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Themed collection 2019 International Open Access Week Collection

41 items
Open Access Perspective

Fluorescent probes for organelle-targeted bioactive species imaging

The dynamic fluctuations of bioactive species in living cells are associated with numerous physiological and pathological phenomena. The emergence of organelle-targeted fluorescent probes has significantly facilitated our understanding on the biological functions of these species. This review describes the design, applications, challenges and potential directions of organelle-targeted bioactive species probes.

Graphical abstract: Fluorescent probes for organelle-targeted bioactive species imaging
Open Access Minireview

Visual kinetic analysis

Naked-eye comparison of reaction profiles is a powerful tool to extract mechanistic information – FAQ, video tutorial and templated examples included.

Graphical abstract: Visual kinetic analysis
From the themed collection: 2019 Chemical Science HOT Article Collection
Open Access Review Article

A review on graphene-based nanocomposites for electrochemical and fluorescent biosensors

Biosensors with high sensitivity, selectivity and a low limit of detection, reaching nano/picomolar concentrations of biomolecules, are important to the medical sciences and healthcare industry for evaluating physiological and metabolic parameters.

Graphical abstract: A review on graphene-based nanocomposites for electrochemical and fluorescent biosensors
Open Access Review Article

Carbon quantum dots and their biomedical and therapeutic applications: a review

The biomedical applications of the recently emerging carbon quantum dots are reviewed.

Graphical abstract: Carbon quantum dots and their biomedical and therapeutic applications: a review
Open Access Review Article

Scope of organometallic compounds based on transition metal-arene systems as anticancer agents: starting from the classical paradigm to targeting multiple strategies

The advent of the clinically approved drug cisplatin started a new era in the design of metallodrugs for cancer chemotherapy.

Graphical abstract: Scope of organometallic compounds based on transition metal-arene systems as anticancer agents: starting from the classical paradigm to targeting multiple strategies
Open Access Review Article

Green synthesis of silver nanoparticles: biomolecule-nanoparticle organizations targeting antimicrobial activity

In this review, we discuss the recent advances in green synthesis of silver nanoparticles, their application as antimicrobial agents and mechanism of antimicrobial mode of action.

Graphical abstract: Green synthesis of silver nanoparticles: biomolecule-nanoparticle organizations targeting antimicrobial activity
Open Access Review Article

Arylhydrazines: novel and versatile electrophilic partners in cross-coupling reactions

Arylhydrazines are extremely valuable compounds in organic chemistry that are widely used for the synthesis of a variety of biologically active molecules such as indoles, indazoles, pyrazoles, aryltriazoles, β-lactams and quinazolines.

Graphical abstract: Arylhydrazines: novel and versatile electrophilic partners in cross-coupling reactions
Open Access Review Article

Adsorptive environmental applications of MXene nanomaterials: a review

Due to their large specific surface area and abundant active surficial sites, MXenes can adsorb various environmental pollutants.

Graphical abstract: Adsorptive environmental applications of MXene nanomaterials: a review
Open Access Review Article

Advancements in six-membered cyclic carbonate (1,3-dioxan-2-one) synthesis utilizing carbon dioxide as a C1 source

This review article surveys literature methods for the synthesis of six-membered cyclic carbonates using various substrates in the presence of CO2 with special emphasis on the mechanistic aspects of the reactions.

Graphical abstract: Advancements in six-membered cyclic carbonate (1,3-dioxan-2-one) synthesis utilizing carbon dioxide as a C1 source
Open Access Review Article

A short review of recent advances in CO2 hydrogenation to hydrocarbons over heterogeneous catalysts

CO2 hydrogenation to hydrocarbons over heterogeneous catalysts.

Graphical abstract: A short review of recent advances in CO2 hydrogenation to hydrocarbons over heterogeneous catalysts
Open Access Review Article

A functional chitosan-based hydrogel as a wound dressing and drug delivery system in the treatment of wound healing

Functional active wound dressings are expected to provide a moist wound environment, offer protection from secondary infections, remove wound exudate and accelerate tissue regeneration, as well as to improve the efficiency of wound healing.

