Lawrence Livermore National Security, LLC

University of Texas System

Cheng Zhu

Eric B Duoss

Christopher M Spadaccini

Marcus A Worsley

Fang Qian

Joshua D Kuntz

Theodore F Baumann

Patrick G Campbell

Michael Stadermann

Matthew Merrill

Jianchao Ye

Stephen Anthony Payne

Sarah Elyse Baker

Nerine Jane Cherepy

Juergen Biener

Swetha Chandrasekaran

William C Floyd, Iii

Zachary M Seeley

Julie A Jackson

Zhen Qi

Siwei Liang

Conner T Sharpe

Ivy Krystal Jones

Thomas S Wilson

Joshuah K Stolaroff

Robin R Miles

Mihail Bora

Joshua R Deotte

Du Nguyen

Jennifer Marie Knipe

Jennifer Nicole Rodriguez

James Lewicki

Tayyab Ishaq Suratwala

Thomas Yong Han

Nikola Dudukovic

Julie A Mancini

Anthony W Van Buuren

Jinkyu Han

Tammy Olson

Geoffrey M Oxberry

Tyler Martin Fears

Wen Chen

Rebecca Dylla-Spears

Samantha Ruelas

Koroush Sasan

Pui Ching Lan

Bradley Trembacki

Jayathi Murthy

Timothy Dexter Yee

Cameron David Meyers

Joel Destino

In one embodiment, an ink includes a polymer precursor, a copolymer, a catalyst, and a solvent. In another embodiment, a product includes a three-dimensional printed structure having ligaments, where an average diameter of the ligaments is in a range of about 10 microns to about 500 microns.

Additive manufacture of hierarchically porous materials with high resolution

Bio-ink comprising freeze-dried cells, methods of making a living structure from a bio-ink material of freeze-dried cells, and methods of using the living structure for biosensing, tissue regeneration, environment sensing, drug discovery, catalysis, and/or clinical implementation are described herein.

Bio-ink structures and methods of producing the same

According to one embodiment, a method includes forming a structure by printing an ink, the ink including a glass-forming material, and heat treating the formed structure for converting the glass-forming material to glass. According to another embodiment, an ink composition includes a glass-forming material and a solvent.

Engineered feedstocks for additive manufacture of glass

In one aspect, a composition of matter includes: a plurality of particles in a thixotropic suspension to form an ink, where the plurality of particles are present in an amount of at least about 20 vol %, and the plurality of particles include: a first host medium material containing at least one of: one or more lasing species dopants; and one or more other dopant species; and a second host medium material containing at least one other dopant species. The composition of matter further includes a liquid phase present in an amount greater than 20 vol % and less than about 80 vol %, where the liquid phase comprises at least one of: at least one surfactant; at least one polar organic solvent; and at least one binder.

Laser gain media fabricated via direct ink writing (DIW) and ceramic processing

An aerogel includes a three-dimensional printed structure having printed ligaments geometrically arranged, where an average diameter of the printed ligaments is in a range of greater than 0 microns and less than 50 microns. In addition, an average distance between a center of a first of the printed ligaments and a center of a second of the printed ligaments is at least equal to the average diameter of the printed ligaments, where the first and the second of the printed ligaments are adjacent. Each printed ligament includes of a plurality of random pores, where an average diameter of the random pores is less than 50 nanometers.

Base-catalyzed sol-gel inks for direct ink writing of high resolution hierarchically porous carbon aerogels

An additive manufacturing apparatus includes an additive manufacturing print head and a nozzle that receives a bio-based shape memory polymer material and a bio-based material. The nozzle extrudes the bio-based shape memory polymer material and the bio-based material onto a substrate to form a bio-based shape memory polymer part or product.

Additively manufacturing bio-based conductive shape memory polymer macostructure parts with highly ordered microstructures

The production of a porous copper-zinc structure includes providing copper ink, creating a 3D model of the porous copper-zinc structure, 3D printing the copper ink into a porous copper lattice structure using the 3D model, heat treatment of the porous copper lattice structure producing a heat treated porous copper lattice structure, surface modification of the heat treated porous copper lattice structure by nanowires growth on the heat treated porous copper lattice structure producing a heat treated porous copper lattice structure with nanowires, and electrodeposition of zinc onto the heat treated porous copper lattice structure with nanowires to produce the porous copper-zinc structure.

