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Kinetic Lighting, Dlight, Dominates World Renowned Design Awards
Professor Sang-Min Bae
“D’light,” a lamp that transforms its lampshade shape, developed by a team led by KAIST Department of Industrial Design’s Professor Sang-Min Bae, won Japan’s Good Design Awards on October the 2nd, soon after winning the internationally renowned 2013 International Design Excellence Awards (IDEA) in August.
IDEA, sponsored by the Industrial Design Society of America (IDSA) and BusinessWeek, awards the best work from over 6,000 exhibits from 50 countries. Japan’s Good Design Awards, founded by the Japan Institute of Design Promotion (JDP) in 1957, is the most prestigious and one of the World’s four major design awards.
“D’light” combines “donative” and “light.” Its meaning originates from the meaning of “delight” which means “giving great joy.” The shape and the brightness of the lamp can be transformed by turning the end of the heart-shaped lampshade. The team states that the lamp carries a figurative meaning of generous hearts lighting the neglected of the world by designing the lamp to be the brightest when it takes the shape of a heart. D’light developed as the 5th product of “the Nanum” project that started in 2006. Professor Bae first participated in the project in developing the 2nd product, “Cross Cube” in 2007. The he designed and launched the environmentally friendly humidifier “Lovepot” in 2008 and interactive tumbler “Hearty” in 2009.
The “Nanum” project aims to develop innovative products for charity to create a humane social circulatory system. The project, led by the international relief and development organisation, World Vision and KAIST’s ID+IM laboratory run by Professor Bae, donates all profits to educate the children of low-income families. The project raised a total of 1.7 billion Korean won from 2007 this year to provide scholarships to 240 children in need.
Professor Bae’s team has undertaken seed and “Nanum” projects with the theme of philanthropy design helping people in need by creating innovative designs. The project has produced four excellent and authentic products which received 44 world renowned design awards.
Professor Bae said, “’The Nanum’ project consists of planning, designing, producing and selling for charity and donates all profit to children in need through education and scholarship.” He continued, “The consumers can purchase products that are aesthetically pleasing and convenient as well as gaining an opportunity to donate to children in need.”
Figure1 Kinetic lighting D’light
Figure 2. Characteristics of “Nanum” D’light
The shape of the lampshade can be transformed. The lamp sheds the brightest light when it takes the shape of a heart, hence showing the figurative meaning of brightening the neglected parts of the world with generous hearts.
Figure 3. Detailed Images of D’light
2013.11.11 View 9049 -
Observation of a water strider led to a new method of measuring properties of Nano films
Even the mechanical properties of Nano films of a few nanometers thick can be measured
Posted online Nature Communications on the 3rd of October
The joint research team of KAIST’s Department of Mechanical Engineering’s Professor Taek-Soo Kim and Doctor Seung-Min Hyun of the Nano mechanics laboratory of Korea Institute of Machinery and Materials has developed a new method to evaluate mechanical properties of Nano films using the characteristics of water surfaces.
The research findings have been posted on the online edition of Nature Communications on the 3rd of October. The technology can obtain accurate results by directly measuring the mechanical properties such as the strength and elasticity of Nano films. Academia and the industry expect the simplicity of the technology to present a new paradigm in the evaluation of mechanical properties of Nano films.
Evaluation of the mechanical properties of Nano films is essential not only in predicting the reliability of semiconductors and displays, but also in finding new phenomena in the Nano world. However, mechanical strength was difficult to test since the test demands the falling of objects to the ground to measure their strength, and nano films can easily break in the process.
The research team observed insects such as water striders freely floating on the surface of the water. The team used the properties of water, large surface tension and low viscosity, to float a 55 nanometers (nm) gold Nano film to successfully measure its mechanical properties without damaging it. The technology could be used to measure the mechanical properties of not only various types of Nano films but also films only a few nm thick.
Professor Taek-Soo Kim said, “We effectively performed an evaluation of the mechanical characteristics of Nano films, which was difficult in the past, by developing a new strength test using the properties of water.” He continued to say, “The team plans to discover the mechanical properties of 2D Nano films such as graphene that could not have been measured with the existing strength test methods.”
