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Symbolism and symbolic representation serve as mechanisms for ambiguity creation, deepening meaning, engaging the reader in meaning-making, and transitioning from monosemy to polysemy. The advent of modernity, exposure to Western poetic movements—particularly Symbolism—and the oppressive sociopolitical atmosphere following the Constitutional Revolution have significantly influenced both the quantitative and qualitative transformation of symbols in Persian poetry. The interrelation and synergy of symbols, as well as the discovery of their structural connections through the extraction of \"macro-symbols\" and \"organic symbols\", provide novel methodologies for understanding the role of symbolism in contemporary Persian poetry. This study uses a descriptive-analytical approach to examine the structural relationships of symbols and symbolic networks within the poetry of Mohammad Saeed Mirzaei, identifying them as the most significant stylistic component of his literary expression. Through theoretical discussions and the extraction of micro-symbols (as fundamental quantitative units), the research delves into macro-symbols and organic symbols as structural symbolic networks in Mirzaei’s ghazals. The findings indicate that Mirzaei’s poetic symbols achieve meaning through systematic interconnections, wherein the interplay between organic and macro-symbols predominates. That is, the poet strategically positions recurrent macro-symbols at the core of one or multiple ghazals, utilizing them as organic symbols.    Keywords: Symbol, Symbolic Networks, Organic Symbol, Macro-symbol, Mohammad Saeed Mirzaei.     Introduction This research examines the symbolic structures within the poetry of Mohammad Saeed Mirzaei, a prominent neo-ghazal poet of the 1990s. The objective is a systematic analysis of the symbols and uncovering their interrelated patterns throughout his poetry. The scope of the study includes an investigation into the types of symbols employed, the organic structure of symbols within the ghazal, and their network formation across Mirzaei’s poetic compositions.  The primary research question concerns how symbols interact within Mirzaei’s poetry to create a cohesive and meaningful network, and how these structural connections contribute to the comprehension of the deeper semantic layers of his poetry. A thorough examination of the symbolic system within neo-ghazal poetry and the presentation of a precise framework for its analysis are among the core objectives of this study.  While extensive prior research has addressed the role of symbolism in Persian poetry, fewer studies have explored the symbolic networks and their structural relationships in literary texts. Works by Baraheni (2001) and Fotouhi (2006, 2008) in this field serve as foundational references for the present analysis.  The four research questions of the study include:  What connections exist among symbols in Mirzaei’s poetry? Can an organic and structured symbolic system be identified within a single ghazal? Which symbols can be considered the dominant macro-symbols of his poetry? What symbolic networks emerge within his poetry? This study is based on the premise that the symbols employed in Mirzaei’s poetry exhibit structured and meaningful interrelationships, and that their analysis facilitates the identification of symbolic connections and semantic frameworks within his poetic compositions. Additionally, the study addresses the evolution of symbolism in neo-ghazal poetry, providing a comparative perspective on stylistic patterns in contemporary Persian poetry.    Materials and Methods This research adopts a descriptive-analytical approach to examine the symbolic structure in Mohammad Saeed Mirzaei’s poetry. The study is based on a content analysis of the collection Ghazal-e Hezareh-ye Digar, comprising 71 ghazals, conducted through library-based research methods.  The structural analysis of symbols employs an inductive methodology. Initially, micro-symbols are extracted as foundational elements, enabling the identification of macro-symbols and organic symbols. Macro-symbols, due to their high frequency and broad semantic extension in Mirzaei’s poetry, play a pivotal role in his stylistic identity. Conversely, organic symbols emerge within the framework of a single ghazal and, through interaction with other imagery, contribute to the deepening of semantic layers.  The study is centered on two primary analytical axes:  Analysis of Macro-Symbols: Identification of symbols that frequently appear in Mirzaei’s poetry and transcend conventional lexical usage. Examination of Organic Symbols: Analysis of symbolic networks that develop within a single ghazal, influencing the overall semantic framework of the composition. The methodology involves a systematic extraction of symbols, their classification, and the examination of structural relationships among them. Utilizing textual analysis models, this research explores symbolic interactions across different poetic levels, with particular emphasis on ghazals where organic symbolic interconnections are more pronounced.    Research Findings The study aims to explore the symbolic system in Mohammad Saeed Mirzaei’s ghazals by analyzing linguistic data to extract semantic networks of symbols. The symbols used in his poetry primarily fall into two categories: human-related symbols and environmental symbols. Human-related symbols encompass tools, travel, locations, time references, characters, and cultural elements, which are highly prevalent in Mirzaei’s poetry. This reflects the poet’s focus on urban spaces and the psychological dimensions of contemporary life. Objects such as mirrors, chairs, tables, windows, and umbrellas play a central role in shaping themes of identity, memory, anticipation, and existential exploration. Additionally, travel and associated elements such as trains, roads, stations, and bridges symbolize movement, transformation, and the desire to escape environmental constraints.  Conversely, environmental symbols include natural phenomena, animals, plants, and celestial bodies. Frequently recurring elements such as clouds, wind, rain, the sea, and stones symbolize themes of impermanence, longing, sorrow, and hope. Unlike traditional Persian poetry, fish in Mirzaei’s works is employed as a metaphor for the modern individual and their social conditions.  Another significant finding is the role of organic symbols in Mirzaei’s poetry. These symbols function as central thematic pillars within a ghazal, shaping surrounding imagery. Examples such as windows, travel, clouds, and tables form intricate symbolic networks that enhance semantic depth and influence interpretative frameworks.    Discussion of Results and Conclusions The findings of the study indicate that symbols in Mohammad Saeed Mirzaei’s poetry attain meaning through macro-symbolic and organic interconnections rather than as isolated and fragmented elements.  Dominant symbols include mirrors, travel, windows, fish, and chairs, which, when interacting with other poetic elements, construct intricate symbolic networks. Windows and travel represent aspirations for liberation and transformation, whereas mirrors and chairs reflect introspection and mental constraints. Additionally, natural and cosmic symbols such as clouds, rain, stars, and night significantly contribute to the emotional and philosophical dimensions of his poetry.  From a Jungian psychological perspective, Mirzaei’s symbolism embodies an unconscious interplay between confinement and freedom, stillness and movement, past and future. The interconnections among objects and situations underscore the stylistic coherence of his poetic vision.

