Anastasios John Hart

US Patent:

7976815, Jul 12, 2011

Filed:

Oct 25, 2006

Appl. No.:

11/586185

Inventors:

Anastasios John Hart - Somerville MA, US
Alexander Henry Slocum - Bow NH, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

D01F 9/12

US Classification:

4234471, 4234473

Abstract:

A method and apparatus for growing nanostructures is presented. A growth substrate including at least one reaction site is provided as is a device disposed proximate the growth substrate. Energy is provided to the reaction site and a reaction species is introduced to the growth substrate. This results in a nanostructure growing from the reaction site wherein the growth process of the nanostructure is controlled by providing a force to the device.

US Patent:

8075863, Dec 13, 2011

Filed:

May 26, 2005

Appl. No.:

11/138881

Inventors:

Anastasios J. Hart - Somerville MA, US
Alexander H. Slocum - Bow NH, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

D01F 9/12
D01F 9/127

US Classification:

4234473, 977843, 977890

Abstract:

The present invention relates to the synthesis and processing of materials, including nanostructures such as carbon nanotubes (CNTs). Methods and devices are presented for controlling the growth and/or assembly of nanostructures, in some cases using small channel-type environments (e. g. , microfluidic channels). In these micro-scale environments, forces can be applied to nanostructures during their growth process, for instance, to control the rate and/or direction of growth of the nanostructures. These forces can also be used to direct the assembly of nanostructures into ordered configurations such as strands or other assemblies having micro- and macroscopic length scales. In some embodiments, multiple forces are applied simultaneously to direct the growth and/or assembly of nanostructures.

US Patent:

8337979, Dec 25, 2012

Filed:

Aug 24, 2007

Appl. No.:

11/895621

Inventors:

Brian L. Wardle - Lexington MA, US
Anastasios John Hart - Somerville MA, US
Enrique J. Garcia - Cambridge MA, US
Alexander Henry Slocum - Bow NH, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B32B 27/04

US Classification:

4282974, 4282981, 4283007, 977742, 977750, 977752, 977753

Abstract:

The present invention provides methods for uniform growth of nanostructures such as nanotubes (e. g. , carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.

US Patent:

8372470, Feb 12, 2013

Filed:

Oct 25, 2006

Appl. No.:

11/586310

Inventors:

Anastasios John Hart - Somerville MA, US
Alexander Henry Slocum - Bow NH, US
Lucas Carolus van Laake - Eindhover, NL

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

D01F 9/12

US Classification:

427 8, 423445 B, 977842

Abstract:

A method and apparatus providing controlled growth and assembly of nanostructures is presented. A first substrate including at least one reaction site is provided. Energy is provided to the reaction site and a reaction species is introduced to the first substrate. A nanostructure is grown from the reaction site. The growth process of the nanostructure is controlled while continuously monitoring the properties of at least one of the nanostructure and the at least one reaction site, and by controlling process variables based on the monitored properties of the nanostructure and the at least one reaction site.

US Patent:

20130142987, Jun 6, 2013

Filed:

Nov 16, 2012

Appl. No.:

13/679371

Inventors:

Massachusetts Institute of Technology - Cambridge MA, US
Anastasios John Hart - Ann Arbor MI, US
Enrique J. Garcia - Zaragoza, ES
Alexander H. Slocum - Bow NH, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B32B 37/02

US Classification:

428 98, 156 60, 427444, 1563073, 156249, 428375, 428368

Abstract:

The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.

US Patent:

6886651, May 3, 2005

Filed:

Jan 6, 2003

Appl. No.:

10/337097

Inventors:

Alexander H. Slocum - Bow NH, US
Shorya Awtar - Cambridge MA, US
Anastasios John Hart - Somerville MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B60T007/16
B62D061/02
B60K017/00
B60L013/04
B61C011/00

US Classification:

180167, 180221, 180342, 104281, 104282, 104283, 105 78

Abstract:

A material transportation system includes one or more material transportation vehicles, each having magnetic wheels coupled to a magnetically attractive surface that can include a ceiling, a wall, a floor, and/or a transition region. The material transportation vehicles are adapted to carry material from place to place. Each material transportation vehicle has sensors and motor controls that reduce swing motion of the material transportation vehicle and the material coupled thereto. A collision avoidance and traffic control system prevents collisions between the one or more material transportation vehicles.

US Patent:

20210364398, Nov 25, 2021

Filed:

Aug 3, 2021

Appl. No.:

17/392326

Inventors:

- Cambridge MA, US
Michael Bono - Somerville MA, US
Anastasios John Hart - Waban MA, US
Rohit Karnik - Cambridge MA, US
Xiaoyuan Ren - Cambridge MA, US
Chintan Vaishnav - Belmont MA, US

Assignee:

MASSACHUSETTS INSTITUTE OF TECHNOLOGY - Cambridge MA

International Classification:

G01N 1/40
G01N 1/10
G01N 1/12
G01N 1/20
B01D 15/18
B01J 20/28
B01J 20/26
B01J 20/34
B01L 3/00
C02F 1/28
C02F 1/42
C12Q 1/6806

Abstract:

A device for collecting contaminants from water samples is provided. The device includes a solid sorbent that collects and stores the contaminants from water samples. The solid sorbent is configured to allow for the preservation of the stored contaminants. The concentrations of the contaminants in the water samples are determined via analysis of the solid sorbent or via elution of the stored contaminants from the sorbent and analysis of the eluate solution.

US Patent:

20210300009, Sep 30, 2021

Filed:

Feb 1, 2021

Appl. No.:

17/163936

Inventors:

- Cambridge MA, US
Anastasios John Hart - Waban MA, US
Enrique J. Garcia - Zaragoza, ES
Alexander H. Slocum - Bow NH, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B32B 37/02
C01B 32/162
C01B 32/18
B82B 1/00
B82Y 30/00
B82Y 40/00
C08J 5/00
D01F 9/127
D01F 9/133

Abstract:

The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.