A C3-symmetrical tripodal acylhydrazone organogelator for the selective recognition of cyanide ions in the gel and solution phases: practical applications in food samples

Soft Matter ◽  
2020 ◽  
Vol 16 (28) ◽  
pp. 6532-6538 ◽  
Author(s):  
Shilpa Sharma ◽  
Manisha Kumari ◽  
Narinder Singh
Keyword(s):  
Molecular Weight ◽  
Food Samples ◽  
Selective Recognition ◽  
Low Molecular Weight ◽  
Supramolecular Gel ◽  
Practical Applications ◽  
Gel Phase

A low-molecular-weight organogelator is developed which can selectively sense cyanide ions in solution and in the supramolecular gel phase.

Diaminomalenonitrile-decorated cholesterol-based supramolecular gelator: aggregation, multiple analyte (hydrazine, Hg2+ and Cu2+) detection and dye adsorption

2018 ◽  
Vol 42 (16) ◽  
pp. 13718-13725 ◽  
Author(s):  
Atanu Panja ◽  
Kumaresh Ghosh
Keyword(s):  
Molecular Weight ◽  
Functional Group ◽  
Dye Adsorption ◽  
Low Molecular Weight ◽  
Practical Applications ◽  
Supramolecular Gels ◽  
Low Molecular Weight Gelator

A low molecular weight gelator (LMWG) containing a diaminomalenonitrile functional group 1 forms supramolecular gels from DMF–H2O and 1,2-dichlorobenzene. The DMF/H2O gel is multi-analyte responsive (Hg2+, Cu2+ and hydrazine) with practical applications in dye adsorption from water.

scholarly journals Atmospheric water triggers supramolecular gel formation of novel low molecular weight maslinic and oleanolic triterpenic derivatives

2019 ◽  
Vol 3 (12) ◽  
pp. 2637-2646
Author(s):  
Karina Vega-Granados ◽  
Gloria Belén Ramírez-Rodríguez ◽  
Rafael Contreras-Montoya ◽  
Francisco J. Ramírez ◽  
Luis Palomo ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Low Molecular Weight ◽  
Gel Formation ◽  
Atmospheric Water ◽  
Supramolecular Gel

Novel maslinic and oleanolic triterpenic derivatives behave as supramolecular gelators. These compounds have the capacity to gelify DMSO and DMF by slowly capturing atmospheric water.

scholarly journals Organic–inorganic hybrid materials: nanoparticle containing organogels with myriad applications

2014 ◽  
Vol 50 (92) ◽  
pp. 14418-14420 ◽  
Author(s):  
William J. Peveler ◽  
Joseph C. Bear ◽  
Paul Southern ◽  
Ivan P. Parkin
Keyword(s):  
Molecular Weight ◽  
Hybrid Materials ◽  
Low Molecular Weight ◽  
Inorganic Hybrid ◽  
Practical Applications

Remouldable, recyclable, hybrid materials from a low molecular weight organogelator and nanomaterials have diverse practical applications.

Dihalogen and Solvent-Free Preparation of syn-Bimane

Synlett ◽  
2018 ◽  
Vol 29 (08) ◽  
pp. 1043-1046 ◽  
Author(s):  
Flavio Grynszpan ◽  
Ishita Neogi ◽  
Partha Das
Keyword(s):  
Molecular Weight ◽  
Molecular Probes ◽  
Solvent Free ◽  
Low Molecular Weight ◽  
Laser Dyes ◽  
Practical Applications ◽  
Chlorine Gas ◽  
Low Toxicity

Fluorescent bimanes are low molecular weight and low toxicity molecules with applications ranging from biology to LASER dyes. The widespread use of these molecular probes has presumably been stalled by the hazards involved in their current synthetic preparation which involve handling of dangerous halogens like chlorine (gas) and bromine (liq.). The accessibility achieved by the simple and safe dihalogen and solvent-free methodologies described here open the floodgates to additional future practical applications of bimanes.

Transition from low molecular weight non-gelating oligo(amide-triazole)s to a restorable, halide-responsive poly(amide-triazole) supramolecular gel

2014 ◽  
Vol 50 (23) ◽  
pp. 3064-3066 ◽  
Author(s):  
Siu-Lung Yim ◽  
Hak-Fun Chow ◽  
Man-Chor Chan
Keyword(s):  
Molecular Weight ◽  
Low Molecular Weight ◽  
Supramolecular Gel

Switching between non-gelating and gelating polymer: the cation vs anion game.

