1
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Park J, Kim S, Lee SS, Kim J, Park J, Lee JH, Jung JH. Stretchable calix[4]
arene‐based
gels by induction of water. J Appl Polym Sci 2021. [DOI: 10.1002/app.51235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jaehyeon Park
- Department of Chemistry and Researc Institute of Natural Sciences Gyeongsang National University, 501 jinjudaero Jinju Republic of Korea
| | - Sukyoung Kim
- Department of Chemistry and Researc Institute of Natural Sciences Gyeongsang National University, 501 jinjudaero Jinju Republic of Korea
| | - Shim Sung Lee
- Department of Chemistry and Researc Institute of Natural Sciences Gyeongsang National University, 501 jinjudaero Jinju Republic of Korea
| | - Jong‐Hyun Kim
- Department of Materials Engineering and Convergence Technology Gyeongsang National University, 501 jinjudaero Jinju Republic of Korea
| | - Joung‐Man Park
- Department of Materials Engineering and Convergence Technology Gyeongsang National University, 501 jinjudaero Jinju Republic of Korea
| | - Ji Ha Lee
- Chemical Engineering Program Graduate School of Advanced Science and Engineering, Hiroshima University, 1‐4‐1 Kagamiyama Hiroshima Japan
| | - Jong Hwa Jung
- Department of Chemistry and Researc Institute of Natural Sciences Gyeongsang National University, 501 jinjudaero Jinju Republic of Korea
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2
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Lu X, Zhan Y, Ouyang Q, Bai S, Chen H, Yu Y, Zheng Y, Sun Y, Li H. Fabrication of a Tyrosine-Responsive Liquid Quantum Dots Based Biosensor through Host–Guest Chemistry. Anal Chem 2019; 91:13285-13289. [DOI: 10.1021/acs.analchem.9b04034] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Xiaoju Lu
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China
| | - Yibei Zhan
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China
| | - Qingying Ouyang
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Suya Bai
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Huan Chen
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yongliang Yu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Yifu Zheng
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yao Sun
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Haibing Li
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
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3
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Abstract
Calixarenes are cyclic oligomers obtained by condensation of suitable p-functionalised phenols with formaldehyde, usually allowing for the synthesis of the well known small calixarenes (including up to eight phenolic subunits). We report here the discovery of much larger members of this family, exhibiting sizes up to 90 phenolic subunits: the giant calixarenes. These macrocycles are obtained according to simple, easily scalable processes, in yields up to 65%. We show that the formation of these giant macrocycles is favored by an oxygen-containing-group at the para-position of the starting phenol, high concentrations of heavy alkaline bases (rubidium or cesium hydroxides) and long reaction times. A mechanism is proposed to rationalize these observations. These giant macrocycles can also be obtained in the quasi-solid state, opening interesting perspectives in the field of calixarenes chemistry. Along with their intrinsic fundamental interest, these objects are also opening interesting applicative potentialities.
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4
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Arora LS, Chawla HM, Shahid M, Pant N. Synthesis of Distally Substituted Calix[4]arene Dialkyl Ethers in High Yield. ORG PREP PROCED INT 2017. [DOI: 10.1080/00304948.2017.1320903] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Lakhbeer Singh Arora
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Har Mohindra Chawla
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Mohammad Shahid
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Nalin Pant
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
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5
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González-Henríquez CM, Terraza CA, Cabrera AL, Rojas SD, Sarabia-Vallejos MA. A simple method to generate spontaneous chemisorption of metallic particles mediated by carboxylate groups from silylated oligomeric poly(amide-imide)s. POLYM INT 2017. [DOI: 10.1002/pi.5324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Carmen M González-Henríquez
- Departamento de Química; Universidad Tecnológica Metropolitana, Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente; Santiago Chile
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación; Universidad Tecnológica Metropolitana, Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente; Santiago Chile
| | - Claudio A Terraza
- Facultad de Química; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Alejandro L Cabrera
- Facultad de Física; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Susana D Rojas
- Facultad de Física; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Mauricio A Sarabia-Vallejos
- Escuela de Ingeniería, Departamento de Ingeniería Estructural y Geotécnica; Pontificia Universidad Católica de Chile; Santiago Chile
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6
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Guan ZJ, Zeng JL, Nan ZA, Wan XK, Lin YM, Wang QM. Thiacalix[4]arene: New protection for metal nanoclusters. SCIENCE ADVANCES 2016; 2:e1600323. [PMID: 27536724 PMCID: PMC4982710 DOI: 10.1126/sciadv.1600323] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 07/12/2016] [Indexed: 05/31/2023]
Abstract
Surface organic ligands are critical for the formation and properties of atomically precise metal nanoclusters. In contrast to the conventionally used protective ligands such as thiolates and phosphines, thiacalix[4]arene has been used in the synthesis of a silver nanocluster, [Ag35(H2L)2(L)(C≡CBu(t))16](SbF6)3, (H4L, p-tert-butylthiacalix[4]-arene). This is the first structurally determined calixarene-protected metal nanocluster. The chelating and macrocyclic effects make the thiacalix[4]arene a rigid shell that protects the silver core. Upon addition or removal of one silver atom, the Ag35 cluster can be transformed to Ag36 or Ag34 species, and the optical properties are changed accordingly. The successful use of thiacalixarene in the synthesis of well-defined silver nanoclusters suggests a bright future for metal nanoclusters protected by macrocyclic ligands.
