해양 생물 유래 독소는 그 치명적인 유독성으로 인해 비단 인류의 건강 뿐만 아니라 양식, 어업, 해양 생태계 전반에 걸쳐 경제적 손실을 비롯한 부정적인 영향을 미친다. 하지만, 종래에 사용되던 해양 독소 검출법만으로는 이를 다 파악하여 위협을 미연에 방지하기에는 아직 부족한 실정이다. 본 논문에서는 해산물의 해양 독소 잔존 여 부를 판별하기 위해 종래에 사용되었던 시험법들의 한계를 개선하고자 각종 나노 재료 및 신규 기술들이 도입된 신속 검출법들에 대해 조사했으며, 대표적인 연구 결과들을 선정하여 사용한 나노 입자 및 전략에 대해 서술하였 다. 특히 이러한 생물 유래 독소의 검출 기술을 대중화시키고 상용화하기 위해서는, 이를 생성하는 생물군으로부터 독소를 추출하는 전처리 과정을 간소화하는 것이 매우 중요하다. 해당 문제를 해결하고자 다양한 연구에서 표적 독소와 특이적으로 결합하는 항체를 고정화한 자성 나노 입자 기반의 전처리법을 보고했으며, 더 나아가 자성 나노 입자의 촉매 특성까지 활용해 검출 감도를 높이는 다양한 연구들도 발표되었다. 또한, 기존 효소 기반의 비색 법의 검출 한계를 낮추고 검출 시스템의 안정성을 높이기 위해 양자점과 같은 형광 나노 입자를 도입하는 보고들도 있었다. 이 외에도 압타머와 나노 입자 복합체 기반의 전기화학 측정법 및 신규 기술들을 사용하고자 하는 연구들 도 보고되었다. 하지만 해양 환경의 변화에 따라 생성된 신종 독소에 대한 대처는 아직 미흡한 실정이므로, 해양 독소 유도체 또한 아울러 진단 가능한 검출 기술에 대한 후속 연구가 필요하다.

Recently, interest in technology for eco-friendly energy harvesting has been increasing. Polyvinylidene fluoride (PVDF) is one of the most fascinating materials that has been used in energy harvesting technology as well as micro-filters by utilizing an electrostatic effect. To enhance the performance of the electrostatic effect-based nanogenerator, most studies have focused on enlarging the contact surface area of the pair of materials with different triboelectric series. For this reason, one-dimensional nanofibers have been widely used recently. In order to realize practical energy-harvesting applications, PVDF nanofibers are modified by enlarging their contact surface area, modulating the microstructure of the surface, and maximizing the fraction of the β-phase by incorporating additives or forming composites with inorganic nanoparticles. Among them, nanocomposite structures incorporating various nanoparticles have been widely investigated to increase the β-phase through strong hydrogen bonding or ion-dipole interactions with -CF2/CH2- of PVDF as well as to enhance the mechanical strength. In this study, we report the recent advances in the nanocomposite structure of PVDF nanofibers and inorganic nanopowders.

새로운 가능성의 탐험(Exploration)과 기존 확실성의 활용(Exploitation)간 균형은 조직 학습뿐 아니라 전략, 혁신, 연구개발의 중요한 문제다. 기술의 융복합화 트렌드 속에 기업들은 지속적 경쟁 우위를 위해 기술 지식 자산을 가급적 다양하게 보유하려는 동시에 특정 분야에 깊은 기술 역량을 가지려 한다. 기업들은 기술 포트폴리오 전략 고민하지만, 기술 속성에 대한 고려는 제한적이다. 첨단 기술의 대표인 나노기술은 기존의 제품 및 사업 중심 기술과 달리 다양한 분야에 활용되는 일반목적기술 또는 플랫폼 기술 속성을 가지고 있다. 본 연구는 다국적 기업들이 플랫폼 기술로서 나노기술에 대해 탐험과 활용, 즉 다각 화와 특정 기술 우위 관점의 포트폴리오 전략이 혁신 및 재무 성과에 어떤 영향을 미치는지를 패널 데이터 기반으로 다중 회귀 분석을 하였다. 본 연구의 실증 분석결과는 기존의 제품 기술들과 달리, 플랫폼 기술로서의 나노기술은 다각화와 특정 기술 우위가 증가할수록 혁신 성과와 재무 성과에 모두 긍정적인 영향을 주는 것으로 나타났다. 또한 나노기술의 포트폴리오 형태, 즉 다각화와 전문성 기반의 특정 기술 우위 중에, 다각화된 나노기술 포트폴리오가 특정 기술에 우위를 갖는 경우보다 혁신 성과와 재무 성과를 향상시 키는 데 더 많은 기여를 하고 있다는 결과를 얻었다. 이는 기업들이 자원의 제약하에서 일반목적 기술의 경우 포트폴리오 전략에 어떻게 추구하는 것이 효율적인지를 시사한다.

