Zhaohong Su

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Verified

Zhaohong verified their affiliation via an institutional email.

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• PhD
• Professor (Ph.D. supervisor) at Hunan Agricultural University

“One stone–three birds”: we developed a smart portable electrochemical sensor based on electrodeposited ferrocene-functionalized multiwalled carbon nanotubes (FC-MWCNTs) for the in vitro and in vivo detection of nicotine (NIC) in tobacco samples.

Herein, the electrodeposition of paracetamol oxide (PA ox) for the intelligent portable ratiometric detection of nicotine (NIC) and ethyl vanillin β- d -glucoside (EVG) is reported.

Nicotine (NIC) is a harmful substance, drug, pesticide and chemical that is widely found in tobacco. It has carcinogenic, teratogenic and neurotoxic effects that have raised serious concerns. Herein, a colorimetric sensor with dual-ratio and dual-mode for the detection of NIC in tobacco samples was reported. The localized surface plasmon resonance...

This work provides a facile electrochemical method for simultaneous detection of Cd²⁺, Pb²⁺, and Cu²⁺, on the base of one-pot synthesis of triethanolamine (TEOA)-functionalized gold nanoparticle (AuNP)-metal–organic framework-graphene oxide nanocomposites (TEOA@AuNPs-GO-UiO-66-NH2). In this method, TEOA not only can act as a base for the deprotonat...

The formation process of carbon dots (CDs) is mostly polymerization; recently, studies on the polymerization of carbon families (graphene oxide and C60) have been receiving exciting attention. Herein, a protocol of prepolymerization and electropolymerization of monomer (melamine) and nanomonomer (CDs fixed melamine residues) was proposed to prepare...

Abstract Cell mechanics is closely associated with cellular structure and function. However, the inability to measure both cellular force and viscoelasticity of statistically significant number of cells noninvasively remains a challenge for quantitative characterizations of various cellular functions and practical applications. Here a double resona...

Cell mechanics is closely associated with cellular structure and function. However, the inability to measure both cellular force and viscoelasticity of statistically significant number of cells noninvasively remains a challenge for quantitative characterizations of various cellular functions and practical applications. Here a double resonator piezo...

A smart portable sensor with ratio and dual-mode for in situ determination of nicotine (NIC) in tobacco leaves was reported. Activated screen-printed carbon electrode (SPCE) was used as a sensing platform. Paracetamol (PA) was used as a ratiometric reference. Current and potential dual-signal output was applied as dual-mode. The scanning electron m...

Platinum nanoparticles (PtNPs) have been attracted worldwide attention due to their versatile application potentials, especially in the catalyst and sensing fields. Herein, a facile synthetic method of triethanolamine (TEOA)-capped PtNPs (TEOA@PtNP) for electrochemiluminescent (ECL) and colorimetric immunoassay of SARS-CoV spike proteins (SARS-CoV...

A sensitive simultaneous electroanalysis of phytohormones indole-3-acetic acid (IAA) and salicylic acid (SA) based on a novel copper nanoparticles-chitosan film-carbon nanoparticles-multiwalled carbon nanotubes (CuNPs-CSF-CNPs-MWCNTs) composite was reported. CNPs were prepared by hydrothermal reaction of chitosan. Then the CuNPs-CSF-CNPs-MWCNTs com...

Sensitive simultaneous electrochemical sensing of phytohormones indole-3-acetic acid and salicylic acid based on a novel poly(L-Proline) nanoparticles–carbon dots composite consisting of multiwalled carbon nanotubes was reported in this study. The poly(L-Proline) nanoparticles–carbon dots composite was facilely prepared by the hydrothermal method,...

The integration of cadmium sulfide (CdS) and metal organic frameworks (MOFs) has shown promise in applications such as photocatalysis and sensing. Herein, a sensitive electrochemical immunosensor based on a room temperature, simple and fast aqueous synthetic strategy of in-situ selective growth nanocystalline CdS on zinc metal organic framework ([e...

