Facile synthesis, characterization, and potential applications of two kinds of polymeric pH indicators: Phenolphthalein formaldehyde ando-cresolphthalein formaldehyde

2005 ◽  
Vol 43 (5) ◽  
pp. 1019-1027 ◽  
Author(s):  
Zhihong Liu ◽  
Junfeng Liu ◽  
Tianlu Chen
Keyword(s):  
Facile Synthesis ◽  
Ph Indicators ◽  
Potential Applications

scholarly journals SnSe Nanosheets: From Facile Synthesis to Applications in Broadband Photodetections

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 49
Author(s):  
Xiangyang Li ◽  
Zongpeng Song ◽  
Huancheng Zhao ◽  
Wenfei Zhang ◽  
Zhenhua Sun ◽  
...  
Keyword(s):  
Transient Absorption ◽  
Ultrafast Optics ◽  
Light Response ◽  
Transient Absorption Spectroscopy ◽  
Monolayer Graphene ◽  
Proof Of Concept ◽  
Facile Synthesis ◽  
Femtosecond Transient Absorption ◽  
Potential Applications ◽  
Promising Area

In recent years, using two-dimensional (2D) materials to realize broadband photodetection has become a promising area in optoelectronic devices. Here, we successfully synthesized SnSe nanosheets (NSs) by a facile tip ultra-sonication method in water-ethanol solvent which was eco-friendly. The carrier dynamics of SnSe NSs was systematically investigated via a femtosecond transient absorption spectroscopy in the visible wavelength regime and three decay components were clarified with delay time of τ1 = 0.77 ps, τ2 = 8.3 ps, and τ3 = 316.5 ps, respectively, indicating their potential applications in ultrafast optics and optoelectronics. As a proof-of-concept, the photodetectors, which integrated SnSe NSs with monolayer graphene, show high photoresponsivities and excellent response speeds for different incident lasers. The maximum photo-responsivities for 405, 532, and 785 nm were 1.75 × 104 A/W, 4.63 × 103 A/W, and 1.52 × 103 A/W, respectively. The photoresponse times were ~22.6 ms, 11.6 ms, and 9.7 ms. This behavior was due to the broadband light response of SnSe NSs and fast transportation of photocarriers between the monolayer graphene and SnSe NSs.

scholarly journals Facile Synthesis of Sprayed CNTs Layer-Embedded Stretchable Sensors with Controllable Sensitivity

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 311 ◽  
Author(s):  
Hammad R. Khalid ◽  
Iqra Choudhry ◽  
Daeik Jang ◽  
Nadir Abbas ◽  
M. Salman Haider ◽  
...  
Keyword(s):  
Electrical Resistance ◽  
Electronic Devices ◽  
Polymer Layer ◽  
Facile Synthesis ◽  
Optical Images ◽  
Significant Interest ◽  
Potential Applications ◽  
Facile Fabrication ◽  
Stretchable Sensors ◽  
Solution Volume

Flexible electronic devices have gained significant interest due to their different potential applications. Herein, we report highly flexible, stretchable, and sensitive sensors made of sprayed CNT layer, sandwiched between two polymer layers. A facile fabrication process was employed in which the CNT solution was directly sprayed onto a patterned bottom polymer layer, above which a second polymer layer was casted to get a sandwiched composite structure. Varying amounts of CNT solution (i.e., 10, 25, 40, 70, and 100 mL) were sprayed to get conductive CNT layers of different thicknesses/densities. The physical characteristics of the conductive CNT layers were studied through SEM and optical images. The starting electrical resistance values (without strain) as well as the changes in electrical resistance against human body motions were monitored. The synthesized samples exhibited good response against finger and wrist bending. The conductivity of the samples increased with increase of CNT solution volume while the sensitivity followed the inverse relation, suggesting that the sensors with controlled sensitivity could be fabricated for targeted strain ranges using the proposed method.

Cancer theranosis using mono-disperse, mesoporous gold nanoparticles obtained via a robust, high-yield synthetic methodology

RSC Advances ◽  
2016 ◽  
Vol 6 (16) ◽  
pp. 13554-13561 ◽  
Author(s):  
Taeksu Lee ◽  
Doyeon Bang ◽  
Yong Wook Chang ◽  
Yuna Choi ◽  
Kwang Yeol Park ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
High Yield ◽  
Synthetic Methodology ◽  
Facile Synthesis ◽  
Potential Applications

Here, we introduce the facile synthesis of scalable, mono-disperse, mesoporous gold nanoparticles (MPGNs) with an acidic emulsification method, which exhibit many attractive nanoplasmonic features for potential applications in many fields.

Elektrochemische Synthesen, XIX [1]. Eine elektrochemische Synthese von Polythiazyl / Electrochemical Syntheses, XIX [1]. An Electrochemical Synthesis of Polythiazyl

1983 ◽  
Vol 38 (11) ◽  
pp. 1375-1382 ◽  
Author(s):  
Heinz P. Fritz ◽  
Rainer Bruchhaus
Keyword(s):  
Electrochemical Synthesis ◽  
Low Temperatures ◽  
Mass Spectra ◽  
Cathodic Reduction ◽  
Facile Synthesis ◽  
Elemental Analyses ◽  
Potential Applications

AbstractA facile synthesis of (chlorinated) polythiazyl by cathodic reduction of (S5N5)(FeCL4] in (Bu4N)[BF4]/CH2Cl2 at low temperatures is reported. The product was characterized by IR and mass spectra, Debeye-Scherrer diagrams and elemental analyses. Potential applications were tested.