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Affiliation(s)
- Zong-Jie Guan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jiu-Lian Zeng
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Zi-Ang Nan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Xian-Kai Wan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Yu-Mei Lin
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Quan-Ming Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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7
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Zhang F, Sun Y, Tian D, Shin WS, Kim JS, Li H. Selective molecular recognition on calixarene-functionalized 3D surfaces. Chem Commun (Camb) 2016; 52:12685-12693. [DOI: 10.1039/c6cc05876k] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Calixarene based various 3D surface materials with unique signal amplification in molecular recognition are presented, including quantum dots (QDs), metal nanoparticles (NPs), nanotubes, and mesoporous silica.
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Affiliation(s)
- Fan Zhang
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Yue Sun
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Demei Tian
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Weon Sup Shin
- Department of Chemistry
- Korea University
- Seoul 136-701
- Korea
| | - Jong Seung Kim
- Department of Chemistry
- Korea University
- Seoul 136-701
- Korea
| | - Haibing Li
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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8
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Troian-Gautier L, Valkenier H, Mattiuzzi A, Jabin I, den Brande NV, Mele BV, Hubert J, Reniers F, Bruylants G, Lagrost C, Leroux Y. Extremely robust and post-functionalizable gold nanoparticles coated with calix[4]arenes via metal–carbon bonds. Chem Commun (Camb) 2016; 52:10493-6. [DOI: 10.1039/c6cc04534k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Gold nanoparticles stabilized with a thin layer of post-functionalizable calix[4]arenes were prepared through the reductive grafting of a calix[4]arene-tetra-diazonium salt.
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9
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Vita F, Boccia A, Marrani AG, Zanoni R, Rossi F, Arduini A, Secchi A. Calix[4]arene-Functionalised Silver Nanoparticles as Hosts for Pyridinium-Loaded Gold Nanoparticles as Guests. Chemistry 2015; 21:15428-38. [PMID: 26471448 DOI: 10.1002/chem.201501920] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/06/2015] [Indexed: 12/26/2022]
Abstract
A series of lipophilic gold nanoparticles (AuNPs) circa 5 nm in diameter and having a mixed organic layer consisting of 1-dodecanethiol and 1-(11-mercaptoundecyl) pyridinium bromide was synthesised by reacting tetraoctylammonium bromide stabilised AuNPs in toluene with different mixtures of the two thiolate ligands. A bidentate ω-alkylthiolate calix[4]arene derivative was instead used as a functional protecting layer on AgNPs of approximately 3 nm. The functionalised nanoparticles were characterised by transmission electron microscopy (TEM), and by UV/Vis and X-ray photoelectron spectroscopy (XPS). Recognition of the pyridinium moieties loaded on the AuNPs by the calix[4]arene units immobilised on the AgNPs was demonstrated in solution of weakly polar solvents by UV/Vis titrations and DLS measurements. The extent of Au-AgNPs aggregation, shown through the low-energy shift of their surface plasmon bands (SPB), was strongly dependent on the loading of the pyridinium moieties present in the organic layer of the AuNPs. Extensive aggregation between dodecanethiol-capped AuNPs and the Ag calix[4]arene-functionalised NPs was also promoted by the action of a simple N-octyl pyridinium difunctional supramolecular linker. This linker can interdigitate through its long fatty tail in the organic layer of the dodecanethiol-capped AuNPs, and simultaneously interact through its pyridinium moiety with the calix[4]arene units at the surface of the modified AgNPs.
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Affiliation(s)
- Francesco Vita
- Dipartimento di Chimica, Università degli Studi di Parma, Parco Area delle Scienze 17A, 43124 Parma (Italy), Fax: (+39) 0521-905472.,Istituto dei Materiali per l'Elettronica ed il Magnetismo (IMEM-CNR), Parco Area delle Scienze 37A, 43124 Parma (Italy)
| | - Alice Boccia
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185 Roma (Italy)
| | - Andrea G Marrani
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185 Roma (Italy)
| | - Robertino Zanoni
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185 Roma (Italy).
| | - Francesca Rossi
- Istituto dei Materiali per l'Elettronica ed il Magnetismo (IMEM-CNR), Parco Area delle Scienze 37A, 43124 Parma (Italy)
| | - Arturo Arduini
- Dipartimento di Chimica, Università degli Studi di Parma, Parco Area delle Scienze 17A, 43124 Parma (Italy), Fax: (+39) 0521-905472
| | - Andrea Secchi
- Dipartimento di Chimica, Università degli Studi di Parma, Parco Area delle Scienze 17A, 43124 Parma (Italy), Fax: (+39) 0521-905472.
