The enhanced direct radiative forcing possible due to the enhancement effect of CClear is therefore reduced if the coating is absorbing. Additionally, the need to explicitly treat BC as an internal, as opposed to external, mixture with CBrown is shown to be important to the calculated single scatter albedo only when models treat BC as large spherical cores (>50 nm). For smaller BC cores (or fractal agglomerates) consideration of the BC and CBrown as an external mixture leads to relatively small errors in the particle single scatter albedo of <0.03. It has often been assumed that observation of an absorption Angström exponent (AAE)>1 indicates absorption by a non-BC aerosol. Here, it is shown that BC cores coated in CClear can reasonably have an AAE of up to 1.6, a result that complicates the attribution of observed light absorption to CBrown within ambient particles. However, an AAE<1.6 does not exclude the possibility of CBrown; rather CBrown cannot be confidently assigned unless AAE>1.6. Comparison of these model results to various ambient AAE measurements demonstrates that large-scale attribution of CBrown is a challenging task using current in-situ measurement methods. We suggest that coincident measurements of particle core and shell sizes along with the AAE may be necessary to distinguish absorbing and non-absorbing OC.

Controlled assembly of poly(d,l-lactide-co-glycolide)/hydroxyapatite core–shell nanospheres under ultrasonic irradiation

2009 ◽  
Vol 5 (1) ◽  
pp. 208-218 ◽  
Author(s):  
M JEVTIC ◽  
A RADULOVIC ◽  
N IGNJATOVIC ◽  
M MITRIC ◽  
D USKOKOVIC
Keyword(s):  
Ultrasonic Irradiation ◽  
Core Shell ◽  
Controlled Assembly

Large-Scale Self-Assembly and Stretch-Induced Plasmonic Properties of Core–Shell Metal Nanoparticle Superlattice Sheets

2014 ◽  
Vol 118 (46) ◽  
pp. 26816-26824 ◽  
Author(s):  
Pengzhen Guo ◽  
Debabrata Sikdar ◽  
Xiqiang Huang ◽  
Kae Jye Si ◽  
Bin Su ◽  
...  
Keyword(s):  
Self Assembly ◽  
Large Scale ◽  
Metal Nanoparticle ◽  
Core Shell

scholarly journals Green Synthesis of Highly Concentrated and Stable Colloidal Dispersion of Core-Shell Silver Nanoparticles (AgNPs-Shell) and their Antimicrobial and Ultra-high Catalytic Properties

2021 ◽  
Author(s):  
Azam Ali ◽  
Mehrukh Zehravi ◽  
Muhammad Humble Khalid Treen ◽  
Jiri Militky ◽  
Fiaz Hussain ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Tannic Acid ◽  
Large Scale ◽  
Catalytic Properties ◽  
Average Particle Size ◽  
Colloidal Dispersion ◽  
Alkaline Condition ◽  
Core Shell ◽  
Average Particle ◽  
One Pot

The versatile one-pot green synthesis of a highly concentrated and stable colloidal dispersion of AgNPs was carried out using the self-assembled tannic acid without using any other hazardous chemicals. Tannic acid (Plant-based polyphenol) was used as a reducing and stabilizing agent for silver nitrate in a mild alkaline condition. The synthesized AgNPs were characterized for their concentration, capping, size distribution, and shape. The experimental results confirmed the successful synthesis of nearly spherical and highly concentrated (2281 ppm) AgNPs, capped with poly-tannic acid (AgNPs-PTA). The average particle size of AgNPs-PTA was found 9.90 &plusmn; 1.60 nm. The colloidal dispersion of synthesized nanoparticles was observed stable for more than 15 months in the ambient environment (25 oC, 65 % relative humidity). The synthesized AgNPs-PTA showed an effective antimicrobial activity against Staphylococcus Aureus Escherichia coli. Ag-PTA also exhibited enhanced catalytic properties. It reduces 4-nitrophenol into 4-aminophenol in the presence of NaBH4 with a normalized rate constant (Knor = K/m) of 615.04 mL&middot;s-1&middot;mg-1. Furthermore, AgNPs-PTA were stable for more than 15 months under ambient conditions. The unique core-shell structure and ease of synthesis render the synthesized nanoparticles superior to others, with potential for large-scale applications, especially in the field of catalysis and biomedical.

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