Article
Engineering, Environmental
Jooyoung Kim, Hyunki Kim, Sungjun Kim, Jue-Hyuk Jang, Hyuntae Sohn, Seok Jin Hong, Junhyeong Kim, Gyeong Ho Han, Seonghyun Choe, Yung-Eun Sung, Soo Young Kim, Ho Won Jang, Tae Hwan Jo, Hyung-Kyu Lim, Sung Jong Yoo, Sang Hyun Ahn
Summary: This study presents a simple electrochemical strategy to fabricate atomic Pt clusters on Au dendrites, resulting in a significantly reduced Pt loading. The prepared Pt/Au/CP sample exhibits high selectivity for formic acid oxidation reaction and maintains stable activity even after cycling tests.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
I. Tyrone Ghampson, Hiroki Miura, Junichi Murakami, Kyoko K. Bando, Tetsuya Kodaira, Atsushi Takagaki, Tatsumi Ishihara, Tetsuya Shishido
Summary: This study investigates the activation of methane with nitric oxide on Au-Pt nanoparticles supported on alumina. The reaction produces HCN through C-H bond cleavage, NO dissociation, and C-N coupling reactions. The catalysts with different Au/Pt ratios have similar particle morphology and bulk properties but exhibit differences in electronic and geometric surface properties due to Au surface enrichment. The relative proportion of electron-deficient Pt sites on the catalysts' surface correlates with their activity for CH4 conversion and HCN formation.
Article
Spectroscopy
Abid Hussain, Hongbin Pu, Bingxue Hu, Da-Wen Sun
Summary: A surface-enhanced Raman spectroscopy method using silver-coated gold nanoparticles was developed for the screening of chemicals in liquid milk, achieving good detection results. This simple method could be used for detecting other unsafe chemicals in the future.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Nanoscience & Nanotechnology
Guolong Gu, Chen Chen, Shichao Zhang, Bo Yin, Jianxin Wang
Summary: A novel strategy of delivering nitric oxide (NO) for cancer chemotherapy was proposed using prodrug dimer self-assembly nanoparticles of NO donors, which significantly improved drug loading and delivery efficiencies, ultimately inducing tumor cell apoptosis. This approach opened up a new avenue for cancer chemotherapy and laid a theoretical basis for clinical translation of NO-based gas chemotherapy.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Majid Namayandeh Jorabchi, Mohsen Abbaspour, Elaheh K. Goharshadi, Sebastian Wohlrab
Summary: This study investigated the solvation of nanoclusters in ionic liquids using molecular dynamics simulations, showing that Pt and Au-Pt systems have higher solvation energies, which decrease with increasing temperature but increase with increasing nanocluster size. The structure of nanoclusters remained stable at different temperatures, but became more spherical at higher temperatures, with the core-shell structure of (Au-Pt)309 nanocluster unchanged. Anions were found to be closer to nanocluster surfaces than cations, supporting the DLVO theory, while charge separation was not complete and dynamics results showed differences in self-diffusion values among different metals.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Hua Fan, William Le Boeuf, Vivek Maheshwari
Summary: Multi-element materials, specifically Pt and Ni, are combined on self-assembled gold nanochains to improve biosensing ability and develop a detailed understanding of each element's role in dopamine oxidation. The synthesis process also provides a simple way to fabricate multi-element composites for electrocatalytic applications. Optimization of the catalyst's performance parameters is achieved by changing the relative ratios and morphology of Pt and Ni domains, with the morphology also affecting the oxidation state of Ni.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Physical
Xia Qiu, Haifeng Wei, Renjia Li, Yongxin Li
Summary: Bimetallic Au@Pt/Au NPs with triple-layered core-shell structure were successfully prepared and characterized. The single Au@Pt/Au NPs exhibited size-dependent properties for vol-tametric response and electron-transfer rate, and showed excellent electrocatalytic activity, long-term tolerance, and anti-toxicity compared with traditional Pt catalyst. This work provides new insight into conventional electrocatalysis and offers a platform for designing entirely new catalysts at single NPs level.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Yang Liu, Enbo Zhu, Jin Huang, Ao Zhang, Aamir Hassan Shah, Qingying Jia, Mingjie Xu, Ershuai Liu, Qiang Sun, Xiangfeng Duan, Yu Huang
Summary: Periodic assembly of Pt-Au Janus nanoparticles assisted by peptide T7 was used to create one-dimensional Pt-Au nanowires with periodic alternating Pt and Au nanoblocks. The Pt-Au NWs exhibited significantly improved performance, with 5.3 times higher specific activity and 2.5 times higher mass activity in methanol oxidation reaction (MOR) compared to commercial Pt/C catalyst. Furthermore, the periodic heterostructure enhanced the stability of Pt-Au NWs in MOR, with Pt-Au NWs retaining 93.9% of their initial mass activity, much higher than commercial Pt/C (30.6%).
