Record-High Hole Mobility Germanium on Flexible Plastic with Controlled Interfacial Reaction

2021 ◽  
Author(s):  
Toshifumi Imajo ◽  
Takamitsu Ishiyama ◽  
Noriyuki Saitoh ◽  
Noriko Yoshizawa ◽  
Takashi Suemasu ◽  
...  
Keyword(s):  
Interfacial Reaction ◽  
Hole Mobility

Effects of Interfacial Reaction on the Radial Displacement of Oil by Alkaline Solutions

1990 ◽  
Vol 45 (2) ◽  
pp. 231-244 ◽  
Author(s):  
H. A. Nasr-El-Din ◽  
K. C. Khulbe ◽  
V. Hornof ◽  
G. H. Neale
Keyword(s):  
Interfacial Reaction ◽  
Radial Displacement ◽  
Alkaline Solutions

Formulation of Modified Release Atorvastatin Nanoparticles by Emulsion Interfacial Reaction Method

2015 ◽  
Vol 8 (3) ◽  
pp. 2937-2940
Author(s):  
Sudhakar Sekar ◽  
Shee Sim May
Keyword(s):  
Interfacial Reaction ◽  
Therapeutic Potential ◽  
Chitosan Nanoparticles ◽  
In Vitro Release ◽  
Morphological Characteristics ◽  
Preparation Technique ◽  
Modified Release ◽  
Reaction Method ◽  
Vitro Release

The aim of the study is to formulate a modified release chitosan nanoparticles for the oral delivery of atorvastatin and to study the in vitro release of atorvastatin from chitosan nanoparticles. Atorvastatin-loaded chitosan nanoparticles were prepared with different concentration of cross-linking agent (glutaraldehyde) by emulsion interfacial reaction method. The formed nanoparticles were characterized in terms of size and morphological characteristics by scanning electron microscopy (SEM) and transmission electron microscope (TEM). Spherical and regular nanoparticles with the size range of 100-250nm were formed. Atorvastatin encapsulation efficiency of nanoparticles was found to be highest in ANP3, followed by ANP2 and ANP1. The in vitro release of atorvastatin was studied by membrane diffusion technique. The resulted cumulative percentage of drug released for ANP1, ANP2 and ANP3 were 60.08%, 34.81% and 20.39% respectively. Through this study, the nanoparticles preparation technique has shown to be a promising approach for enhancing the dissolution of hydrophobic drugs like atorvastatin calcium. The application of this novel delivery system offers good therapeutic potential in the management of hypercholesterolemia and dyslipidemia.

Preparation and Evaluation of Chitosan Loaded Naproxen Nanoparticles by Emulsion Interfacial Reaction Method

2019 ◽  
Vol 9 (2) ◽  
pp. 89-96
Author(s):  
Abbaraju Krishna Sailaja ◽  
Juveria Banu
Keyword(s):  
Drug Release ◽  
Interfacial Reaction ◽  
Polymer Concentration ◽  
Chitosan Nanoparticles ◽  
Particle Diameter ◽  
Entrapment Efficiency ◽  
Reaction Method ◽  
Release Data ◽  
Mean Particle Diameter

Aim: The aim of this investigation was to develop and characterize naproxen loaded chitosan nanoparticles by emulsion interfacial reaction method. Methodology: For emulsion interfacial reaction method chitosan was used as a polymer. In this method, eight formulations were prepared by varying drug to polymer concentration. Discussion: Out of eight formulations prepared using emulsion interfacial reaction method EI8 formulation was found to be the best formulation. The drug content was observed as 94.4%, entrapment efficiency and loading capacity were found to be 87.5% and 75%, respectively. The mean particle diameter was measured as 324.6nm and the Zeta potential value was found to be -42.4mv. In vitro drug release data showed 97.2% of drug release rate sustained up to 12hrs. Conclusion: The results clearly reveal that EI8 formulation having the highest amount of drug was considered as the best formulation because of its small mean particle diameter, good entrapment efficiency, and stability.

