scholarly journals Antifungal activity of water-stable copper-containing metal-organic frameworks

2017 ◽  
Vol 4 (10) ◽  
pp. 170654 ◽  
Author(s):  
Supaporn Bouson ◽  
Atiweena Krittayavathananon ◽  
Nutthaphon Phattharasupakun ◽  
Patcharaporn Siwayaprahm ◽  
Montree Sawangphruk
Keyword(s):  
Growth Rate ◽  
Candida Albicans ◽  
Antifungal Activity ◽  
Aspergillus Niger ◽  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Antimicrobial Activities ◽  
Porous Coordination Polymers ◽  
Metal Organic ◽  
Agricultural Industries

Although metal-organic frameworks (MOFs) or porous coordination polymers have been widely studied, their antimicrobial activities have not yet been fully investigated. In this work, antifungal activity of copper-based benzene-tricarboxylate MOF (Cu-BTC MOF), which is water stable and industrially interesting, is investigated against Candida albicans , Aspergillus niger , Aspergillus oryzae and Fusarium oxysporum . The Cu-BTC MOF can effectively inhibit the growth rate of C. albicans and remarkably inhibit the spore growth of A. niger , A. oryzae and F. oxysporum . This finding shows the potential of using Cu-BTC MOF as a strong biocidal material against representative yeasts and moulds that are commonly found in the food and agricultural industries.

Selective gas adsorption in microporous metal–organic frameworks incorporating urotropine basic sites: an experimental and theoretical study

2015 ◽  
Vol 51 (73) ◽  
pp. 13918-13921 ◽  
Author(s):  
S. A. Sapchenko ◽  
D. N. Dybtsev ◽  
D. G. Samsonenko ◽  
R. V. Belosludov ◽  
V. R. Belosludov ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Ab Initio ◽  
Coordination Polymers ◽  
Theoretical Study ◽  
Gas Adsorption ◽  
Selective Adsorption ◽  
Metal Organic Frameworks ◽  
Porous Coordination Polymers ◽  
Basic Sites ◽  
Metal Organic

Urotropine-based porous coordination polymers with free N-donors demonstrate selective adsorption towards acidic gas substrates (C2H2 or CO2) as confirmed by isotherm measurements and ab initio DFT calculations.

Selective carbon dioxide adsorption by mixed-ligand porous coordination polymers

CrystEngComm ◽  
2015 ◽  
Vol 17 (44) ◽  
pp. 8388-8413 ◽  
Author(s):  
Biswajit Bhattacharya ◽  
Debajyoti Ghoshal
Keyword(s):  
Carbon Dioxide ◽  
Solid State ◽  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Mixed Ligand ◽  
Carbon Dioxide Adsorption ◽  
Porous Coordination Polymers ◽  
Metal Organic ◽  
Proper Design

Mixed ligand metal–organic frameworks (MOFs) have resolutely established themselves as a class of excellent solid state sorbents for carbon dioxide (CO2) and a proper design of such MOF can potentially improve not only the amount of CO2 adsorption, but also the selectivity of CO2 uptake over other gases and volatiles.

scholarly journals Antimicrobial Activities of Alkaloids and Lignans from Zanthoxylum budrunga

2008 ◽  
Vol 3 (1) ◽  
pp. 1934578X0800300
Author(s):  
M. Mukhlesur Rahman ◽  
Alexander I. Gray ◽  
Proma Khondkar ◽  
M. Anwarul Islam
Keyword(s):  
Candida Albicans ◽  
Antifungal Activity ◽  
Aspergillus Niger ◽  
Stem Bark ◽  
Antibacterial Activities ◽  
Antimicrobial Activities ◽  
Klebsiella Aerogenes ◽  
Bacterial Strains ◽  
Gram Negative ◽  
Test Organisms

Eight alkaloids (2–9) and two lignans (1 and 10) isolated from the stem bark of Zanthoxylum budrunga were tested against a panel of bacteria (both Gram positive and Gram negative) and fungi. Significant antibacterial activities were exhibited by all compounds against the test bacterial strains, except Klebsiella aerogenes. All compounds except the mixture of 2 and 3 showed reasonable antifungal activity against Aspergillus niger and Candida albicans. The MICs of the compounds against the test organisms were recorded in the range of 0.06–1.568 μmol.

scholarly journals Designing Proton Conducting Metal Organic Frameworks

2014 ◽  
Vol 70 (a1) ◽  
pp. C1121-C1121
Author(s):  
George Shimizu ◽  
Benjamin Gelfand
Keyword(s):  
Fuel Cells ◽  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Proton Conductors ◽  
Water Stability ◽  
Electrode Kinetics ◽  
Porous Coordination Polymers ◽  
Metal Organic ◽  
Higher Temperature ◽  
Temperature Conduction

Metal organic frameworks (MOFs) or porous coordination polymers (PCPs) represent a tunable molecular scaffolding that can be adjusted for a breadth of applications. This presentation will concern our efforts towards tailoring MOFs towards making new proton conductors ultimately for fuel cells. A major hurdle in these technologies is an electrolyte capable of conducting protons above 100°C. Higher operating temperatures will enhance electrode kinetics and decrease electrode poisoning among several critical operational benefits. In contrast to the macromolecular approaches typically employed towards these electrolytes, we have used a MOF strategy to generate crystalline networks with acidic pores. These MOFs present options to address higher temperature conduction,1 conduction over 10-2 Scm-1,2 and water stability.3 The emphasis in the talk will concern routes to designing these systems and subsequent challenges in their characterization.

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