The research by KAIST’s Department of Mechanical Engineering’s graduate student Jae-Han Kim (lead author) under the supervision of Professor Taek-Soo Kim and Doctor Seung-Min Hyun of Korea Institute of Machinery and Materials was sponsored by the National Research Foundation of Korea.
Evaluation process of mechanical properties of Nano films by using the characteristics of water surfaces
Dr Seung-Min Hyun, Jae-Han Kim, and Professor Taek-Soo Kim from left to right
2013.11.11 View 8062 -
The World Economic Forum Invites KAIST to 2014 Davos Forum
President Steve Kang and Distinguished Professor Sang Yup Lee have been invited by the World Economic Forum (WEF) to attend its annual meeting slated for January 22-25, 2014 in Davos-Klosters, Switzerland.
The president will also join the Global University Leaders Forum (GULF) to be held during the annual meeting. The GULF consists of leading research universities throughout the world, at which President Kang will address agenda related to higher education and research.
From September 11th to 13th, KAIST was invited to the WEF’s 2013 Summer Davos Forum held in Dalian, China. The Summer Davos Forum is recognized as a barometer of the world economy, and KAIST hosted three sessions there.
In a session titled “Smart Regulations,” Professor Sang Yup Lee hosted presentations and discussions under the topic of “How regulation models can strengthen technical innovation and expansion.” President Steve Kang, Peter Sands, CEO of Standard Chartered Bank Group, Mark Weinberger, CEO of Ernest & Young, and Peter Terium, CEO of RWE, participated in the discussions.
The KAIST delegates also presented and participated in a session titled “From Trade Center to Innovative Hub” to discuss how to lead innovations in Asia, as well as “Marine Resources: Finding New Frontier” to address issues of how to develop and manage oceanic resources for potential growth.
President Kang said, “The World Economic Forum allows us to introduce the results of our innovative and creative research to global leaders and to demonstrate that our global position continues to grow.”
The WEF has been hosting Summer Davos Forum in China since 2007. About 1,500 participants from over 90 countries joined in this year’s summer forum under the theme of “Innovation: Inevitable Mainstream.” New strategies for innovations and solutions for global threats were suggested through presentations and discussions in 125 sessions.
The World Economic Forum (WEF) is an independent, international, and non-profit organization based in Geneva, Switzerland. It is committed to improving the state of the world by engaging business, political, academic, and government leaders to shape global, regional and industry agenda.
Among the meetings and forums organized by the WEF, its annual meeting held each January in Davos, a.k.a. the Davos Forum, has been the best known gathering. The Davos Forum brings together some 2,500 top business leaders, international political leaders, selected intellectuals and journalists to discuss the most pressing issues facing the world including health and environment.
2013.11.07 View 10205 -
KAIST announced a novel technology to produce gasoline by a metabolically engineered microorganism
A major scientific breakthrough in the development of renewable energy sources and other important chemicals; The research team succeeded in producing 580 mg of gasoline per liter of cultured broth by converting in vivo generated fatty acids
For many decades, we have been relying on fossil resources to produce liquid fuels such as gasoline, diesel, and many industrial and consumer chemicals for daily use. However, increasing strains on natural resources as well as environmental issues including global warming have triggered a strong interest in developing sustainable ways to obtain fuels and chemicals.
Gasoline, the petroleum-derived product that is most widely used as a fuel for transportation, is a mixture of hydrocarbons, additives, and blending agents. The hydrocarbons, called alkanes, consist only of carbon and hydrogen atoms. Gasoline has a combination of straight-chain and branched-chain alkanes (hydrocarbons) consisted of 4-12 carbon atoms linked by direct carbon-carbon bonds.
Previously, through metabolic engineering of Escherichia coli (E. coli), there have been a few research results on the production of long-chain alkanes, which consist of 13-17 carbon atoms, suitable for replacing diesel. However, there has been no report on the microbial production of short-chain alkanes, a possible substitute for gasoline.
In the paper (entitled "Microbial Production of Short-chain Alkanes") published online in Nature on September 29, a Korean research team led by Distinguished Professor Sang Yup Lee of the Department of Chemical and Biomolecular Engineering at the Korea Advanced Institute of Science and Technology (KAIST) reported, for the first time, the development of a novel strategy for microbial gasoline production through metabolic engineering of E. coli.