Article
Multidisciplinary Sciences
Mohd Javed Akhtar, Maqusood Ahamed, Hisham Alhadlaq
Summary: Pt-coated Au nanoparticles exhibited higher uptake and cytotoxicity in human breast cancer cells compared to non-cancerous cells. The nanoparticles induced oxidative stress and loss of mitochondrial membrane potential. These findings suggest the potential of Pt-Au nanoparticles as a promising option for cancer therapy.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Chemistry, Applied
Jiale Zhang, Caijun Wu, Ruo Yuan, Jian-An Huang, Xia Yang
Summary: This study reports a subtle surface-enhanced Raman scattering (SERS) substrate for detecting the dithiocarbamate fungicide Thiram. By controlling the inter-particle spacing of gold-silver-gold nanoparticles, a remarkable enhancement of Raman signal and stability was achieved. This method holds potential for rapid assessment and identification of pesticides on foods.
Article
Materials Science, Multidisciplinary
Bin Liu, Peng He, Hao Kong, Danzhu Zhu, Gang Wei
Summary: In this study, a bifunctional peptide molecule was designed to self-assemble into peptide nanofibers and bind with graphene oxide to form nanohybrids. Biomimetic gold-platinum nanoparticles were synthesized along the peptide nanofibers. The resulting nanohybrids showed improved electrochemical activity and potential applications in biosensors.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Gui-Fei Huo, Qian Tu, Yi-Xiong Hu, Bo Jiang, Qi-Feng Zhou, Yanfei Niu, Xiaoli Zhao, Hong-Ming Ding, Jin Wen, Guang-Qiang Yin, Xueliang Shi, Lin Xu
Summary: This study presents a new approach for preparing supramolecular metallacycles with amplified CPL using hierarchical self-assembly, leading to the first example of highly effective CPL-active materials based on Pt center dot center dot center dot Pt interactions.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Selina S. Hess, Francesco Coppola, Viet Thuc Dang, Phuong Nguyen Tran, Philip J. Mickel, Julia Oktawiec, Zhong Ren, Petr Kral, Andy I. Nguyen
Summary: By utilizing noncovalent peptide assembly, we have successfully synthesized and characterized various thiols-containing frameworks with different positions and permutations. The structures of these frameworks were determined using single-crystal X-ray diffraction, revealing their sequence-structure landscape and the cooperative noncovalent interactions involved in their assembly. These peptide-based thiol frameworks have diverse functionalities and undergo single-crystal-to-single-crystal reactions, making them suitable for various applications including metal ion coordination and redox transformations.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Shimeles Addisu Kitte, Fuad Abduro Bushira, Haijuan Li, Yongdong Jin
Summary: In this study, a simple, cheap, and sensitive detection method for thioglycolic acid (TGA) was demonstrated using an Au-S bonding amplified electrochemiluminescence (ECL) method. The developed ECL system showed direct relationship between TGA concentration and ECL intensity under optimized experimental conditions, with a good detection limit and acceptable recoveries when applied for TGA detection in cosmetics.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Medicinal
Mingju Wen, Jianbo Sun, Miao Yang, Xueling Zhang, Yue Wang, Wen Zhou, Yuning Shi, Yujing Huang, Na Li, Li Chen
Summary: Twelve new hybrid compounds of Esculetin with nitric oxide (NO) donors and/or mitochondrial targeting groups were designed, synthesized, and evaluated for their anti-tumor activity and mechanism in vitro and in vivo. The most potent compound A11 exhibited nanomolar antiproliferative activity on triple-negative breast cancer (TNBC) MDA-MB-231 cells, with a selective inhibitory effect. The mechanism involved mitochondrial targeting, releasing a high concentration of NO, increasing the expression of CypD, and triggering cancer cell apoptosis through increased ROS production, along with cell cycle arrest at the G2/M phase. Moreover, A11 demonstrated superior TNBC inhibition rate and reduced toxicity compared to doxorubicin (DOX) in vivo.
JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Electrochemistry
Xiuyun Zhao, Dingguo Xia, Juncheng Yue, Shuzhen Liu
ELECTROCHIMICA ACTA
(2014)
Article
Electrochemistry
J. Xie, D. -G. Xia
Article
Genetics & Heredity
Dingguo Xia, Yadong Wei, Guozheng Zhang, Qiaoling Zhao, Yeshun Zhang, Zhonghuai Xiang, Cheng Lu
Article
Chemistry, Physical
Bin Qiu, Xiuyun Zhao, Dingguo Xia
JOURNAL OF ALLOYS AND COMPOUNDS
(2013)
Article
Chemistry, Physical
Yuanjun Lu, Nanlin Zhang, Li An, Xiang Li, Dingguo Xia
JOURNAL OF POWER SOURCES
(2013)
Article
Chemistry, Physical
Xiaoming Hu, Dingguo Xia, Lei Zhang, Jiujun Zhang
JOURNAL OF POWER SOURCES
(2013)
Article
Biochemistry & Molecular Biology
Xin Chen, Shaorui Sun, Fan Li, Xiayan Wang, Dingguo Xia
Article
Multidisciplinary Sciences
Wei Xia, Bin Qiu, Dingguo Xia, Ruqiang Zou
SCIENTIFIC REPORTS
(2013)
Article
Multidisciplinary Sciences
Xiang Li, Li An, Xin Chen, Nanlin Zhang, Dingguo Xia, Weifeng Huang, Wangsheng Chu, Ziyu Wu
SCIENTIFIC REPORTS
(2013)
Article
Multidisciplinary Sciences
Weifeng Huang, Jing Zhou, Biao Li, Jin Ma, Shi Tao, Dingguo Xia, Wangsheng Chu, Ziyu Wu
SCIENTIFIC REPORTS
(2014)
Article
Chemistry, Physical
Xin Chen, Xiaoming Hu, Li An, Nanlin Zhang, Dingguo Xia, Xia Zuo, Xiayan Wang
Article
Chemistry, Physical
Huaifang Shang, Wangsheng Chu, Jie Cheng, Fangfang Pan, Dongming Cheng, Dingguo Xia, Wenlou Wang, Ziyu Wu
JOURNAL OF MATERIALS CHEMISTRY A
(2013)
Article
Chemistry, Physical
Yingjie Feng, Ruqiang Zou, Dingguo Xia, Lili Liu, Xidong Wang
JOURNAL OF MATERIALS CHEMISTRY A
(2013)
Article
Chemistry, Physical
Li An, Weifeng Huang, Nanlin Zhang, Xin Chen, Dingguo Xia
JOURNAL OF MATERIALS CHEMISTRY A
(2014)
Article
Chemistry, Physical
Sun Xiao-Ran, Li Guang-Yue, Xia Ding-Guo, Zhang Li-Mei, Li Fan
ACTA PHYSICO-CHIMICA SINICA
(2013)
