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

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.

Download Full-text

Dihalogen and Solvent-Free Preparation of syn-Bimane

Synlett ◽

10.1055/s-0036-1591964 ◽

2018 ◽

Vol 29 (08) ◽

pp. 1043-1046 ◽

Cited By ~ 1

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.

Download Full-text

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 ◽

10.1039/d0sm00906g ◽

2020 ◽

Vol 16 (28) ◽

pp. 6532-6538 ◽

Cited By ~ 2

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.

Download Full-text

Synthesis and characterizations of new negatively charged organic–inorganic hybrid materials: effect of molecular weight of sol–gel precursor

Journal of Solid State Chemistry ◽

10.1016/j.jssc.2003.12.021 ◽

2004 ◽

Vol 177 (4-5) ◽

pp. 1660-1666 ◽

Cited By ~ 35

Author(s):

Cuiming Wu ◽

Tongwen Xu ◽

Weihua Yang

Keyword(s):

Molecular Weight ◽

Hybrid Materials ◽

Sol Gel ◽

Inorganic Hybrid

Download Full-text

Expanding the scope of gels – combining polymers with low-molecular-weight gelators to yield modified self-assembling smart materials with high-tech applications

Materials Horizons ◽

10.1039/c4mh00245h ◽

2015 ◽

Vol 2 (3) ◽

pp. 279-293 ◽

Cited By ~ 119

Author(s):

Daniel J. Cornwell ◽

David K. Smith

Keyword(s):

Molecular Weight ◽

Hybrid Materials ◽

Smart Materials ◽

Simple Approach ◽

High Tech ◽

Low Molecular Weight ◽

Self Assembling ◽

Low Molecular Weight Gelators

Combining polymer technology with low molecular weight gelators offers a simple approach to create hybrid materials which can open up exciting new perspectives and applications.

Download Full-text

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

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100107691 ◽

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.

Download Full-text