Rutin plays an important role in treating human diseases and improving immunity, and it is still necessary to develop an effective method for the detection of rutin. Herein, metal organic frameworks (MOFs) composites consisting of MOFs, electro-reduced graphene oxide (ErGO) and gold nanoparticles (AuNPs) were reported for sensitive electroanalysis...

Nowadays, the non-specific adsorption of biomolecules is a key issue in numerous fields. Herein, an improved antifouling molecule was synthesized by grafting phenol with oligopoly (ethylene glycol), named (4-(2-(2-ethoxyethoxy) ethoxy) phenol (EEP). An ideal antifouling polymer coating (PEEP) was synthesized by the mechanism of electropolymerizatio...

A sensitive electroanalysis of bisphenol A (BPA) based on a novel metal organic frameworks (MOFs) composite of MOFs, gold nanoparticles (AuNPs) and electroreduced carbon dots (ErCDs) was reported. The MOFs composite (AuNPs-ErCDs-MOFs) was in-situ prepared by one-pot electrodeposition approach. Scanning electron microscopy (SEM), energy dispersive s...

Arg-Gly-Asp (RGD), a classical polypeptide, has been widely used in cell specific recognition. RGDY (Arg-Gly-Asp-Tyr) consists of the RGD sequence and tyrosine. Herein, a functional coating with cell-specific adhesion (with human umbilical vein endothelial cells as the model) and antiprotein adhesion (with bovine serum albumin as the model) propert...

A simple and rapid electrochemical synthesis strategy for in-situ fabrication of toluidine blue (TB)-functionalized metal organic framework ([email protected]) thin films via one-step reduction approach was reported. The [email protected] thin layer has been synthesized on the working electrode surface in different times at room temperature, and it...

Poly(L-lysine) (PLL)-3-hydroxyphenylboronic acid (3-PBA) composite was prepared onto an Au electrode via cyclic voltammetry (CV), which was characterized by electrochemical and quartz crystal microbalance (QCM) techniques, and used to promote adhesion of plant cells. 3-PBA can interact with glycosyl compounds on the cell wall to form negatively cha...

A porous thiolated polymer nanocomposite for sensitive and selective amperometric immunoassay of phytohormone (with indole-3-acetic acid (IAA) as the model) was reported, with a detection limit down to 0.13 pg/mL for IAA. Briefly, porous thiolated polymer nanocomposite was prepared via electro-assisted thiol-ene reaction of 2,5-dimercapto-1,3,4-thi...

An amperometric immunosensor based on new thiolated bionanocomposite with high dispersion of gold nanoparticles (AuNPs) for sensitive detection of indole-3-acetic acid (IAA) was reported in this work. Briefly, thiolated nanocomposite was prepared via microwave-assisted thiol-ene reaction of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) with oxidized poly...

A porous graphene (PG) bionanocomposites of PG, gold nanoparticles (AuNPs) and anti-indole-3-acetic acid (anti-IAA) antibody for sensitive and label-free amperometric immunoassay of IAA was reported. A PG film produced by a pre-reduction/electrochemical reduction process on a glassy carbon electrode (GCE) and then a homogeneous AuNPs layer electrod...

Pt nanoparticles (PtNPs) well-dispersed on thiolated polyaniline (TPANI)-multiwalled carbon nanotubes (MWCNTs) were prepared for enhanced electrocatalytic oxidation of methanol in acidic media. Briefly, the preparation of nanocomposites was carried out via microwave-assisted thiol–ene reaction of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) with oxidize...

A thiolated catechol (CA) consisting of 1,6-Hexanedithiol (HDT) and CA was modified on a gold (Au) electrode to obtain an amperometric L-cysteine sensor with detection limit of 60.6 nM. The preparation of thiolated CA was conducted via a thiol addition between HDT and electro-oxidized CA (EOCA). Briefly, the thiol addition reaction was accomplished...