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10
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Tonga GY, Mizuhara T, Saha K, Jiang Z, Hou S, Das R, Rotello VM. Binding Studies of Cucurbit[7]uril with Gold Nanoparticles Bearing Different Surface Functionalities. Tetrahedron Lett 2015; 56:3653-3657. [PMID: 26074630 PMCID: PMC4461275 DOI: 10.1016/j.tetlet.2015.04.125] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Host-guest interactions between a synthetic receptor, cucurbit[7]uril (CB[7]), and gold nanoparticles (AuNPs) have been quantified using isothermal titration calorimetry. AuNPs were functionalized with ligands containing tertiary or quaternary benzylamine derivatives, with electron donating or withdrawing groups at the para position of the benzene ring. Analysis of binding interactions reveals that functional groups at the para position have no significant effect on binding constant. However, headgroups bearing a permanent positive charge increased the binding of AuNPs to CB[7] ten-fold compared to monomethyl counterparts.
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Affiliation(s)
- Gulen Yesilbag Tonga
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Tsukasa Mizuhara
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Krishnendu Saha
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Ziwen Jiang
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Singyuk Hou
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Riddha Das
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
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11
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Rambabu D, Pradeep CP, Pooja P, Dhir A. Self-assembled material of palladium nanoparticles and a thiacalix[4]arene Cd(ii) complex as an efficient catalyst for nitro-phenol reduction. NEW J CHEM 2015. [DOI: 10.1039/c5nj01304f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cadmium complex based on the thiacalix[4]arene scaffold is utilized to synthesize a material with palladium nanoparticles, which behaves as an efficient catalyst for the conversion of 4-nitrophenol to 4-aminophenol.
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Affiliation(s)
- Darsi Rambabu
- School of Basic Sciences
- Indian Institute of Technology
- Mandi-175001
- India
| | | | - Pooja Pooja
- School of Basic Sciences
- Indian Institute of Technology
- Mandi-175001
- India
| | - Abhimanew Dhir
- School of Basic Sciences
- Indian Institute of Technology
- Mandi-175001
- India
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12
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Pang TT, Du LM, Liu HL, Fu YL. Supramolecular p-sulfonated calix[4,6,8]arene for tryptophan detection. CAN J CHEM 2014. [DOI: 10.1139/cjc-2014-0150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Numerous techniques have focused on the ability of p-sulfonated calix[n]arene to form complexes with tryptophan. Scanning electron microscopy and Fourier transform infrared spectroscopy were utilized to study the organization and molecular structure of different layers of the electrode surface. Scanning electron microscopy results showed that SC4A displayed a cubic structure whereas SC6A and SC8A displayed dendrite structures. The electrochemical properties and potential complex formation between SCnA and tryptophan were characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Cyclic voltammetry experiments showed that the gold electrode was successfully functionalized by self-assembled cysteamine and SC4A. Electrochemical impedance spectroscopy results showed the observation of the tryptophan–SCnA interaction and indicated that SC4A had the highest sensitivity to tryptophan and allowed 2.04 μg L−1 tryptophan to be detected. Electrochemical impedance spectroscopy analysis and molecular modeling calculation confirmed that SC4A has higher tryptophan sensitivity than SC6A and SC8A.
