Search Results - Chemistry

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Graded index single crystal (GRISC) active waveguide in glass
TechnologyThe invention introduces a method for fabricating ferroelectric crystallines for use as low loss optical waveguides with additional active functionality compared to amorphous/glass waveguides.It provides low losses by confining the light signal tightly in the crystal core, away from the rough crystal-glassinterface that is often responsib...
Published: 2/21/2017   |   Inventor(s): Keith Veenhuizen, Volkmar Dierolf, Himanshu Jain
Category(s): Chemical, Chemistry
In-situ, self-adjusting stability control of methane-producing anaerobic biological reactors through novel use of ion exchange fibers
TechnologyIn-Situ, Self-Adjusting Stability Control of Methane -ProducingAnaerobic Biological Reactors Through Novel Use ofIon Exchange Fibers - An application of ion exchange fibers that enables long term, stable MPABR use with minimal intervention and supervision.The invention is a novel process that stabilizes pH Methane-ProducingAnaerobic Biolo...
Published: 2/21/2017   |   Inventor(s): Arup Sengupta, Derick Brown, Yu Tian
Category(s): Chemical, Biomaterials, Chemistry
Detection of vancomycin resistance in Enterococcus faecium and Enterococcus faecalis via cell wall
Technology The technology reveals cell wall remodeling dynamics with the innovative design of peptide molecules that mimic the structures of enzymes that are directly involved in peptidoglycan biosynthesis and direct indicators of vancomycin resistance enterococcus (VRE). The primary mechanism of action for vancomycin is to prevent cell wall synthe...
Published: 2/21/2017   |   Inventor(s): Marcos Pires
Category(s): Biology, Chemical, Chemicals & Materials Science, Chemistry, Life Sciences
Taming Antibiotics
TechnologyAmphotericin B (AmpB) is a potent antifungal drug but is also highly toxic tomammals. The specificity of its cell killing depends, significantly, on its monomervs. the aggregate state. Specifically, AmpB aggregates tend to rupture membranesindiscriminately, like detergents, while the corresponding monomers sequesterergosterol (a sterol fo...
Published: 12/23/2015   |   Inventor(s): Steven Regen
Category(s): Chemistry, Biomaterials
A Method to Obtain Vertical Near-field Interaction in Scattering Type Near-field Optical Microscopy
SUMMARY While a conventional microscope (~250 nm optical resolution) is not suitable for the nano-world structures imaging (one millionth of a millimeter), Scanning near-field optical microscopy (SNOM) is capable of a super-resolution (~10 nm) imaging and surface topology, providing a spectroscopic characterization of nano-structures in a routine f...
Published: 8/24/2015   |   Inventor(s): Xiaoji Xu, Le Wang
Category(s): Materials and Nanotechnology, Chemistry
Forward Osmosis separation processes using Magnesium Oxide and Carbon Dioxide
SUMMARYLehigh University has developed a forward osmosis separation processes using magnesium oxide and carbon dioxide. The invention can purify water through a Forward Osmosis process from both surface water and saline water. The invention can concentrate waste from a dilute waste stream. In various applications it may be desirable to concentrate...
Published: 5/20/2014   |   Inventor(s): Arup Sengupta, Robert Creighton, Ryan Smith
Keywords(s): Water Treatment
Category(s): Chemistry, Chemical, Gas/Liquid Treatment
New Reagents for C4F8 Transfer that Eliminates the Use of Hazardous C2F4
SUMMARYLehigh University has developed new (perfluoroalkyl)metallacyclic zinc reagents that could be used in applications to transfer sequential difluoromethylene groups to organic, inorganic, and organometallic substrates. The accompanying methods to prepare the new zinc reagents have also been developed by the university. Known synthetic routes ...
Published: 5/20/2014   |   Inventor(s): David Vicic
Category(s): Chemical, Chemicals & Materials Science, Chemistry
Brackish Water Desalination Using a Mixed Bed of Anion Exchangers to Prevent Sulfate Scaling Without External Addition of Chemicals
SUMMARYLehigh University has developed a reversible ion exchange-desalination (RIX-D) process. Desalination is a common method of salt-water purification, which is practiced throughout the world. The two products of salt water purification drinking water and leftover salty brine called concentrate. Unfortunately, the amount of drinking water that c...
Published: 5/20/2014   |   Inventor(s): Arup Sengupta, Ryan Smith
Category(s): Gas/Liquid Treatment, Chemistry, Chemical
Use of Unnatural D-amino Acids to Recruit Endogenous Antibodies as a Novel Antibacterial Therapy
SUMMARYLehigh University has developed an unnatural synthetic amino acid (D-dinitrophenyllysine) as a novel single-agent anti-bacterial (gram positive) agent. It has been recently discovered (2009) that almost every straing of bacteria tested (both gram positive and negative), including many that are pathogenic, will incorporate D-amino acids (unna...
Published: 5/19/2014   |   Inventor(s): Marcos Pires
Category(s): Biology, Chemistry