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  1. AU="Cristina Della Pina"
  2. AU="Piris-Borregas, Salvador"
  3. AU="Sibony, Anne-Lise"
  4. AU="Bruschetta, Giuseppe"
  5. AU="Rigaud, Vagner Oliveira-Carvalho"
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  1. Article ; Online: Catalysis with Silver

    Mario Pagliaro / Cristina Della Pina / Francesco Mauriello / Rosaria Ciriminna

    Catalysts, Vol 10, Iss 1343, p

    From Complexes and Nanoparticles to MORALs and Single-Atom Catalysts

    2020  Volume 1343

    Abstract: Silver catalysis has a rich and versatile chemistry now expanding from processes mediated by silver complexes and silver nanoparticles to transformations catalyzed by silver metal organic alloys and single-atom catalysts. Focusing on selected recent ... ...

    Abstract Silver catalysis has a rich and versatile chemistry now expanding from processes mediated by silver complexes and silver nanoparticles to transformations catalyzed by silver metal organic alloys and single-atom catalysts. Focusing on selected recent advances, we identify the key advantages offered by these highly selective heterogeneous catalysts. We conclude by offering seven research and educational guidelines aimed at further progressing the field of new generation silver-based catalytic materials.
    Keywords silver ; metal-organic alloys (MORAL) ; silver-based catalytic materials ; single-atom catalysis ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Targeting the “Sweet Side” of Tumor with Glycan-Binding Molecules Conjugated-Nanoparticles

    Nora Bloise / Mohammad Okkeh / Elisa Restivo / Cristina Della Pina / Livia Visai

    Nanomaterials, Vol 11, Iss 2, p

    Implications in Cancer Therapy and Diagnosis

    2021  Volume 289

    Abstract: Nanotechnology is in the spotlight of therapeutic innovation, with numerous advantages for tumor visualization and eradication. The end goal of the therapeutic use of nanoparticles, however, remains distant due to the limitations of nanoparticles to ... ...

    Abstract Nanotechnology is in the spotlight of therapeutic innovation, with numerous advantages for tumor visualization and eradication. The end goal of the therapeutic use of nanoparticles, however, remains distant due to the limitations of nanoparticles to target cancer tissue. The functionalization of nanosystem surfaces with biological ligands is a major strategy for directing the actions of nanomaterials specifically to tumor cells. Cancer formation and metastasis are accompanied by profound alterations in protein glycosylation. Hence, the detection and targeting of aberrant glycans are of great value in cancer diagnosis and therapy. In this review, we provide a brief update on recent progress targeting aberrant glycosylation by functionalizing nanoparticles with glycan-binding molecules (with a special focus on lectins and anti-glycan antibodies) to improve the efficacy of nanoparticles in cancer targeting, diagnosis, and therapy and outline the challenges and limitations in implementing this approach. We envision that the combination of nanotechnological strategies and cancer-associated glycan targeting could remodel the field of cancer diagnosis and therapy, including immunotherapy.
    Keywords aberrant glycosylation ; glycan-binding molecules ; lectin ; antibody ; tumor targeting and therapy ; nanomedicine ; Chemistry ; QD1-999
    Subject code 610
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Photocatalytic and Oxidative Synthetic Pathways for Highly Efficient PANI-TiO 2 Nanocomposites as Organic and Inorganic Pollutant Sorbents

    Carolina Cionti / Cristina Della Pina / Daniela Meroni / Ermelinda Falletta / Silvia Ardizzone

    Nanomaterials, Vol 10, Iss 3, p

    2020  Volume 441

    Abstract: Polyaniline (PANI)-materials have recently been proposed for environmental remediation applications thanks to PANI stability and sorption properties. As an alternative to conventional PANI oxidative syntheses, which involve toxic carcinogenic compounds, ... ...

    Abstract Polyaniline (PANI)-materials have recently been proposed for environmental remediation applications thanks to PANI stability and sorption properties. As an alternative to conventional PANI oxidative syntheses, which involve toxic carcinogenic compounds, an eco-friendly procedure was here adopted starting from benign reactants (aniline-dimer and H 2 O 2 ) and initiated by ultraviolet (UV)-irradiated TiO 2 . To unlock the full potential of this procedure, we investigated the roles of TiO 2 and H 2 O 2 in the nanocomposites synthesis, with the aim of tailoring the properties of the final material to the desired application. The nanocomposites prepared by varying the TiO 2 :H 2 O 2 :aniline-dimer molar ratios were characterized for their thermal, optical, morphological, structural and surface properties. The reaction mechanism was investigated via mass analyses and X-ray photoelectron spectroscopy. The nanocomposites were tested on both methyl orange and hexavalent chromium removal. A fast dye-sorption was achieved also in the presence of interferents and the recovery of the dye was obtained upon eco-friendly conditions. An efficient Cr(VI) abatement was obtained also after consecutive tests and without any regeneration treatment. The fine understanding of the reaction mechanism allowed us to interpret the pollutant-removal performances of the different materials, leading to tailored nanocomposites in terms of maximum sorption and reduction capability upon consecutive tests even in simulated drinking water.
    Keywords nanocomposites ; hybrid nanoparticles ; polyaniline ; titanium dioxide ; pollutant sorption ; green synthesis ; Chemistry ; QD1-999
    Subject code 290
    Language English
    Publishing date 2020-02-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Inter-library loan at ZB MED