A nanocomposite consisting of polyaniline and multiwalled carbon nanotubes was tethered with a thiolated thrombin-specific aptamer and placed on a glassy carbon electrode (GCE) to obtain a biosensor for thrombin that has a limit of detection of 80 fM. Tethering was accomplished via a thiol-ene reaction between thiolated thrombin aptamer (TTA) and o...

This study attempts to evaluate the capacity of wetland plants' ability to dissipate phenanthrene (PHE) under waterlogged conditions. The results indicate that Typha latifolia and Vertiveria zizanioides may efficiently degrade PHE, and were much more effective when under combined plant cultivation with the inoculation of Pseudomonas frederiksbergen...

Effective covalent immobilization of quinone and aptamer onto a gold electrode via thiol addition (a Michael addition) for sensitive and selective protein (with thrombin as the model) biosensing is reported, with a detection limit down to 20 fM for thrombin. Briefly, the thiol addition reaction of a gold electrode-supported 1,6-hexanedithiol (HDT)...

Square wave anodic stripping voltammetry was applied to detect Pb2+ and Cd2+ ions at a glassy carbon electrode modified with overoxidized 2-mercaptoethanesulfonate (MES)-tethered polypyrrole, Nafion and Bi. The PPy-MES interaction was examined by quartz crystal microbalance. Under optimum conditions (5-min preconcentration at −1.2 V vs. SCE in pH 4...

A new nanocomposite film that is highly electroactive in neutral aqueous solutions was prepared based on multiwalled carbon nanotubes (MWCNTs), polyaniline (PANI) and mercaptosuccinic acid (MSA). Briefly, a glassy carbon electrode (GCE) was firstly cast-coated with MWCNTs (MWCNTs/GCE), PANI was then electrodeposited on MWCNTs/GCE, and finally MSA w...

Typical surfactants, cetyltrimethylammonium bromide (CTAB), poly(vinyl pyrrolidone) (PVP) and sodium oleate (SOA), were employed to investigate their effect on fabricating CuO nanoleaves and Cu nanocages at room temperature. Comparing with the system without surfactant, adding surfactant could improve the monodispersity of CuO nanoleaves. The obtai...

Designed octahedral Cu nanocages were successfully prepared at room temperature by introducing Ni induced electroless strategy. This strategy balanced the inhibitory effect of sodium oleate (SOA) in the room temperature reduction process. Reduction rate was markedly improved as Ni2+ increasing. The Ni-induced electroless Cu deposition mechanism was...

Cu active nanoparticles (Cu ANPs) were synthesized in weakly acidic solution to preserve their catalytic activity. SiO2 capsules were designed to insulate Cu ANPs from oxidation. The weak interaction between SiO2 capsules and Cu ANPs ensured that the designed nanoparticles had good anti-oxidation property and potentially high activity. The increase...

We report on the thiol-ene chemistry guided preparation of a novel thiolated polymeric nanocomposite involving polyaniline (PANI), a functionalized thiol, e.g., sulfur-rich 2,5-dimercapto-1,3,4-thiadiazole (DMcT), and multiwalled carbon nanotubes (MWCNTs) for the sensitive differential pulse anodic stripping voltammetric determination of Cd(2+) and...

The Au film electrodeposited on glassy carbon or Au electrode in glucose-containing aqueous bath (Auglu) shows higher electrocatalytic activity toward glucose oxidation in neutral aqueous solution, as compared with those prepared in a conventional glucose-free bath and many previously reported analogs, and the nonenzymatic glucose sensor and glucos...

We report on the thiol-ene chemistry guided preparation of novel thiolated polymeric nanocomposite films of abundant anionic carboxylic groups for electrostatic enrichment and sensitive electroanalysis of cationic dopamine (DA) in neutral solution. Briefly, the thiol-ene nucleophilic reaction of a carboxylated thiol with oxidized polypyrrole (PPy),...

