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		<title>MENJELAJAHI  DUNIA  NANO DENGAN AFM</title>
		<link>http://holid123.wordpress.com/2008/09/03/menjelajahi-dunia-nano-dengan-afm/</link>
		<comments>http://holid123.wordpress.com/2008/09/03/menjelajahi-dunia-nano-dengan-afm/#comments</comments>
		<pubDate>Wed, 03 Sep 2008 05:48:48 +0000</pubDate>
		<dc:creator>holid123</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Add new tag]]></category>
		<category><![CDATA[AFM]]></category>
		<category><![CDATA[nano]]></category>
		<category><![CDATA[newton]]></category>
		<category><![CDATA[sain]]></category>

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		<description><![CDATA[Selama beberapa ratus tahun ilmu fisika didominasi oleh teori newton yang menyatakan bahwa setiap zat terdiri dari molekul dan atom serta inti atom yang massif. Makin massif sel atom suatu zat, makin padat zat itu. Tetapi dalam beberapa puluh tahun terakhir, terjadi revolusi dalam ilmu fisika yaitu dengan ditemukannya fisika kwantum, yang menyatakan bahwa inti [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=holid123.wordpress.com&amp;blog=4709475&amp;post=3&amp;subd=holid123&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p class="MsoNormal" style="text-align:justify;">Selama<span> </span>beberapa<span> </span>ratus<span> </span>tahun ilmu<span> </span>fisika didominasi oleh teori newton yang menyatakan<span> </span>bahwa setiap zat terdiri dari molekul<span> </span>dan atom serta<span> </span>inti atom<span> </span>yang <span> </span>massif. Makin massif sel<span> </span>atom<span> </span>suatu<span> </span>zat, makin<span> </span>padat<span> </span>zat<span> </span>itu.</p>
<p class="MsoNormal" style="text-align:justify;">Tetapi<span> </span>dalam<span> </span>beberapa<span> </span>puluh<span> </span>tahun<span> </span>terakhir, terjadi<span> </span>revolusi<span> </span>dalam<span> </span>ilmu<span> </span>fisika<span> </span>yaitu<span> </span>dengan<span> </span>ditemukannya fisika kwantum,<span> </span>yang menyatakan<span> </span>bahwa <span> </span>inti<span> </span>atom<span> </span>dapat<span> </span>diuraikan,<span> </span>sehingga<span> </span>akhirnya<span> </span>hanya <span> </span>terdiri<span> </span>dari<span> </span>kumpulan<span> </span>energi<span> </span>yang <span> </span>dinamis<span> </span>saja.</p>
<p class="MsoNormal" style="text-align:justify;">Salah satu<span> </span>dampak<span> </span>dari<span> </span>revolusi<span> </span>dalam<span> </span>ilmu<span> </span>fisika<span> </span>ini<span> </span>adalah<span> </span>berkembangnya<span> </span>teknologi<span> </span>nano,<span> </span>yaitu<span> </span>suatu<span> </span>teknologi<span> </span>yang<span> </span>mampu memperkecil<span> </span>atom<span> </span>menjadi<span> </span>1/50.000 dari aslinya.</p>
<p class="MsoNormal" style="text-align:justify;">Sejarah<span> </span>singkat teknologi Nano</p>
<p class="MsoNormal" style="text-align:justify;">Ide awal teknologi Nano dicetuskan<span> </span>pada<span> </span>tahun<span> </span>1959<span> </span>oleh<span> </span>fisikawan<span> </span>pemenang<span> </span>hadiah<span> </span>Nobel yang bernama<span> </span>Richard Feyman.<span> </span>Dalam<span> </span>ceramahnya<span> </span>yang<span> </span>berjudul “ There is plenty of<span> </span>room at the bottom”, ia<span> </span>mengatakan<span> </span>bahwa<span> </span>materi<span> </span>dapat disusun atau diubah dengan<span> </span>cara<span> </span>memanipulasi dan menggabungkan<span> </span>atom-atom pembentuknya, misalnya<span> </span>dengan Nano Teknologi<span> </span>kita<span> </span>dapat<span> </span>membuat<span> </span>materi, seperti<span> </span>kayu<span> </span>dengan<span> </span>merangkai<span> </span>sejumlah<span> </span>atom untuk<span> </span>menggantikan<span> </span>kayu<span> </span>alam<span> </span>yang<span> </span>persediaannya<span> </span>kian<span> </span>menurun .</p>
<p class="MsoNormal" style="text-align:justify;">Pada saat itu ide Feynman tersebut<span> </span>dianggap<span> </span>sebagai<span> </span>suatu<span> </span>guyonan komunitas<span> </span>fisikawan dieranya. Namun ide<span> </span>Feynman<span> </span>tersebut menjadi<span> </span>bahan<span> </span>pemikiran<span> </span>serius oleh Binnig dan Rohrer.<span> </span>Yang atas<span> </span>kerja<span> </span>kerasnya itu akhirnya<span> </span>pada tahun 1981 mereka<span> </span>berhasil<span> </span>menemukan<span> </span>suatu<span> </span>alat<span> </span>yang<span> </span>dinamakan<span> </span>Scanning Tunnelling Microscopy (STM) yang<span> </span>berbasis<span> </span>pada<span> </span>efek quantum tunnellling. Pada tahun 1986, atas temuannya<span> </span>tersebut<span> </span>mereka<span> </span>mendapatkan penghargaan hadiah<span> </span>Nobel<span> </span>Fisika.</p>
