Search

Iwao A Teraoka

from Rye, NY
Age ~66
Get Report
Also known as:
Eracka T Iwao
Phone and address:
32 Glen Oaks Dr, Rye, NY 10580
(914) 835-7026
Related to:
Erika R Teraoka, 42Sadae Teraoka, 73
Connected to:
Ross M Teraoka, 69Dale J Terasaki, 38Dean K Terasaki, 70Sam S Terasaki, 100Emi L Terasawa, 47Yuki Terashima, 41Kuniaki Terato, 83Akio Terauchi, 57Sean Terauchi, 38Heidi L Terault, 55

Iwao Teraoka Phones & Addresses

  • 32 Glen Oaks Dr, Rye, NY 10580 (914) 835-7026
  • Harrison, NY
  • Amherst, MA
  • Theresa, WI
  • Westchester, NY
  • 32 Glen Oaks Dr, Rye, NY 10580 (914) 474-8495

Work

Position: Clerical/White Collar

Education

Degree: Graduate or professional degree

Emails

i***a@cs.com

Resumes

Resumes

Iwao Teraoka Photo 1

Professor At Nyu-Poly

View page
Position:
Professor at NYU-Poly
Location:
Brooklyn, New York
Industry:
Higher Education
Work:
NYU-Poly - Brooklyn, NY since Jan 1993
Professor
University of Massachusetts Amherst - Amherst, MA Jul 1990 - Dec 1992
Postdoctoral fellow
IBM - San Jose, CA Jul 1989 - Jul 1990
Visiting Scientist
Education:
東京大学 / The University of Tokyo 1984 - 1986
Ph.D., Applied Physics 東京大学 / The University of Tokyo 1982 - 1984
MS, Applied Physics 東京大学 / The University of Tokyo 1978 - 1982
BS, Applied Physics
Interests:
Whispering gallery mode sensor Photonic crystal defects Liquid chromatography Silica surface

Publications

Isbn (Books And Publications)

Polymer Solutions: An Introduction to Physical Properties

View page
Author

Iwao Teraoka

ISBN #

0471224510

Polymer Solutions: An Introduction to Physical Properties

View page
Author

Iwao Teraoka

ISBN #

0471389293

Polymer Solutions: An Introduction to Physical Properties

View page
Author

Iwao Teraoka

ISBN #

0471460761

Us Patents

Detecting And/Or Measuring A Substance Based On A Resonance Shift Of Photons Orbiting Within A Microsphere

View page
US Patent:
7491491, Feb 17, 2009
Filed:
Mar 12, 2002
Appl. No.:
10/096333
Inventors:
Steven Arnold - New York NY, US
Iwao Teraoka - Rye NY, US
Assignee:
Polytechnic Institute of New York University - Brooklyn NY
International Classification:
C12Q 1/68
US Classification:
435 6
Abstract:
Detecting and/or measuring a substance based on a resonance shift of photons orbiting within a microsphere of a sensor. Since the resonance of the microsphere has a large quality factor, the sensor is extremely sensitive. The sensor includes the microsphere coupled with at least one optical fiber. The surface of the microsphere includes receptors complementary to the substance. The at least one optical fiber can be provided with at least one additional microsphere having a surface free of the receptors. Resonance shifts observed in such an additional microsphere(s) can be attributed to factors unrelated to the presence of the substance. The resonance shift observed in the microsphere with the receptors can be compensated based on the resonance shift of the additional microsphere(s) to remove the influence of these other factors.

Detecting And/Or Measuring A Substance Based On A Resonance Shift Of Photons Orbiting Within A Microsphere

View page
US Patent:
7851173, Dec 14, 2010
Filed:
Jan 7, 2009
Appl. No.:
12/350000
Inventors:
Steven Arnold - New York NY, US
Iwao Teraoka - Rye NY, US
Assignee:
Polytechnic Institute of New York University - Brooklyn NY
International Classification:
G01N 33/00
US Classification:
435 792, 436518
Abstract:
Detecting and/or measuring a substance based on a resonance shift of photons orbiting within a microsphere of a sensor. Since the resonance of the microsphere has a large quality factor, the sensor is extremely sensitive. The sensor includes the microsphere coupled with at least one optical fiber. The surface of the microsphere includes receptors complementary to the substance. The at least one optical fiber can be provided with at least one additional microsphere having a surface free of the receptors. Resonance shifts observed in such an additional microsphere(s) can be attributed to factors unrelated to the presence of the substance. The resonance shift observed in the microsphere with the receptors can be compensated based on the resonance shift of the additional microsphere(s) to remove the influence of these other factors.

Enhancing The Sensitivity Of A Microsphere Sensor

View page
US Patent:
20040137478, Jul 15, 2004
Filed:
Oct 22, 2003
Appl. No.:
10/690979
Inventors:
Stephen Arnold - New York NY, US
Iwao Teraoka - Rye NY, US
Frank Vollmer - New York NY, US
International Classification:
C12Q001/68
G01N033/53
C12M001/34
US Classification:
435/006000, 435/007100, 435/287200
Abstract:
Microsphere sensors (i) having receptors selectively substantially provided at only an equator region, (ii) formed of a relative high IR material, and/or (iii) having a relatively small radius are provided with improved sensitivity. Such a microsphere sensor may be made by selectively treating an equator region of the microsphere forming a small concentrated receptor band on the high sensitivity portion of the microsphere surface. Changing the selected laser frequency applied to the microsphere sensor to a shorter wavelength also improves sensitivity. Physical properties of the microsphere sensor system: index of refraction, laser frequency, and microsphere radius may be adjusted in concert to match the target entity molecule size. These improvements in sensitivity may allow detection and/or identification of unknown target entities based on detectable step shifts observable in light modes due to the adsorption of even a single molecule as small as about 200,000 Da.

