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·¢ÐÅÈË: jn74612001 (potty training layman), ÐÅÇø: Chemistry
±ê Ìâ: ¹¤Òµ½ç×÷Ñо¿ºÍÏóÑÀËþÀï×÷Ñо¿µÄ²»Í¬
·¢ÐÅÕ¾: BBS δÃû¿Õ¼äÕ¾ (Fri May 2 01:58:24 2008)

1¡£³É±¾¡£´óѧʵÑéÊÒÀï×öʵÑéÓжàÉÙÈ˻ῼÂÇʵÑé³É±¾£¿ÓжàÉÙÀϰå»áÒòΪÊÔ¼ÁÌ«¹ó
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projectËûÃÇÄDZ߾Íͨ²»¹ý¡£
2¡£scaling up.´óѧʵÑéÊÒÀï×ö¸ö·´Ó¦Óü¸¿Ë»ò¼¸Ê®ºÁ¿ËÔ­ÁÏ£¬ÔÚ1x1cmµÄsubstrateÉÏ
³¤Ä¤»ò×ödevice£¬½á¹û²»´í£¬¾Í·¢ÎÄÕÂÁË¡£¹«Ë¾Àï¾ÍÒª¿¼ÂÇÈç¹û°ÑÕâ¸öprocessÒÆÖ²µ½
12 inch wafer »ò1x1m µÄsubstrateÉÏ£¬ÊÇ·ñÄܵÃͬÑùºÃµÄ½á¹û¡£Èç¹û²»ÄÜscale up£¬
½á¹ûÔÙºÃÒ²Êǰ××ö¡£ÓжàÉÙ½ÌÊÚдpaperµÄʱºò¿¼Âǹýscale up µÄÎÊÌ⣿
3¡£reproducibility.×öÁË10¸öʵÑ飬ֻÓÐ5¸ö¿ÉÒÔÖØ¸´£¬´ó¼ÒÍùÍù»áÏë³ö¸÷ÖÖÀíÓɰÑ5
¸ö²»ºÃµÄ½á¹û¸øÌÞ³ý£¬½á¹ûдpaperµÄʱºòÖ»°Ñ5¸öºÃ½á¹ûд½øÈ¥ÁË¡£¹«Ë¾ÀïÕâÑù¸ã¾ÍÍê
µ°ÁË£¬×ö³öÀ´µÄ²úƷÿ´Î¶¼²»Ò»ÑùË­¸ÒÒª£¿
4¡£yield. Ö»ÓÐ1%µÄ²úÂÊÖ»Òª½á¹ûºÃÕÕÑù¿ÉÒÔ·¢paper.¹«Ë¾À﹤ҵ»¯Éú²úÈç¹ûÖ»ÓÐ1%µÄ
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5¡£¶¾º¦¡£´óѧÀï×öʵÑé»ù±¾ÉÏʲôʵ¼Ê¶¼¸ÒÓá£ÎÒ¼û¹ýÓÐÈËÔÚʵÑéÊÒÀïÓÃÑÎËáºÍÇ軯
ÄÆÖÆÇâÇèËáµÄ£¬¶øÇÒºÜÉÙ¿¼ÂÇ·ÏÆúÎïµÄÅÅ·Å¡£ÔÚ¹«Ë¾Àï¾Í±ØÐ뿼ÂÇ¡£
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¾¿¾Í²»»áͶ×Ê¡£´óѧÀïºâÁ¿Ò»¸ö½ÌÊÚµÄˮƽÖ÷Òª¾ÍÊÇ¿´paperµÄÖÊÁ¿ºÍÊýÁ¿£¬ÓÐÁËpaper
µ×Æø²Å×㣬ÖÁÓÚÑо¿ÊÇ·ñʵÓ㬲»ÔÚ´ó¶àÊý½ÌÊڵĿ¼ÂÇ·¶Î§Ö®ÄÚ£¬¾¡¹ÜÔÚдpaperºÍ
proposalʱºòËûÃÇ»á°Ñ×Ô¼ºÑо¿µÄÓ¦ÓüÛÖµ´µµÃÌ컨ÂÒ×¹¡£
ËùÒÔÏ´ÎÔÚNanoLettÉÏÔÙ¿´µ½½ÌÊÚÃǺöÓÆ×Ô¼ºµÄ²ÄÁ϶àôµÃÓÐʵÓÃǰ¾°£¬ÄãÒªÐÄÀïÓÐÊý
£¬Õâǰ¾°ÓÐ99.99%µÄ¿ÉÄÜÐÔÊÇʵÏÖ²»Á˵ģ¬Ô½ÊÇfancyµÄ¶«Î÷Ô½²»ÊµÓá£

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·¢ÐÅÈË: wqs (³¤Éú»¯,¾§°¢¶·;¿ÕʯÓÍ, Öйú(Ë®ÖÐ)), ÐÅÇø: Chemistry
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·¢ÐÅÕ¾: BBS δÃû¿Õ¼äÕ¾ (Fri May 2 15:26:21 2008)

Not meant to pour cold water on this. But the below comments only applies to
certain chemical industries. For example, the drug discovery program (Med
Chem) is almost the exact opposite. ¸ôÐÐÈç¸ôɽ£¬every industry is unique. It
is very hard to draw a univeral picture.
*** indicates my take on the drug discovery industry (process chemistry is
excluded because it is on the development side)

1¡£³É±¾¡£´óѧʵÑéÊÒÀï×öʵÑéÓжàÉÙÈ˻ῼÂÇʵÑé³É±¾£¿ÓжàÉÙÀϰå»áÒòΪÊÔ¼ÁÌ«¹ó
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projectËûÃÇÄDZ߾Íͨ²»¹ý¡£

***: Don't care cost. Never drop project due to high cost. As a matter of
fact, the cost for research is nothing compared to massive clinical trials
and marketing.