A glassy carbon electrode modified with Bi, Nafion and 2-mercaptoethanesulfonate (MES)–tethered polyaniline (PANI) was applied to sensitively detect Pb2 + and Cd2 + by square wave anodic stripping voltammetry. The PANI–MES interaction was examined by quartz crystal microbalance and Fourier transform infrared spectrophotometry. The electrode modific...

Enzyme immobilization is one of the key factors in constructing high-performance enzyme biosensors and biofuel cells (BFCs). Herein, we propose a new protocol for efficient immobilization of a glycoprotein enzyme based on the interaction of the 1, 2- or 1, 3-diols in the glycoprotein with a boronic acid functionalized monomer. Briefly, casting a mi...

Three-dimensional porous platinum (Ptpor) films are prepared based on Pt electrodeposition on polyaniline (PANI) modified electrodes followed by selective dissolution of PANI with HNO3. Electrochemical quartz crystal microbalance data suggest that the PANI-H2PtCl6 interaction involves redox and coordination reactions, depending on the working poten...

Differential pulse anodic stripping voltammetry was applied to detect Pb2+ and Cd2+ at a glassy carbon electrode modified with Nafion, poly(2,5-dimercapto-1,3,4-thiadiazole) (PDMcT), and multiwalled carbon nanotubes (MWCNTs). Preconcentration was accomplished at −1.0V vs. SCE in pH 5 buffer containing 400μgL−1 Bi3+ for 6min and resulted in high sen...

Angiotensin converting enzyme (ACE) plays a pivotal role in blood pressure regulation, and its interaction with an ACE inhibitor (ACEI) is an important research topic for treatment of hypertension. Herein, a low reagent consumption, multiparameter and highly sensitive quartz crystal microbalance (QCM) at 35-MHz fundamental frequency was utilized to...

We report on a glassy carbon electrode (GCE) modified with a lead ionophore and multiwalled carbon nanotubes. It can be applied to square wave anodic stripping voltammetric determination of Pb(II) ion after preconcentration of Pb(II) at −1.0 V (vs. SCE) for 300 s in pH 4.5 acetate buffer containing 400 μg L−1 of Bi(III). The ionophore-MWCNTs film o...

Covalent tethering of cysteamine to chitosan using glutaraldehyde yields thiol-functionalized chitosan (CS-SH). It was cast on a glassy carbon electrode which is found to be very stable in acidic solutions and to possess a strong affinity for Hg(II) ions as confirmed by quartz crystal microbalance measurements. A glassy carbon electrode modified wi...

Pt nanoparticles well dispersed on multiwalled carbon nanotubes (MWCNTs) were prepared for high-performance electrocatalytic oxidation of methanol in both acidic and alkaline media via the co-electrodeposition/stripping (CS) protocol, namely, co-electrodeposition of Pt and Cu followed by electrochemical stripping of Cu, as examined by cyclic voltam...

The electrochemical quartz crystal microbalance (EQCM) was used to study the electrosyntheses and electrochemical properties of two kinds of polyaniline (PANI)-thiol composite films in aqueous solutions, which were prepared by covalent binding of a thiol to the oxidized forms of PANI (PANI(post)-thiol, protocol A), and electropolymerization of anil...

We report here on the electroreduction of p-benzoquinone (BQ) or H2O2 as a new trigger for simple, fast, uniform, and controllable electrodeposition of chitosan (CS) hydrogels and biosensing nanocomposite films of CS, multiwalled carbon nanotubes (MWCNTs), and glucose oxidase (GOD). The multiparameter electrochemical quartz crystal microbalance (EQ...

Electrochemical quartz crystal impedance (QCI) technique was utilized to monitor in situ the adsorption of rutin (RT) onto a carbon nanotubes (CNTs)-modified gold electrode and to study the binding process of solution hemoglobin (Hb) to RT immobilized on the electrode. Time courses of the QCI parameters including crystal resonant frequency were sim...