Angew Chem Int Ed Engl 1999,
(K${7\"}7A&Z&D植提之家,植提空间,中国植提论坛,植提论坛,植提网38:941-945.
)@;`4[&Q2Y.r.n3~www.plantextra.comKelley SO, Jackson NM, Hill MG, Barton JK: Long-range electron
)d$K0s3Y3o*M#|)r中国植物提取物论坛transfer through DNA films. www.plantextra.com z#L#C5T:k1n0O.^2X5X'w"s(L

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Angew Chem Int Ed Engl. 2005 Aug 26;44(34):5464-5467中国植提论坛|植提网5K9O)n*q-n8d ]
A DNA-protein nanoengine for "on-demand" release and precise delivery of molecules.
&^9q!v3V6`)}2A'_植提之家,植提空间,中国植提论坛,植提论坛,植提网植提之家,植提空间,中国植提论坛,植提论坛,植提网!X$M1t)L1N)E5?$|

5L7R$?"a/o1`7i0D9G ~中国植提论坛|植提网Angew Chem Int Ed Engl. 2004 Oct 11;43(40):5335-8.www.plantextra.com"R$I:`%P$`&@0E
A DNA nanomachine based on a duplex-triplex transition中国植提论坛|植提网(X6n&F(_;k-M,s
植提之家,植提空间,中国植提论坛,植提论坛,植提网/T/O5C3G)s2J4g:N$O

4~,[5s)T*G'NAngew. Chem., Int. Ed. 2003, 42(46), 5734-5736
3@;X0g&E#]*W }A Proton-Fuelled DNA Nanomachine,
!q)\0b-n(p,g*s中国植提论坛|植提网.T c;L8P9T'n)j0y2M6q,?&e
Angew Chem Int Ed Engl. 2004 Jul 5;43(27):3554-7.
)@.Y+|!v:jAn Autonomous DNA Nanomotor Powered by a DNA Enzyme
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&A2B-v ?&K+N0^9R;DAngew. Chem. Int. Edn 42, 4342–4346 (2003).
f7t+g3A2x:FA two-state DNA lattice switched by DNA nanoactuator.植提之家,植提空间,中国植提论坛,植提论坛,植提网/m0D,|1I4x,A5_)T7{ {6L
Feng, L., Park, H., Reif, J. H. & Yan, H.
&@ N0b7G'o+U:c
:o W8@2b'v Y6N
)C1L-X&h(u6g V%E;c"R#?-L"A中国植物提取物论坛Angew. Chem. Int. Edn 43, 6469–6471 (2004).
!J!q2k5Z0zHazarika, P., Ceyhan, B. & Niemeyer, C. M. Reversible switching of DNA-gold nanoparticle&g/}(f H3S:h6j,Y0\+Z#b
aggregation.

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在Wiley数据库里就有啊，这个期刊Wiley不是收集着嘛，很简单的，献给你这一篇
0B0^,B$Z4ywww.plantextra.comA Proton-Fuelled DNA Nanomachine***r6v5O1E+['X8K(@2E

