scholarly journals Instant interfacial self-assembly for homogeneous nanoparticle monolayer enabled conformal “lift-on” thin film technology

2021 ◽  
Vol 7 (52) ◽  
Author(s):  
Liping Song ◽  
Ben Bin Xu ◽  
Qian Cheng ◽  
Xiaoyuan Wang ◽  
Xiaoning Luo ◽  
...  
Keyword(s):  
Thin Film ◽  
Self Assembly ◽  
Thin Film Technology

scholarly journals Precise Synthesis and Thin Film Self-Assembly of PLLA-b-PS Bottlebrush Block Copolymers

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1412
Author(s):  
Eunkyung Ji ◽  
Cian Cummins ◽  
Guillaume Fleury
Keyword(s):  
Thin Film ◽  
Block Copolymers ◽  
Self Assembly ◽  
Ring Opening ◽  
Periodic Structures ◽  
One Pot ◽  
Ordered Structures ◽  
Carbonyl Chloride ◽  
Thin Film Patterning ◽  
Nanoporous Templates

The ability of bottlebrush block copolymers (BBCPs) to self-assemble into ordered large periodic structures could greatly expand the scope of photonic and membrane technologies. In this paper, we describe a two-step synthesis of poly(l-lactide)-b-polystyrene (PLLA-b-PS) BBCPs and their rapid thin-film self-assembly. PLLA chains were grown from exo-5-norbornene-2-methanol via ring-opening polymerization (ROP) of l-lactide to produce norbornene-terminated PLLA. Norbonene-terminated PS was prepared using anionic polymerization followed by a termination reaction with exo-5-norbornene-2-carbonyl chloride. PLLA-b-PS BBCPs were prepared from these two norbornenyl macromonomers by a one-pot sequential ring opening metathesis polymerization (ROMP). PLLA-b-PS BBCPs thin-films exhibited cylindrical and lamellar morphologies depending on the relative block volume fractions, with domain sizes of 46–58 nm and periodicities of 70–102 nm. Additionally, nanoporous templates were produced by the selective etching of PLLA blocks from ordered structures. The findings described in this work provide further insight into the controlled synthesis of BBCPs leading to various possible morphologies for applications requiring large periodicities. Moreover, the rapid thin film patterning strategy demonstrated (>5 min) highlights the advantages of using PLLA-b-PS BBCP materials beyond their linear BCP analogues in terms of both dimensions achievable and reduced processing time.

Electrochemical Characteristics of Aptasensor Based on MEMS Thin-Film Gold Electrode

2013 ◽  
Vol 562-565 ◽  
pp. 441-445
Author(s):  
Yan Xia Yan ◽  
Li Ying Jiang ◽  
Fen Fen Wang ◽  
Yan Zhang ◽  
Jie Hu
Keyword(s):  
Thin Film ◽  
Self Assembly ◽  
Gold Electrode ◽  
Ac Impedance ◽  
Optimum Concentration ◽  
Electrochemical Characteristics ◽  
Universal Method

A new fabrication methods of thin-film gold electrode is reported. Electrochemical characteristics of self-assembly aptasensor based on MEMS thin-film gold electrode has been studied by lots of experiments, characteristics include immobilizing time, AC impedance, CV curves. Experiments indicate immobilizing time of DNA-SH on gold electrode is more than 15 hours. CV curves and AC impedance of MEMS thin-film gold electrode show the same conclusion that 20μm/L DNA is optimum concentration when DNA is immobilized on gold electrode. Those results present a potential universal method for other aptasensors.

Precrystalline P3HT nanowires: growth-controllable solution processing and effective molecular packing transfer to thin-film

CrystEngComm ◽  
2022 ◽  
Author(s):  
Seon-Mi Jin ◽  
Jun Ho Hwang ◽  
Jung Ah Lim ◽  
Eunji Lee
Keyword(s):  
Thin Film ◽  
Conjugated Polymers ◽  
Self Assembly ◽  
Optoelectronic Devices ◽  
Molecular Packing ◽  
Solution Processing ◽  
Roll To Roll ◽  
Nanowires Growth ◽  
Fundamental Research ◽  
Significant Attention

Solution-processable precrystalline nanowires (NWs) of conjugated polymers (CPs) have garnered significant attention in fundamental research based on crystallization-driven self-assembly and in the roll-to-roll fabrication of optoelectronic devices such as organic...

Symmetric Poly(ethylene oxide-b-styrene-b-isoprene) Triblock Copolymers: Synthesis, Characterization, and Self-Assembly in Bulk and Thin Film

2014 ◽  
Vol 47 (18) ◽  
pp. 6373-6381 ◽  
Author(s):  
Yali Qiao ◽  
Rachel Ferebee ◽  
Bongjoon Lee ◽  
Indranil Mitra ◽  
Nathaniel A. Lynd ◽  
...  
Keyword(s):  
Thin Film ◽  
Ethylene Oxide ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals A review on thin films, conducting polymers as sensor devices

2022 ◽  
Author(s):  
E.L. Veera Prabakaran ◽  
K Senthil Vadivu ◽  
B Mouli Prasanth
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Environmental Conditions ◽  
Future Research ◽  
Physical Parameters ◽  
Research Needs ◽  
Future Perspectives ◽  
Thin Film Technology ◽  
Thin Film Sensors ◽  
Sensor Devices

Abstract Thin film sensors are used to monitor environmental conditions by measuring the physical parameters. By using thin film technology, the sensors are capable of conducting precise measurements. Moreover, the measurements are stable and dependable. Furthermore, inexpensive sensor devices can be produced. In this paper, thin film technology for the design and fabrication of sensors that are used in various applications is reviewed. Further, the applications of thin film sensors in the fields of biomedical, energy harvesting, optical, and corrosion applications are also presented. From the review, the future research needs and future perspectives are identified and discussed.

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