Fabrication of new multifunctional cotton–modal–recycled aramid blended protective textiles through deposition of a 3D-polymer coating: high fire retardant, water repellent and antibacterial properties

2020 ◽  
Vol 44 (28) ◽  
pp. 12122-12133
Author(s):  
Mohammad Tofayel Ahmed ◽  
Mohammad Neaz Morshed ◽  
Syeda Farjana ◽  
Seung Kook An
Keyword(s):  
Polymer Coating ◽  
Three Dimensional ◽  
Antibacterial Properties ◽  
Fire Retardant ◽  
Water Repellent ◽  
Phosphonium Chloride ◽  
Facile Fabrication ◽  
Protective Textiles

This study reports a facile fabrication of multifunctional cotton–modal–recycled aramid blended protective textiles through the deposition of a three-dimensional tetrakis(hydroxymethyl)phosphonium chloride (THPC)–urea polymer coating.

scholarly journals Three-Dimensional Printing of Hydroxyapatite Composites for Biomedical Application

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 353
Author(s):  
Yanting Han ◽  
Qianqian Wei ◽  
Pengbo Chang ◽  
Kehui Hu ◽  
Oseweuba Valentine Okoro ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
3D Printing ◽  
Biomedical Application ◽  
Three Dimensional ◽  
Antibacterial Properties ◽  
Natural Polymers ◽  
Three Dimensional Printing ◽  
3D Printed ◽  
Dental Applications ◽  
Hard Tissue Engineering

Hydroxyapatite (HA) and HA-based nanocomposites have been recognized as ideal biomaterials in hard tissue engineering because of their compositional similarity to bioapatite. However, the traditional HA-based nanocomposites fabrication techniques still limit the utilization of HA in bone, cartilage, dental, applications, and other fields. In recent years, three-dimensional (3D) printing has been shown to provide a fast, precise, controllable, and scalable fabrication approach for the synthesis of HA-based scaffolds. This review therefore explores available 3D printing technologies for the preparation of porous HA-based nanocomposites. In the present review, different 3D printed HA-based scaffolds composited with natural polymers and/or synthetic polymers are discussed. Furthermore, the desired properties of HA-based composites via 3D printing such as porosity, mechanical properties, biodegradability, and antibacterial properties are extensively explored. Lastly, the applications and the next generation of HA-based nanocomposites for tissue engineering are discussed.

Facile fabrication of three-dimensional superhydrophobic foam for effective separation of oil and water mixture

2016 ◽  
Vol 171 ◽  
pp. 228-231 ◽  
Author(s):  
Jian Li ◽  
Dianming Li ◽  
Weijun Li ◽  
Houde She ◽  
Hua Feng ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Water Mixture ◽  
Effective Separation ◽  
Facile Fabrication

Facile Fabrication of Flower-Like LLM-105 Three-Dimensional Microstructures

2011 ◽  
Vol 239-242 ◽  
pp. 2942-2945 ◽  
Author(s):  
Jin Chen ◽  
Li Li Wang ◽  
Guang Cheng Yang ◽  
Zhi Qiang Qiao ◽  
Fu De Nie
Keyword(s):  
Cross Sections ◽  
Three Dimensional ◽  
Raw Material ◽  
Differential Scanning Calorimetric ◽  
Recrystallization Process ◽  
X Ray ◽  
Facile Fabrication ◽  
Lower Temperature ◽  
Scanning Electron ◽  
Poor Solvent

Flower-like LLM-105 three-dimensional microstructures, which consisted of LLM-105 microrods with rectangular cross-sections, were prepared via a smiple template- and surfactant-free recrystallization process using [Bmim]CF3SO3as good solvent and water as poor solvent. A tentative mechanism for the growth of the flower-like LLM-105 three-dimensional microstructures was proposed on the basis of the analysis of X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). Comparing with LLM-105 raw material, the thermal decomposition took place at lower temperature and the weight loss has increased for the flower-like three-dimensional microstructures in the differential scanning calorimetric/thermogravimetric (DSC/TG) measurements.

scholarly journals EFFICIENT ACOUSTIC COMPOSITE PANELS BASED ON GRAPHITE

2021 ◽  
Vol 6 (4) ◽  
pp. 82-90
Author(s):  
E. Fanina
Keyword(s):  
Experimental Studies ◽  
Three Dimensional ◽  
Sound Field ◽  
Fire Retardant ◽  
Pyramidal Cells ◽  
Sound Insulation ◽  
Composite Panels ◽  
Thin Membrane ◽  
Reverberation Time ◽  
Acoustic Characteristics

A set of experimental studies is carried out to determine the acoustic characteristics of three-dimensional panels of fixed thickness made of carbon-based composite material installed in the opening between the reverberation chambers. Sound insulation indices are determined when they are excited by a diffuse sound field in wide frequency ranges. The reverberation time in model chambers with different partition configurations is calculated. The optimal configuration of the partition with pyramidal cells to reduce the reverberation time in the rooms is determined. The use of graphite in the form of thin membrane applied to various surfaces can significantly reduce the sound pressure levels in the room and increase the sound insulation indices of air noise. In addition to thin membrane, graphite can be used as an additive in composite materials for sound insulation purposes. It is shown that the characteristics of such panels are quite universal. The measured acoustic characteristics of composite panels are compared with similar characteristics of traditional materials. It is determined that the composition belongs to the I group of fire-retardant efficiency and can be recommended for use as a fire-retardant material. The developed acoustic material is an effective absorbing agent that solves problems in architectural acoustics, echo cancellation in construction and architecture. Similar to metamaterials, natural and artificial graphites allow to solve these problems with small volumes and masses using simple and inexpensive technologies.

