PubAg

Main content area

You searched for: Author "Zuo, Xiaobing" Remove constraint Author: "Zuo, Xiaobing" Subject X-radiation Remove constraint Subject: X-radiation
Start Over

Search

10  Search Results

1 - 10 of 10
Number of results to display per page

Search Results

1. Unravelling the Correlation of Electronic Structure and Carrier Dynamics in CuInS2 Nanoparticles C

Author:
Zuo, Xiaobing,   et al.   ; Hu, Wenhui; Ludwig, John; Pattengale, Brian; Yang, Sizhuo; Liu, Cunming; Zhang, Xiaoyi; Huang, Jier;     Show all 8 Authors
Source:
Journal of physical chemistry 2018 v.122 no.1 pp. 974-980
ISSN:
1932-7455
Subject:
X-radiation; X-ray absorption spectroscopy; absorption; copper; electrons; nanoparticles
Abstract:
... In this work, we report the direct correlation of photoinduced carrier dynamics and electronic structure of CuInS₂ (CIS) nanoparticles (NPs) using the combination of multiple spectroscopic techniques including steady-state X-ray absorption spectroscopy (XAS), optical transient absorption (OTA), and X-ray transient (XTA) absorption spectroscopy. XAS results show that CIS NPs contain a large amount ...
DOI:
10.1021/acs.jpcc.7b11369

2. Homogeneous and Heterogeneous (Fex, Cr1–x)(OH)3 Precipitation: Implications for Cr Sequestration

Author:
Zuo, Xiaobing,   et al.   ; Dai, Chong; Cao, Bo; Hu, Yandi;     Show all 4 Authors
Source:
Environmental Science & Technology 2016 v.50 no.4 pp. 1741-1749
ISSN:
1520-5851
Subject:
X-radiation; aquatic environment; chemical composition; chromium; iron; nanoparticles; pH; quartz
Abstract:
... The formation of (Fe, Cr)(OH)₃ nanoparticles determines the fate of aqueous Cr in many aquatic environments. Using small-angle X-ray scattering, precipitation rates of (Fe, Cr)(OH)₃ nanoparticles in solution and on quartz were quantified from 0.1 mM Fe(III) solutions containing 0–0.25 mM Cr(III) at pH = 3.7 ± 0.2. Concentration ratio of aqueous Cr(III)/Fe(III) controlled the chemical composition ( ...
DOI:
10.1021/acs.est.5b04319

3. Helical 1:1 α/Sulfono-γ-AA Heterogeneous Peptides with Antibacterial Activity

Author:
Zuo, Xiaobing,   et al.   ; She, Fengyu; Nimmagadda, Alekhya; Teng, Peng; Su, Ma; Cai, Jianfeng;     Show all 6 Authors
Source:
Biomacromolecules 2016 v.17 no.5 pp. 1854-1859
ISSN:
1526-4602
Subject:
Gram-negative bacteria; X-radiation; amino acids; antibacterial properties; antibiotic resistance; cell death; fluorescence microscopy; multiple drug resistance; pathogens; peptides; protein-protein interactions; public health
Abstract:
... As one of the greatest threats facing the 21st century, antibiotic resistance is now a major public health concern. Host-defense peptides (HDPs) offer an alternative approach to combat emerging multi-drug-resistant bacteria. It is known that helical HDPs such as magainin 2 and its analogs adopt cationic amphipathic conformations upon interaction with bacterial membranes, leading to membrane disrup ...
DOI:
10.1021/acs.biomac.6b00286
PubMed:
27030636
PubMed Central:
PMC5340309

4. New Class of Heterogeneous Helical Peptidomimetics

Author:
Zuo, Xiaobing,   et al.   ; Wu, Haifan; Qiao, Qiao; Teng, Peng; Hu, Yaogang; Antoniadis, Dimitrios; Cai, Jianfeng;     Show all 7 Authors
Source:
Organic letters 2015 v.17 no.14 pp. 3524-3527
ISSN:
1523-7052
Subject:
X-radiation; amino acids; chemical reactions; chemical structure; circular dichroism spectroscopy; nuclear magnetic resonance spectroscopy; organic compounds; peptides; temperature
Abstract:
... A new class of unnatural heterogeneous foldamers is reported to contain alternative α-amino acid and sulfono-γ-AA amino acid residues in a 1:1 repeat pattern. Two-dimensional NMR data show that two 1:1 α/sulfono-γ-AA peptides with diverse side chains form analogous right-handed helical structures in solution. The effects of sequence length, side chain, N-capping, and temperature on folding propens ...
DOI:
10.1021/acs.orglett.5b01608

5. Super-Stable, Highly Monodisperse Plasmonic Faradaurate-500 Nanocrystals with 500 Gold Atoms: Au∼500(SR)∼120

Author:
Zuo, Xiaobing,   et al.   ; Kumara, Chanaka; Ilavsky, Jan; Chapman, Karena W.; Cullen, David A.; Dass, Amala;     Show all 6 Authors
Source:
Journal of the American Chemical Society 2014 v.136 no.20 pp. 7410-7417
ISSN:
1520-5126
Subject:
X-radiation; gold; mass spectrometry; nanocrystals; nanogold; nanoparticles; transmission electron microscopy
Abstract:
... Determining the composition of plasmonic nanoparticles is challenging due to a lack of tools to accurately quantify the number of atoms within the particle. Mass spectrometry plays a significant role in determining the nanoparticle composition at the atomic level. Significant progress has been made in understanding ultrasmall gold nanoparticles such as Au₂₅(SR)₁₈ and Au₃₈(SR)₂₄, which have Au core ...
DOI:
10.1021/ja502327a

