Abstract: Defined nanoparticle cluster arrays (NCAs) with total lateral dimensions of up to 25.4 ?m by 25.4 ?m have been fabricated on top of a 10 nm thin gold film using template guided self-assembly. This approach provides precise control of the structural parameters in the arrays allowing a systematic variation of the average number of nanoparticles in the clusters (n) and the edge to edge separation (?) between 1<n<20 and 50 nm???1000 nm, respectively. Investigations of the Rayleigh scattering spectra and surface enhanced Raman scattering (SERS) signal intensities as a function of n and ? reveal direct near-field coupling between the particles within individual clusters, whose strength increases with the cluster size (n) until it saturates at around n=4. Our analysis shows that strong near-field interactions between individual clusters significantly affects the SERS signal enhancement for edge-to-edge separations ?<200 nm.
Abstract: An apparatus for detecting electromagnetic radiation within a target frequency range is provided. The apparatus includes a substrate and one or more resonator structures disposed on the substrate. The substrate can be a dielectric or semiconductor material. Each of the one or more resonator structures has at least one dimension that is less than the wavelength of target electromagnetic radiation within the target frequency range, and each of the resonator structures includes at least two conductive structures separated by a spacing. Charge carriers are induced in the substrate near the spacing when the resonator structures are exposed to the target electromagnetic radiation. A measure of the change in conductivity of the substrate due to the induced charge carriers provides an indication of the presence of the target electromagnetic radiation.
Type:
Grant
Filed:
July 2, 2013
Date of Patent:
April 7, 2015
Assignees:
Massachusettes Institute of Technology, Trustees of Boston University
Inventors:
Harold Y. Hwang, Mengkun Liu, Richard D. Averitt, Keith A. Nelson, Aaron Sternbach, Kebin Fan
Abstract: Disclosed are methods of treating viral disorders via the administration of an inducing agent and an anti-viral agent. In one embodiment, the inducing agent and the anti-viral agent are administered for about five days, and the anti-viral agent is subsequently administered without the inducing agent for an additional period of about sixteen days for a total cycle of about 21 days.
Abstract: Semiconductor structures involving multiple quantum wells provide increased efficiency of UV and visible light emitting diodes (LEDs) and other emitter devices, particularly at high driving current. LEDs made with the new designs have reduced efficiency droop under high current injection and increased overall external quantum efficiency. The active region of the devices includes separation layers configured between the well layers, the one or more separation regions being configured to have a first mode to act as one or more barrier regions separating a plurality of carriers in a quantum confined mode in each of the quantum wells being provided on each side of the one or more separation layers and a second mode to cause spreading of the plurality of carriers across each of the quantum wells to increase an overlap integral of all of the plurality of carriers. The devices and methods of the invention provide improved efficiency for solid state lighting, including high efficiency ultraviolet LEDs.
Abstract: Described herein are methods and compositions related to the discovery that the Follistatin-like 1 protein (Fstl-1) has metabolic and cardioprotective effects in vivo. Fstl-1 and portions and derivatives or variants thereof can be used to treat or prevent metabolic diseases or disorders and to treat or prevent cardiac damage caused by interrupted cardiac muscle blood supply.
Abstract: Provided herein are methods of reducing and/or inhibiting A deposition or A plaque formation in the brain, and/or inhibiting or slowing the progression of disorders mediated by A deposition or A plaque formation using therapeutically effective amounts of amylin agonist compounds or pharmaceutical compositions comprising amylin agonist compounds. As demonstrated herein, amylin and amylin analog administration improves cognition, including memory. Also provided herein are non-invasive, inexpensive amylin or amylin analog challenge assays and methods and kits thereof for detecting the presence of plaques comprising A? peptide in the brain, and for identifying individuals at increased risk for Alzheimer's disease (AD) and/or amnestic mild cognitive impairment.
Abstract: The present invention is generally related to engineered bacteriophages expressing antimicrobial peptides or lytic enzymes or fragments thereof for targeting a broad spectrum of bacterial hosts, and for the long-term suppression of bacterial phage resistance for reducing bacterial infections. In some embodiments, bacteriophages express antimicrobial peptides or antimicrobial polypeptides (e.g. phage lytic enzymes) which are secreted from the host bacteria, or alternatively released upon lysis of the bacterial host cell. Aspects of the present invention also relate to the use of the engineered bacteriophages for the reduction of bacterial infections, both in a subject or for bioremediation purposes, in clinical settings and wound healing.
