Shuangtian Dong

ORCID: 0000-0002-5799-788X
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About
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Research Areas
  • Advanced biosensing and bioanalysis techniques
  • Nanocluster Synthesis and Applications
  • Biosensors and Analytical Detection
  • Quantum Dots Synthesis And Properties
  • Electrochemical Analysis and Applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Advanced Nanomaterials in Catalysis
  • Polydiacetylene-based materials and applications
  • Luminescence and Fluorescent Materials
  • Inorganic and Organometallic Chemistry
  • Nonlinear Optical Materials Research
  • Electrochemical sensors and biosensors
  • Thermal and Kinetic Analysis
  • Carbon and Quantum Dots Applications
  • Advanced Sensor and Energy Harvesting Materials

Shandong University
2021-2022

Aqueous electrochemiluminescence (ECL) in the second near-infrared biowindow (NIR-II, 900–1700 nm) was anticipated for ECL evolution and spectral multiplexing. Herein, aqueous monochromatic with a single emission peak beyond 900 nm achieved by employing methionine (Met)-capped Au–Ag bimetallic nanoclusters (BNCs) as luminophores triethanolamine (TEOA) coreactant. The Met-capped BNCs surface-defect-induced PL around 756 were water-soluble synthesized via doping Au NCs Ag doping-in-growth way....

10.1021/acs.analchem.0c05187 article EN Analytical Chemistry 2021-03-08

Screening toxic-element-free and biocompatible electrochemiluminophores was crucial for electrochemiluminescence (ECL) evolution. Herein, l-glutathione (GSH)-capped Ag–Ga–In–S (AGIS) nanocrystals (NCs) were prepared by doping Ag–In–S (AIS) NCs in a doping-in-growth way utilized as model both ECL modulating developing multinary NC-based with enhanced performance than trinary NCs. AGIS not only primarily preserved the morphology, size, phase structure, water monodisperse characteristics of AIS...

10.1021/acs.analchem.0c03975 article EN Analytical Chemistry 2021-01-08

Electrochemiluminescence (ECL) is conventionally generated in either an annihilation or a coreactant route, and the overwhelming majority of ECL research conducted route via oxidizing reducing coexisting luminophore. The coreacant-free merely luminophore would break through ceiling excluding detrimental effects exogenous dissolved oxygen. Herein, by exploiting rich-electron nature n-type nanocrystals (NCs), achieved 3-mercaptopropionic acid (MPA) mercaptosuccinic (MSA) capped InP/ZnS NCs,...

10.1021/acs.analchem.1c04612 article EN Analytical Chemistry 2021-12-28

The photoluminescence, electroluminescence, and electrochemiluminescence from nanocrystals (NCs) have been extensively exploited for both fundamental applied investigation over two decades, while the understanding of chemiluminescence (CL) NCs is still far clear by now. Herein, a general route triggering CL NC luminophore proposed exploiting charge transfer between n-type oxidants. Oxidants, such as K2S2O8, H2O2, KMnO4, NaClO, can chemically inject hole onto valence band (VB)...

10.1021/acs.analchem.2c01770 article EN Analytical Chemistry 2022-06-08

Electrochemiluminescence (ECL) of low triggering potential is strongly anticipated for ECL assays with less inherent electrochemical interference and improved long-term stability the working electrode. Herein, effects thiol capping agents states luminophores, i.e., thiol-capped CuInS2@ZnS nanocrystals (CuInS2@ZnS-Thiol), on CuInS2@ZnS-Thiol/N2H4·H2O were explored Au The agent glutathione (GSH) not only enabled stronger oxidative-reduction than other but also demonstrated largest shift upon...

10.1021/acs.analchem.1c01601 article EN Analytical Chemistry 2021-08-31

Redox mediators can facilitate the electrochemical communication between targets and electrodes for material characterization investigation. To provide an alternative to chemical-based redox mediators, herein, we present a nanoparticle-based mediator, i.e., trisodium citrates (TSC)-capped triangular silver nanoplates (Tri-Ag-NPTSC), which demonstrates efficient oxidative process at around 0.13 V (vs Ag/AgCl) with acceptable reversibility by exploiting interaction carbonyl group of TSC Ag...

10.1021/acs.analchem.0c05342 article EN Analytical Chemistry 2021-02-02

The overwhelming majority of commercially available chemiluminescence (CL) assays are conducted in the eye-visible region. Herein, a near-infrared (NIR) aqueous CL strategy was proposed with CuInS2@ZnS nanocrystals (CIS@ZnS NCs) as emitters. Hydrazine hydrate (N2H4·H2O) could inject electrons into conduction band CIS@ZnS NCs and simultaneously transformed to intermediate radical N2H3•. N2H3• reduced dissolved oxygen (O2) O2-•, while O2-• holes valence NCs. recombination at Cu+ defects...

10.1021/acs.analchem.1c01380 article EN Analytical Chemistry 2021-06-17

Mechanoluminescence (ML) is one kind of mechanical-to-optical energy conversion, and a strategy toward achieving bright elastic ML emission strongly anticipated for application. Herein, ternary-host proposed synthesizing heterojunction materials with eye-visible under an ultralow pressure 2 N, in which ZnS, CaCO3, SrCO3 are employed as precursors to prepare the (Ca0.5Sr0.5)ZnOS/xZnS. Upon partially substituting precursor ZnS MnCO3, Mn2+ activator could introduce luminescent centers carrier...

10.1021/acs.jpcc.1c09532 article EN The Journal of Physical Chemistry C 2022-01-11

All commercial chemiluminescence (CL) assays are conducted with either glow or flash CL of eye-visible waveband from chemical luminophores. Herein, and flash, as well adjustable the same nanoparticle luminophore thiol-capped CuInS2@ZnS nanocrystals (CIS@ZnS-Thiol), proposed via extensively exploiting differed redox nature triggering reagents. Taking thiosalicylic acid (TSA) model thiol-capping agent, electron-injection-initiated charge transfer between CIS@ZnS-TSA reductant can bring out...

10.1021/acs.analchem.2c01083 article EN Analytical Chemistry 2022-04-29

An effective way to enhance the charge injection and radiative recombination within atomically precise nanoclusters (NCs) is proposed with Ag29(BDT)12 (BDT = 1,3-benzenedithiol) Ag29(BDT)12(TPP)4 (TPP triphenylphosphine) as models. Surface-engineering phosphine ligands can passivate four naked Ag atom sites on surface of circumvent geometric packing limitation induced by wide footprint BDT, which endows enhanced electrochemical redox for improved well boosted photoluminescence (PL)...

10.1021/acs.jpcc.1c06268 article EN The Journal of Physical Chemistry C 2021-10-04

<p indent="0mm">Electrochemiluminescence (ECL) is the light emission triggered by electrochemical redox, and has been developed as an analytical technology with combined merits of electrochemistry chemiluminescence. ECL widely used in varied domains, but unfortunately its intensity usually changes along proceeding reaction, which makes it difficult to accurately determine spectrum a wavelength-scanning way photomultiplier tube (PMT) detector. The PMT-based traditional analyzers are commonly...

10.1360/ssc-2021-0022 article EN Scientia Sinica Chimica 2021-06-01
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