Graphical abstract: A functional chitosan-based hydrogel as a wound dressing and drug delivery system in the treatment of wound healing
Open Access Edge Article

A molecular design strategy toward enzyme-activated probes with near-infrared I and II fluorescence for targeted cancer imaging

A molecular design strategy is established to access diverse enzyme-activated probes that are excitable and emit in the NIR (I and II) region with favorable Stokes shifts, enabling targeted cancer imaging by real-time monitoring enzyme activities.

Graphical abstract: A molecular design strategy toward enzyme-activated probes with near-infrared I and II fluorescence for targeted cancer imaging
Open Access Edge Article

Plasmonic colloidosomes of black gold for solar energy harvesting and hotspots directed catalysis for CO2 to fuel conversion

Plasmonic black gold converts CO2 to methane using solar energy.

Graphical abstract: Plasmonic colloidosomes of black gold for solar energy harvesting and hotspots directed catalysis for CO2 to fuel conversion
From the themed collection: 2019 Chemical Science HOT Article Collection
Open Access Edge Article

Nickel-catalyzed C–N bond activation: activated primary amines as alkylating reagents in reductive cross-coupling

The reductive cross coupling of pyridinium salts derived from readily available primary alkyl amines with aryl halides has been achieved under mild reaction conditions using a nickel catalyst.

Graphical abstract: Nickel-catalyzed C–N bond activation: activated primary amines as alkylating reagents in reductive cross-coupling
Open Access Edge Article

Desulfonative photoredox alkylation of N-heteroaryl sulfones – an acid-free approach for substituted heteroarene synthesis

Photoredox-mediated alkylation of heteroaryl sulfones under redox-neutral, acid-free conditions to create drug-like molecules.

Graphical abstract: Desulfonative photoredox alkylation of N-heteroaryl sulfones – an acid-free approach for substituted heteroarene synthesis
Open Access Edge Article

Symmetry breaking and the turn-on fluorescence of small, highly strained carbon nanohoops

By breaking the centrosymmetry of the structure, the most strained carbon nanohoops become fluorescent as predicted by optical selection rules.

Graphical abstract: Symmetry breaking and the turn-on fluorescence of small, highly strained carbon nanohoops
From the themed collection: The ChemRxiv Collection
Open Access Edge Article

Controlled growth of imine-linked two-dimensional covalent organic framework nanoparticles

Highly crystalline, monodisperse, imine-linked covalent organic framework nanoparticles were obtained under Sc(OTf)3-catalyzed conditions and enlarged by a slow monomer addition technique that prevents secondary nucleation.

Graphical abstract: Controlled growth of imine-linked two-dimensional covalent organic framework nanoparticles
From the themed collection: The ChemRxiv Collection
Open Access Edge Article

Color-tunable lanthanide metal–organic framework gels

MOF gels with intrinsic emission color are prepared with 5-boronoisophthalic acid and Eu3+, Tb3+, and/or Dy3+. Single-metal gels exhibit trichromatic fluorescence, so full color emissions are readily obtained by tuning the type and/or ratio of Ln3+ ions to prepare mixed-metal gels. Nano-ribbons form from the precursors and then entangle together to generate the gels.

Graphical abstract: Color-tunable lanthanide metal–organic framework gels
From the themed collection: 2019 Chemical Science HOT Article Collection
Open Access Edge Article

Unusual fcc-structured Ag10 kernels trapped in Ag70 nanoclusters

A bioctahedral Ag10 kernel is locked by a pair of Mo7O2610− anions to form an inner Ag10@(Mo7O26)2 core which is further encapsulated by an outer Ag70 shell to form three-shell Ag10@(Mo7O26)2@Ag70 nanoclusters.

Graphical abstract: Unusual fcc-structured Ag10 kernels trapped in Ag70 nanoclusters
Open Access Edge Article

Site-selective protein conjugation at histidine

Site-selective conjugation generally requires both (i) molecular engineering of the protein of interest to introduce a conjugation site at a defined location and (ii) a site-specific conjugation technology.

Graphical abstract: Site-selective protein conjugation at histidine
Open Access Edge Article

Metal-free, intermolecular carbopyridylation of alkenes via visible-light-induced reductive radical coupling

An efficient, metal-free strategy for the intermolecular three-component carbopyridylation of styrenes, enabled by Hantzsch ester and visible light, has been described.

