The University of Massachusetts Amherst

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Anti-flammable Compounds and Adhesive Materials
This invention provides new chemical compositions and methods for the preparation of adhesive materials with low flammability. The low flammability is due to newly invented organic/polymeric components used in the adhesive formulation, rather than through the addition of a conventional anti-flammable additives such as halogenated organic molecules or phosphorous-containing structures.
Published: 8/13/2020   |   Inventor(s): Todd Emrick, Justin Timmons, Megan Szyndler
Category(s): Chemicals, Environmental, Material science, Physical Science
New Protein Labeling Reagents for Improved Protein Structural Analysis by Mass Spectrometry
Published: 12/23/2019   |   Inventor(s): Richard Vachet, Sankaran Thayumanavan, Bo Zhao, Jiaming Zhuang
Category(s): Chemicals, Life Sciences, Research tools
Novel Zwitterionic Polymers as Novel Polymeric Surfactants, Coatings and Interlayers
This invention provides a new class of zwitterionic polymers that exhibit hydrophobic properties and are soluble in polar organic solvents, allowing for their use as novel polymeric surfactants, and as functional materials in other applications.
Published: 12/20/2019   |   Inventor(s): Todd Emrick, Marcel Brown
Category(s): Material science, Chemicals, Physical Science
More efficient, low energy manufacturing method for 2D Zeolites
Zeolites have found wide application in catalysis and separation processes due to their tunable pore structure and active sites, and they show remarkable stability in commercial use. Recently, ultra-thin two-dimensional (2D) zeolite nanosheets have been synthesized from zeolite precursors. These ultra-thin nanosheets show promise for high throughput separations and catalytic reactions involving bulky molecules. A commercially feasible synthesis method, however, has yet to be developed. State-of-the-art methods require high energy input and multiple processing steps, and give low yield and small nanosheet size.


Professors Winter and Fan have developed a simpler, lower energy method to synthesize ultra-thin 2D zeolite nanosheets from precursor zeolite materials, such as MCM-22 and ml-MFI. In the method, zeolite precusors can be subjected to either a short sonication or chaotic flow treatment in the presence of commercially available telechelic polymers, resulting in exfoliated zeolite nanosheets. While demonstrated in batch, this process can potentially be scaled and made continuous.

Published: 5/30/2018   |   Inventor(s): H Winter, Wei Fan, Vijesh Tanna, Sanket Sabnis
Category(s): Chemicals, Engineering
Genetic Engineering of a Microbial Chassis for Electrosynthesis and Electrofermentation
With rapidly increasing proliferation and declining costs of renewable energy generation, methods of storing excess electricity become increasingly important. One such method was previously patented by Dr. Derek Lovley and Dr. Kelly Nevin. In their patented method, microorganisms use electricity to convert water and carbon dioxide into multi-carbon chemicals and fuels, akin to the reverse operation of a microbial fuel cell. This invention builds upon the inventors’ patent. Here, they created a genetically-modified strain of Geobacter sulfurreducens, whose electrical current consumption rate is more than 10x higher than the wild-type strain, greatly enhancing the conversion process. This new strain also provides a platform for producing a wide variety of high-value carbonaceous products previously not possible through this method.
Published: 5/3/2018   |   Inventor(s): Derek Lovley, Toshiyuki Ueki, Kelly Nevin Lovley
Category(s): Chemicals, Clean Energy, Life Sciences
Flame Retardant Monomers and Crosslinked Polymers
This invention provides flame retardant monomers and polymers. The monomers are unsaturated deoxybenzoin compounds that are inherently fire resistant and can decrease the flammability of unsaturated polymers by crosslinking the polymers.
Published: 5/1/2018   |   Inventor(s): Todd Emrick, E. Bryan Coughlin, Megan Szyndler, Aabid Mir, Justin Timmons
Category(s): Chemicals, Material science, Physical Science
Method for Reducing Sludge Wasting and Enhancing Bio-hydrogen Generation from the Activated Sludge Process
Treatment and disposal of bio-hazardous sludge accounts for 50-60% of the operational costs at a wastewater treatment plant. To treat this sludge, it undergoes a process involving thickening, conditioning, and dewatering, followed by transport to a landfill or incinerator. In addition to high costs, landfilling and incineration are detrimental from a sustainability standpoint.