Type:
Application
Filed:
September 2, 2011
Publication date:
February 19, 2015
Applicants:
Massachusetts Institute of Technology, Trustees of Boston University
Inventors:
James J. Collins, Michael Koeris, Timothy Kuan-Ta Lu, Gregory Stephanopoulos, Christopher Yoon
Abstract: The present application is directed to the identification of mutations and/or polymorphisms in the Dual Endothelin-1/Angiotensin II Receptor (Dear) that indicate susceptibility to, or show current affliction with, hypertension. Additionally, the present invention discloses methods for the modulation of angiogenesis via the regulation of Dear.
Type:
Grant
Filed:
January 27, 2014
Date of Patent:
February 17, 2015
Assignee:
Trustees of Boston University
Inventors:
Victoria L. M. Herrera, Nelson Ruiz-Opazo
Abstract: Provided herein are 3-dimensional drug-eluting materials comprising biodegradable polymer(s), one or more bioactive agents and entrapped air. Various embodiments of the methods and compositions described herein are based, in part, on the discovery of hydrophobic doping agents that can be used in the manufacture of polymeric drug delivery compositions that permit the encapsulation of air, thereby permitting tunable drug release via controlled air removal. Such compositions are particularly useful for delivering therapeutically effective doses of one or more bioactive agents to a subject over an extended period of time (e.g., days, weeks, or months).
Type:
Application
Filed:
July 19, 2012
Publication date:
February 5, 2015
Applicant:
TRUSTEES OF BOSTON UNIVERSITY ET AL
Inventors:
Mark W. Grinstaff, Jesse Wolinsky, Stefan Yohe, Jonah Andrew Kaplan, Eric John Falde, Joseph Steven Hersey
Abstract: The methods and compositions described herein are based, in part, on the discovery of a polypeptide of soluble CD23 (sCD23) that binds and sequesters IgE. Thus, the sCD23 peptides, polypeptides and derivatives described herein are useful for treating conditions or disorders involving increased IgE levels such as e.g., allergy, anaphylaxis, inflammation, lymphoma, and certain cancers.
Type:
Grant
Filed:
December 1, 2010
Date of Patent:
February 3, 2015
Assignees:
Trustees of Boston University, Boston Medical Center Corporation
Abstract: The present invention relates generally to the field of high content screening of particles, e.g., cells in a flow cytometric system. In particular, the present invention relates to devices, methods and systems to obtain line-scan images of particles, e.g., cells, of a plurality of different samples simultaneously, where the line-scan images can be used to identify cells based on at least one of a variety of phenotypic characteristics such as shape, asymmetry, and intracellular information for cell sorting and selection. In some embodiments, the line-scan images are obtained as the particles, e.g., cells, in a plurality of different samples flow through a plurality of microchannels, reducing the need and time for focusing of the image detection system. In some embodiments, the laser spot size has a small spatial resolution for rapid capturing of images of cells. In some embodiments, the laser spot size has a larger spatial resolution for imaging of larger particles or cells, e.g., rare cells in a sample.
Abstract: The present invention generally relates to compositions containing chemical compounds and compositions and pharmaceutical formulations of the compounds which increase the expression of total hemoglobin or globin protein such as embryonic or fetal globin, or the proliferation of hemoglobin expressing and other blood cells. These compositions can be used to treat or prevent the symptoms associated with anemia, sickle cell diseases, thalassemia, and other blood cell deficiencies and blood disorders. The invention also relates to methods for administering these compositions to subjects and for use as medical aids for the treatment and prevention of blood and other disorders.
Abstract: A method for the storage of red blood cells provides for mixing an additive solution with packed red blood cells to create a suspension of red blood cells. The method further provides for reducing the oxygen in the suspension of red blood cells; and storing the suspension of red blood cells under oxygen-depleted storage.
Abstract: Various aspects and embodiments of the present disclosure are directed to methods and compositions for functionalizing endogenous bacteria in vivo. The methods include delivering to endogenous bacterial cells a recombinant bacteriophage or phagemid that is engineered to contain at least one genetic circuit.
