Name: using polystyrene-block-poly(acrylic acid)-coated metal nanoparticles as monomers for their homo- and co-polymerization
Uploaded: 2015-07-09T15:00:00
Description: Watch this Scientific Journal Video about Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization at JoVE.com

The authors thank the NRF (CRP-4-2008-06), A*Star (SERC 112-120-2011) and MOE (RG14/13) Singapore for financial supports.

注意：请咨询相关的所有材料安全数据表（MSDS）。在这些合成中使用的一些化学物质腐蚀，有毒和致癌可能。相比，其大宗同行纳米材料可能有无法识别的危害。表演时的反应，包括使用通风橱和个人防护装备（护目镜，手套，实验室外套，全长长裤，闭趾鞋等 ），请使用适当的安全做法。 1.合成金属纳米粒子的注意：在合成中使用的所有玻璃器皿都用王水</e...

<ol>
	<li>Anker, J. N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Biosensing+with+plasmonic+nanosensors.">Biosensing with plasmonic nanosensors.</a> Nat Mater. 7, 442-453 (2008).</li><li>Maier, S. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Plasmonics&#8212;A+Route+to+Nanoscale+Optical+Devices.">Plasmonics&#8212;A Route to Nanoscale Optical Devices.</a> Adv. Mater. 13, 1501-1505 (2001).</li><li>Zhu, Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Manipulation+of+Collective+Optical+Activity+in+One-Dimensional+Plasmonic+Assembly.">Manipulation of Collective Optical Activity in One-Dimensional Plasmonic Assembly.</a> ACS Nano. 6, 2326-2332 (2012).</li><li>Maier, S. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Local+detection+of+electromagnetic+energy+transport+below+the+diffraction+limit+in+metal+nanoparticle+plasmon+waveguides.">Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides.</a> Nat. Mater. 2, 229-232 (2003).</li><li>Gong, J., Li, G., Tang, Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Self-assembly+of+noble+metal+nanocrystals:+Fabrication,+optical+property,+and+application.">Self-assembly of noble metal nanocrystals: Fabrication, optical property, and application.</a> Nano Today. 7, 564-585 (2012).</li><li>Wei, Q. H., Su, K. H., Durant, S., Zhang, X. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Plasmon Resonance of Finite One-Dimensional Au Nanoparticle Chains. Nano Lett. 4, 1067-1071 (2004).</li><li>Warner, M. G., Hutchison, J. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Linear+assemblies+of+nanoparticles+electrostatically+organized+on+DNA+scaffolds.">Linear assemblies of nanoparticles electrostatically organized on DNA scaffolds.</a> Nat Mater. 2, 272-277 (2003).</li><li>DeVries, G. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Divalent+Metal+Nanoparticles.">Divalent Metal Nanoparticles.</a> Science. 315, 358-361 (2007).</li><li>Kim, B. Y., Shim, I. -. B., Monti, O. L. A., Pyun, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Magnetic+self-assembly+of+gold+nanoparticle+chains+using+dipolar+core-shell+colloids.">Magnetic self-assembly of gold nanoparticle chains using dipolar core-shell colloids.</a> Chem. Commun. 47, 890-892 (2011).</li><li>Wang, L. B., Xu, L. G., Kuang, H., Xu, C. L., Kotov, N. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dynamic+Nanoparticle+Assemblies.">Dynamic Nanoparticle Assemblies.</a> Acc. Chem. Res. 45, 1916-1926 (2012).</li><li>Tang, Z., Kotov, N. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=One-Dimensional+Assemblies+of+Nanoparticles:+Preparation,+Properties,+and+Promise.">One-Dimensional Assemblies of Nanoparticles: Preparation, Properties, and Promise.</a> Adv. Mater. 17, 951-962 (2005).</li><li>Keng, P. Y., Shim, I., Korth, B. D., Douglas, J. F., Pyun, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Synthesis+and+Self-Assembly+of+Polymer-Coated+Ferromagnetic+Nanoparticles.">Synthesis and Self-Assembly of Polymer-Coated Ferromagnetic Nanoparticles.</a> ACS Nano. 1, 279-292 (2007).</li><li>Shim, M., Guyot-Sionnest, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Permanent+dipole+moment+and+charges+in+colloidal+semiconductor+quantum+dots.">Permanent dipole moment and charges in colloidal semiconductor quantum dots.</a> J. Chem. Phys. 111, 6955-6964 (1999).</li><li>Nakata, K., Hu, Y., Uzun, O., Bakr, O., Stellacci, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chains+of+Superparamagnetic+Nanoparticles.">Chains of Superparamagnetic Nanoparticles.</a> Adv. Mater. 20, 4294-4299 (2008).</li><li>Tang, Z., Kotov, N. A., Giersig, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Spontaneous+Organization+of+Single+CdTe+Nanoparticles+into+Luminescent+Nanowires.">Spontaneous Organization of Single CdTe Nanoparticles into Luminescent Nanowires.</a> Science. 297, 237-240 (2002).</li><li>Zhang, H., Wang, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Controlling+the+Growth+of+Charged-Nanoparticle+Chains+through+Interparticle+Electrostatic+Repulsion.">Controlling the Growth of Charged-Nanoparticle Chains through Interparticle Electrostatic Repulsion.</a> Angew. Chem. Int. Ed. 47, 3984-3987 (2008).