California Institute of Technology

Insilixa, Inc.

University of Texas System

International Business Machines Corporation

Advanced Micro Devices Corporation

Leland Stanford Junior University

Robert Boschgmbh

Arjang Hassibi

Arun Manickam

Babak Hassibi

Rituraj Singh

Haris Vikalo

Kshama Jirage

Ali Khakifirooz

Bahman Hekmatshoartabari

Davood Shahrjerdi

Yang Liu

Jose Luis Riechmann

Nader Pourmand

Golam Rasul Chowdhury

Kaveh Milaninia

Andrea Cuppoletti

Lei Pei

Kangguo Cheng

Dharmendra S Modha

Christoph Lang

Sam Kavusi

Robert G Kuimelis

Byungchul Jang

Jose Luis R Riechmann

The present disclosure provides methods and compositions for surface functionalization of solid substrates. The compositions include functionalized silanes and nucleic acid constructs which may react to immobilize the nucleic acid constructs on the surface on the solid substrate. The disclosure also provides methods for immobilization of silanes and nucleic acid constructs on the surface of the substrate.

Methods and compositions for surface functionalization of optical semiconductor-integrated biochips

A biosensor pixel for measuring current that flows through the electrode surface in response to electrochemical interactions and a biosensor array architecture that includes such biosensor pixels. The biosensor pixel includes an electrode transducer configured to measure a current generated by electrochemical interactions occurring at a recognition layer placed directly on top of it in response to an electrical voltage placed across an electrode transducer-electrolyte interface. The biosensor pixel further includes a trans-impedance amplifier connected to the electrode transducer, where the trans-impedance amplifier is configured to convert the current into a voltage signal as the electrochemical interactions occur. Additionally, the biosensor pixel includes a 1-bit comparator coupled to the trans-impedance amplifier and a 1-bit digital-to-analog converter coupled to the 1-bit comparator, where the 1-bit digital-to-analog converter injects different levels of charge into an input of the trans-impedance amplifier at each cycle based on an output of the 1-bit comparator.

Integrated electro-analytical biosensor array

This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.

Multiplex Q-PCR arrays

The present disclosure provides methods, devices and systems for detecting a presence of a nucleic acid molecule having a nucleic acid sequence. Detection of cyclic single base extension can be used to detect a nucleic acid molecule hybridized to a probe and detect a presence of a nucleic acid. The methods disclosed herein can detect a nucleic acid molecule present in a nucleic acid sample at low concentrations and in the presence of background nucleic acids having high sequence similarity.

Nucleic acid sequence identification using solid-phase cyclic single base extension

This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample.

The present disclosure provides methods, apparatus and systems for time-gated fluorescent-based detection. Time-based fluorescence analysis can be used in certain biochemical assays by measuring the emitted photon flux from fluorophores after an individual excitation pulse.

Methods and systems for time-gated fluorescent-based detection

This present disclosure provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The present disclosure also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.

Methods for detecting target analytes

Methods for detecting analytes

A method and device for performing DNA sequencing and extracting structural information from unknown nucleic acid strands. The device includes a microwell structure, where identical DNA strands are immobilized within the microwell structure on a surface of a micro-bead, an active electrode or a porous polymer. The device further includes a CMOS-integrated semiconductor integrated circuit, where the CMOS-integrated semiconductor integrated circuit includes metal layers on a silicon substrate, where the metal layers form an active electrode biosensor. In addition, a sensing electrode is formed by creating openings in a passivation layer of the CMOS-integrated semiconductor integrated circuit to hold a single bead, on which the DNA strands are immobilized.

Active-electrode integrated biosensor array and methods for use thereof

The present disclosure provides methods and devices for simultaneous identification of a plurality of target nucleic acid sequences in a single sample chamber that includes an addressable array of nucleic acid probes attached to a solid surface. Addressable signals can be generated and measured, in real-time, upon hybridization of target sequences at the individual probe locations within the array while the temperature of the system is varied. Such generated signals, as a function temperature, can then be used to compute the properties of nucleic acid hybridization at each addressable location which is ultimately utilized to estimate the sequence of the target nucleic acids. In particular, an integrated semiconductor biosensor array device can be used to measure the addressable signals.

Multiplexed analysis of nucleic acid hybridization thermodynamics using integrated arrays

The present disclosure provides methods, devices and systems that enable simultaneous multiplexing amplification reaction and real-time detection in a single reaction chamber.

Methods and systems for multiplex quantitative nucleic acid amplification

A biosensor array, system and method for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.

Growing community of inventors

Austin, TX, United States of America

Arjang Hassibi