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Affiliation(s)
- Tao-Tao Pang
- Analytical and Testing Center, Shanxi Normal University, Linfen 041004, P.R. China
| | - Li-Ming Du
- Analytical and Testing Center, Shanxi Normal University, Linfen 041004, P.R. China
| | - Hai-Long Liu
- Analytical and Testing Center, Shanxi Normal University, Linfen 041004, P.R. China
| | - Yun-Long Fu
- Analytical and Testing Center, Shanxi Normal University, Linfen 041004, P.R. China
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13
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Colorimetric detection of mercury(II) in aqueous media with high selectivity using calixarene functionalized gold nanoparticles. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.04.047] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Avvakumova S, Fezzardi P, Pandolfi L, Colombo M, Sansone F, Casnati A, Prosperi D. Gold nanoparticles decorated by clustered multivalent cone-glycocalixarenes actively improve the targeting efficiency toward cancer cells. Chem Commun (Camb) 2014; 50:11029-32. [DOI: 10.1039/c4cc03159h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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15
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Colorimetric detection of Cu2+ and Pb2+ ions using calix[4]arene functionalized gold nanoparticles. J CHEM SCI 2014. [DOI: 10.1007/s12039-014-0600-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Liu HX, He X, Zhao L. Metallamacrocycle-modified gold nanoparticles: a new pathway for surface functionalization. Chem Commun (Camb) 2014; 50:971-4. [DOI: 10.1039/c3cc47722c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Liu H, Wang K, Zhang L, Qian X, Li Y, Li Y. Selectively recognizing organic semiconducting molecules on solid state molecular cages based on ZnOTCPP. Dalton Trans 2014; 43:432-8. [DOI: 10.1039/c3dt51609a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Mondal B, Kamatham N, Samanta SR, Jagadesan P, He J, Ramamurthy V. Synthesis, characterization, guest inclusion, and photophysical studies of gold nanoparticles stabilized with carboxylic acid groups of organic cavitands. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:12703-12709. [PMID: 24059841 DOI: 10.1021/la403310e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Water-soluble gold nanoparticles (AuNP) stabilized with cavitands having carboxylic acid groups have been synthesized and characterized by a variety of techniques. Apparently, the COOH groups similar to thiol are able to prevent aggregation of AuNP. These AuNP were stable either as solids or in aqueous solution. Most importantly, these cavitand functionalized AuNP were able to include organic guest molecules in their cavities in aqueous solution. Just like free cavitands (e.g., octa acid), cavitand functionalized AuNP includes guests such as 4,4'-dimethylbenzil and coumarin-1 through capsule formation. The exact structure of the capsular assembly is not known at this stage. Upon excitation there is communication between the excited guest present in the capsule and gold atoms and this results in quenching of phosphorescence from 4,4'-dimethylbenzil and fluorescence from coumarin-1.
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Affiliation(s)
- Barnali Mondal
- Department of Chemistry, University of Miami , Coral Gables, Flordia, 33124 United States
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19
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Tauran Y, Brioude A, Coleman AW, Rhimi M, Kim B. Molecular recognition by gold, silver and copper nanoparticles. World J Biol Chem 2013; 4:35-63. [PMID: 23977421 PMCID: PMC3746278 DOI: 10.4331/wjbc.v4.i3.35] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/11/2013] [Accepted: 06/18/2013] [Indexed: 02/05/2023] Open
Abstract
The intrinsic physical properties of the noble metal nanoparticles, which are highly sensitive to the nature of their local molecular environment, make such systems ideal for the detection of molecular recognition events. The current review describes the state of the art concerning molecular recognition of Noble metal nanoparticles. In the first part the preparation of such nanoparticles is discussed along with methods of capping and stabilization. A brief discussion of the three common methods of functionalization: Electrostatic adsorption; Chemisorption; Affinity-based coordination is given. In the second section a discussion of the optical and electrical properties of nanoparticles is given to aid the reader in understanding the use of such properties in molecular recognition. In the main section the various types of capping agents for molecular recognition; nucleic acid coatings, protein coatings and molecules from the family of supramolecular chemistry are described along with their numerous applications. Emphasis for the nucleic acids is on complementary oligonucleotide and aptamer recognition. For the proteins the recognition properties of antibodies form the core of the section. With respect to the supramolecular systems the cyclodextrins, calix[n]arenes, dendrimers, crown ethers and the cucurbitales are treated in depth. Finally a short section deals with the possible toxicity of the nanoparticles, a concern in public health.
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Boccia A, D'Orazi F, Carabelli E, Bussolati R, Arduini A, Secchi A, Marrani AG, Zanoni R. Assembly of Gold Nanoparticles on Functionalized Si(100) Surfaces through Pseudorotaxane Formation. Chemistry 2013; 19:7999-8006. [DOI: 10.1002/chem.201204318] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 03/13/2013] [Indexed: 11/06/2022]
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21
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He X, Xu XB, Wang X, Zhao L. Positive homotropic allosteric binding of silver(i) ions in multidentate azacalixpyridine macrocycles: effect on the formation and stabilization of silver nanoparticles. Chem Commun (Camb) 2013; 49:7153-5. [PMID: 23831935 DOI: 10.1039/c3cc43415j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Xin He
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing 100084, China
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22
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Gulumian M, Kuempel ED, Savolainen K. Global challenges in the risk assessment of nanomaterials: Relevance to South Africa. S AFR J SCI 2012. [DOI: 10.4102/sajs.v108i9/10.922] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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23
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24
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Samanta SR, Kulasekharan R, Choudhury R, Jagadesan P, Jayaraj N, Ramamurthy V. Gold nanoparticles functionalized with deep-cavity cavitands: synthesis, characterization, and photophysical studies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:11920-11928. [PMID: 22809255 DOI: 10.1021/la302478e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this report, we present methods of functionalization of AuNP's with deep-cavity cavitands that can include organic molecules. Two types of deep-cavity cavitand-functionalized AuNP's have been synthesized and characterized, one soluble in organic solvents and the other in water. Functionalized AuNP soluble in organic solvents forms a 1:1 host-guest complex where the guest is exposed to the exterior solvents. The one soluble in water forms a 2:1 host-guest complex where the guest is protected from solvent water. Phosphorescence from thiones and benzil included within heterocapsules attached to AuNP was quenched by gold atoms present closer to the guests included within deep-cavity cavitands. During this investigation, we have synthesized four new deep-cavity cavitands. Of these, two thiol-functionalized hosts allowed us to make stable AuNP's. However, AuNP's protected with two amine-functionalized cavitands tended to aggregate within a day.