</li><li>Yang, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanistic+investigation+into+the+spontaneous+linear+assembly+of+gold+nanospheres.">Mechanistic investigation into the spontaneous linear assembly of gold nanospheres.</a> Phys. Chem. Chem. Phys. 12, 11850-11860 (2010).</li><li>Keng, P. Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Colloidal+Polymerization+of+Polymer-Coated+Ferromagnetic+Nanoparticles+into+Cobalt+Oxide+Nanowires.">Colloidal Polymerization of Polymer-Coated Ferromagnetic Nanoparticles into Cobalt Oxide Nanowires.</a> ACS Nano. 3, 3143-3157 (2009).</li><li>Xia, H., Su, G., Wang, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Size-Dependent+Electrostatic+Chain+Growth+of+pH-Sensitive+Hairy+Nanoparticles.">Size-Dependent Electrostatic Chain Growth of pH-Sensitive Hairy Nanoparticles.</a> Angew. Chem. Int. Ed. 52, 3726-3730 (2013).</li><li>Wang, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Unconventional+Chain-Growth+Mode+in+the+Assembly+of+Colloidal+Gold+Nanoparticles.">Unconventional Chain-Growth Mode in the Assembly of Colloidal Gold Nanoparticles.</a> Angew. Chem. Int. Ed. 51, 8021-8025 (2012).</li><li>Wang, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Homo-+and+Co-polymerization+of+Polysytrene-block-Poly(acrylic+acid)-Coated+Metal+Nanoparticles.">Homo- and Co-polymerization of Polysytrene-block-Poly(acrylic acid)-Coated Metal Nanoparticles.</a> ACS Nano. 8, 8063-8073 (2014).</li><li>Fred, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Controlled+Nucleation+for+Regulation+of+Particle-size+in+Monodisperse+Gold+Suspensions.">Controlled Nucleation for Regulation of Particle-size in Monodisperse Gold Suspensions.</a> Nature-Phys. Sci. 241, 20-22 (1973).</li><li>Gole, A., Murphy, C. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Azide-Derivatized+Gold+Nanorods:+Functional+Materials+for+&#8220;Click&#8221;+Chemistry.">Azide-Derivatized Gold Nanorods: Functional Materials for &#8220;Click&#8221; Chemistry.</a> Langmuir. 24, 266-272 (2007).</li><li>Lin, Z. -. H., Yang, Z., Chang, H. -. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Preparation+of+Fluorescent+Tellurium+Nanowires+at+Room+Temperature.">Preparation of Fluorescent Tellurium Nanowires at Room Temperature.</a> Cryst. Growth Des. 8, 351-357 (2007).</li><li>Xia, Y. N., Xiong, Y. J., Lim, B., Skrabalak, S. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Shape-Controlled+Synthesis+of+Metal+Nanocrystals.">Shape-Controlled Synthesis of Metal Nanocrystals.</a> Simple Chemistry Meets Complex Physics? Angew. Chem. Int. Ed. 48, 60-103 (2009).</li><li>Chen, H. Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Encapsulation+of+Single+Small+Gold+Nanoparticles+by+Diblock+Copolymers.">Encapsulation of Single Small Gold Nanoparticles by Diblock Copolymers.</a> ChemPhysChem. 9, 388-392 (2008).</li><li>Kang, Y., Taton, T. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Controlling+Shell+Thickness+in+Core&#8722;Shell+Gold+Nanoparticles+via+Surface-Templated+Adsorption+of+Block+Copolymer+Surfactants.">Controlling Shell Thickness in Core&#8722;Shell Gold Nanoparticles via Surface-Templated Adsorption of Block Copolymer Surfactants.</a> Macromolecules. 38, 6115-6121 (2005).</li><li>Kang, Y., Taton, T. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Core/Shell+Gold+Nanoparticles+by+Self-Assembly+and+Crosslinking+of+Micellar.+Block-Copolymer+Shells.">Core/Shell Gold Nanoparticles by Self-Assembly and Crosslinking of Micellar. Block-Copolymer Shells.</a> Angew. Chem. Int. Ed. 44, 409-412 (2005).</li><li>Chen, Y., Cui, H., Li, L., Tian, Z., Tang, Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Controlling+micro-phase+separation+in+semi-crystalline/amorphous+conjugated+block+copolymers.">Controlling micro-phase separation in semi-crystalline/amorphous conjugated block copolymers.</a> Polymer Chemistry. 5, 4441-4445 (2014).</li><li>Bates, F. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Polymer-Polymer+Phase+Behavior.">Polymer-Polymer Phase Behavior.</a> Science. 251, 898-905 (1991).</li><li>Zhang, L. F., Shen, H. W., Eisenberg, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Phase+separation+behavior+and+crew-cut+micelle+formation+of+polystyrene-b-poly(acrylic+acid)+copolymers+in+solutions.">Phase separation behavior and crew-cut micelle formation of polystyrene-b-poly(acrylic acid) copolymers in solutions.</a> Macromolecules. 30, 1001-1011 (1997).</li><li>Yu, Y., Zhang, L., Eisenberg, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Morphogenic+Effect+of+Solvent+on+Crew-Cut+Aggregates+of+Apmphiphilic+Diblock+Copolymers.">Morphogenic Effect of Solvent on Crew-Cut Aggregates of Apmphiphilic Diblock Copolymers.</a> Macromolecules. 31, 1144-1154 (1998).</li><li>Liu, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Toroidal+Micelles+of+Polystyrene-block-Poly(acrylic+acid).">Toroidal Micelles of Polystyrene-block-Poly(acrylic acid).</a> Small. 7, 2721-2726 (2011).</li></ol>

