nanotechnology

Metallic nano-particles light up another path towards eco-friendly catalysts

-Platinum clusters consisting 19 atoms perform 50 times higher catalytic activity-

Scientists at Tokyo Institute of Technology produced subnano-sized metallic particles that are very effective as catalysts for the oxidation of hydrocarbons. These catalysts can be as much as 50 times more effective than well-known Au-Pd bimetallic nanocatalysts.

Figure 1. Catalytic activity of subnano-sized metallic particles within dendrimers.

Figure 1. Catalytic activity of subnano-sized metallic particles within dendrimers.

Each dendrimer molecule hosts a subnano-sized metallic particle that allows for the oxidation of aromatic hydrocarbons, such as toluene (left), to produce useful organic compounds, such as benzoic acid (right). Oxygen molecules are represented in red.

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Teknologi Self-Assembly Blok Kopolimer

Perkembangan teknologi informasi dan alat elektronik yang pesat menuntut para ilmuwan untuk mengembangkan teknologi lithografi yang mampu membentuk pola sekecil mungkin dalam ukuran beberapa nanometer, proses yang mudah, dan biaya pembuatan yang murah. Teknologi elektron beam lithografi yang merupakan kandidat utama untuk melanjutkan pemanfaatan teknologi photolithografi yang mulai mendekati batas kemampuannya ternyata juga mulai mendekati batas kemampuannya.

Untuk mengatasi batasan-batasan tersebut kami melakukan penelitian dengan metode self-assembly menggunakan blok kopolimer. Metode ini memiliki banyak keunggulan dibandingkan teknologi electron beam lithografi yaitu prosesnya yang relatif sederhana, biayanya murah, dan mampu diaplikasikan dalam permukaan yang luas. Perkembangan penelitian baru-baru ini yang menunjukkan bahwa hasil proses self-assembly dengan menggunakan blok kopolimer bisa dikontrol dengan berbagai metode, seperti kimiawai, graphe-epitaksi dan lain-lain, semakin meningkatkan kemungkinan metode self-assembly ini menggantikan teknologi yang telah ada. Dengan mengontrol perbandingan struktur antara 2 homopolimer penyusunannya, berbagai macam pola seperti silinder, pillar, lamella, dan sebagainya seukuran nanodot bias diperoleh dengan mudah. (more…)

Future Electronic device : Molecular device

In recent daily life, human life could not be separated with electronic tools. The role of electronic tools in human life is very important to improve the quality and quantity of their life. Every year, their problems become more complicated, huge, and connected which cause the demands of the systems that could deal with various and big data in more faster way are inevitable. Thus, scientists are driven to realize electronic devices, which are smaller, faster, and more powerful.

Improvements in human life style quality also require the more high-function and user-friendly devices, such as more resolution, bright in any condition, transparent, and or foldable. However, the research in this field is mainly influenced by two factors nowadays. They are demand of electronic devices, which consume low power and use the material which is abundant available and not harmful to living things and ecosystem, and demand of multi-national electronic company to keep their business based on trends on human life style change, as their consumers. Actually, almost of researches are supported by them to create advanced products as money machine. (more…)

Ikut Ngeramein forum dan konferensi

Akhir2 ini ga tau habis waktunya, hampir ga ada waktu buat nulis blog. yg dlm bentuk draft pun udah ada 2 dan belum sempat saya selesaikan, bahasanya pun blm sempat diperbaiki.

Oh ya sekarang lg submit 2 abstract buat konferensi internasional AMDE, Advanced Micro-Device Engineering moga tembus dan bisa jadi paper. Judulnya masing

1. Self-Assembled nanodot fabrication by using diblock copolymer. (sbg author)

2. Guide Pattern for Long-Range-Order Nanofabrication of  Self-Assembled Block Copolymers. (sbg co-author)

mohon do’anya ya

ini cuplikan dr ikutan ngeramein forum PPI Jepang. (more…)