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Affiliation(s)
- Shampa R Samanta
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, USA
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25
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Sensing properties of silica nanoparticles functionalized with anion binding sites and sulforhodamine B as fluorogenic signalling unit. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.10.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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26
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Cioran AM, Musteti AD, Teixidor F, Krpetić Ž, Prior IA, He Q, Kiely CJ, Brust M, Viñas C. Mercaptocarborane-capped gold nanoparticles: electron pools and ion traps with switchable hydrophilicity. J Am Chem Soc 2011; 134:212-21. [PMID: 22136484 DOI: 10.1021/ja203367h] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A simple single-phase method for the preparation of ca. 2 nm gold nanoparticles capped with mercaptocarborane ligands is introduced. The resultant monolayer protected clusters (MPCs) exhibit redox-dependent solubility and readily phase transfer between water and nonpolar solvents depending on the electronic and ionic charge stored in the metal core and in the ligand shell, respectively. The particles and their properties have been characterized by high angle annular dark field imaging in a scanning transmission electron microscope, elemental analysis, centrifugal particle sizing, UV-vis and FTIR spectroscopy, and thermogravimetric analysis and by (1)H, (11)B, and (7)Li NMR spectroscopy. Cellular uptake of the MPCs by HeLa cells has been studied by TEM, and the subsequent generation of reactive oxygen species inside the cells has been evaluated by confocal fluorescence microscopy. These MPCs qualitatively showed significant toxicity and the ability to penetrate into most cell compartments with a strong tendency of finally residing inside membranes. Applications in catalysis, electrocatalysis, and biomedicine are envisaged.
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Affiliation(s)
- Ana M Cioran
- Institut de Ciencia de Materials de Barcelona, ICMAB-CSIC, Campus UAB, E-08193 Bellaterra, Spain
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Kimura M, Yokokawa M, Sato S, Fukawa T, Mihara T. Volatile Organic Compound Sensing by Gold Nanoparticles Capped with Calix[4]arene Ligand. CHEM LETT 2011. [DOI: 10.1246/cl.2011.1402] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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28
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Sabahat S, Janjua NK, Brust M, Akhter Z. Electrochemical fabrication of self assembled monolayer using ferrocene-functionalized gold nanoparticles on glassy carbon electrode. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.05.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Li T, Zhou Y, Sun J, Tang D, Guo S, Ding X. Ultrasensitive detection of mercury(II) ion using CdTe quantum dots in sol-gel-derived silica spheres coated with calix[6]arene as fluorescent probes. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0655-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Yan H, Luo J, Xie HM, Xie DX, Su Q, Yin J, Wanjala BN, Diao H, An DL, Zhong CJ. Cationic recognition by tert-butylcalix[4]arene-functionalized nanoprobes. Phys Chem Chem Phys 2011; 13:5824-30. [PMID: 21327207 DOI: 10.1039/c0cp02658a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A nanoparticle-based strategy has been demonstrated using structurally-tailored tert-butylcalixarenes immobilized on gold nanoparticles to tune the guest access to the calixarene cone cavity for cationic recognition. This strategy exploits the interparticle charge-induced aggregation upon selective capture of metal cations into the nanoparticle-immobilized tert-butylcalixarenes, which produces calorimetric changes for the detection. A possible pathway for the binding of M(n+) into the t-BCA structure and the interparticle interaction is proposed for the formation of an electric double layer inducing the interparticle association responsible for the red-shifted surface plasmon resonance band of the nanoparticles. The value of this class of calorimetric nanoprobes will be in the area of designing advanced host-guest probes using a variety of calixarene ligands for ionic recognition in a simplistic detection format.