The research team engineered the fatty acid metabolism to provide the fatty acid derivatives that are shorter than normal intracellular fatty acid metabolites, and introduced a novel synthetic pathway for the biosynthesis of short-chain alkanes. This allowed the development of platform E. coli strain capable of producing gasoline for the first time. Furthermore, this platform strain, if desired, can be modified to produce other products such as short-chain fatty esters and short-chain fatty alcohols.
In this paper, the Korean researchers described detailed strategies for 1) screening of enzymes associated with the production of fatty acids, 2) engineering of enzymes and fatty acid biosynthetic pathways to concentrate carbon flux towards the short-chain fatty acid production, and 3) converting short-chain fatty acids to their corresponding alkanes (gasoline) by introducing a novel synthetic pathway and optimization of culture conditions. Furthermore, the research team showed the possibility of producing fatty esters and alcohols by introducing responsible enzymes into the same platform strain.
Professor Sang Yup Lee said, "It is only the beginning of the work towards sustainable production of gasoline. The titer is rather low due to the low metabolic flux towards the formation of short-chain fatty acids and their derivatives. We are currently working on increasing the titer, yield and productivity of bio-gasoline. Nonetheless, we are pleased to report, for the first time, the production of gasoline through the metabolic engineering of E. coli, which we hope will serve as a basis for the metabolic engineering of microorganisms to produce fuels and chemicals from renewable resources."
This research was supported by the Advanced Biomass Research and Development Center of Korea (ABC-2010-0029799) through the Global Frontier Research Program of the Ministry of Science, ICT and Future Planning (MSIP) through the National Research Foundation (NRF), Republic of Korea. Systems metabolic engineering work was supported by the Technology Development Program to Solve Climate Changes on Systems Metabolic Engineering for Biorefineries (NRF-2012-C1AAA001-2012M1A2A2026556) by MSIP through NRF.
Short-Chain Alkanes Generated from Renewable Biomass
This diagram shows the metabolic engineering of Escherichia coli for the production of short-chain alkanes (gasoline) from renewable biomass.
Nature Cover Page (September 29th, 2013)
2013.11.04 View 10963 -
Artist in residence program at KAIST
A new and innovative program to support artists’ creative activities was launched by KAIST for the first time in Korean college history.
The artist in residence program is an unusual collaboration between engineers and artists. Out of hundreds of applicants for the program, three writers were selected: a novelist, web-based cartoonist, and screen writer. In late October, they became the residents of KAIST.
Housing and an office are provided for the writers in addition to a monthly cash stipend of 800,000 won for up to six months. A variety of programs will be available as well including a tour of laboratories to help the writers get ideas and inspiration.
KAIST’s Vice President Jun-Ho Oh, the founder of the program, said, “Artists can freshen their imagination, and KAIST members can benefit from them to promote creative and innovative ideas through exchange and collaboration.”
2013.11.04 View 6252
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Collaboration with Korea Institute of Energy Research
KAIST and the Korea Institute of Energy Research (KIER) agreed on September 4th to further collaboration on energy research such as the development of nano-based hybrid solar cells, bio-fuels, artificial photosynthesis, and carbon dioxide reduction.
The two institutions will select 11 research projects to focus on their cooperation. President Steve Kang (in the right) stood with Jooho Whang, the president of KIER (in the left), holding the signed memorandum of understanding.
2013.11.04 View 7310 -
First Prize in the 2013 International Military Science and Technology Contest
Professor James R. Morrison and his students of the Industrial and Systems Engineering Department at KAIST were awarded the first prize in the 2013 International Military Science and Technology Contest organized by the Defense Acquisition Program Administration held in COEX from July 11 to 14.
The research group, Byungduk Song (Ph.D candidate), Jonghoe Kim (Ph.D candidate), Hyolin Park (MS candidate) and Professor James R. Morrison, received the first prize with their paper entitled “Automated and persistent UAV system for a complementary method for border patrol and target tracking.”