该合成的机理细节报告，并在以前的出版物讨论。20,21下面我们重点的综合条件的理由。对于纳米颗粒的聚合，优选的是纳米颗粒大小均匀的被使用。我们遵循文献程序来获得均匀的金纳米粒子，23的Au纳米棒，24和Te纳米线25在一般情况下，更好的尺寸均匀性时，成核和生长阶段的分离而获得。26最初爆发均相成核后，所有的核增长以相同的速率为同一期间?...

Despite great advances in the synthesis of nanoparticles over the past two decades, their orderly assembly remains a great challenge. Our synthetic capabilities in putting the basic building blocks together are of critical importance for the exploration and exploitation of their synergistic effects and collective properties. Thus, developing new reaction pathways and exploring the underlying mechanisms are the stepping stones towards the rational synthesis of complex nanodevices. 
Among the rich structural variety of possible nanoparticle assemblies, one-dimensional (1D) chains have shown useful applications in nanoelectronics, optoelectronics, and biosensors.1-4 Typically, self-assembly of nanoparticles into chain-like structures requires magnetic or electric dipole interactions, anisotropic electrostatic repulsion, or external templates.5-11 For dipole-induced assembly, one needs nanoparticles with permanent dipoles, such as magnetic nanoparticles and semiconductor nanoparticles under special environments.12-15 For nanoparticles with no permanent dipole, it has been shown that the relatively weaker electrostatic repulsion at the ends of the nanoparticle chains can promote the selective attachment of nanoparticle thereon and thus, 1D chain growth.16,17 Because the nanoparticles can aggregate with each other and with the oligomers, the aggregation often follows the intrinsic step-growth mode, leading to short chain length and the lack of control over branching. Lastly, nanoparticles can be adsorbed onto 1D templates to form chains, but usually it is very difficult to achieve secure anchoring and avoid gaps among the nanoparticles. 
With these existing methods, hetero-assembly or &#8220;co-polymerization&#8221; of nanoparticles is particularly difficult. A few pioneer works have demonstrated the &#8220;co-polymerization&#8221; of short nanoparticle chains exploiting magnetic dipole18 or electrostatic repulsion.19
Recently, we reported the homo- and co-polymerization of PSPAA-coated nanoparticles into chains.20,21 This new synthetic pathway involves facile colloidal synthesis and generic use of different types of nanoparticles. It affords ultralong chains without branching and allows ready control of their length and width (single-, double-, and triple-line chains). Most importantly, random- and co-polymers of nanoparticles can be synthesized with improved structural control. In this work, we provide video protocols for the related syntheses, intending to give a detailed demonstration and presentation.