Layered-double hydroxide (LDH)-based nanostructures offer the two-fold advantage of being active catalysts with incredibly large specific surface areas. As such, they have been studied extensively over the last decade and applied in roles as diverse as light source, catalyst, energy storage mechanism, absorber, and anion exchanger. They exhibit a unique lamellar structure consisting of a wide variety of combinations of metal cations and various anions, which determine their physical and chemical performances, and make them a popular research topic. Many reviewed papers deal with these unique properties, synthetic methods, and applications. Most of them, however, are focused on the form-factor of nanopowder, as well as on the control of morphologies via one-step synthetic methods. LDH nanostructures need to be easy to control and fabricate on rigid substrates such as metals, semiconductors, oxides, and insulators, to facilitate more viable applications of these nanostructures to various solid-state devices. In this review, we explore ways to grow and control the various LDH nanostructures on rigid substrates.

This study aims to objectively measure the efficiency of nanotechnology R&D programs by systematically evaluating the inputs and outputs of nanotechnology R&D activities and to find implications for improving the efficiency of nanotechnology R&D programs. Data on input factors such as R&D investment, R&D manpower, R&D period, and output factors such as paper, patent, and commercialization for R&D projects which started from 2008 or afterwards and ended by 2011 are gathered through National Science and Technology Knowledge Information Service, which are used for efficiency evaluation. In this study, we analyzed R&D efficiency in detailed technology units in depth. The process taken in this study is as follows. First, the basic statistics of input and output factors to compare and analyze R&D investment, R&D manpower, R&D period, paper, patent, and commercialization status by technology unit are analyzed. Next, DEA models are utilized to derive the overall efficiency, pure technology efficiency, and scale efficiency by conducting the efficiency evaluation for each technology unit, from which implications for strategic budget allocation are derived. In addition, partial efficiency evaluation is conducted to identify advantages and disadvantages of each technology unit. In turn, cluster analysis is performed to identify similar technology units, from which implications for efficiency improvement are derived.

분리막에 관한 최신의 연구에서는 다양한 분야의 기술을 분리막 분야에 차용하여, 분리막의 성능을 증진시키고 있다. 특히 나노기술과 분리막 제조 기술의 융합연구는 최신 분리막 연구 분야의 하나로 주목받고 있으며, 다양한 나노-하이브리드 분리막이 연구되고 있다. 본 연구에서는 1) 패터닝 기술을 도입한 패턴 분리막의 제조 - 나노 기술의 하나인 패터닝 기술을 분리막 제조 공정에 융합하여, 표면이 패턴화된 분리막을 제조하고 그 성능을 평가하였다. 2) MIL-100(Fe)/CS 등의 나노 입자를 포함하는 분리막의 제조 - 특별한 목적을 가지고 있는 나노입자(MIL-100(Fe)/CS의 경우 항균성 및 친수성)를 분리막 제조에 적용하여 분리막의 막오염 저감 효과를 증진한 분리막을 제조하였다. 에 대한 연구 결과를 발표하고자 한다.

This paper reviews on nano-materials as part of a study to apply nano-technology related technologies to the construction field. First, the synthesis method of nano-materials was examined. Secondly, the mechanical application method of nano-materials was investigated. Finally, the analysis method of nano-materials was investigated.

Our research is aimed at predicting recent trend and leading technology for the future and providing optimal Nano technology trend information by analyzing Nano technology trend. Under recent global market situation, Users’ needs and the technology to meet these needs are changing in real time. At this point, Nano technology also needs measures to reduce cost and enhance efficiency in order not to fall behind the times. Therefore, research like trend analysis which uses search data to satisfy both aspects is required. This research consists of four steps. We collect data and select keywords in step 1, detect trends based on frequency and create visualization in step 2, and perform analysis using data mining in step 3. This research can be used to look for changes of trend from three perspectives. This research conducted analysis on changes of trend in terms of major classification, Nano technology of 30’s, and key words which consist of relevant Nano technology. Second, it is possible to provide real-time information. Trend analysis using search data can provide information depending on the continuously changing market situation due to the real-time information which search data includes. Third, through comparative analysis it is possible to establish a useful corporate policy and strategy by apprehending the trend of the United States which has relatively advanced Nano technology. Therefore, trend analysis using search data like this research can suggest proper direction of policy which respond to market change in a real time, can be used as reference material, and can help reduce cost.

