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Removal Process of Negatively Charged Impurities using Metal-Cellulose Fiber Composite

Using a stable, predominantly positively charged, composite structure to separate negatively charged impurities from water Background: The process of removing negatively charged impurities such as fluoride, nitrate, nitrite, phosphate, sulfate, and other ions from water is necessary in order to effectively make cleaner water. There have been multiple...
Published: 7/7/2020   |   Inventor(s): Benjamin Hsiao, Sunil Sharma, Priyanka Sharma, Ken Johnson
Keywords(s): Technology
Category(s): Environment, Nanotechnology, Campus > Stony Brook University

Removal of Toxic Impurities via Metal Oxide Nanocrystals and a Cellulose Substrate

Using positively charged metal oxide nanocrystals anchored to a cellulose substrate to extract negatively charged impurities from water Background: The process of removing negatively charged impurities such as fluoride, nitrate, nitrite, phosphate, sulfate, and other ions from water is necessary in order to effectively make cleaner water. There have...
Published: 7/7/2020   |   Inventor(s): Benjamin Hsiao, Sunil Sharma, Priyanka Sharma
Keywords(s): Technology
Category(s): Environment, Nanotechnology, Campus > Stony Brook University

Nanofibrous Materials for Heavy Metal Absorption

Water filtration membranes with polysaccharide fibers that allow for binding of heavy metal ions Background: Agriculture and manufacturing methods have caused large-scale heavy metal ion (lead, arsenic, mercury, etc.) pollution. This is a major public safety issue for drinking water, since these pollutants can contaminate rivers and lakes. Public...
Published: 7/7/2020   |   Inventor(s): Benjamin Chu, Benjamin Hsiao, Robert Grubbs, Rui Yang
Keywords(s): Technology
Category(s): Material and Composites, Nanotechnology, Campus > Stony Brook University

Nitrogen Removal and Nitrogen Salts Recovery using Carboxylated Cellulose Extracted by Nitro-Oxidation Method

Economical, efficient, and quick process to remove nitrogen impurities and recover ammonium salts from wastewater Background: A major challenge for wastewater treatment plants is to find processes that effectively, quickly, and economically remove contaminants/impurities from waste water. This obstacle has steadily become increasingly difficult as...
Published: 7/7/2020   |   Inventor(s): Benjamin Hsiao, Priyanka Sharma, Sunil Sharma, Ken Johnson
Keywords(s):  
Category(s): Environment, Nanotechnology, Campus > Stony Brook University

Surface Coating on Nanofibrous Scaffolds by Interfacial Polymerization for Ultrafiltration and Desalination Applications.

A fibrous support comprising nanofibers for increased flux rates and reduced fouling rates in filtration Background: There is an increased need for filtration methods for obtaining fresh water due to a depleting supply. Typically, technologies such as nanofiltration, ultrafiltration, and reverse osmosis have been used to treat water. Conventional...
Published: 7/6/2020   |   Inventor(s): Benjamin Chu, Benjamin Hsiao, Kyunghwan Yoon
Keywords(s):  
Category(s): Nanotechnology, Campus > Stony Brook University

High Flux Ultrafiltration and Nanofiltration Nanofibrious Membranes Containing Cellulose Coating by Ionic Liquids

An improved, cost-effective, and non-toxic separation membrane for oil/water emulsions and several fluid separation systems Background: Conventional composite membranes currently run into the issue of pore blockage when soaked in amine solutions. The clogged pores create increased coating thickness, which decreases the flux rate. Cellulose is being...
Published: 7/6/2020   |   Inventor(s): Benjamin Chu, Benjamin Hsiao, Hongyang Ma
Keywords(s):  
Category(s): Nanotechnology, Campus > Stony Brook University, Environment

Ultra-Nanofibers for Air and Water Filtration

This technology is a membrane of polysaccharide nanofibers and an electrospun substrate, with applications in water filtration Background: Using cellulose nanofibers for water filtration can be advantageous due to the functionality of their surfaces; they can be adjusted to guide water flow inside water channels or to selectively alter the adsorptive...
Published: 7/6/2020   |   Inventor(s): Benjamin Chu, Benjamin Hsiao, Hongyang Ma
Keywords(s): Computers or Electronics
Category(s): Environment, Campus > Stony Brook University

High-flux thin-film nanocomposite reverse osmosis membrane for desalination

Use of nanofiber composites to create a higher filtration rate in reverse osmosis for energy efficient separation Background: Reverse osmosis (RO) is one of the most energy efficient separation technologies to remove salt ions from brackish water or seawater. Conventional RO membranes possess a thin film composite (TFC) structure, containing an ultra-thin...
Published: 7/6/2020   |   Inventor(s): Benjamin Hsiao, Hongyang Ma, Kai Liu
Keywords(s):  
Category(s): Nanotechnology, Campus > Stony Brook University, Material and Composites

A Nanocomposite Scaffold Consisting of Functionalized Gold Particles and Nanofibrous Membranes for Fabrication of Flexible Sensors

Novel nanoparticle sensor with applications in sweat detection for medical monitoring. Background: Perspiration contains useful medical information on physical conditions for those living in environments with high temperatures, or for those who engage in physical activity for extended periods of time. Because of this, there has been an increase in...
Published: 7/6/2020   |   Inventor(s): Benjamin Hsiao, Chuan-Jian Zhong, Mark Poliks
Keywords(s):  
Category(s): Environment, Material and Composites, Nanotechnology, Campus > Stony Brook University

High Flux and Low Pressure Drop Nanofibrous Microfiltration Membranes for Removal of Bacteria and Viruses

A novel application of composite nanofibers for the creation of high performance water filters. Background: Waters contaminated with bacteria, viruses, and toxic heavy metal ions are responsible for up to 1.8 million deaths each year. Although methods such as ultra-filtration and reverse osmosis have been discovered to remove viruses, these methods...
Published: 7/6/2020   |   Inventor(s): Benjamin Chu, Benjamin Hsiao, Hongyang Ma, Ran Wang
Keywords(s):  
Category(s): Environment, Campus > Stony Brook University
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