J. Bearinger - Academia.edu (original) (raw)
Papers by J. Bearinger
This month's issue has the following articles: (1) Game-Changing Science in the National Inte... more This month's issue has the following articles: (1) Game-Changing Science in the National Interest - Commentary by Tomas Diaz de la Rubia; (2) Preventing Close Encounters of the Orbiting Kind - The Testbed Environment for Space Situational Awareness is improving capabilities for monitoring and detecting threats to space operations; (3) A CAT Scanner for Nuclear Weapon Components - A new x-ray system images nuclear weapon components in three dimensions, promising unprecedented resolution and clarity; (4) Mass-Producing Positrons - Scientists reveal a new method for yielding a greater density of positrons at a much faster rate inside a laboratory setting; and (5) The Next Generation of Medical Diagnostic Devices - Portable medical diagnostic devices using ultrawideband technology help first responders evaluate injuries in emergency situations and could improve overall health care.
Sensors and Actuators B: Chemical, 2010
To examine chemically robust thin conjugated polymer films for use as optical and conductometric ... more To examine chemically robust thin conjugated polymer films for use as optical and conductometric sensors, we graft polythiophene and two alkyl-based derivatives to optically transparent substrates. Though structurally contrasting to other film deposition techniques, grafted polythiophene films preserve their documented absorption, luminescence and electrical properties. Photoluminescence intensities are sensitive to trace amounts of iron and iodine in solution with reasonable Stern-Volmer constants and downward sloping Stern-Volmer plots characteristic to thin-film sensors. Rising conductivities indicate chemical doping is responsible for photoluminescence quenching. We vary reaction times and solvents to optimize desired properties and produce robust polythiophene films, verified by X-ray photoemission spectroscopy, that are uniform across the substrate with thicknesses ranging from 20 to 200 nm and controllable levels of surface roughness. Due to steric effects, polythiophene and poly(3-methylthiophene) films exhibit the highest conductivities while poly(3-hexylthiophene) films exhibit greater photoluminescence efficiencies. These platforms show promise as thin films for in-solution sensing.
This month's issue has the following articles: (1) Innovative Materials Rise to the Radiatio... more This month's issue has the following articles: (1) Innovative Materials Rise to the Radiation Challenge - Commentary by Bruce Warner; (2) The Hunt for Better Radiation Detection - New materials will help radiation detectors pick up weak signals and accurately identify illicit radioactive sources; (3) Time-Critical Technology Identifies Deadly Bloodborne Pathogens - A portable device can simultaneously distinguish up to five bloodborne pathogens in just minutes; (4) Defending Computer Networks against Attack - A Laboratory effort takes a new approach to detecting increasingly sophisticated cyber attacks; and (5) Imaging Cargo's Inner Secrets - Livermore-University of California collaborators are modeling a new radiographic technique for identifying nuclear materials concealed inside cargo containers.
The burgeoning field of nanotechnology opens windows between science and art. Exploration of this... more The burgeoning field of nanotechnology opens windows between science and art. Exploration of this interplay encourages interaction between scientists, artists and educators alike. The image below serves as an example of the fertile ground for exchange. The substrate that this image captures is made of silicon, the material from which computer chips are made. A thin ({approx}1 nm thick) chemical coating was applied homogeneously to the silicon. Specific regions of the coating, 600 nm wide (approximately 150 times smaller than the diameter of a human hair), were then locally removed from the silicon via photocatalytic nanolithography (PCNL(Bearinger, Hiddessen et al. 2005)). PCNL engages light, such as from a light emitting diode or an ultraviolet source, to activate molecules that are attached to a transparent mask above the silicon substrate. These molecules can be compounds similar to chlorophyll, the photoactive material that aids plants in photosynthesis, or may be semiconductor ...
... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Pu... more ... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Purdon, P. O'Dell, JP Bearinger, GA Keating, A. Noy, M. Verce ... W-7405-Eng-48. William J. Smith1,Adam H. Love1, Carolyn J. Koester1, J. Garfield Purdon3, Philip O'Dell2, ...
This months issue has the following articles: (1) Science Translated for the Greater Good--Commen... more This months issue has the following articles: (1) Science Translated for the Greater Good--Commentary by Steven D. Liedle; (2) The New Face of Industrial Partnerships--An entrepreneurial spirit is blossoming at Lawrence Livermore; (3) Monitoring a Nuclear Weapon from the Inside--Livermore researchers are developing tiny sensors to warn of detrimental chemical and physical changes inside nuclear warheads; (4) Simulating the Biomolecular Structure of Nanometer-Size Particles--Grand Challenge simulations reveal the size and structure of nanolipoprotein particles used to study membrane proteins; and (5) Antineutrino Detectors Improve Reactor Safeguards--Antineutrino detectors track the consumption and production of fissile materials inside nuclear reactors.
