Angela M. Belcher | |
---|---|
Citizenship | United States |
Education | University of California, Santa Barbara (B.S. 1991, Ph.D. 1997) |
Known for | Viral assembly of nanotechnology |
Awards | MacArthur Fellowship (2004) Beckman Young Investigators Award (2000) [1] National Medal of Science (2024) |
Scientific career | |
Fields | Biological engineering materials science |
Institutions | MIT |
Thesis | Spatial and temporal resolution of interfaces, phase transitions and isolation of three families of proteins in calcium carbonate based biocomposite materials (1997) |
Doctoral advisor | Galen D. Stucky |
Angela M. Belcher is a materials scientist, biological engineer, and the James Mason Crafts Professor of Biological Engineering and Materials Science at the Massachusetts Institute of Technology (MIT) in Cambridge, Massachusetts, United States. [2] She is director of the Biomolecular Materials Group at MIT, a member of the Koch Institute for Integrative Cancer Research, and a 2004 MacArthur Fellow. In 2019, she was named head of the Department of Biological Engineering at MIT. [3] She was elected a member of the National Academy of Sciences in 2022. [4]
Belcher grew up in San Antonio, Texas. She attended the University of California, Santa Barbara, where she received her bachelor's degree from the College of Creative Studies in 1991 and her Ph.D. in chemistry in 1997. [5]
After studying abalone shells, she worked with several colleagues at MIT and engineered a virus, known as the M13 bacteriophage whose target is usually Escherichia coli . M13 can be made to latch onto and coat itself with inorganic materials including gold and cobalt oxide. The long tubular virus (coated in cobalt oxide) now acts as a minuscule length of wire called a nanowire. [6] Belcher's group coaxed many of these nanowires together and found that they resemble the basic components of a potentially very powerful and compact battery. [7] [8] In 2002 she founded Cambrios with Evelyn L. Hu of (at the time) University of California, Santa Barbara. [9] Their vision relied upon the use of nanostructured inorganic materials, fabricated and shaped by biological molecules to create novel materials and processes for a variety of industries. She also founded and serves on the Advisory Committee of Siluria Technologies, which develops catalytic methods for converting natural gas into products such as ethylene, gasoline, and diesel fuel. [10]
In 2009 Belcher and her team demonstrated the feasibility of using genetically modified viruses to build both anode and cathode of a lithium-ion battery. These new batteries have the same energy capacity and power as cutting-edge rechargeable batteries earmarked for use in hybrid cars, as well as powering a range of electronic devices. The batteries could be manufactured using a cheap and environmentally friendly process, as the synthesis can be done near room temperature, using no harmful solvents or toxic materials. [11] [12] In October 2009, President Barack Obama visited Belcher's lab at MIT. [13]
In 2014 Belcher and her group demonstrated the potential for M13 phages to detect cancer. They developed a nanoprobe that uses M13 virus-stabilized SWNTs (single walled carbon nanotubes) to visualize deep, disseminated tumors in vivo. Using this process, they were able to identify submillimeter tumors. [14]
A Time article [15] featured her work on viral batteries and Scientific American named her research leader of the year in 2006 for her current project. [16] In 2002, she was named to the MIT Technology Review TR100 as one of the top 100 innovators in the world under the age of 35. [17] In 2013, Belcher was awarded the Lemelson-MIT Prize. [18]
She has been elected to the Academy of Arts & Sciences and the National Academy of Inventors. Belcher was also elected as a member of the National Academy of Engineering in 2018 for the development of novel genetic evolution methods for the generation of new materials and devices. [19] [20] [21] In 2022, Belcher was appointed to the National Security Commission on Emerging Biotechnology. [22]
In 2024, Belcher was awarded the National Medal of Science. [23] [24]
The Lemelson–MIT Program awards several prizes yearly to inventors in the United States. The largest is the Lemelson–MIT Prize which was endowed in 1994 by Jerome H. Lemelson, funded by the Lemelson Foundation, and is administered through the School of Engineering at the Massachusetts Institute of Technology. The winner receives $500,000, making it the largest cash prize for invention in the U.S.
