Intracellular pH sensing using polymeric micelle containing tetraphenylethylene-oxazolidine

2016 ◽  
Vol 7 (33) ◽  
pp. 5273-5280 ◽  
Author(s):  
Qingkai Qi ◽  
Yue Li ◽  
Xiaoyu Yan ◽  
Fengli Zhang ◽  
Shan Jiang ◽  
...  
Keyword(s):  
Intracellular Ph ◽  
High Selectivity ◽  
Polymeric Micelle ◽  
The Self ◽  
Ph Sensing ◽  
Self Assembled ◽  
Ph Detection

The self-assembled polymeric micelle can be used as an effective probe for intracellular pH detection by switching its luminescence from cyan to red with high selectivity and contrast.

Characterization Of SnO2 Nanoparticles Deposited Via Layer-by-Layer Self Assembly And Investigation Of Their Sensing Properties

2002 ◽  
Vol 739 ◽  
Author(s):  
R. C. Ghan ◽  
Y. Lvov ◽  
R. S. Besser
Keyword(s):  
Self Assembly ◽  
High Selectivity ◽  
Sno2 Nanoparticles ◽  
Test Chamber ◽  
The Self ◽  
Layer By Layer ◽  
Product Analysis ◽  
Glass Substrates ◽  
Self Assembled

ABSTRACTA technique of Layer-by-Layer (LbL) self-assembly is used to deposit SnO2 nanoparticles on Quartz Crystal Microbalance (QCM) resonators, and on glass substrates which the authors believe has not been previously reported. Characterization of self-assembled SnO2 layers has been performed using QCM, Scanning Electron Microscopy (SEM), and Zeta Potential analysis.We have successfully deposited SnO2 nanoparticles on QCM resonator using self-assembly technique. LbL self-assembly is a method of organization of ultra-thin films by interlayer electrostatic attraction. The thickness and mass of the self-assembled layers can be characterized by the frequency shift obtained using the QCM and empirical equations relating change in frequency with mass and thickness of deposited layers. The deposition of SnO2 nanolayers exhibited a linear reproducibility and the process of self-assembly was independent of the residence time of QCM resonator in the SnO2 nanoparticle colloidal solution. High resolution SEM analysis reveals that the SnO2 nanoparticle layers are uniformly deposited across the entire substrate. Electrical characterization was performed on SnO2 nanoparticle layers self-assembled on glass substrates which were patterned for two point (current-voltage) IV characteristic measurements. Two classes of samples were used. One sample was self-assembled glass substrate patterned with electrical contacts and calcined (baked at 350°C for one hour) to eliminate interlayered polyions and the other sample was not calcined. Results revealed that the calcined samples demonstrated linear ohmic behavior but the uncalcined showed some spurious points which we believe are due to the polyion layers.Characterization of the self-assembled SnO2 nanoparticles is being carried out with the intention of fabricating a high-selectivity μ-gas sensor. A test chamber has been fabricated and results of resistance behavior of the sensor with variation in temperature have been presented.The sensor can find applications in high selectivity sensing of chemical, industrial, domestic, and hazardous environments. After further research and development, this μ-gas sensors could be made generic to sense a variety of gases and employed for integrated on-chip product analysis in multiple chemical microsystem applications.

One-pot synthesis of high-concentration mixed-shell polymeric micelles as nanochaperones for renaturation of bulk proteins

2021 ◽  
Author(s):  
Fei Deng ◽  
Menglin Yang ◽  
Yanli Zhang ◽  
Xiaohui Wu ◽  
Rujiang Ma ◽  
...  
Keyword(s):  
Polymeric Micelles ◽  
Polymeric Micelle ◽  
The Self ◽  
High Concentration ◽  
One Pot ◽  
Native Form ◽  
Denatured Protein ◽  
One Pot Synthesis ◽  
Self Assembled ◽  
And Storage

Refolding denatured protein into its native form and stabilizing its structure are significant in the production and storage of protein products. The self-assembled mixed-shell polymeric micelle (MSPM) based nanochaperone closely...