<table border="0" cellpadding="0" cellspacing="0">
	<tbody>
		<tr>
			<td>Gold(III) chloride trihydrate, ACS reagent, &#8805;49.0% Au basis 
			&#160;</td>
			<td>Sigma-Aldrich</td>
			<td>G4022</td>
			<td>HAuCl4</td>
		</tr>
		<tr>
			<td>Sodium citrate dihydrate, 99%</td>
			<td>Alfa Aesar</td>
			<td>A12274</td>
			<td></td>
		</tr>
		<tr>
			<td>Sodium borohydride, &#8805;99% 
			&#160;</td>
			<td>Sigma-Aldrich</td>
			<td>71321, Fluka</td>
			<td></td>
		</tr>
		<tr>
			<td>Hexadecyltrimethylammonium bromide,&#8805;98%&#160;</td>
			<td>Sigma-Aldrich</td>
			<td>H5882</td>
			<td>CTAB</td>
		</tr>
		<tr>
			<td>Silver Nitrate, 99.9999% trace metals basis</td>
			<td>Sigma-Aldrich</td>
			<td>204390</td>
			<td></td>
		</tr>
		<tr>
			<td>L-ascorbic acid,BioXtra, &#8805;99.0%, crystalline 
			&#160;</td>
			<td>Sigma-Aldrich</td>
			<td>A5960</td>
			<td></td>
		</tr>
		<tr>
			<td>Tellurium dioxide,&#8805;99%&#160;</td>
			<td>Sigma-Aldrich</td>
			<td>243450</td>
			<td></td>
		</tr>
		<tr>
			<td>Hydrazine monohydrate, 64-65 %, reagent grade, 98%&#160;</td>
			<td>Sigma-Aldrich</td>
			<td>207942</td>
			<td></td>
		</tr>
		<tr>
			<td>Poly(styrene-b-acrylic acid)(PS154-PAA49)</td>
			<td>Polymer Source</td>
			<td>P4673A-SAA</td>
			<td>PS16000-PAA3500</td>
		</tr>
		<tr>
			<td>Poly(styrene-b-acrylic acid)(PS144-PAA28)</td>
			<td>Polymer Source</td>
			<td>P4002-SAA</td>
			<td>PS15000-PAA1600</td>
		</tr>
		<tr>
			<td>2-Naphthalenethiol, 
			&#160;&#8805;99.0% (GC)&#160;</td>
			<td>Sigma-Aldrich</td>
			<td>88910, Fluka</td>
			<td></td>
		</tr>
		<tr>
			<td>Sodium dodecyl sulfate, 99%</td>
			<td>Alfa Aesar</td>
			<td>A11183</td>
			<td></td>
		</tr>
		<tr>
			<td>single wall carbon nanotubes, 99%&#160; ultra-pure</td>
			<td>NanoIntegris</td>
			<td>PC10344a</td>
			<td></td>
		</tr>
		<tr>
			<td>Sodium hydroxide</td>
			<td>Sinopharm</td>
			<td>S1900136</td>
			<td></td>
		</tr>
		<tr>
			<td>1,2-dipalmitoyl-sn-glycero-3-phosphothioethanol (sodium salt)&#160;</td>
			<td>Avanti polar lipids</td>
			<td>870160P</td>
			<td>PSH</td>
		</tr>
		<tr>
			<td>N,N-dimethylformamide</td>
			<td>Merck</td>
			<td>SA4s640012</td>
			<td></td>
		</tr>
		<tr>
			<td>Ethanol, absolute</td>
			<td>Fischer</td>
			<td>E/0650DF/17</td>
			<td></td>
		</tr>
		<tr>
			<td>Hydrochloric acid, 37%</td>
			<td>Honey well</td>
			<td>10189005</td>
			<td>Dilute to 1M before use&#160;</td>
		</tr>
	</tbody>
</table>

using polystyrene-block-poly(acrylic acid)-coated metal nanoparticles as monomers for their homo- and co-polymerization

We present a template-free method for &#8220;polymerizing&#8221; nanoparticles into long chains without side branches. A variety of nanoparticles are encapsulated in polystyrene-block-poly(acrylic acid) (PSPAA) shells and then used as monomers for their self-assembly. Spherical PSPAA micelles upon acid treatment are known to assemble into cylindrical micelles. Exploiting this tendency, the core-shell nanoparticles are induced to aggregate, coalesce, and then transform into long chains. When more than one type of nanoparticles are used, random and block &#8220;copolymers&#8221; of nanoparticles can be obtained. Detailed procedures are reported for the PSPAA encapsulation of nanoparticles, homo- and co-polymerization of the core-shell nanoparticles, separation and purification of the resulting nanoparticle chains. Transformations of single-line chains into double- and triple-line chains are also presented. The synergy between the polymer shell and the embedded nanoparticles leads to an unusual chain-growth polymerization mode, giving long nanoparticle chains that are distinct from the products of the traditional step-growth aggregation process.

