USA As Represented by Secretary of the Navy

Other

The United States of America As Represented by the Secretary of

Michael A Markowitz

Banahalli R Ratna

Paul E Schoen

Bruce P Gaber

David Curtis Turner

Jonathan S Dordick

Alok Singh

Douglas S Clark

Paul Roger Kust

Mazyar Zeinali

Paul T Charles

Gan Moog Chow

Jawad Naciri

R Andrew McGill

Brett D Martin

Scott A Trammell

Brandy J White

J Matthew Mauro

Gan-Moog Chow

Anne W Kusterbeck

Brian Melde

Jennifer L Stepnowski

Mehran Pazirandeh

Mark C Burleigh

A device having: one or more substrates in an enclosure having an inlet and an outlet; a template directed molecular imprinted material on the substrates; and a heater to heat the material. A method of: providing the above device including a sensor coupled to the outlet; flowing a gas though the device; heating the material; and flowing any vapor evolved from the material into the sensor.

Hybrid preconcentrator for detection of materials

A composite material formulated for slow release of a small molecule in seawater includes a porous inorganic oxide framework and micelles embedded within the pores of the framework. The micelles include a surfactant and a small molecule, the surfactant being present in the composite material at no more than 80 parts by weight per 100 parts by weight inorganic oxide, the composite material being stable in seawater for releasing the small molecule over at least 20 days.

Composite for controlled release of small molecules in aquatic environments

A compound having the formula below. X is hydroxyl, a sulfonic ester or salt thereof, a phosphonate or salt thereof, a carboxylate or salt thereof, or a boronic ester or salt thereof. The value n is an integer greater than or equal to 2. A polymer made by polymerizing the compound. A method of: reacting NH&#x2014;(CH&#x2014;CH&#x2014;O)&#x2014;CH&#x2014;CH&#x2014;OH with thiophene acid chloride to form a (SCH)&#x2014;CO&#x2014;NH&#x2014;(CH&#x2014;CH&#x2014;O)&#x2014;CH&#x2014;CH&#x2014;OH amide; reacting the amide with a vinyl sulfonic ester, a vinyl phosphonate, a vinyl carboxylate, or a vinyl boronic ester to form an intermediate; and converting the intermediate to a salt form. 

Tether-containing conducting polymers

Periodic mesoporous organosilicas (PMO) which incorporate an optically active molecule into the material for use as an optical indicator of target binding. This material combines the stability, selectivity, and high density of binding sites characteristic of the PMO with the sensitivity and selectivity of the optically active molecule. The material undergoes a change when exposed to a sample containing a target molecule. The change can be observed by visual inspection or through the use of fluorescence spectra.

Fluorophore embedded/incorporating/bridged periodic mesoporous organosilicas as recognition elements for optical sensors

A molecularly imprinted material made from polymerizing a monomer having the structural formula (OR)Si&#x2014;B-A-B&#x2014;Si(OR). A is a divalent organic group, B is a saturated or unsaturated divalent hydrocarbon group or a covalent bond, and R is an independently selected saturated or unsaturated monovalent hydrocarbon group. A preconcentrator having: a container comprising in inlet and an outlet and the above material within the container. The inlet is capable of allowing a fluid to enter the container. The outlet is capable of being coupled to a sensor and of allowing the fluid to exit the container.

Nanoporous organosilicas as pre-concentration materials for sensors

Enzymes are modified by incorporating anchor sites for linking the enzymes to a target surface without destroying the catalytic activity of the enzymes. A stable carrier to accommodate and bind the selected enzyme is constructed, and the enzyme is non-covalently linked to the carrier, generally through metal salts of iminodiacetate.

Passivation of nerve agents by surface modified enzymes stabilized by non-covalent immobilization on robust, stable particles

A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase. When reactive monomers are allowed to polymerize in the water phase to form particles, the surface of the particles have cavities that are the mirror image of the imprint group.

Molecularly-imprinted material made by template-directed synthesis

This invention pertains to adsorption by an adsorbent of an adsorbate and to regeneration of the loaded adsorbent. The adsorption includes contacting an adsorbent selected from arylene-bridged polysilsesquioxanes and derivatives thereof with an adsorbate selected from aromatics and heterocyclics, particularly monocyclic heterocyclics containing carbon and nitrogen atoms in a 6-member non-aromatic ring, for a period of time sufficient to adsorb all or part of the adsorbate by the adsorbent. Regeneration of the loaded adsorbent includes removing all or part of adsorbate from the adsorbent by means of an alcohol wash or by thermal desorption of the adsorbent containing adsorbate.

Reusable polysilsesquioxane adsorbents for pollutants

The present invention relates to a powder of unagglomerated metallic particles. More particularly, the present invention relates to a powder of unagglomerated metallic particles having an average diameter of about 1-100 nm and the process for making the same. Additionally, the powder of unagglomerated metallic particles can be formed into a lyophilized form which upon reconstitution maintains the average diameter of between about 1-100 nm wherein the particles remain unagglomerated.

Synthesis of unagglomerated metal nano-particles at membrane interfaces

Nanoparticle metal powder having a controllable and narrow size distribution are by electrolessly plating a metal on the interior of a vesicle made of at least one polymerized phospholipid. Electroless plating may be accomplished by catalytic reduction of the metal ion or u.v. reduction of the metal ion.

Growing community of inventors

Burke, VA, United States of America

Michael A Markowitz