This month's issue has the following articles: (1) Award-Winning Collaborations Provide Solut... more This month's issue has the following articles: (1) Award-Winning Collaborations Provide Solutions--Commentary by Steven D. Liedle; (2) Light-Speed Spectral Analysis of a Laser Pulse--An optical device inspects and stops potentially damaging laser pulses; (3) Capturing Waveforms in a Quadrillionth of a Second--The femtoscope, a time microscope, improves the temporal resolution and dynamic range of conventional recording instruments; (4) Gamma-Ray Spectroscopy in the Palm of Your Hand--A miniature gamma-ray spectrometer provides increased resolution at a reduced cost; (5) Building Fusion Targets with Precision Robotics--A robotic system assembles tiny fusion targets with nanometer precision; (6) ROSE: Making Compiler Technology More Accessible--An open-source software infrastructure makes powerful compiler techniques available to all programmers; (7) Restoring Sight to the Blind with an Artificial Retina--A retinal prosthesis could restore vision to people suffering from eye diseases; (8) Eradicating the Aftermath of War--A remotely operated system precisely locates buried land mines; (9) Compact Alignment for Diagnostic Laser Beams--A smaller, less expensive device aligns diagnostic laser beams onto targets; and (10) Securing Radiological Sources in Africa--Livermore and other national laboratories are helping African countries secure their nuclear materials.
This month's issue has the following articles: (1) Protecting Our Military Forces--Commentary... more This month's issue has the following articles: (1) Protecting Our Military Forces--Commentary by John C. Doesburg; (2) Sniffing the Air with an Electronic Nose--A Livermore-designed minuscule sensor could sniff the air to warn of toxic chemicals in manufacturing plants, on city streets, or during battle; (3) Simulations Explain High-Energy-Density Experiments--A 'grand challenge' project on Livermore's Atlas supercomputer reveals the physics of high-energy-density experiments; (4) Seeing Condensed Matter in a New Light--New x-ray diffraction experiments reveal the ultrafast dynamics of a nanoscale solid structure as it evolves over picosecond timescales; and (5) Environment, Safety, and Health in the Extreme--While working in an Antarctica base camp, one Laboratory manager learned important lessons in safety and environmental stewardship.
Atchison J Aurilio C Baastrup C Barbarisi M Baron R Brett B Canavero S Coates B Cohrs R Connolly ... more Atchison J Aurilio C Baastrup C Barbarisi M Baron R Brett B Canavero S Coates B Cohrs R Connolly M Cope D Coyne P Davis K Dworkin R Erdek M Finnerup N ... Furlan A Gálvez R Gatchel R Ghiasi H Goodchild C Habib A Hans G Hayes K Higa K Hulsebosch C Job C Johnson R ...
... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Pu... more ... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Purdon, P. O'Dell, JP Bearinger, GA Keating, A. Noy, M. Verce ... W-7405-Eng-48. William J. Smith1,Adam H. Love1, Carolyn J. Koester1, J. Garfield Purdon3, Philip O'Dell2, ...
Contractor-Grantee Workshop III
Technology Development and Use 122* Presenting author 93 Instrumented Cell for Characterization o... more Technology Development and Use 122* Presenting author 93 Instrumented Cell for Characterization of Mammalian and Microbial Cells Jane Bearinger*(bearinger1@ llnl. gov), Graham Bench, Jackie Crawford, Lawrence Dugan, Amy Hiddessen, ...
Page 146. Medical Device Materials: Proceedings of the Materials & Processes for Medical Devi... more Page 146. Medical Device Materials: Proceedings of the Materials & Processes for Medical Devices Conference Sanjay Shrivastava, editor, p 139-143 DOI: 10.1361/cp2003mpmd139 Copyright© 2004 ASM International® All rights reserved. www. asminternational. ...
... JP Bearinger*, AL Hiddessen*, KJJ Wu*, AT Christian*, LC Dugan*, G. Stone*, J. Camarero*, AK ... more ... JP Bearinger*, AL Hiddessen*, KJJ Wu*, AT Christian*, LC Dugan*, G. Stone*, J. Camarero*, AK Hinz* and JA Hubbell** *Lawrence Livermore ... in individual stem cells, and determine the relative roles of intrinsic versus extrinsic signals in modulating stem cell fate commitment. ...