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  4. Article ; Online: Clean Transformation of Ethanol to Useful Chemicals. The Behavior of a Gold-Modified Silicalite Catalyst

    Ermelinda Falletta / Michele Rossi / Joaquim Henrique Teles / Cristina Della Pina

    Molecules, Vol 21, Iss 3, p

    2016  Volume 379

    Abstract: Upon addition of gold to silicalite-1 pellets (a MFI-type zeolite), the vapor phase oxidation of ethanol could be addressed to acetaldehyde or acetic acid formation. By optimizing the catalyst composition and reaction conditions, the conversion of ... ...

    Abstract Upon addition of gold to silicalite-1 pellets (a MFI-type zeolite), the vapor phase oxidation of ethanol could be addressed to acetaldehyde or acetic acid formation. By optimizing the catalyst composition and reaction conditions, the conversion of ethanol could be tuned to acetaldehyde with 97% selectivity at 71% conversion or to acetic acid with 78% selectivity at total conversion. Considering that unloaded silicalite-1 was found to catalyze the dehydration of ethanol to diethylether or ethene, a green approach for the integrated production of four important chemicals is herein presented. This is based on renewable ethanol as a reagent and a modular catalytic process.
    Keywords catalysis ; gold ; ethanol ; acetaldehyde ; acetic acid ; Organic chemistry ; QD241-441
    Language English
    Publishing date 2016-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Inter-library loan at ZB MED

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  5. Article: Triply green polyaniline: UV irradiation-induced synthesis of a highly porous PANI/TiO2 composite and its application in dye removal

    Cionti, Carolina / Cristina Della Pina / Daniela Meroni / Ermelinda Falletta / Silvia Ardizzone

    Chemical communications. 2018 Sept. 20, v. 54, no. 76

    2018  

    Abstract: An environmentally benign procedure for the preparation of polyaniline/TiO2 composites is presented. The UV irradiation-induced synthesis leads to materials with good crystallinity and tailored morphology, showing promising sorption and recycle ... ...

    Abstract An environmentally benign procedure for the preparation of polyaniline/TiO2 composites is presented. The UV irradiation-induced synthesis leads to materials with good crystallinity and tailored morphology, showing promising sorption and recycle properties in dye removal tests. A reaction mechanism is proposed on the basis of LC-MS and FT-IR investigations.
    Keywords chemical reactions ; crystal structure ; dyes ; Fourier transform infrared spectroscopy ; liquid chromatography ; mass spectrometry ; polymers ; reaction mechanisms ; sorption
    Language English
    Dates of publication 2018-0920
    Size p. 10702-10705.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/c8cc04745f
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Ulvan as novel reducing and stabilizing agent from renewable algal biomass: Application to green synthesis of silver nanoparticles

    Massironi, Alessio / Andrea Morelli / Cristina Della Pina / Dario Puppi / Federica Chiellini / Giovanna Batoni / Giuseppantonio Maisetta / Lucia Grassi / Semih Esin / Simona Braccini

    Carbohydrate polymers. 2019 Jan. 01, v. 203

    2019  

    Abstract: Silver nanoparticles (AgNPs) have been intensively investigated in virtue of their optical and antimicrobial properties, although their applications have been limited due to inherent toxicity and to the need of employing harsh chemical reagents for the ... ...

    Abstract Silver nanoparticles (AgNPs) have been intensively investigated in virtue of their optical and antimicrobial properties, although their applications have been limited due to inherent toxicity and to the need of employing harsh chemical reagents for the synthesis. In this work, ulvan, a sulfated polysaccharide extracted from green algae belonging to Ulva armoricana sp., was for the first time investigated and identified as reducing and stabilizing agent for AgNPs synthesis by using milder conditions than those conventionally adopted by chemical methods. The synthesized AgNPs were thoroughly characterized to highlight the structure and the role exerted by ulvan in their synthesis and stabilization. The formation of AgNPs stabilized by a thick ulvan shell was assessed by UV–vis, XRD, TEM, DLS and zeta potential analyses. The developed Ulvan based AgNps showed an IC50 in the range of 10 μg/ml in Balb/3T3 mouse embryo fibroblasts and antimicrobial activity toward both Gram + and Gram − bacteria.
    Keywords algae ; antimicrobial properties ; bacteria ; biomass ; embryo (animal) ; fibroblasts ; inhibitory concentration 50 ; mice ; nanosilver ; polysaccharides ; stabilizers ; toxicity ; transmission electron microscopy ; ultraviolet-visible spectroscopy ; Ulva rigida ; X-ray diffraction ; zeta potential
    Language English
    Dates of publication 2019-0101
    Size p. 310-321.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2018.09.066
    Database NAL-Catalogue (AGRICOLA)

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