Fabrication of 3D-printed copper based zinc anodes

According to one aspect of an inventive concept, an ink includes a base catalyst, a sol gel precursor composition, and a block copolymer. According to another aspect of an inventive concept, an aerogel includes a three-dimensional printed structure having printed ligaments geometrically arranged, where an average diameter of the printed ligaments is in a range of greater than 0 microns and less than 50 microns. In addition, an average distance between a center of a first of the printed ligaments and a center of a second of the printed ligaments is at least equal to the average diameter of the printed ligaments, where the first and the second of the printed ligaments are adjacent. Each printed ligament includes of a plurality of random pores, where an average diameter of the random pores is less than 50 nanometers.

An ink formulation and electrode that enhances hydrogen production, oxygen production, carbon dioxide reduction and other electrocatalytic reactions. Embodiments include an ink formulation with polymer binders having different catalytical precursors and a 3D electrode produced by additive manufacturing from the inventor's ink formulation. Various embodiments of the inventor's apparatus, systems, and methods provide inks that that are 3D-printed into patterns that optimize surface area and flow. The catalytic materials are imbedded into the ink matrix which is then printed into a 3D structure that has architecture that optimizes surface area and flow properties.

Engineering catalytical electrodes for applications in energy areas

The present disclosure relates to an electrical energy storage apparatus which forms an interpenetrating, three dimensional structure. The structure may have a first non-planar channel filled with an anode material to form an anode, and a second non-planar channel adjacent the first non-planar channel filled with a cathode material to form a cathode. A third non-planar channel may be formed adjacent the first and second non-planar channels and filled with an electrolyte. The first, second and third channels are formed so as to be interpenetrating and form a spatially dense, three dimensional structure. A first current collector is in communication with the first non-planar channel and forms a first electrode, while a second current collector is in communication with the second non-planar channel and forms a second electrode. A separator layers separates the current collectors.

Systems and methods for electrical energy storage

The present disclosure relates to a method for forming a three dimensional, hierarchical, porous metal structure with deterministically controlled 3D multiscale pore architectures. The method may involve providing a feedstock able to be applied in an additive manufacturing process, and using an additive manufacturing process to produce a three dimensional (3D) structure using the feedstock. The method may involve further processing the 3D structure through at least a de-alloying operation to form a metallic 3D structure having an engineered, digitally controlled macropore morphology with integrated nanoporosity.

Hierarchical porous metals with deterministic 3D morphology and shape via de-alloying of 3D printed alloys

A transparent ceramic optic includes: a lasing region comprising at least one lasing species dopant; and a transparent region transparent to light generated by the lasing species. At least the transparent region is doped with at least one other dopant species such that the lasing region and the transparent region are characterized by a difference in refractive index between the two regions in an amount of about 1.0&#xd7;10or less. Inventive formulations of inks suitable for fabricating transparent ceramic optics having desirable compositional characteristics such as concentration gradients in desired spatial arrangements, e.g. using additive manufacturing techniques such as direct ink writing and/or extrusion freeform fabrication are also disclosed, along with suitable techniques for forming the transparent ceramic optics from such inks.

A separator made of ion conductive ink is produced by additive manufacturing. A micro-battery is produced with the separator made of ion conductive ink located between the battery's anode and cathode. The separator functions to keep the anode and cathode apart and to facilitate the transport of ions to produce an operative micro-battery.

Ion conductive inks and solutions for additive manufacturing of lithium microbatteries

Disclosed here is a three-dimensional electronic scaffold, comprising a porous scaffold and a plurality of micro-strain gauges distributed spatially inside the porous scaffold, wherein the micro-strain gauges are adapted to detect contraction force. Also disclosed is a method comprising detecting and mapping intra-tissue cardiac contraction force of one or more cardiac cells or tissues disposed in a three-dimensional electronic scaffold, wherein the three-dimensional electronic scaffold comprises a porous scaffold and a plurality of micro-strain gauges distributed spatially inside the porous scaffold and in contact with the cardiac cells or tissues, and wherein the micro-strain gauges are adapted to detect contraction force of the cardiac cells or tissues.

Three-dimensional electronic scaffold for cardiac applications

Growing community of inventors

Livermore, CA, United States of America

Cheng Zhu