Staphylococcus aureus is a unique challenge for the healthcare system because it can form biofilms, is resistant to the host's immune system, and is resistant to numerous antimicrobial therapies. The aim of this study was to investigate the effect of poly (lactic-co-glycolic acid) (PLGA) polymer nanoparticles loaded with vancomycin and conjugated with lysostaphin (PLGA-VAN-LYS) on inhibiting S. aureus biofilm formation. Nano drug carriers were produced using the double emulsion evaporation process. we examined the physicochemical characteristics of the nanoparticles, including particle size, polydispersity index (PDI), zeta potential, drug loading (DL), entrapment efficiency (EE), Lysostaphin conjugation efficiency (LCE), and shape. The effect of the nano drug carriers on S. aureus strains was evaluated by determining the minimum inhibitory concentration (MIC), conducting biofilm formation inhibition studies, and performing agar well diffusion tests. The average size, PDI, zeta potential, DL, EE, and LCE of PLGA-VAN-LYS were 320.5 ± 35 nm, 0.270 ± 0.012, -19.5 ± 1.3 mV, 16.75 ± 2.5%, 94.62 ± 2.6%, and 37% respectively. Both the agar well diffusion and MIC tests did not show a distinction between vancomycin and the nano drug carriers after 72 h. However, the results of the biofilm analysis demonstrated that the nano drug carrier had a stronger inhibitory effect on biofilm formation compared to the free drug. The use of this technology for treating hospital infections caused by the Staphylococcus bacteria may have favorable effects on staphylococcal infections, considering the efficacy of the nano medicine carrier developed in this study.

Staphylococcus aureus exhibits the capacity to develop biofilms on various surfaces, encompassing both living and nonliving substrates, enabling it to develop resistance against the immune system and antibiotics. Therefore, this bacterium can cause numerous challenges in healthcare and treatment systems. The present study aimed to investigate the ampicillin-loaded PLGA nanoparticles’ effect on preventing the methicillin-resistant Staphylococcus aureus (MRSA) biofilm formation when it is conjugated with lysostaphin. With the use of the double emulsion evaporation technique, nanodrug carriers were created. Physicochemical attributes of the nanoparticles, such as particle size, drug loading, PDI, encapsulation efficiency, zeta potential, efficiency of lysostaphin conjugation, and morphology, were measured. Minimum inhibitory concentration (MIC), well diffusion, and other techniques were used to investigate the effect of the produced nanodrug carrier on strains of S. aureus. A toxicity test was conducted to examine the toxic effects of artificially generated nanomedicines on the L929 fibroblast culture. The nanoparticle average size, zeta potential, PDI, lysostaphin conjugation efficiency and drug loading encapsulation efficiency, and in the optimum PLGA-AMP-LYS (F4) formulation were 301.9 ± 32 nm, 0.261 ± 0.010, −19.2 ± 3.4 mV, 18.916 ± 1.6, and 94.53 ± 3.8, 40%, respectively. After 72 hours, neither the well diffusion nor MIC techniques revealed any discernible variation between ampicillin and nanodrug carriers. The biofilm investigation’s findings, however, indicated that compared to the free drug, the hindering effect of the nanodrug carrier was greater after 72 hours. The toxicity test findings revealed that the synthesized nanodrug had no toxic effects on the cells. Given the excellent efficacy of the nanomedicine carrier established in the present study, applying this technology to combat hospital-acquired infections caused by Staphylococcus bacteria could yield significant benefits in managing staphylococcal infections.