&P'u(i&O&e2M8d#Q中国植物提取物论坛Dongsheng Liu and Shankar Balasubramanian*中国植提论坛|植提网'A:L/H"}+X#g-f1j/E
The molecular-recognition properties of DNA are sufficiently
*E*@*Z2C/{:p%a:F+?'j+D中国植提论坛|植提网well understood to enable the self-assembly of defined
6j%N#P)S)a+f(a7n中国植物提取物论坛structures and devices on the nanometer scale.[1,2] DNA植提之家,植提空间,中国植提论坛,植提论坛,植提网/b9i(A.X*H9h
machines based on a competing hybridization mechanism%y2~"w;H)`/p*|
have been reported.[2] These nanomachines are fuelled by中国植提论坛|植提网.^%U7T1u4a+R1E'U'l.C#R
complementary oligonucleotides and accumulate doublestranded
4~#k(S3w%F4nwww.plantextra.comDNA waste products that poison the system.中国植提论坛|植提网1P3I'T;P8B&U8e(g$w
Herein we report a novel molecular machine driven by a9G.A"m#b'_1t2p#Z
distinct mechanism that is fast and relatively clean. It is based
K&E;F*i/I9b j&V植提之家,植提空间,中国植提论坛,植提论坛,植提网on a four-stranded DNA structure, called the i-motif, that can
3q6P,F$v1H-N Y(T/E!E%Obe formed from sequences containing stretches of cytosine植提之家,植提空间,中国植提论坛,植提论坛,植提网(w'u&J#L+H,K
(C) residues.[3–7] In this structure protonated C forms a-K+K3W,^ R9m+h'?!Q3n
noncanonical base pair with an unprotonated C (i.e., a CDC+
*]!]4|;p7Q%x-m%H/Wbase pair), and these base pairs interdigitate to form a3{7s0q.o J.K.}1H2c
quadruple helix that is stable under slightly acidic conditions.[中国植物提取物论坛'f5x!a$F&j!f-s6z3x
3–7] A pH titration of the formation of the i-motif foldedwww.plantextra.com7M1K,x3R"y2~*x
structure shows a sharp transition around pH 6.5;[4, 5] thus, the中国植物提取物论坛.{0[:G-I1w5I-i3T3_-A
design of a DNA nanomachine driven by pH changes is植提之家,植提空间,中国植提论坛,植提论坛,植提网*[;k,E0`4M9d/l;r6q:N5E
enabled.
-@"s9@$Z%_"x!x中国植物提取物论坛As illustrated in Figure 1, our system comprises a 21mer3i0A+k"W:J$_:p
single-stranded oligonucleotide X containing four stretches of
0t9O5_!Y3U-zwww.plantextra.comCCC. The second component is a 17 mer DNA strand Y,
F'M.U*F"V)@%l#qwhose sequence is complementary to X with the exception of
#n2S,\-q0D'Dtwo bases. The two mismatches are necessary to stop strand Ywww.plantextra.com,o"y-r#W4T1].a6{#K
folding into a G-quadruplex, a four-stranded structure that中国植物提取物论坛8b*r3y0H2H.A"f
results from stacked tetrads of hydrogen-bonded guanine
+J2T7I5a+|&\"\residues,[8] and to moderate the melting point of the double中国植提论坛|植提网0r:t)o+c0e1c/L
helix formed (see Supporting Information). At acidic pH中国植物提取物论坛%|$w e.p"z9`0j
(pH 5.0) strand X folds into the closed i-motif structure.[3, 4,7]3[-j(O$Z)P7v(p(f8^
In this closed state, complementary strand Y adopts a floppy
,\&H6T1i![/b'F#^random-coil conformation. When the pH value is raised to
!V&]6[.o5a4~8i6s中国植物提取物论坛8.0, strand X unfolds and is captured by hybridization to Ywww.plantextra.com&e8I:c1|0t @+H:O6`%y
with formation of an extended duplex structure (the open
.H9l/V#x5I(h9_;q1tstate). Interconversion of the closed and open states of the
%\9H"Y3m1y#x植提之家,植提空间,中国植提论坛,植提论坛,植提网machine is thus mediated by alternating addition of H+ and
;Y9|8h4r8L0t1O5y2u;U植提之家,植提空间,中国植提论坛,植提论坛,植提网OH
.中国植提论坛|植提网%G/c&a x-A6v f
To visualize the open and closed states of this machine, a
8}5q5|&F7M#q%a)L(g4Uwww.plantextra.comdoubly labeled version of X (i.e., X*) was synthesized with a5X"{2a+Z'X'z
rhodamine green fluorophore at the 5’ end and a dabcyl植提之家,植提空间,中国植提论坛,植提论坛,植提网6u h(R2d2v/l.`3d7L
quencher at the 3’ end. When the 5’ and 3’ ends of strand X

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(w;{"\0l'A中国植物提取物论坛哪位朋友有能力帮忙,每篇文章加积分10
0s/R5\%J1j"D5a2C7},Rwww.plantextra.com版主怎么不给我加分啊