6. Au133(SPh-tBu)52 Nanomolecules: X-ray Crystallography, Optical, Electrochemical, and Theoretical Analysis

Author:
Zuo, Xiaobing,   et al.   ; Dass, Amala; Theivendran, Shevanuja; Nimmala, Praneeth Reddy; Kumara, Chanaka; Jupally, Vijay Reddy; Fortunelli, Alessandro; Sementa, Luca; Barcaro, Giovanni; Noll, Bruce C.;     Show all 10 Authors
Source:
Journal of the American Chemical Society 2015 v.137 no.14 pp. 4610-4613
ISSN:
1520-5126
Subject:
X-radiation; X-ray diffraction; crystal structure; electrochemistry; electrospray ionization mass spectrometry; gold; ligands; nanomaterials; surface plasmon resonance
Abstract:
... Crystal structure determination has revolutionized modern science in biology, chemistry, and physics. However, the difficulty in obtaining periodic crystal lattices which are needed for X-ray crystal analysis has hindered the determination of atomic structure in nanomaterials, known as the “nanostructure problem”. Here, by using rigid and bulky ligands, we have overcome this limitation and success ...
DOI:
10.1021/ja513152h

7. Assembly and Distributive Action of an Archaeal DNA Polymerase Holoenzyme

Author:
Zuo, Xiaobing,   et al.   ; Bauer, Robert J.; Wolff, Ian D.; Lin, Hsiang-Kai; Trakselis, Michael A.;     Show all 5 Authors
Source:
Journal of Molecular Biology 2013 v.425 pp. 4820-4836
ISSN:
0022-2836
Subject:
DNA; DNA replication; DNA-directed DNA polymerase; Sulfolobus solfataricus; X-radiation; adenosine triphosphate; dissociation; energy transfer; fluorescence; hydrolysis; models; proliferating cell nuclear antigen
Abstract:
... The assembly and enzymatic ability of the replication DNA polymerase holoenzyme from Sulfolobus solfataricus (Sso) was investigated using presteady-state fluorescence resonance energy transfer assays coupled with functional and structural studies. Kinetic experiments reveal that ATP binding to replication factor C (RFC) is sufficient for loading the heterotrimeric PCNA123 [proliferating cell nucle ...
DOI:
10.1016/j.jmb.2013.09.003
PubMed:
24035812

8. Self-Assembly of Rodlike Virus to Superlattices

Author:
Zuo, Xiaobing,   et al.   ; Li, Tao; Zan, Xingjie; Sun, Yong; Li, Xiaodong; Senesi, Andrew; Winans, Randall E.; Wang, Qian; Lee, Byeongdu;     Show all 9 Authors
Source:
Langmuir 2013 v.29 no.41 pp. 12777-12784
ISSN:
1520-5827
Subject:
Tobacco mosaic virus; X-radiation; aqueous solutions; bacteriophages; entropy; methylcellulose; nanoparticles; polymers; sodium chloride; temperature; transmission electron microscopy
Abstract:
... Rodlike tobacco mosaic virus (TMV) has been found to assemble into superlattices in aqueous solution using the polymer methylcellulose to induce depletion and free volume entropy-based attractive forces. Both transmission electron microscopy and small-angle X-ray scattering show that the superlattices form in both semidilute and concentrated regimes of polymer, where the free volume entropy and th ...
DOI:
10.1021/la402933q

9. X-ray scattering combined with coordinate-based analyses for applications in natural and artificial photosynthesis

Author:
Zuo, Xiaobing,   et al.   ; Tiede, David M.; Mardis, Kristy L.;     Show all 3 Authors
Source:
Photosynthesis research 2009 v.102 no.2-3 pp. 267-279
ISSN:
0166-8595
Subject:
X-radiation; chemical structure; detectors; energy conversion; photosynthesis; solar energy
Abstract:
... Advances in X-ray light sources and detectors have created opportunities for advancing our understanding of structure and structural dynamics for supramolecular assemblies in solution by combining X-ray scattering measurement with coordinate-based modeling methods. In this review the foundations for X-ray scattering are discussed and illustrated with selected examples demonstrating the ability to ...
DOI:
10.1007/s11120-009-9475-6
PubMed:
19636808
PubMed Central:
PMC2891609

10. Supramolecular porphyrinic prisms: coordinative assembly and solution phase X-ray structural characterization

Author:
Zuo, Xiaobing,   et al.   ; Lee, Suk Joong; Mulfort, Karen L.; O'Donnell, Jodi L.; Goshe, Andrew J.; Wesson, Paul J.; Nguyen, SonBinh T.; Hupp, Joseph T.; Tiede, David M.;     Show all 9 Authors
Source:
Chemical communications 2006 no.44 pp. 4581-4583
ISSN:
1364-548X
Subject:
X-radiation; X-ray diffraction; chemical reactions; nuclear magnetic resonance spectroscopy; porphyrins; prisms
Abstract:
... Supramolecular porphyrin prisms have been obtained via coordinative self-assembly and characterized by ¹H NMR, PFG NMR, electronic absorption spectroscopy and synchrotron-based measurements of solution phase X-ray scattering and diffraction. ...
DOI:
10.1039/b610025b