This month's issue has the following articles: (1) Game-Changing Science in the National Inte... more This month's issue has the following articles: (1) Game-Changing Science in the National Interest - Commentary by Tomas Diaz de la Rubia; (2) Preventing Close Encounters of the Orbiting Kind - The Testbed Environment for Space Situational Awareness is improving capabilities for monitoring and detecting threats to space operations; (3) A CAT Scanner for Nuclear Weapon Components - A new x-ray system images nuclear weapon components in three dimensions, promising unprecedented resolution and clarity; (4) Mass-Producing Positrons - Scientists reveal a new method for yielding a greater density of positrons at a much faster rate inside a laboratory setting; and (5) The Next Generation of Medical Diagnostic Devices - Portable medical diagnostic devices using ultrawideband technology help first responders evaluate injuries in emergency situations and could improve overall health care.
Sensors and Actuators B: Chemical, 2010
To examine chemically robust thin conjugated polymer films for use as optical and conductometric ... more To examine chemically robust thin conjugated polymer films for use as optical and conductometric sensors, we graft polythiophene and two alkyl-based derivatives to optically transparent substrates. Though structurally contrasting to other film deposition techniques, grafted polythiophene films preserve their documented absorption, luminescence and electrical properties. Photoluminescence intensities are sensitive to trace amounts of iron and iodine in solution with reasonable Stern-Volmer constants and downward sloping Stern-Volmer plots characteristic to thin-film sensors. Rising conductivities indicate chemical doping is responsible for photoluminescence quenching. We vary reaction times and solvents to optimize desired properties and produce robust polythiophene films, verified by X-ray photoemission spectroscopy, that are uniform across the substrate with thicknesses ranging from 20 to 200 nm and controllable levels of surface roughness. Due to steric effects, polythiophene and poly(3-methylthiophene) films exhibit the highest conductivities while poly(3-hexylthiophene) films exhibit greater photoluminescence efficiencies. These platforms show promise as thin films for in-solution sensing.
This month's issue has the following articles: (1) Innovative Materials Rise to the Radiatio... more This month's issue has the following articles: (1) Innovative Materials Rise to the Radiation Challenge - Commentary by Bruce Warner; (2) The Hunt for Better Radiation Detection - New materials will help radiation detectors pick up weak signals and accurately identify illicit radioactive sources; (3) Time-Critical Technology Identifies Deadly Bloodborne Pathogens - A portable device can simultaneously distinguish up to five bloodborne pathogens in just minutes; (4) Defending Computer Networks against Attack - A Laboratory effort takes a new approach to detecting increasingly sophisticated cyber attacks; and (5) Imaging Cargo's Inner Secrets - Livermore-University of California collaborators are modeling a new radiographic technique for identifying nuclear materials concealed inside cargo containers.
The burgeoning field of nanotechnology opens windows between science and art. Exploration of this... more The burgeoning field of nanotechnology opens windows between science and art. Exploration of this interplay encourages interaction between scientists, artists and educators alike. The image below serves as an example of the fertile ground for exchange. The substrate that this image captures is made of silicon, the material from which computer chips are made. A thin ({approx}1 nm thick) chemical coating was applied homogeneously to the silicon. Specific regions of the coating, 600 nm wide (approximately 150 times smaller than the diameter of a human hair), were then locally removed from the silicon via photocatalytic nanolithography (PCNL(Bearinger, Hiddessen et al. 2005)). PCNL engages light, such as from a light emitting diode or an ultraviolet source, to activate molecules that are attached to a transparent mask above the silicon substrate. These molecules can be compounds similar to chlorophyll, the photoactive material that aids plants in photosynthesis, or may be semiconductor ...
... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Pu... more ... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Purdon, P. O'Dell, JP Bearinger, GA Keating, A. Noy, M. Verce ... W-7405-Eng-48. William J. Smith1,Adam H. Love1, Carolyn J. Koester1, J. Garfield Purdon3, Philip O'Dell2, ...
This months issue has the following articles: (1) Science Translated for the Greater Good--Commen... more This months issue has the following articles: (1) Science Translated for the Greater Good--Commentary by Steven D. Liedle; (2) The New Face of Industrial Partnerships--An entrepreneurial spirit is blossoming at Lawrence Livermore; (3) Monitoring a Nuclear Weapon from the Inside--Livermore researchers are developing tiny sensors to warn of detrimental chemical and physical changes inside nuclear warheads; (4) Simulating the Biomolecular Structure of Nanometer-Size Particles--Grand Challenge simulations reveal the size and structure of nanolipoprotein particles used to study membrane proteins; and (5) Antineutrino Detectors Improve Reactor Safeguards--Antineutrino detectors track the consumption and production of fissile materials inside nuclear reactors.
