Microparticle-Supported Conjugated Polyelectrolyte Brushes Prepared by Surface-Initiated Kumada Catalyst Transfer Polycondensation for Sensor Applications

2010 ◽  
Vol 31 (24) ◽  
pp. 2146-2150 ◽  
Author(s):  
Roman Tkachov ◽  
Volodymyr Senkovskyy ◽  
Ulrich Oertel ◽  
Alla Synytska ◽  
Marta Horecha ◽  
...  
Keyword(s):  
Conjugated Polyelectrolyte ◽  
Polyelectrolyte Brushes ◽  
Sensor Applications

Two-Photon-Induced Charge-Variable Conjugated Polyelectrolyte Brushes for Effective Gene Silencing

2019 ◽  
Vol 2 (4) ◽  
pp. 1676-1685 ◽  
Author(s):  
Hui Zhao ◽  
Haojie Tao ◽  
Wenbo Hu ◽  
Xiaofei Miao ◽  
Yufu Tang ◽  
...  
Keyword(s):  
Gene Silencing ◽  
Conjugated Polyelectrolyte ◽  
Polyelectrolyte Brushes ◽  
Two Photon ◽  
Induced Charge

scholarly journals A facile route to electronically conductive polyelectrolyte brushes as platforms of molecular wires

2015 ◽  
Vol 6 (3) ◽  
pp. 1754-1760 ◽  
Author(s):  
Karol Wolski ◽  
Michał Szuwarzyński ◽  
Szczepan Zapotoczny
Keyword(s):  
Charge Transport ◽  
Molecular Wires ◽  
Conjugated Polyelectrolyte ◽  
Polyelectrolyte Brushes ◽  
Conductive Surface ◽  
Facile Route

Conjugated polyelectrolyte brushes grafted from a conductive surface and forming a 1D macromolecular pathway for charge transport are synthesized.

Hybrid Micro-Optical Sensors via Sol-Gel Soft Lithography

2000 ◽  
Vol 628 ◽  
Author(s):  
Mark A. Clarner ◽  
Michael J. Lochhead
Keyword(s):  
Optical Sensors ◽  
Soft Lithography ◽  
Sol Gel ◽  
Silica Gels ◽  
Ph Sensing ◽  
Ambient Conditions ◽  
Sensor Applications ◽  
Patterned Structures ◽  
Biological Functionality ◽  
Indicator Dyes

ABSTRACTOrganically modified silica gels and dye-doped silica gels have been patterned into micrometer-scale structures on a substrate using micro molding in capillaries (MIMIC). This approach is from a class of elastomeric stamping and molding techniques collectively known as soft lithography. Soft lithography and sol-gel processing share attractive features in that they are relatively benign processes performed at ambient conditions, which makes both techniques compatible with a wide variety of organic molecules, molecular assemblies, and biomolecules. The combination of sol-gel and soft lithography, therefore, holds enormous promise as a tool for microfabrication of materials with optical, chemical, or biological functionality that are not readily patterned with conventional methods. This paper describes our investigation of micro-patterned organic-inorganic hybrid materials containing indicator dyes for microfluidic sensor applications. Reversible colorimetric pH sensing via entrapped reagents is demonstrated in a prototype microfluidic sensor element. Patterned structures range from one to tens of micrometers in cross-section and are up to centimeters in length. Fundamental chemical processing issues associated with mold filling, cracking and sensor stability are discussed.

Cationic π-Conjugated Polyelectrolyte Shows Antimicrobial Activity by Causing Lipid Loss and Lowering Elastic Modulus of Bacteria

2020 ◽  
Vol 12 (44) ◽  
pp. 49346-49361
Author(s):  
Ehsan Zamani ◽  
Tyler J. Johnson ◽  
Shyambo Chatterjee ◽  
Cheryl Immethun ◽  
Anandakumar Sarella ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Elastic Modulus ◽  
Conjugated Polyelectrolyte

scholarly journals Rapid Growth of TiO2 Nanoflowers via Low-Temperature Solution Process: Photovoltaic and Sensing Applications

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 566 ◽  
Author(s):  
M. Akhtar ◽  
Ahmad Umar ◽  
Swati Sood ◽  
InSung Jung ◽  
H. Hegazy ◽  
...  
Keyword(s):  
Low Temperature ◽  
Anatase Phase ◽  
Three Dimensional ◽  
Solution Process ◽  
Dye Sensitized Solar Cell ◽  
Sensor Applications ◽  
Dye Sensitized ◽  
Sensing Applications ◽  
Density Growth ◽  
Temperature Solution

This paper reports the rapid synthesis, characterization, and photovoltaic and sensing applications of TiO2 nanoflowers prepared by a facile low-temperature solution process. The morphological characterizations clearly reveal the high-density growth of a three-dimensional flower-shaped structure composed of small petal-like rods. The detailed properties confirmed that the synthesized nanoflowers exhibited high crystallinity with anatase phase and possessed an energy bandgap of 3.2 eV. The synthesized TiO2 nanoflowers were utilized as photo-anode and electron-mediating materials to fabricate dye-sensitized solar cell (DSSC) and liquid nitroaniline sensor applications. The fabricated DSSC demonstrated a moderate conversion efficiency of ~3.64% with a maximum incident photon to current efficiency (IPCE) of ~41% at 540 nm. The fabricated liquid nitroaniline sensor demonstrated a good sensitivity of ~268.9 μA mM−1 cm−2 with a low detection limit of 1.05 mM in a short response time of 10 s.

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