John Bannister Goodenough was an American materials scientist, a solid-state physicist, and a Nobel laureate in chemistry. From 1986 he was a professor of Materials Science, Electrical Engineering and Mechanical Engineering, at the University of Texas at Austin. He is credited with identifying the Goodenough–Kanamori rules of the sign of the magnetic superexchange in materials, with developing materials for computer random-access memory and with inventing cathode materials for lithium-ion batteries.
M13 is one of the Ff phages, a member of the family filamentous bacteriophage (inovirus). Ff phages are composed of circular single-stranded DNA (ssDNA), which in the case of the m13 phage is 6407 nucleotides long and is encapsulated in approximately 2700 copies of the major coat protein p8, and capped with about 5 copies each of four different minor coat proteins. The minor coat protein p3 attaches to the receptor at the tip of the F pilus of the host Escherichia coli. The life cycle is relatively short, with the early phage progeny exiting the cell ten minutes after infection. Ff phages are chronic phage, releasing their progeny without killing the host cells. The infection causes turbid plaques in E. coli lawns, of intermediate opacity in comparison to regular lysis plaques. However, a decrease in the rate of cell growth is seen in the infected cells. The replicative form of M13 is circular double-stranded DNA similar to plasmids that are used for many recombinant DNA processes, and the virus has also been used for phage display, directed evolution, nanostructures and nanotechnology applications.
A mimotope is often a peptide, and mimics the structure of an epitope. Because of this property it causes an antibody response similar to the one elicited by the epitope. An antibody for a given epitope antigen will recognize a mimotope which mimics that epitope. Mimotopes are commonly obtained from phage display libraries through biopanning. Vaccines utilizing mimotopes are being developed. Mimotopes are a kind of peptide aptamers.
A nanowire battery uses nanowires to increase the surface area of one or both of its electrodes, which improves the capacity of the battery. Some designs, variations of the lithium-ion battery have been announced, although none are commercially available. All of the concepts replace the traditional graphite anode and could improve battery performance. Each type of nanowire battery has specific advantages and disadvantages, but a challenge common to all of them is their fragility.
The lithium–air battery (Li–air) is a metal–air electrochemical cell or battery chemistry that uses oxidation of lithium at the anode and reduction of oxygen at the cathode to induce a current flow.
A genetically modified virus is a virus that has been altered or generated using biotechnology methods, and remains capable of infection. Genetic modification involves the directed insertion, deletion, artificial synthesis or change of nucleotide bases in viral genomes. Genetically modified viruses are mostly generated by the insertion of foreign genes intro viral genomes for the purposes of biomedical, agricultural, bio-control, or technological objectives. The terms genetically modified virus and genetically engineered virus are used synonymously.
Ff phages is a group of almost identical filamentous phage including phages f1, fd, M13 and ZJ/2, which infect bacteria bearing the F fertility factor. The virion is a flexible filament measuring about 6 by 900 nm, comprising a cylindrical protein tube protecting a single-stranded circular DNA molecule at its core. The phage codes for only 11 gene products, and is one of the simplest viruses known. It has been widely used to study fundamental aspects of molecular biology. George Smith and Greg Winter used f1 and fd for their work on phage display for which they were awarded a share of the 2018 Nobel Prize in Chemistry. Early experiments on Ff phages used M13 to identify gene functions, and M13 was also developed as a cloning vehicle, so the name M13 is sometimes used as an informal synonym for the whole group of Ff phages.
Paula Therese Hammond is an Institute Professor and the Vice Provost for Faculty at the Massachusetts Institute of Technology (MIT). She was the first woman and person of color appointed as head of the Chemical Engineering department. Her laboratory designs polymers and nanoparticles for drug delivery and energy-related applications including batteries and fuel cells.
Research in lithium-ion batteries has produced many proposed refinements of lithium-ion batteries. Areas of research interest have focused on improving energy density, safety, rate capability, cycle durability, flexibility, and reducing cost.