The Defense Acquisition Program Administration is the host of the annual contest which aims to contribute to the future of the defense industry and to expand technology exchange between private institutes and the military through the coordination of defense technology and advanced technology from industrial and educational cooperation.Professor Morrison’s team received the honor of the first-place prize out of 56 competitors from within Korea and 7 from overseas in the field of Synthetic New Technology/Academic Thesis.
2013.10.31 View 8190 -
Distinguished Professor Sang Yup Lee appointed as an advisor for Shanghai Jiao Tong University in China
In recognition of his outstanding accomplishments in the area of bioengineering, specializing in metabolic engineering, Sang Yup Lee, a distinguished professor of Chemical & Biomolecular Engineering at KAIST, was assigned as an advisory professor for the bioengineering department at Shanghai Jiao Tong University in China for five years from August 2013 to July 2018.
Together with Peking University and Tsinghua University, Shanghai Jiao Tong University is one of the top three universities in China.
The advisory professors carry out collaborated research programs in special areas and provide advice on education and research issues.
Professor Lee, a specialist in metabolic engineering, has initiated systems metabolic engineering which integrates metabolic engineering, systems biology, and synthetic biology and has applied it to various chemical production systems to develop bio fuel and many eco-friendly chemical production processes. Recently, he received the Marvin J. Johnson Award from the American Chemistry Society, the Charles Thom Award from the American Society for Industrial Microbiology, as well as the Amgen Biochemical Engineering Award. As a global leader in the area of bioengineering, Professor Lee is a member of the Korean Academy of Science & Technology, the National Academy of Engineering of Korea, the US National Academy of Engineering, and is the chairman of the Global Agenda Council on Biotechnology at the World Economic Forum.
2013.10.31 View 8196 -
Core Technology for Lithium Air Secondary Battery Developed
KAIST-Kyonggi University joint research team developed composite catalyst out of nano fiber and graphene
Five times improvement in capacity compared to lithium-ion secondary battery, driving 800 km at maximum
The core technology for lithium air secondary battery, the next generation high capacity battery, has been developed.
A research team formed by KAIST Department of Materials Science’s Professors Il-Doo Kim and Seokwoo Jeon, and Kyonggi University Department of Materials Science’s Professor Yong-Joon Park has created a lithium air secondary battery, with five times greater storage than the lithium-ion secondary battery, by developing a nano fiber-graphene composite catalyst. The research results are published in the August 8th online edition of Nano Letters.
A cathode of a lithium-ion battery consists of graphite and an anode of the battery consists of a lithium transition metal oxide. Lithium-ion batteries are widely used in mobile phones and laptops. However, lithium-ion batteries cannot support electric vehicles, providing energy for only 160 kilometers on one full charge. The lithium air secondary battery just developed by the research team uses lithium on the cathode and oxygen on the anode. It is earning a popular acknowledgement among the next generation secondary battery research community for having lightweight mass and high energy density.
However, lithium-ion batteries remain difficult to commercialize because of their short lifespan. Lithium and oxygen meet up to form lithium oxide (Li2O2) at discharge, and decompose again at charge. In a traditional lithium air battery, this cycle does not occur smoothly and results in high resistance, thereby reducing the lifespan of the battery. It is thus essential to develop high efficiency catalyst that facilitates the formation and decomposition of lithium oxides.
The research team used electric radiation to develop a nano composite catalyst by mixing cobalt oxide nano fiber and graphene. The performance of the battery has been maximized by settling nonoxidative graphene, which has high specific surface area and electrical conductivity, on catalyst active cobalt oxide nano fiber. Applying the nano composite catalyst on both poles of the lithium air battery resulted in an improved lifespan of over 80 recharge cycles with capacity greater than 100mAh/g, five times greater than a lithium ion battery. The newly discovered charge-discharge property is the highest among the reported performances of the lithium air battery so far.
The lithium air battery is cheap to make, as the main materials are metal oxide and graphene. “There are yet more issues to resolve such as stability, but we will collaborate with other organizations to open up the era of electronic vehicles,” said Professor Il-Doo Kim. “We hope to contribute to vitalizing the fields of next generation lithium air battery by leading nanocatalyst synthesis technology, one of the core materials in the fields of secondary battery,” Professor Kim spoke of his aspiration.