Graphical abstract: Metal-free, intermolecular carbopyridylation of alkenes via visible-light-induced reductive radical coupling
Open Access Edge Article

Selective C–H halogenation over hydroxylation by non-heme iron(IV)-oxo

Synthetic non-heme iron-oxo and iron-halide complexes promote selective halogenation of the sp3-C–H bonds via hydrogen atom abstraction and halide rebound phenomenon.

Graphical abstract: Selective C–H halogenation over hydroxylation by non-heme iron(iv)-oxo
Open Access Edge Article

Large-scale comparison of machine learning methods for drug target prediction on ChEMBL

The to date largest comparative study of nine state-of-the-art drug target prediction methods finds that deep learning outperforms all other competitors. The results are based on a benchmark of 1300 assays and half a million compounds.

Graphical abstract: Large-scale comparison of machine learning methods for drug target prediction on ChEMBL
Open Access Edge Article

A porous, electrically conductive hexa-zirconium(IV) metal–organic framework

Electrical conductivity is engendered in a pyrene containing hexa-zirconium(IV) metal–organic framework by physically encapsulating fullerenes within MOF cavity.

Graphical abstract: A porous, electrically conductive hexa-zirconium(iv) metal–organic framework
Open Access Edge Article

A thioether-directed palladium-cleavable linker for targeted bioorthogonal drug decaging

We describe the development of a bifunctional linker that simultaneously allows site-specific protein modification and palladium-mediated bioorthogonal decaging.

Graphical abstract: A thioether-directed palladium-cleavable linker for targeted bioorthogonal drug decaging
Open Access Edge Article

Transition-metal-free decarboxylative bromination of aromatic carboxylic acids

Aromatic acids are converted into aryl bromides simply and efficiently via decarboxylation providing new depth and insight into Hunsdiecker-type reactivity.

Graphical abstract: Transition-metal-free decarboxylative bromination of aromatic carboxylic acids
Open Access Edge Article

Rational design of a water-soluble NIR AIEgen, and its application in ultrafast wash-free cellular imaging and photodynamic cancer cell ablation

The first water-soluble NIR AIEgen was synthesized and used for ultrafast wash-free cellular imaging and photodynamic cancer cell ablation.

Graphical abstract: Rational design of a water-soluble NIR AIEgen, and its application in ultrafast wash-free cellular imaging and photodynamic cancer cell ablation
Open Access Edge Article

Fluorescent dyes and probes for super-resolution microscopy of microtubules and tracheoles in living cells and tissues

Nanoscopy compatible fluorescent tubulin probes can be used to stain microtubules and chitin-rich taenidia in the insect tracheoles.

Graphical abstract: Fluorescent dyes and probes for super-resolution microscopy of microtubules and tracheoles in living cells and tissues
Open Access Edge Article

MoleculeNet: a benchmark for molecular machine learning

A large scale benchmark for molecular machine learning consisting of multiple public datasets, metrics, featurizations and learning algorithms.

Graphical abstract: MoleculeNet: a benchmark for molecular machine learning
Open Access Paper

Black titania nanotubes/spongy graphene nanocomposites for high-performance supercapacitors

A simple method is demonstrated to prepare functionalized spongy graphene/hydrogenated titanium dioxide (FG-HTiO2) nanocomposites as interconnected, porous 3-dimensional (3D) network crinkly sheets.

Graphical abstract: Black titania nanotubes/spongy graphene nanocomposites for high-performance supercapacitors
Open Access Paper

Strain-enhanced properties of van der Waals heterostructure based on blue phosphorus and g-GaN as a visible-light-driven photocatalyst for water splitting

Many strategies have been developed to overcome the critical obstacles of fast recombination of photogenerated charges and the limited ability of semiconductor photocatalysts to absorb visible light.

Graphical abstract: Strain-enhanced properties of van der Waals heterostructure based on blue phosphorus and g-GaN as a visible-light-driven photocatalyst for water splitting
Open Access Paper

Monolayer black phosphorus by sequential wet-chemical surface oxidation

We report a straightforward chemical methodology for controlling the thickness of black phosphorus flakes down to the monolayer limit by layer-by-layer oxidation and thinning, using water as solubilizing agent.