Using A Change In One Or More Properties Of Light In One Or More Microspheres For Sensing Chemicals Such As Explosives And Poison Gases

View page
US Patent:
20040196465, Oct 7, 2004
Filed:
Dec 12, 2003
Appl. No.:
10/735247
Inventors:
Stephen Arnold - New York NY, US
Iwao Teraoka - Rye NY, US
Yoshiyuki Okamoto - Fort Lee NJ, US
Frank Vollmer - New York NY, US
International Classification:
G01N021/00
US Classification:
356/432000
Abstract:
Detecting and/or measuring a chemical substance, such as explosives or poison gases, using a change in a property of light passing through a microsphere of a sensor. Since the microsphere has a large quality factor, the sensor is extremely sensitive. The sensor includes the microsphere coupled with at least one optical fiber. The surface of the microsphere includes receptors complementary to the chemical substance.

Perturbation Approach To Resonance Shift Of Whispering Gallery Modes In A Dielectric Microsphere As A Probe Of A Surrounding Medium

View page
US Patent:
20040238744, Dec 2, 2004
Filed:
Jan 15, 2004
Appl. No.:
10/758248
Inventors:
Stephen Arnold - New York NY, US
Iwao Teraoka - Rye NY, US
Frank Vollmer - New York NY, US
International Classification:
G01N021/41
US Classification:
250/341200
Abstract:
A first-order perturbation theory similar to the one widely used in quantum mechanics is developed for transverse-electric and transverse-magnetic photonic resonance modes in a dielectric microsphere. General formulas for the resonance frequency shifts in response to a small change in the exterior refractive index and its radial profile are derived. The formulas are applied to two sensor applications of the microsphere to probe the medium in which the sphere is immersed: a refractive index detector; and a refractive index profile sensor.

Enhanced Sensitivity Of A Whispering Gallery Mode Microsphere Sensor By A High-Refractive Index Surface Layer

View page
US Patent:
20070114477, May 24, 2007
Filed:
Nov 17, 2006
Appl. No.:
11/561087
Inventors:
Iwao Teraoka - Rye NY, US
Stephen Arnold - New York NY, US
International Classification:
G03C 5/16
G01N 23/04
US Classification:
250580000
Abstract:
The use of whispering gallery mode (WGM) evanescent waves to detect adsorption of molecules to the surface of microsphere sensors and more particularly to the utilization of a high refractive index surface layer to increase the sensitivity thereof. The present invention examines the sensor capability of WGM in a dielectric sphere coated with a thin uniform dielectric layer of a high refractive index. Among the utilities of such a modified resonator for the sensing are to have an evanescent field of a different penetration depth without using a non-silica based microsphere or changing the laser wavelength, to further enhance the sensitivity by drawing the optical field of WGM into the coating layer, and to realize the same relative shifts for WGM of different radial modes, thus eliminating ambiguities in the measurement of a refractive index change in the surrounding medium.

Dna Or Rna Detection And/Or Quantification Using Spectroscopic Shifts Or Two Or More Optical Cavities

View page
US Patent:
20090093375, Apr 9, 2009
Filed:
Jan 30, 2004
Appl. No.:
10/768977
Inventors:
Stephen Arnold - New York NY, US
Iwao Teraoka - Rye NY, US
Frank Vollmer - New York NY, US
International Classification:
C40B 30/10
C40B 60/12
US Classification:
506 12, 506 39
Abstract:
A spectroscopic technique for high-sensitivity, label free DNA quantification uses a shift in an optical resonance (whispering gallery mode, WGM) excited in a micron-sized optical cavity (e.g., a silica sphere) to detect and measure nucleic acids. The surface of the silica sphere is chemically modified with oligonucleotides. Hybridization to the target DNA leads to a red-shift of the optical resonance wavelength. The sensitivity of this resonance technique is higher than most optical single-pass devices such as surface plasmon resonance biosensors. Each microsphere can be identified by its unique resonance wavelength. Specific, multiplexed DNA detection may be provided by using two or more microspheres. The multiplexed signal from two or more microspheres illustrates that a single nucleotide mismatch in an 11-mer oligonucleotide can be discriminated with a high signal-to-noise of 54. This all-photonic WGM biosensor can be integrated on a chip, such as a semiconductor chip, which makes it an easy to manufacture, analytic component for a portable, robust lab-on-a-chip device.

High Osmotic Pressure Chromatography

View page
US Patent:
55870821, Dec 24, 1996
Filed:
Jun 7, 1995
Appl. No.:
8/480238
Inventors:
Iwao Teraoka - Harrison NY
Min Luo - New York NY
International Classification:
B01D 1508
US Classification:
210635
Abstract:
New separation methods termed Enhanced Partitioning Fractionation (EPF) and High Osmotic Pressure Chromatography (HOPC) are described. The HOPC method involves passing large amounts of concentrated polymer solutions over porous material in a packed column. The concentration is high enough to allow for polymer chain overlap and to generate high osmotic pressures with respect to the porous material. The resulting high osmotic pressure causes increased separation of the polymer sample based on molecular size. The higher molecular weight components are concentrated in the initial fractions of eluent collected, whereas lower molecular weight components are concentrated in later fractions. The molecular weight of each fraction decreases with each successive fraction of eluent. The method is applicable to a wide variety of polymers and provides significant performance advantages to conventional preparative scale GPC.
Control profile
Iwao A Teraoka from Rye, NY, age ~66 Get Report