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1.
Chem Commun (Camb) ; 60(39): 5181-5184, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38647078

RESUMO

Novel Au-Se bond-based nanoprobes were designed for concurrent detection of PSA and PSMA in serum samples, aiming to enhance the early diagnosis of prostate cancer. These probes demonstrate robust stability, specificity and accuracy, underscoring their potential as non-invasive tools for diagnosis.


Assuntos
Antígenos de Superfície , Corantes Fluorescentes , Glutamato Carboxipeptidase II , Ouro , Antígeno Prostático Específico , Neoplasias da Próstata , Humanos , Neoplasias da Próstata/sangue , Neoplasias da Próstata/diagnóstico , Masculino , Antígeno Prostático Específico/sangue , Glutamato Carboxipeptidase II/sangue , Corantes Fluorescentes/química , Antígenos de Superfície/sangue , Ouro/química
2.
Anal Chem ; 96(17): 6812-6818, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38634576

RESUMO

Among the primary threats to human health worldwide, nonsmall cell lung cancer (NSCLC) remains a significant factor and is a leading cause of cancer-related deaths. Due to subtle early symptoms, NSCLC patients are diagnosed at advanced stages, resulting in low survival rates. Herein, novel Au-Se bond nanoprobes (NPs) designed for the specific detection of Calpain-2 (CAPN2) and Human Neutrophil Elastase (HNE), pivotal biomarkers in NSCLC, were developed. The NPs demonstrated exceptional specificity and sensitivity toward CAPN2 and HNE, enabling dual-color fluorescence imaging to distinguish between NSCLC cells and normal lung cells effectively. The NPs' performance was consistent across a wide pH range (6.2 to 8.0), and it exhibited remarkable resistance to biological thiol interference, indicating its robustness in complex physiological environments. These findings suggest the nanoprobe is a promising tool for early NSCLC diagnosis, offering a novel approach for enhancing the accuracy of cancer detection.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Corantes Fluorescentes , Neoplasias Pulmonares , Humanos , Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Carcinoma Pulmonar de Células não Pequenas/patologia , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patologia , Corantes Fluorescentes/química , Imagem Óptica , Ouro/química , Calpaína/metabolismo , Calpaína/análise , Biomarcadores Tumorais/análise , Biomarcadores Tumorais/metabolismo , Linhagem Celular Tumoral
3.
Chem Commun (Camb) ; 60(15): 2078-2081, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38293810

RESUMO

A Au-Se bond-based nanoprobe using 3',3-diselenopropionic acid to simultaneously link response chains for Pro-GRP protein and Cyfra21-1 was developed. Early diagnosis and subtyping of lung cancer can be achieved based on the nanoprobes' differential response of the probes to the two targets in lung cancer patients' serum.


Assuntos
Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/diagnóstico , Antígenos de Neoplasias , Queratina-19 , Corantes Fluorescentes
4.
Environ Sci Pollut Res Int ; 30(19): 55009-55023, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36882650

RESUMO

Phosphorus removal from wastewater has been considered as an effective method to control eutrophication and mitigate phosphorus deficiency. Phosphate adsorption using lanthanum-based materials has awakened much attention and triggered extensive research. In this study, novel flower-like LaCO3OH materials were synthesized via a one-step hydrothermal method and evaluated for phosphate removal from wastewater. The adsorbent with flower-like structures prepared at the hydrothermal reaction time of 4.5 h (BLC-4.5) exhibited the optimum adsorption performance. BLC-4.5 had a rapid removal rate with more than 80% of the saturated adsorbed phosphate removed within 20 min. Furthermore, the maximum phosphate adsorption capacity of BLC-4.5 was as high as 228.5 mg/g. Notably, the La leaching amount of BLC-4.5 was negligible in the pH range of 3.0-11.0. BLC-4.5 outperformed most of the reported La-based adsorbents in terms of removal rate, adsorption capacity, and La leaching amount. Moreover, BLC-4.5 had broad pH adaptability (3.0-11.0) and high selectivity for phosphate. BLC-4.5 also displayed excellent phosphate removal efficiency in actual wastewater and great recyclability. The potential adsorption mechanisms of phosphate on BLC-4.5 were precipitation, electrostatic attraction, and inner-sphere complexation via ligand exchange. This study demonstrates that the newly developed flower-like BLC-4.5 reported here is a promising adsorbent for the effective treatment of phosphate in wastewater.


Assuntos
Fosfatos , Poluentes Químicos da Água , Fosfatos/química , Águas Residuárias , Cinética , Fósforo , Adsorção , Lantânio/química
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