Characterization of a plasma polymer coating from an organophosphorus silane deposited at atmospheric pressure for fire-retardant purposes

2015 ◽  
Vol 88 ◽  
pp. 39-47 ◽  
Author(s):  
Julien Bardon ◽  
Kadir Apaydin ◽  
Abdelghani Laachachi ◽  
Maude Jimenez ◽  
Thierry Fouquet ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Polymer Coating ◽  
Fire Retardant ◽  
Plasma Polymer

Exploring phytochemicals from Himalayan medicinal plants as novel therapeutic agents

2021 ◽  
Vol 21 ◽  
Author(s):  
Nidhi Saini ◽  
Viney Lather ◽  
Suresh Kumar Gahlawat
Keyword(s):  
Natural Products ◽  
Three Dimensional ◽  
Antibacterial Properties ◽  
Plant Metabolites ◽  
Secondary Plant Metabolites ◽  
Active Constituents ◽  
Synthetic Materials ◽  
Family Names ◽  
Microbial Infections ◽  
Natural Foods

: Over-prescription of medicines leads to some crucial health issues like resistance, non-specificity, etc. Therefore, a human consumes various natural foods, therapeutics, and nutritional supplements to combat this problem. Various therapeutic properties of secondary metabolites such as anticancer, anti-inflammatory, and antibacterial properties are important in drug discovery and medicinal application. These natural products has replaced synthetic materials, resulting in a great deal of sustainability, rational use and preservation of biodiversity. This review described the potential therapeutic applications of secondary plant metabolites found in Himalayan Indian plants. The database contains 45 plants to treat various diseases such as cancer, inflammation, and microbial infections. Besides authorized ITIS names, it includes Hindi names, family names, and active constituents. The most important information about the molecules can be found in the hyperlinks for the active constituents. It includes structures (two-dimensional and three-dimensional), names and identifiers, chemical and physical properties, spectral information, biochemistry, literature and patents. The review also references various phytochemicals responsible for preventing COVID-19. Despite several challenges in manufacturing natural products, researchers may conduct research to produce successful medicines with few side effects.

scholarly journals Antibacterial, Flexible, and Conductive Membrane Based on MWCNTs/Ag Coated Electro-Spun PLA Nanofibrous Scaffolds as Wearable Fabric for Body Motion Sensing

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 120 ◽  
Author(s):  
Lu Gan ◽  
Aobo Geng ◽  
Ying Wu ◽  
Linjie Wang ◽  
Xingyu Fang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Silver Nanoparticles ◽  
Three Dimensional ◽  
Antibacterial Properties ◽  
Human Motion ◽  
Body Motion ◽  
Body Parts ◽  
Motion Sensing ◽  
Nanofibrous Scaffolds ◽  
Conductive Membrane

In the present study, flexible and conductive nanofiber membranes were prepared by coating PLA nanofibrous scaffolds with carbon nanotubes and silver nanoparticles. The morphology and structure of the prepared membrane was characterized, as well as its mechanical properties, electrical sensing behavior during consecutive stretching-releasing cycles and human motion detecting performance. Furthermore, the antibacterial properties of the membrane was also investigated. Due to the synergistic and interconnected three-dimensional (3D) conductive networks, formed by carbon nanotubes and silver nanoparticles, the membrane exhibited repeatable and durable strain-dependent sensitivity. Further, the prepared membrane could accurately detect the motions of different body parts. Accompanied with promising antibacterial properties and washing fastness, the prepared flexible and conductive membrane provides great application potential as a wearable fabric for real-time body motion sensing.

Facile fabrication of microsphere-polymer brush hierarchically three-dimensional (3D) substrates for immunoassays

2015 ◽  
Vol 51 (31) ◽  
pp. 6749-6752 ◽  
Author(s):  
Jiao Ma ◽  
Shifang Luan ◽  
Lingjie Song ◽  
Shuaishuai Yuan ◽  
Shunjie Yan ◽  
...  
Keyword(s):  
Polymer Brush ◽  
Three Dimensional ◽  
Low Noise ◽  
High Signal ◽  
Facile Fabrication

A facile strategy was developed to create a microsphere-polymer brush hierarchically three-dimensional substrate for high signal and low noise in immunoassays.

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