Fabrication of Monolithic Integrated Bimaterial Resonant Uncooled IR Sensor

2013 ◽  
Vol 543 ◽  
pp. 176-179 ◽  
Author(s):  
D.Q. Zhao ◽  
Xia Zhang ◽  
P. Liu ◽  
F. Yang ◽  
C. Lin ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Hole Mobility ◽  
Micro Electro Mechanical System ◽  
Cmos Process ◽  
Standard Cmos Process ◽  
Ir Sensor ◽  
Cantilever Structure ◽  
Cmos Mems ◽  
On Chip ◽  
Micro Cantilever

In this work we studied the fabrication of a monolithic bimaterial micro-cantilever resonant IR sensor with on-chip drive circuits. The effects of high temperature process and stress induced performance degradation were investigated. The post-CMOS MEMS (micro electro mechanical system) fabrication process of this IR sensor is the focus of this paper, starting from theoretical analysis and simulation, and then moving to experimental verification. The capacitive cantilever structure was fabricated by surface micromachining method, and drive circuits were prepared by standard CMOS process. While the stress introduced by MEMS films, such as the tensile silicon nitride which works as a contact etch stopper layer for MOSFETs and releasing stop layer for the MEMS structure, increases the electron mobility of NMOS, PMOS hole mobility decreases. Moreover, the NMOS threshold voltage (Vth) shifts, and transconductance (Gm) degrades. An additional step of selective removing silicon nitride capping layer and polysilicon layer upon IC area were inserted into the standard CMOS process to lower the stress in MOSFET channel regions. Selective removing silicon nitride and polysilicon before annealing can void 77% Vth shift and 86% Gm loss.

Packing Effect on the Transfer Integrals and Mobility in α,α′-bis(dithieno[3,2-b:2′,3′-d]thiophene) (BDT) and its Heteroatom-Substituted Analogues

2011 ◽  
Vol 64 (12) ◽  
pp. 1587 ◽  
Author(s):  
Ahmad Irfan ◽  
Abdullah G. Al-Sehemi ◽  
Shabbir Muhammad ◽  
Jingping Zhang
Keyword(s):  
Electron Transfer ◽  
Electron Mobility ◽  
Hole Mobility ◽  
Experimental Investigations ◽  
Hole Transfer ◽  
Space Group ◽  
Space Groups ◽  
Transfer Integrals ◽  
Packing Effect ◽  
Good Agreement

Theoretically calculated mobility has revealed that BDT is a hole transfer material, which is in good agreement with experimental investigations. The BDT, NHBDT, and OBDT are predicted to be hole transfer materials in the C2/c space group. Comparatively, hole mobility of BHBDT is 7 times while electron mobility is 20 times higher than the BDT. The packing effect for BDT and designed crystals was investigated by various space groups. Generally, mobility increases in BDT and its analogues by changing the packing from space group C2/c to space groups P1 or . In the designed ambipolar material, BHBDT hole mobility has been predicted 0.774 and 3.460 cm2 Vs–1 in space groups P1 and , which is 10 times and 48 times higher than BDT (0.075 and 0.072 cm2 Vs–1 in space groups P1 and ), respectively. Moreover, the BDT behaves as an electron transfer material by changing the packing from the C2/c space group to P1 and .

Interfacial reaction in squeeze cast SICW/AZ91 magnesium alloy composite

1996 ◽  
Vol 35 (4) ◽  
pp. 529-534 ◽  
Author(s):  
Kun Wu ◽  
Mingyi Zheng ◽  
Min Zhao ◽  
Congkai Yao ◽  
Jihong Li
Keyword(s):  
Magnesium Alloy ◽  
Interfacial Reaction ◽  
Alloy Composite ◽  
Az91 Magnesium Alloy ◽  
Squeeze Cast ◽  
Az91 Magnesium

scholarly journals First-Principles Study of a MoS2-PbS van der Waals Heterostructure Inspired by Naturally Occurring Merelaniite

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1649
Author(s):  
Gemechis D. Degaga ◽  
Sumandeep Kaur ◽  
Ravindra Pandey ◽  
John A. Jaszczak
Keyword(s):  
Density Functional ◽  
Van Der Waals ◽  
Hole Mobility ◽  
Functional Theory ◽  
Mos2 Monolayer ◽  
Naturally Occurring ◽  
Weak Interlayer ◽  
Bulk Structure ◽  
P Type ◽  
Interlayer Bonding

Vertically stacked, layered van der Waals (vdW) heterostructures offer the possibility to design materials, within a range of chemistries and structures, to possess tailored properties. Inspired by the naturally occurring mineral merelaniite, this paper studies a vdW heterostructure composed of a MoS2 monolayer and a PbS bilayer, using density functional theory. A commensurate 2D heterostructure film and the corresponding 3D periodic bulk structure are compared. The results find such a heterostructure to be stable and possess p-type semiconducting characteristics. Due to the heterostructure’s weak interlayer bonding, its carrier mobility is essentially governed by the constituent layers; the hole mobility is governed by the PbS bilayer, whereas the electron mobility is governed by the MoS2 monolayer. Furthermore, we estimate the hole mobility to be relatively high (~106 cm2V−1s−1), which can be useful for ultra-fast devices at the nanoscale.

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