2026-10-14T17:53:53Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33829551 2026-09-16T06:11:23Z category_146 category_21 category_272 category_873 category_734 category_61 category_106 portal_63 item_type_2 month_year_09_2026

Portable-Equipment-Assisted Colorimetric Hydrogel Kits Based on Quercetin-Reducing Silver Nanoparticles for Hg²⁺ Tests in Aquatic Products Qinghao Ge (19819765) Changzhuo Zheng (24961638) Chaoqun Hou (7526675) Xinyan Zhao (118385) Jun Chen (4238) Xiaolong Han (3433316) Juan Ding (144903) Yang Pu (5330972) Space Science Biotechnology Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Biological Sciences not elsewhere classified Developmental Biology Science Policy successfully synthesized using reducing silver nanoparticles novel silver nanoparticle dependent color change broad application prospect 5 ′- tetramethylbenzidine tmb ), generating 3 ′, 5 2 +</ sup polluted aquatic products colorimetric detection platform aquatic products tmb system platform shows work promises significant importance serious threat rgb </ quality monitoring oxidize 3 optimized conditions mercury ion linear range like activity interference performance inclusion complex human health excellent selectivity efficient method detection limit analysis app >- values 100 μm 023 μm As a highly hazardous heavy metal, mercury ion (Hg²⁺) poses a serious threat to human health through the intake of polluted aquatic products and water. Accordingly, the development of a simple, sensitive, and efficient method for Hg²⁺ detection is of significant importance. Herein, a novel silver nanoparticle (Qu-CD-AgNPs) was successfully synthesized using an inclusion complex of Qu and β-cyclodextrin, which forms an Ag–Hg alloy upon interaction with Hg²⁺, markedly enhancing its oxidase-like activity to oxidize 3,3′,5,5′-tetramethylbenzidine (TMB), generating a Hg²⁺ concentration-dependent color change. On this basis, a colorimetric detection platform for Hg²⁺ was fabricated by integrating the hydrogel-based Qu-CD-AgNPs + TMB system and a self-developed <i>RGB</i>-values-analysis app for portable equipment. Under the optimized conditions, the platform shows a linear range between 3 and 100 μM and a detection limit as low as 0.023 μM, as well as excellent selectivity and anti-interference performance. This work promises a broad application prospect in water-quality monitoring and the inspection of aquatic products. 2026-09-16T00:00:00Z Dataset Media 10.1021/acsomega.6c05867.s002 https://figshare.com/articles/media/Portable-Equipment-Assisted_Colorimetric_Hydrogel_Kits_Based_on_Quercetin-Reducing_Silver_Nanoparticles_for_Hg_sup_2_sup_Tests_in_Aquatic_Products/33829551 CC BY-NC 4.0