Amino Acid Based Metal−Organic Nanofibers

Imaz, Inhar; Rubio-Martínez, Marta; Saletra, Wojciech J.; Amabilino, David B.; Maspoch, Daniel

doi:10.1021/ja908721t

Cited by 127 publications

(95 citation statements)

References 28 publications

(25 reference statements)

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“…These unique interactions give rise to multifunctional molecular materials with optical properties, electronic conductivity, magnetism and numerous others. Recently, a great attention is given to designed nanoscale ICPs with different morphologies such as spheres (Sun, Dong, & Wang, 2005;Champness, 2009;Imaz, Hernando, Molina, & Maspoch, 2009), cubes (Jung, & Oh, 2008), rods (Farha et al 2009;Rieter, Taylor, An, Lin, & Lin, 2006), wheels and nanofibres (Imaz, Martí nez, Saletra, Amabilino, & Maspoch, 2009) as they can be easily dispersed in many solvents and exhibit size/shape dependent properties. In particular, nanoscale 0-D and 1-D ICPs, integrated with optical and electrical properties has potential applications in molecular optoelectronics.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Electronic and Optical Properties of Cobalt(II) Dithiocarbamate Fluorescent Nanowires for Optoelectronic Devices

Ujjain¹,

Ahuja²,

Sharma³

et al. 2015

IJC

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Schiff base containing symmetric bis-dithiocarbamate ligand Na 2 [dtc-SB-dtc] (SB = Bi-Schiff base Phenylene diamine) is synthesized and metallated with Co(II)Cl 2 .6H 2 O to form [Co(dtc-SB-dtc).2H 2 O] n Co(dtc-SB) infinite coordination polymer (ICP) nanowires [Co(dtc-SB) NWs]. Pair of Satellites in X-ray photoelectron spectroscopy (XPS) spectrum of Co 2p confirm the formation of hexa-coordinated Co(II). Presence of hyperfine pattern in low temperature EPR spectrum is due to the splitting of octahedral ground state 4 T 1 for Co(II). Introduction of a rigid, non-planar, four membered dtc Cobalt chelating ring in coordination polymer assisted in reduction of photoinduced electron transfer (PET) process to yield high fluorescence. Prepared Co(dtc-SB) NWs are highly resistive however after suitable doping, exhibit p and n type conductivity. Temperature dependent conductivity results of different doping concentrations in NWs reflect activated type conduction with two different activation energies. UV-Visible absorption spectra show decrement in optical gap whereas emission spectra demonstrate quenching after p and n doping. Efficient quenching of emission indicates energy transfer between dopant ions and NWs.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Electronic and Optical Properties of Cobalt(II) Dithiocarbamate Fluorescent Nanowires for Optoelectronic Devices

Ujjain¹,

Ahuja²,

Sharma³

et al. 2015

IJC

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“…While this manuscript was under review, a very interesting paper was published that reports nanofibers from the controlled diffusion of Cu(II) ions into a solution containing NaOH and dor l-aspartic acid [80]. Extremely long (centimeters), well-defined nanofibers with diameters of 100-200 nm were obtained and imaged by TEM.…”

Section: Other Nanofibersmentioning

confidence: 99%

Metal-containing nanofibers via coordination chemistry

Hui

MacLachlan

2010

Coordination Chemistry Reviews

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“…Up to now, various types of biomolecules, such as nucleotides [34], proteins [35], peptides [36], amino acids [37] and nucleobases [38] have been used as the ligands to construct CPs. It also has been demonstrated that some CPs are capable of adsorbing and entrapping a broad range of molecules, due to their good biocompatibility and porosity [34,39].…”

Section: Introductionmentioning

confidence: 99%

In-Situ Self-Assembly of Zinc/Adenine Hybrid Nanomaterials for Enzyme Immobilization

et al. 2017

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Abstract:In this study, a one-step and facile immobilization of enzymes by self-assembly of zinc ions and adenine in aqueous solution with mild conditions was reported. Enzymes, such as glucose oxidase (GOx) and horseradish peroxidase (HRP), could be efficiently encapsulated in Zn/adenine coordination polymers (CPs) with high loading capacity over 90%. When the enzyme was immobilized by CPs, it displayed high catalytic efficiency, high selectivity and enhanced stability due to the protecting effect of the rigid framework. As a result, the relative activity of Zn/adenine nano-CP-immobilized GOx increased by 1.5-fold at pH 3 and 4-fold at 70 to 90 • C, compared to free GOx. The immobilized GOx had excellent reusability (more than 90% relative activity after being reused eight times). Furthermore, the use of this system as a glucose biosensor was also demonstrated by co-immobilization of two enzymes, detecting glucose down to 1.84 µM with excellent selectivity. The above work indicated that in-situ self-assembly of Zn/adenine CPs could be a simple and efficient method for biocatalyst immobilization.

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Amino Acid Based Metal−Organic Nanofibers

Abstract: Long chiral metal-organic nanofibers can be grown using conventional coordination chemistry and biologically derived components in a diffusion controlled growth procedure.

Cited by 127 publications

References 28 publications

Synthesis, Electronic and Optical Properties of Cobalt(II) Dithiocarbamate Fluorescent Nanowires for Optoelectronic Devices

Synthesis, Electronic and Optical Properties of Cobalt(II) Dithiocarbamate Fluorescent Nanowires for Optoelectronic Devices

Metal-containing nanofibers via coordination chemistry

In-Situ Self-Assembly of Zinc/Adenine Hybrid Nanomaterials for Enzyme Immobilization

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