Type:
Application
Filed:
July 1, 2014
Publication date:
January 1, 2015
Applicants:
Massachusetts Institute of Technology, Trustees of Boston University
Inventors:
Timothy Kuan-Ta Lu, Robert James Citorik, James Collins, Russell-John Krom
Abstract: A neuro-stimulation system employs a includes a stimulator which may include electrode devices and/or vibration elements. A controller may be employed to drive the stimulating elements with an electrical signal. In response to the electrical signal, the stimulating elements deliver electrical and/or mechanical stimulation to the body part. The stimulation may be an aperiodic stimulation and/or may be a subthreshold stimulation. In one embodiment, the stimulator is disposable and the processor determines usage of the stimulator and ensures that the stimulator is limited to a certain amount of use. Neuro-stimulation systems may be applied to sensory cells of body parts during movement of the body parts to induce neuroplastic changes. Such movement may involve a variety of therapeutic applications, e.g. in stroke patient therapy.
Type:
Application
Filed:
April 10, 2014
Publication date:
December 11, 2014
Applicant:
TRUSTEES OF BOSTON UNIVERSITY
Inventors:
Jason D. Harry, James B. Niemi, Scott Kellogg, Susan D'Andrea
Abstract: To improve network reliability and management in today's high-speed communication networks, we propose an intelligent system using adaptive statistical approaches. The system learns the normal behavior of the network. Deviations from the norm are detected and the information is combined in the probabilistic framework of a Bayesian network. The proposed system is thereby able to detect unknown or unseen faults. As demonstrated on real network data, this method can detect abnormal behavior before a fault actually occurs, giving the network management system (human or automated) the ability to avoid a potentially serious problem.
Abstract: A partitioned aperture wavefront imaging system includes an imaging system comprising a partitioned aperture lens array positioned at the aperture plane or Fourier plane between the entrance plane and camera plane of an imaging system. The partitioned aperture lens array can include 2 or more off-axis lenses symmetrically distributed about an optical axis, and adapted to produce simultaneously at the camera plane at least two images of an object, or intermediate image of an object, presented at the entrance plane. Preferably, the partitioned aperture lens array includes from 3 to 5 off-axis lenses and produces 3 to 5 images at the camera plane from which phase and amplitude information about the light field can be determined. The partitioned aperture wavefront imaging system provides enough information about the light field presented at the entrance plane to enable reconstruction of the light field at other planes relative to the entrance plane.
Type:
Application
Filed:
July 24, 2013
Publication date:
September 18, 2014
Applicant:
TRUSTEES OF BOSTON UNIVERSITY
Inventors:
Jerome Charles Mertz, Kengyeh Ken Chu, Ashwin Parthasarathy
Abstract: Described herein is a method and a device for expediting delivery of an agent to a damaged bacterial cell. In one embodiment, the methods and devices are useful for screening candidate antibiotics. In another embodiment, the methods and devices described herein are used to determine susceptibility of bacteria to an antibiotic. The methods also provide a method for determining an appropriate antibiotic to treat an individual having a bacterial infection.
Type:
Application
Filed:
May 29, 2014
Publication date:
September 18, 2014
Applicants:
Trustees of Boston University, Fraunhofer USA, INC.
Inventors:
Alexis Sauer-Budge, Andre Sharon, Maxim Kalashnikov, Holger Wirz
Abstract: Provided herein are polymeric particles and compounds and processes that can be used to prepare polymer-based particles and methods of using those particles to localize or concentrate a subsequently delivered agent to an in vivo site.
Type:
Application
Filed:
October 17, 2012
Publication date:
September 18, 2014
Applicant:
TRUSTEES OF BOSTON UNIVERSITY
Inventors:
Mark W. Grinstaff, Aaron H. Colby, Yolonda Colson
Abstract: The compositions and methods of the invention described herein provide treatments against Ebola virus infection by expressing gene(s) from the Ivory Coast ebolavirus (ICEBOV) species in a recombinant viral vector.
Type:
Application
Filed:
April 2, 2014
Publication date:
September 11, 2014
Applicants:
BOSTON MEDICAL CENTER CORPORATION, TRUSTEES OF BOSTON UNIVERSITY