In this paper, we compared the efficiencies of national R&D investments between NT (Nanotechnology) areas in terms of papers, patents, and commercializations, and found ways to improve the efficiencies of national R&D investments for each NT area. This is in response to huge R&D investments government has made recently in NT areas.Here, we collected data on investments, papers, patents, and commercializations for the R&D projects in NT areas through National Science & Technology Information Service. Based on the data, we analyzed the investment and performances (papers, patents, and commercializations) for each NT area, calculated the efficiency for each NT area, and compared the efficiencies between NT areas. Next, using cluster analysis, we identified several NT areas with similar characteristics in terms of paper efficiency, patent efficiency and commercialization efficiency. Finally, we derived implications for the efficiency enhancement for each grouping.The cluster analysis showed that there could be two groups, one being low in terms of technological outcome (papers and patents) efficiencies and high in terms of commercialization efficiencies, while the other being high in terms of technological outcome (papers and patents) efficiencies and low in terms of commercialization efficiencies. Therefore, the strategy for one group calls for support for technology transfer or technology introduction from other R&D performers and grant of guidance for improving R&D performers’ commercialization ability to other R&D performers while the strategy for the other group calls for R&D support for transfer of technology to other R&D performers, activation of technology transfer and support for commercialization of R&D performers.

Graphene has shown exceptional properties for high performance devices due to its high carrier mobility. Of particular interest is the potential use of graphene nanoribbons as field-effect transistors. Herein, we introduce a facile approach to the fabrication of graphene nanoribbon (GNR) arrays with ~200 nm width using nanoimprint lithography (NIL), which is a simple and robust method for patterning with high fidelity over a large area. To realize a 2D material-based device, we integrated the graphene nanoribbon arrays in field effect transistors (GNR-FETs) using conventional lithography and metallization on highly-doped Si/SiO2 substrate. Consequently, we observed an enhancement of the performance of the GNRtransistors compared to that of the micro-ribbon graphene transistors. Besides this, using a transfer printing process on a flexible polymeric substrate, we demonstrated graphene-silicon junction structures that use CVD grown graphene as flexible electrodes for Si based transistors.

Recently, nanotechnology has grown as one of the leading science technology along with other converging technologies such as biology, information, medicine etc., bringing the continuous investment of the government in nano-related field. However, it is difficult to measure and evaluate the performance of the national research and development programs because of the multidimensional character of the expected outcomes. This study aims to measuring efficiency of the national nanotechnology research and development programs using DEA model. The decision making units are nine nano-related ministries including the Ministry of Science, ICT and Future Planning. The input variables are total expenditure, number of the programs and average expenditure per program. The output variables are science, technology and economic indicator, and the combination of these outputs are respectively measured as seven different DEA cases. The Ministry of Science, ICT and Future was the first efficient ministry in total technical efficiency. Ministry of Agriculture, Food and Rural Affairs and the Ministry of Food and Drug Safety were efficient in pure technical efficiency, when the Ministry of Commerce Industry and Energy took the first in the scale efficiency. The program efficiency was affected by organizational characteristics such as the institution’s scale, the concentration of the research paper or the patent, technology transfer or the commercialization. The result of this study could be utilized in development of the policy in the nanotechnology and the related field. Furthermore, it could be applied for the modification of expenditure management or the adjustment of the research and development programs’ input and output scale for each ministry.

나노섬유는 기존 합성 섬유와 비교하여 섬유의 직경을 획기적으로 줄여줌으로써 표면적을 비약적으로 향상시킬 수 있어 각종 필터 및 분리막, 전자 기기의 벤 트용 소재, 투습방수용 의류 등 산업 전 분야에 적용이 시도되고 있는 소재이다. 전기방사 기술은 섬유의 직경과 세공 등 물성과 성능을 쉽게 설계, 적용할 수 있어 고품질, 고성능의 멤브레인을 제공하고 있으나, 경제성을 갖춘 양산규모의 전기방사 기술이 어려워 긴 역사에 비해 기술적 성취도는 매우 낮은 상태이며, 부직포 타입으로 인해 응용분야의 한계가 있었다. 최근, 나노섬유를 장섬유 섬 유사로 개발하여 다양한 분야에 적용을 시도하려는 연구가 활발하게 진행되고 있다. 본 고에서는 다양한 나노섬유 양산화 기술 동향과 응용분야, 나노섬유 기반 장섬유 섬유사를 제조하는 최신 기술동향에 대해서 소개하고자 한다.