Gerbrand Ceder is a Belgian–American scientist who is a professor and the Samsung Distinguished Chair in Nanoscience and Nanotechnology Research at the University of California, Berkeley. He has a joint appointment as a senior faculty scientist in the Materials Sciences Division of Lawrence Berkeley National Laboratory. He is notable for his pioneering research in high-throughput computational materials design, and in the development of novel lithium-ion battery technologies. He is co-founder of the Materials Project, an open-source online database of ab initio calculated material properties, which inspired the Materials Genome Initiative by the Obama administration in 2011. He was previously the Founder and CTO of Pellion Technologies, which aimed to commercialize magnesium-ion batteries. In 2017 Gerbrand Ceder was elected a member of the National Academy of Engineering, "For the development of practical computational materials design and its application to the improvement of energy storage technology."
Lithium–silicon batteries are lithium-ion batteries that employ a silicon-based anode, and lithium ions as the charge carriers. Silicon based materials, generally, have a much larger specific capacity, for example, 3600 mAh/g for pristine silicon. The standard anode material graphite is limited to a maximum theoretical capacity of 372 mAh/g for the fully lithiated state LiC6.
Silicon nanowires, also referred to as SiNWs, are a type of semiconductor nanowire most often formed from a silicon precursor by etching of a solid or through catalyzed growth from a vapor or liquid phase. Such nanowires have promising applications in lithium-ion batteries, thermoelectrics and sensors. Initial synthesis of SiNWs is often accompanied by thermal oxidation steps to yield structures of accurately tailored size and morphology.
Virus nanotechnology is the use of viruses as a source of nanoparticles for biomedical purposes. Viruses are made up of a genome and a capsid; and some viruses are enveloped. Most virus capsids measure between 20-500 nm in diameter. Because of their nanometer size dimensions, viruses have been considered as naturally occurring nanoparticles. Virus nanoparticles have been subject to the nanoscience and nanoengineering disciplines. Viruses can be regarded as prefabricated nanoparticles. Many different viruses have been studied for various applications in nanotechnology: for example, mammalian viruses are being developed as vectors for gene delivery, and bacteriophages and plant viruses have been used in drug delivery and imaging applications as well as in vaccines and immunotherapy intervention.
Linda Faye Nazar is a Senior Canada Research Chair in Solid State Materials and Distinguished Research Professor of Chemistry at the University of Waterloo. She develops materials for electrochemical energy storage and conversion. Nazar demonstrated that interwoven composites could be used to improve the energy density of lithium–sulphur batteries. She was awarded the 2019 Chemical Institute of Canada Medal.
Frances Mary Ross is the Ellen Swallow Richards Professor in Materials Science and Engineering at Massachusetts Institute of Technology. Her work involves the use of in situ transmission electron microscopy to study nanostructure formation. In 2018 she was awarded the International Federation of Societies for Microscopy Hatsujiro Hashimoto Medal. Ross is a Fellow of the American Association for the Advancement of Science, the American Physical Society, the Microscopy Society of America and the Royal Microscopical Society,
Yi Cui is a Chinese-American scientist specializing in the fields of nanotechnology, materials science, sustainable energy, and chemistry. Cui is Fortinet Founders Professor at Stanford University, where he also serves as a professor of materials science and engineering and of energy science and engineering. He is a Highly Cited Researcher in the fields of materials science, environment and ecology, engineering, and chemistry as of 2023. From 2020 to 2023, Cui was the director of the Precourt Institute for Energy, and since 2023 he has served as the inaugural faculty director of the Sustainability Accelerator in the Doerr School of Sustainability.
Ying Shirley Meng is a Singaporean-American materials scientist and academic. She is a professor at the Pritzker School of Molecular Engineering at the University of Chicago and Argonne Collaborative Center for Energy Storage Science (ACCESS) chief scientist at Argonne National Laboratory. Meng is the author and co-author of more than 300 peer-reviewed journal articles, two book chapter and six patents. She serves on the executive committee for battery division at the Electrochemical Society and she is the Editor-in-Chief for MRS Energy & Sustainability.
Amy Prieto is a Professor of Chemistry at Colorado State University and the Founder and Chief Technical Officer of Prieto Battery.
Vanessa Claire Wood is an American engineer who is a professor at the ETH Zurich. She holds a chair in Materials and Device Engineering and serves as Vice President of Knowledge Transfer and Corporate Relations.