In this patented invention, a closed, anaerobic, completely stirred tank side stream reactor is added after the outlet of the settling tank at the wastewater treatment plant. Solids retention time in the reactor is short (< 4 days), keeping its size and cost down. The acidic and anaerobic environment of the reactor causes biomass to deflocculate and sludge to hydrolyze, ultimately reducing sludge by 60%. The invention also has the added benefit of producing hydrogen and methane fuel. 

Published: 12/15/2017   |   Inventor(s): Chul Park, Dong Hyun Chon
Category(s): Clean Energy, Environmental, Engineering, Chemicals
Production of Specialty Chemicals with Carbon Dioxide Serving as the Carbon Source
Concerns of resource supply and climate change motivate the shift away from fuels and chemicals derived from fossil fuels towards domestic, sustainable production. The inventors’ patented technology presents a new way of doing this, using microorganisms that are able to take in CO2, water, and electricity and synthesize carbonaceous fuels and chemicals, akin to a reverse microbial fuel cell.


In “microbial electrosynthesis,” a term coined by the inventors, an anode and cathode are connected to a source of electrical power and separated by a permeable membrane. Electron-accepting microorganisms are coated on a cathode, where they reduce CO2 to multi-carbon products, while water is oxidized to oxygen at the anode. For example, the production of acetate would proceed as follows:


Anode: 4H2O --> 8H+ + 8e- + 2O2

Cathode: 2CO2 + 8H+ + 8e- --> CH3COOH + 2H2O

Overall: 2CO2 + 2H2O --> CH3COOH + 2O2


In addition to acetate, production of ethanol, butanol, propanol, formate, and 2-oxobutyrate have been demonstrated.

Published: 12/15/2017   |   Inventor(s): Kelly Nevin Lovley, Derek Lovley
Category(s): Chemicals, Clean Energy, Environmental
Facile synthesis of tin-containing zeolites
Heteroatom containing zeolite catalysts have shown excellent catalytic activity and thermal stability in petrochemical processes as well as for converting biomass into biofuels and high-value chemicals. However, their synthesis is difficult, requiring harsh chemicals and long synthesis times.


This patented technology is several rapid, high-yield synthesis methods for heteroatom containing zeolites, such as Sn-Beta. The method begins with adding zeolite seeds to a solution comprising a heteroatom source and a structure-directing agent. By directly adding the seeds to the solution without calcination or drying, the seeds do not agglomerate and as a result, crystallization time is shortened. To complete catalyst synthesis from the resulting gel, it is then heated to form a solid, filtered, washed, dried, and finally calcined.


Specific methods disclosed in this patent include one as short as 2 days and the first fluorine-free synthesis route. The catalysts were demonstrated to be active for both sugar isomerization and dehydration reactions, necessary in fuel and chemical synthesis.

Published: 12/14/2017   |   Inventor(s): Wei Fan, Chun-Chih Chang, Paul Dornath, Zhuopeng Wang
Category(s): Chemicals, Clean Energy, Engineering
Flame Retardant Monomers and Polymers
This invention provides new flame retardant monomers and polymers made using such and other monomers. The new flame retardant monomers can reduce polymer flammability due to char formation. Upon the incorporation of such monomers into the polymer structure, their additional functional groups or handles impart reactivity to the polymer, enabling the formation of new functional polymeric and composite materials.
Published: 9/14/2016   |   Inventor(s): Todd Emrick, Aabid Mir, Umesh Choudhary
Category(s): Chemicals, Material science, Physical Science
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