Facile Synthesis of Nicore - Agshell Bimetallic Nano Particles for Conductive Paste

2013 ◽  
Vol 661 ◽  
pp. 42-46
Author(s):  
Wen Hua Li ◽  
Ji Min Xie ◽  
Jun Jie Jing ◽  
Hui Ru Qin ◽  
Ming Mei Zhang ◽  
...  
Keyword(s):  
Silver Ions ◽  
Nano Particles ◽  
Core Shell ◽  
Narrow Size Distribution ◽  
Facile Synthesis ◽  
Transmission Electron ◽  
Potential Applications ◽  
Shell Particles ◽  
Fcc Structure ◽  
Silver Shell

Ni-Ag core-shell nano particles have been facilely prepared by redox-transmetalation reaction of silver ions on the surface of nickle nano particles. As characterized by transmission electron microscopy (TEM), the as-synthesized core-shell particles were mono-dispersed and exhibited a narrow size distribution ranging from 200nm to 300nm. XRD analyses indicated both Ni core and Ag shell had an fcc structure. Furthermore, the thickness of silver shell was controllable via changing the mole ratio of Ag to Ni, which could show benefits for potential applications in optical, catalytic and electronic fields.

Facile Synthesis and Growth Mechanism of Uniform Fe3O4 Nanorod with Strong Magnetic Response

2013 ◽  
Vol 699 ◽  
pp. 616-619 ◽  
Author(s):  
Xi Zhou ◽  
Yan Feng Shi ◽  
Zhi Wei Chen
Keyword(s):  
Synthesis Method ◽  
Vinyl Pyrrolidone ◽  
High Yield ◽  
Response Property ◽  
Formation Mechanisms ◽  
Magnetic Response ◽  
Facile Synthesis ◽  
Magnetic Characterization ◽  
Potential Applications ◽  
Poly Vinyl Pyrrolidone

Rod-shaped Fe3O4 nanocrystals have been prepared with a high yield using a facile poly (vinyl pyrrolidone) (PVP)-mediated hydrothermal synthesis method at a low temperature of 90 °C. The formation mechanisms related to the chemical reaction, Fe3O4 nuclei and Fe3O4 rod-shaped crystal growth were discussed in detail. Furthermore, magnetic characterization showed that the Fe3O4 nanorod exhibited a strong magnetic response property, which leads to their potential applications in the bioseparation fields.

scholarly journals Seeded Growth of Au@CuxO Core–Shell Mesoporous Nanospheres and Their Photocatalytic Properties

2021 ◽  
Vol 9 ◽  
Author(s):  
Gongguo Zhang ◽  
Yanyun Ma ◽  
Feng Liu ◽  
Zhibo Tong ◽  
Jingquan Sha ◽  
...  
Keyword(s):  
Mesoporous Structure ◽  
Oxidation States ◽  
Oxide Shell ◽  
Core Shell ◽  
Seeded Growth ◽  
Facile Synthesis ◽  
Adsorption Ability ◽  
Mixed Oxidation ◽  
Potential Applications ◽  
Excellent Stability

We report a facile synthesis of Au@CuxO core–shell mesoporous nanospheres with tunable size in the aqueous phase via seeded growth. The success of the current work relies on the use of a halide-free copper (Cu) precursor and n-oleyl-1,3-propanediamine as a capping agent to facilitate the formation of a copperish oxide shell with a mesoporous structure and the presence of mixed oxidation states of Cu. By varying the amount of spherical Au seeds while keeping other parameters unchanged, their diameters could be readily tuned without noticeable change in morphology. As compared with commercial Cu2O, the as-prepared Au@CuxO core–shell mesoporous nanospheres exhibit the higher adsorption ability, enhanced activity, and excellent stability toward photocatalytic degradation of methyl orange (MO) under visible light irradiation, indicating their potential applications in water treatment.

scholarly journals Green synthesis of metal nanoparticles using plant phytochemicals and their potential applications

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Shib Shankar Dash
Keyword(s):  
Metal Nanoparticles ◽  
Plant Extracts ◽  
Room Temperature ◽  
Optoelectronic Devices ◽  
Polyphenolic Compounds ◽  
Facile Synthesis ◽  
Living Plant ◽  
Potential Applications ◽  
One Step ◽  
The One

Various plant extract rich in phytochemicals have been utilized for the one step synthesis of metal nanoparticles at room temperature. The phytochemicals especially polyphenolic compounds are highly efficient to reduce metal ions and also stabilize them in nanometric dimension. Interestingly, no other stabilizing agent is necessary for such synthesis. The metal nanoparticles especially gold and silver using plants (plant tissue, plant extracts and living plant) has gained much interest in recent years because of their applications in pharmaceuticals, optoelectronic devices, drug delivery into cell and catalysis etc. In this review, I have addressed the one step facile synthesis of metal nanoparticles using different plant extracts, various methods of characterization and applications of metal nanoparticles.

Arylamine-Substituted Hexa-peri-hexabenzocoronenes: Facile Synthesis and Their Potential Applications as“Coaxial” Hole-Transport Materials

2004 ◽  
Vol 43 (40) ◽  
pp. 5331-5335 ◽  
Author(s):  
Jishan Wu ◽  
Martin Baumgarten ◽  
Michael G. Debije ◽  
John M. Warman ◽  
Klaus Müllen
Keyword(s):  
Hole Transport ◽  
Facile Synthesis ◽  
Potential Applications ◽  
Coaxial Hole
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