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Affiliation(s)
- Hong Yan
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, USA
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31
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Boccia A, Lanzilotto V, Di Castro V, Zanoni R, Pescatori L, Arduini A, Secchi A. Preparation, reactivity and controlled release of SAMs of calix[4,6]arenes and calix[6]arene-based rotaxanes and pseudorotaxanes formed on polycrystalline Cu. Phys Chem Chem Phys 2011; 13:4452-62. [DOI: 10.1039/c0cp01921f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Zaman MB, Bardelang D, Lang S, Karim MR, Wu X, Jakubek ZJ, Udachin K, Ratcliffe CI, Ripmeester JA, Yu K. Nanoscale assembly of photoluminescent quantum dots on the surface of calix[8]arene microcrystals. CrystEngComm 2011. [DOI: 10.1039/c0ce00930j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Dionisio M, Maffei F, Rampazzo E, Prodi L, Pucci A, Ruggeri G, Dalcanale E. Guest-controlled aggregation of cavitand gold nanoparticles and N-methyl pyridinium-terminated PEG. Chem Commun (Camb) 2011; 47:6596-8. [DOI: 10.1039/c1cc11192b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Li X, Liu D, Wang Z. Highly selective recognition of naphthol isomers based on the fluorescence dye-incorporated SH-β-cyclodextrin functionalized gold nanoparticles. Biosens Bioelectron 2011; 26:2329-33. [DOI: 10.1016/j.bios.2010.10.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Revised: 10/06/2010] [Accepted: 10/06/2010] [Indexed: 10/18/2022]
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35
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Velu R, Padma Malar E, Ramakrishnan VT, Ramamurthy P. Acridinedione-functionalized gold nanoparticles and model for the binding of 1,3-dithiol linked acridinedione on gold clusters. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.08.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Huc V, Npetgat E, Guérineau V, Bourcier S, Dos Santos A, Guillot R, Baltaze JP, Martini C. p-(Benzyloxy)calix[8]arene Synthesis Revisited: p-(Benzyloxy)calix[4]-, p-(Benzyloxy)calix[5]-, p-(Benzyloxy)calix[7]-, and p-(Benzyloxy)bis(homooxa)calix[4]arenes. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901405] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Krpetić Z, Nativo P, Porta F, Brust M. A multidentate peptide for stabilization and facile bioconjugation of gold nanoparticles. Bioconjug Chem 2010; 20:619-24. [PMID: 19220052 DOI: 10.1021/bc8003028] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gold nanoparticles of two different sizes stabilized by a 15-mer peptide ligand specifically designed for this purpose have been prepared in aqueous solution and characterized by UV-vis spectroscopy and TEM. The presence of the ligand and its binding mode to the particles via its four cystein thiols is evidenced by FTIR and NMR spectroscopy. Biotinylation of the particles via binding to a freely accessible lysine residue is demonstrated.
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Affiliation(s)
- Zeljka Krpetić
- Dipartimento di Chimica Inorganica Metallorganica Analitica Lamberto Malatesta, University of Milan, Via Venezian 21, Milan, Italy
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38
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Martínez-Máñez R, Sancenón F, Hecht M, Biyikal M, Rurack K. Nanoscopic optical sensors based on functional supramolecular hybrid materials. Anal Bioanal Chem 2010; 399:55-74. [DOI: 10.1007/s00216-010-4198-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 09/02/2010] [Accepted: 09/05/2010] [Indexed: 01/10/2023]
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39
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40
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Pescatori L, Boccia A, Ciesa F, Rossi F, Grillo V, Arduini A, Pochini A, Zanoni R, Secchi A. The Effect of Ligand Denticity in Size-Selective Synthesis of Calix[n]arene-Stabilized Gold Nanoparticles: A Multitechnique Approach. Chemistry 2010; 16:11089-99. [DOI: 10.1002/chem.201001039] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Loumaigne M, Praho R, Nutarelli D, Werts MHV, Débarre A. Fluorescence correlation spectroscopy reveals strong fluorescence quenching of FITC adducts on PEGylated gold nanoparticles in water and the presence of fluorescent aggregates of desorbed thiolate ligands. Phys Chem Chem Phys 2010; 12:11004-14. [PMID: 20668732 DOI: 10.1039/c004167j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Colloidal gold particles functionalised with oligoethylene-glycolated disulfide ligands and fluorescent moieties derived from fluorescein isothiocyanate (FITC) have been prepared and studied in aqueous suspension using fluorescence correlation spectroscopy (FCS). FCS probes the dynamics of the particles at the single object level, and reveals the desorption of fluorescent ligands which subsequently aggregate into larger (slower diffusing) objects. Cross-correlation spectroscopy of the FITC fluorescence and the Rayleigh-Mie scattering (RM-FCCS) of the gold cores shows that the only detectable fluorescent objects are free ligands and aggregates not associated with a gold particle. The fluorescence of bound fluorophores is quenched making their fluorescence too weak to be detected. FCS and RM-FCCS are useful tools for characterising functionalised noble metal particles in solution, under conditions similar to those used in optical bio-imaging. Desorption of thiolates from gold nanoparticles needs to be taken into account when working with these materials at low concentration.
