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....

To determine the intrinsic effects of body elements on electrochemiluminescence (ECL) metal nanoclusters (NCs), herein, a valence-state engineering strategy is developed to adjust NCs' ECL with bovine serum albumin (BSA)-stabilized AuNCs as model, in which valence state Au element, i.e., Au(0) and Au(I), performed via successively reducing precursor AuCl4– Au(I) BSA. The obtained BSA-AuNCs/N2H4 system leads three anodic processes at 0.37 (ECL-1), 0.85 (ECL-2), 1.45 V (ECL-3). ECL-1 generated...

Electrochemiluminescence (ECL) represents a widely explored technique to generate light, in which the emission intensity relies critically on charge-transfer reactions between electrogenerated radicals. Two types of mechanisms have been postulated for ECL generation, but manipulation and effective probing these routes remain fundamental challenge. Here, we demonstrate design quantum dot (QD) aerogels as novel luminophores via versatile water-induced gelation strategy. The strong electronic...

A low-triggering potential and a narrow-potential window are anticipated to decrease the electrochemical interference cross talk of electrochemiluminescence (ECL). Herein, by exploiting low oxidative (0.82 V vs Ag/AgCl) dihydrolipoic acid-capped sliver nanoclusters (DHLA-AgNCs), coreactant ECL system DHLA-AgNCs/hydrazine (N2H4) is proposed achieve efficient oxidative-reduction with 0.82 (vs 0.22 V. The low-triggering-potential narrow-potential-window nature can be primarily preserved upon...

For the screening of novel toxic-element-free and biocompatible electrochemiluminophores, electrochemiluminescence (ECL) multinary nanocrystals (NCs) was investigated for first time with Zn–Ag–In–S (ZAIS) NCs as model. Aqueous soluble ZAIS could bring out efficient reductive-oxidation ECL tri-n-propylamine coreactant, while coating a ZnS shell reduce surface defects NCs, enable 6.7-fold enhanced ZAIS/ZnS compared to NCs. about 4.2-fold that ternary CuInS2/ZnS spectrally similar Ru(bpy)32+...

Electrochemiluminescence (ECL) with high electrode compatibility and less electrochemical interference has conventionally been envisioned by lowering the oxidative potential of luminophores and/or screening a low potential. Herein, an alternative was developed employing environmental-friendly carbohydrazide as coreactant, which enabled serial oxidative-reduction ECL at one similar triggering around 0.55 V versus Ag/AgCl, including Ru(bpy)32+ well CdTe, CdSe, CuInS2/ZnS, Au nanocrystals....

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...

Single-color electrochemiluminescence (ECL) of nanoparticles is normally achieved in a bandgap engineered route via passivating the nanoparticle surface. Herein, when linear mercaptoalkanoic acids are employed as thiol-capping agent unary Au nanoclusters (NCs), single-stabilizer-capped strategy proposed to achieve surface defect-involved and single-color ECL from AuNCs with hydrazine (N2H4) coreactant. The carbon skeleton exhibits important effects on AuNCs, efficient oxidative-reductive...

A single-stabilizer-capped strategy is proposed for achieving highly efficient and surface-defect-involved electrochemiluminescence (ECL) from unary copper nanoclusters (NCs) via employing l-cysteine (Cys) as a capping agent of luminophore. The Cys-capped CuNCs (Cys-CuNCs) can be electrochemically injected with valence band (VB) holes exhibit eye-touchable ECL processes around +0.95 +1.15 V upon TPrA coreactant. Both accumulated spectra spooling demonstrated that the two are same single...

Coreactant-free electrochemiluminescence (ECL) is promising for removing the exogenous effects of coreactant and simplify operation procedures setups commercialized ECL bioassays. Herein, an electrosterically involved strategy achieving a low-triggering-potential (+0.21 V vs Ag/AgCl) coreactant-free from dual-stabilizer-capped CdTe nanocrystals (NCs) proposed with mercaptopropionic acid (MPA) hexametaphosphate (HMP) as capping agents luminophores. Upon employing NCs tag immunoassay, all tags...

The commercialized electrochemiluminescence (ECL) immunoassay is carried out by holding luminophore Ru(bpy)32+ at a given potential. Designing an electrochemiluminophore with narrow triggering potential window strongly anticipated to decrease the electrochemical cross-talk and improve flux of ECL in potential-resolved way. Herein, L-penicillamine-capped silver nanoclusters (LPA-AgNCs) are facilely synthesized utilized as tags perform sole 0.24 V employing hydrazine (N2H4) coreactant. maximum...

All of the commercialized electrochemiluminescence (ECL) immunoassays are automatically conducted at +1.40 V (vs Ag/AgCl) in coreactant route. To alleviate exogenous effect coreactants and simplify operation procedures, herein, a sulfur-vacancy-involved free electron strategy is proposed to exploit Au nanoclusters (NCs) as anodic electrochemiluminophores perform coreactant-free immunoassay. The deficient coordination between sulfhydryl Met core might induce departure partial S atoms enable...

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,...

Singlet oxygen (1O2) is an important reactive species (ROS) that intensively involved in natural photochemical and photobiological processes. Herein, selectively lighting up 1O2 achieved the aggregation-induced emission (AIE) of electrochemiluminescence (ECL) from Zn2+-mediated AIE assembly Au nanoclusters (Zn2+-AIE-AuNCs). Zn2+-AIE-AuNCs can exhibit efficient ECL photoluminescence (PL) along with generation energy charge transfer routes, respectively. The Zn2+-AIE-AuNCs/tripropylamine (TEA)...

Abstract The self‐activated mechanoluminescence (ML) of oxysulfides MZnOS (M = Ca, Sr, Ba) is very weak, and bright ML from these hosts usually achieved with activator‐doping strategy. Herein, a promising alkaline‐earth‐metal‐ion blending strategy, instead activator doping, proposed to achieve intense MZnOS. Upon partially substituting the Ca 2+ CaZnOS Ba vice versa, eye‐visible via exerting small mechanical stimulus 2 N onto obtained 1‐x x ZnOS (0 < 1). luminescence center for intrinsic...

Screening a novel electrochemiluminescence (ECL) system is crucial to ECL evolution. Herein, an efficient with less interference and environmental concern under physiological condition developed via unique internal Cu(I)/Cu(II) couple cycling amplified strategy by employing the glutathione- citrate-capped copper indium sulfide (CIS)/ZnS nanocrystals (NCs) as electrochemiluminophore N2H4·H2O co-reactant. CIS/ZnS NCs can be electrochemically injected valence band (VB) hole at 0.46 0.87 V (vs...

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)...

The electrochemiluminescence (ECL) bioassay is prominently carried out with the involvement of coreactant. To remove detrimental effects coreactant on ECL luminophores, herein, a promising immunoassay strategy biocompatible nanoparticles as luminophore proposed, which involves directly and electrochemically oxidizing methionine-capped Au (Met@Au) nanocrystals (NCs) without participation any Met@Au NCs are kind n-type nanoparticles, they can be injected valence band (VB) holes around +0.80...

Mechanoluminescent (ML) materials with highly-efficient and multicolored emission are strongly anticipated in the field of stress sensing information encryption.

The low-triggering-potential and potential-selective electrochemiluminescence for a highly selective immunoassay by exploiting AgInS 2 /ZnS nanocrystals as tag N H 4 coreactant.

Synergetic effects in Au–Ag bimetallic nanoclusters more favorably enhanced electrochemical redox induced electrochemiluminescence over photoexcitation photoluminescence.

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...