Graphical abstract: Monolayer black phosphorus by sequential wet-chemical surface oxidation
Open Access Paper

Solid-state AIEnh-circularly polarised luminescence of chiral perylene diimide fluorophores

Chiral N,N′-bis(1-phenylethyl)perylene-3,4,9,10-tetracarboxylic acid diimide (BPP) exhibits solid-state aggregation-induced enhanced circularly polarized luminescence (AIEnh-CPL) in KBr, PMMA, and myo-IPU matrices..

Graphical abstract: Solid-state AIEnh-circularly polarised luminescence of chiral perylene diimide fluorophores
Open Access Paper

Effect of external electric field on nanobubbles at the surface of hydrophobic particles during air flotation

In this paper, the effect of external electric field on nanobubbles adsorbed on the surface of hydrophobic particles during air flotation was studied by molecular dynamics simulations.

Graphical abstract: Effect of external electric field on nanobubbles at the surface of hydrophobic particles during air flotation
Open Access Paper

Kinetics, equilibrium, statistical surface modeling and cost analysis of paraquat removal from aqueous solution using carbonated jujube seed

This paper reports the removal of paraquat from an aqueous solution using prepared carbonated jujube seed (JS/HSO-700).

Graphical abstract: Kinetics, equilibrium, statistical surface modeling and cost analysis of paraquat removal from aqueous solution using carbonated jujube seed
Open Access Paper

Facile solvothermal preparation of Fe3O4–Ag nanocomposite with excellent catalytic performance

A new Fe3O4–Ag nanocomposite was prepared via solvothermal method, demonstrating potential application in catalytic degradation of wastewater treatment and composite materials.

Graphical abstract: Facile solvothermal preparation of Fe3O4–Ag nanocomposite with excellent catalytic performance
Open Access Paper

A water-stable luminescent metal–organic framework for effective detection of aflatoxin B1 in walnut and almond beverages

Sensitive and rapid detection of aflatoxin B1 (AFB1) without using antibody or biomolecular modifications in water is achieved using a novel water-stable luminescent metal–organic framework (LMOF) termed Zr-CAU-24.

Graphical abstract: A water-stable luminescent metal–organic framework for effective detection of aflatoxin B1 in walnut and almond beverages
Open Access Paper

Predicting the electrical conductivity in polymer carbon nanotube nanocomposites based on the volume fractions and resistances of the nanoparticle, interphase, and tunneling regions in conductive networks

Some limited models have been suggested to determine the conductivity of polymer carbon nanotube (CNT) nanocomposites (PCNTs).

Graphical abstract: Predicting the electrical conductivity in polymer carbon nanotube nanocomposites based on the volume fractions and resistances of the nanoparticle, interphase, and tunneling regions in conductive networks
Open Access Paper

Improved performance of optical phased arrays assisted by transparent graphene nanoheaters and air trenches

Improved performances of optical phased arrays have been achieved assisted by graphene nanoheaters and air trenches.

Graphical abstract: Improved performance of optical phased arrays assisted by transparent graphene nanoheaters and air trenches
Open Access Paper

Sulfonated graphene oxide/Nafion composite membranes for high temperature and low humidity proton exchange membrane fuel cells

Preparation process of Nafion/Fe3O4–SGO composite membranes.

Graphical abstract: Sulfonated graphene oxide/Nafion composite membranes for high temperature and low humidity proton exchange membrane fuel cells
Open Access Paper

Paclitaxel prodrug based mixed micelles for tumor-targeted chemotherapy

Paclitaxel prodrug based mixed micelles with high drug loading and tumor targeting capacity for elevated chemotherapy.

Graphical abstract: Paclitaxel prodrug based mixed micelles for tumor-targeted chemotherapy
41 items

About this collection

In celebration of International Open Access Week 2019 we have drawn together some of our most popular papers from the last couple of years for you to enjoy. The cross-journal collection highlights the breadth of topics and high quality work that is published in Chemical Science and RSC Advances and they are of course free to read! Chemical Science and RSC Advances are proud to be fully Open Access journals.

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