scholarly journals Super-Hydrides of Lanthanum and Yttrium: On Optimal Conditions for Achieving near Room Temperature Superconductivity

2019 ◽  
Vol 09 (01) ◽  
pp. 22-36
Author(s):  
Hans Hermann Otto
Keyword(s):  
Room Temperature ◽  
Optimal Conditions ◽  
Room Temperature Superconductivity

NANOEMULSIONS BASED ON LIPOIC ACID DERIVATIVES WITH VARIOUS ALCOHOLS: PRODUCTION AND INFLUENCE ON FUNCTIONAL ACTIVITY OF PLATELETS

2020 ◽  
pp. 461-464
Author(s):  
A. Sinebryukhova ◽  
A. Shipelova ◽  
E. Darnotuk ◽  
A. Chekanov ◽  
O. Baranova ◽  
...  
Keyword(s):  
Particle Size ◽  
Arachidonic Acid ◽  
Lipoic Acid ◽  
Encapsulation Efficiency ◽  
Room Temperature ◽  
Optimal Conditions ◽  
Pluronic F68 ◽  
Long Term Storage ◽  
Term Storage

The optimal conditions were selected for obtaining homogeneous nanoemulsions (NE) of lipoic acid conjugates (LA-conjugates) based on Pluronic F68 (1,8%) with a particle size not exceeding 400 nm, characterized by 97±2% encapsulation efficiency of substances in nanoparticles (NP). A heterogeneous NE (polydispersity index, PDI>0,3) with the derivative of LA and myo-inositol based on phosphatidylcholine (PC, C = 3 mg/ml) was also obtained consisting of 2 particle fractions: 20–70 nm (27%) and 122–212 nm (73%). The obtained NEs with LA-conjugates based on Pluronic F68 and PC were stable during long-term storage (more than 12 months) at room temperature. The effect of the obtained NEs of LA-conjugates on platelet aggregation (Pt) caused by arachidonic acid (AA) was determined, and a mechanism of their action was proposed.

scholarly journals Microscopic mechanism of room-temperature superconductivity in compressed LaH10

2019 ◽  
Vol 99 (14) ◽  
Author(s):  
Liangliang Liu ◽  
Chongze Wang ◽  
Seho Yi ◽  
Kun Woo Kim ◽  
Jaeyong Kim ◽  
...  
Keyword(s):  
Room Temperature ◽  
Microscopic Mechanism ◽  
Room Temperature Superconductivity

Structure–property correlations in phase-pure B-doped Q-carbon high-temperature superconductor with a record Tc = 55 K

Nanoscale ◽  
2019 ◽  
Vol 11 (18) ◽  
pp. 9141-9154 ◽  
Author(s):  
Anagh Bhaumik ◽  
Jagdish Narayan
Keyword(s):  
High Temperature ◽  
Room Temperature ◽  
High Temperature Superconductor ◽  
Structure Property ◽  
Phase Pure ◽  
Room Temperature Superconductivity ◽  
Property Correlations

The discovery of record BCS Tc = 55 K superconductivity in phase-pure B-doped Q-carbon will provide the pathway to achieve room-temperature superconductivity.

Optimization of cation-doped nano-hydroxyapatite in combination with amorphous aluminum hydroxide for defluoridation

2019 ◽  
Vol 19 (6) ◽  
pp. 1686-1694 ◽  
Author(s):  
Agman Gupta ◽  
Chelli Sai Manohar ◽  
Belliraj Siva Kumar
Keyword(s):  
Aluminum Hydroxide ◽  
Room Temperature ◽  
Optimal Conditions ◽  
Total Removal ◽  
Fluoride Solution ◽  
Kinetics And Thermodynamics ◽  
Adsorption Capacities ◽  
Heavily Doped ◽  
Nano Rods ◽  
Ph Range

Abstract Given widespread fluoride in the ground water, there is a need for effective defluoridation in several geographical areas. In this regard, we explored heavily doped cationic nano-composites of hydroxyapatite (HA) given its surface chemistry for adsorption of the specific anion. We synthesized and extensively characterized HA nano-rods (HA-NR), Al/Mg-HA nanocomposites and amorphous aluminum hydroxide, and optimized their efficient defluoridation. The kinetics and thermodynamics of adsorption were further evaluated to establish the mechanistic rationale and its spontaneity. We report the optimized ideal adsorbents for the near-total removal of fluoride that demonstrated 99.99% and 99.98% efficiency with adsorption capacities of 83.3 and 81.3mg/g respectively. The adsorbent composites were (Mg-HA)-Al(OH)3 and (HA-NR)-Al(OH)3 in 1:1 ratio. The optimal conditions for defluoridation were 25mg of adsorbent in 25ml (10mg/L) fluoride solution at room temperature agitated for 10h in the pH range of 4.88–7.20.

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