2¡£scaling up.´óѧʵÑéÊÒÀï×ö¸ö·´Ó¦Óü¸¿Ë»ò¼¸Ê®ºÁ¿ËÔ­ÁÏ£¬ÔÚ1x1cmµÄsubstrateÉÏ
³¤Ä¤»ò×ödevice£¬½á¹û²»´í£¬¾Í·¢ÎÄÕÂÁË¡£¹«Ë¾Àï¾ÍÒª¿¼ÂÇÈç¹û°ÑÕâ¸öprocessÒÆÖ²µ½
12 inch wafer »ò1x1m µÄsubstrateÉÏ£¬ÊÇ·ñÄܵÃͬÑùºÃµÄ½á¹û¡£Èç¹û²»ÄÜscale up£¬
½á¹ûÔÙºÃÒ²Êǰ××ö¡£ÓжàÉÙ½ÌÊÚдpaperµÄʱºò¿¼Âǹýscale up µÄÎÊÌ⣿

***: Don't care scalability. My job is to make a couple of miligram for
biological assay.

3¡£reproducibility.×öÁË10¸öʵÑ飬ֻÓÐ5¸ö¿ÉÒÔÖØ¸´£¬´ó¼ÒÍùÍù»áÏë³ö¸÷ÖÖÀíÓɰÑ5
¸ö²»ºÃµÄ½á¹û¸øÌÞ³ý£¬½á¹ûдpaperµÄʱºòÖ»°Ñ5¸öºÃ½á¹ûд½øÈ¥ÁË¡£¹«Ë¾ÀïÕâÑù¸ã¾ÍÍê
µ°ÁË£¬×ö³öÀ´µÄ²úƷÿ´Î¶¼²»Ò»ÑùË­¸ÒÒª£¿

***: Don't care about reproducibility. I only care about getting the final
product, even for only once. The compound may well be useless, so there is
no point to develop a robust experiment.

4¡£yield. Ö»ÓÐ1%µÄ²úÂÊÖ»Òª½á¹ûºÃÕÕÑù¿ÉÒÔ·¢paper.¹«Ë¾À﹤ҵ»¯Éú²úÈç¹ûÖ»ÓÐ1%µÄ
²úÂÊ£¬ÒªËüºÎÓã¿

***: Again, only tiny amount is required. We frequently have reations below
5% yield. Some even below <1%. No big deal, all we want is a couple of
miligram for initial test.

5¡£¶¾º¦¡£´óѧÀï×öʵÑé»ù±¾ÉÏʲôʵ¼Ê¶¼¸ÒÓá£ÎÒ¼û¹ýÓÐÈËÔÚʵÑéÊÒÀïÓÃÑÎËáºÍÇ軯
ÄÆÖÆÇâÇèËáµÄ£¬¶øÇÒºÜÉÙ¿¼ÂÇ·ÏÆúÎïµÄÅÅ·Å¡£ÔÚ¹«Ë¾Àï¾Í±ØÐ뿼ÂÇ¡£

***: Any chemical under sun is usable for Med Chem lab. We frequently use
large amount of cyanide, phosgene and other highly toxic chemicals. Again,
our sole purpose is to get there fast and we don't care how we get there.

¹é¸ùµ½µ×£¬¹¤Òµ½çµÄÑо¿¿¼ÂǵÄÊÇʵÓã¬×ö³öÀ´µÄ¶«Î÷ûÓÐÊг¡»ò³É±¾Ì«¸ß£¬ÕâÑùµÄÑÐ
¾¿¾Í²»»áͶ×Ê¡£´óѧÀïºâÁ¿Ò»¸ö½ÌÊÚµÄˮƽÖ÷Òª¾ÍÊÇ¿´paperµÄÖÊÁ¿ºÍÊýÁ¿£¬ÓÐÁËpaper
µ×Æø²Å×㣬ÖÁÓÚÑо¿ÊÇ·ñʵÓ㬲»ÔÚ´ó¶àÊý½ÌÊڵĿ¼ÂÇ·¶Î§Ö®ÄÚ£¬¾¡¹ÜÔÚдpaperºÍ
proposalʱºòËûÃÇ»á°Ñ×Ô¼ºÑо¿µÄÓ¦ÓüÛÖµ´µµÃÌ컨ÂÒ×¹¡£
ËùÒÔÏ´ÎÔÚNanoLettÉÏÔÙ¿´µ½½ÌÊÚÃǺöÓÆ×Ô¼ºµÄ²ÄÁ϶àôµÃÓÐʵÓÃǰ¾°£¬ÄãÒªÐÄÀïÓÐÊý
£¬Õâǰ¾°ÓÐ99.99%µÄ¿ÉÄÜÐÔÊÇʵÏÖ²»Á˵ģ¬Ô½ÊÇfancyµÄ¶«Î÷Ô½²»ÊµÓá£

***: Optimistically speaking, 99.99% of the compounds a medicinal chemists
makes will not be a drug. Once the data are collected, the compound and the
chemistry are useless. Even for processing research, people run very high-
cost chiral HPLC on a large scale just to be able to deliver on time. Time
is everything. Once we have a promising drug candidate identified, anything
else is fixable later.
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yanger263

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