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      Rejuvenated Photodynamic Therapy for Bacterial Infections

      1 , 1 , 1 , 1
      Advanced Healthcare Materials
      Wiley

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          Waves of resistance: Staphylococcus aureus in the antibiotic era.

          Staphylococcus aureus is notorious for its ability to become resistant to antibiotics. Infections that are caused by antibiotic-resistant strains often occur in epidemic waves that are initiated by one or a few successful clones. Methicillin-resistant S. aureus (MRSA) features prominently in these epidemics. Historically associated with hospitals and other health care settings, MRSA has now emerged as a widespread cause of community infections. Community or community-associated MRSA (CA-MRSA) can spread rapidly among healthy individuals. Outbreaks of CA-MRSA infections have been reported worldwide, and CA-MRSA strains are now epidemic in the United States. Here, we review the molecular epidemiology of the epidemic waves of penicillin- and methicillin-resistant strains of S. aureus that have occurred since 1940, with a focus on the clinical and molecular epidemiology of CA-MRSA.
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            Aggregation-induced emission: the whole is more brilliant than the parts.

            "United we stand, divided we fall."--Aesop. Aggregation-induced emission (AIE) refers to a photophysical phenomenon shown by a group of luminogenic materials that are non-emissive when they are dissolved in good solvents as molecules but become highly luminescent when they are clustered in poor solvents or solid state as aggregates. In this Review we summarize the recent progresses made in the area of AIE research. We conduct mechanistic analyses of the AIE processes, unify the restriction of intramolecular motions (RIM) as the main cause for the AIE effects, and derive RIM-based molecular engineering strategies for the design of new AIE luminogens (AIEgens). Typical examples of the newly developed AIEgens and their high-tech applications as optoelectronic materials, chemical sensors and biomedical probes are presented and discussed.
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              Nanotechnology for Multimodal Synergistic Cancer Therapy.

              The complexity, diversity, and heterogeneity of tumors seriously undermine the therapeutic potential of treatment. Therefore, the current trend in clinical research has gradually shifted from a focus on monotherapy to combination therapy for enhanced treatment efficacy. More importantly, the cooperative enhancement interactions between several types of monotherapy contribute to the naissance of multimodal synergistic therapy, which results in remarkable superadditive (namely "1 + 1 > 2") effects, stronger than any single therapy or their theoretical combination. In this review, state-of-the-art studies concerning recent advances in nanotechnology-mediated multimodal synergistic therapy will be systematically discussed, with an emphasis on the construction of multifunctional nanomaterials for realizing bimodal and trimodal synergistic therapy as well as the intensive exploration of the underlying synergistic mechanisms for explaining the significant improvements in synergistic therapeutic outcome. Furthermore, the featured applications of multimodal synergistic therapy in overcoming tumor multidrug resistance, hypoxia, and metastasis will also be discussed in detail, which may provide new ways for the efficient regression and even elimination of drug resistant, hypoxic solid, or distant metastatic tumors. Finally, some design tips for multifunctional nanomaterials and an outlook on the future development of multimodal synergistic therapy will be provided, highlighting key scientific issues and technical challenges and requiring remediation to accelerate clinical translation.
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                Author and article information

                Journal
                Advanced Healthcare Materials
                Adv. Healthcare Mater.
                Wiley
                2192-2640
                2192-2659
                May 30 2019
                July 2019
                June 26 2019
                July 2019
                : 8
                : 14
                : 1900608
                Affiliations
                [1 ]Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
                Article
                10.1002/adhm.201900608
                31240867
                7fe22044-5920-4903-9c63-44de0d358889
                © 2019

                http://onlinelibrary.wiley.com/termsAndConditions#vor

                http://doi.wiley.com/10.1002/tdm_license_1.1

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