The graduate students participated in the research are Won-Hee Ryu, a postdoctorate at KAIST Department of Materials Science, Sungho Song, a PhD candidate at KAIST Department of Materials Science, and Taek-Han Yoon, a graduate student at Kyonggi University.
Picture I: Schematic Diagram of Lithium Air Battery Made of Nano Composite Catalysts
Picture II: Images of Cobalt Oxide Nano Fibers and Graphene Nano Composite Catalysts
Picture III: Images of Manufacturing Process of Cobalt Oxide Nano Fibers and Graphene Nano Composite Catalysts for Lithium Air Battery
2013.10.18 View 11044 -
Nanowire Made of Diverse Materials May Become Marketable
- Technology to commercialize nanowire developed after 2 years of industrial-academic joint research -
- 2 million strands of 50nm-width, 20 cm-length nanowire mass producible in 2 hours –
A South Korean joint industrial-academic research team has developed the technology to put forward the commercialization of nanowire that is only a few nanometers wide. It is expected to be applied in various fields such as semiconductors, high performance sensors, and biodevices.
In cooperation with LG Innotek and the National Nanofab center, Professor Jun-Bo Yoon, from KAIST Department of Electrical Engineering, developed the technology to mass produce nanowire at any length with various materials. The research results are published on the online edition of Nano Letters on July 30th.
Nanowire has a long linear structure with its width at 100 nanometers at maximum. It is a multifunctional material that has yet undiscovered thermal, electric, and mechanical properties. Nanowire is highly acclaimed as a cutting-edge material with unique nano-level properties that can be applied in semiconductors, energy, biodevices, and optic devices.
Previously, nanowires had an extremely low synthesis rate that required three or four days to grow few millimeters. It was therefore difficult to produce the desired products using nanowires. Moreover, nanowires needed to be evenly arranged for practical application, but the traditional technology required complex post-treatment, not to mention the arrangement was not immaculate.
The research team applied semiconductor process instead of chemical synthesis to resolve these issues. The team first formed a pattern greater that of the target frequency by using a photo-engraving process on a silicon wafer board whose diameter was 20 centimeters, then repeatedly reduced the frequency to produce 100 nm ultrafine linear grid pattern. Based on this pattern, the research team applied the sputtering process to mass-produce nanowires in perfect shapes of 50 nm width and 20 cm maximum length.
The new technology requires neither a lengthy synthesis process nor post-cleaning to attain a perfectly aligned state. Thus, academic and industrial circles consider the technology has high possibilities for commercialization.
“The significance is in resolving the issues in traditional technology, such as low productivity, long manufacturing time, restrictions in material synthesis, and nanowire alignment,” commented Professor Yoon on this research. “Nanowires have not been widely applied in the industry, but this technology will bring forward the commercialization of high performance semiconductors, optic devices, and biodevices that make use of nanowires.”
2013.10.18 View 8623 -
Prof. Jiyun Lee receives the U.S. FAA Achievement Award
- Ensures the safe operation of aircraft by monitoring ionospheric changes caused by solar storms.
KAIST’s Aerospace Engineering Department’s Professor Jiyun Lee has received an award from the U.S. Federal Aviation Administration (FAA), in recognition of her work for developing a Global Positioning System (GPS) reinforcing system and improving Satellite Navigation technology.
A GPS reinforcing system provides real-time GPS location and integrity information within 1m ranges to enable the accurate and safe navigation of aircraft. However, when the sun reaches Solar Max, the amount of total electron increases rapidly in the ionosphere. This also increases the possibility of the position error of navigation using the GPS reinforcing system. In order to solve this problem, Professor Lee built an Ionosphere Danger model that monitors the changes in the ionosphere due to solar storm. The model has been implemented into original monitoring software that secures the safety of the GPS reinforcing system user. The research results were published in July 2012 in Radio Science, one of the most prestigious international journals in the field of geophysical studies.
The FAA Technical Center successfully verified Professor Lee’s software and the software is currently being distributed and used by major institutions around the globe, including Eurocontrol. It is expected that the software will be standardized after consultations with international organizations in the recent future.