Construction of a hydroxide responsive C3-symmetric supramolecular gel for controlled release of small molecules

Soft Matter ◽  
2021 ◽  
Author(s):  
Yucun Liu ◽  
Yuanyuan Tan ◽  
Zhixue Liu ◽  
Guangbo Che
Keyword(s):  
Molecular Weight ◽  
Controlled Release ◽  
Small Molecules ◽  
Low Molecular Weight ◽  
Supramolecular Gel ◽  
Low Molecular Weight Gelator

A C3-symmetric acylhydrazone-based low molecular weight gelator (BHTP) bearing three pyridine units was synthesized and it was found to form stable supramolecular gel in the mixture solvent of DMSO-H2O. The...

Extraction of Low Molecular Weight Materials from Gel Spherules, Using the System: Benzoic Acid/Cyclohexane/Crosslinked Polyisoprene

1969 ◽  
Vol 42 (2) ◽  
pp. 471-473
Author(s):  
K. Hummel ◽  
Ch Fuge
Keyword(s):  
Molecular Weight ◽  
Benzoic Acid ◽  
Natural Rubber ◽  
Weight Ratio ◽  
Average Concentration ◽  
Extraction Time ◽  
Low Molecular Weight ◽  
Swelling Agent ◽  
Flow Through ◽  
Gel Phase

Abstract Solid spherules of polyisoprene with different crosslink densities, radius 3 mm, were produced in closed, two-part steel molds, at 150° C, from purified natural rubber containing cumyl peroxide, (0.3 to 40 mmol/100 g of polymer). The spherules were swelled in a solution of benzoic acid (1.3 weight per cent) in cyclohexane at 25° C is equilibrium which was reached after about two days. Equlibrium swelling Q is defined as the weight ratio, swelling agent/polymer, for the polymer swelled to equilibrium; 1/Q increases with crosslinking and serves therefore as a measure of crosslinking. The swelled spherules were extracted with cyclohexane or water, at 25° C, in a flow-through, agitating vessel (with vigorous stirring of the liquid) in such a way that the concentration of benzoic acid in the extract was always negligibly low compared to the average concentration in the gel-phase. Quantity of benzoic acid in the gel spherule, M0, was determined before extraction, and also the residual quantity, Mt, as a function of extraction time.

A high-performance oil-free backing pump for electron microscopes

1978 ◽  
Vol 36 (1) ◽  
pp. 110-111
Author(s):  
G.K.W. Balkau ◽  
E. Bez ◽  
J.L. Farrant
Keyword(s):  
Molecular Weight ◽  
Electron Microscope ◽  
Hot Spots ◽  
High Performance ◽  
Carbonaceous Material ◽  
Contamination Rate ◽  
Low Molecular Weight ◽  
Principal Source ◽  
Rotary Pumps ◽  
Electron Microscopes

The earliest account of the contamination of electron microscope specimens by the deposition of carbonaceous material during electron irradiation was published in 1947 by Watson who was then working in Canada. It was soon established that this carbonaceous material is formed from organic vapours, and it is now recognized that the principal source is the oil-sealed rotary pumps which provide the backing vacuum. It has been shown that the organic vapours consist of low molecular weight fragments of oil molecules which have been degraded at hot spots produced by friction between the vanes and the surfaces on which they slide. As satisfactory oil-free pumps are unavailable, it is standard electron microscope practice to reduce the partial pressure of organic vapours in the microscope in the vicinity of the specimen by using liquid-nitrogen cooled anti-contamination devices. Traps of this type are sufficient to reduce the contamination rate to about 0.1 Å per min, which is tolerable for many investigations.

Low-molecular-weight heparin in the prevention and treatment of thromboembolic disorders

1998 ◽  
Vol 1 (5) ◽  
pp. 166-174 ◽  
Author(s):  
Evelyn R Hermes De Santis ◽  
Betsy S Laumeister ◽  
Vidhu Bansal ◽  
Vandana Kataria ◽  
Preeti Loomba ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Low Molecular Weight Heparin ◽  
Low Molecular Weight ◽  
Prevention And Treatment
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