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Affiliation(s)
- Matthieu Loumaigne
- CNRS, Laboratoire Aimé Cotton (UPR 3321), Université Paris Sud, Bâtiment 505, F-91405 Orsay, France
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42
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Yao Y, Sun Y, Han Y, Yan C. Preparation of Resorcinarene-Functionalized Gold Nanoparticles and Their Catalytic Activities for Reduction of Aromatic Nitro Compounds. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090135] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Pillay J, Ozoemena KI, Tshikhudo RT, Moutloali RM. Monolayer-protected clusters of gold nanoparticles: impacts of stabilizing ligands on the heterogeneous electron transfer dynamics and voltammetric detection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:9061-9068. [PMID: 20496956 DOI: 10.1021/la904463g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Surface electrochemistry of novel monolayer-protected gold nanoparticles (MPCAuNPs) is described. Protecting ligands, (1-sulfanylundec-11-yl)tetraethylene glycol (PEG-OH) and (1-sulfanylundec-11-yl)poly(ethylene glycol)ic acid (PEG-COOH), of three different percent ratios (PEG-COOH:PEG-OH), 1:99 (MPCAuNP-COOH(1%)), 50:50 (MPCAuNP-COOH(50%)), and 99:1 (MPCAuNP-COOH(99%)), were studied. The electron transfer rate constants (k(et)/s(-1)) in organic medium decreased as the concentration of the surface-exposed -COOH group in the protecting monolayer ligand is increased: MPCAuNP-COOH(1%) (approximately 5 s(-1)) > MPCAuNP-COOH(50%) (approximately 4 s(-1)) > MPCAuNP-COOH(99%) (approximately 0.5 s(-1)). In aqueous medium, the trend is reversed. The surface pK(a) was estimated as approximately 8.2 for the MPCAuNP-COOH(1%), while both MPCAuNP-COOH(50%) and MPCAuNP-COOH(99%) showed two pK(a) values of about 5.0 and approximately 8.0. These results have been interpreted in terms of the quasi-solidity and quasi-liquidity of the terminal -OH and -COOH head groups, respectively. MPCAuNP-COOH(99%) excellently suppressed the voltammetric response of the ascorbic acid but enhanced the electrocatalytic detection of epinephrine compared to the other MPCAuNPs studied. This study reveals important factors that should be considered when designing electrode devices that employ monolayer-protected gold nanoparticles and possibly for some other redox-active metal nanoparticles.
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Affiliation(s)
- Jeseelan Pillay
- Department of Chemistry, University of Pretoria, Pretoria 0002, South Africa
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44
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Navarro JRG, Plugge M, Loumaigne M, Sanchez-Gonzalez A, Mennucci B, Débarre A, Brouwer AM, Werts MHV. Probing the interactions between disulfide-based ligands and gold nanoparticles using a functionalised fluorescent perylene-monoimide dye. Photochem Photobiol Sci 2010; 9:1042-54. [PMID: 20514373 DOI: 10.1039/c0pp00063a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The binding of disulfides to gold nanoparticles was investigated using fluorescence spectroscopy and a perylene-monoimide dye coupled to a dissymmetric disulfide via a tetraethyleneglycolalkyl chain (PMImSS). Quantum chemical calculations using the polarizable continuum model (PCM) predict a strong quenching of perylene-monoimide fluorescence by gold nanoparticles as a result of efficient excitation energy transfer from the dye to the particle. Such quenching is indeed observed when unfunctionalised gold nanoparticles are added to a solution of PMImSS. The fluorimetric titration curves show behaviour indicative of the existence of an equilibrium between free and bound ligands (association constant 5 x 10(5) M(-1)), whereas the affinity of thiols and disulfide for gold surfaces is in general assumed to be much higher. Gold nanoparticles fully functionalised with PMImSS were synthesised and purified. Fluorescence correlation spectroscopy shows the appearance of free PMImSS ligands in dilute (approx. pM) suspensions of these PMImSS-functionalised nanoparticles over a period of several days.
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Affiliation(s)
- Julien R G Navarro
- Ecole Normale Supérieure de Cachan/Bretagne, Laboratoire SATIE (UMR 8029), Campus de Ker Lann, F-35170 Bruz, France
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45
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Sun Y, Yao Y, Yan CG, Han Y, Shen M. Selective decoration of metal nanoparticles inside or outside of organic microstructures via self-assembly of resorcinarene. ACS NANO 2010; 4:2129-2141. [PMID: 20235516 DOI: 10.1021/nn901412n] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A facile template method was described for the decoration of organic microtubes with various nanoparticles (NPs), which was achieved in a straightforward "mix" process in the presence of templates and resorcinarene-functionalized nanoparticles (AuNPs, AgNPs, PtNPs, and PdNPs). A combination of UV-visible spectra and Fourier transform-infrared spectroscopy, transmission electron microscopy, field emission scanning electron microscopy, X-ray diffraction measurements, contact angle experiment, and energy dispersive X-ray spectroscopy was used for analysis. Interestingly, it was found that NPs could be encapsulated into the microtubes during the process of resorcinarene self-assembly. As a model system, AuNP-loaded microtubes were investigated and discussed, and loaded nanoparticles with a narrow size distribution were observed. Furthermore, AuNP-decorated microsheets could also be obtained by the assembly of resorcinarene with hydrazide groups. Remarkably, it was also observed that the incorporated NPs could be redispersed by treating the NP-loaded microtubes, which made it possible to realize the uptake and release of given nanoparticles. This procedure was scalable to diverse resorcinarene-based self-assemblies and applicable to various metal nanoparticles that decorate by resorcinarenes.