所述纳米颗粒的单体和链的特征在于通过TEM， 图1示出了PSPAA包封单体的代表性TEM图像，确认了形态和大小（ 图1）。因为一些单体典型地保留在“聚合”后的样品中，样品通常提纯和浓缩被用于TEM表征之前。污渍通过混合有1％钼酸铵样品溶液，以使聚合物壳中的TEM图像清楚对比制备TEM样品的过程中进行了介绍。的“均聚物”和“共聚物”代表TEM图像示于图2?...

Watch this Scientific Journal Video about Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization at JoVE.com

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

We report protocols for &#8220;polymerizing&#8221; various types of polymer-encapsulated metal nanoparticles into long chains of &#8220;homo-&#8220; and &#8220;co-polymers&#8221;.

使用聚苯乙烯<em&gt;块</em&gt; - 聚（丙烯酸）涂层的金属纳米颗粒作为单体他们均聚物和共聚物聚合

We present a template-free method for &#8220;polymerizing&#8221; nanoparticles into long chains without side branches. A variety of nanoparticles are ...

Research

JoVE Journal

Chemistry

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR

Copper (I) binding by metallochaperone transport proteins prevents copper oxidation and release of the toxic ions that may participate in harmful redox ...

科研

化学

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

酰胺偶联反应为双吡啶基配体及其络合合成，以白金为双核抗癌药物

Amide coupling reactions can be used to synthesize bispyridine-based ligands for use as bridging linkers in multinuclear platinum anticancer drugs. ...

Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles

单金属和双金属前过渡金属碳化物和氮化物纳米粒子的反相微乳液介导的合成

A reverse microemulsion is used to encapsulate monometallic or bimetallic early transition metal oxide nanoparticles in microporous silica shells. The ...

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol

Generation of Zerovalent Metal Core Nanoparticles Using n-2-aminoethyl-3-aminosilanetriol

使用N-零价金属芯纳米粒子的生成（2-氨基乙基）-3- aminosilanetriol

In this work, a facile one-pot reaction for the formation of metal nanoparticles in a water solution through the use of ...

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

使用苝作为可见光光催化功能化的乙烯基单体原子转移自由基聚合

A standardized technique for atom transfer radical polymerization of vinyl monomers using perylene as a visible-light photocatalyst is presented. The ...

Au-Interaction of Slp1 Polymers and Monolayer from Lysinibacillus sphaericus JG-B53 - QCM-D, ICP-MS and AFM as Tools for Biomolecule-metal Studies

Au-Interaction of Slp1 Polymers and Monolayer from Lysinibacillus sphaericus JG-B53 - QCM-D, ICP-MS and AFM as Tools for Biomolecule-metal Studies

SLP1聚合物和单层从金交互<em&gt; Lysinibacillus球形</em&gt; JG-B53 - QCM-D，ICP-MS和原子力显微镜的工具生物分子金属研究

In this publication the gold sorption behavior of surface layer (S-layer) proteins (Slp1) of Lysinibacillus sphaericus JG-B53 is described. These ...

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis

原位金属氧化物纳米粒子的核探针检测与单细胞定量研究

Micro-analytical techniques based on chemical element imaging enable the localization and quantification of chemical composition at the cellular level. ...

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

配体介导成核与钯金属纳米粒子的生长

The size, size distribution and stability of colloidal nanoparticles are greatly affected by the presence of capping ligands. Despite the key contribution ...

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

复合金属氧化物纳米粒子的熔融盐合成

The development of feasible synthesis methods is critical for the successful exploration of novel properties and potential applications of nanomaterials. ...

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

原位FTIR 光谱作为气体/固体相互作用研究工具：UiO-66 金属-有机框架中的水增强 CO2吸附

In situ infrared spectroscopy is an inexpensive, highly sensitive, and selective valuable tool to investigate the interaction of polycrystalline solids ...