Professor Lee said, “Satellite navigation is the core of future navigation technology. Since its utilization has been extended to aviation, marine, transportation, telecommunications, finance and other major national infrastructures, it is crucial to ensure the performance and reliability of the system … In the future, cooperation between nations will help to develop the worldwide service of the GPS reinforcing system.”
2013.10.12 View 8610 -
Therapy developed to induce Angiogenesis of Retina
- Junyeop Lee, Graduate School of Medical Sciences and Engineering
- Research results expected to be applied for treatment of diabetic retinopathy
A major clue to treatment of retinovascular disease, which causes blindness, has been found. The key to protection of the retinal nerve is the angiogenic protein that promotes healthy retinal vessel growth around the retina, which usually does not receive blood supply readily. This research offers a beginning to the possible improvement of therapy for diabetic retinopathy1 and retinopathy of prematurity2. Also important to the research is the fact that the ophthalmology specialist researcher, currently undergoing professional training, provided the results.
KAIST Graduate School of Medical Sciences and Engineering’s Junyeop Lee is the opthalmology specialist, who carried out the research under supervision by academic advisers Gyuyeong Go and Wookjun Yoo. The Ministry of Science, ICT and Future Planning as well as the National Research Foundation of Korea have funded his research. The research results have been published as a cover paper on ‘Science Translational Medicine’ on 18th August. This journal is a sister publication of Science, which is prestigious in the field of translational medicine that ties the basic science with clinical medicine. (Thesis title: Angiopoietin-1 Guides Directional Angiogenesis Through Integrin αvβ5 Signaling for Recovery of Ischemic Retinopathy)
The traditional treatment of diabetic retinopathy includes laser photocoagulation to destroy the retinal tissues or antibody therapeutics, which prevents vessel proliferation and blood leaking. The advantage of antibody therapeutics3 is that it retains the retinal nerves, however, it is not the fundamental solution but merely a temporary one, which requires repeated treatments.
The research team identified that Angiopoietin-14 protein, known as essential for growth and stabilization of vessels, also plays an important role in retinal vessel growth. The protein protects the retinal nerves, as well as provides improvement for retinal ischemia5 that is the root cause of vision loss due to retinal hemorrhages. It is expected to become a key to finding fundamental treatment method – by providing sufficient blood supply to the retina, thereby preserving the retinal nerve functions.
The results show that administration of Angiopoietin-1 to retinopathy mouse model promotes growth of healthy vessel growth, further preventing abnormal vessel growth, retinal hemorrhage and vision loss due to retinal ischemia.
Junyeop Lee said, “This research has identified that Angiopoietin-1 is an important factor in retinal vessel generation and stabilization. The paradigm will shift from traditional treatment method, which prevents vessel growth, to a new method that generates healthy vessels and strengthens vessel functions.”
1 Diabetic retinopathy: This retinovascular disease is a diabetic complication caused by insufficient blood supply. It is the major causes of blindness in adults.
2 Retinopathy of prematurity: The retinal vascular disease that occurs in premature infants with incomplete retinal vascular development. It is also the most common cause of blindness in children.
3 Antibody Therapeutics: Antibody developed to selectively inhibit abnormal blood vessel growth and leakage. Typical antibody therapeutics is Avastin and Lucentis, which hinder vascular endothelial growth factor (VEGF).
4 Angiopoietin-1: A critical growth factor that induces the production of healthy blood vessels and maintains the stability of the created vessel.
5 Retinal ischemia: State of ailment where retinal tissue blood supply is not sufficient.
Figure 1. Retinopathy mouse models show that, in comparison to the control group, the VEGF-Trap treatment and Angiopoietin-1 (Ang1) treatment groups significantly suppresses the pathological vascular proliferation. In addition, the Ang 1 group show vessel growth toward the central avascular area (region of retinal ischemia), which is not observed in VEGF-Trap treatment.
Figure 2. Reduced retinal ischemia, retinal bleeding and blood vessel normalization by Angiopoietin-1. Retinal ischemic region (arrow) and retinal bleeding significantly reduced in the Angiopoietin-1 (Ang1) treatment model in comparison to control group (left). The newly generated vessels in Ang 1 model are structurally supported by perivascular cells as normal retinal vessels do (right).
2013.10.12 View 10511