Self-assembled metallogels formed from N,N′,N′′-tris(4-pyridyl)trimesic amide in aqueous solution induced by Fe(iii)/Fe(ii) ions

Soft Matter ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 191-199 ◽  
Author(s):  
Jin-Lian Zhong ◽  
Xin-Jian Jia ◽  
Hui-Jin Liu ◽  
Xu-Zhong Luo ◽  
San-Guo Hong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
High Selectivity ◽  
The Self ◽  
Self Assembled

We report the self-assembled metallogels formed from N,N′,N′′-tris(4-pyridyl)trimesic amide (TPTA) in aqueous solution containing Fe3+/Fe2+. This high selectivity of metallogel formation to Fe3+/Fe2+ may be used for the metallogel application in the test of Fe3+/Fe2+.

Nanoscale Self-Assembly Using Ion and Electron Beam Techniques: A Rapid Review

MRS Advances ◽  
2020 ◽  
Vol 5 (64) ◽  
pp. 3507-3520
Author(s):  
Chunhui Dai ◽  
Kriti Agarwal ◽  
Jeong-Hyun Cho
Keyword(s):  
Electron Beam ◽  
Self Assembly ◽  
Ion Beam ◽  
Three Dimensional ◽  
The Self ◽  
Stress Generation ◽  
Rapid Review ◽  
High Yield ◽  
3D Nanostructures ◽  
Self Assembled

AbstractNanoscale self-assembly, as a technique to transform two-dimensional (2D) planar patterns into three-dimensional (3D) nanoscale architectures, has achieved tremendous success in the past decade. However, an assembly process at nanoscale is easily affected by small unavoidable variations in sample conditions and reaction environment, resulting in a low yield. Recently, in-situ monitored self-assembly based on ion and electron irradiation has stood out as a promising candidate to overcome this limitation. The usage of ion and electron beam allows stress generation and real-time observation simultaneously, which significantly enhances the controllability of self-assembly. This enables the realization of various complex 3D nanostructures with a high yield. The additional dimension of the self-assembled 3D nanostructures opens the possibility to explore novel properties that cannot be demonstrated in 2D planar patterns. Here, we present a rapid review on the recent achievements and challenges in nanoscale self-assembly using electron and ion beam techniques, followed by a discussion of the novel optical properties achieved in the self-assembled 3D nanostructures.

scholarly journals Self-Assembly of Shape-Tunable Oblate Colloidal Particles into Orientationally Ordered Crystals, Glassy Crystals and Plastic Crystals

Soft Matter ◽  
2021 ◽  
Author(s):  
Jiawei Lu ◽  
Xiangyu Bu ◽  
Xinghua Zhang ◽  
Bing Liu
Keyword(s):  
Crystal Structures ◽  
Self Assembly ◽  
Colloidal Particles ◽  
Building Blocks ◽  
Fundamental Question ◽  
The Self ◽  
Plastic Crystals ◽  
Self Assembled ◽  
Glassy Crystals ◽  
The Relationship

The shapes of colloidal particles are crucial to the self-assembled superstructures. Understanding the relationship between the shapes of building blocks and the resulting crystal structures is an important fundamental question....

Self-assembled luminescent cholate gels induced by a europium ion in deep eutectic solvents

Soft Matter ◽  
2021 ◽  
Author(s):  
Meng Sun ◽  
Qintang Li ◽  
Xiao Chen
Keyword(s):  
Self Assembly ◽  
Choline Chloride ◽  
Deep Eutectic Solvents ◽  
Sodium Cholate ◽  
The Self ◽  
Europium Ion ◽  
Self Assembled

Luminescent gels have been successfully fabricated through the self-assembly of sodium cholate and a europium ion in choline chloride-based deep eutectic solvents.

scholarly journals Self-assembled polymeric micelle as a novel mRNA delivery carrier

2021 ◽  
Author(s):  
Jin Ren ◽  
Yiming Cao ◽  
Lei Li ◽  
Xin Wang ◽  
Haitao Lu ◽  
...  
Keyword(s):  
Polymeric Micelle ◽  
Self Assembled

High-performance ambipolar responses to oxidizing NO2 and reducing NH3 based on the self-assembled film of an amphiphilic tris(phthalocyaninato) europium complex

2017 ◽  
Vol 41 (20) ◽  
pp. 11955-11961 ◽  
Author(s):  
Haoyuan Wang ◽  
Xia Kong ◽  
Shuai Zhao ◽  
Junshi Wu ◽  
Xiyou Li ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
High Performance ◽  
Room Temperature ◽  
Europium Complex ◽  
The Self ◽  
Quick Response ◽  
Self Assembled

High-sensitive, quick-response room-temperature sensor to NO2 and NH3 is developed, based on QLS film of a new amphiphilic tris(phthalocyaninato) europium.

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