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Èç¹ûÄú×î½üÓн«Òª·¢±íµÄ¹¤×÷£¬Óë ¡±·ÖÎö»¯Ñ§¡° Ïà¹ØµÄ£¬±ÈÈç microfluidic, biosensor, single-molecule detection / imaging, ultra-sensitive detection, pathogen / bacterial, RNA£¬FRET£¬molecular beacon, LDR  µÈµÈ£¬ ÄÜ·ñÓÑÇéÒýÓÃÒ»ÏÂÎҵŤ×÷ÄØ£¿ Èç¹ûÊÇ×ÛÊöÀàµÄÎÄÕ£¬±ÈÈç review, book chapter  ¾ÍÌ«ºÃÁË£¬ÒòΪ²»ÊÜÆª·ùÏÞÖÆ£¬¿ÉÒÔÊʵ±Õ¹¿ªÌÖÂÛһϣ¬ÍÚ¾òһϹ¤×÷µÄÒâÒå¡£ÒýÓõÄʱºò£¬ÄÜ·ñ°ÑÎÒÏà¹ØµÄ¼¸ÆªÎÄÕ£¬°üÀ¨ paper, dissertation, conference paper£¬Ò»²¢·ÅÔÚ footnote ÀïÄØ£¿

ÒÔÏÂÊÇÎÒ¹¤×÷µÄ outline, ¹©Äú²Î¿¼£º
µ±È»£¬Èç¹ûÄú¸ÐÐËȤÎÒµÄÑо¿£¬ÄÇÊÇÔÙ»¶Ó­²»¹ýÁË£¬»¶Ó­Ö¸Õý£¡ ¿ÉÒÔ°´ÕÕÄúµÄÀí½â£¬¾¡Çé½øÐÐÕýÃæÆÀ¼Û¡£

££ Peng et al. discovered COC (cylic olefin copolymer) can be used in microfluidic chip for single fluorescence molecule detection due to its extremely low auto-fluorescence and superior optical properties (1) (2)(3)(4) and he fabricated microfluidic chip with COC to successfully detect single fluorescence molecule signal arising from rare bacteria sample and mRNA transcripts of low abundance.

££ Peng et al.  first demonstrated that a LDR assay (combining molecular beacon construction and single-pair FRET readout) can be successfully run on this chip after simple surface modification for pathogen detection £¨2£©(3), and mRNA expression analysis £¨2£©(4) at single-molecule resolution.

££ Peng et al. designed an innovative molecular beacon probe that reshape itself into a closed loop to turn on the fluorescence signal whenever a target DNA or RNA sequence is captured (2)(3)(4). This strategy allows superior signal-to-noise ratio in single-molecule detection and the molecular beacon probe has been used to detect DNA and mRNA transcripts at ultra-low concentrations.

££ Peng et al. designed a LDR assay coupled with spFRET readout to allow near real-time answer and the assay has been utilized to detection bacteria pathogen in as short as 2.6 min.

££ The advantage of on-chip LDR is linear amplification of rare target DNA/RNA that enables near real-time result and un-biased quantification. This is very useful in low copy # mRNA detection £¨2)(4).

££ In addition, Peng et al.  designed a compact single molecule detection platform with integrated optical readout for bacterial analysis. This laser illumination and fluorescence collection from single molecules are enabled by a pair of optical fibers that are embedded into the chip and placed in an orthogonal way to minimize the footprint of the device (5)(6).

££ Peng et al.  improved and optimized the prism-based TIRF setup for multiple color single molecule imaging with improved sensitivity and signal-to-background ratio (7).

Here is the Reference:
(1) https://www.researchgate.net/pub ... c_Microfluidic_Chip    (downloadable)
(2) https://etd.lsu.edu/docs/available/etd-04272012-032346/
(3) https://pubs.acs.org/doi/abs/10.1021/ac101843n
(4) https://pubs.acs.org/doi/abs/10.1021/ac400729q
(5) https://www.researchgate.net/pub ... _Molecular_Analysis
(6) https://pubs.rsc.org/en/content/articlehtml/2012/an/c1an15658f
(7) https://www.researchgate.net/pub ... ng_Prism-Based_TIRF


ÈçÓоßÌåÎÊÌ⣬»¶Ó­À´ e-mail ½»Á÷£¬ qyunpeng@hotmail.com

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