<p class="MsoNormal" style="text-align:justify;">Beberapa<span> </span>bulan<span> </span>kemudian ,tahun 1986<span> </span>Binnig,<span> </span>Quarte<span> </span>dan Gerber memperkenalkan prototype yang<span> </span>pertama<span> </span>Atomic Force<span> </span>Microscope<span> </span>(AFM) yang bekerja atas dasar kontrol<span> </span>gaya atom di permukaan sampel dan<span> </span>cantilevernya.<span> </span></p>
<p class="MsoNormal" style="text-align:justify;">Manfaat AFM ini<span> </span>banyak<span> </span>sekali,sehingga benda-benda<span> </span>apa pun <span> </span>dapat<span> </span>dibuat<span> </span>sangat kecil, seperti<span> </span>telepon seluler, komputer, pesawat<span> </span>tv,<span> </span>radio dan<span> </span>alat-alat<span> </span>kedokteran.<span> </span>Sehingga<span> </span>dimungkinkan <span> </span>pengembangan<span> </span>teknologi<span> </span>transformasi <span> </span>dari<span> </span>rangsang-rangsang<span> </span>optik<span> </span>menjadi<span> </span>impuls-impuls<span> </span>digital<span> </span>yang<span> </span>biasa<span> </span>dikirim<span> </span>melalui<span> </span>saluran<span> </span>telekomunikasi<span> </span>ke<span> </span>seluruh<span> </span>dunia<span> </span>melalui<span> </span>satelit.</p>
<p class="MsoNormal" style="text-align:justify;">Dalam<span> </span>ilmu<span> </span>kedokteran, dengan adanya<span> </span>alat<span> </span>yang canggih<span> </span>yang<span> </span>super<span> </span>mini,<span> </span>yang<span> </span>didukung<span> </span>oleh<span> </span>teknologi <span> </span>nano,<span> </span>dapat<span> </span>dikembangkan<span> </span>untuk<span> </span>terapi<span> </span>berbagai<span> </span>penyakit<span> </span>yang <span> </span>semula<span> </span>hanya<span> </span>dapat<span> </span>dilakukan<span> </span>dengan<span> </span>pembedahan,<span> </span>kemoterapi, dan sebagainya.</p>
<p class="MsoNormal" style="text-align:justify;">Dalam sosial budaya, sudah<span> </span>barang<span> </span>tentu<span> </span>berpengaruh pada<span> </span>prilaku<span> </span>manusia.<span> </span>Untuk bersilaturrahmi tidak<span> </span>perlu<span> </span>lagi<span> </span>berkirim<span> </span>surat, cukup<span> </span>menggunakan<span> </span>fasilitas<span> </span>internet.<span> </span></p>
<p class="MsoNormal" style="text-align:justify;">Revolusi<span> </span>iptek tidak<span> </span>semua<span> </span>berdampak<span> </span>positif, ada<span> </span>juga<span> </span>dampak<span> </span>negatifnya,<span> </span>terutama<span> </span>pada<span> </span>norma<span> </span>sosial<span> </span>dan<span> </span>budaya.<span> </span>Teknologi<span> </span>yang<span> </span>canggih<span> </span>memungkinkan<span> </span>anak-anak<span> </span>dapat<span> </span>mengakses pornografi melalui<span> </span>internet.</p>
<p class="MsoNormal" style="text-align:justify;">Teknologi<span> </span>kloning<span> </span>manusia<span> </span>memicu<span> </span>permasalahan<span> </span>baru<span> </span>dalam<span> </span>etika,<span> </span>apakah<span> </span>teknologi<span> </span>ini<span> </span>memberikan<span> </span>kemashlahatan<span> </span>bagi<span> </span>umat <span> </span>atau<span> </span>sebaliknya.</p>
<p class="MsoNormal" style="text-align:justify;">Dari<span> </span>uraian<span> </span>tersebut<span> </span>di atas<span> </span>dapat disimpulkan<span> </span>bahwa<span> </span>umat<span> </span>manusia<span> </span>sedang<span> </span>berada<span> </span>di tengah revolusi<span> </span>iptek yang<span> </span>dahsyat<span> </span>dan<span> </span>berlangsung<span> </span>sangat<span> </span>cepat.<span> </span>Masalah<span> </span>norma<span> </span>dan<span> </span>etika<span> </span>akan menghadapi<span> </span>tantangan<span> </span>sangat<span> </span>besar, dan<span> </span>hanya<span> </span>manusia-manusia<span> </span>yang<span> </span>cerdas<span> </span>dan<span> </span>bermorallah yang<span> </span>unggul dalam<span> </span>revolusi ini.<span> </span></p>
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		<title>Hello world!</title>
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		<pubDate>Wed, 03 Sep 2008 05:25:46 +0000</pubDate>
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			<content:encoded><![CDATA[<p>Welcome to <a href="http://wordpress.com/">WordPress.com</a>. This is your first post. Edit or delete it and start blogging!</p>
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