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Affiliation(s)
- Yan Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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46
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Huc V, Guérineau V. C3v(Trimethyl)p-(Benzyloxy)calix[6]arene: A Versatile Platform for the Synthesis of FunctionalizedC3vCalix[6]arenes. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901281] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Han C, Li H. Host-molecule-coated quantum dots as fluorescent sensors. Anal Bioanal Chem 2009; 397:1437-44. [DOI: 10.1007/s00216-009-3361-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 11/26/2009] [Accepted: 11/29/2009] [Indexed: 12/20/2022]
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48
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Wu Y, Zuo F, Zheng Z, Ding X, Peng Y. A Novel Approach to Molecular Recognition Surface of Magnetic Nanoparticles Based on Host-Guest Effect. NANOSCALE RESEARCH LETTERS 2009; 4:738-47. [PMID: 20596347 PMCID: PMC2894184 DOI: 10.1007/s11671-009-9314-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Accepted: 04/02/2009] [Indexed: 05/18/2023]
Abstract
A novel route has been developed to prepared beta-cyclodextrin (beta-CD) functionalized magnetic nanoparticles (MNPs). The MNPs were first modified with monotosyl-poly(ethylene glycol) (PEG) silane and then tosyl units were displaced by amino-beta-CD through the nucleophilic substitution reaction. The monotosyl-PEG silane was synthesized by modifying a PEG diol to form the corresponding monotosyl-PEG, followed by a reaction with 3-isocyanatopropyltriethoxysilane (IPTS). The success of the synthesis of the monotosyl-PEG silane was confirmed with (1)H NMR and Fourier transform infrared (FTIR) spectroscopy. The analysis of FTIR spectroscopy and X-ray photoelectron spectroscopy (XPS) confirmed the immobilization of beta-CD onto MNPs. Transmission electron microscopy (TEM) indicated that the beta-CD functionalized MNPs were mostly present as individual nonclustered units in water. The number of beta-CD molecules immobilized on each MNP was about 240 according to the thermogravimetric analysis (TGA) results. The as-prepared beta-CD functionalized MNPs were used to detect dopamine with the assistance of a magnet.
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Affiliation(s)
- Yuanpeng Wu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, People’s Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
| | - Fang Zuo
- Research Branch of Functional Materials, State Key Laboratory of Electronic Films & Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, People’s Republic of China
| | - Zhaohui Zheng
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, People’s Republic of China
| | - Xiaobin Ding
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, People’s Republic of China
| | - Yuxing Peng
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, People’s Republic of China
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Ha JM, Solovyov A, Katz A. Postsynthetic modification of gold nanoparticles with calix[4]arene enantiomers: origin of chiral surface plasmon resonance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:153-158. [PMID: 19072069 DOI: 10.1021/la802665t] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Gold nanoparticles postsynthetically modified with chiral 1,3-disubstituted diamino calix[4]arene ligands 2a and 2b are shown to exhibit a circular dichroism (CD)-active surface plasmon resonance absorption (SPR) band. Electronic communication between adsorbed ligand and the gold nanoparticle surface is evidenced in an almost 10-fold increase in the ligand molar ellipticity in the pi-pi* transition spectral range when bound to the gold surface relative to free solution. The footprint of ligand on the gold nanoparticle surface at saturation is measured to be 91 A(2) via monitoring the red shift in the SPR band accompanying ligand adsorption. At ligand concentrations above that required for surface saturation, the ellipticity of the band in the SPR spectral range plateaus to a constant value, whereas the ellipticity of the band in the pi-pi* transition spectral range continues to increase in a manner that corresponds to free ligand in solution. This critical observation correlates ligand adsorption and the onset of the CD-active SPR band. On the basis of the packing characteristics of the bulky calixarene ligand, which are controlled by achiral tert-butyl groups, and the postsynthetic nature of nanoaprticle surface modification of 4.7 nm gold cores used in this study, which precludes synthesis of chiral arrangements of gold atoms, a mechanism responsible for the CD-active SPR bands is proposed, which is based upon the influence of the asymmetric center of the chiral adsorbate on the electronic states of the metal nanoparticle core-an explanation supported by the observed interactions between the gold surface and adsorbed ligand.
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Affiliation(s)
- Jeong-Myeong Ha
- Department of Chemical Engineering, University of California at Berkeley, Berkeley, California 94720-1462, USA
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50
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Pescatori L, Arduini A, Pochini A, Secchi A, Massera C, Ugozzoli F. Monotopic and heteroditopic calix[4]arene receptors as hosts for pyridinium and viologen ion pairs: a solution and solid-state study. Org Biomol Chem 2009; 7:3698-708. [DOI: 10.1039/b906409e] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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