This month's issue has the following articles: (1) Award-Winning Collaborations Provide Solut... more This month's issue has the following articles: (1) Award-Winning Collaborations Provide Solutions--Commentary by Steven D. Liedle; (2) Light-Speed Spectral Analysis of a Laser Pulse--An optical device inspects and stops potentially damaging laser pulses; (3) Capturing Waveforms in a Quadrillionth of a Second--The femtoscope, a time microscope, improves the temporal resolution and dynamic range of conventional recording instruments; (4) Gamma-Ray Spectroscopy in the Palm of Your Hand--A miniature gamma-ray spectrometer provides increased resolution at a reduced cost; (5) Building Fusion Targets with Precision Robotics--A robotic system assembles tiny fusion targets with nanometer precision; (6) ROSE: Making Compiler Technology More Accessible--An open-source software infrastructure makes powerful compiler techniques available to all programmers; (7) Restoring Sight to the Blind with an Artificial Retina--A retinal prosthesis could restore vision to people suffering from eye diseases; (8) Eradicating the Aftermath of War--A remotely operated system precisely locates buried land mines; (9) Compact Alignment for Diagnostic Laser Beams--A smaller, less expensive device aligns diagnostic laser beams onto targets; and (10) Securing Radiological Sources in Africa--Livermore and other national laboratories are helping African countries secure their nuclear materials.
This month's issue has the following articles: (1) Protecting Our Military Forces--Commentary... more This month's issue has the following articles: (1) Protecting Our Military Forces--Commentary by John C. Doesburg; (2) Sniffing the Air with an Electronic Nose--A Livermore-designed minuscule sensor could sniff the air to warn of toxic chemicals in manufacturing plants, on city streets, or during battle; (3) Simulations Explain High-Energy-Density Experiments--A 'grand challenge' project on Livermore's Atlas supercomputer reveals the physics of high-energy-density experiments; (4) Seeing Condensed Matter in a New Light--New x-ray diffraction experiments reveal the ultrafast dynamics of a nanoscale solid structure as it evolves over picosecond timescales; and (5) Environment, Safety, and Health in the Extreme--While working in an Antarctica base camp, one Laboratory manager learned important lessons in safety and environmental stewardship.
Atchison J Aurilio C Baastrup C Barbarisi M Baron R Brett B Canavero S Coates B Cohrs R Connolly ... more Atchison J Aurilio C Baastrup C Barbarisi M Baron R Brett B Canavero S Coates B Cohrs R Connolly M Cope D Coyne P Davis K Dworkin R Erdek M Finnerup N ... Furlan A Gálvez R Gatchel R Ghiasi H Goodchild C Habib A Hans G Hayes K Higa K Hulsebosch C Job C Johnson R ...
... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Pu... more ... (LPDS) Formulations for Sulfur Mustard and Assorted TICs WJ Smith, AH Love, CJ Koester, JG Purdon, P. O'Dell, JP Bearinger, GA Keating, A. Noy, M. Verce ... W-7405-Eng-48. William J. Smith1,Adam H. Love1, Carolyn J. Koester1, J. Garfield Purdon3, Philip O'Dell2, ...
Contractor-Grantee Workshop III
Technology Development and Use 122* Presenting author 93 Instrumented Cell for Characterization o... more Technology Development and Use 122* Presenting author 93 Instrumented Cell for Characterization of Mammalian and Microbial Cells Jane Bearinger*(bearinger1@ llnl. gov), Graham Bench, Jackie Crawford, Lawrence Dugan, Amy Hiddessen, ...
Page 146. Medical Device Materials: Proceedings of the Materials & Processes for Medical Devi... more Page 146. Medical Device Materials: Proceedings of the Materials & Processes for Medical Devices Conference Sanjay Shrivastava, editor, p 139-143 DOI: 10.1361/cp2003mpmd139 Copyright© 2004 ASM International® All rights reserved. www. asminternational. ...
... JP Bearinger*, AL Hiddessen*, KJJ Wu*, AT Christian*, LC Dugan*, G. Stone*, J. Camarero*, AK ... more ... JP Bearinger*, AL Hiddessen*, KJJ Wu*, AT Christian*, LC Dugan*, G. Stone*, J. Camarero*, AK Hinz* and JA Hubbell** *Lawrence Livermore ... in individual stem cells, and determine the relative roles of intrinsic versus extrinsic signals in modulating stem cell fate commitment. ...